Injection Nozzle Mounting Means Patents (Class 123/470)
  • Patent number: 11542902
    Abstract: 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.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: January 3, 2023
    Assignee: LIEBHERR-COMPONENTS DEGGENDORF GMBH
    Inventors: Richard Pirkl, Razvan-Sorin Stinghe, Wolfgang Melder, Markus Hoellbacher
  • Patent number: 11536234
    Abstract: The invention relates to an injector arrangement (1) having an injector nozzle (2) for injecting medium into a combustion chamber (3), particularly for injecting fuel into a combustion chamber (3) of an internal combustion engine, and having a sealing ring (20), which is pre-loaded in order to seal against a sealing surface (6) of a cylinder head (4), which comprises a through-hole (5), through which the injection nozzle (2) protrudes into the combustion chamber (3) and in which, in the radial direction between the injection nozzle (2) and the cylinder head (4), a heat protection sleeve (10) is arranged, one end (11) of which, facing the combustion chamber (3), is frictionally connected to the injection nozzle (2) by a radial pressing (12). In order to functionally improve the injector arrangement (1), an end (13) of the heat protection sleeve (10) furthest from the combustion chamber (3) is frictionally connected to the sealing ring (20) by an axial pressing (14).
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: December 27, 2022
    Assignee: Robert Bosch GmbH
    Inventor: Heinrich Werger
  • Patent number: 11473542
    Abstract: A bracket for clamping an injector onto a cylinder head of an internal combustion engine, comprising a clamp section, arranged for providing a clamping force onto the injector to clamp the injector onto the cylinder head; a mount section, extending from the clamp section and arranged for mounting the bracket to the cylinder head adjacent the injector; and a support section, extending from the mount section opposite the clamp section and arranged for supporting the bracket onto the cylinder head at a lever distance from the clamp section, to define the clamping force; wherein the support section comprises a plurality of support elements, each of said support elements arranged at a different lever distance, such that a selected support element from the plurality of support elements engages, in use, with the cylinder head at a selected lever distance, such that the bracket is supported on the selected support element only, to control a magnitude of the clamping force.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: October 18, 2022
    Assignee: DAF Trucks, N.V.
    Inventors: Joost Petrus Johannes Vermeeren, Bert Van Nijlen
  • Patent number: 11384672
    Abstract: A secondary air introduction device is configured to supply air into an exhaust passage of an engine to combust unburned gas contained in exhaust gas. The secondary air introduction device includes: an air introduction passage configured to introduce air into the exhaust passage; and a secondary air valve configured to be attached to an outer surface of a cylinder head of the engine and to control opening and closing of the air introduction passage. The secondary air valve is configured to be attached to an outer lateral surface of the cylinder head on one side in an axial direction of a crankshaft, and the secondary air valve includes an air introduction inlet formed in a position opposite to the outer lateral surface of the cylinder head in the axial direction of the crankshaft.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: July 12, 2022
    Inventor: Tatsuya Hatanaka
  • Patent number: 11352995
    Abstract: A piston pump as a high-pressure fuel pump of a common rail system includes: a pump cylinder; a pump piston moveably mounted in a recess of the pump cylinder, the pump piston being moveable up and down in the recess; and a leakage groove arranged in the pump cylinder in a region of the recess, the leakage groove being coupled with a leakage line configured to discharge a fuel leakage. Between the pump cylinder and the pump piston a different size pairing clearance is formed in first and second portions of the pump cylinder.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: June 7, 2022
    Assignee: MAN ENERGY SOLUTIONS SE
    Inventors: Wolfgang Wagner, Denis Kovalev, Markus Meixner, Thomas Hamann
  • Patent number: 11326569
    Abstract: A fuel injector mounting assembly in an opposed-piston engine allows for mounting of a fuel injector in a cylinder block without significantly deforming the wall of the cylinder into which the injector is configured to deliver fuel. The fuel injector mounting assembly includes a clamping arrangement to clamp the fuel injector to the cylinder block, an elongate tubular sleeve that sheathes a nozzle portion of the fuel injector, and a spanner nut attached to the elongate tubular sleeve. Clamping loads applied to retain the fuel injector in the cylinder block are controlled by the spanner nut.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 10, 2022
    Assignee: Achates Power, Inc.
