Abrégé

The invention relates to a rotor assembly system (19) of a charging system (1), in particular for a charging system (1) for a fuel cell, the rotor assembly system (19) comprising a rotor assembly (9) and a bearing arrangement (11) which supports the rotor assembly (9), and the rotor assembly (9) having a compression wheel (3), an expansion wheel (4) and a shaft (14) which is connected to the compression wheel (3) and the expansion wheel (4) for conjoint rotation, the compression wheel (3) and the expansion wheel (4) being received on a first shaft end (15) of the shaft (14), and the bearing arrangement (11), which is designed to support the shaft (14), comprising a first bearing (17) and a second bearing (18), the first bearing (17) being close to the wheels and the second bearing (18) being remote from the wheels. According to the invention, to reduce natural frequencies during operation of the rotor assembly system (19), the bearing arrangement (11) has a bearing cage (20), the rotor assembly system (19) having a vibration absorber (30), and the vibration absorber (30) being connected to the bearing cage (20) for conjoint rotation. The invention furthermore relates to a charging system (1) for a fuel cell.

Classes IPC  ?

• F04D 25/04 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/056 - Paliers
• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur
• F01D 5/10 - Dispositifs antivibratoires
• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F01D 25/04 - Systèmes antivibratoires

Abrégé

A charging system of a fuel cell includes a housing for receiving a rotatable compression wheel and a rotatable expansion wheel. The housing includes a compression section and an expansion section. The compression section is designed to receive the compression wheel and the expansion section is designed to receive the expansion wheel. The compression wheel is produced from a first material. The compression wheel and the expansion wheel are designed in the form of a single-piece system wheel which has a shaft.

Classes IPC  ?

• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• H01M 8/04014 - Échange de chaleur par des fluides gazeuxÉchange de chaleur par combustion des réactifs

Abrégé

A charging system of a fuel cell includes a housing for receiving a rotatable compression wheel and a rotatable expansion wheel. A compression section of the housing receives the compression wheel and an expansion section of the housing receives the expansion wheel. The compression section and the expansion section effect wall heat exchange of compression gases flowing in the compression section and expansion gases flowing in the expansion section. The compression wheel and the expansion wheel are a single-piece system wheel which has a shaft. A housing wall separating the compression section and the expansion section has a seal in the form of a labyrinth seal. The labyrinth seal is formed between the compression wheel and the housing wall. The expansion wheel has a smaller diameter than the compression wheel. The system wheel is liquid-repellent. A hub surface of the system wheel facing the electric motor has a projection.

Classes IPC  ?

• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• H01M 8/04014 - Échange de chaleur par des fluides gazeuxÉchange de chaleur par combustion des réactifs

Abrégé

A charging system of a fuel cell includes a housing for receiving a rotatable compression wheel and a rotatable expansion wheel. The housing includes a compression section and an expansion section. The compression section is designed to receive the compression wheel and the expansion section is designed to receive the expansion wheel. An electric motor for driving a shaft is connected at least to the expansion wheel for conjoint rotation therewith. The electric motor is accommodated in a motor housing. In order to cool the electric motor the motor housing is formed with the housing such that a flow can pass therethrough. The expansion wheel for delivering expansion gas, which flows through the expansion wheel, into the motor housing is arranged in the housing. The expansion wheel is arranged between the compression wheel and the motor housing.

Classes IPC  ?

• F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p. ex. pour la ventilation
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/10 - Joints d'étanchéité pour arbre
• F04D 29/16 - Joints d'étanchéité entre le côté du refoulement et celui de l'aspiration
• H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur

Abrégé

A control device of an exhaust gas-conducting section of a turbocharger includes a pivotable closing device with a closing element and an element lever. A first element portion thereof opens and closes a first flow cross-section of a flow connection and a second element portion opens and closes a second flow cross-section of a bypass duct of the exhaust gas-conducting section. The element lever includes a lever end portion engaging into a cavity of the closing element. A holding element is fixedly connected to the closing element. The lever end portion includes a first contact surface and, axially spaced apart, a second contact surface. The first contact surface includes an axially-extending first partial surface and a radially-extending second partial surface connected to one another by a third partial surface. The partial surfaces are designed to be able to effect contact with the closing element.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs

Abrégé

The invention relates to a charging system (1) for a fuel cell, comprising a housing (2) for receiving a rotatable compression wheel (4) and a rotatable expansion wheel (5). The housing (2) comprises a compression section (6) and an expansion section (7), wherein the compression section (6) is designed to receive the compression wheel (4), and the expansion section (7) is designed to receive the expansion wheel (5). The charging system also comprises an electric motor (9) for driving a system shaft (10) which is fixed at least to the expansion wheel (5) in a rotationally fixed manner. The electric motor (9) is received in a motor housing (8), and the compression wheel (4) and the expansion wheel (5) are arranged at a first end (18) of the system shaft (10). According to the invention, a bearing device (23) is designed to support the system shaft (10), comprising a first bearing (21) in the form of a rolling bearing and a second bearing (22) in the form of an air bearing. The system shaft (10) is designed to at least partly receive the expansion wheel (5) or the compression wheel (4), and the system shaft (10) is designed in the form of a composite shaft and has a hollow cylindrical receiving body (11) with a cavity (14). At least one magnetic body (12) is arranged in the cavity (14) so as to completely fill the cavity (14) over the cross-section thereof, and a securing element (15) is received in the cavity (14) in order to produce a rotationally fixed connection between the expansion wheel (5) or the compression wheel (4) and the system shaft (10). The second bearing (22) is designed to surround the receiving body (11).

Classes IPC  ?

• F02C 3/05 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de produits de combustion comme fluide de travail ayant une turbine entraînant un compresseur les passages du compresseur et de la turbine se trouvant sur un même rotor le compresseur et la turbine étant du type à flux radial
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F04D 25/02 - Ensembles comprenant des pompes et leurs moyens d'entraînement
• F04D 25/04 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur

Abrégé

The invention relates to an axial bearing (2) for supporting a rotatable shaft (10), having a first bearing body (12) which is fixedly connected to a bearing portion (6) of an exhaust gas turbocharger (1) and having a second bearing body (14) which rotates with the shaft (10), wherein at least the first bearing body (12) has a first sliding surface (13) with a circular ring-shaped surface (17) and with a surface profile (18), wherein a lubrication gap with lubricant is formed between the first sliding surface (13) and a second sliding surface (15) of the second bearing body (14), and having a lubricant channel (23), formed in the first bearing body (12), with a channel inlet (24) and a channel outlet (25) for supplying lubricant to the circular ring-shaped surface (17), wherein the first sliding surface (13) is formed on an end face of a disc. According to the invention, in order to carry off dirt particles present in the lubricant, the first sliding surface (13) has a particle groove (26) with a first groove end (27) and a second groove end (28) facing away from the first groove end (27), wherein the channel outlet (25) is designed to receive the first groove end (27), and wherein the second groove end (28) is formed in the radial direction at least on an outer edge (19) of the circular ring-shaped surface (17) or beyond it.

Classes IPC  ?

• F16C 33/10 - Structures relatives à la lubrification

Abrégé

The invention relates to an axial bearing (2) for supporting a rotatable shaft (10), with a first bearing body (12) fixedly connected to a bearing portion (6) of an exhaust gas turbocharger (1) and a second bearing body (14) that rotates with the shaft (10), wherein at least the first bearing body (12) has a first sliding surface (13) with a circular ring-shaped surface (17) and with a surface profile (18), wherein between the first sliding surface (13) and a second sliding surface (15) of the second bearing body (14) a lubricating gap with lubricant is formed, and with a lubricant channel (23), formed in the first bearing body (12), with a channel inlet (24) and a channel outlet (25) for supplying lubricant to the circular ring-shaped surface (17), wherein the first sliding surface (13) is formed on an end face of a sleeve, and wherein the first sliding surface (13) is designed having at least a wedge surface (32) and a detent surface (33), wherein the wedge surface (32) is inclined starting from the detent surface (33). According to the invention, in order to carry away dirt particles present in the lubricant, the first sliding surface (13) has a particle groove (26) which is formed between the wedge surface (32) and the detent surface (33) and has a first groove end (27) and a second groove end (28) facing away from the first groove end (27), wherein the channel outlet (25) is formed receiving the first groove end (27), and wherein the second groove end (28) is formed in the radial direction at least at a first outer edge (19) of the circular ring-shaped surface (17) or beyond same, and wherein a first groove cross section (NQ1) of the first groove end (27) is larger or smaller than a second groove cross section (NQ2) of the second groove end (28), and/or the particle groove (26) has a round cross section (NQ), and wherein the lubricant channel (23) has a triangular or elliptical cross section.

Classes IPC  ?

• F16C 33/10 - Structures relatives à la lubrification

Abrégé

The invention relates to an inflow device (7) of a spiral channel (6) of an exhaust gas guide section (2) of an exhaust gas turbocharger (1), said inflow device comprising an inflow section (8) and a flow section, the inflow section (8) being connected to the spiral channel (6) in a manner that allows flow to pass therethrough, and being positioned adjacent to a spiral channel inlet (9), the flow section upstream of the inflow section (8) being connected to the inflow section in a manner that allows flow to pass therethrough, the spiral channel (6) being designed to surround at least part of a turbine wheel (3) of a rotor (4) of the exhaust gas turbocharger (1), which turbine wheel is rotatably accommodated in the exhaust gas guide section (2), and the inflow device (7) being connected to an exhaust gas channel of a drive unit in a manner that allows flow to pass therethrough, it being possible for exhaust gas from the drive unit to flow through the inflow device. According to the invention, the inflow section (8) and/or the flow section is inclined with respect to a horizontal plane (H) at an angle of inclination (a) in order to separate water from the exhaust gas in the exhaust gas guide section (2), the horizontal plane (H) being perpendicular to the force of gravity (G), and the inflow section (8) and/or the flow section being positioned so as to be "descending" relative to the spiral channel inlet (9). The invention also relates to a turbocharger.

Classes IPC  ?

• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage
• F01D 25/32 - Recueil de l'eau de condensationDrainage
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to an exhaust gas guide section (2) of an exhaust gas turbocharger (1), said exhaust gas guide section comprising a spiral channel (6) which is designed to surround at least part of a turbine wheel (3) of a rotor (4) of the exhaust gas turbocharger (1), which turbine wheel is rotatably accommodated in the exhaust gas guide section (2), the exhaust gas guide section (2) being connected to an exhaust gas channel of a drive unit in a manner that allows flow to pass therethrough, it being possible for exhaust gas from the drive unit to flow through the exhaust gas guide section (2), a secondary channel (11) that surrounds at least part of the spiral channel (6) being designed to separate water from the exhaust gas in the exhaust gas guide section (2), the secondary channel (11) being connected to the spiral channel (6) in a manner that allows flow to pass therethrough. According to the invention, a lowest point (PN) of the secondary channel (11) is positioned lower in the radial direction relative to a longitudinal axis (14) of the rotor (4) than a lowest point (PS) of the spiral channel (6), and the secondary channel (11), so as to avoid disturbing the air flow in the spiral channel (6), is designed to surround the spiral channel (6) in such a way that a flow cross-section (S) of the spiral channel (6) is continuous from a spiral channel inlet (9) to a tongue of the exhaust gas guide section (2). The invention also relates to a turbocharger.

Classes IPC  ?

• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage
• F01D 25/32 - Recueil de l'eau de condensationDrainage
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to a control device (8) of an exhaust gas guide section (1) of an exhaust gas turbocharger (2), wherein the control device (8) has a closure device (9) comprising a closure element (10) and an element lever (11), wherein the closure device (9) can be swivelled about an axis of rotation (19), and wherein the closure element (10) is designed for opening and closing a first flow cross-section (13) of the exhaust gas guide section (1), wherein the first flow cross-section (13) is formed in a separating wall lying between a first spiral channel (4) of the exhaust gas guide section (1) and a second spiral channel (5) of the exhaust gas guide section (1), and wherein the exhaust gas guide section (1) has a second flow cross-section (17) which is assigned a bypass channel (18) formed in the exhaust gas guide section (1), which is designed for bypassing an impingement of a turbine wheel formed in the exhaust gas guide section (1), and wherein the closure element (10) has a first element section (15) for closing the first flow cross-section (13) and a second element section (16), which can be used for closing the second flow cross-section (17), and wherein the element lever (11) has an arm section (21) designed for engaging into a hollow space (20) of the closure element (10), and wherein the hollow space (20) has an inner surface (23) and the arm section (21) has an outer surface (24) formed opposite the inner surface (23). According to the invention, an inner casing surface (44) of the inner surface (23) and a casing surface (31) of the outer surface (24) are identical in shape while having different dimensions, wherein the casing surface (31) has at least two different casing sections (32, 33).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs

Abrégé

The invention relates to a charging system (1) of a fuel cell, comprising a housing (2) for receiving a rotatable compression wheel (3) and a rotatable expansion wheel (4), wherein the housing (2) comprises a compression section (5) and an expansion section (6); the compression section (5) is designed to receive the compression wheel (3), and the expansion section (6) is designed to receive the expansion wheel (4); the compression wheel (3) is made of a first material; and the compression wheel (3) and the expansion wheel (4) are designed in the form of a single-piece system wheel (13) which has a shaft (14).

