With Fuel Pump Patents (Class 123/495)
  • Patent number: 11879455
    Abstract: A cam ring of a supply pump revolves around a camshaft without rotating. A tappet reciprocates in a direction perpendicular to the camshaft in response to revolution of the cam ring such that the tappet slides along a cam ring sliding surface. A plunger reciprocates together with the tappet to pressurize and deliver fuel. The cam ring sliding surface is shaped in a convex form that has a curved contour line which is non-circular. A height of an inside of the cam ring sliding surface is higher than a height of a periphery of the cam ring sliding surface. Specifically, an ellipsoidal surface portion is formed at the cam ring sliding surface, and an axial direction of a major axis of the ellipsoidal surface portion is set to coincide with a direction perpendicular to a sliding direction of the cam ring sliding surface.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: January 23, 2024
    Assignee: DENSO CORPORATION
    Inventors: Toshiaki Hijima, Bansei Kobayashi
  • Patent number: 11852094
    Abstract: A fuel pressure control system for a fuel supply system of an injector of an engine includes: a booster pump for increasing a high-pressure system fuel pressure; a pressure reducing valve for reducing the high-pressure system fuel pressure; and a control device for controlling the booster pump and the pressure reducing valve. The control device includes a valve opening necessity determination unit for the pressure reducing valve. The control device executes a valve opening control for opening the pressure reducing valve. The control device further includes a restriction execution unit for performing a valve opening restriction control in the valve opening control to prevent a pressure exceeding a predetermined target portion threshold pressure from being applied to a target portion.
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: December 26, 2023
    Assignee: DENSO CORPORATION
    Inventors: Takahiro Kondo, Ryohei Sano
  • Patent number: 11808233
    Abstract: An engine having a linkage assembly, the linkage assembly having a governor lever, a governor shaft, and a throttle link. The governor lever couples the governor shaft to the throttle link. The governor lever is configured to adjust the relative position between the throttle link and the governor shaft. The governor lever has a primary arm and a secondary arm, the primary arm being movable with respect to the secondary arm. The primary arm and secondary arm are secured via a fastener which prevents relative motion between the primary and secondary arms.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: November 7, 2023
    Inventor: Andrew J. Sugden
  • Patent number: 11698050
    Abstract: Systems and methods for supplying lubricating oil to a high-pressure fuel pump of an engine fuel system. In one embodiment, a system may include a plurality of channels routing lubricating oil to a gear system and drive shaft of a pump without flowing an entire volume of the lubricating oil through a cavity of the drive shaft.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: July 11, 2023
    Assignee: Powerhouse Engine Solutions Switzerland IP Holding GmbH
    Inventors: John Patrick Dowell, Ganesasubramanian Murugesan
  • Patent number: 11680548
    Abstract: A fuel module for pumping and filtration of a fuel in a fuel system includes a flow housing, and each of an electrically powered pump, a first cartridge filter, and a second cartridge filter in sealed, direct engagement with the flow housing. The fuel module is applied in a low pressure fuel circuit feeding fuel to a high pressure fuel circuit for pressurization to an injection pressure. Electronic closed loop control techniques for the pump are also disclosed.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: June 20, 2023
    Assignee: Caterpillar Inc.