    Inventor: Andrew P. Perr
  • Patent number: 11313313
    Abstract: When a rotational speed of an engine is higher than a predetermined rotational speed, a low-pressure fuel injection valve is controlled through the use of a fuel injection time based on an estimated fuel pressure in a low pressure supply pipe and a target fuel injection amount. When the rotational speed of the engine is equal to or lower than the predetermined rotational speed, the low-pressure fuel injection valve is controlled through the use of a fuel injection time based on a detected fuel pressure input from the fuel pressure sensor from the issuance of a command to activate energization of a solenoid to the start of energization of the solenoid and a target fuel injection amount.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: April 26, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masanao Idogawa, Satoshi Yoshizaki, Manami Yasunaga, Eiichiroh Kido
  • Patent number: 11255307
    Abstract: A fuel injection device includes at least one fuel injector and a receiving bore in a cylinder head as well as a receiving opening of a fuel rail for the fuel injector. The fuel injector is sealed using at least one sealing ring against the walls of the receiving opening and secured in the receiving opening with the aid of a fastening element. A compensating element is provided that acts on the fastening element to prevent bending moments as a result of an asymmetrical suspension of the fuel injector at the fastening element from acting on the fuel injector. The fuel injector device is particularly suitable for directly injecting fuel into a combustion chamber of a mixture-compressing, spark-ignition internal combustion engine.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: February 22, 2022
    Assignee: Robert Bosch GmbH
    Inventor: Ralf Kromer
  • Patent number: 11242833
    Abstract: Various embodiments include an injector cup comprising: a cup body extending along a central longitudinal axis from a first axial end to a second axial end; a ring adjoining a border of the second axial end and radially extending beyond said border; wherein a base surface of the ring faces away from the first axial end and defines a reference plane extending orthogonally to the longitudinal axis; the ring comprises two wings, wherein each wing includes a free end section extending bent away from the reference plane at a side of the reference plane facing towards the cup body, wherein the two wings are spaced from each other; and a through opening in the ring disposed between the two wings.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: February 8, 2022
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Giandomenico Serra, Gisella Di Domizio
  • Patent number: 11225916
    Abstract: Present embodiments provide an electronic fuel injection throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The bores or barrels of the throttle body may comprise one or more stackable fuel injectors. The fuel component cover may include a regulator with a housing formed integrally with the fuel component cover or alternatively, a regulator may be located remotely.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: January 18, 2022
    Assignee: Holley Performance Products, Inc.
    Inventors: Laura Shehan, Amy Gieske, Jonathan Sams, Adam Layman
  • Patent number: 11220984
    Abstract: Present embodiments provide a throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The throttle body may provide improved fuel pathways through and about the throttle body in order to move fuel to opposed side. The throttle bodies may have improved configuration of the fuel injectors. Further, the throttle body may have computer mounted on the throttle body and a notch formed in the throttle body to define a wire routing pathway from the computer to the injectors.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: January 11, 2022
    Assignee: Holley Performance Products, Inc.
    Inventors: Laura Shehan, Amy Gieske, Jonathan Sams, Adam Layman, Douglas Flynn
  • Patent number: 11174825
    Abstract: A seal configuration for a fuel injector is disclosed. The seal configuration may include a seal ring within a seal groove of the fuel injector. The seal ring may be formed from a first material. The seal configuration may include a spacer ring within the seal groove of the fuel injector. The spacer ring may be formed from a second material. An outer diameter of the spacer ring may be greater than a diameter of a fuel injector bore of the fuel injector. The spacer ring may be configured to be adjacent the seal ring within the seal groove to form a seal of a fuel injector slot of an engine head of an engine, and the fuel injector slot is configured to support the fuel injector.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: November 16, 2021
    Assignee: Caterpillar Inc.