Classes IPC  ?

• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F02C 3/045 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de produits de combustion comme fluide de travail ayant une turbine entraînant un compresseur les passages du compresseur et de la turbine se trouvant sur un même rotor
• F02C 3/05 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de produits de combustion comme fluide de travail ayant une turbine entraînant un compresseur les passages du compresseur et de la turbine se trouvant sur un même rotor le compresseur et la turbine étant du type à flux radial
• H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur
• F04D 25/02 - Ensembles comprenant des pompes et leurs moyens d'entraînement
• F04D 25/04 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide

Abrégé

The invention relates to a charging system (1) of a fuel cell, comprising a housing (2) for receiving a rotatable compression wheel (3) and a rotatable expansion wheel (4). The housing (2) comprises a compression section (5) and an expansion section (6), wherein the compression section (5) is designed to receive the compression wheel (3), and the expansion section (6) is designed to receive the expansion wheel (4). The charging system also comprises an electric motor (8) for driving a shaft (14) which is fixed at least to the expansion wheel (4) for conjoint rotation therewith, said electric motor (8) being received in a motor housing (7). According to the invention, the motor housing (7) is designed to be fluidically connected to the housing (2) in order to cool the electric motor (8).

Classes IPC  ?

• F04D 25/04 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
• H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur
• H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
• H02K 9/14 - Dispositions de refroidissement ou de ventilation dans lesquels l'agent de refroidissement gazeux circule entre l'enveloppe de la machine et une chemise extérieure
• F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage

Abrégé

The invention relates to a charging system (1) of a fuel cell, comprising a housing (2) for receiving a rotatable compression wheel (3) and a rotatable expansion wheel (4). The housing (2) comprises a compression section (5) and an expansion section (6), wherein the compression section (5) is designed to receive the compression wheel (3), and the expansion section (6) is designed to receive the expansion wheel (4). According to the invention, the compression section (5) and the expansion section (6) are designed to carry out a wall heat transfer between a compression gas flowing in the compression section (5) and an expansion gas flowing in the expansion section (6).

Classes IPC  ?

• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to an electrically assisted turbocharger (2) having: a fresh air guide portion (7), an exhaust gas guide portion (8) and a bearing portion (10); and a rotating assembly (12) comprising a shaft (11) and a compressor wheel (13) which is connected to the shaft (11) for conjoint rotation as well as a turbine wheel (14) which is connected to the shaft (11) for conjoint rotation, wherein the compressor wheel (13) is rotatably accommodated in the fresh air guide portion (7) and the turbine wheel (14) is rotatably accommodated in the exhaust gas guide portion (8), and wherein the shaft (11) is rotatably mounted in the bearing portion (10); and an electric motor (19), wherein the electric motor (19) has at least a rotor (22) and a stator (21), wherein the rotor (22) is arranged in operative connection with the shaft (11). According to the invention, the electrically assisted turbocharger (2) has a coolant channel (33) to cool the electric motor (19), wherein the coolant channel (33) is designed for coolant (34) to flow therethrough, wherein the coolant (34) downstream of the compressor wheel (13) is compressed air and can be fed thereto downstream and/or upstream of the compressor wheel (13), and wherein a sealing element (38) is formed between the electric motor (19) and the fresh air guide portion (7). The invention also relates to a drive unit (1) having an electrically assisted turbocharger (2) as well as to a method for an electrically assisted turbocharger (2).

Classes IPC  ?

• F02B 37/10 - Moteurs avec entraînement des pompes par les gaz d'échappement et par d'autres moyens, p. ex. avec une pompe entraînée par les gaz d'échappement et une seconde pompe entraînée mécaniquement une pompe au moins étant entraînée d'une façon alternée soit par les gaz d'échappement soit par un autre moyen
• F02B 39/10 - Transmissions d'entraînement non mécaniques, p. ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées
• F02B 29/04 - Réfrigération de l'air à l'admission

Abrégé

The invention relates to a system for controlling an exhaust-gas-conducting portion of an exhaust-gas turbocharger, comprising a closure device (9) which is pivotable about an axis of rotation (19) and which comprises a closure element (10) and an element lever (11), wherein: the closure element (10) is designed to open and close a first flow cross-section (13) of a spiral channel and a second flow cross-section (17) of a bypass channel of the exhaust-gas-conducting portion (1); the closure element (10) has a first element portion (15) for closing the first flow cross-section (13) and a second element portion (16) which can be used to close the second flow cross-section (17); the element lever (11) has a lever end portion (23) designed to engage in a cavity (20) of the closure element (10); the closure element (10) comprises, connected rigidly thereto, a holding element (21) of the lever end portion (23); and the surface regions (30, 31, 32) and a base (29) of the closure element (10) are planar. According to the invention, the lever end portion (23) has a first contact surface (26) and a second contact surface (27) which is spaced apart from the first contact surface (26) axially with respect to a longitudinal axis (22) of the closure element (10), the first contact surface (26) having an axially extending first surface region (30) and an axially extending second surface region (31) that are interconnected by means of a third surface region (32) formed between the two surface regions (30, 31), the surface regions (30, 31, 32) being designed to contact the closure element (10).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16K 5/00 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif

Abrégé

The invention relates to an exhaust gas turbocharger having an adjustable guide apparatus, the exhaust gas turbocharger (1) having an exhaust gas conduit portion (7) through which the flow can pass and a mounting portion (2) axially adjoining the exhaust gas conduit portion (7) for rotatable mounting of a rotor assembly (4) of the exhaust gas turbocharger (1), comprising an axis of rotation (5), the adjustable guide apparatus (12) being accommodated at least partially in the exhaust gas conduit portion (7). A carrier ring (13) of the adjustable guide apparatus (12) is designed for movable mounting of guide vanes (11), the carrier ring (13) being accommodated at least partially in a chamber (26) formed between the exhaust gas conduit portion (7) and the mounting portion (2), and the carrier ring (13) being supported with an inner face (22) on the mounting portion (2) and supported in the region of its outer face (23) on the exhaust gas conduit portion (7) with the aid of a first carrier ring face (15) facing away from the chamber (26). According to the invention, in order to secure the axial position a spring element (29) acts on the outer surface (23) of the carrier ring (13) to brace it between the mounting portion (2) and the exhaust gas conduit portion (7). The carrier ring (13) has a step (32) to accommodate the spring element (29), the spring element (29) being supported on the step (32).

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs

Abrégé

The invention relates to an adjusting device of a turbocharger, wherein: the turbocharger (1) has an exhaust gas-conducting portion (3), through which flow can pass and which has an inflow channel designed for the incoming flow to a turbine wheel arranged in the exhaust gas-conducting portion (3); the adjusting device (2) is designed to move a valve element (9), which regulates a through-flow of the inflow channel and which, with the aid of a kinematic system (11) of the adjusting device (2), is operatively connected to an actuator (10) of the adjusting device (2); the kinematic system (11) has a first kinematic member (16) and a second kinematic member (17), which are connected so as to be movable relative to one another; the movable connection is in the form of a pin-and-hole connection; the first kinematic member (16) has a hole (18), which is designed to receive a pin (19) that is fixedly connected to the second kinematic member (17); a spring element (35) is provided for radially positioning the pin (19) in the hole (18); and the spring element (35) at least partially surrounds the pin (19). According to the invention, the spring element (35) is received completely in a groove (51) of the first kinematic member (16), which groove surrounds the hole (18), the spring element being supported in the radial direction on a groove wall (52) of the groove (51).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 37/24 - Commande des pompes en utilisant des pompes ou des turbines à aubes distributrices réglables

Abrégé

The invention relates to a valve device of an exhaust gas routing portion of an exhaust gas turbocharger, with a valve system (11) comprising a valve body (9) and a valve arm (13), wherein the valve body (9) is arranged with the aid of the valve arm (13) on a valve lever arm (12) of the valve device (8) so as to be movable relative to said valve lever arm (12), wherein the valve lever arm (12) is movable with the aid of a movement device (18) of the valve device (8), and wherein the valve body (9) comprises a projection (16) which is configured to face away from the valve lever arm (12), and wherein the valve arm (13) is configured to be movable relative to the valve body (9), and wherein a guide element (41) for guiding the valve arm (13) is configured, wherein the guide element (41) is configured to engage into the valve arm (13) for the purposes of reducing wear, and wherein the valve body (9) is designed to comprise an interior chamber (23), wherein the valve arm (13) is configured to protrude into the interior chamber (23), wherein a first valve arm portion (42), received in the interior chamber (23), of the valve arm (13) is at least partially of complementary configuration, bringing about a movement gap (38) between a shell surface (39) of the first valve arm portion (42) and an inner surface (45), lying opposite the shell surface (39), of the interior chamber (23), and wherein the first valve arm portion (42) is configured to receive the guide element (41) without contact in a pot-shaped manner. The invention further relates to an exhaust gas routing portion for an exhaust gas turbocharger.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16K 1/16 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot
• F16K 1/20 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation est disposé à l'extérieur du corps de soupape

Abrégé

The invention relates to a valve apparatus of an exhaust gas conveying portion of an exhaust gas turbocharger, having a valve system (11) comprising a valve body (9) and a valve arm (13), the valve body (9) being provided on a valve lever arm (12) of the valve apparatus (8) with the aid of the valve arm (13) fastened to the valve body (9), the valve lever arm (12) being movable with the aid of a movement device (18) of the valve apparatus (8), and the valve body (9) having a projection (16) facing away from the valve lever arm (12). At least one movement gap (30) is formed between the valve system (11) and the valve lever arm (12), the valve body (9) having a valve longitudinal axis (23) and the valve arm (13) having an arm longitudinal axis (31). According to the invention, in order to prevent or reduce a relative movement formed at least between the valve system (11) and the valve lever arm (12), the valve system (11) and/or the valve lever arm (12) is designed to completely or at least partially compensate for exhaust gas forces acting on the valve system (11) and/or on the valve lever arm (12), the valve body (9) and/or the valve arm (13) and/or the arrangement thereof relative to one another being formed asymmetrically in the direction of a valve longitudinal axis (23) of the valve body (9) and/or in the radial direction. The invention further relates to an exhaust gas conveying portion (1) of an exhaust gas turbocharger (2).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16K 1/16 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot
• F16K 1/20 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation est disposé à l'extérieur du corps de soupape

Abrégé

An exhaust turbocharger includes an air-guiding section. A spiral channel is formed downstream of a wheel chamber in the air-guiding section. Between the wheel chamber and the spiral channel, a diffuser channel is formed in the air-guiding section. Upstream of the wheel chamber, an inlet channel is formed in the air-guiding section for the inflow of fluid to be compressed. In the inlet channel, a cross-section-changing unit. The cross-section-changing unit comprises an operating element with at least two movable element parts to produce a baffle which can protrude, with the aid of an adjusting unit, into the inlet cross-section rotationally and/or in a translational manner or can be removed from the inlet cross-section. The two element parts are fixedly disposed at one element end jointly in the air-guiding section. A relative movement of the element parts can be brought about in particular in an opposing direction.

Classes IPC  ?

• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air
• F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage
• F04D 29/46 - Moyens de guidage du fluide, p. ex. diffuseurs réglables

Abrégé

A connection device for an exhaust gas turbocharger has a bent first element with a first tensioning arm at a first end. A second bent element has a second tensioning arm at a second end opposite the first end. A third end of the first element is formed opposite a fourth end of the second element. The first tensioning arm and the second tensioning arm are connectable by a first connecting element. The third end and the fourth end are movably connected with each other by a second connecting element. A transition is elastically formed between the respective tensioning arm and a supporting portion of the particular element, which extends between the tensioning arm and the third or fourth, respectively, end. The first element or the second element is formed in a profiled manner.

Classes IPC  ?

• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations
• F01D 25/28 - Dispositions pour le support ou le montage, p. ex. pour les carters de turbines
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to an adjustable guide apparatus for an exhaust gas guide section of an exhaust gas turbocharger, comprising a bearing ring (4) having a plurality of guide vanes (5), wherein the guide vanes (5) are rotatably mounted on the bearing ring (4) by means of guide vane shafts (7) and wherein an adjustment lever (9) is associated with each guide vane shaft (7) for rotation of the guide vane (5), the end region (13), facing away from the guide vane (5), of which adjustment lever engages in a rotating ring (3) of the adjustable guide apparatus (2), which rotating ring is rotatable about a central axis (30) of the adjustable guide apparatus (2), wherein, for engagement of the adjustment lever (9) in the rotating ring (3), said rotating ring (3) has recesses (10), a recess (10) being associated with each adjustment lever (9). According to the invention, an insert element (18) is arranged in the recess (10) in order to reduce wear and friction between the adjustment lever (9) and the rotating ring (3), wherein the adjustment lever (9) is received at least in part in the insert element (18). The invention furthermore relates to an exhaust gas guide section for an exhaust gas turbocharger and to an exhaust gas turbocharger.

