The invention relates to an injector for injecting fuel, preferably for injecting a gaseous fuel, in particular hydrogen, comprising a fuel supply line for introducing a highly pressurized gaseous fuel, an active valve which can be actively shut off and which is designed to close or release at least one passage on a first face of a valve plate in order to selectively release or interrupt a fluidic connection between the fuel supply line and a region which is downstream of the first face of the valve plate, and a passive valve which is arranged downstream of the valve plate and can be passively switched to a closing or releasing state as a result of different pressure ratios upstream and downstream of the passive valve.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 61/18 - Buses d'injection, p. ex. comportant des sièges de clapets
The present invention discloses a hydromechanical hybrid gear device with a plurality of power distribution modes, and an associated control method. The gear device comprises an input shaft, a distribution mechanism, a mechanical gear assembly, a hydraulic gear assembly and an output shaft. As a result of the use of a one-way clutch in the mechanical gear change device, a homogeneous use of the individual gear change elements in order to extend the service life can be achieved in addition to enabling motor braking.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
The present invention relates to an injector for injecting fuel, preferably for injecting a gaseous fuel, in particular hydrogen, which comprises a fuel feed line for introducing a gaseous fuel under high pressure, an active valve which is actively switchable and is configured to close or release at least one passage in order to selectively release or interrupt a flow connection from the fuel feed line to an area downstream of the active valve, and a passive valve which is arranged downstream of the active valve and can be passively switched into a closing or releasing state by different pressure conditions applied upstream and downstream of the passive valve in order to selectively release or interrupt a flow connection from upstream of the passive valve to an area downstream of the passive valve.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
The present invention relates to a fuel injector for injecting a fuel into a combustion chamber of an internal combustion engine, which comprises a feed opening for feeding in fuel, at least one outlet opening for outputting the fuel, a nozzle needle which is movable between a closed position, in which the at least one outlet opening is closed, and an open position, in which the at least one outlet opening is opened, and a primary valve which is arranged downstream of the feed opening and upstream of the nozzle needle and is designed to establish a fluid connection between the feed opening and the nozzle needle only when a positive pressure is exceeded by a region upstream of the primary valve with respect to a region downstream of the primary valve.
The present invention relates to a device for direct injection of a gaseous fuel, in particular hydrogen, which device comprises: a pressure-control unit which is designed to convert a supplied variable pressure level of the gaseous fuel into a fixed constant output pressure level; a distributor unit which is connected to at least one injector for direct injection of the gaseous fuel, which has been guided through the pressure-control unit, into a combustion chamber; and a fluid connection between the pressure-control unit and the distributor unit in order to guide the gaseous fuel at a constant output pressure downstream towards the distributor unit. The device is characterized in that a flow-control valve is disposed along the fluid connection and designed to adjust the constant output pressure level of the gaseous fuel to a desired target pressure not exceeding the output pressure level.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 55/04 - Moyens pour amortir les vibrations dans les entrées de pompes d'injection
6.
VALVE SET FOR CONDUCTING AND CONDITIONING A GASEOUS FUEL
The present invention relates to a valve set for conducting and conditioning a gaseous fuel, in particular hydrogen, comprising: an inlet for receiving a pressurised gaseous fuel from a fuel store; an outlet for conveying a pressurised gaseous fuel to a fuel injector; a shut-off valve, which is fluidically connected to the inlet and is used for selectively blocking or allowing the conveying of the gaseous fuel flowing in from the inlet to the outlet; a gas metering valve, which is fluidically connected in series with the shut-off valve and is used for regulating (preferably with regard to pressure and amount) a flow of the gaseous fuel flowing in via the inlet and guiding it to the outlet; and a bleed valve, which is used, in an open state, to reduce the pressure prevailing at the outlet to a predetermined level, in particular to depressurise the outlet, wherein the shut-off valve, in a de-energised state, is closed and blocks a fluid line, and the bleed valve is open in a de-energised state. Preferably, the gas metering valve may be closed in a de-energised state.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02D 19/02 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles gazeux
F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
The present invention relates to an injector for injecting fuel, preferably for blowing-in a gaseous fuel, in particular hydrogen, comprising an injector housing for receiving and arranging injector components, an armature element which is arranged in the injector housing so as to be movable along an axial direction (that is to say the injector longitudinal direction) of the injector and is designed to close or to open a throttle by way of an axial movement along the injector housing in order to allow fuel to flow through this throttle, a solenoid valve which is designed to move the armature element from a closing state to an opening state of the throttle and vice versa, an armature mating piece which is arranged on that side of the armature element opposite the throttle and, in a state of the armature element closing the throttle, defines a gap from the armature element, the gap running in the axial direction and corresponding to a maximum travel of the armature element during a lifting-off process from the throttle, and a non-magnetic or only weakly magnetizable bypass element for targeted control of magnetic field lines, the bypass element being arranged in or on the injector housing level with the gap, as seen in the axial direction. The invention is characterized by a guide element which is attached to an outer circumference of the armature element or is arranged there in order to allow movement of the armature element, without wear as far as possible, in the axial direction in relation to the injector housing during opening and closing of the throttle, the guide element being at a distance from the bypass element in the axial direction given minimum travel of the armature element.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
The present invention relates to an injector for injecting fuel, preferably for blowing in a gaseous fuel, in particular hydrogen, comprising an injector housing for receiving injector components, an armature movably arranged in the injector housing along a longitudinal axis of the injector and adapted to lift a valve needle from a throttle to allow fuel to flow through said throttle, a solenoid valve that is designed to transfer the valve needle from a closing to a releasing state of the throttle and vice versa by moving the armature, and an armature counterpart, which is arranged on the side of the armature opposite the throttle and serves to define a maximum stroke of the armature when the valve needle is lifted from the throttle, characterised in that the armature counterpart is movable along the longitudinal axis of the injector, wherein the movement of the armature counterpart along the longitudinal axis of the injector is limited by a stop on the armature side and a stop on the inlet side.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
The present invention relates to an injector for injecting fuel, preferably for blowing in a gaseous fuel, in particular hydrogen, comprising a sealing element which can be moved back and forth in the longitudinal direction of the injector for selectively releasing or interrupting a fluid connection running through the injector from an inlet to an outlet, and a guide element which at least partially surrounds the sealing element circumferentially and/or which is at least partially surrounded by the sealing element circumferentially, characterised in that the sealing element and the guide element each comprise a permanent magnet, which are arranged relative to one another in such a way that they repel one another and arrange the sealing element at a radial distance from the guide element, preferably radially centring the sealing element relative to the guide element.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 61/12 - Autres injecteurs avec corps des clapets allongés, p. ex. du type soupapes à aiguille caractérisés par l'existence de moyens de guidage ou de centrage pour les corps de clapets
F02M 37/52 - Dispositions d'épuration du combustible liquide spécialement conçues pour les moteurs à combustion interne ou aménagées sur ceux-ci, p. ex. aménagées dans le système d'alimentation caractérisées par des filtres ou des agencements de filtres utilisant des moyens magnétiques
The present invention relates to a device for introducing a fuel into a gas engine, the device having a fuel tank which stores the fuel under a specific pressure, preferably at more than 5 bar, preferentially at more than 7 bar, a pressure control valve which is arranged downstream of the fuel tank and is designed to lower the fuel originating from the fuel tank to a constant, stationary pressure level, a first rail with at least one fuel injector for directly introducing the fuel into a combustion chamber of an engine cylinder, and a second rail with at least one fuel injector for introducing the fuel into an intake region of the engine cylinder. The device is characterized in that both the first rail and the second rail are arranged downstream of the pressure control valve and each draw their fuel that is to be output via their respective at least one fuel injector via the pressure control valve.
