Having A Specific Shape, Material, Or Location Of Fuel Line Patents (Class 123/468)
  • Publication number: 20110283973
    Abstract: A fuel delivery pipe made of resin, comprises: a pipe body internally formed with a fuel passage; an inlet pipe for introducing fuel into the pipe body; a plurality of injector attaching parts for distributing the fuel introduced into the pipe body to a plurality of injectors through the fuel passage; and communication passages for communicating the fuel passage with the injector attaching parts, wherein the pipe body includes an absorbing part formed in a flat planar shape extending in a longitudinal direction of the pipe body, and the communication passages are placed so that respective centers are offset to the absorbing part side than a center of the pipe body.
    Type: Application
    Filed: March 17, 2011
    Publication date: November 24, 2011
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Kensuke NIWA, Hikaru KIKUTA, Yoji TSUZUKI
  • Patent number: 8051837
    Abstract: An intake system of an engine for a vehicle, may include a surge tank including a first flange, and an intake manifold including a second flange connected with the first flange of the surge tank, wherein the intake manifold may include a main body including a fuel rail and intake ports corresponding to cylinders, and a guide member provided on the main body to guide the surge tank coupled with the main body in a direction where the surge tank becomes separated and more distant from the fuel rail of the intake manifold when a vehicle collision occurs.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: November 8, 2011
    Assignees: Hyundai Motor Company, Kia Motor Corporation
    Inventor: Jae Seok Choi
  • Publication number: 20110265766
    Abstract: A fuel delivery pipe made of resin, comprises: a pipe body internally formed with a fuel passage; an inlet pipe for introducing fuel into the pipe body; and a plurality of injector attaching parts for distributing the fuel introduced into the pipe body to a plurality of injectors through the fuel passage, the inlet pipe having an internal diameter smaller than an internal diameter of the pipe body and being integrally formed at one end of the pipe body through a joint portion provided with a slant surface with a diameter gradually decreasing toward a root of the inlet pipe.
    Type: Application
    Filed: March 9, 2011
    Publication date: November 3, 2011
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Kensuke NIWA, Hikaru KIKUTA, Yoji TSUZUKI
  • Patent number: 8042521
    Abstract: An engine unit with a decreased height dimension and longitudinal length comprises an engine and a throttle body assembly. The throttle body assembly includes front and rear throttle bodies formed with front and rear air cylinders and throttle valves. A fuel supply pipe is arranged between central axes of the air cylinders in a longitudinal direction to extend widthwise in a lower position than upper ends of the throttle bodies. A motor for driving throttle valves is arranged between the central axes of the air cylinders in the longitudinal direction. An axis of a rotating shaft of the motor is positioned forwardly or rearwardly of a central axis of the fuel supply pipe.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: October 25, 2011
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Takayuki Yamada
  • Patent number: 8042519
    Abstract: An internal combustion engine includes a fuel system having a first fuel rail with an integrated diverter portion coupled to a high-pressure pump and separated from a common rail portion by a flow restriction device. The first fuel rail includes a pressure sensor coupled to the diverter portion at one end and a control valve coupled to the common rail portion at the other end of the same fuel rail. In V-engine embodiments, a second fuel rail communicates with the integrated diverter portion of the first fuel rail. In one embodiment, components including the first and second fuel rails, a pressure sensor, and a pressure or volume control valve are externally mounted outside the engine valve cover.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: October 25, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Anthony William Hudson, Adam John Gryglak, Kenneth G Pumford
  • Publication number: 20110253107
    Abstract: The invention relates to a method and to a system for injecting fuel into internal combustion engines, the injection taking place by way of an injection system and the fuel to be injected having an increased amount of fatty acids or fatty acid esters, particularly biodiesel. According to the invention, the components of the injection system coming into contact with the fuel are at least partially provided with a coating that has a low tendency for the agglomeration of fuel components, particularly fatty acids and fatty acid esters.