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

An exhaust gas-conducting section of an exhaust turbocharger comprises a duct with a through-flow opening which can be fully or at least partially blocked or released by a closure element of a control device. The closure element is designed as a poppet valve. The closure element can be moved by an actuator can be disposed in a wall of the exhaust gas-conducting section. The closure element has a closure body with an annular section surface on its bottom surface which faces the through-flow opening. The section surface corresponds to an element seat formed in the wall. Its top surface faces away from the bottom surface and is designed in a profiled manner in order to produce a top surface at least partially corresponding to another element seat and/or to achieve flow-optimized circulation.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 25/12 - Refroidissement
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs
• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air
• F16K 1/44 - Détails du siège ou du corps de soupape pour les soupapes à double siège
• F16K 11/044 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape ou de clapet mobiles situés entre des sièges de soupape ou de clapet
• F16K 11/20 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout actionnés par des organes de commande distincts
• F16K 31/122 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide le fluide agissant sur un piston
• F16K 43/00 - Moyens de fermeture auxiliaire des soupapes, pouvant prendre à leur compte, en cas de réparation de la soupape, p. ex. un regarnissage des rondelles, la fonction des moyens normaux de fermetureDispositifs pour le remplacement temporaire des parties de soupapes dans le même but
• F16K 49/00 - Moyens portés par ou sur les soupapes pour chauffer ou refroidir

Abrégé

An exhaust gas turbocharger includes a turbine casing (4) within which a turbine wheel (10) is rotatably arranged relative to an axis of rotation (1). A guide vane ring (22) is non-rotatably arranged which comprises variable guide vanes (44) which are arranged upstream of the turbine wheel (10) with respect to an exhaust gas flow. The guide vane ring (22) is centered by means of a matched pair of two contact surfaces (24, 26) pressed against each other with respect to the turbine casing (4), of which at least the one contact surface (24 or 26, respectively) is formed conically.

Classes IPC  ?

• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs

Abrégé

The invention relates to an exhaust gas turbocharger with a manifold-flow casing, in particular a dual-flow casing (47) and a turbine wheel (34) which is rotatably arranged within said manifold-flow casing, onto which an exhaust gas flow (14; 16) may be led via at least one of several flow channels (18, 26), and an outlet opening (78; 80) following said one flow channel (18, 26) and covering an angle of 180° max. about an axis of rotation (44) of the turbine wheel (34), so that a shaft (38) is rotating which is arranged coaxially and non-rotationally relative to the turbine wheel (34), which is supported in a shaft bearing (42).

Classes IPC  ?

• F04D 29/056 - Paliers
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs

Abrégé

The invention relates to a rotor for a turbocharger, comprising a hub (1) and a plurality of rotor blades (9) which are fastened to the hub and are arranged on the hub (1) such that a medium flowing through the turbocharger (24) can flow around them, and a blade channel (10) being formed between each pair of rotor blades (9), the blade channel (10) having a blade channel length (SL), the blade channel length (SL) extending away from a hub back (3) towards a hub nose (23) remote from the hub back (3). According to the invention, the blade channel (10) has a recess (8) extending in the radial direction, in the circumferential direction of the rotor (2) and in the axial direction. The invention also relates to a turbocharger (24) and to a method for producing a turbine wheel.

Classes IPC  ?

• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• F01D 5/04 - Organes de support des aubes, p. ex. rotors pour "machines" ou machines à flux radial
• F01D 5/10 - Dispositifs antivibratoires
• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges

Abrégé

The invention relates to a clamp (13) for a turbocharger, wherein the clamp (13) is arranged so as to surround two housing portions (2, 3) which are to be connected and which belong to a housing of the turbocharger, with the one housing portion (3) receiving a shaft (5) mounted rotatably therein, and the other housing portion (2) receiving either a turbine wheel (4) or a compressor wheel of the turbocharger (1). The clamp (13) is provided with a tensioning screw (17), by means of which two ends (16, 18) of the clamp (13) which are formed as screw-receiving collars (20, 21) can be pulled in the directions (44, 45) pointing towards one another in relation to a longitudinal axis (34) of the tensioning screw (17) by screwing the tensioning screw (17) in the first direction (44). A tongue edge (46) of a spring-elastic tongue (47) of a sheet-metal part (28) engages in a thread (48) of the tensioning screw (17), which sheet-metal part is supported on the clamp (13) or is formed in one part with the clamp (13). According to the invention, the tongue (47) is bent out from a plane (49) arranged perpendicular to the longitudinal axis (34) and in the first direction (44) in such a way that a higher frictional torque must be overcome between the tongue edge (46) and the tensioning screw (17) to release the tensioning screw (17) than to screw in the tensioning screw (17). The invention furthermore relates to a turbocharger having such a clamp (13).

Classes IPC  ?

• F01N 13/18 - Structure facilitant la fabrication, l'assemblage ou le démontage
• F16B 7/18 - Assemblages de barres ou assemblages de tubes, p. ex. de section non circulaire, y compris les assemblages élastiques utilisant des éléments filetés

Abrégé

The invention relates to a valve device for a turbocharger (1). The turbocharger has an exhaust-gas-conducting portion (4), through which flow can pass and which has a spiral channel (10) and a volute, and the turbocharger has a bypass channel (14) having a flow cross-section for bypassing a turbine wheel (3) rotatably received in the exhaust-gas-conducting portion (4) and/or having an additional spiral channel and an additional volute, which are separated, in a manner allowing flow therethrough, from the spiral channel (10) and the volute by means of a separating wall. A separating wall opening having a flow cross-section is formed in the separating wall. The flow cross-section can be closed and opened by means of the valve device (12). When the valve device (12) is open, exhaust gas can flow therethrough. The valve device (12) has a valve (30), which has a closing body (17) having a longitudinal axis (18) and which has a lever arm (25). When the valve device (12) is closed, the closing body (17) lies against a wall of the bypass channel (14) surrounding the flow cross-section and/or against the separating wall. The closing body (17) can be pivoted about a shaft axis (22) of an adjustment shaft (21), which shaft axis is arranged perpendicularly to the longitudinal axis (18), by means of a lever arm (25) in order to open and close the flow cross-section. The lever arm (25) lies against an arm support (36) of a spring element (29), which arm support comprises a retaining element (26). Said spring element has a spring arm (35; 49; 50), which extends outward from the arm support (36) radially with respect to the longitudinal axis (18) and lies against the closing body (17). According to the invention, for vibration damping and rotation avoidance of the closing body (17), the valve (30) has a receiving opening (38; 51; 52) for receiving the spring arm (35; 49; 50) in the lever arm (25) and/or in the closing body (17), the lever arm (25) having at least one receiving opening (38; 51; 52) if the lever arm (25) is designed to receive the spring arm (35; 49; 50), and the closing body (17) having at least two receiving openings (38, 51; 52) if the closing body (17) is designed to receive the spring arm (35; 49; 50).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16K 1/20 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation est disposé à l'extérieur du corps de soupape
• F16K 1/50 - Dispositifs empêchant la rotation des corps de soupapes
• F01D 17/10 - Organes de commande terminaux
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

An adjustable guide apparatus for a turbine, comprising a bearing ring with a plurality of guide vanes, wherein the guide vanes are rotatably mounted on the bearing ring with the aid of guide vane shafts, wherein in order to position the guide vane, the guide vane shaft is allocated an adjusting lever which engages in a rotatable rotating ring of the adjustable guide apparatus, and wherein, in order to be held in an exhaust gas guiding section of the turbine, the adjustable guide apparatus has a support ring, and wherein the support ring serves to mount the rotating ring. The rotating ring is radially and/or axially guided with the aid of at least one guiding element, wherein the guiding element is received on the support ring. Furthermore, the invention relates to a turbine with an adjustable guide apparatus and to an exhaust turbocharger.

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F02B 37/24 - Commande des pompes en utilisant des pompes ou des turbines à aubes distributrices réglables
• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

An adjustable guide apparatus for a turbine, comprising a bearing ring with a plurality of guide vanes, wherein the guide vanes are rotatably mounted on the bearing ring with the aid of guide vane shafts, wherein, in order to position the guide vane, the guide vane shaft is allocated an adjusting lever which is designed to be able to engage in a rotatable rotating ring of the adjustable guide apparatus, and wherein, in order to be held in an exhaust gas guiding section of the turbine, the adjustable guide apparatus has a support ring, and wherein the support ring serves to mount the rotating ring. In accordance with the invention the rotating ring is formed to be free of contact with the support ring. Furthermore, the invention relates to a turbine and to an exhaust turbocharger.

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F02B 37/24 - Commande des pompes en utilisant des pompes ou des turbines à aubes distributrices réglables
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

A connection device for an exhaust gas turbocharger includes an essentially bent first element and an essentially bent second element. The first element has a radially extending first clamping arm in a first end region and the second element has a radially extending second clamping arm in the first end region opposite the first clamping arm. The first element is movably connected with the second element in a second end region. The first clamping arm and the second clamping arm may be movably connected by a first connecting element of the connection device. The first element comprises a first supporting portion and the second element comprises a second supporting portion between the two end regions. A stiffening element is formed in a transition region between the clamping arm and the supporting portion for increasing the strength of the connection device.

Classes IPC  ?

• F16B 7/04 - Assemblages par brides ou clips
• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations
• F01D 25/26 - Carcasses d'enveloppe doublesMesures contre les tensions thermiques dans les carcasses d'enveloppe
• F16B 9/02 - Assemblages démontables
• F16L 23/04 - Raccords à brides les brides étant raccordées par des organes tendus dans le plan radial

Abrégé

A regulating device for an exhaust turbocharger, is received in an exhaust gas conducting section of the exhaust turbocharger, with the aid of the regulating device a fluid flow onto a turbine wheel rotatably received in the exhaust gas conducting section can be conditioned, a through-flow opening formed in the exhaust gas conducting section is to be opened and closed with the aid of a valve element of the regulating device, the valve element is arranged on a pivot arm of the regulating device, and wherein the valve element has a sealing surface for avoiding a leak in a closed position of the regulating device. To reduce secondary torques acting upon the valve element during operation, a connection is formed between the pivot arm and the valve element in or at least close to a center of gravity of an effective valve element body of the valve element.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16K 11/078 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture articulés à pivot et se déplaçant linéairement
• F16K 11/085 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix cylindrique
• F01N 5/04 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant l'énergie cinétique

Abrégé

The invention relates to a bearing section for a turbocharger (2), comprising a section housing (3), in which a bearing device (6) comprising a bearing bush (7) is arranged in a receiving cut-out (10) of the section housing, wherein: a shaft (4) is rotatably received in an interior (11) of the bearing bush; a fastening element (15) is designed to fasten the bearing bush in the section housing; and the bearing bush is designed in the form of a semi-floating bearing. According to the invention, the fastening element is used to supply lubricant to an exterior surface (23) of the bearing bush, and the supply of lubricant to the interior of the bearing bush is prevented, the fastening element being removable without destruction. The invention further relates to a turbocharger.

Classes IPC  ?

• F16C 27/02 - Paliers à contact lisse
• F16C 33/08 - Fixation des coussinets, bagues ou garnitures du corps du palier
• F16C 33/10 - Structures relatives à la lubrification
• F16C 35/02 - Supports rigides de paliersCorps de paliers, p. ex. calottes, couvercles dans le cas de paliers à contact lisse
• F16C 43/02 - Assemblage des éléments de paliers à contact glissant

Abrégé

A bearing section for an exhaust turbocharger comprises a receiving opening for receiving a shaft of a rotor assembly of the exhaust turbocharger. The bearing section is designed for positioning bearing elements for supporting the shaft. A lubricant circuit is designed for supplying lubricant to the bearing elements. Lubricant channels are formed in the bearing section. In order to reduce a component temperature of the bearing section, a cooling jacket is provided, through which coolant can flow. The cooling jacket comprises a coolant channel, an inlet channel and an outlet channel. The inlet channel issues at a first opening point into the coolant channel and the outlet channel is connected at a second opening point to the coolant channel in such a way that a flow can pass therethrough. A rib is provided in the coolant channel.

Classes IPC  ?

