Having A Specific Shape, Material, Or Location Of Fuel Line Patents (Class 123/468)
  • Publication number: 20090107459
    Abstract: A injection conversion body with internal injector compartment for converting a normally carbureted internal combustion engine to a fuel injected engine while concealing the fuel delivery system. The original engine carburetor is removed. The plenum assembly is mated to the original engine intake manifold and a suitable throttle body is mated to the intake apertures which are oriented to permit installation without modification to the vehicle body work or relocation of other engine components. Air drawn through the throttle body is mixed with fuel from fuel injectors inside the plenum as it is directed to and exits the fuel air exhaust opening and enters the engine intake manifold. Interchangeable restriction plates are provided for insertion into the plenum fuel air exhaust opening to tune the fuel/air mixing characteristics to match the needs of the engine with which it is mated. Fuel is delivered to the fuel injectors through an internal, concealed fuel rail and fuel lines.
    Type: Application
    Filed: October 27, 2008
    Publication date: April 30, 2009
    Inventor: Thomas Ross, JR.
  • Patent number: 7523741
    Abstract: Embodiments include a fuel rail and method for making the fuel rail. Embodiments of the fuel rail include an elongate lining having a surface defining a lumen, a pressure port having a lumen in fluid communication with the lumen of the elongate lining, and a thermoset composite body surrounding at least a portion of the elongate lining and the pressure port.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: April 28, 2009
    Assignee: Kurz - Kasch, Inc.
    Inventors: George E. Kochanowski, Stephen H. Purvines, Robert G. Farrell
  • Patent number: 7516734
    Abstract: A bush incorporated in a common rail is formed with a smallest diameter orifice having a small inner diameter and an adjacent orifice having an inner diameter larger than that of the smallest diameter orifice on an inner peripheral face of the bush. A press-fitted portion, which is press-fitted into an inside-outside communication hole, and a non-press-fitted portion, which has a smaller outer diameter than the press-fitted portion, are formed on an outer peripheral face of the bush. The smallest diameter orifice and the press-fitted portion are deviated from each other in an axial direction of the bush to prevent an overlap in a radial direction of the bush. Thus, even if the bush is tightly press-fitted into the inside-outside communication hole, decrease of the inner diameter of the smallest diameter orifice can be averted.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: April 14, 2009
    Assignee: Denso Corporation
    Inventors: Takashi Tominaga, Tadashi Nishiwaki
  • Patent number: 7516735
    Abstract: A fuel delivery system comprises a fuel rail having an inlet, an outlet and a receptor associated with the outlet. The system further comprises a fuel injector. The inlet of the injector is configured for communication with the outlet of the fuel rail, and the injector outlet is configured for communication with a combustion chamber of an engine. The system still further includes a first feature associated with on one of the fuel rail and the injector, and a second feature associated with the other of the fuel rail and injector. The first and second features cooperate to form a seal between the injector and the fuel rail, and to maintain the axial alignment of the components.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: April 14, 2009
    Assignee: Millennium Industries
    Inventors: Robert Doherty, Daniel Scott Edelman
  • Patent number: 7509943
    Abstract: A fuel-injection system (1, 1?, 1?) for an internal-combustion engine (2), of the type provided with compressor mechanism (4) for making available the fuel at a high pressure to an storage volume (7), and a plurality of injectors (8, 8?) fluidically connected to the storage volume (7) for taking in the fuel from the storage volume (7) and injecting it into respective combustion chambers (12) of the engine (2). The compressor mechanism (4) advantageously generates at least two distinct delivery lines (14), which are connected to respective distinct fractions (16) of the storage volume (7).
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: March 31, 2009
    Assignee: C.R.F. Societa Consortile per Azioni
    Inventors: Mario Ricco, Sisto Luigi De Matthaeis, Annunziata Anna Satriano, Onofrio De Michele
  • Publication number: 20090071435
    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: Application
    Filed: November 10, 2008
    Publication date: March 19, 2009
    Inventors: Akira Yamashita, Motoichi Murakami, Tomoyuki Ono, Hiroshi Moritani, Toshihide Ohmori
  • Publication number: 20090064972
    Abstract: A fuel injection nozzle for directly injecting fuel into a cylinder of an internal combustion engine is inserted in a connecting pipe extending from a fuel rail and is fixed to the connecting pipe by fastening member. The fuel injection nozzle has a sealing part for sealing a fuel passage to prevent fuel leakage, and a contact part in contact with the fastening member. The contact part is softer than the fastening member, and the contact part undergoes plastic deformation when a bending moment that bends the axis of the fuel injection nozzle acts on the fuel injection nozzle.
