Abrégé

The present disclosure relates to a mechatronic actuator consisting of a housing incorporating a shell and a three-phase electric motor formed by a stator excited by electrical coils and by a magnetized rotor, driving an output shaft by means of a gear train, the axis of the rotor, the axis of the output shaft and the axes of the intermediate toothed wheels being parallel, the stator having a radial triangular star shape, the three wound poles forming the three branches of the star, the axes of symmetry of two consecutive wound poles forming a mechanical angle of 120°, the housing also incorporating an electronic circuit, including a capacitor for filtering the electrical signal, the shell having a longitudinal axis, characterized in that the stator is positioned in the hosing in such a way that the axis of symmetry of one of the three wound poles forms an angle of between 70 and 110° with the longitudinal axis.

Classes IPC  ?

• H02K 7/11 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des embrayages dynamo-électriques
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
• F16H 1/22 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant plus de deux organes engrenés avec dispositions pour répartir le couple entre plusieurs arbres intermédiaires
• H02K 1/14 - Noyaux statoriques à pôles saillants
• F16H 57/02 - Boîtes de vitesses; Montage de la transmission à l'intérieur

Abrégé

The present disclosure relates to a gear motor formed of a housing. An electric motor includes a stator assembly and a rotor driving a reduction gear train having a plurality of intermediate stages each formed by a shaft coupled to a toothed wheel and to a toothed gear. Also, an output stage is formed by a shaft coupled to a wheel and a coupling component, the shafts of the rotor, of the intermediate stages and of the output wheel being parallel. The gear motor further includes a printed circuit transversely positioned above the stator assembly, wherein the wheel of the output stage is positioned above part of the stator assembly, the shafts of the intermediate stages are located in the zone of the housing located on the opposite side, relative to a transverse vertical plane, of the zone including the shaft of the rotor and the shaft of the output wheel.

Classes IPC  ?

• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
• H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
• H02K 1/14 - Noyaux statoriques à pôles saillants

Abrégé

Travel of a brushless rotary actuator is limited by two stops, including a wound stator and a magnetic cylindrical rotor rigidly attached to a shaft having a first end rigidly attached to a control member. A second end of the shaft is rigidly attached to a travel limiting part acting as stops, and the travel limiting part has bending, resilient beam shapes. The actuator is electrically controlled in an open-loop. A control system controls a lift value of valves of an internal combustion engine by a lever driven by such an actuator.

Classes IPC  ?

• F01L 9/22 - Systèmes de distribution à soupapes, à commande non mécanique par des moyens électriques actionnés par des moteurs rotatifs
• F01L 1/047 - Arbres à cames
• H02K 7/075 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa utilisant des manivelles ou des excentriques
• H02K 7/12 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec un mouvement auxiliaire limité de parties statoriques, rotoriques ou de noyau, p.ex. des rotors pouvant se déplacer axialement pour assurer un embrayage ou un freinage
• F01L 9/20 - Systèmes de distribution à soupapes, à commande non mécanique par des moyens électriques
• F01L 9/21 - Systèmes de distribution à soupapes, à commande non mécanique par des moyens électriques actionnés par des solénoïdes

Abrégé

A motorised fluid metering valve includes an inlet pipe, a discharge pipe and a motor moving a piston that can move linearly between a closed position in which a distal end of the piston sealingly engages with a seat of matching shape, and an open position. The valve is configured to have a flow rate that varies continuously between the closed position and the open position depending on an axial position of the piston. The inlet pipe opens in a periphery of the discharge pipe, with a constant protuberance regardless of the position of the piston, the protuberance not extending radially beyond a barycentre of the discharge pipe. Also, the motor is a rotary electric motor moving the piston in translation.

Classes IPC  ?