    Inventors: Derik Warne, David Halteman, Thomas J. Crowell
  • Patent number: 11162459
    Abstract: A gas injector for injecting a gaseous fuel directly into a combustion chamber of an internal combustion engine, having a valve closing element for releasing and closing a through-opening, a first seal seat between the valve closing element and a valve body, the first seal seat being a metallic seal seat having two metallic sealing partners, and having a second seal seat between the valve closing element and a stationary component, the second seal seat having at least one elastomer seal as sealing partner, the first seal seat being situated closer to the combustion chamber than is the second seal seat.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: November 2, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Guenther Hohl, Friedrich Moser
  • Patent number: 11125191
    Abstract: Intake apparatus for an engine that includes an injector for injecting fuel into a flowstream of intake gas through the apparatus and a heater for heating intake gas passing through the apparatus. The apparatus being operable to inject fuel into the flowstream of intake gas by means of the injector such that when intake gas flows through the apparatus at a first flow rate injected fuel impinges on the heater; and when intake gas flows through the apparatus at a second flow rate greater than the first a flowpath of injected fuel is deflected by intake gas such that substantially no fuel impinges on the heater.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: September 21, 2021
    Assignee: Oval Engine LTD
    Inventor: Shaun Addy
  • Patent number: 11118995
    Abstract: A gas-tight plug is attachable by pressing it against an opening portion of a hollow component, the gas-tight plug being inserted into the opening portion using the force of pressing to be automatically aligned so that if the positions of a plurality of opening portions vary within an allowable tolerance, the axial directions of all the opening portions and the axial directions of the respective gas-tight plugs are automatically caused to coincide. A gas-tight plug includes an end portion, a contact part of a base portion end of the gas-tight plug coming into contact with a base of the pressing mechanism has a circular flat surface coaxial with the end portion, and the circular flat surface has a diameter more than 0.12 times and less than 0.2 times a total length of the gas-tight plug.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: September 14, 2021
    Assignee: SANOH INDUSTRIAL CO., LTD.
    Inventors: Mitsuharu Shiina, Miyuki Takahashi, Kazuyuki Haraga, Hideharu Shimura, Yasuyuki Kunugiza, Yorichika Takizawa
  • Patent number: 11078878
    Abstract: A fuel rail retention bracket for a fuel rail assembly having a fuel rail fluidly coupled to a fuel line includes a main body, a first connecting end configured to couple to the fuel rail, and a second connecting end configured to couple to the fuel line. The main body and first and second connecting ends are configured to prevent relative displacement between the fuel line and the fuel rail to maintain the coupling between the fuel rail and the fuel line.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: August 3, 2021
    Assignee: FCA US LLC
    Inventors: Abhijeet Thorat, Sunil Waghmare
  • Patent number: 11067189
    Abstract: The invention relates to an electromagnetic hinged armature valve device with armature means (14) which are configured for interaction with a stationary valve seat (22), are articulated such that they can be pivoted and/or folded in a housing of the valve device relative to stationary core means (16) and coil means (12) which surround them at least in sections, and which armature means (14) are configured to close or open the valve seat as a reaction to an energization of the coil means, wherein a coil carrier assembly (10) which supports a winding of the coil means and encloses the core means and a valve seat assembly (24) which configures the valve seat are configured in such a way that both can be adjusted with respect to one another for assembly of the valve seat device and can then preferably be connected non-releasably to one another, and, in a connected state or assembled state, limit and/or define a pivoting or folding stroke of the armature means which configure at least one flat side, which pivoting
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: July 20, 2021
    Assignee: ETO Magnetic GmbH
    Inventors: Oliver Thode, Viktor Raff
  • Patent number: 11053905
    Abstract: A holder is used for fastening a fuel distributor to an internal combustion engine. The holder has a base element which is connected to the fuel distributor. A slotted sleeve is provided, which is connected to the base element, and the base element is braced on the internal combustion engine via the slotted sleeve. Furthermore, a system having the fuel distributor and a plurality of holders of this type is provided.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: July 6, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Goekhan Guengoer, Herbert Blob
  • Patent number: 11047354
    Abstract: The decoupling element is for a fuel injection device, in which a low-noise configuration is implemented, and includes at least one fuel injector and a receiving borehole in a cylinder head for the fuel injector, and the decoupling element is introduced between a valve housing of the fuel injector and a wall of the receiving borehole. The decoupling element has a bowl- or cup-shaped configuration, and includes a radially outer contact area and a radially inner contact area with which the decoupling element is radially inwardly and radially outwardly placeable against the fuel injector and a shoulder of the receiving borehole. The radially inner contact area of the decoupling element has a spherically convex contact surface whose curvature has a largely constant spherical radius. The fuel injection device is particularly suited for the direct injection of fuel into a combustion chamber of a mixture-compressing spark ignition internal combustion engine.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: June 29, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Dietmar Schmieder, Corren Heimgaertner