    Type: Application
    Filed: August 18, 2008
    Publication date: March 12, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Motoyuki ABE, Masahiko Hayatani, Tohru Ishikawa, Takehiko Kowatari, Noriyuki Maekawa, Yasuo Namaizawa, Yusuke Irino
  • Patent number: 7497202
    Abstract: A damper element for damping pressure pulsations in a liquid includes a first side including a first wall portion at least partially defining a chamber containing a gas and a second side including a second wall portion at least partially defining the gas-containing chamber. The second side is overlappingly joined with the first side such that the first and second wall portions combine to define substantially an entire cross-section of the gas-containing chamber. Both the first and second wall portions are convexly curved outwardly away from the gas-containing chamber.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: March 3, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Derek Cvengros, Dewey M. Sims, Jr., Hursha Shankaranarayan
  • Patent number: 7493892
    Abstract: A self-damping fuel rail for a fuel-injected internal combustion engine includes an elongated tube defining a wall and having a longitudinal axis. The wall defines a fuel passageway and has a first wall portion movable between a first position bowed inwardly toward the longitudinal axis when the self damping fuel rail is in a non-operative state, and a second position moved outwardly away from the longitudinal axis when the self-damping fuel rail is in an operative state. The self-damping fuel rail also includes at least one fuel outlet configured to facilitate communication between the fuel passageway and a fuel injector.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: February 24, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Dewey McKinley Sims, Jr., Hursha Shankaranarayan
  • Patent number: 7475674
    Abstract: The invention relates to a leakage connection for an injector, which inject fuel into a combustion chamber of an internal combustion engine. The leakage connection is configured as one piece with an injector component. In addition, a leakage nipple is integrated into the leakage connection, for attaching a leakage return line.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: January 13, 2009
    Assignee: Siemens Aktiengesellschaft
    Inventors: Dieter Marksteiner, Klaus RĂ¼bling
  • Patent number: 7469680
    Abstract: A fluid system for an engine is disclosed. The fluid system has a manifold with a plurality ports, and a retention device configured to constrain the manifold relative to the engine in only a single translational direction. The fluid system also has a plurality of tubes configured to communicate fluid from the ports with the engine and to constrain the manifold in the remaining translational directions.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: December 30, 2008
    Assignee: Caterpillar Inc.
    Inventors: Jack A. Merchant, Paul F. Olsen
  • Publication number: 20080302335
    Abstract: There is provided an injector assembly having two or more oxidizer manifolds and/or two or more fuel manifolds for delivery of liquid propellants to a combustion chamber such that combustion instability is reduced or eliminated during throttling. Delivery of the oxidizer to the oxidizer manifolds is controlled by an oxidizer valve, which may comprise an integral valve. The oxidizer passes from the oxidizer manifolds into the oxidizer element and then into the combustion chamber. The multiple oxidizer manifolds allow the oxidizer to be provided through selective openings of the oxidizer element thus reducing the change in pressure drop across the oxidizer element to thereby reduce or eliminate combustion instability and other problems. Additionally, the injector assembly may also include a lift-off seal or a filler fluid source to fill any temporarily unused oxidizer manifolds with an oxidizer or filler fluid.
    Type: Application
    Filed: September 28, 2005
    Publication date: December 11, 2008
    Inventors: James J. Fang, Steven C. Fisher, Robert J. Jensen
  • Patent number: 7461635
    Abstract: The present invention has an object to provide a vertical multi-cylinder diesel engine capable of conveniently protecting a common rail and its parts. On the assumption that a width direction of a cylinder block (2) is taken as a horizontal direction, when arranging the common rail (3) horizontally lateral of the cylinder block (2), there is disposed above the common rail (3) a passage forming means (23) which is the alternative of an intake air distributing means (5) and an exhaust air converging means (22). The passage forming means (23) above the common rail (3) may be formed into a box-shaped structure with no branch pipe. Further, an engine cooling fan (4) may be arranged in front of the common rail (3) so as to pass cooling air below the passage forming means (23) above the common rail (3).