• F01D 25/12 - Refroidissement
• F01D 25/14 - Carcasses d'enveloppe modifiées à cet effet
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

The invention relates to a turbocharger (2) in which an exhaust gas flow (5) can be guided past a turbine wheel (10) via an open wastegate valve (22 or 122). The valve has a valve plate (43) which has a longitudinal axis and which closes a bypass opening (46) in a closed state of the wastegate valve (22 or 122) in that the valve plate (43) is pressed against a valve seat (44) by means of an actuation arm (40) via a joint (42) which has a spherical joint part (48) and has three degrees of freedom, said valve seat surrounding an opening (47) of the bypass opening (46). The actuation arm (40) can be pivoted about a pivot axis (32) in order to open the wastegate valve (22 or 122), said pivot axis being arranged transversely and offset to the longitudinal axis (41) of the valve plate (43), which is rigidly connected to the spherical joint part (48) aligned coaxially to the longitudinal axis (41), and the joint part is pressed against a surface (50) of a recess (52) in the actuation arm (40) under the force of a spring (60) in the form of a spring disc. The actuation arm adjoins a through-opening (62) through which a pin (65) passes with a radial spacing (64), said pin adjoining the spherical joint part (48) and being connected to a disc (66) outside of the opening. The disc rests against one end of the spring (60) in a biased manner, and the other end of the spring is supported against a spherical region (55) protruding from the actuation arm (40) and is movably arranged thereon in a sliding manner, said spherical region (55) surrounding the through-opening (62). According to the invention, the spherical joint part (48) and the spherical region (55) have substantially the same center (54).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement

Abrégé

The invention relates to a control device for an exhaust-gas-conducting section of a turbocharger. The exhaust-gas-conducting section (3), through which flow can pass, has at least one channel (4; 5; 53) through which flow can pass, which channel has a flow opening (7; 52), which can be completely or at least partially blocked or opened by means of a closing element (8) of the control device (2). The control device (2) comprises an actuator (10) for moving the closing element (8). The closing element (8) is designed as a poppet valve. The closing element (8) can be brought at least into a first position for opening the flow opening (7; 52) and into a second position for blocking the flow opening (7; 52). The closing element can be arranged in a wall of the exhaust-gas-conducting section (3) at least in one of the positions. According to the invention, the closing element (8) has a closing body (11) that closes or opens the flow opening (7; 52), which closing body has, on the bottom surface (20) thereof facing the flow opening (7; 52), an annular section surface (19), which is designed to correspond to an element seat (14; 15; 65) formed in the wall, the top surface (21) of the closing body, which faces away from the bottom surface (20), being profiled in order to provide a top surface (21) at least partially corresponding to another element seat (15; 14) and/or in order to obtain flow-optimized flow around.

Classes IPC  ?

• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air
• F16K 1/00 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation
• F16K 1/44 - Détails du siège ou du corps de soupape pour les soupapes à double siège
• F16K 11/04 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets
• F16K 11/044 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape ou de clapet mobiles situés entre des sièges de soupape ou de clapet
• F16K 11/20 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout actionnés par des organes de commande distincts
• F16K 31/122 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide le fluide agissant sur un piston
• F16K 43/00 - Moyens de fermeture auxiliaire des soupapes, pouvant prendre à leur compte, en cas de réparation de la soupape, p. ex. un regarnissage des rondelles, la fonction des moyens normaux de fermetureDispositifs pour le remplacement temporaire des parties de soupapes dans le même but

Abrégé

The invention relates to a turbocharger with a turbine housing (4), within which a turbine wheel (10) is arranged in a rotatable manner with respect to a rotational axis (1) and a guide blade ring (22) is arranged in a rotationally fixed manner, said guide blade ring having adjustable guide blades (44) arranged upstream of the turbine wheel (10) with respect to an exhaust gas flow. According to the invention, the guide blade ring (22) is centered with respect to the turbine housing (4) by means of a pair of support surfaces (24, 26) which are pressed against each other and at least one contact surface (24 or 26) of which has a conical design.

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs

Abrégé

The invention relates to an exhaust gas control valve (19) with a housing (25) having a housing recess (28) with an essentially cylindrical inner housing wall (34) which is interrupted by three communication openings (29, 30, 31) which are arranged offset with respect to one another in a circumferential manner in such a way that a blocking member (24) which is arranged within the housing recess (28) and is rotatable about its central axis (36) can release an exhaust gas passage (44) between at least two of the three communication openings (29, 30, 31) and can cover and thus block at least one of the three communication openings (29, 30, 31). According to the invention, the blocking member (24) for covering one of the communication openings (29, 30, 31) has one of two blocking sections (24a, 24b), between which the exhaust gas passage (44) extends.

Classes IPC  ?

• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air
• F16K 3/26 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation en forme de surfaces de solides de révolution avec corps de tiroir cylindrique le passage du fluide se faisant par le corps du tiroir

Abrégé

An air-guiding section for an exhaust-gas turbocharger, wherein the air-guiding section (1) is designed such that flow can pass through it, and wherein a wheel chamber (5) is designed to receive a compressor wheel (4) having a plurality of impeller blades (8) in a rotatable manner, and comprising a spiral duct (9) which is formed downstream of the wheel chamber (5) in the air-guiding section (1), wherein a diffusor duct (10) is formed in the air-guiding section (1) between the wheel chamber (5) and the spiral duct (9), and wherein an inlet duct (11) is formed in the air-guiding section (1) upstream of the wheel chamber (5) in order to allow fluid that is to be compressed to flow in, and wherein a cross-sectional variation unit (12) for changing an inlet cross section (13) of the inlet duct (11) is arranged in the inlet duct (11). According to the invention, the cross-sectional variation unit (12) has, to change the inlet cross section (13), an active element (15) which, with a substantially uniform circumferential length of its cross-sectional profile (17), is designed to cause a change in the inlet cross section (13), wherein a first profile section (18) is designed to be variable in its position relative to the inlet duct (11), and a second profile section (19) is received immovably in the air-guiding section (1).

Classes IPC  ?

• F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage
• F04D 29/46 - Moyens de guidage du fluide, p. ex. diffuseurs réglables
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to an air-guiding section for an exhaust gas turbocharger, wherein the air-guiding section (1) is designed such that a fluid can flow through it, and wherein a wheel chamber (5) is designed to have a plurality of impeller vanes (8) for receiving a compressor wheel (4) in a rotatable manner, and comprising a spiral duct (9) which is formed downstream of the wheel chamber (5) in the air-guiding section (1), wherein a diffusor channel (10) is formed in the air-guiding section (1) between the wheel chamber (5) and the spiral duct (9), and wherein an inlet duct (11) is formed in the air-guiding section (1) upstream of the wheel chamber (5) in order to allow fluid that is to be compressed to flow in, and wherein a cross-sectional variation unit (12) for changing an inlet cross-section (13) of the inlet duct (11) is arranged in the inlet duct (11). According to the invention, the cross-sectional variation unit (12) has an active element (14) for changing the inlet cross-section (13), said active element having at least two element parts (17, 18) which are designed to be movable in order to form a diaphragm (16) which is designed to protrude in a translatory and/or rotational manner into the inlet cross-section (13) or to be removable from the inlet cross-section (13) by means of an adjustment unit (15). The invention further relates to an air-guiding section (1) for an exhaust gas turbocharger (2).

Classes IPC  ?

• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/46 - Moyens de guidage du fluide, p. ex. diffuseurs réglables
• F04D 27/02 - Contrôle de l'emballement
• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air
• F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage

Abrégé

The invention relates to a radial bearing for an exhaust-gas turbocharger, wherein the radial bearing is designed as a plain bearing and comprises a bearing bushing (6) that is designed so as to be able to accommodate a shaft (3) of the exhaust-gas turbocharger (2), and wherein there is designed at least one face (5), surrounding the shaft (3), of the radial bearing (1), and wherein the bearing bushing (6) has a lubricant inlet (7), and wherein the bearing bushing (6) is designed so as to enclose a cavity (13), wherein the face (5) is configured so as to match an outer face (15) of the cavity (13), and wherein the radial bearing (1) has a longitudinal axis (14) and a central plane (19). According to the invention, the cavity (13) is designed so as to have a cross section (QH) in the form of a hypotrochoid, wherein the hypotrochoid has, in order to contribute lubrication pockets (8), a maximum distance (AMAX) from the longitudinal axis (14) and a minimum distance (AMIN) from the longitudinal axis (14). The invention also relates to an exhaust-gas turbocharger.

Classes IPC  ?

• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F02C 7/06 - Aménagement des paliersLubrification
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
• F16C 33/10 - Structures relatives à la lubrification

Abrégé

The invention relates to a turbocharger (2) with a compressor housing (14), within which an inflow region (20) for charge air is located, followed in succession downstream in the direction towards a compressor duct (22) for an intake system of an internal combustion engine (4) by an inducer wheel (26) and a compressor wheel (8), the compressor wheel (8) being able to rotate about a center axis (6) and the inducer wheel (26) being rotatably mounted by means of a bearing device (28). According to the invention, the bearing device (28) is arranged radially outside the center axis (6) in such a way that the center axis (6) lies in the inflow region (20) of the charge air.

Classes IPC  ?

• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F04D 17/02 - Pompes à flux radial spécialement adaptées aux fluides compressibles, p. ex. pompes centrifugesPompes hélicocentrifuges spécialement adaptées aux fluides compressibles ayant des étages non centrifuges, p. ex. centripètes
• F04D 17/12 - Pompes multiétagées
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F02C 9/16 - Commande du débit du fluide de travail

Abrégé

A rotor disk for an exhaust turbocharger is mounted in a housing of the exhaust turbocharger able to rotate about an axis of rotation. The rotor disk has a disk hub comprising a disk back and a disk front remote from the disk back. A plurality of rotor disk blades are formed on the disk hub in a manner extending between the disk back and the disk front. A balancing mark is arranged in a blade channel formed between a first blade of the plurality of rotor disk blades and a second blade, arranged adjacent to the first blade, of the plurality of rotor disk blades. A width of the balancing mark is less than a length of the balancing mark. The disclosure also relates to an exhaust turbocharger comprising such a rotor disk and to a method for balancing a rotor assembly for such an exhaust turbocharger.

Classes IPC  ?

• F01D 25/04 - Systèmes antivibratoires
• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• G01M 1/34 - Compensation du balourd par soustraction de matière de l'objet à tester, p. ex. de la surface de roulement de pneus

Abrégé

The invention relates to an impeller for a turbocharger. The impeller (1) is mounted in a housing of the turbocharger (3) in a rotatable manner about an axis of rotation, wherein the impeller (1) and has an impeller hub (5) comprising an impeller back (6) and an impeller front facing away from the impeller back (6), and a plurality of impeller blades (4) are formed on the impeller hub (5) so as to extend between the impeller back (6) and the impeller front. A balancing mark (11) is arranged in a blade channel (9) formed between a first blade (7) of the plurality of impeller blades (4) and a second blade (8) of the plurality of impeller blades (4), said second blade being arranged adjacently to the first blade (7). According to the invention, the balancing mark (12) is triangular-like. The invention additionally relates to a turbocharger comprising such an impeller and to a method for balancing a rotor assembly for such a turbocharger.

Classes IPC  ?

• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• F01D 5/04 - Organes de support des aubes, p. ex. rotors pour "machines" ou machines à flux radial
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• G01M 1/34 - Compensation du balourd par soustraction de matière de l'objet à tester, p. ex. de la surface de roulement de pneus

Abrégé

The invention relates to an exhaust gas turbocharger comprising a manifold flow housing, in particular a dual flow housing (47), and a turbine wheel (34) which is rotatably arranged within this manifold flow housing, and onto which an exhaust gas flow (14; 16) can be directed via at least one of multiple flow channels (18, 26) and an outlet opening (78; 80), which is connected to said one flow channel (18; 26) and encompasses an angle of max. 180° about an axis of rotation (44) of the turbine wheel (34), such that a shaft (38) arranged coaxially and rotationally fixed relative to the turbine wheel (34), and mounted in a shaft bearing (42), rotates. According to the invention, the shaft bearing (42) is a multi-surface radial sliding bearing with a number of bearing surfaces (70, 72, 74, 76) that is either equal to a number of the flow channels (18, 26) or an integral multiple of the number of flow channels (18, 26).

Classes IPC  ?

• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F01D 25/18 - Systèmes de lubrification
• F16C 17/18 - Paliers à contact lisse pour mouvement de rotation exclusivement caractérisés par des particularités sans rapport avec la direction de la charge avec coussinets ou bagues flottants, tournant à vitesse réduite
• F16C 33/10 - Structures relatives à la lubrification
• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage

Abrégé

The invention relates to an air-conducting section for an exhaust gas turbocharger. The air-conducting section (1) is designed such that a fluid can flow through it, and a wheel chamber (6) is designed to receive a compressor wheel (4) having a plurality of impeller vanes (8), with a spiral channel (9) formed downstream of the wheel chamber (6) in the air-conducting section (1). An inlet channel (11) is formed in the air-conducting section (1) upstream of the wheel chamber (6) in order to allow fluid that is to be compressed to flow in, and a cross-section-changing device (12) for changing an inlet cross-section (13) of the inlet channel (11) is arranged in the inlet channel (11). According to the invention the cross-section-changing device (12) is designed to change the inlet cross-section (13) starting from a minimum compressor wheel inlet diameter (DK) proceeding to a maximum compressor wheel inlet diameter (DG). The invention further relates to an air-conducting section (1) for an exhaust gas turbocharger (2).

Classes IPC  ?