• F02M 26/67 - Goujons; Tiges; Ressorts; Palliers; Joints d’étanchéité; Branchements à des actionneurs
• F02M 26/54 - Actionneurs rotatifs, p.ex. moteurs pas à pas
• F02M 26/68 - Soupapes de levage, p.ex. soupapes de ventilation Éléments de fermeture; Sièges de soupape; Passages d’écoulement
• F02M 26/70 - Soupapes à clapet; Valves rotatives; Soupapes à coulisse; Soupapes souples
• F16K 3/24 - 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
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
• F16K 31/50 - Moyens mécaniques d'actionnement à tige-guide filetée

Abrégé

A motorized valve includes a body with at least one intake duct and one outlet duct, a plugging member movably mounted in the body to plug or release a passage between the intake duct and the outlet duct, and a motorized control system for controlling the movement of the plugging member. The motorized control system also includes a plug valve connecting intake and outlet ducts, a gear motor including an electric motor and a reduction gear train. The gear train includes an exit wheel rotating the plug of the valve so as to allow progressive opening of the valve, and the gear motor is formed by a casing including the electric motor and reduction gear train, the valve body being integrally formed with the casing.

Classes IPC  ?

• F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
• 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 rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
• F16K 27/06 - Structures des logements; Matériaux utilisés à cet effet des robinets ou des vannes

Abrégé

The invention relates to an electric actuator (20) comprising a casing (35) having a base (15), on which an electric motor (1) is fixed having a stator (22) with radially extending straight teeth and having a plurality of coils (23) and a rotor (24) formed by a plurality of magnets (25), said coils (23) extending in a plane parallel to the base (15) of said casing (35), said rotor (24) being extended by a pinion forming a worm gear (2) with an axis perpendicular to the orientation of said coils, said worm gear (2) meshing with a threaded rod (10) extending parallel to the base (15) of said casing (35), characterised in that said threaded rod is guided at the rear by a fixed smooth bearing (30a) or by a fixed nut (30), in that said smooth bearing (30a) or nut (30) is rigidly connected to a cover (5) of the casing (35), in that the axial end of said worm gear (2) is guided by said cover (5), and in that a printed circuit (37), to which the plurality of coils (23) is connected, is positioned between said stator (22) and said threaded rod (10).

Classes IPC  ?

• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• H02K 11/38 - Circuits de commande ou d’entraînement associés à des moteurs à changement de vitesse du type roue à vis sans fin
• H02P 3/02 - Dispositions pour l'arrêt ou le ralentissement de moteurs, génératrices électriques ou de convertisseurs dynamo-électriques - Détails
• H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
• H02K 7/08 - Association structurelle avec des paliers
• H02K 1/14 - Noyaux statoriques à pôles saillants

Abrégé

The disclosure relates to a mechatronic assembly for driving a body, which is designed to be connected to a continuous electrical power source and an electronic control unit comprising a computer for running a power-assistance algorithm supplying a pulse-width modulation input signal having discrete states and a cyclic ratio encoding the steering and torque/speed information.

Classes IPC  ?

• H02P 23/14 - Estimation ou adaptation des paramètres des moteurs, p.ex. constante de temps du rotor, flux, vitesse, courant ou tension
• H02P 25/03 - Moteurs synchrones avec excitation sans balai
• H03K 3/037 - Circuits bistables

Abrégé

The present invention concerns a brushless rotary actuator with travel limited by two stops, comprising a wound stator (14, 15) and a magnetic cylindrical rotor (21) rigidly attached to a shaft (7) having a first end rigidly attached to a control member (9), characterised in that the second end of said shaft is rigidly attached to a travel limiting part (23) acting as stops, in that said travel limiting part (23) has bending, resilient beam shapes (50, 51, 52, 53), and in that the actuator is electrically controlled in an open-loop. The invention also concerns a control system for controlling the lift value of the valves of an internal combustion engine by a lever driven by such an actuator.

Classes IPC  ?