  • Patent number: 10995704
    Abstract: A fuel distributor, for example that is usable as a fuel rail for mixture-compressing spark-ignition internal combustion engines, includes a main body, on which a plurality of high-pressure outlets are provided. The main body includes at least one dividing wall that at least largely separates an inflow region from a damping region within the main body. The main body is made up of at least two profiles that are joined to each other.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: May 4, 2021
    Assignee: Robert Bosch GmbH
    Inventor: Ralf Weber
  • Patent number: 10975819
    Abstract: A fuel injector retention arrangement includes an interior space which extends into a fuel rail socket along an axis. A retention flange of a fuel injector extends radially outward therefrom such that the retention flange is disposed within the interior space. A slot extends radially from the interior space to a fuel rail socket exterior surface and a retention groove extends radially outward from the interior space. A retainer includes a first leg extending through the slot and a second leg extending through the slot, the first leg and the second leg being connected to each other at one end by a retainer base. A lobe of the first leg extends into the retention groove and supports the retention flange and a lobe of the second leg extends into the retention groove and supports the retention flange, thereby retaining the fuel injector to the fuel rail socket.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 13, 2021
    Inventors: Ravish S. Masti, Christopher M. Cass
  • Patent number: 10969016
    Abstract: A sealing structure includes an O-ring and a back-up ring. An outer diameter of the back-up ring is smaller than an inner diameter of a mounting portion of a delivery pipe. An inner diameter of the back-up ring is gradually increased from a pressure-receiving surface toward a seating surface, and is greater than an outer diameter of a fuel introducing portion of a fuel injection valve. In a section of the back-up ring, an edge angle defined between the pressure-receiving surface and an inner circumferential surface is smaller than a gap angle defined between the pressure-receiving surface and a tapered outer surface of a tapered portion in the fuel introducing portion. A dimension of the seating surface in the back-up ring is shorter than a dimension in an end surface.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: April 6, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Ochi, Michito Shirakawa
  • Patent number: 10961967
    Abstract: Embodiments are directed to fuel injectors for internal combustion engines (e.g. engines with reciprocating pistons and with compression-ignition or spark-ignition, Wankel engines, turbines, jets, rockets, and the like) and more particularly to improved nozzle configurations for use as part of such fuel injectors. Other embodiments are directed to enabling fabrication technology that can provide for formation of nozzles with complex configurations and particularly for technologies that form structures via multiple layers of selectively deposited material or in combination with fabrication from a plurality of layers where critical layers are planarized before attaching additional layers thereto or forming additional layers thereon. Other embodiments are directed to methods and apparatus for integrating such nozzles with injector bodies.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: March 30, 2021
    Assignee: Microfabrica Inc.
    Inventors: Gregory P. Schmitz, Ming Ting Wu, Uri Frodis, Eli Baldwin, Gabriel Jacobsohn
  • Patent number: 10934986
    Abstract: A fuel delivery system for an engine includes a fuel rail cup, a fuel injector, and a retainer clip. The fuel rail cup extends along a longitudinal axis and defines an opening that extends radially outward from the longitudinal axis. The fuel injector has an upper end that is disposed within the opening such that the cup and fuel injector are aligned along the longitudinal axis. The retainer clip has a central body and at least one prong that protrudes upward from the central body. The central body engages the fuel injector and the at least one prong engages the fuel rail cup such that the clip inhibits axial movement of the fuel injector relative to the fuel rail cup along the longitudinal axis and such that the clip inhibits rotation of the fuel injector relative to the fuel rail cup about the longitudinal axis.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 2, 2021
    Assignees: DENSO International America, Inc., DENSO Corporation
    Inventors: Garrett Stewart, Steve Roseborsky
  • Patent number: 10934984
    Abstract: A fuel delivery system for an engine includes a fuel rail, a fuel injector, and a clip. The fuel rail has a cup that defines an opening. The fuel injector has an upper end that is disposed within the opening such that the cup and fuel injector are axially aligned. The clip is secured to the fuel injector and engages the cup to orient the fuel injector radially relative to the cup. The clip has a tab that extends outward relative to the fuel injector. The tab defines a central orifice that is configured to receive a fastener. The fastener is configured to mount a wire harness.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 2, 2021
    Assignees: DENSO International America, Inc., DENSO Corporation
    Inventors: Steve Roseborsky, Garrett Stewart
  • Patent number: 10830195
    Abstract: Present embodiments provide a throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The throttle body may provide improved fuel pathways through and about the throttle body in order to move fuel to opposed side. The throttle bodies may have improved configuration of the fuel injectors. Further, the throttle body may have computer mounted on the throttle body and a notch formed in the throttle body to define a wire routing pathway from the computer to the injectors.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: November 10, 2020
    Assignee: Holley Performance Products, Inc.