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: December 9, 2008
    Assignee: Kubota Corporation
    Inventors: Akira Maegoya, Takatoshi Imai
  • Patent number: 7461637
    Abstract: A diesel engine (1) includes a fuel supply passage (4) via which fuel is supplied from a fuel tank (2) to an oil pan (3) through a supply pump (6), a lubrication-system fuel supply passage (8) via which fuel is supplied from the oil pan (3) to engine parts (7) to be lubricated through a lubricating oil pump (10), and an injection-system fuel supply passage (13) via which fuel is supplied from the oil pan (3) to an injection system (12) through an injection pump (12).
    Type: Grant
    Filed: December 26, 2005
    Date of Patent: December 9, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Yamashita, Motoichi Murakami, Tomoyuki Ono, Hiroshi Moritani, Toshihide Ohmori
  • Patent number: 7455050
    Abstract: An improved O-ring retainer arrangement for retaining an O-ring on a fuel tube of a fuel injector. An overmolded hard plastic ring is disposed on the cylindrical outer surface of the fuel tube. The end of the fuel tube is radially flared to retain the ring on the tube, the radial extent of the flare being less than or equal to the radial thickness of the ring such that the flare cannot come into contact with the bore of a fuel rail socket. The ring is formed such that axial compressive forces exerted on the ring are outside the fuel tube body and preferably are directly opposed, thus exerting no toroidal torque on the ring. The ring is free to move axially on the fuel tube surface. In one aspect of the invention, the ring can move freely along only a limited region on the fuel tube.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: November 25, 2008
    Assignee: Delphi Technologies, Inc.
    Inventor: Wenbin Xu
  • Patent number: 7448362
    Abstract: A control valve module (14?) for a fuel injector assembly (10) has a conduit arrangement where a high-pressure passage (108) has a first portion (110) extending linearly between an annulus (106) surrounding the control valve cylinder (42) and an upper edge (34), and a second portion (112) extending linearly between the annulus (106) and a lower edge (35?).
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: November 11, 2008
    Assignee: Robert Bosch GmbH
    Inventor: Klaus Seelbach
  • Publication number: 20080271712
    Abstract: Carbon deposits on engine components can negatively affect engine performance. An engine of the present disclosure includes at least one carbon deposit resistant engine component attached to an engine housing. The engine component includes at least one relatively high surface tension surface that is a non-contact wear surface and to which a relatively low surface tension coating is attached. The relatively low surface tension coating has a surface tension at least one of equal to and less than 30 dyne/cm.
    Type: Application
    Filed: May 27, 2008
    Publication date: November 6, 2008
    Applicant: CATERPILLAR INC.
    Inventors: Hind M. Abi-Akar, Xiangyang Jiang, Jorge R. Agama, Mark W. Jarrett, Kurtis C. Kelley
  • Patent number: 7418947
    Abstract: A direct injection valve in a cylinder head (1) consists of a cylindrical housing comprising the following components: a valve (16) for dosing a fluid by means of a valve needle (15), an actuator (2) for generating a stroke acting on the valve needle, and a fluid supply to the valve (16). In order to minimise the heat transfer from the cylinder head (1) to the injection valve, an air gap (3) surrounds the housing of the injection valve, maintaining the housing and the cylinder head at a distance from each other.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: September 2, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bernhard Gottlieb, Andreas Kappel, Tim Schwebel
  • Publication number: 20080202472
    Abstract: A fuel rail mounting bracket for use in a fuel charging assembly of a vehicle engine is disclosed. The fuel rail mounting bracket may include a bolt support portion mounted to the vehicle engine; a transition zone extending from the bolt support portion; and a support hoop portion extending from the transition zone and supportably mounted around the fuel rail, the support hoop portion having a main wall thickness and including an upper fracture recess adjacent to the transition zone that has an upper fracture wall thickness that is less than the main wall thickness, and a lower fracture recess, adjacent to the transition zone and spaced from the upper fracture recess, having a lower fracture wall thickness that is less than the main wall thickness.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Inventors: Mark Whatley, Andy Kathiresan, Jim Gavriles, Tedd LaPorte, Gerard N. Panasuk
  • Patent number: 7415968
    Abstract: An engine includes a fuel rail and fuel delivery devices, such as fuel injectors, that deliver fuel to corresponding cylinder assemblies. The use of the fuel rail and fuel injectors allows unused fuel to be purged from the engine at the end of the engine's operating cycle, thereby minimizing the creation of fuel vapor within the engine. The fuel rail is assembled from modular fluid conduit adaptors and fluid conduits. With such modularity, a custom fuel rail can be assembled for any size engine. The use of the fluid conduit adaptors and fluid conduits allows motion of the cylinder assemblies relative to the fuel rail during operation to minimize the application of potentially damaging forces on the fuel rail.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: August 26, 2008
    Assignee: Lycoming Engines, a division of Avco Corporation
    Inventors: Scott E. Matas, Steven J. Bowes
  • Publication number: 20080190397
    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: Application
    Filed: March 13, 2006
    Publication date: August 14, 2008
    Applicant: INERGY AUTO. SYSTEMS RESEARCH (SOCIETE ANONYME)
    Inventors: Larry Tipton, Paul Daniel Reuther
  • Patent number: 7406936
    Abstract: An accumulator fuel system for an internal combustion engine having a plurality of engine cylinders, includes an accumulator fuel volume (12; 112) for supplying high pressure fuel to one or more of a plurality of injectors (10) of the fuel system, each of which is arranged to supply fuel to an associated one of the engine cylinders. The accumulator fuel volume (12; 112) is integrated within an engine component, where the engine component provides a purpose other than that solely of an accumulator volume for storing high pressure fuel. For example, the accumulator volume (12; 112) is defined in one embodiment within a rocker shaft (32) of the engine and in another embodiment within the engine cylinder head (16).