• F04D 27/02 - Contrôle de l'emballement
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/46 - Moyens de guidage du fluide, p. ex. diffuseurs réglables

Abrégé

An exhaust gas guide section for an exhaust gas turbocharger includes an actuator (1) with a wastegate (9) for opening and closing a bypass channel (31) of the exhaust gas guide section (1), wherein the bypass channel (31) is provided in the exhaust gas guide section (1) that can be flowed through to bypass a turbine wheel of the exhaust gas guide section (1) which is rotatably arranged in the exhaust gas guide section (1) in a wheel chamber of the exhaust gas guide section (1), and wherein the bypass channel (31) has a second flow cross section (33).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs

Abrégé

The invention relates to an adjustable guide apparatus for a turbine, comprising a bearing ring (2) having a plurality of guide vanes (3), wherein the guide vanes (3) are rotatably mounted on the bearing ring (2) by means of guide vane shafts (5), wherein an adjusting lever (6) is associated with the guide vane shaft (5) for positioning the guide vane (3), said adjusting lever being designed to be engageable in a rotatable rotating ring (7) of the adjustable guide apparatus (1), and wherein the adjustable guide apparatus (1) has a support ring (9) for mounting in an exhaust routing portion of the turbine, and wherein the support ring (9) serves for bearing the rotating ring (7). According to the invention, the rotating ring (7) is designed to have zero contact with the support ring (9). The invention further relates to a turbine and to an exhaust turbocharger.

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F04D 29/46 - Moyens de guidage du fluide, p. ex. diffuseurs réglables
• F02B 37/24 - Commande des pompes en utilisant des pompes ou des turbines à aubes distributrices réglables

Abrégé

The invention relates to an adjustable guiding apparatus for a turbine, comprising a race (2) with a plurality of guide vanes (3), the guide vanes (3) being rotatably mounted on the race (2) by means of guide vane shafts (5), in which an adjusting lever (6) is associated with the guide vane shaft (5) for positioning the guide vane (3), said adjusting lever being designed such that it can engage in a rotatable rotating ring (7) of the adjustable guiding apparatus (1), and the adjustable guiding apparatus (1) comprises a supporting ring (9) for mounting in an exhaust gas guiding section of the turbine, the supporting ring (9) supporting the rotating ring (7). According to the invention, the rotating ring (7) is radially and/or axially guided by means of at least one guiding element (14), the guiding element (14) being received on the supporting ring (9). The invention futher relates to a turbine with an adjustable guiding apparatus and a turbocharger.

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F04D 29/46 - Moyens de guidage du fluide, p. ex. diffuseurs réglables
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F02B 37/24 - Commande des pompes en utilisant des pompes ou des turbines à aubes distributrices réglables

Abrégé

The invention relates to a regulating device for a turbocharger, wherein the regulating device (1) is received in a turbocharger exhaust gas conducting section through which exhaust gas can flow, and wherein a fluid flow to a turbine wheel which is rotatably received in the exhaust gas conducting section can be conditioned using the regulating device. A flow opening which is formed in the exhaust gas conducting section is to be opened and closed using a valve element (2) of the regulating device (1), wherein the valve element (2) is arranged on a pivot arm (4) of the regulating device (1), which pivot arm (4) can be pivoted about an axis of rotation (17), and wherein the valve element (2) has a valve body (5) comprising an insert element (7) that is largely received in a hollow chamber (29) of the valve body (5) and is operationally connected to the pivot arm (4), more particularly with the aid of a lever arm (3), and wherein the valve element (2) has a sealing surface (22) to avoid a leak in a closed position of the regulating device (1). According to the invention, particularly for reducing secondary torques acting on the valve element (2) during operation, a connection is formed between the pivot arm (4) and the valve element (2) in or at least close to a centre of gravity of an effective valve element body (31) of the valve element (2). The invention relates to a regulating device for a turbocharger, wherein the regulating device (1) is received in a turbocharger exhaust gas conducting section through which exhaust gas can flow, and wherein a fluid flow to a turbine wheel which is rotatably received in the exhaust gas conducting section can be conditioned using the regulating device. A flow opening which is formed in the exhaust gas conducting section is to be opened and closed using a valve element (2) of the regulating device (1), wherein the valve element (2) is arranged on a pivot arm (4) of the regulating device (1), which pivot arm (4) can be pivoted about an axis of rotation (17), and wherein the valve element (2) has a valve body (5) comprising an insert element (7) that is largely received in a hollow chamber (29) of the valve body (5) and is operationally connected to the pivot arm (4), more particularly with the aid of a lever arm (3), and wherein the valve element (2) has a sealing surface (22) to avoid a leak in a closed position of the regulating device (1). According to the invention, particularly for reducing secondary torques acting on the valve element (2) during operation, a connection is formed between the pivot arm (4) and the valve element (2) in or at least close to a centre of gravity of an effective valve element body (31) of the valve element (2).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16K 1/20 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation est disposé à l'extérieur du corps de soupape
• F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage

Abrégé

The invention relates to a connection device for a turbocharger, comprising a substantially bent first element (2) and a substantially bent second element (3). The first element (2) and the second element (3) are connected together in a releasable manner in a first end region (6) or a second end region (7) and in a movable manner in a third end region (17) or a fourth end region (21). A first receiving section (16) extends between the first end region (6) and the third end region (17), and a second receiving section (19) extends between the second end region (7) and the fourth end region (21). According to the invention, the connection device (1) has a receiving area (27) formed in the element (2; 3) in order to reduce stress. The invention further relates to a turbocharger comprising a connection device (1).

Classes IPC  ?

• F01N 13/18 - Structure facilitant la fabrication, l'assemblage ou le démontage
• F02B 67/10 - Moteurs caractérisés par l'agencement d'appareils auxiliaires non prévu ailleurs, p. ex. un appareil ayant des fonctions différentesEntraînement non prévu ailleurs de ces appareils auxiliaires par les moteurs d'appareils d'alimentation ou de balayage
• F16B 7/18 - Assemblages de barres ou assemblages de tubes, p. ex. de section non circulaire, y compris les assemblages élastiques utilisant des éléments filetés
• F16L 23/08 - Raccords à brides les brides étant raccordées par des organes tendus dans le plan radial raccordées par broche et écrou fileté disposés tangentiellement

Abrégé

The invention relates to a connection device for an exhaust turbocharger, having a substantially curved first element (2) and a substantially curved second element (3), wherein the first element (2) has, in a first end region (13) of the connection device (1), a radially extending first clamping arm (8), and the second element (3) has, in the first end region (13), a radially extending second clamping arm (11), formed opposite the first clamping arm (8), and wherein the first element (2) is designed to be movably connected to the second element (3) in a second end region (14) of the connection device (1) facing away from the first end region (13), and wherein the first clamping arm (8) and the second clamping arm (11) can be connected by means of a first connection element (4) of the connection device (1), and wherein, between the two end regions (13, 14), the first element (2) has a first receiving section (6) and the second element (3) has a second receiving section (7). According to the invention, in order to increase the strength of the connection device (1), a reinforcement element (27) is formed in a transition region (26) formed between the clamping arm (8; 11) and the receiving section (6; 7). The invention furthermore relates to an exhaust turbocharger having a connection device (1).

Classes IPC  ?

• F16B 7/18 - Assemblages de barres ou assemblages de tubes, p. ex. de section non circulaire, y compris les assemblages élastiques utilisant des éléments filetés
• F01N 13/18 - Structure facilitant la fabrication, l'assemblage ou le démontage
• F16L 23/08 - Raccords à brides les brides étant raccordées par des organes tendus dans le plan radial raccordées par broche et écrou fileté disposés tangentiellement

Abrégé

The invention relates to a connection device for a turbocharger, having a substantially bent first element (10) and a substantially bent second element (11), wherein: the first element (10), at a first end, has a radially extending first tensioning arm (16) and the second element (11), at a second end formed opposite the first end, has a radially extending second tensioning arm (17); a third end of the first element (10) formed facing away from the first end is formed opposite a fourth end of the second element (11) formed facing away from the second end and can be moved by means of said fourth end; the first tensioning arm (16) has a first stop (24) formed facing away from the third end and the second tensioning arm (17) has a second stop (29) opposite the first stop (24); the first tensioning arm (16) and the second tensioning arm (17) can be connected with the aid of a first connection element (12) of the connection device (9); and the second end and the fourth end can be movably connected together with the aid of a second connection element (13). According to the invention in order to reduce tensions in the two tensioning arms (16, 17), a transition (30; 31) is resiliently formed between the respective tensioning arm (16; 17) and a receiving portion (25; 27) of the corresponding element (10; 11), which receiving portion is arranged extending between the tensioning arm (16; 17) and the third end or fourth end, wherein: the first element (10), at its first end portion (38) formed facing away from the first tensioning arm (16), is movably connected with the aid of the second connection element (13) to the second element (11) at its second end portion (39) formed facing away from the second tensioning arm (17); at least the first element (10) and/or the second element (11) at least in the region of the second connection element (13) has/have a profiled design; and the first element (10) and/or the second element (11) in the region of the second connection element (13) is/are designed so as to be capable of being enveloped by same. The invention also relates to a turbocharger (1) having a connection device (9).

Classes IPC  ?

• F01N 13/18 - Structure facilitant la fabrication, l'assemblage ou le démontage
• F16B 7/18 - Assemblages de barres ou assemblages de tubes, p. ex. de section non circulaire, y compris les assemblages élastiques utilisant des éléments filetés
• F16L 23/08 - Raccords à brides les brides étant raccordées par des organes tendus dans le plan radial raccordées par broche et écrou fileté disposés tangentiellement

Abrégé

The invention relates to a control device for a turbocharger, comprising an exhaust gas conducting section through which fluid can flow and which includes a bypass duct for bypassing a turbine wheel that is rotatably arranged in the exhaust gas conducting section, and comprising an adjusting arm (3) for accommodating a valve element (2) provided for opening or blocking a flow cross-section of the bypass duct; the adjusting arm (3) is movably accommodated in the exhaust gas conducting section; furthermore, a flexible element (14) is provided at least for securing the valve element (2) in place on the adjusting arm (3). According to the invention, the flexible element (14) is designed to be retained radially and axially by the valve element (2).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement

Abrégé

The invention relates to a control device for a turbocharger, comprising an exhaust gas conducting section through which fluid can flow and which includes a bypass duct for bypassing a turbine wheel that is rotatably arranged in the exhaust gas conducting section, and comprising an adjusting arm (3) for accommodating a valve element (2) provided for opening or blocking a flow cross-section of the bypass duct; the adjusting arm (3) is movably accommodated in the exhaust gas conducting section; furthermore, a flexible element (14) is provided at least for securing the valve element (2) in place on the adjusting arm (3). According to the invention, the flexible element (14) is designed so as to be radially slidable in order to reduce adjustment forces.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
• F16C 27/02 - Paliers à contact lisse
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to an exhaust-gas-conducting section for a turbocharger, comprising a control device (9) having a cover element (8) for opening and closing a bypass duct (7) of the exhaust-gas-conducting section (1), the bypass duct (7) being provided in the exhaust-gas-conducting section (1) through which fluid can pass, in order to bypass a turbine wheel of the exhaust-gas-conducting section (1), said turbine wheel being mounted rotatably in the exhaust-gas-conducting section (1) in a wheel chamber of the exhaust-gas-conducting section (1). A flow-guiding element (10) is provided, and an outlet duct (5) of the exhaust-gas-conducting section (1) is formed downstream of the wheel chamber (6), with the bypass duct (7) opening into said outlet duct downstream of the turbine wheel. According to the invention, the flow-guiding element (10) is provided to generate flow vortices in the outlet duct (5) downstream of the turbine wheel and downstream of the cover element (8) in the exhaust-gas-conducting section (1).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01N 3/28 - Structure des réacteurs catalytiques
• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air

Abrégé

The invention relates to an exhaust gas turbocharger, comprising a permeable exhaust gas guide section, a permeable fresh air guide section, and a bearing section (1) arranged between the exhaust gas guide section and the fresh air guide section, and comprising a rotor assembly (2) having a turbine wheel (5) which is rotatably accommodated in the exhaust gas guide section, a compressor wheel (4) which is rotatably accommodated in the fresh air guide section, and a shaft (6) which is designed to rotationally fix the compressor wheel (4) to the turbine wheel (5), wherein the shaft (6) is rotatably mounted in the bearing section (1), and wherein a lubricant supply system (8) having an inlet channel (9) and an outlet channel (10) is formed in the bearing section (1), via which lubricant can be guided to bearing elements (7) of the bearing of the shaft (6), and wherein a lubricant baffle element (14) is designed. According to the invention, the lubricant baffle element (14) has deflector elements (19, 20) for diverting a rotating lubricant flow portion.

Classes IPC  ?

• F01D 25/18 - Systèmes de lubrification

Abrégé

The invention relates to a mounting portion for an exhaust gas turbocharger, comprising a receiving opening (4) for receiving a shaft of a rotor assembly of said exhaust gas turbocharger (2), the mounting portion (1) being designed to position mounting elements for mounting the shaft, and a lubricant circuit being provided for the purpose of supplying lubricant to the mounting elements, wherein lubricant channels are designed in the mounting portion (1) and, in order to reduce a component temperature of said mounting portion (1), a cooling jacket (9) is provided through which coolant can flow. According to the invention, the cooling jacket (9) comprises a coolant channel (10), an inlet channel (11) and an outlet channel (12), wherein the inlet channel (11) opens at a first opening point (17) into the coolant channel (10), and the outlet channel (12) is fluidically connected to the coolant channel (10) at a second opening point (18), wherein a rib (15; 16) is provided in said coolant channel (10).