F02D 19/02 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles gazeux
F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02D 41/30 - Commande de l'injection de combustible
F02D 41/38 - Commande de l'injection de combustible du type à haute pression
F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
The present invention relates to an injector for injecting gas, in particular hydrogen, preferably for directly injecting hydrogen, comprising an injector housing for holding injector components, a valve needle movably arranged along its longitudinal axis in the injector housing and configured to selectively close or release an injection opening for the flow of hydrogen therethrough, and a valve, preferably a solenoid valve, which is adapted to transfer the valve needle into a closing or releasing state by a movement along its longitudinal axis. The injector is characterized in that the valve needle is a hollow needle adapted to pass a gas, in particular hydrogen, flowing through the injection port through the interior of the hollow needle.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
The invention relates to an injector for injecting fuel, preferably for blowing a gaseous fuel, in particular hydrogen, comprising a sleeve-type housing for receiving injector components, an armature element for moving back and forth in the housing in order to block or enable a flow of the fuel through the injector, an elastic force element for forcing the armature element into the blocking position, an actuator for lifting the armature element out of the blocking position into an open position, said actuator preferably being a solenoid actuator, a support element for supporting the elastic force element, preferably for supporting the elastic force element end facing away from the armature element, and a stop element for defining the maximum distance of the armature element to the blocking position. The injector is characterized in that the support element has a thread on the outer circumferential face of the support element in order to allow an adjustment in the longitudinal direction of the injector and/or the stop element has a thread on the outer circumferential face of the stop element in order to allow an adjustment in the longitudinal direction of the injector.
F02M 61/20 - Fermeture mécanique des clapets, p. ex. par ressorts ou poids
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
The present invention relates to an injector for injecting fuel, preferably for injecting a gaseous fuel, in particular hydrogen, said injector comprising a fuel feed line for introducing a highly pressurised, in particular gaseous fuel, and an active valve which is actively switchable and is designed to open or interrupt a flow connection from the fuel feed line to a region downstream of the active valve, the active valve having an actuator which is designed to lift an armature, which is movable back and forth in the injector, of the active valve out of its closed position. The injector is characterised in that the housing section of the injector accommodating the actuator has on its outer contour at least one scraper element extending in the circumferential direction in order, in interaction with an installation space for the injector, to prevent undesirable creep of a thermally conductive paste which can be applied to the outer circumferential side of the housing section.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 53/04 - Injecteurs avec moyens de chauffage, de refroidissement ou d'isolation thermique
The present invention relates to an injector (1) for injecting fuel, preferably for injecting a gaseous fuel, in particular hydrogen, the injector comprising a fuel feed line for introducing a highly pressurized gaseous fuel; an active valve (3) which is actively switchable and is designed to selectively open or close a flow connection from the fuel feed line to a region downstream of the first side of the valve plate (5), in particular by virtue of at least one passage (A1) being opened or closed at a first side of a valve plate by the active valve; and a passive valve (4), which is arranged downstream of the valve plate and which is passively switchable into a closing or opening state by different pressure conditions prevailing upstream and downstream of the passive valve, wherein the passive valve has a plunger (6) which is forced in a closing direction of the passive valve by magnetic force, and wherein the at least one passage can preferably be closed or opened at a second side of the valve plate, which faces away from the first side, by the plunger.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 61/18 - Buses d'injection, p. ex. comportant des sièges de clapets
F16K 15/02 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés
The invention relates to an injector (1) for injecting fuel, preferably for injecting a gaseous fuel, in particular hydrogen, comprising a fuel supply line for introducing a highly pressurized gaseous fuel, an active valve (3) which can be actively shut off and which is designed to close or release at least one passage (A1) on a first face of a valve plate (5) in order to selectively release or interrupt a fluidic connection between the fuel supply line and a region which is downstream of the first face of the valve plate, and a passive valve (4) which is arranged downstream of the valve plate and can be passively switched to a closing or releasing state as a result of different pressure ratios upstream and downstream of the passive valve, wherein the passive valve is designed to close or release the at least one passage on a second face of the valve plate facing away from the first face by means of a tappet in order to selectively release or interrupt a fluidic connection between the second face of the valve plate and a region downstream of the passive valve.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 61/18 - Buses d'injection, p. ex. comportant des sièges de clapets
F16K 15/02 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés
The present invention relates to an injector for injecting fuel, preferably for directly blowing in a gaseous fuel, in particular hydrogen, comprising a fuel feed line for introducing a gaseous fuel which is under high pressure, an actively switchable active valve, which is designed to close or release at least one passage in order to either permit or interrupt a flow connection from the fuel feed line to a region downstream of the active valve, and a passive valve which is arranged downstream of the active valve and is passively switchable by different pressure ratios prevailing upstream and downstream of the passive valve into a closing or releasing state in order to either permit or interrupt a flow connection from upstream of the passive valve to a region downstream of the passive valve. The invention is further characterized in that a reciprocating tappet of the passive valve comprises a permanent magnet or is a permanent magnet, and that a tappet guide for guiding the reciprocating movement of the tappet is provided, said tappet guide being electrically conductive and non-magnetizable or only weakly magnetizable.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 61/08 - Injecteurs de combustible non couverts dans les groupes ou comportant des clapets les clapets s'ouvrant dans la direction du flux de combustible
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
17.