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: August 5, 2008
    Assignee: Delphi Technologies, Inc.
    Inventors: Andrew Knight, Andy Male
  • Patent number: 7398767
    Abstract: Any specific member for fixation is omitted from a fuel injection device so that number of parts is reduced and the fuel injection device is constructed at a reasonable cost. The fuel injection device for use in an internal combustion engine is provided with a fuel distribution pipe 1, plural connecting pipe members 4, and plural fuel injection valves 2, and each of the fuel injection valves 2 is inserted into a connecting pipe member 4. A band-shaped protrusion 7 extends in the radial direction from a flange portion of the connecting pipe member 4 and further extends in parallel to the axis of the fuel injection valve 2. The band-shaped protrusion 7 is provided with a fitting hole 8, and each fuel injection valve 2 is provided with a protrusion 9 fitted into the fitting hole 8.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: July 15, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuji Kondo, Mikihiko Suzuki
  • Publication number: 20080156297
    Abstract: The hydrogen gas injector plug for generating hydrogen gas from ambient air drawn into the piston chamber of an engine includes an array of nozzles fabricated from a metal or a mixture of metals. When heated to a pre-determined temperature, the metallic nozzles react with atmospheric water to disassociate hydrogen gas. The hydrogen gas is injected from the nozzles into the piston chamber and mixed with air. An ignition device ignites the mixture of hydrogen and air so that it burns to power the piston in a conventional manner. The metallic nozzle is heated via a copper conductor connected to a source of electric current.
    Type: Application
    Filed: September 24, 2007
    Publication date: July 3, 2008
    Inventor: Thomas H. Sharpe
  • Patent number: 7387102
    Abstract: The invention relates to a cast part for an internal combustion engine, said part being a cylinder crankcase, which has at least one guide duct that leads a fluid medium to a required location. Said guide duct is provided in the form of a tube and is embedded inside the part when the latter is cast. The aim of the invention is to reduce the complexity of production and the costs of the cylinder crankcase. To this end, the fluid medium is provided in the form of oil and the at least one guide duct is provided in the form of an oil supply leading to a crankshaft bearing and/or to a camshaft bearing that are to be lubricated or to other required location.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: June 17, 2008
    Assignee: Fritz Winter Eisengiesserei GmbH & Co. KG
    Inventor: Horst Henkel
  • Publication number: 20080127934
    Abstract: A fuel injection system for an internal combustion engine has a lubricity improver supply for adding a lubricity improver to low-viscosity fuel supplied to a fuel injection apparatus of the engine. A controller controls the lubricity improver supply so that the amount of the lubricity improver added to fuel at the inlet to the fuel injection apparatus is increased as engine rotation speed, engine load, or injection pressure is increased. With the system, wear or sticking of the plunger can be prevented even when low-viscosity fuel is used by improving lubrication conditions to secure necessary lubrication condition for the sliding part in accordance with engine operation conditions, fuel temperature and viscosity.