• H02K 26/00 - Machines adaptées pour le fonctionnement en moteur-couple, c. à d. pour exercer un couple quand elles sont arrêtées

Abrégé

The present invention relates to a gear motor formed of a housing, comprising an electric motor comprising a stator assembly (3) and a rotor (1) driving a reduction gear train having a plurality of intermediate stages (100, 200, 300) each formed by a shaft (101, 201, 301) coupled to a toothed wheel (102, 202, 302) and to a toothed gear (103, 203, 303), and an output stage formed by a shaft (401) coupled to a wheel and a coupling component, the shafts (2, 101, 201, 301, 401) of the rotor, of said intermediate stages (100, 200, 300) and of said output wheel being parallel, said gear motor further comprising a printed circuit (20) transversely positioned above said stator assembly (3), characterised in that said wheel of the output stage is positioned above part of said stator assembly (3), the shafts of said intermediate stages (100, 200, 300) being located in the zone of the housing located on the opposite side, relative to a transverse vertical plane (500), of the zone comprising the shaft (2) of said rotor (1) and the shaft (401) of said output wheel.

Classes IPC  ?

• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation
• F16H 1/02 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital
• H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
• H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
• F24F 13/14 - Organes de réglage de l'écoulement d'air, p.ex. persiennes, grilles, volets ou plaques directrices mobiles, p.ex. registres à éléments basculants, p.ex. persiennes

Abrégé

The invention relates to an electrical machine comprising an electromagnetic motor and a complementary connection assembly, said electromagnetic motor comprising a magnetic stator circuit having radially extending teeth and coils surrounding at least one portion of said teeth, each coil being formed by a winding of an insulated conductor around an insulating body, the connection assembly comprising a first subassembly formed of arc-shaped conductive tracks, each of said arc-shaped tracks terminating on one side with at least one connection pin extending in a connection direction and on the other side with a connection pad connecting to one of said coils, said arc-shaped tracks being joined by an insulating plastic material. The insulating bodies of said coils have two slots on their upper portion for inserting connectors each formed by a conductive blade having a first connection end having a connection area suitable for receiving and engaging, in a conductive manner, the winding end of the coil, and a pin on the second end, opposite said connection area and forming a solderless force-inserted connection in a complementary connection pad formed in one of said arc-shaped tracks.

Classes IPC  ?

• H02K 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions

Abrégé

The invention concerns a motorised fluid metering valve (8) comprising an inlet pipe (1), a discharge pipe (2) and a motor (11) moving a piston (3) that can move linearly between a closed position in which the distal end of said piston (3) sealingly engages with a seat of matching shape, and an open position, said valve being configured to have a flow rate that varies continuously between said closed position and said open position depending on the axial position of said piston (3), said inlet pipe (1) opening in the periphery of the discharge pipe (2), with a constant protuberance regardless of the position of said piston (3), said protuberance not extending radially beyond the barycentre (7) of said discharge pipe (2), characterised in that said motor (11) is a rotary electric motor moving said piston (3) in translation.

Classes IPC  ?

• F16K 3/24 - 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
• F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
• F02B 37/18 - Commande des pompes par dérivation des gaz d'échappement
• F02M 26/54 - Actionneurs rotatifs, p.ex. moteurs pas à pas
• F02M 26/68 - Soupapes de levage, p.ex. soupapes de ventilation Éléments de fermeture; Sièges de soupape; Passages d’écoulement
• F02M 26/70 - Soupapes à clapet; Valves rotatives; Soupapes à coulisse; Soupapes souples
• F02M 26/67 - Goujons; Tiges; Ressorts; Palliers; Joints d’étanchéité; Branchements à des actionneurs

Abrégé

The invention relates to a permanent-magnet electric machine driven by an electronic circuit that controls an adjustment of the mean value of the voltage applied by an inverter to the electric machine, proportional to the duty cycle (D) of the pulse-width-modulation (PWM) signal controlling the gates of the transistors. This control law is determined according to the characteristics of the brushless DC motor (BLDC) on the basis of steady-state phase equations, the latter subsequently being corrected according to measurement or simulation results.

Classes IPC  ?