Classes IPC  ?

• F01D 25/14 - Carcasses d'enveloppe modifiées à cet effet
• F02B 39/00 - Parties constitutives, détails ou accessoires non couverts par les groupes , et relatifs aux pompes d'alimentation ou de balayage entraînées

Abrégé

The invention relates to a rotor blade (1) for an impeller (53) of a fluid energy machine (50), particularly a turbocharger compressor stage, said impeller being rotatably mounted about an axis of rotation (6), the rotor blade comprising: a surface (7) of an intake side, which is designed to intake fluid from an inflow region (9) when the rotor blade is rotating; a surface of a pressure side, which is designed to compress the fluid when the rotor blade is rotating; an onflow edge (19), from where the fluid flows onto the rotor blade (1); an outflow edge (23) located downstream of the onflow edge (19), where the fluid flows off the rotor blade (1); and a radially outer lateral edge (25), wherein the onflow edge (19), the radially outer lateral edge (25) and the outflow edge (23) connect the surface (7) of the intake side to the surface of the pressure side. According to the invention, the outflow edge (23) has a first, in particular constant inclination (α1) with respect to the axial direction (5) in a first region (27), which is adjacent to one end (29) of the radially outer lateral edge (25), and has a second, in particular variable inclination (α2) with respect to the axial direction (5) in a second region (35), which is adjacent to the first region (27) and downstream thereof, the second inclination having the same preceding sign as and being larger than the first inclination (α1).

Classes IPC  ?

• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F04D 29/30 - Aubes

Abrégé

The invention relates to an adjusting device (100, 200, 300, 400) having: a valve shaft (101; 201; 301; 401) with a valve head (103; 203; 303; 402) at a first end, said valve head being designed to open and close the flow opening, and a convex valve shaft coupling section (105; 205; 305; 405) at a second end, said coupling section being spherical at least in one region; an actuator rod (107; 207; 307; 407) which can be connected to an actuator at a first end and which has a convex actuator decoupling section (109; 209; 309; 409) at a second end, said decoupling section being spherical in at least one region; and a joint device (111; 211; 311; 422) which can connect the valve shaft coupling section and the actuator decoupling section and which has a first part (113; 213; 313; 413) and a second part (115; 215; 315; 415) that can be connected to the first part, wherein the first part and the second part have two respective depressions (117, 119, 121, 123; 217, 219, 221, 223; 317, 319, 321, 323; 417, 419, 421, 423) which are spherically shaped in at least one region, said depressions complementing at least one part of the valve shaft coupling section (105; 205; 305; 405) and/or the actuator decoupling section (109; 209; 309; 409), and the first part and/or the second part has a stop region (125, 127; 225; 227; 325; 327; 425; 427) which adjoins at least one of the depressions in order to allow a tilt or an offset of the actuator rod (107; 207; 307; 407) relative to the valve shaft (101; 201; 301; 401) and/or a change in length of the actuator rod and/or the valve shaft and limit same to a specified tolerance range.

Classes IPC  ?

• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air
• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage
• F01D 17/10 - Organes de commande terminaux
• F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage

Produits et services

Turbocompressors; Turbocompressors; Superchargers; Turbochargers for vehicles; Superchargers for electrically assisted vehicles; Superchargers for automobiles; Superchargers for electrically assisted automobiles; Superchargers for electrically assisted land vehicles; Turbochargers for land vehicles; Turbochargers for internal combustion engines; Superchargers for electrically assisted internal combustion engines; Turbochargers for machines; Superchargers for electrically assisted machines; Turbochargers coupled to an electric drive; parts and fittings for turbochargers. Apparatus and instruments for transforming electricity; Parts and components of apparatus and instruments for converting energy. Parts and fittings for turbochargers for vehicle engines.

Abrégé

The invention relates to an adjustable guide apparatus for an exhaust gas guide section of an exhaust gas turbocharger, comprising a first insert part (5) and a second insert part (8) arranged opposite the first insert part (5), wherein a supply flow channel (4) is formed between a first wall (9) of the first insert part (5) and a second wall (10) of the second insert part (8) arranged opposite this first wall (9), and wherein a plurality of guide vanes (6) are rotatably positioned in this supply flow channel (4) for deflecting exhaust gas flowing through the exhaust gas guide section (2), and comprising a spacer element (11) which is positioned for securing a functional distance (A) between the first wall (9) and the second wall (10), wherein the spacer element (11) has a longitudinal axis (12) which is positioned at a radial distance (R1) to a longitudinal axis (16) of the guide apparatus (1) and with a radial spacing (DR1) to a rotational axis (7) of the guide vane (6), wherein, in order to bring about a functional stability, an additional element (13) is arranged at a distance to the spacer element (11) between the first insert part (5) and the second insert part (8). The invention further relates to an exhaust gas guide section (2) for an exhaust gas turbocharger (3).

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F01D 25/00 - Parties constitutives, détails ou accessoires non couverts dans les autres groupes ou d'un intérêt non traité dans ces groupes

Abrégé

The invention relates to a turbocharger having an exhaust-gas-conducting section through which flow can pass, an air-conducting section through which flow can pass, and a bearing section (2) between the exhaust-gas-conducting section and the air-conducting section. The bearing section (2) is designed for the rotatable support of a rotor assembly (3) of the turbocharger (1). The rotor assembly (3) has a turbine (5) arranged rotatably in the exhaust-gas-conducting section and a compressor wheel (4) arranged rotatably in the air-conducting section, said turbine and compressor wheel being connected for conjoint rotation by means of a shaft (6) mounted rotatably in the bearing section (2). The bearing section (2) is designed to supply lubricant to bearing elements (7) of the shaft (6). A sealing plate (15) is formed in the bearing section (2) to seal off the air-conducting section in particular against the ingress of lubricant from the bearing section (2) into the air-conducting section in the region of a wheel chamber of the air-conducting section. According to the invention, the sealing plate (15) is integrally joined to the bearing section (2).

Classes IPC  ?

• F01D 11/00 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages

Abrégé

The invention relates to an exhaust gas guide section for an exhaust gas turbocharger, wherein the exhaust gas guide section (1) is designed for through flow, and wherein a wheel chamber (8) is designed for the rotatable holding of a blade turbine wheel (5) having a plurality of impeller vanes (15), having a first spiral channel (9) and a second spiral channel (10), wherein the first spiral channel (9) and the second spiral channel (10) are formed in sections for an overflow into the wheel chamber (8), and wherein the first spiral channel (9) has a first spiral tongue (13) and the second spiral channel (10) has a second spiral tongue (14), wherein the spiral tongues (13, 14) are arranged serially in the circumferential direction. According to the invention, in order to reduce an overflow of exhaust gas from the first spiral channel (9) into the second spiral channel (10) and vice versa, a separating element (18) projecting into the wheel chamber (8) is respectively arranged on the first spiral tongue (13) and on the second spiral tongue (14). The invention further relates to an exhaust gas guide section (1) for an exhaust gas turbocharger (2).

Classes IPC  ?

• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage

Abrégé

The invention relates to an exhaust-gas guide section for a turbocharger, comprising an inlet channel (3), through which flow can pass, and an outlet channel (9), through which flow can pass, wherein the inlet channel (3) is connected to the outlet channel (9) for flow therethrough by means of a wheel chamber (8), which is arranged between the inlet chamber (3) and the outlet chamber (9), and wherein a turbine wheel (7) having an axis of rotation (14) is rotatably accommodated in the wheel chamber (8), wherein the turbine wheel (7) can be acted on by a fluid flowing through the exhaust-gas guide section (1), and wherein a bypass channel (10) is formed in the exhaust-gas guide section (1), said bypass channel branching off from the inlet channel (3) upstream of the turbine wheel (7), which bypass channel leads into the outlet channel (9) downstream of the wheel chamber (8), and wherein the bypass channel (10) has an outlet opening (16), which is designed for introducing the diverted exhaust gas into the outlet channel (9). According to the invention, the outlet opening (16) is arranged within a cross-sectional area (Q) of the outlet channel (9). The invention further relates to an exhaust system for an internal combustion engine and to a method for operating a turbocharger.

Classes IPC  ?

• F01N 3/28 - Structure des réacteurs catalytiques
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux
• B01F 5/04 - Mélangeurs à injecteurs
• B01F 3/02 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz avec des gaz ou des vapeurs
• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations

Abrégé

The invention relates to a turbocharger for an internal combustion engine, comprising an air-guiding section (7) through which air can flow, an exhaust gas-guiding section (5) through which exhaust gas can flow, and a bearing section (8) in which a rotor assembly is mounted in a rotatable manner about its rotational axis. A compressor wheel of the rotor assembly is received in the air-guiding section (7) in order to suction and compress fresh air in particular, and a turbine wheel of the rotor assembly is rotatably received in the exhaust gas-guiding section (5) in order to drive the compressor wheel. A regulating device (9) is provided for regulating an exhaust gas mass flow of the internal combustion engine (2) flowing through the turbine wheel, and the regulating device (9) can be adjusted by means of an actuator (10) which is received on the air-guiding section (7). According to the invention, a support element (11) is designed to stabilize the actuator (10) during the operation of the turbocharger (1), wherein the support element (11) is connected to the air-guiding section (7) at one end and to an additional component (13; 14) at the other end, said additional component having a thermal coefficient which is adapted to the air-guiding section (7).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 39/16 - Autres mesures de sécurité pour les pompes ou autres commandes de celles-ci
• F02B 67/10 - Moteurs caractérisés par l'agencement d'appareils auxiliaires non prévu ailleurs, p. ex. un appareil ayant des fonctions différentesEntraînement non prévu ailleurs de ces appareils auxiliaires par les moteurs d'appareils d'alimentation ou de balayage

Abrégé

The invention relates to a bearing device for an exhaust gas turbocharger, having a first radial bearing (13) and a second radial bearing (14), wherein the radial bearings (13, 14) are configured for radially mounting a shaft (8) of the exhaust gas turbocharger (2) with a rotational axis (11), and wherein a first outflow gap (18) and a second outflow gap (23), respectively, are configured between the first radial bearing (13) and a first supporting wall (17) of the exhaust gas turbocharger (2) for axially supporting the first radial bearing (13), which first supporting wall (17) extends radially and is configured so as to face a turbine wheel (7) of the exhaust gas turbocharger (2), and between the second radial bearing (14) and a second supporting wall (22) of the exhaust gas turbocharger (2) for axially supporting the second radial bearing (14), which second supporting wall (22) extends radially and is configured so as to face a compressor impeller (6) of the exhaust gas turbocharger (2). According to the invention, for axial and simultaneous radial bearing and/or for supporting the radial bearing, the first outflow gap (18) and/or the second outflow gap (23) are/is configured so as to be inclined or curved with respect to the rotational axis (11) at least partially with the configuration of an angle (α) which is greater than or less than 90°.

Classes IPC  ?

• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
• F16C 17/10 - Paliers à contact lisse pour mouvement de rotation exclusivement à la fois pour charges radiales et axiales
• F16C 17/18 - Paliers à contact lisse pour mouvement de rotation exclusivement caractérisés par des particularités sans rapport avec la direction de la charge avec coussinets ou bagues flottants, tournant à vitesse réduite
• F16C 33/10 - Structures relatives à la lubrification

Abrégé

The invention relates to an impeller for a turbocharger. The impeller (1) is mounted in a housing of the turbocharger (3) in a rotatable manner about a rotational axis (4) and has an impeller hub (6) with an impeller back (7) and an empeller front facing away from the impeller back (7), and a plurality of impeller blades (5) are formed on the impeller hub (6) so as to extend between the impeller back (7) and the impeller front. A balancing mark (12) is arranged in a blade channel (10) formed between a first blade (8) of the plurality of impeller blades (5) and a second blade (9) of the plurality of impeller blades (5), said second blade being arranged adjacently to the first blade (8). According to the invention, the width (B) of the balancing mark (12) is smaller than the length (L) of the balancing mark (12). The invention additionally relates to a turbocharger comprising such an impeller and to a method for balancing a rotor assembly for such a turbocharger.

Classes IPC  ?

• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
• G01M 1/34 - Compensation du balourd par soustraction de matière de l'objet à tester, p. ex. de la surface de roulement de pneus

Abrégé

The invention relates to a rotor assembly for an exhaust gas turbocharger, comprising a turbine wheel, a compressor wheel (5) connected to the turbine wheel for conjoint rotation by means of a shaft (3), and an intermediate component (8) arranged between the compressor wheel (5) and the turbine wheel on the shaft (3). According to the invention, in order to increase the permissible operating torque of the exhaust gas turbocharger (2), at least one of the surfaces (10; 11) of the intermediate component (8) and/or a third surface (12) of the compressor wheel (5) and/or a fourth surface (13) of the shaft (3) has elevations that are harder than a base of the surface (12; 13; 10; 11) arranged opposite.