ELECTROMAGNETIC VALVE, IN PARTICULAR FOR SWITCHING A FUEL INJECTOR
The invention relates to an electromagnetic valve, in particular for switching a fuel injector, such as a fuel injector for gaseous fuel, preferably hydrogen, and comprising an armature which is guided such that it can move in an armature guide in the axial direction of the valve, and which is designed to seal a throttle point in a closed position, a coil which is designed to raise the armature from the closed position by means of magnetic force, and a magnetic core which at least partially surrounds the coil. The invention is characterised in that, in a maximum raised position of the armature from the closed position, an axial residual air gap remains between the magnetic core and the armature, in order to guide magnetic field lines brought about by the coil via a metal, magnetisable connection between the magnetic core and the armature not in an uninterrupted manner.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
The present invention relates to a device for direct injection of a gaseous fuel, in particular hydrogen, which device comprises: a pressure-control unit which is designed to convert a supplied variable pressure level of the gaseous fuel into a fixed constant output pressure level; a distributor unit which is connected to at least one injector for direct injection of the gaseous fuel, which has been guided through the pressure-control unit, into a combustion chamber; and a fluid connection between the pressure-control unit and the distributor unit in order to guide the gaseous fuel at a constant output pressure downstream towards the distributor unit. The device is characterized in that a flow-control valve is disposed along the fluid connection and designed to adjust the constant output pressure level of the gaseous fuel to a desired target pressure not exceeding the output pressure level.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02D 19/02 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles gazeux
F02M 37/00 - Appareils ou systèmes pour transférer le combustible liquide des réservoirs de stockage aux carburateurs ou aux injecteursDispositions d'épuration du combustible liquide spécialement conçues pour les moteurs à combustion interne ou aménagées sur ceux-ci
F02M 55/04 - Moyens pour amortir les vibrations dans les entrées de pompes d'injection
A device comprises: an injector for injecting fuel into an engine combustion chamber, a switch formed by an injector housing and an injector nozzle needle and which changes its switching state depending on a closed or open state of the injector, an input line for supplying energy to an actuating element which adjusts the nozzle needle in its two states, an output line for conducting energy away from the actuating element, and an evaluation unit for detecting the switching state of the switch, wherein a first switch contact of the switch is connected to an electrical input line of the injector, a second switch contact of the switch is connected to ground, and the evaluation unit is configured to carry out a signal measurement on the input line and/or an output line to conclude a switch state.
The present invention relates to an injector for injecting gas, preferably for directly injecting hydrogen, comprising a fuel feed line for introducing a gaseous fuel which is under high pressure, an actively switchable active valve, preferably an active solenoid valve, which is designed to take up a closing or a releasing state in order either to permit or to interrupt a flow connection from the fuel feed line to a region downstream of the active valve, and a passive valve which is arranged downstream of the active valve and is passively switchable by different pressure ratios prevailing upstream and downstream into a closing or releasing state and/or can be brought into a closing or releasing state by contact with a movable part of the active valve. The injector is characterized in that, in a closed state of the active valve, at least one sealing surface of the active valve is sealed by an elastic sealing element, preferably an elastomer, preferentially by means of a metal-elastomer seal.
F02M 61/16 - Détails non couverts dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
F02M 61/04 - Injecteurs de combustible non couverts dans les groupes ou comportant des clapets
F02M 61/08 - Injecteurs de combustible non couverts dans les groupes ou comportant des clapets les clapets s'ouvrant dans la direction du flux de combustible
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
21.
NEEDLE STROKE SWITCH AND FUEL INJECTOR HAVING SUCH A NEEDLE STROKE SWITCH
A needle stroke switch and a fuel injector having such a switch, the needle stroke switch including a seat plate having a plate-like main body and a passage connecting the two planar sides of the plate-like main body, an anchor element which can be lifted off from the passage in the seat plate, and a control valve which is arranged on the side of the seat plate opposite the anchor element and is designed to interact with a nozzle needle. The seat plate is electrically isolated from a surrounding injector housing and an electrical connection to the injector housing is possible only via the nozzle needle which interacts with the seat plate. Furthermore, the needle stroke switch is characterised in that at least one ceramic and/or plastic part is provided which contacts the seat plate in order to isolate the seat plate from the surrounding injector housing.
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 65/00 - Test des appareils d'injection de combustible, p. ex. test du début d'injection
The present invention relates to a fuel injector for injecting a fuel into a combustion chamber of an internal combustion engine, in particular a diesel engine, which comprises a feed opening for feeding in fuel, at least one outlet opening for outputting the fuel, a nozzle needle which is movable between a closed position, in which the at least one outlet opening is closed, and an open position, in which the at least one outlet opening is opened, and a primary valve which is arranged downstream of the feed opening and upstream of the nozzle needle and is designed to establish a fluid connection between the feed opening and the nozzle needle only when a positive pressure is exceeded by a region upstream of the primary valve with respect to a region downstream of the primary valve. The fuel injector is characterized by a safety valve which is arranged downstream of the feed opening and upstream of the nozzle needle and is designed to establish a fluid connection between the feed opening and the nozzle needle only when a positive pressure is exceeded by a region downstream of the safety valve with respect to a region upstream of the safety valve.
F02M 63/02 - Appareils d'injection de combustible comportant plusieurs injecteurs alimentés par un élément de pompage commun ou ayant plusieurs éléments de pompage alimentant un injecteur communAppareils d'injection de combustible comportant la mise hors circuit des pompes, des éléments de pompe ou injecteursAppareils d'injection de combustible avec possibilités de connecter de façon variable et alternativement les éléments de pompage et les injecteurs
F02M 61/04 - Injecteurs de combustible non couverts dans les groupes ou comportant des clapets
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
23.
NOZZLE NEEDLE FOR A FUEL INJECTOR, AND INJECTOR HOUSING FOR A NOZZLE NEEDLE
A nozzle needle for a fuel injector, the nozzle needle including an elongated nozzle needle main body which has, at one of its two long ends, a nozzle needle tip for selectively closing an injection opening of the fuel injector. The nozzle needle also including a plastic and/or ceramic sleeve for enclosing the nozzle needle main body peripherally along a longitudinal region of the nozzle needle, which longitudinal region is spaced apart from the nozzle needle tip.
F02M 61/16 - Détails non couverts dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
F02M 61/12 - Autres injecteurs avec corps des clapets allongés, p. ex. du type soupapes à aiguille caractérisés par l'existence de moyens de guidage ou de centrage pour les corps de clapets
24.
METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE WITH A MIXTURE OF AMMONIA AND DIMETHYL ETHER, AND INTERNAL COMBUSTION ENGINE THEREFOR
The present invention relates to a method for operating an internal combustion engine with a mixture of ammonia and dimethyl ether, comprising the steps of: injecting or blowing the liquefied or gaseous mixture into a combustion chamber, igniting the injected or blown-in mixture in the combustion chamber, and using the expansion of the ignited mixture for driving the internal combustion engine, preferably also comprising the step, prior to the injection or blowing step; liquefying the mixture by generating an overpressure, preferably an overpressure of at least 5 bar, preferably of 8 bar, and particularly preferably of 9 bar and an overpressure of at most 20 bar, preferably of 15 bar, and particularly preferably of 10 bar.
F02D 19/06 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p. ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé
F02D 19/08 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p. ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé utilisant simultanément des combustibles multiples
The present invention relates to a valve plate (9) for an injector (1) for injecting fuel, more particularly for injecting a gaseous fuel, comprising: - a plate-type main body (91), which has two planar sides; and - a through-hole (92), which extends through the main body and fluidically interconnects the two planar sides of the main body (91). The valve plate is characterized in that a sealing element (93) is provided, which is disposed on a first of the two planar sides and surrounds an opening contour of the through-hole (92).
F02M 55/04 - Moyens pour amortir les vibrations dans les entrées de pompes d'injection
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 61/18 - Buses d'injection, p. ex. comportant des sièges de clapets
26.