    Type: Application
    Filed: October 28, 2009
    Publication date: October 20, 2011
    Inventors: Michael Gebhard, Peter Cromme, Friedrich Boecking, Claudia Klotz, Thomas Pauer, Helmut Sommariva
  • Publication number: 20110214643
    Abstract: This disclosure relates a system for heating fuel supplied by a common rail fuel supply to an internal combustion engine. The system includes a high pressure fuel line, plural fuel injectors connected in series along the high pressure fuel line in the common rail, and a continuous low pressure passage including a heat exchanging portion in close proximity to the high pressure fuel line. A heated fluid source is operative to fluidly communicate with the continuous low pressure passage and circulate heated fluid to heat fuel present in the high pressure fuel line prior to, and during a cold start operation of the internal combustion engine. Other embodiments relate to a method of providing fuel to an internal combustion engine that includes sensing the temperature of fuel supplied to a fuel system and determining whether the sensed fuel temperature is greater than a predetermined value.
    Type: Application
    Filed: February 1, 2011
    Publication date: September 8, 2011
    Applicant: CUMMINS INTELLETUAL PROPERTIES, INC.
    Inventors: Norman C. BLIZARD, Thomas O. HAHN, Cary J. MARSTON, Damon C. SALO, Kent A. LOBSIGER
  • Publication number: 20110214642
    Abstract: A pump and rail assembly includes a plurality of quills that are compressed between quill seats on a pump and an output rail. A rail pressure control valve and a rail pressure sensor are attached to respective ends of the output rail. An inlet throttle valve is attached to a housing of the pump and rail assembly. Depending upon the application, the output rail may supply fuel to a first injection bank that includes a plurality of fuel injectors in a first common rail, and a second fuel injection bank that includes a second common rail and a plurality of fuel injectors. Different engines having different numbers of cylinders may use similar pump and rail assemblies that each include a plurality of quills, a plurality of pumping elements positioned in a pump housing and an output rail. The quills for each of the different engine applications are interchangeable but differ in number. In addition, the pumping elements of each of the different engine applications are also interchangeable but differ in number.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 8, 2011
    Applicant: CATERPILLAR INC.
    Inventors: Scott F. Shafer, Zhenyu Li
  • Publication number: 20110192378
    Abstract: A fuel injection system includes a fuel supply rail having a supply opening. A fuel injector is coupled to the fuel supply rail and configured to control the delivery of fuel from the fuel supply rail through the supply opening. A noise filtering device engages an upstream end of the fuel injector. The noise filtering device has a projecting portion extending at least partially into the supply opening along an axis, and the noise filtering device defines a restriction passage for directing fuel from the supply rail into the fuel injector. A face seal is established at a transverse face adjacent the supply opening.
    Type: Application
    Filed: April 11, 2011
    Publication date: August 11, 2011
    Inventors: Venkatesh Kannan, Michael U. Fischer, William G. Klisz, John P. Casari, Jason L. Kramer, Norbert Mueller, Markus Friedrich
  • Patent number: 7963298
    Abstract: A fluid distribution pipe includes an elongate tubular body and a spherical end form integral with the tubular body at an inlet end. The spherical fluid connection end of the fuel rail is formed by plastic deformation. A series of tools and motions is used while the tubing of the fuel rail is clamped in place to form the spherical end form at the inlet end of the tubing. The resulting spherical end form provides the necessary geometry and surface finish to provide a successful seal and flexible connection of the fuel rail with a fuel line with significant cost advantages over current prior art methods.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: June 21, 2011
    Assignee: Delphi Technologies, Inc.
    Inventor: Michael J. Colletti
  • Patent number: 7958870
    Abstract: A fuel lance assembly for an engine comprises: a fuel lance to be received in a passage provided in a cylinder head and a connection arrangement comprising an inlet adapter for securing the fuel lance within the passage. The fuel lance comprises a tubular member of constant external diameter, arranged to be received, in use, within the passage and having a first end being shaped for cooperation with a seating surface of a fuel injector of the engine, and a second end being shaped for cooperation with the inlet adapter, and being provided with a bore therethrough to define a fuel flow path between the first end and the second end of the fuel lance. The inlet adapter is provided with an attachment system for engaging a compatible attachment system of the cylinder head, and has a proximal region for receiving a high pressure fuel pipe, and wherein the inlet adapter has a distal region provided with an opening being adapted to receive the second end of the fuel lance.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: June 14, 2011
    Assignee: Delphi Technologies Holdings S.arl
    Inventors: Fabrizio A. Bonfigli, Philippe Legrand, Emmanuel Autret, Robert A. D'Aubyn, Simon H. Phillips
  • Patent number: 7942132
    Abstract: A fuel injection system includes a fuel supply rail, a fuel injector configured to control the delivery of fuel from the fuel supply rail, and a noise filtering device engaging an upstream end of the fuel injector and/or positioned at least partially within the fuel injector. The noise filtering device defines a fuel passage configured to direct fuel from the fuel supply rail into the fuel injector. The noise filtering device can include one or more of several features including a pocket, a wrap-around shape to conform to the inlet end of the fuel injector, a face-sealing portion, a compression section, and a plurality of parallel restriction passages.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: May 17, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Venkatesh Kannan, William G. Klisz, John P. Casari, Jason L. Kramer
  • Publication number: 20110108004
    Abstract: A dual fuel connector separately supplies two different fuels to fluidly isolated fuel passages within a fuel injection valve of an internal combustion engine. The dual fuel connector comprises a body with separate fluid connections to the first fuel inlet, the second fuel inlet, a first fuel rail and a second fuel rail. A first fuel passage within the body is in fluid communication with the first fuel rail and the first fuel inlet. A second fuel passage within the body is in fluid communication with the second fuel rail and the second fuel inlet, and wherein the first fuel passage is fluidly isolated from the second fuel passage. The dual fuel connector supplies two different fuels to a fuel injection valve, for engines that are not designed with a cylinder head that has internal bores that can serve as fuel rails.