Classes IPC  ?

• F01D 5/02 - Organes de support des aubes, p. ex. rotors
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to a regulating device for a turbocharger. The regulating device (8) is received in a turbocharger (2) exhaust gas conducting section (1) through which exhaust gas can flow, and a fluid flow to a turbine wheel which is rotatably received in the exhaust gas conducting section (1) can be conditioned using the regulating device (8). A flow channel (10; 31) which is formed in the exhaust gas conducting section (1) is to be opened and closed using a cover element (9) of the regulating device (8), and the cover element (9) is arranged on a regulating device (8) pivot arm (38) which can be pivoted about a rotational axis (34). According to the invention, the cover element (9) is designed to open and close a flow channel designed as a bypass channel (31) for bypassing the turbine wheel and/or for opening and closing a flow channel, which is designed as a through-flow opening (10), between a first spiral channel (4) and a second spiral channel (5) of the exhaust gas conducting section (1).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux
• F16K 1/36 - Corps de soupapes

Abrégé

The invention relates to a retaining element for a control device of an exhaust gas turbocharger, comprising a first element section (11) having a first passage opening (13) and a second element section (12) having a second passage opening, wherein the first passage opening (13) is used to connect the retaining element (1) to the control device (2) and the second passage opening (14) is used to connect the holding element (1) to a movement device (6). According to the invention, the retaining element (1) is designed for frictional and interlocking connection to a control rod (4) of the control device (2).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16B 5/00 - Jonction de feuilles ou de plaques soit entre elles soit à des bandes ou barres parallèles à elles
• F16B 7/00 - Assemblages de barres ou assemblages de tubes, p. ex. de section non circulaire, y compris les assemblages élastiques

Abrégé

The invention relates to a control device for a turbocharger, comprising an exhaust gas conducting section through which fluid can flow and which includes a bypass duct for bypassing a turbine wheel that is rotatably arranged in the exhaust gas conducting section, and comprising an adjusting arm (3) for accommodating a valve element (2) provided for opening or blocking a flow cross-section of the bypass duct; the adjusting arm (3) is movably accommodated in the exhaust gas conducting section; furthermore, a flexible element (14) is provided at least for securing the valve element (2) in place on the adjusting arm (3). According to the invention, the flexible element (14) is designed so as to be radially slidable in order to reduce adjustment forces.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux
• F01D 17/12 - Organes de commande terminaux disposés sur des parties du stator
• F01D 11/00 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages

Abrégé

The invention relates to a control device for a turbocharger, comprising an exhaust gas conducting section through which fluid can flow and which includes a bypass duct for bypassing a turbine wheel that is rotatably arranged in the exhaust gas conducting section, and comprising an adjusting arm (3) for accommodating a valve element (2) provided for opening or blocking a flow cross-section of the bypass duct; the adjusting arm (3) is movably accommodated in the exhaust gas conducting section; furthermore, a flexible element (14) is provided at least for securing the valve element (2) in place on the adjusting arm (3). According to the invention, the flexible element (14) is designed to be retained radially and axially by the valve element (2).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux
• F01D 17/12 - Organes de commande terminaux disposés sur des parties du stator
• F01D 11/00 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages

Abrégé

The invention relates to an exhaust gas guide section for an exhaust gas turbocharger comprising a control device (1) with a cover element (9) for opening and closing a bypass channel (31) of the exhaust gas guide section (1), wherein the bypass channel (31) is provided in the exhaust gas guide section (1) that can be flowed through to bypass a turbine wheel of the exhaust gas guide section (1) which is rotatably arranged in the exhaust gas guide section (1) in a wheel chamber of the exhaust gas guide section (1), and wherein the bypass channel (31) has a second flow cross section (33). According to the invention, the second flow cross section (33) is decreasingly releasable with the aid of the cover element (9), at least starting from a closed position into an intermediate position.

Classes IPC  ?

• F01D 17/10 - Organes de commande terminaux
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement

Abrégé

The invention relates to an exhaust gas guide section for an exhaust gas turbocharger, comprising a first spiral channel (4) and a second spiral channel (5) for incident flow of a turbine wheel rotatably accommodated in the exhaust gas guide section that can be flowed through, wherein a through-flow opening (10) is provided between the first spiral channel (4) and the second spiral channel (5), which is configured to induce an overflow of exhaust gas from the first spiral channel (4) into the second spiral channel (5) and vice versa, and wherein the through-flow opening (10) has a moveable cover element (9’) for opening or closing the through-flow opening (10). According to the invention, the cover element (9’) is configured to decreasingly release a first flow cross section (11) of the through-flow opening (10).

Classes IPC  ?

• F01D 17/10 - Organes de commande terminaux
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement

Abrégé

The invention relates to a controller for an exhaust gas turbocharger comprising an exhaust gas pipe section (2) through which a flow can pass, a bearing section, and a flow-through air guiding section (13), wherein the exhaust gas pipe section (2) is connected by means of the bearing section to the air guiding section (13), and wherein a turbine wheel of the exhaust gas turbocharger (1) is received rotatably in the exhaust gas pipe section (2). The turbine wheel is connected non-rotatably to a compressor wheel, which is received rotatably in the air guiding section (13), by means of a rotor shaft which is received rotatably in the bearing section. In order to bypass the turbine wheel a bypass channel (8) is formed in the exhaust gas pipe section (2) and can be opened or closed by means of a cover element (11) of the controller (7), and the controller (7) has a shaft (16) rotatably mounted in the exhaust gas pipe section (2). The shaft (16) is connected to the cover element (11) and, at the end (19) of the shaft facing away from the cover element (11), is connected to a connecting element (15) in order to move the cover element (11). According to the invention, in order to reduce a flow through the controller (7) in the region of the shaft (16), the controller (7) is designed to reduce the pressure, starting from the bypass channel (8), in the direction of the connecting element (15).

Classes IPC  ?

• F01D 17/10 - Organes de commande terminaux
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to a bearing device for an exhaust gas turbocharger, having a first radial bearing (8) and a second radial bearing (9), wherein the first radial bearing (8) and the second radial bearing (9) are designed for the radial mounting of a shaft of the exhaust gas turbocharger, and wherein a spacer (12) is arranged between the first radial bearing (8) and the second radial bearing (9). The first radial bearing (8) and the second radial bearing (9) are connected to the spacer (12), wherein at least the two radial bearings (8, 9) are produced separately prior to a joining process of the three components (8, 9, 12).

Classes IPC  ?

• F16C 17/18 - Paliers à contact lisse pour mouvement de rotation exclusivement caractérisés par des particularités sans rapport avec la direction de la charge avec coussinets ou bagues flottants, tournant à vitesse réduite
• F16C 27/02 - Paliers à contact lisse
• F16C 43/02 - Assemblage des éléments de paliers à contact glissant
• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement

Abrégé

The invention relates to a controller for an exhaust gas conductive portion, through which a flow can pass, of a turbocharger. The controller (13) is designed to open and close a bypass channel (11) in the exhaust gas conductive portion (1) in order to bypass an exhaust gas conductive portion (1) turbine wheel (9) rotatably arranged in the exhaust gas conductive portion (1) in a wheel chamber (8) of the exhaust gas conductive portion (1) and to combine or separate a first flow (5) which is provided in the exhaust gas conductive portion (1) and a second flow (6). The controller comprises a movement device (18) and a cover element (16), wherein the cover element (16) is designed to open or close a first inlet opening (12) of the bypass channel (11), a second inlet opening (14) of the first flow (5), and a third inlet opening (15) of the second flow (6), and the movement device (18) is provided for initiating the movement of the cover element (16). According to the invention, the cover element (16) is designed to be able to carry out a translational movement in order to combine or separate the flows (5, 6) and in order to open or close the bypass channel (11), said translational movement being carried out in the direction of a longitudinal axis (17) of the cover element (16).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs
• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage
• F01D 17/10 - Organes de commande terminaux
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to a regulating device for an exhaust-gas-conducting section of an exhaust-gas turbocharger, wherein the regulating device (19) is designed for guiding a flow of a fluid into a bypass duct (22), which is formed in the exhaust-gas-conducting section (9) through which flow can pass, for the purposes of bypassing a turbine wheel (14) of the exhaust-gas-conducting section (9), which turbine wheel is arranged rotatably in the exhaust-gas-conducting section (9) in a wheel chamber of the exhaust-gas-conducting section (9), and for guiding the flow of the fluid into a first channel (17) of the exhaust-gas-conducting section (9) and into a second channel (18) of the exhaust-gas-conducting section (9), and wherein the regulating device (19) has a shut-off element (24) and a valve housing (25) which accommodates the shut-off element (24), with the aid of which shut-off element communication openings (29, 30, 31) of the valve housing (25) can be entirely or at least partially shut off or opened up for flow guidance purposes, and wherein the shut-off element (24) in the valve housing (25) is designed to be capable of performing a translational movement along a longitudinal axis (26) of the valve housing (25).

Classes IPC  ?

• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage
• F01D 17/10 - Organes de commande terminaux
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement

Abrégé

The invention relates to a bearing segment for an exhaust gas turbocharger (1), comprising a bearing device (11) having a bearing bush (12), wherein a shaft (5) can be rotatably accommodated in an interior (21) of the bearing bush (12), and wherein a fastening element (22) for fastening the bearing bush (12) is formed in the bearing segment (4). According to the invention, the fastening element (22) is designed to establish a snapping connection between the fastening element (22) and the bearing bush (12).

Classes IPC  ?

• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators

Abrégé

The invention relates to a compressor, having an air-guiding section (3) through which flow can pass and which has an inlet duct (7), a wheel chamber (5) which is formed downstream of the inlet duct (7) and which serves for accommodating a compressor wheel (4), a spiral duct (6) which is formed downstream of the wheel chamber (5), wherein, in a transition region which connects the inlet duct (7) to the wheel chamber (5), flow gaps (9) are formed in the air-guiding section (3), and wherein the transition region extends both in the direction of the inlet duct (7) and in the direction of the wheel chamber (5) over an inlet edge of the compressor wheel (4), and wherein the flow gaps (9) are designed in each case so as to extend over an axial first length (L1) and over a radial length (RL) with a cross section (Q). According to the invention, the cross section (Q) varies over the axial first length (L1).

Classes IPC  ?

• F04D 27/02 - Contrôle de l'emballement
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/68 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage en agissant sur les couches limites

Abrégé

The invention relates to a turbocharger which comprises a first housing section (2) of the turbocharger (1) and a second housing section (3) of the turbocharger (1), the first housing section (2) having a radially outward facing first collar (9) opposite the second housing section (3), and the second housing section (3) having a radially outward facing second collar (10) opposite the first collar (9), and the first housing section (2) and the second housing section (3) extend both radially to the longitudinal axis (11) and axially along the longitudinal axis (11). In order to interconnect the two housing sections (2, 3) a connecting device (12) is provided. Said connecting device (12) comprises a securing element (30) for securing the position.

Classes IPC  ?

• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations
• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The base (51) of a support ring (49) has, along the circumferential direction of the support ring (49), connection areas (A1) of which there are same quantity as that of linking pins (59) and that encircle pin holes (85) for one end of the linking pins (59) to be inserted, and notches (87, 89, 91) are formed at the periphery of each connection area (A1) in the support ring (49) in a manner so that it is possible to permit the deformation of the central section (53) of the support ring (49) with respect to each connection area (A1).

Classes IPC  ?

• F02B 37/24 - Commande des pompes en utilisant des pompes ou des turbines à aubes distributrices réglables
• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F01D 17/24 - Dispositifs utilisant des éléments sensibles ou des organes de commande terminaux ou les organes de liaison entre les deux, p. ex. commande assistée l'énergie de fonctionnement ou de puissance assistée étant essentiellement non mécanique électrique
• F01D 17/26 - Dispositifs utilisant des éléments sensibles ou des organes de commande terminaux ou les organes de liaison entre les deux, p. ex. commande assistée l'énergie de fonctionnement ou de puissance assistée étant essentiellement non mécanique à fluide, p. ex. hydraulique

Abrégé

The invention relates to a bearing device for a turbocharger, having a first radial bearing (8) and a second radial bearing (9). The first radial bearing (8) and the second radial bearing (9) are designed to radially support a shaft (6) of the turbocharger (1), and the first radial bearing (8) has a first bearing axis (10) and the second radial bearing (9) has a second bearing axis (11), said first bearing axis (10) and second bearing axis (11) being coaxial. According to the invention, a third radial bearing (13) with a third bearing axis (14) is provided, said third bearing axis (14) being positioned at a distance (E) to the first bearing axis (10) and to the second bearing axis (11) in a parallel manner.

Classes IPC  ?

• F01D 25/04 - Systèmes antivibratoires
• F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
• F02C 7/06 - Aménagement des paliersLubrification
• F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement

Abrégé

In an adjustable guide vane mechanism for a turbine, comprising a bearing ring with a plurality of guide vanes rotatably supported on the bearing ring by means of guide vane shafts provided with actuating levers which are engaged by a rotatable ring, the rotatable ring comprises axially spaced radial inner and outer sections with a radially inclined center section joining the spaced radial inner and outer sections, the radially inner section being rotatably supported and the radially outer section extending around the actuating levers and having recesses in which the actuating levers are received for pivoting the actuating levers and the guide vanes upon rotation of the rotatable ring.