• H02P 6/10 - Dispositions pour commander l'ondulation du couple, p.ex. en assurant une ondulation réduite du couple
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p.ex. de l'huile
• H02K 9/22 - Dispositions de refroidissement ou de ventilation par un matériau solide conducteur de la chaleur s'encastrant dans, ou mis en contact avec, le stator ou le rotor, p.ex. des ponts de chaleur
• H02K 1/27 - Noyaux rotoriques à aimants permanents
• 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

Abrégé

The present invention relates to a motorised valve comprising a body (10) with at least one intake duct (8a) and one outlet duct (8b), a plugging member movably mounted in the body (10) to plug or release a passage between said intake duct (8a) and said outlet duct (8b), and a motorised control system for controlling the movement of the plugging member, said motorised control system comprising a plug valve connecting said intake (8a) and outlet (8b) ducts, a gear motor comprising an electric motor and a reduction gear train, said gear train comprising an exit wheel rotating the plug of said valve so as to allow progressive opening of the valve, characterised in that said gear motor is formed by a casing (1) comprising said electric motor and reduction gear train, the valve body (10) being integrally formed with the casing (1).

Classes IPC  ?

• F16K 5/08 - 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 rota - Détails
• F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
• F16K 27/00 - Structures des logements; Matériaux utilisés à cet effet

Abrégé

The present invention relates to a mechatronic actuator consisting of a housing incorporating a shell (1) and a three-phase electric motor formed by a stator (32) excited by electrical coils and by a magnetised rotor (71), driving an output shaft (17) by means of a gear train, the axis of said rotor (71), the axis of the output shaft (17) and the axes of the intermediate toothed wheels (18 to 20) being parallel, the stator (32) having a radial triangular star shape, the three wound poles (41 to 43) forming the three branches of the star, the axes of symmetry of two consecutive wound poles forming a mechanical angle of 120°, the housing also incorporating an electronic circuit (22) comprising a capacitor (51) for filtering the electrical signal, the shell (1) having a longitudinal axis (L), characterised in that the stator (32) is positioned in the housing in such a way that the axis of symmetry (46) of one of said three wound poles (41, 43) forms an angle of between 70 and 110° with the longitudinal axis (L).

Classes IPC  ?

• H02K 1/14 - Noyaux statoriques à pôles saillants
• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
• H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
• H02K 5/00 - Enveloppes; Enceintes; Supports
• H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p.ex. façonnées pour former des boîtes à connexions ou à bornes
• H02K 7/14 - Association structurelle à des charges mécaniques, p.ex. à des machines-outils portatives ou des ventilateurs
• F16H 57/02 - Boîtes de vitesses; Montage de la transmission à l'intérieur

Abrégé

The invention relates to a gear motor made of a housing (1) enclosing an electric motor (20) driving a reduction gear train having at least one intermediate gear (200, 300, 400, 500) and an output wheel (600), comprising an output wheel (600) made of a single piece having a tooth crown (601) on either side of which extend cylindrical axial extensions which are each held by the housing (1), each one of said extensions having at its respective end a coupling means with an external drive element. The output wheel (600) is coaxial with a toothed wheel (300) constituting one of the intermediate gears, said toothed wheel (300) being able to rotate freely in relation to one of the axial extensions.

Classes IPC  ?

• F16H 1/06 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant uniquement deux organes engrenés dont les axes sont parallèles

Abrégé

The invention relates to an electronically controlled assisted electrohydraulic steering system for vehicles, comprising a steering column (2) provided with a torque sensor (4) located upstream of a steering gear housing (1), said steering gear housing (1) containing an endless screw (25) controlling the rotation of a shaft (22) with a toothed sector, controlling the angular displacement of a steering rod (23), the system further comprising a pump (7) driven by an electric motor (6) controlling the circulation of a fluid in the steering gear housing (1), further comprising a computer (5) comprising an input for the signals supplied by said torque sensor (4) and/or the signals supplied by an autonomous driving system (13) and controlling the throughput, the direction of rotation and the instantaneous volume of said electric pump (7), the hydraulic circuit thus formed operating as a closed circuit.

Classes IPC  ?