    Type: Application
    Filed: December 17, 2010
    Publication date: May 12, 2011
    Inventor: Michael C. Wickstone
  • Publication number: 20110094477
    Abstract: A fuel distributor for supplying fuel to injection valves for internal combustion engines includes a hollow manifold having a plurality of branch bores disposed radially therethrough. A plurality of branch lines are operably connected with a manifold at the branch bores by adapters. The adapters have either a one-piece deep-drawn construction or a one-piece extruded construction, and include a mounting flange that conforms to the outer contour of the manifold and joins the adapter to the exterior of the manifold, and a neck portion that closely receives and securely mounts therein the end portions of the branch lines.
    Type: Application
    Filed: June 3, 2010
    Publication date: April 28, 2011
    Inventors: Markus Mehring, Michael Hoischen
  • Patent number: 7931007
    Abstract: The fuel-injection device is characterized by an especially low-noise design. The fuel-injection device includes at least one fuel injector and a fuel rail having at least one pipe connection, the fuel injector being introduced into a receiving bore of the pipe connection, and the fuel rail having a discharge opening to supply fuel to the fuel injector. Provided between the fuel injector and the fuel rail is a pressure-wave guide connecting both, in such a way such that dynamic pressure fluctuations in the fuel injector are able to be routed largely past the volume of the receiving bore of the pipe connection. The fuel-injection device is especially suitable for the direct injection of fuel into a combustion chamber of a mixture-compressing internal combustion engine having external ignition, but it is also suitable for the injection of fuel into an intake manifold.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: April 26, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Michael Fischer, Ulrich Fischer, Peter Lang
  • Patent number: 7905216
    Abstract: To provide a common rail that can prevent stress concentration from arising locally with respect to intersecting portions between a flow path and branching paths and can prevent damage such as cracks. A common rail that is used in a fuel injection system of an internal combustion engine comprises: a rail body portion that includes inside of itself a flow path along an axial direction; and branching pipe portions that are arrayed along the axial direction of the rail body portion, project from and are molded integrally with the rail body portion, and each of which includes inside of itself a branching path that branches from the flow path, wherein edges of inlets of the branching paths at intersecting portions between the flow path and the branching paths are chamfered, and, of the edges, the radius of curvature of the edges in the axial direction of the rail body portion is larger than the radius of curvature of the edges in a direction orthogonal to the axial direction of the rail body portion.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: March 15, 2011
    Assignee: Bosch Corporation
    Inventors: Yozo Kutsukake, Ryomei Yawata, Kenichi Kubo, Shogo Yarita, Kiyoshi Tateda
  • Publication number: 20110056465
    Abstract: A device for feeding fuel from a fuel tank (33) to a multi-fuel engine (12) that uses fuel in which alcohol and gasoline are mixed in an arbitrary ratio. The internal volume of a connecting line (84) provided between a fuel pressure governor (85) and a fuel injection device (50) is a volume equal to or greater than the amount of fuel consumed from startup of the engine until an oxygen sensor (88) reaches a measurement-enabling temperature.