    Inventors: Laura Shehan, Amy Gieske, Jonathan Sams, Adam Layman, Douglas Flynn
  • Patent number: 10801448
    Abstract: An engine component includes an intake manifold of stratified layers defining a plurality of runners each having a gas outlet leading to a cylinder head, and a plenum including partial walls forming channels radiating from a common gas inlet extending into a gooseneck conduit having an incorporated throttle body. The gooseneck conduit transitions into the channels and runners such that there is no seal between the gooseneck, plenum, and runners.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: October 13, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Christopher Donald Wicks
  • Patent number: 10794344
    Abstract: A sealing cartridge (18) for an injector of an internal combustion engine seals a medium-filled first chamber (6) and a medium-filled second chamber (7). The chambers (6, 7) are between an injector (1) that is movable axially along an injector axis (9) and a housing (2) receives the injector (1). The sealing cartridge (18) is configured to receive the injector (1). The sealing cartridge (18) has at least one seal (11; 20) disposed in a receptacle housing (19) of the sealing cartridge (18). The receptacle housing (19) has a first housing portion (29) configured to receive the seal (11; 20) on the shell face (31) of the receptacle housing (19), and a second housing portion (30) configured to receive the seal (11; 20) on an internal face (25). An injector assembly (38) also is provided and has an injector (1) that is received in the sealing cartridge (18).
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: October 6, 2020
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Albrecht Reustle, Gerd Kissner
  • Patent number: 10767613
    Abstract: A fuel injector includes a nozzle body configured to be inserted into a fuel injector receiving bore of the internal combustion engine along a nozzle body axis; a valve housing held in fixed relationship to the nozzle body; and a first locating pin and a second locating pin each extending from the valve housing. The first locating pin extends from a first locating pin fixed end which is fixed to the valve housing to a first locating pin free end. The second locating pin extends from a second locating pin fixed end which is fixed to the valve housing to a second locating pin free end. The first locating pin and the second locating pin elastically deform when inserted into the bore, thereby preventing rotational movement of the fuel injector about the nozzle body axis.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: September 8, 2020
    Assignee: DELPHIA TECHNOLOGIES IP LIMITED
    Inventors: David A. Chinnici, Charles W. Braun, Gary J. De Angelis, Norbert Raimann
  • Patent number: 10738747
    Abstract: An injector for injecting fuel, which is introduced from a fuel rail, into an engine to supply the fuel thereto is provided. In particular, the injector includes a housing, an electromagnetic generation unit accommodated in the housing and formed to generate an electromagnetic field when electric power is applied thereto, a core inserted into a fuel-rail-side end of a bobbin to form a magnetic circuit using the generated electromagnetic field, a lead pipe inserted into an engine-side end of the bobbin to form the magnetic circuit by coupling with the core, a molding unit formed to enclose the electromagnetic generation unit and an outer peripheral surface of the core to block introduction of moisture, and a cover coupled to the outer peripheral surface of the core to constitute the magnetic circuit together with the core.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: August 11, 2020
    Assignee: HYUNDAI KEFICO CORPORATION
    Inventors: Kang Hun Lee, Bong Woo Ryu, Joon Hee Park
  • Patent number: 10677138
    Abstract: A heat shield for a reductant delivery unit (RDU), the RDU including a fluid injector with a fluid inlet and a fluid outlet, and a clamp flange for attachment to a mounting boss of a vehicle exhaust pipe. The heat shield includes a first portion which is attached to the fluid injector so as to at least partly cover the fluid outlet thereof. The first portion serves as a thermal barrier for the fluid injector and a mechanical barrier for preventing particles in the vehicle exhaust pipe from contacting the fluid injector when the RDU is attached to the vehicle exhaust pipe. The heat shield further includes a second portion which extends radially outwardly from the first portion for sealing the attachment between the clamp flange and the mounting boss of the vehicle exhaust pipe when the RDU is attached thereto.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 9, 2020
    Assignee: Vitesco Technologies USA, LLC
    Inventors: Robert Wayne McFarland, Keith Aaron Shaw, Christopher Michael Caulkins
  • Patent number: 10648424
    Abstract: A press-fit sleeve for sealing and cooling a component projecting through a fire deck opening in the cylinder head of an internal combustion engine is described. The press-fit sleeve includes a connecting point at a first end of the press-fit sleeve, said connecting point being designed for press fitting into an indentation at an end of the fire deck opening that faces away from a combustion chamber. Furthermore, the press-fit sleeve includes a radially inwardly protruding step at a second end of the press-fit sleeve lying opposite the first end. Between the first end and the second end, the press-fit sleeve includes a lateral surface which is closed in a fluid-tight manner and is or can be brought into contact with a water jacket surrounding the press-fit sleeve.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: May 12, 2020