    Type: Application
    Filed: January 25, 2008
    Publication date: June 5, 2008
    Inventor: Takashi Kaneko
  • Patent number: 7377263
    Abstract: An internal combustion engine includes an injection system that is configured as a high-pressure accumulator system in which the number of parts is small and the injection system can be easily assembled. The connecting fittings for the connection of the high-pressure lines are laterally offset with respect to the appertaining injection valves and in that the absolute magnitude of said offset is identical for all injection valves of a row of cylinders of the internal combustion engine.
    Type: Grant
    Filed: March 6, 2004
    Date of Patent: May 27, 2008
    Assignee: Deutz Aktiengesellschaft
    Inventors: Kai-Uwe Muench, Rolf Preuss, Joerg Schlueter
  • Patent number: 7370639
    Abstract: A supercharged diesel engine having at least one charged air conduit for distributing charged air and having a first chamber for conveying the charged air. Air inlet openings of the cylinder head are connected to the first chamber in a gastight manner. The charged air conduit has at least one second chamber, which is separate from the first chamber and has a removable lid. The fuel reservoir is secured in the second chamber, which is provided with a first passage allowing the high pressure fuel line and the fuel reservoir to communicate with one another. The second chamber has at least one second passage, facing the cylinder head, allowing the fuel injection lines and fuel connections on the cylinder head to communicate with one another. With the lid in place, the second chamber encloses the fuel reservoir, the fuel injection lines and the fuel connections such that in the event of leakage at any of them, leaking fuel flows into the second chamber.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: May 13, 2008
    Assignee: MAN Nutzfahrzeuge AG
    Inventors: Ulrich Jung, Udo Fakler
  • Patent number: 7350507
    Abstract: An injector assembly is disclosed for mounting within a mounting member, which includes a first mounting aperture that defines an axis, and a second mounting aperture that defines an axis and an inner surface. The axis of the first mounting aperture extends transverse to the axis of the second mounting aperture. The injector assembly includes an inlet connector that can be disposed within the first mounting aperture. The injector assembly further includes an injection valve member that can be disposed within the second mounting aperture. The injection valve member includes a fuel inlet that defines an axis. The injection valve member is in fluid communication with the inlet connector via the fuel inlet. Furthermore, the injector assembly includes an abutment member operable to supply a supporting force from the second mounting aperture to the injection valve member. The axis of the fuel inlet approximately intersects the abutment member.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: April 1, 2008
    Assignee: Denso Corporation
    Inventor: Nobuyuki Yahara
  • Patent number: 7347187
    Abstract: It is described an internal combustion engine, preferably an engine that operates according to the Diesel cycle, comprising at least one engine head (1) with a valve cover (2) and at least one fuel distribution line (4), associated with the engine head (1) through at least one through aperture (8) located in the valve cover (2). The present invention further relates to an engine head (1), particularly for use in an internal combustion engine, and to a fuel distribution line (4).
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: March 25, 2008
    Assignee: International Industria Automotiva Da America Do Sul Ltda.
    Inventor: Rinaldo Perini
  • Patent number: 7318418
    Abstract: A common rail a diesel engine includes a branching connection body firmly fixed on common rail body by friction welding. A fronting face of the branching connection body to be fixed on the common rail body by friction welding is in the shape of a cone whose center part is slightly projected and whose peripheral part is a gentle cone face.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: January 15, 2008
    Assignee: Usui Kokusai Sangyo Kaisha Limited
    Inventors: Shoichiro Usui, Masayoshi Usui, Yasuji Sakamoto, Eiji Watanabe, Yasuaki Hashimoto
  • Patent number: 7305968
    Abstract: A fuel-injection system (1, 1?, 1?) for an internal-combustion engine (2), of the type provided with compressor mechanism (4) for making available the fuel at a high pressure to an storage volume (7), and a plurality of injectors (8, 8?) fluidically connected to the storage volume (7) for taking in the fuel from the storage volume (7) and injecting it into respective combustion chambers (12) of the engine (2). The compressor mechanism (4) advantageously generates at least two distinct delivery lines (14), which are connected to respective distinct fractions (16) of the storage volume (7).