    Type: Application
    Filed: February 18, 2009
    Publication date: March 10, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yasufumi Yokura, Atsushi Ito, Yoichi Takahashi, Tsuyoshi Izaki
  • Patent number: 7900603
    Abstract: An automobile-use high pressure fuel injection accumulator-distributor comprised of a body of an automobile-use high pressure fuel injection accumulator-distributor to which pipe attachment holders for attaching fuel distribution pipes for distributing fuel to injection nozzles at an equal pressure are joined by liquid phase diffusion bonding etc.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: March 8, 2011
    Assignees: Nippon Steel Corporation, Fukujukogyo Co., Ltd.
    Inventors: Yasushi Hasegawa, Ryuichi Honma, Yutaka Takagi
  • Publication number: 20110048380
    Abstract: A fuel delivery pipe for delivering fuel to a plurality of fuel injection valves corresponding to cylinders of an internal -combustion engine. The fuel delivery pipe includes a pipe body made of carbon steel for machine structural use and a plating film disposed on an inner surface of the pipe body. Preferably the fuel delivery pipe includes a plating film disposed on an outer surface of the pipe body.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 3, 2011
    Inventor: Eiji ISOGAI
  • Patent number: 7878174
    Abstract: In a V-type multi-cylinder engine, a first fuel supply conduit is connected to fuel-injection valves in a first throttle body group corresponding to the first bank, and a second fuel supply conduit is connected to fuel injection valves in a second throttle body group corresponding to the second bank. A pair of first and second side plates connect adjacent ends of the first and second throttle body groups together. A distance between respective throttle bodies located in two ends of the first throttle body group is set shorter than a comparable distance between the throttle bodies located in two ends of the second throttle body group. A joint part for connectively receiving the fuel hose is provided at an end of the first fuel supply conduit in a way that the joint part is arranged between the two side plates.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: February 1, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shin Nishimura, Tetsunori Iwamoto
  • Patent number: 7866300
    Abstract: In a device for the injection of fuel into the combustion chamber of an internal combustion engine, including at least one high-pressure accumulator (1), an injector (4), at least one high-pressure line (7) connecting the high-pressure accumulator (1) with the injector (4), and a resonator line (16) arranged in parallel with the high-pressure line (7) between the injector (4) and the high-pressure accumulator (1) and including a resonator throttle (17) on the side of the high-pressure accumulator, the resonator line (16) is formed by an insert piece (18) pressed into the bore of the high-pressure line and is, in particular, formed within the same.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: January 11, 2011
    Assignees: Robert Bosch GmbH, AVL List GmbH
    Inventors: Heribert Kammerstetter, Jaroslav Hlousek, Christian Graspeuntner, Markus Kathan, Christian Meisl
  • Publication number: 20100300407
    Abstract: With reference to FIG. 1, the present invention provides an internal combustion engine comprising a variable volume combustion chamber (10), an air intake passage (18), a throttle (23), a bypass passage (28) which bypasses the throttle (23) and via which air and/or recirculated exhaust gas is supplied to the intake passage (18) via a delivery nozzle (27) located downstream of the throttle (23). A fuel injector (20) delivers fuel to a mixing chamber and the bypass passage (28) is connected to the mixing chamber so that air or recirculated exhaust gas flowing through the bypass chamber entrains fuel present in the mixing chamber and a resulting mixture is delivered to the intake passage (18) via the delivery nozzle (28).