Classes IPC  ?

• F02B 37/24 - Commande des pompes en utilisant des pompes ou des turbines à aubes distributrices réglables
• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F01D 9/04 - InjecteursLogement des injecteursAubes de statorTuyères de guidage formant une couronne ou un secteur

Abrégé

In an impeller for a fluid energy machine with a hub and a plurality of rotor blades which are mounted on the hub and around which a medium may flow through the fluid energy machine and which form a blade duct between two neighboring rotor blades with a blade duct length which extends in the axial direction of the impeller, wherein each rotor blade is connected to the hub via a first transition region with a first curvature and via a second transition region with a second curvature and with a straight conical blade duct bottom of the blade duct formed between the first transition region and the second transition region.

Classes IPC  ?

• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F01D 5/14 - Forme ou structure
• F04D 17/00 - Pompes à flux radial spécialement adaptées aux fluides compressibles, p. ex. pompes centrifugesPompes hélicocentrifuges spécialement adaptées aux fluides compressibles

Abrégé

In an adjusting device for an exhaust gas turbocharger with a first adjusting member and a second adjusting member for operating a valve element for varying the flow cross-section of a bypass duct of a flow-through exhaust gas guide portion of a turbine of an exhaust gas turbocharger, the first adjusting member and the second adjusting member are connected so as to be pivotable relative to one another by a pin-shaped connecting element with a locking element establishing a pivot joint of the first adjusting member and the second adjusting member with a predetermined axial engagement force.

Classes IPC  ?

• F01D 17/10 - Organes de commande terminaux
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16C 11/02 - TourillonsManetons

Abrégé

The invention relates to an exhaust gas turbocharger, having a first housing section (2) of the exhaust gas turbocharger (1) and a second housing section (3) of the exhaust gas turbocharger (1), wherein the first housing section (2) and the second housing section (3) are positioned so as to adjoin one another on at least one first flange surface (7) of the first housing section (2) and on a second flange surface (8) of the second housing section (3), and wherein the exhaust gas turbocharger (1) has a longitudinal axis (11), and the first housing section (2) and the second housing section (3) are configured so as to extend both radially about the longitudinal axis (11) and axially along the longitudinal axis (11). According to the invention, a seal is configured between the first flange surface (7) and the second flange surface (8) in the form of a radially or semi-radially acting seal (18), wherein the radially or semi-radially acting seal (18) is configured directly with the aid of the first flange surface (7) and the second flange surface (8), and wherein, if the first housing section (2) has a greater thermal expansion than the second housing section (3), the second flange surface (8) is configured so as to be capable of enveloping the first flange surface (7) at least in regions or, if the second housing section (3) has a greater thermal expansion than the first housing section (2), the first flange surface (7) is configured so as to be capable of enveloping the second flange surface (8) at least in regions.

Classes IPC  ?

• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to an exhaust gas turbocharger, having a first housing section (2) of the exhaust gas turbocharger (1) and a second housing section (3) of the exhaust gas turbocharger (1), wherein the first housing section (2) and the second housing section (3) are positioned so as to adjoin one another on at least one first flange surface (7) of the first housing section (2) and on a second flange surface (8) of the second housing section (3), and wherein the exhaust gas turbocharger (1) has a longitudinal axis (11), and the first housing section (2) and the second housing section (3) are configured so as to extend both radially about the longitudinal axis (11) and axially along the longitudinal axis (11). According to the invention, the first flange surface (7) has a first contact edge (9) and/or the second flange surface (8) has a second contact edge (14), by means of which an annularly configured contact (10) can be produced between the first flange surface (7) and the second flange surface (8) for sealing purposes.

Classes IPC  ?

• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation
• F01D 25/24 - Carcasses d'enveloppeÉléments de la carcasse, p. ex. diaphragmes, fixations

Abrégé

The invention relates to a heat shield for a turbocharger, with the aid of which at least one exhaust-gas-conducting section (2) of the turbocharger (1), through which section flow can pass, and a further section (3) of the turbocharger (1) can be shielded in a thermally insulating manner, at least in some sections, the exhaust-gas-conducting section (2) having at least one first spiral duct (8) through which flow can pass and one second spiral duct (9) through which flow can pass. According to the invention, the heat shield (10) is designed so as to separate the first spiral duct (8) and the second spiral duct (9) at least in some sections with the aid of at least one partition (16; 17), the heat shield (10) being formed from sheet metal.

Classes IPC  ?

• F01D 9/02 - InjecteursLogement des injecteursAubes de statorTuyères de guidage
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs

Abrégé

A method for mounting and setting an actuator of an exhaust gas turbocharger and a suitable electric actuating device are provided. The actuating device has an axially movable actuating rod which is connected to a coupling element which for its part is connected via a pivot pin to an actuation section of a bypass valve, the actuation section being configured as a lever arm. In order to set the desired closed position of the bypass valve during a predefined actuation of the actuating device, the coupling element is first connected to the actuating rod while still being displaceable. Before the fixing, the position of the actuating device which corresponds to the closed position is set by application of the corresponding voltage to the electric actuating device. Subsequently, a prestressing force is applied to the coupling element coaxially with respect to the actuating rod via a pneumatic actuator.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux

Abrégé

The invention relates to an adjusting device for an exhaust gas turbocharger having an exhaust-gas-conducting segment (3) through which flow is possible, wherein the exhaust-gas-conducting segment (3) has a bypass channel, which is used for the bypassing of a turbine wheel arranged in the in the exhaust-gas-conducting segment (3), comprising a first adjusting element (7) and a second adjusting element (9), wherein a valve element (5) for varying a flow cross-section of the bypass channel is provided indirectly or directly on the first adjusting element (7), and wherein the first adjusting element (7) and the second adjusting element (9) are connected to one another, wherein the first adjusting element (7) is designed to be received at a first end (11) of the first adjusting element facing the second adjusting element (9) by the second adjusting element (9) at a second end (13) of the second adjusting element facing the first adjusting element (7), in such a way that the first adjusting element (7) can protrude into the second adjusting element (9), wherein an outer contour surface (15) is formed on the first end (11) and an inner contour surface (14) is formed on the second end (13), the outer contour surface and the inner contour surface being complementary to each other. According to the invention, the outer contour surface (15) and the inner contour surface (14) are designed like polygon shapes in order to establish a rotationally fixed connection between the first adjusting element (7) and the second adjusting element (9).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux

Abrégé

The invention relates to an impeller for a fluid energy machine, comprising a hub body (2) and a plurality of impeller vanes (3) around which a medium flowing through the fluid energy machine can flow, said impeller (1) having a rotational axis (5). The impeller also has a support element (6) which is largely integrated into the hub body (2). According to the invention, the support element (6) is designed to have a detachable fixing element (7) so as to be fixed during a process for producing the impeller (1).

Classes IPC  ?

• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• B22D 19/00 - Coulée dans, sur, ou autour d'objets formant partie intégrante du produit final
• B22D 19/02 - Coulée dans, sur, ou autour d'objets formant partie intégrante du produit final pour fabriquer des pièces renforcées
• B22D 25/06 - Coulée particulière caractérisée par la nature du produit par ses propriétés physiques

Abrégé

The invention relates to an exhaust-gas conducting section for a turbine, comprising a flow-through channel (3) for flow through the exhaust-gas conducting section (1), wherein the flow-through channel (3) has a wheel chamber (6), in which a turbine wheel (7) having a turbine wheel outlet diameter (D), a wheel inlet (10), and a wheel outlet (11) is rotatably accommodated, wherein the flow-through channel (3) has an outlet section (5) downstream of the wheel chamber (6) and the flow-through channel (3) has an inlet section (4) upstream of the wheel chamber (6), wherein a bypass channel (15) for bypassing the wheel chamber (6) is formed in the exhaust-gas conducting section (1), and said bypass channel (15) opens into the flow-through channel (3) downstream of the wheel chamber (6) by means of a confluence (16), wherein the confluence (16) has a flow cross-section (17). According to the invention, the confluence (16) is formed in the region of the wheel outlet (11).

Classes IPC  ?

• F01D 17/10 - Organes de commande terminaux

Abrégé

The invention relates to a control device for an exhaust-gas guide section of a turbine, through which section gas can flow, particularly for a turbine of an exhaust-gas turbocharger, wherein the control device (7) for opening and closing a bypass channel (8) is provided in the exhaust-gas guide section (1) through which gas can flow to bypass a turbine wheel of the exhaust-gas guide section (1) arranged rotatably in the exhaust-gas guide section (1) in a wheel chamber (6) of the exhaust-gas guide section (1). The control device comprises a movement device (12) and a covering element (11), wherein the covering element (11) is provided for opening or closing a flow cross-section (10) of the bypass channel (8) with the aid of a translational movement of the covering element (11) and wherein the movement device (12) is provided to initiate the movement of the covering element (11). According to the invention, the covering element (11) is designed in the shape of a hollow frustum.

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux
• F16K 1/12 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à corps de soupape profilé autour duquel le fluide s'écoule quand la soupape est ouverte

Abrégé

The invention relates to a regulating device for an exhaust-gas guiding section, through which flow can pass, of a turbine, in particular for a turbine of an exhaust-gas turbocharger, wherein the regulating device (5) is provided for opening and closing a bypass duct (6) in the exhaust-gas guiding section (1), through which flow can pass, for the purpose of bypassing a turbine wheel of the exhaust-gas guiding section (1), said turbine wheel being arranged rotatably in the exhaust-gas guding section (1) in a wheel chamber of the exhaust-gas guiding section (1), comprising a movement apparatus (30) and a cover element (9), wherein the cover element (9) is provided for opening or closing a flow cross section (8) of the bypass duct (6) by way of a rotational movement of the cover element (9). According to the invention, the cover element (9) is designed such that it can perform a rotational movement with respect to the flow cross section (8) about an axis of rotation (10) of the cover element (9) in the bypass duct (6), wherein the axis of rotation (10) is positioned so as to extend through the bypass duct (6).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux
• F16K 5/02 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface coniqueLeurs garnitures d'étanchéité
• F16K 5/04 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface cylindriqueLeurs garnitures d'étanchéité
• F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface sphériqueLeurs garnitures d'étanchéité

Abrégé

The invention relates to an exhaust gas pipe section for a turbine, in particular for a turbine of an exhaust gas turbocharger, having a controller (5) for opening and closing a bypass channel (6) in the exhaust gas pipe section through which the flow can pass in order to bypass a turbine wheel of the exhaust gas pipe section, which wheel is disposed rotatably in a wheel chamber of the exhaust gas pipe section, wherein the controller has a moving device and a cover element (9), wherein the cover element (9) is provided for opening or closing a flow cross-section (8) of the bypass channel (6) with the aid of a rotational movement of the cover element (9). According to the invention a cylindrical opening, which is designed to receive the cover element (9) rotatably in the opening (12), is disposed transversely with respect to a channel flow longitudinal direction, wherein the cover element (9) is designed to carry out a rotational movement relative to the flow cross-section (8) about an axis of rotation (10) of the cover element in the bypass channel (6), wherein the axis of rotation (10) is positioned so as to run through the bypass channel (6).

Classes IPC  ?

• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F01D 17/10 - Organes de commande terminaux
• F16K 5/04 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface cylindriqueLeurs garnitures d'étanchéité

Abrégé

The invention relates to an adjustable diffuser for an exhaust gas pipe section of a turbine, in particular for a turbine of an exhaust gas turbocharger, having a support ring which has rotatably mounted guide vanes (1) each comprising a first guide vane end (13) and a second guide vane end (14), wherein at least one guide vane (1) is designed to have a through flow channel (15) having a first opening (16) and a second opening (17), and the first opening (16) of the through flow channel (15) is formed on the first guide vane end (13). According to the invention the second opening (17) is formed on a flow surface (8) of the guide vane (1).

Classes IPC  ?

• F01D 5/14 - Forme ou structure
• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs
• F04D 29/46 - Moyens de guidage du fluide, p. ex. diffuseurs réglables
• F04D 29/56 - Moyens de guidage du fluide, p. ex. diffuseurs réglables
• F04D 29/68 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage en agissant sur les couches limites

Abrégé

The invention relates to an adjustable diffuser for a radial turbine, particularly for a radial turbine (2) of a turbocharger, and an assembly method related thereto. The diffuser has a carrier ring (10) with a plurality of guide vanes (11) rotatably mounted on the carrier ring (10), and a contour ring (12), which is arranged coaxially with and axially opposing the carrier ring (10). The guide vanes (11) are positionable rotatably between the carrier ring (10) and the contour ring (12). According to the invention, the contour ring (12) has a first annular section (17) and a second annular section (18) which are formed so as to be able to perform movements relative to one another.

Classes IPC  ?

• F01D 17/16 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage en obturant les injecteurs