    Inventors: Ye Tian, Quinton Marcus Burear, Michael Taylor McKinley, Stephan Donald Roozenboom
  • Patent number: 11661649
    Abstract: Disclosed are a component for a fuel injector and a method for coating the same. The component for the fuel injector may include a base material, a bonding layer laminated on the base material, a support layer laminated on the outer surface of the bonding layer, and an NbSiCN functional layer including an NbCN layer and an SiCN layer and alternately laminated on the outer surface of the support layer, thereby reducing friction, high hardness, shock resistance, heat resistance, and durability of the component for the fuel injector.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 30, 2023
    Assignee: Hyundai Kefico Corporation
    Inventors: Han Su Park, Heon Joon Park, Sung Chul Cha
  • Patent number: 11644001
    Abstract: A direct injection fuel injection valve includes a valve casing housing therein a valve member and fitted into an engine main body of an internal combustion engine. The casing includes: a tubular case member; and a valve seat member joined to one end part thereof and having a valve seat and a fuel injection hole. The valve member can be in contact with and detached from the valve seat. The injection hole is opened and closed by cooperation between the valve seat and the valve member. At least part of the valve seat member is exposed to a combustion chamber of the engine main body. Fuel can be injected into the combustion chamber via the injection hole. The valve seat member is formed from a martensitic stainless steel having a PI value of at least 19, containing at least N, and having a C content of no greater than 0.3%.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: May 9, 2023
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kenichi Tsunota, Kenichi Uehara
  • Patent number: 11492985
    Abstract: A generator and off-board fuel delivery system is disclosed. The generator is configured to operate on one or more fuels, including on a gaseous fuel supplied from a pressurized fuel source through a gaseous fuel line. A fuel regulator system is located off board the generator and is configured to regulate the gaseous fuel supplied from the pressurized fuel source in a first stage, with the gaseous fuel regulated down to a reduced pressure in the first stage. A second stage of the fuel regulator system regulates the reduced pressure gaseous fuel, with the reduced pressure gaseous fuel from the first stage regulated down to a desired pressure in the second stage for delivery through the gaseous fuel line to operate the generator.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: November 8, 2022
    Assignee: Champion Power Equipment, Inc.
    Inventors: Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison
  • Patent number: 11459991
    Abstract: A high-pressure pump includes a pressurizing chamber forming portion including a cylindrical inner peripheral wall that defines a pressurizing chamber, a plunger, a housing including a housing outer peripheral wall, a valve member, an electromagnetic driving unit, a discharge passage portion, and a fixed portion that is connected to the housing. The fixed portion has multiple bolt holes. The multiple bolt holes are arranged radially outward of the housing outer peripheral wall in a circumferential direction when viewed along a direction of an axis of the cylindrical inner peripheral wall. The high-pressure pump is virtually divided into a first region and a second region by a virtual surface on which axes of adjacent ones of the multiple bolt holes and an axis of the cylindrical inner peripheral wall extend. Both the electromagnetic driving unit and the discharge passage portion are located in the first region or the second region.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: October 4, 2022
    Assignee: DENSO CORPORATION
    Inventors: Keigo Ohata, Shinichiro Koshimoto, Yoshihito Suzuki
  • Patent number: 11268485
    Abstract: A fuel pump for an internal combustion engine comprising a barrel having a longitudinal axis that spans between a proximal end and a distal end and a central bore therein. A plunger is disposed at least partially in the central bore and is configured to move along the longitudinal axis. An annular seal assembly is arranged around the circumference of the plunger wherein the annular seal assembly includes a seal retainer housing and a first seal and the seal retainer housing also retains the proximal end of the barrel thereon to form a second seal wherein the first and the second seals reduce the fuel to oil transfer rate and the oil to fuel transfer rate. The plunger and barrel are configured to be removed from and re-assembled with the annular seal assembly to enable service of these parts and the fuel pump.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: March 8, 2022
    Assignee: Cummins Inc.