INJECTION CONDUIT FOR AN INJECTOR FOR FUEL INJECTION
The present invention relates to an injection conduit (50) for an injector (1) for fuel injection, particularly gaseous fuel and preferably hydrogen, which comprises at least one outlet opening (51) through which the injectable fuel can flow, characterised in that an inner contour (52) of an outlet cross-section (53) of the at least one outlet opening (51) comprises both at least one convex (x) and at least one concave (v) section.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F02M 61/18 - Buses d'injection, p. ex. comportant des sièges de clapets
The present invention relates to an injector for injecting gas, more particularly hydrogen, preferably for directly injecting hydrogen, comprising: - an injector housing for holding injector components; - a valve needle, which is disposed in the injector housing for movement along the longitudinal axis of the valve needle and is designed to selectively close or open an injection opening for the flow of hydrogen therethrough; and - a valve, preferably a solenoid valve, which is designed to put the valve needle into a closing or opening state by a movement along the longitudinal axis of the valve needle. The injector is characterized in that the valve needle is a hollow needle which is designed to conduct a gas flowing through the injection opening, more particularly hydrogen, through the interior of the hollow needle.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
28.
INJECTOR UNIT FOR THE INJECTION OF FUEL, AND METHOD FOR THE OPERATION OF AN INJECTOR UNIT OF THIS TYPE
The injector unit according to the disclosure comprises a seat plate with a through opening extending through the seat plate, an armature element which can be placed onto the seat plate, in order to close the through opening, a spring element pushing the armature element in the direction of the seat plate, in order to close the through opening, an electromagnet designed to load the armature element with a force, in order to lift the armature element from the seat plate, and a stop for limiting a stroke of the armature element in a state in which it is lifted from the seat plate. The injector unit is characterized by a control unit designed to reduce an actuating signal of the electromagnet for lifting the armature element from the seat plate before the armature element contacts the stop for the first time after being lifted from the seat plate.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02D 41/20 - Circuits de sortie, p. ex. pour la commande des courants dans les bobines de commande
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
The present disclosure relates to a nozzle for a fuel injector that comprises a pivotably symmetrical nozzle member having a hollow space for introducing a nozzle needle, a nozzle tip that is provided at a longitudinal end of the nozzle member, and at least one opening for discharging fuel, and a nozzle needle arranged in the hollow space for a selective blocking of a fuel inflow to the at least one opening, wherein the nozzle needle is designed as tubular in the region of the nozzle tip and is adapted to conduct fuel in the interior of the tubular region to the at least one opening.
The present invention relates to a nozzle of a fuel injector that comprises a pivotably symmetrical nozzle body having a hollow space for introducing a nozzle needle, a nozzle tip that is provided at one longitudinal end of the nozzle body and has openings for discharging fuel, a housing contact surface that is provided at the other longitudinal end of the nozzle body and serves the pressing at a housing of a fuel injector, and an overhang surface that is provided in the longitudinal extent of the nozzle body between the nozzle tip and the housing contact service and that serves the placement of a nozzle clamping nut. The nozzle is characterized in that the minimal distance of the pivot axis of the nozzle body from the overhang surface is smaller than the minimal distance of the pivot axis of the nozzle body from the housing contact surface.
The present invention relates to a sealing sleeve for the separated supply and discharge of a cooling medium that comprises a sealing member that is pivotally symmetrical about the longitudinal axis, a protrusion projecting radially outwardly with respect to the longitudinal axis at the upper longitudinal end of the sleeve member, a protrusion projecting radially outwardly with respect to the longitudinal axis at the lower longitudinal end of the sleeve member, a first web section and a second web section of which each one extends in the axial direction of the sleeve member and connects the upper protrusion to the lower protrusion, and a first wall region and a second wall region of which each one is bounded in the axial direction by the upper and lower protrusions and in the peripheral direction by the first and second web sections and is radially inward offset with respect to these elements, with the upper protrusion and the lower protrusion each extending continuously around the total periphery of the sleeve member and defining its maximum radial extent, and with the first wall region and the second wall region each having a radially extending passage channel to radially supply or discharge a cooling medium.
F02M 53/04 - Injecteurs avec moyens de chauffage, de refroidissement ou d'isolation thermique
F16J 15/06 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre
B01D 29/03 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants avec des éléments filtrants plats autoportants
B01D 29/56 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants à plusieurs éléments filtrants caractérisés par leur agencement relatif montés en série
32.
FLOW LIMITER FOR A FUEL INJECTION SYSTEM, AND FUEL INJECTION SYSTEM COMPRISING A FLOW LIMITER
The present invention relates to a flow limiter (1) for a fuel injection system, which flow limiter comprises a throttling sleeve (2) with a through-hole (3), a throttle insert (4) which is received movably in the through-hole (3), a sealing portion (5) in the through-hole (3), which sealing portion is a cross-sectional reduction of the through-hole as compared to a first portion of the through-hole in which the throttle insert (4) is arranged, and a spring element (6) which is received in the through-hole (3) and pushes the throttle insert (4) away from the sealing portion (5). The invention is characterised in that the throttle insert (4) has, on its side nearest the sealing portion (5), a sealing surface (10), which closes the through-hole (3) when the sealing surface is in contact with the sealing portion (5). The throttle insert (4) has at least one throttle line (12), which provides a fluidic connection along the through-hole from an inlet opening in the side of the throttle insert (4) furthest from the sealing surface (10) to an outlet opening in the side of the throttle insert (4) closest to the sealing surface (10). The outlet opening is preferably arranged in such a way that the flow exiting from said outlet opening exits within the spring element (6).
F02M 55/02 - Conduits entre pompes d'injection et injecteurs
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 63/02 - Appareils d'injection de combustible comportant plusieurs injecteurs alimentés par un élément de pompage commun ou ayant plusieurs éléments de pompage alimentant un injecteur communAppareils d'injection de combustible comportant la mise hors circuit des pompes, des éléments de pompe ou injecteursAppareils d'injection de combustible avec possibilités de connecter de façon variable et alternativement les éléments de pompage et les injecteurs
F16K 17/04 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté actionnés par ressort
A nozzle for a fuel injector the nozzle having a pivotably symmetrical nozzle member with a hollow space for introducing a nozzle needle, a nozzle tip at a longitudinal end of the nozzle member, at least one opening channel extending in a straight line for the discharge of fuel, and a nozzle needle arranged in the hollow space for selectively blocking an fuel inflow to the at least one opening channel. The nozzle is characterized in that the at least one opening channel has a center axis that is skewed with respect to the longitudinal axis of the nozzle member.
An injector for injecting fuel including an injector housing, a movable nozzle needle with a nozzle needle tip arranged in the injector housing, and a nozzle needle seat for receiving the nozzle needle tip. A contact pairing of the nozzle needle and the nozzle needle seat here represents a mechanical switch that adopts a closed state upon contact of the nozzle needle tip with the nozzle needle seat and an open state upon interruption of the contact. Provision is additionally made that the injector has an input line and an output line for controlling movement of the nozzle needle, the switch has a first connector connected to the input line and a second connector connected to the injector housing, and a resistor connected between the first connector of the switch and the input line.