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: December 11, 2007
    Assignee: C.R.F. Societa Consortile per Azioni
    Inventors: Mario Ricco, Sisto Luigi De Matthaeis, Annunziata Anna Satriano, Onofrio De Michele
  • Patent number: 7305969
    Abstract: In order to reduce the size of a tubular rail for a high-pressure fluid, the rail is obtained from a hollow body with an external diameter and an internal diameter, and has two terminal portions, each provided with an external milling to favour gripping thereof. The millings have an external diameter such as to ensure, together with a cylindrical portion of a coaxial element, a radial strength at least equal to that of the hollow body. Made between the hollow body and each cylindrical portion is a front connection. For this purpose, the cylindrical portion has a plane front surface, whilst each terminal portion has an internal milling with an internal diameter greater than the internal diameter of the hollow body so as to house the cylindrical portion and so as to form an annular shoulder. A washer of softer material is set between the annular shoulder and the front surface.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: December 11, 2007
    Assignee: C.R.F. Societa Consortile Per Azioni
    Inventors: Mario Ricco, Sisto Luigi De Matthaeis, Raffaele Ricco, Alfonso Di Meo
  • Patent number: 7302936
    Abstract: A line system (1) for fluids having volatile components, which comprises at least one fluid line (2,3,4), each having a separate inlet (10) and outlet (11), the fluid lines (2,3,4) being enclosed by a first line wall (12) and extending jointly over a section (A) of the line system (1) close-fitting to one another, but being separated from one another at least by the first line wall (12) over the entire length of the fluid lines (2,3,4). The line system (1) is implemented as a plastic hollow profile at least over the section (A) and comprises a further fluid line (8), which is enclosed by a second line wall (13), and comprises one or more line chambers (8?,8??), which are at least partially separated from one another by support webs (7), whose totality at least essentially encloses the fluid lines (2,3,4). In addition, the first and second line walls (12,13) and the support webs (7) of the plastic hollow profile being implemented from the same polymer material.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: December 4, 2007
    Assignee: EMS-CHEMIE AG
    Inventors: Alex Stolarz, Ralph Kettl, Andre Sturzel
  • Patent number: 7290533
    Abstract: A saddle-ride type vehicle provided with an air cleaner at the rear side of an engine and a fuel tank at the upper side of the engine, and a heat shield panel disposed between the fuel tank and the engine. A fuel feed pipe, one end of which is connected to a fuel pump located at the front side of the engine, extends toward the upper part of the heat shield panel and is routed on the upper side of the heat shield panel and connected to an injector which forms a fuel intake. This improves the degree of freedom in the design around an engine and facilitates the layout of a fuel feed pipe that connects a fuel pump to a fuel intake at the front and rear of the engine so that the fuel feed pipe is hardly affected by the heat of the engine.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: November 6, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuichiro Tsuruta, Toru Iwadate, Yoshiaki Noda
  • Patent number: 7281521
    Abstract: The sealing element has a ring consisting of an elastic material. The ring consists of a continuous support section, a first sealing lip, formed thereon for sealing the injector casing and a second sealing lip for sealing the cylinder head. The sealing lips project substantially inwards in a radial direction and together with the support section form a continuous groove of the ring. An alignment member is at least partially positioned in the groove of the ring, the alignment member is configured such that when a valve stem portion of the injector casing is positioned through the ring, the alignment member physically contacts the valve stem portion at two or more distinct locations to fix the ring non-positively around the valve stem portion such that the ring is prevented from physically contacting the valve stem portion.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: October 16, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Neumaier
  • Patent number: 7278403
    Abstract: The invention relates to an internal-combustion engine having at least two cylinder bank rows, which are preferably oriented in a V-shape. An air intake system is arranged between two cylinder bank rows, and a fuel supply system is at least partially arranged below the air intake system. A central supply line is provided for the fuel supply, from whose two longitudinal sides individual fuel lines are branched off and connected to fuel injectors fastened in the cylinder head.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: October 9, 2007
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Frank Dieterle
  • Patent number: 7278400
    Abstract: A juncture and method for changing direction of fuel flow in a high pressure fuel injection system such as a common rail and/or a fuel pump, the juncture comprising a body, a first passage formed in the body having a first diameter and a longitudinal axis extending therethrough, the first passage including a groove positioned along a portion of the longitudinal axis, and a second passage formed in the body having a second diameter, a central axis extending therethrough, and an opening, the opening of the second passage being provided in the groove of the first passage to allow fluidic communication between the second passage and the first passage so that stresses at the juncture caused by high pressure fuel changing direction of flow is reduced. The juncture is made from a bottom poured ingot cast alloy steel.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: October 9, 2007
    Assignee: Cummins Inc.