    Inventors: Roberto Medina Munoz, Matthew B. State, Samuel David Griffith Magnuson, Thomas M. Yeager
  • Patent number: 11168648
    Abstract: Methods and systems are provided for a fuel system of a hybrid vehicle. In one example, a system may include a fuel tank selectively fluidly coupled to a fuel vapor canister via a first conduit that includes a fuel tank isolation valve and via a second conduit that includes a tank pressure control valve and a pump. In one example, the pump is a vacuum pump.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: November 9, 2021
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 11111866
    Abstract: An engine device including an intake manifold configured to supply air into a cylinder; an exhaust manifold configured to output exhaust gas from the cylinder; a gas injector which mixes a gaseous fuel with the air supplied from the intake manifold; and a main fuel injection valve configured to inject a liquid fuel into the cylinder for combustion. At the time of switching from a gas mode in which the gaseous fuel is supplied into the cylinder to a diesel mode in which the liquid fuel is supplied into the cylinder, a supply-start timing of the liquid fuel is delayed relative to a supply-stop timing of the gaseous fuel.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: September 7, 2021
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventors: Ryoichi Hagiwara, Kazuteru Toshinaga, Masayoshi Doi, Taishi Murakami, Tatsuro Ohsara, Osamu Yamagishi
  • Patent number: 10961961
    Abstract: A control method of a fuel supply pump includes moving an anchor in the closing valve direction by passing a maximum drive current through the solenoid, and thereafter holding the anchor at a closing valve position by passing a holding current for keeping a closing valve state through the solenoid. The holding current is smaller than the maximum drive current. A current value of a first drive current is smaller than a current value of the holding current. A current value of a second drive current overlaps a range of the current value of the holding current. A current value of a third driving current is equal to or more than the current value of the holding current.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: March 30, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Masanori Watanabe, Shunsuke Aritomi, Kenichiro Tokuo, Masayuki Suganami
  • Patent number: 10940406
    Abstract: An apparatus and method for automated decantation of multi-phase fluid is disclosed. The apparatus for two phase fluid comprises a fluid line assembly, a floating marker, a sensor, an actuator assembly and a control board. The fluid line is attached to a reservoir containing the multi-phase fluid, comprising an inlet and two outlets. A three-way valve is disposed between the inlet and the two outlets. The floating marker is disposed within a cylindrical frame mounted within the reservoir. The selective density of the float marker is selected between the density values of two fluids in the multi-phase fluid. The float-marker floats between the two fluid phases due to the density of the float marker and fluid. The actuator assembly, configured to operate inlets and outlets of the fluid line. The number of outlets, sensor, and floating marker increases with the number of phases of fluid.
    Type: Grant
    Filed: September 15, 2019
    Date of Patent: March 9, 2021
    Inventor: Mohammad Ghadyani
  • Patent number: 10910913
    Abstract: An object of the present invention is to provide a mechanism for disengaging a hub from an output shaft of a motor, which is convenient to propel the scooter/wheelchair manually. For this purpose, the present invention employs the following technical solution.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: February 2, 2021
    Assignee: ZHEJIANG LINIX MOTOR CO., LTD.
    Inventor: Haiqiang Zhao
  • Patent number: 10865754
    Abstract: A nozzle assembly for a fuel injector includes a nozzle body and a needle tip positioned within the nozzle body. The needle check includes a terminal end surface positioned in spaced, facing relation to a sac surface of the nozzle body, to form a sac cavity. The terminal end surface and sac surface each have spherical shapes, and are centered about a longitudinal axis of the nozzle body. Structures of the terminal end surface and the sac surface are such that a clearance between them is nowhere less than along a line segment between centers of the terminal end surface and the sac surface, the sac cavity has a reduced volume, and wall thickness at the nozzle tip is sufficient for improved fracture resistance.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: December 15, 2020
    Assignee: Progress Rail Services Corporation
    Inventors: Rolando Lopez, Randall Gunderson
  • Patent number: 10519911
    Abstract: A fuel pump for an internal combustion engine is provided comprising a barrel including a central bore having a longitudinal axis, a plunger disposed partially in the central bore and movable along the longitudinal axis, a spring retainer, a first coil spring having a proximal end in contact with a first section of the barrel and a distal end in contact with the spring retainer to urge the spring retainer into engagement with a tappet assembly, an extender element coupled to the plunger, and a second coil spring having a proximal end in contact with a second section of the barrel and a distal end in contact with the extender element to urge the plunger toward the spring retainer, wherein the extender element includes a counter-bore to couple the extender element to the plunger.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: December 31, 2019