    Assignee: MAN TRUCK & BUS AG
    Inventor: Dimitri Schlee
  • Patent number: 10641222
    Abstract: Various embodiments include a fuel injector assembly for an internal combustion engine comprising: an injector cup; a securing device to fasten the injector cup to the engine; wherein a first end of the injector cup remote from the fuel inlet port comprises an outwardly extending flange; a connector abutting the flange, wherein the injector cup and the fuel injector are secured together through the connector; and a fastening bracket supported on the flange, wherein the injector cup and the connector are secured through the fastening bracket by a fastening device. The fastening device comprises a U-shaped clip with a first arm disposed between a clamping face of the fastening device and the fastening bracket and a second arm generally parallel to the first arm disposed on the opposite side of the fastening bracket.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 5, 2020
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Giandomenico Serra, Davide Matteini
  • Patent number: 10641224
    Abstract: A decoupling element for a fuel-injection device has a low-noise and pivotable construction. The fuel-injection device includes at least a fuel injector and a receiving bore in a cylinder head for the fuel injector as well as the decoupling element between a valve housing of the fuel injector and a wall of the receiving bore. The decoupling element is in the form of a ring, in particular a closed ring, which has a lower end face that sits on a shoulder of the receiving bore, and which has an upper end face that rises conically from radially outside toward radially inside and is in intimate contact with a spherically curved shoulder area of the valve housing of the fuel injector. The fuel-injection device is particularly suitable for the direct injection of fuel into a combustion chamber of a mixture-compressing combustion engine having externally supplied ignition.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: May 5, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Martin Scheffel, Wilhelm Reinhardt
  • Patent number: 10605213
    Abstract: An injector combustion shield assembly comprising a bore configured to receive a fuel injector, the bore including a fluid opening in fluid communication with a fluid jacket and a fluid outlet positioned within an annular wall of the bore; and a valve positioned between the fluid jacket and the fluid opening and configured to selectively permit a fluid from the fluid jacket to enter the bore, the valve being movable between an open configuration to permit fluid flow from the fluid jacket into the bore via the fluid opening and a closed configuration to prevent fluid flow from the fluid jacket into the bore.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: March 31, 2020
    Assignee: Cummins Inc.
    Inventors: Lester L. Peters, David L. Buchanan, Timothy P. Lutz, David B. Snyder, Derek G. Weiler, Clayton R. Westerfeld, Julie Anne Colin, Akintomide K. Akinola, Joseph Eric Parlow, Steven J. Kolhouse
  • Patent number: 10550812
    Abstract: A fuel injector for the injection of fuel, which includes a fuel supply element for supplying the fuel, a current bar which extends at least partially parallel to the fuel supply element, and an extrusion coat, which surrounds the fuel supply element and the current bar, the extrusion coat encompassing a longitudinal rib that extends in the axial direction of the fuel injector and is disposed on the fuel injector opposite the current bar.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: February 4, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Sebastian Wieschollek
  • Patent number: 10519914
    Abstract: A fuel injection system for an engine of a vehicle may include an injector nozzle mounted in an injector bore formed in a cylinder head of the engine, wherein a tip portion of the injector nozzle is protrudingly formed into a combustion chamber, and having a positioning system configured to adjust an axial position of the injector nozzle in the injector bore. The invention further provides a method of operating the fuel injection system.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 31, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Stephan Fitzner, Stephan Kolk
  • Patent number: 10495008
    Abstract: The invention relates to a combustion gas injector assembly (1) comprising a combustion gas injector (3) having groups (11a,b,c) of combustion gas nozzle openings distributed around the periphery, each group having at least one combustion gas nozzle opening (13), a combustion gas nozzle valve member (9a,b,c) of the combustion gas injector (3), which member can be controlled in the open position and closed position, is associated with each group (11a,b,c) of combustion gas nozzle openings, in order to selectively discharge the combustion gas via the at least one combustion gas nozzle opening (13). The combustion gas injector assembly (1) is configured to control the combustion gas nozzle valve members (9a,b,c) successively with a predetermined time offset (T) into the closed position.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: December 3, 2019