The invention relates to a high-pressure pump for raising the pressure level of a fluid, more particularly a fuel, the high-pressure pump comprising: - a movable piston for compressing a pump chamber; - an inlet valve for letting the fluid into the pump chamber; - a cooling device for cooling the piston with the aid of fluid flowing upstream of the inlet valve; and - a volumetric-flow-rate control valve, which is disposed upstream of the cooling device and influences a volumetric flow rate of the fluid through the cooling device toward the inlet valve. The pump is characterized by a bypass throttle for the bypassing of the volumetric-flow-rate control valve and by a return throttle for leading away a fluid downstream of the cooling device.
The present invention relates to a nozzle for injecting fuel comprising an orifice in the region of a nozzle tip for leading fuel out of the nozzle and a reception hole for receiving a nozzle needle, wherein the reception hole has a seat region for a sealing closing by a nozzle needle to enable a fuel supply to the orifice in dependence on a position of the nozzle needle, characterized in that the longitudinal axis of the orifice is directed toward a region of the reception hole that adjoins the side of the seat region remote from the nozzle tip.
The device according to the invention for detecting the state of a fuel injector comprises an injector for injecting fuel into an engine combustion chamber, a switch which is formed by an injector housing and an injector nozzle needle and which changes its switching state in a manner which is dependent on a closed or open state of the injector, an input line for feeding power to an actuating element which adjusts the nozzle needle into the two states thereof, an output line for discharging power from the actuating element, and an evaluation unit for detecting the switching state of the switch, wherein a first switch contact of the switch is connected to an electrical input line of the injector, a second switch contact of the switch is connected to ground, and the evaluation unit is configured to perform a signal measurement, in particular a voltage measurement, on the input line and/or an output line in order to infer a switch state. The invention is characterized in that a signal filter is provided which comprises only passive components and which is connected between the evaluation unit and the input line and/or between the evaluation unit and the output line of the injector in order to pick out a signal that is generated as a result of the switching of the switch.
The invention relates to a method for producing a nozzle, in which an injection orifice of the nozzle for dispensing fuel is produced by means of laser drilling, and a cavity is formed in the nozzle along the longitudinal expansion thereof. The method is characterised in that the cavity formed in the injector is produced after the injection orifice has been produced.
The invention relates to a nozzle needle for a fuel injector, which nozzle needle comprises an elongated nozzle needle main body which has, at one of its two long ends, a nozzle needle tip for selectively closing an injection opening of the fuel injector. The invention is characterised by a plastic and/or ceramic sleeve for enclosing the nozzle needle main body peripherally along a longitudinal region of the nozzle needle, which longitudinal region is spaced apart from the nozzle needle tip.
The invention relates to a fuel injector (1), comprising an injector housing (2, 3, 4, 5) for receiving injector components, a nozzle needle (6) which is movably arranged along its longitudinal axis (X) in the injector housing and is designed to optionally close or release an injection opening, and a magnet valve (7) which is designed to transfer the nozzle needle into a closing or releasing state. The injector is characterized in that the magnet valve and the nozzle needle are in each case centrally arranged on a common longitudinal axis.
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 61/16 - Détails non couverts dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
The invention relates to a fuel injector, comprising an elongate main housing part, which has preferably a connection for supplying fuel, a housing tip section for receiving a nozzle needle, which is to be sealingly arranged on a front face of the main housing part, and a nozzle clamping nut which is designed to cooperate with the main housing part and to push the housing tip section against the front face of the main housing part, wherein the injector is characterized in that the nozzle clamping nut is an expandable sleeve which is deformable at strain in its longitudinal direction.
The invention relates to a needle stroke switch and to a fuel injector having such a needle stroke switch, the needle stroke switch for a fuel injector comprising a seat plate having a plate-like main body and a passage connecting the two planar sides of the plate-like main body, an anchor element which can be lifted off from the passage in the seat plate and can be placed thereon to form a seal, and a control valve which is arranged on the side of the seat plate opposite the anchor element and is designed to interact with a nozzle needle. The seat plate is electrically isolated from an injector housing surrounding it and an electrical connection to the injector housing is possible only via the nozzle needle which interacts with the seat plate. Furthermore, the needle stroke switch is characterised in that at least one ceramic and/or plastic part is provided which contacts the seat plate in order to isolate the seat plate from the injector housing surrounding it.
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 65/00 - Test des appareils d'injection de combustible, p. ex. test du début d'injection
43.
FUEL INJECTOR HOUSING AND INJECTOR HAVING SUCH HOUSING
The invention relates to a fuel injector housing which comprises a portion for accommodating a magnetic valve or piezo valve controlling a nozzle needle, a pressure accumulator for accommodating fuel at high pressure, and at least one fuel line which extends away from the pressure accumulator and leads to a fuel outlet region of the injector housing. The housing is characterised in that the portion for accommodating the magnetic valve or piezo valve is located between the pressure accumulator and the fuel outlet region when viewed in the longitudinal direction of the injector.
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
The present invention relates to a valve of a fuel injector for selectively disconnecting a high pressure region from a low pressure region of a fuel, comprising an opening in a seat plate, an armature which is designed to close the opening of the seat plate, a spring element which prestresses the armature in the direction of a position which closes the opening, and an electromagnet for lifting the armature out of the position which closes the opening into a position which releases the opening, characterized by an elastically compressible damping element for limiting an armature stroke in the case of the armature being lifted from the seat plate into the releasing position.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
The present invention relates to a seat plate for an injector, comprising: a planar main body having a first flat side and a second flat side; a passage, which extends through the planar main body from the first flat side to the second flat side; and an indentation region in the first flat side, which indentation region surrounds an opening of the passage. The seat plate is characterised in that a plurality of webs are formed in the first flat side through the indentation region, the ratio of length to width of each web lying in the range of 2.5-3.5:1, preferably in the range from 2.7-3.3:1, more preferably in the range from 2.9-3.1:1.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
46.
Connecting piece for a fuel injector of an internal combustion engine
The invention relates to a connecting piece for a fuel injector of an internal combustion engine comprising at least one high-pressure input port and at least one high-pressure output port, wherein the high-pressure input port and the high-pressure output port open into an internal high-pressure accumulator of the connecting piece and/or the injector via separate high-pressure feed channels.
A fuel injector having a seat plate with a passage throttle; a valve insert arranged at a first side of the seat plate; a valve guide surrounding the valve insert and adapted for slidable reception of the valve insert; a spring sheath surrounding at least a section of a jet needle arranged at a second side of the valve insert, the second side opposite the first side and the seat plate; a valve chamber fluidly connected to the passage throttle; a control chamber adapted for reception of fuel; and a line arranged in the valve insert connecting the control chamber and the valve chamber to one another, wherein the line is closeable by placement of the valve insert onto the spring sheath.
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
48.