    Type: Application
    Filed: September 15, 2008
    Publication date: December 2, 2010
    Inventors: Paul Bartholomew Ravenhill, Richard Matthew Hoolahan
  • Patent number: 7827962
    Abstract: The invention relates to a fuel injection system for a multi-cylinder internal combustion engine having a first high-pressure accumulator and having a second high-pressure accumulator. The fuel injection system also has a high-pressure pump, wherein the first and the second high-pressure accumulators have a number of ports for injector supply lines corresponding to the number of cylinders of the internal combustion engine. A damping volume for damping pressure pulsations between the high-pressure accumulators and the high-pressure pump is integrated into one of the high-pressure accumulators.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: November 9, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Christoph Weizenauer, Jochen Walther, Markus Degn, Gernot Payer, Sven Voelter
  • Patent number: 7810471
    Abstract: A fuel delivery system comprises a fuel rail having an outlet, and a fuel injector cup associated with the fuel rail outlet. The fuel injector cup includes a cup portion and a ring portion. The cup portion comprises a body, and the body includes a base at a first end, an opening at a second end, and an inner cavity therein between the base and the opening. The cavity of the cup portion is configured to receive a fuel injector, and the first end of the cup portion is configured to be associated with the outlet of the fuel rail. The ring portion of the fuel injector cup is configured to be affixed to the cup portion, and the second end thereof, in particular. The ring portion is further configured to reinforce the second end of said cup portion.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: October 12, 2010
    Assignee: Millennium Industries
    Inventor: Michael J. Zdroik
  • Patent number: 7810472
    Abstract: A fuel pressure sensor/sensor mount assembly for use in a fuel injection system equipped with fuel injectors which inject fuel, as supplied from an accumulator through fuel pipes, into a multi-cylinder internal combustion engine mounted in an engine compartment of a vehicle. The assembly includes a connector unit and fuel pressure sensors. The connector unit has formed therein a plurality of communication paths each of which is to establish a connection between one of the fuel injectors and the accumulator through one of the fuel pipes. The connector unit also has formed therein sensor mounts exposed to the communication paths. Each of the fuel pressure sensors is disposed in the sensor mount to measure the pressure of the fuel in the communication path. This structure permits steps of installing the fuel pressure sensors within the engine compartment to be decreased and ensures desired measurement accuracy of the fuel pressure sensors.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: October 12, 2010
    Assignee: Denso Corporation
    Inventors: Jun Kondo, Tomoki Fujino
  • Patent number: 7806107
    Abstract: A hand-held power tool has at least one operating medium tank having at least one opening. At least one connecting conduit is arranged external to the operating medium tank. At least one connecting member is inserted into the opening, wherein the at least one connecting conduit is connected to the at least one connecting member. Securing devices that secure a rotational position of the at least one connecting member in the opening are provided.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: October 5, 2010
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jens Knau╬▓, Helmut Zimmermann, Markus Keller
  • Publication number: 20100242872
    Abstract: A motorcycle mounted with a V-shaped engine in which a front bank and a rear bank are disposed like a V-shape and a fuel pump for fuel injection is mounted. The fuel pump is driven by a camshaft of a cylinder head, and mounted on the upside of the cylinder head. The fuel pump is fitted is the cylinder head of the front bank at the back of a head pipe. A fuel chamber is provided between the fuel pump an the injectors, the fuel chamber is disposed lengthways in the vertical direction in the V-bank space K, and a lower end part is disposed facing the sides of the injectors, and connection to the injectors by fuel pipes extending from the lower end part substantially horizontally. With this configuration, the fuel pump does not obstruct other components in the motorcycle, and is protected without a special cover.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 30, 2010
    Applicant: Huntsman Advanced Materials Americas LLC
    Inventors: Toshiyuki SATO, Masaki Cho, Natsue Ogawa, Takahiro Imafuku
  • Patent number: 7802558
    Abstract: A fuel delivery system for an internal combustion engine, the system comprising a common rail fuel reservoir having a primary rail axis and comprising a plurality of outlets at spaced locations along said rail axis and a plurality of fuel injectors arranged at spaced locations with respect to said rail axis. Each injector comprises an injector inlet, said plurality of fuel injectors defining first and second groups of injectors.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: September 28, 2010
    Assignee: Delphi Technologies Holding S.arl
    Inventor: Devan Panchal
  • Publication number: 20100236525
    Abstract: An engine assembly may include an engine block, a cylinder head, a fuel injector, and a fuel rail. The engine block may define a cylinder bore. The cylinder head may be coupled to the engine block and may define an intake port, an exhaust port, and a centrally located fuel injector opening between the intake port and the exhaust port. The fuel injector opening may be in direct communication with the cylinder bore. The fuel injector may be located within the fuel injector opening. The fuel rail may overlay the fuel injector opening and may be in communication with a fuel supply and the fuel injector.