    Assignee: L'Orange GMBH
    Inventors: Ingmar Berger, Hans-Joachim Koch, Michael Nitsche, Steffen Siebert
  • Patent number: 10480868
    Abstract: A tube assembly that may be for a fuel nozzle of a fuel system of a gas turbine engine may have a first tube defining a first flowpath along a centerline, a second tube generally spaced radially outward from the first tube with a first void located between and defined by the first and second tubes, and a support structure located in the first void and extending between the first and second tubes. The support structure is constructed and arranged to minimize or eliminate thermal conduction between the tubes. The entire assembly may be additive manufactured as one unitary piece. One example of a method of operation may include designed-for breakage of the structural support due to thermal stresses thereby further minimizing thermal conduction between tubes.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: November 19, 2019
    Assignee: United Technologies Corporation
    Inventors: Joe Ott, John J. Rup, Jr., Stanley J. Funk, Dennis M. Moura, Lexia Kironn, Roger O. Coffey
  • Patent number: 10471554
    Abstract: A method for remanufacturing or repairing a cylinder head having a bore configured to receive a fuel injector comprises machining a portion of a surface forming the bore to remove imperfections, inserting a repair component into the bore proximate the machined portion of the bore, and spraying material into the bore proximate the machined portion and the repair component, thereby holding the component into place.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: November 12, 2019
    Assignee: Caterpillar Inc.
    Inventors: Curtis John Graham, Robert E. Sharp, Daniel Thomas Cavanaugh, Robert Louis Brockman
  • Patent number: 10473078
    Abstract: Methods and systems are provided for mounting a fuel pump to a cylinder head of an engine. In one example, a mounting system may comprise: an engine fuel pump mounted directly to a cylinder head cap positioned underneath a cam cover, the cap including a raised portion having a first and a second cap mounting boss, and a main opening for directly receiving the fuel pump, wherein each of the first and second cap mounting bosses couple to a flange formed on a bottom portion of the fuel pump. In this way, the fuel pump may be directly mounted to the cylinder head cap to simplify assembly, minimize fuel leakage and reduce pump vibration.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: November 12, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Kevin Joseph Kochanski, David Matthew Gasior, Claude Weston Bailey, III
  • Patent number: 10450975
    Abstract: A cycle-by-cycle skip-fire fuel-injection technique for pilot-ignited engines involve skip-firing selected combustion chambers when a low load condition is determined and modulating the fuel delivery to maintain the requisite engine power, while reducing pilot fuel quantity to a predetermined minimum. Overall pilot fuel consumption is thereby reduced.
    Type: Grant
    Filed: June 13, 2015
    Date of Patent: October 22, 2019
    Assignee: WESTPORT POWER INC.
    Inventors: Alain M. J. Touchette, Jeffrey J. Thompson
  • Patent number: 10443553
    Abstract: The coupling device comprises a holding fixture being designed to be mechanically coupled to the fuel rail and comprising a through hole extending between a first surface and a second surface, the second surface opposing the first surface and being arranged and designed to face the cylinder head. Furthermore the coupling device comprises a fastening element being designed to be fixedly coupled to the cylinder head. The fastening element comprises a head portion and a shank portion. The head portion faces the first surface of the holding fixture and the shank portion is being partially arranged in the through hole and is designed to be in engagement with the cylinder head. In addition the coupling device comprises a retaining element being arranged inside the through hole, being coupled with the holding fixture, comprising in a given latch area a cross-section restriction and being in engagement with the shank portion at least in this latch area. The retaining element is formed as a one-piece unit.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: October 15, 2019
    Assignee: CONTINENTAL AUTOMATIVE GMBH
    Inventors: Giandomenico Serra, Francesco Mennella, Andrea Puccini, Gisella Di Domizio, Daniel Marc
  • Patent number: 10415525
    Abstract: A tool for removing fuel injectors from a head assembly is disclosed that is comprised of a bolt, a dual-tined fork, and a plate that fit into the existing hold-down bolt holes in a head assembly and grooves in the fuel injectors.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: September 17, 2019
    Inventor: Jeffrey Del Rossa
  • Patent number: 10364769