Injector, and device for detecting the condition of such an injector
The present invention relates to an injector for injecting fuel, comprising an injector housing, a movable nozzle needle which is arranged in the injector housing and has a nozzle needle tip, a nozzle needle seat for receiving the nozzle needle tip, and a mechanical switch which upon contact of the nozzle needle tip with the nozzle needle seat assumes a closed state and upon interruption of the contact assumes an open state, wherein the injector is provided with an input line and an output line for actuating a movement of the nozzle needle, and the switch includes a first terminal and a second terminal. The injector is characterized in that the first terminal of the switch is connected to the input line and the second terminal of the switch is connected to the injector housing.
The present invention relates to a flow limiter for a fuel injection system, which flow limiter comprises: a throttle bush, which has a through-hole; a throttle insert, which is movably held in a first portion of the through-hole; a sealing portion in a second portion of the through-hole, which has a reduced cross-section in comparison with the first portion of the through-hole; and a spring element, which is held in the through-hole and pushes the throttle insert away from the sealing portion. The invention is characterized in that the throttle insert has, at its end nearest the sealing portion, a sealing surface, which closes the through-hole when the sealing surface is in contact with the sealing portion.
F02M 55/02 - Conduits entre pompes d'injection et injecteurs
F02M 61/16 - Détails non couverts dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 63/02 - Appareils d'injection de combustible comportant plusieurs injecteurs alimentés par un élément de pompage commun ou ayant plusieurs éléments de pompage alimentant un injecteur communAppareils d'injection de combustible comportant la mise hors circuit des pompes, des éléments de pompe ou injecteursAppareils d'injection de combustible avec possibilités de connecter de façon variable et alternativement les éléments de pompage et les injecteurs
F02M 55/00 - Appareils d'injection caractérisés par leurs conduits de combustible ou évents
F16K 17/30 - Soupapes ou clapets limiteurs de débit fonctionnant par différence de pression entre deux points de l'écoulement et agissant directement sur l'élément d'obturation dans un sens uniquement sous l'action d'un ressort
50.
SEAT PLATE FOR AN INJECTOR AND METHOD FOR PRODUCING A SEAT PLATE OF THIS TYPE
The invention relates to a seat plate for an injector, comprising a plate-shaped main part having a first planar face, a second planar face and an all-around lateral surface interconnecting the two planar faces, an opening, which extends through the plate-shaped main part from the first planar face to the second planar face, and an insulating coating, arranged over the entire all-around lateral surface and partly on at least one of the two planar faces of the plate-shaped main part, the plate-shaped main part consisting of an electrically conductive material. The invention is characterized in that the insulating layer includes or consists of a ceramic.
F02M 65/00 - Test des appareils d'injection de combustible, p. ex. test du début d'injection
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
B33Y 80/00 - Produits obtenus par fabrication additive
The present invention relates to a fuel injector comprising: a nozzle body having a cavity for inserting a nozzle needle; a nozzle tip provided at a longitudinal end of the nozzle body and having an opening channel for discharging fuel; and a heat shield for cooling the nozzle tip, said heat shield having a recess for the passage of a nozzle tip section provided with the opening channel and being attached to the nozzle body in a sealing manner, wherein a gap between the nozzle body and the heat shield can be supplied with a cooling fluid via an inlet and an outlet. The invention is characterised in that at least one element for guiding the flow of a cooling fluid flowing between the inlet and outlet is provided in the gap.
The present invention relates to an injector for injecting fuel, comprising an injector housing for receiving at least one injector component, and an electromagnet for activating a valve for opening and closing the injector, wherein the electromagnet comprises a coil winding and a magnetic body, wherein the injector housing is formed in one piece with the magnetic body.
F02M 51/00 - Appareils d'injection de combustible caractérisés par une commande électrique
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 61/16 - Détails non couverts dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
Device for controlling an injector, including a passage space which can be closed off on one of its two sides by an armature element in order to thereby optionally separate a fluid high-pressure region from a fluid low-pressure region of the injector, a control space for applying a variable pressure to an injector component, preferably an injector needle, a valve which is arranged between another of the two sides of the passage space and the control space, a first connection which connects the high-pressure region of the injector to the passage space, and a second connection which connects the passage space to the control space, wherein the valve is configured to establish a direct connection between the high-pressure region and the control space if the pressure level in the passage space is equal to or higher than a predetermined value.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
54.
SEALING SLEEVE AND SEALING ARRANGEMENT HAVING SEALING SLEEVE
The present invention relates to a sealing sleeve for separately supplying and discharging a coolant, which sealing sleeve comprises: a sleeve body, which is rotationally symmetrical about the longitudinal axis thereof; a protrusion on the upper longitudinal end of the sleeve body, said protrusion protruding radially outward relative to the longitudinal axis; a protrusion on the lower longitudinal end of the sleeve body, said protrusion protruding radially outward relative to the longitudinal axis; a first and a second web portion, of which each extends in the axial direction of the sleeve body and connects the upper protrusion to the lower protrusion; and a first and a second wall region, of which each is delimited in the axial direction by the upper and lower protrusion and in the circumferential direction by the first and second web portion and is offset radially inward relative to said elements, wherein the upper protrusion and the lower protrusion each extend continuously around the entire circumference of the sleeve body and define the maximum radial extent thereof, and the first wall region and the second wall region each have at least one radially extending through-channel in order to radially supply or discharge a coolant.
F02M 53/04 - Injecteurs avec moyens de chauffage, de refroidissement ou d'isolation thermique
F02M 61/16 - Détails non couverts dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
F16L 17/06 - Raccords avec garnitures adaptées à une étanchéité par pression de fluide avec segments d'étanchéité disposés entre les surfaces d'extrémité des tuyaux ou des brides, ou disposés dans des chambrages pratiqués dans les extrémités des tuyaux ou des brides
55.
NOZZLE OF A FUEL INJECTOR, AND FUEL INJECTOR COMPRISING SUCH A NOZZLE
The invention relates to a nozzle of a fuel injector, having a rotationally symmetrical nozzle body with a cavity for introducing a nozzle needle, a nozzle tip which is provided on one longitudinal end of the nozzle body and has openings for discharging fuel, a housing contact surface which is provided on the other longitudinal end of the nozzle body and which is used to press against the housing of a fuel injector, and a projection surface which is provided between the nozzle tip and a housing contact surface in the longitudinal extension of the nozzle body and which is used to apply a nozzle clamping nut. The nozzle is characterized in that the minimum distance between the rotational axis of the nozzle body and the projection surface is less than the minimum distance between the rotational axis of the nozzle body and the housing contact surface.