    Type: Application
    Filed: March 19, 2009
    Publication date: September 23, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Kwok Y. Ng, Joel Cowgill, Rodney K. Elnick
  • Patent number: 7775192
    Abstract: A radial piston pump has a pump housing containing pump elements and whose high-pressure conduits extending in the pump housing are embodied so as to significantly increase the permissible operating pressures.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: August 17, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Paul Wuetherich, Josef Guentert, Karl-Heinz Linek, Florian Kleer, Gerd Loesch, Peter Grabert, Nicola Cimaglia, Antonio Diaferia, Rosanna Iorizzo, Sandra Ranaldo, Giuseppe Palma
  • Patent number: 7765984
    Abstract: The fuel injection device according to the present invention is distinguished by a particularly effective sound-decoupling construction. The fuel injection device has at least one fuel injection valve, a receptacle bore for the fuel injection valve in a cylinder head, and a fuel distributor line having a fitting in which the fuel injection valve is placed in partially overlapping fashion. A connecting element is situated in the receptacle bore in such a way that the fuel injection valve is held in the connecting element in such a way that the fuel injection valve and the connecting element are held so that they do not contact any surfaces or walls of the receptacle bore of the cylinder head that do not run axially parallel to the fuel injection valve. The connecting element is attached immediately on the fitting of the fuel distributor line. The fuel injection valve is particularly well-suited for use in fuel injection systems of mixture-compressing externally ignited internal combustion engines.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: August 3, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Fuerst, Thilo Bolz, Martin Riemer, Ingo Rettig, Goekhan Guengoer
  • Patent number: 7765990
    Abstract: A device for delivering fuel having a delivery unit, a main filter with a filter housing situated downstream of the delivery unit, and a drive line for driving a suction jet pump embodied in the filter housing of the main filter. As a result, the assembly and manufacture costs of the device are reduced.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: August 3, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Hans-Peter Braun, Thomas Wieland, Petr Simek, Pavel Motka
  • Patent number: 7748364
    Abstract: The invention relates to a fuel-injection system (102), in which a rail (120) is provided for each injector between a high-pressure fuel pump (111) and said injectors (116).
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: July 6, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Hanneke, Andreas Wengert, Kurt Blank
  • Patent number: 7735473
    Abstract: A connection head structure of a high pressure fuel injection tube is provided to avoid an interference between an annular flange and an opposing part by sufficiently maintaining an tube axial direction length of the connection head and to obtain a good sealability to prevent leaking during autofrettage processing with a high pressure of not less than 300 MPa. A connection head structure of a high pressure fuel injection tube includes, on a connection end portion of a thick walled fine steel tube, a spherical seat face, an annular flange, and a circular conic face that continuously extends from the seat face, wherein a washer and a fastening nut are assembled, characterized in that when a thick walled fine steel tube has t (wall thickness)/D (outer diameter)<0.3, an tube axial direction distance L1 from a connection head end to the back face of the annular flange is from 0.38 D to 0.7 D, a spherical body radius R of the seat face is from 0.45 D to 0.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: June 15, 2010
    Assignee: Usui Kokusai Sangyo Kaisha Limited
    Inventors: Nobuo Kato, Koichi Hayashi, Shoichiro Usui
  • Patent number: 7721715
    Abstract: A common rail and injectors are connected by fuel pipes disposed outside a cylinder head cover. The common rail and the plurality of injectors integrated by the fuel pipes can be detached from a cylinder head, so that the plurality of injectors are detached from the cylinder head together with the common rail. In removing the cylinder head cover for inspection work, therefore, release of the connections of the fuel pipes to the injectors and to the common rail can be eliminated to minimize the release of the connection of piping.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: May 25, 2010
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Nobuyuki Sakagami, Koichi Takada
  • Patent number: 7699037
    Abstract: A diesel engine includes a fuel supply passage via which fuel is supplied from a fuel tank to an oil pan through a supply pump, a lubrication-system fuel supply passage via which fuel is supplied from the oil pan to engine parts to be lubricated through a lubricating oil pump, and an injection-system fuel supply passage via which fuel is supplied from the oil pan to an injection system through an injection pump.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: April 20, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Yamashita, Motoichi Murakami, Tomoyuki Ono, Hiroshi Moritani, Toshihide Ohmori
  • Patent number: 7690356
    Abstract: An internal combustion engine includes a cylinder head having a plurality of intake ports; throttle devices including a plurality of respective intake passages equipped with throttle valves therein; a plurality of fuel injection valves for injecting fuel into the corresponding intake passages; a fuel pipe adapted to supply fuel to the fuel injection valves; and a pulsation damper connected to the fuel pipe to damp fuel pressure pulsation. In the engine, a connection pipe coupled to the pulsation damper is formed between a plurality of branch portions with respect a longitudinal direction of the fuel pipe, adapted to deliver fuel from the fuel pipe to the fuel injection valves and the connection pipe is disposed to at least partially overlap the fuel injection valve as viewed from the longitudinal direction of the fuel pipe.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: April 6, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuhito Hotta, Junya Sato, Yuji Kashiwabara
  • Patent number: 7681553
    Abstract: A reactive acoustic dampener includes a nested three chambered configuration and connecting tubes that may be fully integrated into the fuel rail of a fuel injection system.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: March 23, 2010
    Assignee: Pulsco, Inc.