    Inventors: James E Denton, Anthony A Shaull, Scott R Simmons, Matthew B State, Todd M Wieland, Steven E Ferdon
  • Patent number: 7275521
    Abstract: A joint structure connects a diverging branch pipe to a fuel rail for an internal combustion engine. The fuel rail is stainless steel or steel with rust prevention processing on at least the inner face. The diverging branch pipe is a double pipe with inner and outer pipes. The inner pipe has excellent rust preventing ability with respect to fuel on its inner face in comparison with the outer face of the outer pipe. The inner and outer pipes are connected by a nut for fastening through a joint fitting. A connecting seal portion of the diverging branch pipe and the joint fitting has rust preventing ability equal to that of the inner circumferential face of the diverging branch pipe. An entire liquid contact portion, including a seal face of the diverging branch pipe with respect to the fuel is covered with the inner pipe.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: October 2, 2007
    Assignee: Usui Kokusai Sangyo Kaisha Limited
    Inventors: Masayoshi Usui, Kikuo Asada, Yasuaki Hashimoto, Hiroyuki Nishizawa, Iichiro Seino
  • Patent number: 7263975
    Abstract: An improved fuel rail for delivering fuel to a fuel injector for an internal combustion engine is provided that reduces the weight of the fuel injection system, greatly reduces manufacturing costs by eliminating expensive manufacturing methods, such as brazing, high heat welding, post plating, blow molding, and extrusion, and enhances low-cost, low-energy methods for attachment of fuel system components to the fuel rail. The improved fuel rail includes an tubular body defining a fluid chamber and having an inlet through which fuel enters the fluid chamber and a fuel injector port in fluid communication with the fluid chamber. The port is configured to receive the fuel injector. The tubular body is formed as a laminate having an inner metallic layer and an outer polymeric layer. The inner metallic layer may comprise aluminum and the outer polymeric layer may comprise nylon. Plastic or metal components can be attached to the laminated tubular body while providing a fluid tight, pressurized joint.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: September 4, 2007
    Assignee: Dana Corporation
    Inventors: David C. Stieler, Dale L. Sleep
  • Patent number: 7258108
    Abstract: A fuel injection rail has a rail body formed by joining together a first body member having the shape of a trough and a second body member having the shape of a flat plate. Edges of the side walls of the first and the second body members are joined in folded seams by folding the edges of the first body member so as to crimp the edges of the second body member, and the folded seams are brazed.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: August 21, 2007
    Assignee: Sanoh Kogyo Kabushiki Kaisha
    Inventor: Kazuyuki Haraga
  • Patent number: 7255092
    Abstract: A flange 10 is provided for a fuel pump module for a vehicle. The flange includes a first portion 12 of acetal material and a second portion 14 of an acid resistant material provided directly over at least certain regions of the first portion 12.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: August 14, 2007
    Assignee: Siemens VDO Automotive Corporation
    Inventor: Jeffery John Milton
  • Patent number: 7252071
    Abstract: Embodiments include a fuel rail and method for making the fuel rail. Embodiments of the fuel rail include an elongate tubular body with a wall defining a lumen, the elongate tubular body formed with a thermoset composite material, and a pressure port having a lumen in fluid communication with the lumen of the elongate tubular body.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: August 7, 2007
    Assignee: Delaware Capital Formation, Inc.
    Inventors: George E. Kochanowski, Sam A. Sked, Robert G. Farrell
  • Patent number: 7249593
    Abstract: A fuel-injection system (1, 1?, 1?, 1??) for an internal-combustion engine (2), of the type provided with compressor mechanism (4) for making available the fuel at a high pressure to an storage volume (7), and a plurality of injectors (8, 8?, 8??) fluidically connected to the storage volume (7) for taking in the fuel from the storage volume (7) and injecting it into respective combustion chambers (12) of the engine (2). The storage volume (7) is advantageously split into a plurality of distinct elementary storage volumes (9, 9?, 9a, 9b) fluidically connected to one another.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: July 31, 2007
    Assignee: C.R.F. Societa Consortile per Azioni
    Inventors: Mario Ricco, Sisto Luigi De Matthaeis, Annunziata Anna Satriano, Antonio Gravina, Adriano Gorgoglione
  • Patent number: 7249592
    Abstract: An object of the invention is to provide a fuel injector delivery pipe which does not require a tool for holding an upper part and lower part together, and thereby eliminate the process of attaching and removing the tool, and increases the efficiency of the operation. Furthermore, in order to achieve this object, the fuel injector delivery pipe comprises an upper part 2 with an inverted substantially U-shaped vertical cross-section in the longitudinal direction formed with a top wall 2a and two side walls 2b, 2b, and also comprises a lower part 3 with a substantially U-shaped vertical cross-section in the longitudinal direction with a bottom wall 3a and two side walls 3b, 3b. Locking parts 5, 10 are formed in both side walls 2b, 2b of the upper part 2 and in both side walls 3b, 3b of the lower part 3 respectively for locking together the walls, and the locking parts 5, 10 are locked together to temporarily lock the upper part 2 and the lower part 3 together while the parts are integrated by brazing.