• B62D 5/06 - Direction assistée ou à relais de puissance à fluide, c. à d. au moyen d'un fluide sous pression produisant toute la force nécessaire, ou la plus grande partie de celle-ci, pour commander la direction du véhicule
• B62D 5/065 - Direction assistée ou à relais de puissance à fluide, c. à d. au moyen d'un fluide sous pression produisant toute la force nécessaire, ou la plus grande partie de celle-ci, pour commander la direction du véhicule caractérisée par des moyens spécialement adaptés pour faire varier selon les besoins l'alimentation en fluide sous pression, p.ex. à la demande, pour une assistance variable
• B62D 5/24 - Direction assistée ou à relais de puissance à fluide, c. à d. au moyen d'un fluide sous pression produisant toute la force nécessaire, ou la plus grande partie de celle-ci, pour commander la direction du véhicule spécialement adaptée à un type particulier de boîtiers de direction ou à une application particulière du type à vis sans fin

Abrégé

The present invention relates to a display device for vehicles, which comprises a projection element emitting display light and a mirror (1) intended to reflect the display light, said mirror (1) being driven by a drive means intended for its angular displacement. Said drive means is formed by a motor (3) that directly drives a cam (4) having a segment of increasing radius for adjusting the orientation of the mirror (1) in the active position, the peripheral surface of the cam (4) coming into sliding contact against the surface of the mirror (1) or of a lateral stop extending said mirror (1).

Classes IPC  ?

• B60K 35/00 - Agencement ou adaptations des instruments
• G02B 27/01 - Dispositifs d'affichage "tête haute"

Abrégé

The invention relates to a mechatronic assembly (2) for driving a body, which is designed to be connected to a continuous electrical power source (4) and an electronic control unit (1) comprising a computer for running a power-assistance algorithm supplying a pulse-width modulation input signal having discrete states and a cyclic ratio encoding the steering and torque/speed information (6).

Classes IPC  ?

• H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions

Abrégé

The invention relates to an electric stepper motor having at least two electric phases, including a stator (2) having a plurality of magnetic stator poles (P) for each electric phase. The stator includes a magnetic armature (6) comprising a plurality of coil cores (14) and a plurality of coils (8, 9) for each electric phase, which coils are mounted on the coil cores. Each coil defines one of said magnetic poles of the stator. The plurality of coils of each electric phase are formed from at least two conductive wires (11, 21, 31, 41) which are connected in parallel. One or more coils includes one of the conductive wires and one or more other coils comprise the other one of said conductive wires.

Classes IPC  ?

• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
• H02K 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions
• H02K 37/14 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p.ex. moteurs pas à pas du type à aimant permanent avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
• H02K 37/18 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p.ex. moteurs pas à pas du type à aimant permanent avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits du type homopolaire

Abrégé

Electric motor comprising a rotor (10) comprising a magnetized part (18) defining a plurality of rotor poles, a motor stator (12) comprising a plurality of windings (28) and a magnetic armature (26) defining a magnetic circuit, and a rotor brake device (14). The rotor brake device comprises a mobile element (30) and a brake stator (12b) comprising a magnetic brake armature (26b) and a brake activation winding (46) supported by the magnetic brake armature. The brake activation winding is configured to cause the mobile element to move from a disengaged position in which the rotor is free to turn into an engaged position in which the rotor is held in a static position prevented from rotating. The magnetic brake armature (26b) of the brake stator is secured to the magnetic armature (26) of the motor stator (12).

Classes IPC  ?

• H02K 37/14 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p.ex. moteurs pas à pas du type à aimant permanent avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
• H01F 7/124 - Guidage ou positionnement d'armatures, p.ex. maintien des armatures dans leur position extrême au moyen d'un verrou mécanique, p.ex. détente
• H02K 7/102 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des freins à friction

Abrégé

The invention relates to a stator with a plurality of field coils, wherein the yoke teeth, which bear the field coils, of the poles are connected with their free ends to a stator ring, and wherein adjacent pole shoes or poles are connected to one another.

Classes IPC  ?

• H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p.ex. isolement d'encoches

Produits et services

Machines; machines for use in generation of energy; compressors, pumps, compactors, cooling fans. Drives for land and water vehicles and aeroplanes.