    Inventors: Sorin Cora, John E. Kaiser, Richard J. Serocki
  • Publication number: 20100031926
    Abstract: Embodiments of inlet manifolds for use in air-induction systems for internal combustion engines can have ports with a reduced flow area that causes the airstream within the ports to move at a relatively high velocity. Also, the ports can be shaped to focus the airstream at the fuel injectors mounted on the manifolds.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 11, 2010
    Inventor: Jerry Lee Magnuson
  • Patent number: 7603985
    Abstract: A small-diameter circular column portion having a diameter slightly smaller than that of a small-diameter hole (press-fitting hole) of an inside-outside communication hole is formed at a press-fitting end portion of a bush. A narrow annular clearance is formed between the small-diameter circular column portion and the small-diameter hole when the bush is press-fitted. Even if a press-fitting burr is produced at the press-fitting end portion during manufacturing of a common rail, the press-fitting burr is confined in the depth of the annular clearance. Even when fuel flows through the inside-outside communication hole during engine operation, movement of the fuel and the fuel flow acting on the press-fitting burr are limited in the depth of the annular clearance, inhibiting the press-fitting burr from dropping out or flowing out. Thus, a highly reliable common rail can be provided at low cost.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: October 20, 2009
    Assignee: Denso Corporation
    Inventors: Tomoaki Nagasaka, Hiroyuki Yokoya
  • Publication number: 20090241904
    Abstract: An internal combustion engine has multiple cylinders each provided with multiple injectors. A fuel supply pipe device includes multiple fuel passages, which receive fuel through multiple fuel paths and supply the fuel correspondingly to the multiple injectors. The multiple fuel passages are separated respectively from the multiple fuel passages.
    Type: Application
    Filed: March 19, 2009
    Publication date: October 1, 2009
    Applicant: DENSO CORPORATION
    Inventors: Kouichi Sugiyama, Yoshinori Yamashita, Hideaki Ichihara, Hidekazu Oomura, Hideki Suzuki
  • Patent number: 7591248
    Abstract: In a fuel injection system, a fuel tank is disposed below an electronically controlled fuel injection apparatus. A fuel reservoir chamber for supplying fuel from the fuel tank is disposed above the electronically controlled fuel injection apparatus, and the fuel stored in the fuel reservoir chamber is supplied to the electronically controlled fuel injection apparatus via a fuel supply passage. The fuel reservoir chamber and the fuel tank are connected by a first fuel return passage through which vapor is ejected and fuel in the fuel reservoir chamber overflows. A second fuel return passage for returning surplus fuel from the electronically controlled fuel injection apparatus is connected to either of the fuel reservoir chamber and the first fuel return passage at the position above the connecting position at which the fuel reservoir chamber connects with the first fuel return passage.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: September 22, 2009
    Assignee: Mikuni Corporation
    Inventors: Hiroshi Mizui, Ryoji Ehara
  • Patent number: 7587997
    Abstract: The hydrogen gas injector plug for diesel engines employs an injector plug for generating hydrogen gas from water. Pressurized hot water is pulsed into contact with a heated metallic catalyst. The pressurized hot water turns to steam and disassociates into a mixture of oxygen and hydrogen gases. The catalyst removes the oxygen gases from the gaseous mixture. The hydrogen gas expands into a combustion chamber and is burned therein, creating a pressure to drive an engine piston disposed in the combustion chamber.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: September 15, 2009
    Inventor: Thomas H. Sharpe
  • Publication number: 20090217912
    Abstract: An improved high viscosity fuel injection pressure reduction system and method is disclosed for use in an internal combustion engine. The system may include a first fuel line and a second fuel line. The first fuel line may be configured to be coupled upstream of a combustion chamber of the engine when the engine is operated with the first fuel and to provide a first pressurized volume when installed. Likewise, the second fuel line may be configured to be coupled upstream of the combustion chamber of the engine when the engine is operated with the second fuel and to provide a second pressurized volume when installed. The first and second volumes of the fuel lines may provide peak injection pressures lower than a desired pressure when the engine is operated with the first and second fuels, respectively.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Applicant: General Electric Company
    Inventors: Manoj Prakash Gokhale, Bryan Thomas Jett