    Abstract: Systems and methods utilize a controller configured to perform a diagnostic routine for a combustion seal provided between a gasoline direct injection (GDI) fuel injector and a combustion chamber of a cylinder of a GDI engine. The diagnostic routine comprises determining one of (i) a period for the injector coil current to reach a peak current and (ii) a resistance of the injector coil while the injector coil current is saturated, determining whether the determined period or the determined injector coil resistance is greater than a respective threshold indicative of a predetermined temperature of the injector coil, and when the determined period or the determined injector coil resistance is greater than its respective threshold, detecting a combustion seal leak fault. Based on the combustion seal leak fault, the controller may modify operation of the engine to prevent potential heat damage to the engine.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: July 30, 2019
    Assignee: FCA US LLC
    Inventors: Louai A Faied, Alan G Falkowski
  • Patent number: 10316809
    Abstract: A fuel injection system designed for an internal combustion engine includes at least one fuel injection nozzle which, by way of a cylindrical shell body, is inserted at least in regions into a bore of a cylinder head and which, by way of a nozzle tip, feeds fuel to a combustion chamber between the cylinder head and a reciprocating piston. The fuel injection nozzle is held in position on a housing section of the internal combustion engine with the interposition of a holding device and, for example, a fastening bolt. The holding device braces a first end region of the fuel injection nozzle against a bore stop within the bore in the cylinder head. To optimize this fuel injection system, the holding device has, outside the bore, a fixing bushing to which the shell body is fixed axially and radially by way of a radial insert element.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: June 11, 2019
    Assignee: Neander Motors AG
    Inventors: Erik Madsen, Rupert Baindl
  • Patent number: 10309361
    Abstract: A control valve for controlling the movement of a needle of a fuel injector includes a coil which is attached to a housing of the injector, which housing engages with an armature which can be moved between an open position and a closed position. The armature includes a magnetic plate, through the center of which a rod, which forms a valve piston, extends perpendicularly to the plate to a remote end. The piston slides into a bore in the injector housing, the movements of the armature and of the piston opening or closing channels in which pressurized fuel flows. The armature is provided with a device for quickly discharging the fuel which is captive between the coil and the plate.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: June 4, 2019
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventor: Thierry Thibault
  • Patent number: 10280885
    Abstract: Provided is a fuel injection valve which achieves both atomization of a fluid spray and improvement of the degree of freedom in design of a spray shape, a spray direction, etc. According to a fuel injection valve (1) of the present invention, at least one of injection holes is a switching-spray injection hole (12B), which corresponds to an injected spray, directions of a long axis and a short axis of a switching spray (32A) changing due to an axis-switching phenomenon to deform the switching spray (32A) at downstream. The plurality of injection holes other than the switching-spray injection hole (12B) are coalescent-spray injection holes (12A) for forming a coalescent spray (40) formed by coalescence under Coanda effect exerted between single sprays (30A, 31A). The coalescent spray (40) and the switching spray (32A) coalesce under the Coanda effect to form an integrated spray (50).
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: May 7, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Mamoru Sumida
  • Patent number: 10197033
    Abstract: A fuel-injection device has a low-noise and pivotable structure. The fuel-injection device includes at least a fuel injector and a receiving bore in a cylinder head for the fuel-injector, and a decoupling element between a valve housing of the fuel injector and a wall of the receiving bore. The decoupling element is captively situated on the fuel injector prior to its installation in the receiving bore in that a securing ring is mounted below the decoupling element at the outer periphery of the fuel injector and the securing ring is a closed plastic ring. The fuel-injection device is particularly suited for the direct injection of fuel into a combustion chamber of a mixture-compressing internal combustion engine having externally supplied ignition.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: February 5, 2019
    Assignee: ROBERT BOSCH GMBH
    Inventors: Johann Bayer, Wilhelm Reinhardt
  • Patent number: 10151286
    Abstract: A clip—for a fuel injection valve includes a load transmitting member—and a fitting member. The load transmitting member is formed from a single wire material and includes a contacting portion, which contacts a contactable surface formed in the fuel injection valve, a depressible portion, which is depressible in a downward direction by a pressing surface formed in a fuel supply conduit, and a spring portion, which is formed between one end of the contacting portion and the depressible portion and is resiliently deformable by a load. The fitting member-is formed separately from the load transmitting member and is connected to the load transmitting member on a side of the contacting portion, which is opposite from the spring portion. The fitting member is fittable to a fittable portion of the fuel supply conduit.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: December 11, 2018
    Assignee: DENSO CORPORATION
    Inventor: Hiromu Suzuki