The invention relates to a nozzle for a fuel injector, having a rotationally symmetrical nozzle body with a cavity for introducing a nozzle needle, a nozzle tip which is provided at a longitudinal end of the nozzle body, and at least one opening for discharging fuel, and a nozzle needle which is arranged in the cavity for selectively blocking a flow of fuel to the at least one opening, wherein the nozzle needle has a tubular design in the region of the nozzle tip and is designed to conduct fuel in the interior of the tubular region to the at least one opening.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 61/18 - Buses d'injection, p. ex. comportant des sièges de clapets
The invention relates to a nozzle for a fuel injector, having a rotationally symmetrical nozzle body with a cavity for introducing a nozzle needle, a nozzle tip which is provided at a longitudinal end of the nozzle body, and at least one linear opening channel for discharging fuel, and a nozzle needle which is arranged in the cavity for selectively blocking a flow of fuel to the at least one opening channel. The nozzle is characterized in that the at least one opening channel has a central axis which is inclined to the longitudinal axis of the nozzle body.
In accordance with the invention, the injector unit for the injection of fuel comprises a seat plate with a through opening which extends through the seat plate, an armature element which can be placed onto the seat plate, in order to close the through opening, a spring element which pushes the armature element in the direction of the seat plate, in order to close the through opening, an electromagnet which is designed to load the armature element with a force, in order to lift the armature element from the seat plate, and a stop for limiting a stroke of the armature element in a state in which it is lifted from the seat plate. The injector unit is characterized by a control unit which is designed to reduce an actuating signal of the electromagnet for lifting the armature element from the seat plate before the armature element makes contact with the stop for the first time after being lifted from the seat plate.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
The invention relates to a device for sensing the state of an injector, comprising an injector for injecting fuel into an engine combustion chamber, a switch, which is designed to change the switching state thereof in accordance with the state of the injector, and an evaluating unit for sensing the switching state of the switch, wherein a first switch contact of the switch is connected to an electrical input line of the injector, a second switch contact of the switch is connected to ground, and the evaluating unit is designed to carry out a first current measurement for a current flowing into the injector and into the switch and a second current measurement for the current flowing into the injector.
The invention relates to an injector for injecting fuel, comprising an injector housing, a movable nozzle needle, which is arranged in the injector housing and has a nozzle needle tip, and a nozzle needle seat for receiving the nozzle needle tip. A contact pairing of the nozzle needle and the nozzle needle seat constitutes a mechanical switch, which assumes a closed state when the nozzle needle tip contacts the nozzle needle seat and an open state when the contact is interrupted. Furthermore, according to the invention, the injector has an input line and an output line for controlling movement of the nozzle needle, the switch has a first terminal, which is connected to the input line, and a second terminal, which is connected to the injector housing, and a resistor is connected between the first terminal of the switch and the input line. The inventive is characterized in that the resistor is a high-temperature resistor chip.
The invention relates to a fuel injection valve for the intermittent injection of fuel into the combustion chamber of an internal combustion engine having a housing which has a high pressure chamber and a low pressure chamber. In addition, the fuel injection valve has a control chamber which is divided by means of a control valve into a first and a second control chamber. The control valve in turn has a valve guide and a valve insert, wherein an outflow throttle which connects the first control chamber to the second control chamber is arranged in the valve guide. According to the invention, the connection which is formed by way of the outflow throttle between the first control chamber and the second control chamber can be interrupted temporarily in a targeted manner.
F02M 61/04 - Injecteurs de combustible non couverts dans les groupes ou comportant des clapets
F02M 61/10 - Autres injecteurs avec corps des clapets allongés, p. ex. du type soupapes à aiguille
F02M 61/14 - Disposition des injecteurs par rapport aux moteursMontage des injecteurs
F02M 61/18 - Buses d'injection, p. ex. comportant des sièges de clapets
F02M 61/20 - Fermeture mécanique des clapets, p. ex. par ressorts ou poids
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
The present invention relates to a valve of a fuel injector for selectively disconnecting a high pressure region from a low pressure region of a fuel, comprising an opening in a seat plate, an armature which is designed to close the opening of the seat plate, a spring element which prestresses the armature in the direction of a position which closes the opening, and an electromagnet for lifting the armature out of the position which closes the opening into a position which releases the opening, characterized by an elastically compressible damping element for limiting an armature stroke in the case of the armature being lifted from the seat plate into the releasing position.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
F02D 41/26 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants caractérisée par l'utilisation de moyens numériques utilisant des calculateurs, p. ex. microprocesseurs
F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
F02M 55/02 - Conduits entre pompes d'injection et injecteurs
F02M 63/02 - Appareils d'injection de combustible comportant plusieurs injecteurs alimentés par un élément de pompage commun ou ayant plusieurs éléments de pompage alimentant un injecteur communAppareils d'injection de combustible comportant la mise hors circuit des pompes, des éléments de pompe ou injecteursAppareils d'injection de combustible avec possibilités de connecter de façon variable et alternativement les éléments de pompage et les injecteurs
64.
CONNECTION PIECE FOR A FUEL INJECTOR IN AN INTERNAL COMBUSTION ENGINE
The invention relates to a connection piece (10) for a fuel injector in an internal combustion engine, comprising at least one high-pressure inlet port (A) and at least one high-pressure outlet port (B), said high-pressure inlet port (A) and said high-pressure outlet port (B) extending, via separate high-pressure feed channels (11A, 11B), into an internal high-pressure accumulator (15) of the connection piece and/or of the injector.
The invention relates to a nozzle for injecting fuel, comprising an injection orifice in the region of a nozzle tip for conducting fuel out of the nozzle, and a receiving orifice for receiving a nozzle needle, wherein the receiving orifice comprises a seat region for sealingly engaging a nozzle needle, in order to allow a supply of fuel to the injection orifice according to a position of the nozzle needle. The invention is characterised in that the longitudinal axis of the injection orifice is oriented towards a region of the receiving orifice that adjoins the side of the seat region remote from the nozzle tip.
The present invention relates to a seat plate (1) for an injector, comprising: a planar main body (2) having a first flat side (3) and a second flat side (4); a passage (5), which extends through the planar main body (2) from the first flat side (3) to the second flat side (4); and an indentation region (6) in the first flat side (1), which indentation region surrounds an opening of the passage (5). The seat plate (1) is characterised in that a plurality of webs (7) are formed in the first flat side (3) through the indentation region (6), the ratio of length to width of each web (7) lying in the range of 2.5 - 3.5 : 1, preferably in the range of 2.7 - 3.3 : 1, more preferably in the range of 2.9 - 3.1 : 1.
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
The invention relates to a method for producing a nozzle, in which an injection orifice of the nozzle for dispensing fuel is produced by means of laser drilling, and a cavity is formed in the nozzle along the longitudinal expansion thereof. The method is characterised in that the cavity formed in the injector is produced after the injection orifice has been produced.
The present invention relates to an injector for injecting fuel, comprising: - a seat plate having a passage throttle; - a valve insert, which is arranged on one of the flat sides of the seat plate; - a valve guide for slidably holding the valve insert; - a nozzle needle, which is arranged on the side of the valve insert opposite the seat plate; - a spring sleeve, which surrounds a portion of the nozzle needle; - a valve chamber for receiving fuel, the valve chamber being delimited by the seat plate and the valve insert and extending to the passage throttle of the seat plate; - a control chamber for receiving fuel, the control chamber being delimited by the valve insert, the spring sleeve and the nozzle needle; and - a line, which connects the control chamber and the valve chamber to each other, the line being arranged in the valve guide. The invention is distinguished, inter alia, in that the line is closed by placement of the valve insert onto the spring sleeve.