  • Patent number: 7581529
    Abstract: A sensor is used to sense a property relating to each one of a plurality of different elevational locations within a vertical plane that is normal to a length of an aircraft. The vertical plane passes through the doorway of the aircraft, and at least some of the plurality of different elevational locations are disposed outside a known surface boundary of the aircraft. A variation in the sensed property between two elevational locations is detected, the variation indicative of an elevational position of the known surface boundary. An elevational position of the doorway of the aircraft is determined based upon a known relationship between the known surface boundary and the doorway, and based upon the indicated elevational position of the known surface boundary. The determined elevational position of the doorway is used to guide an aircraft engaging portion of the movable bridge into elevational alignment with the said doorway.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: September 1, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Wolff, Bernd Strauss, Hubert Stier, Helga Goller, Stefan Nuesslein, Reinhard Brendel
  • Patent number: 7571716
    Abstract: Fuel system comprising a fuel tank, a main fuel supply pump (2), a fuel filter (4) comprising a housing and a filter element, a reservoir (10) within the fuel tank and a jet pump (3) for filling said reservoir, wherein a one piece connector (1) directly connects the main fuel supply pump (2), the fuel filter (4) and the jet pump (3).
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: August 11, 2009
    Assignee: Inergy Automotive Systems Research (Societe Anonyme)
    Inventors: Larry Tipton, Paul Daniel Reuther
  • Patent number: 7562648
    Abstract: A jointless connection head for a fuel line for use in a high pressure fuel connection assembly for a high pressure fuel system and a method for forming the connection head without brazing. The connection head has an essentially spherical outer surface with a liner located in an inner cavity in the connection head. The connection head is formed by expanding the center bore of the tubular body of the fuel line at one end. The center bore is expanded by moving the sidewall of the tubular body outward. The liner is then inserted into the expanded center bore and the sidewall of the tubular body is formed over the front side of the liner.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: July 21, 2009
    Assignee: Autoform Tool & Manufacturing, Inc.
    Inventors: James Cletus Wagner, Jerry Douglas Hooser
  • Publication number: 20090159057
    Abstract: As one example, a fuel rail assembly for supplying pressurized fuel to a plurality of cylinders of an engine is provided. The fuel rail assembly includes a fuel rail housing defining an internal fuel rail volume having at least a first region and a second region; a fuel separation membrane element disposed within the fuel rail housing that segregates the first region from the second region. The membrane element can be configured to pass a first component of a fuel mixture such as an alcohol through the membrane element from the first region to the second region at a higher rate than a second component of the fuel mixture such as a hydrocarbon. The separated alcohol and hydrocarbon components can be provided to the engine in varying relative amounts based on operating conditions.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Ross Dykstra Pursifull, Mark Allen Dearth, Tom G. Leone
  • Publication number: 20090151683
    Abstract: The fluid system is intended for an oscillating-piston engine (100) which has at least two double-armed oscillating pistons (4) arranged in a spherical housing (19) and revolving together about an axis (23) of revolution arranged in the housing centre, wherein the oscillating pistons, when revolving, mutually perform reciprocating oscillating movements about an oscillation axis (24) perpendicular to the axis (23) of revolution, and guide members (5) attached to at least two pistons (4) engage in at least one guide groove (17) formed in the housing (19) and serving to control the oscillating movements. The fluid system (70) comprises at least one central feed opening (1), lying in the vicinity of an end of the axis (23) of revolution, for a fluid, continuous cavities and/or bores (10) in the pistons (4) for the fluid, and a fluid discharge on the outer side (3) of the respective piston.
    Type: Application
    Filed: February 9, 2007
    Publication date: June 18, 2009
    Applicant: PERAVES AG
    Inventor: Arnold Wagner
  • Publication number: 20090145400
    Abstract: A fuel injection system (102) is proposed, in which between a high-pressure pump (111) and the injectors (116), one pressure reservoir (120) for each injector is provided.
    Type: Application
    Filed: October 20, 2005
    Publication date: June 11, 2009
    Inventors: Juergen Hanneke, Andreas Wengert, Kurt Blank