    Type: Grant
    Filed: December 26, 2003
    Date of Patent: July 31, 2007
    Assignee: Sanoh Industrial Co., Ltd.
    Inventor: Yasuhiro Yaguchi
  • Patent number: 7246601
    Abstract: A ring-shaped connecting portion is formed on a seat surface side of a pipe connector. The connecting portion is tapered so that thickness thereof gradually reduces toward a tip end thereof. A protrusion is formed on the tip end of the connecting portion. A ring-shaped groove is formed on a flat outer peripheral surface of a common rail. By fitting the protrusion into the groove, the connector can be positioned to a predetermined position of the common rail. In this structure, current can be concentrated to the protrusion and current density can be increased. As a result, sufficient bonding strength can be attained.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: July 24, 2007
    Assignee: DENSO Corporation
    Inventors: Akiyoshi Yamamoto, Yoshinori Ohmi, Jun Kondo, Keizo Jyoko
  • Patent number: 7219657
    Abstract: A fuel routing structure for use in a vehicle having a V-type engine is provided. The structure has fewer parts, is compact, and facilitates ease of assembly and maintenance for a vehicle where fuel injection valves are attached to an intake manifold, which contains an intake passage communicating with intake ports of a pair of cylinder banks. Each fuel injection valve is attached to an upper part of the intake manifold, so that center lines of the fuel injection valves corresponding to both banks are crossed at an intersection over the intake manifold when a vehicle is viewed from the side. A fuel rail is provided with a fuel passage pipe, the axis of which is arranged in the vicinity of the intersection of the center lines of the fuel injection valves. The axis of the fuel passage pipe may be parallel to the crankshaft and may extend linearly and connected to all the fuel injection valves.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: May 22, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuhito Hotta, Hiraku Minato
  • Patent number: 7213576
    Abstract: A high pressure fuel injection tube includes a connection head with a seat face in a spherical shape. A ring-like flange is spaced from the seat face in an axial direction. A conical portion is formed in the interval between the ring-like flange and the seat face. An undercut bent recess groove with a ring-like shape and a deep depth is formed on the conical portion. Thus, a shallow smooth ring-like recess groove is formed on an inner side of the connection head, and a compressive residual stress is present at an inner peripheral face of the ring-like groove.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: May 8, 2007
    Assignee: Usui Kokusai Sangyo Kaisha Limited
    Inventor: Munekatsu Furugen
  • Patent number: 7213577
    Abstract: The invention relates to a method for producing a fuel accumulator line and a fuel accumulator line comprising prestressed connection pieces. The connection pieces are mounted onto the fuel accumulator line with a prestress, by crimping, or by a temporal expansion and/or a temporal contraction of the fuel accumulator line. The connection pieces connect a line to the fuel accumulator line. The prestressing of the connection pieces allows pressure to be exerted on the fuel accumulator line, thus increasing the compressive strength.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: May 8, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Hummel, Georg Weigl
  • Patent number: 7213575
    Abstract: A fuel manifold for the direct injection of fuel into an internal combustion engine comprising a head provided with a number of cylinders, a number of injectors, each of which is connected to the fuel manifold and is adapted directly to inject the fuel into a respective cylinder, and an intake manifold, which is connected to the head in order to supply fresh air to the cylinders, the fuel manifold being formed by a single monolithic body which is made from thixotropic aluminum by means of a pressure die casting process and comprises a supply duct adapted to distribute the fuel to the injectors, and a flange disposed laterally to the supply duct, the flange being adapted to be secured by a plurality of screws to the head of the engine and comprising a number of coupling members each of which is adapted to bring a respective cylinder into communication with the intake manifold.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: May 8, 2007
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Renzo Moschini, Gianluca Mattogno, Flavio Giovannini, Stefano Poggi, Mario Casari