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
The invention relates to an injector (1) for injecting fuel, comprising a seat plate (2) with a throttle bore, a valve insert (4) which is arranged on one of the flat faces of the seat plate (2), a valve guide (5) for receiving the valve insert (4), a nozzle needle (6) which is arranged on the valve insert (4) side opposite the seat plate (2), a valve chamber for receiving fuel, said valve chamber (7) being delimited by the seat plate (2) and the valve insert (4) and running to the throttle bore of the seat plate (2), a control chamber (8) for receiving fuel, said control chamber (8) being delimited by the valve insert (4) and the nozzle needle (6), and a first line (9) which connects the control chamber (8) and the valve chamber (7) together. The invention is characterized in that the injector (1) has a second line (10) which connects the control chamber (8) and the valve chamber (7) together.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
70.
SEAT PLATE FOR AN INJECTOR AND METHOD FOR PRODUCING A SEAT PLATE OF THIS TYPE
The invention relates to a seat plate for an injector, comprising a plate-shaped main body having a first planar face, a second planar face and one or more peripheral end faces, an opening, which extends through the plate-shaped main body from the first planar face to the second planar face, and an insulating coating, which is arranged over the entirety of all of the peripheral end faces and, with the exception of at least one continuous region that is free of the insulating coating, is arranged over the entirety of one of the two planar faces of the plate-shaped main body, the plate-shaped main body consisting of an electrically conductive material.
The invention relates to an injector (1) for injecting fuel, comprising an injector housing (2), a movable nozzle needle that is arranged in the injector housing (2) and has a nozzle needle tip, a nozzle needle seat for accommodating the nozzle needle tip, and a mechanical switch (3), which upon a contact of the nozzle needle tip with the nozzle needle seat assumes a closed state, and upon a contact interruption assumes an open state. The injector (1) has an input line (4) and an output line (5) for controlling a movement of the nozzle needle, and the switch (3) has a first connection (6) and a second connection (7). The injector (1) is characterized in that the first connection (6) of the switch (3) is connected to the input line (4), and the second connection (6) of the switch (3) is connected to the injector housing (2).
The invention relates to a device for sensing the state of an injector, comprising an injector for injecting fuel into an engine combustion chamber, a switch, which is designed to change the switching state thereof in accordance with the state of the injector, and an evaluating unit for sensing the switching state of the switch, wherein a first switch contact of the switch is connected to an electrical input line of the injector, a second switch contact of the switch is connected to ground, and the evaluating unit is designed to carry out a first current measurement for a current flowing into the injector and into the switch and a second current measurement for the current flowing into the injector.
F02M 65/00 - Test des appareils d'injection de combustible, p. ex. test du début d'injection
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
F02D 41/20 - Circuits de sortie, p. ex. pour la commande des courants dans les bobines de commande
Device for controlling an injector, comprising: a passage space which can be closed off on one of its two sides by an armature element in order to thereby optionally separate a fluid high-pressure region from a fluid low-pressure region of the injector, a control space for applying a variable pressure to an injector component, preferably an injector needle, a valve which is arranged between another of the two sides of the passage space and the control space, a first connection which connects the high-pressure region of the injector to the passage space, and a second connection which connects the passage space to the control space, wherein the valve is configured to establish a direct connection between the high-pressure region and the control space if the pressure level in the passage space is equal to or higher than a predetermined value.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
The present invention relates to an injector (1) for injecting fuel, comprising an injector housing (2) for receiving at least one injector component, and an electromagnet (3) for controlling a valve (4) for opening and closing the injector, wherein the electromagnet (3) has a coil winding (31) and a magnetic body (32, 33), and wherein the injector housing (2) is designed in one piece with the magnetic body (32, 33).
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
The invention relates to a fuel injection valve for the intermittent injection of fuel into the combustion chamber of an internal combustion engine having a housing which has a high pressure chamber and a low pressure chamber. In addition, the fuel injection valve has a control chamber which is divided by means of a control valve into a first and a second control chamber. The control valve in turn has a valve guide and a valve insert, wherein an outflow throttle which connects the first control chamber to the second control chamber is arranged in the valve guide. According to the invention, the connection which is formed by way of the outflow throttle between the first control chamber and the second control chamber can be interrupted temporarily in a targeted manner.
F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
A controller for an injection system having a plurality of fuel injectors includes a map controller. From a desired injection value, the map controller generates a control value for actuating a fuel injector with reference to a specified map. A determination unit determines the actual injection value for at least one injection made, and an adaption unit uses results from the determination unit in order to adapt actuation of the fuel injectors. The adaption unit determines an adaption value for injector actuation from the at least one actual injection value. In engine operation, the adaption unit receives the control values generated by the map controller as input. From this input, the adaption unit generates adapted actuation values as output by applying a mathematical function to the control values generated by the map controller. The at least one adaption value is included in the first mathematical function as parameter.
A controller for a common-rail injection system includes a plurality of fuel injectors, a common fuel supply line for the fuel injectors, a high-pressure pump for supplying the common fuel supply line with fuel, and a pressure sensor for determining the pressure in the common fuel supply line. A determination unit evaluates data of the pressure sensor and, from the pressure drop caused by an injection in the common fuel supply line, determines the fuel quantity actually injected during this injection or a value derived therefrom. An adaption unit uses the results of the determination unit in order to adapt the actuation of the fuel injectors. The determination unit carries out at least one test injection, and the actually injected fuel quantity or a value derived therefrom is effected by way of the test injection or injections.
The present invention shows a high-pressure injector having the following assemblies: an injector unit (1), a drive unit (2) for driving the injector unit (1), preferably a high-pressure storage unit (3) for supplying the injector unit (1) with fuel, and a high-pressure connection (4). Provision is made in this respect that the high-pressure injector has a housing (5) in which a plurality of the named assemblies are arranged behind one another in the longitudinal direction of the injector, wherein the housing (5) completely envelops at least one of the named assemblies, in particular the drive unit (2) and/or the high-pressure storage unit (3). The high-pressure injector with the injector unit can be used in all types of internal combustion engines, preferably in diesel engines.
F02M 59/00 - Pompes spécialement adaptées à l'injection de combustible non couvertes dans les groupes
F02M 47/02 - Appareils d'injection à fonctionnement périodique avec clapets d'injection actionnés par la pression du fluide du type accumulateurs-injecteurs, c.-à-d. dans lesquels la pression du combustible dans l'accumulateur tend à ouvrir et la pression du combustible dans une autre chambre tend à fermer les clapets d'injection et comportant des moyens pour supprimer périodiquement cette pression de fermeture
F02M 55/00 - Appareils d'injection caractérisés par leurs conduits de combustible ou évents
F02M 55/02 - Conduits entre pompes d'injection et injecteurs
F02M 61/16 - Détails non couverts dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
brevets