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Lester L. Peters, Brian M. Watson, Roberto M. Munoz
  • Patent number: 10508612
    Abstract: Methods and systems are provided for an engine to infer fuel temperature from a measured rate of change in a pressure of a fuel passage between a low pressure fuel pump and a high pressure fuel pump during certain operating conditions, including when the low pressure fuel pump is switched off. The operation of the low pressure fuel pump may be adjusted responsively to a change in the inferred fuel temperature.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 17, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Ulrey, Ross Pursifull
  • Patent number: 10359017
    Abstract: An electromagnetically actuable rate control valve for controlling a delivery rate of a high-pressure pump includes an electromagnet, a valve element, an armature shaft, and at least one strength element. The valve element is movable in an axial direction and is configured to open and to close the electromagnetically actuable rate control valve. The armature shaft transmits a force. The force is produced by the electromagnet and acts on the valve element in the axial direction. The at least one strength element is configured to raise at least the strength of the armature shaft. The armature shaft includes a needle region adjacent to the valve element and an armature region remote from the valve element. The needle region and the armature region are integral with each other.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 23, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Bueser, Juergen Haller, Heiko Roth, Ruthard Bonn
  • Patent number: 10337464
    Abstract: A method for an engine is presented, wherein during a first condition, pressurized gas from an engine coolant degas bottle to an ejector positioned in a vent line coupled to a fuel vapor canister; and the contents of the fuel vapor canister are purged to an engine intake. The ejector may draw atmospheric air into the fuel vapor canister, thus enabling purging of the fuel vapor canister even when an engine intake vacuum is below a threshold. In this way, boosted engines and other engines configured to operate with reduced intake vacuum may execute canister purging events that are independent of engine intake pressure.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 2, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 10329026
    Abstract: An aircraft fuel system, comprising: a fuel tank; a fuel line; and an engine; wherein the fuel line includes a first conduit configured to carry fuel from the tank towards the engine, and a second conduit configured to carry fuel from the engine towards the tank, wherein one of the first conduit or the second conduit is disposed annularly around the other of the first conduit or the second conduit. Also, a method of operating the system. The system may be used to suppress ice formation in the first conduit and/or provide leakage detection.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: June 25, 2019
    Assignee: AIRBUS OPERATIONS LIMITED
    Inventors: Richard Haskins, Franklin Tichborne, Joseph K-W Lam
  • Patent number: 10330066
    Abstract: The present disclosure relates to high-pressure fuel pumps and the teaching may be applied to pumps in which a pump piston, by means of which a fuel is acted on with a high pressure, is guided in a guiding sleeve. In some embodiments, a high-pressure fuel pump may include: a housing having a housing recess; a pump piston for pressurizing a fuel; and a guiding sleeve arranged in the housing recess and guiding the pump piston. The guiding sleeve is connected to the housing recess with a materially engaging connection.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 25, 2019
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Stefan Kulzer
  • Patent number: 10288024
    Abstract: A fuel pump includes a housing provided with an axial bore defining a compression chamber. The pump is further provided with a cylindrical piston slidably arranged in the bore, the piston extending from a top extremity that is inside the bore, defining a high pressure extremity, to a lower extremity, defining a low pressure extremity. The piston is able to reciprocally slide between a lower position where fuel at low pressure enters the compression chamber via an inlet and, a top position where fuel present in the compression chamber is pressurized before being expelled via an outlet. The piston is also provided with a recess surrounded by a peripheral wall arranged on its high pressure extremity, the recess and peripheral wall enabling the piston to expand radially when fuel in the compression chamber is pressurized.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: May 14, 2019
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Ben Marsden, Andreas Panayiotou, Adam Mercer
  • Patent number: 10273920
    Abstract: In a tappet-driven single piston pump, piston side loads caused by return spring out-of-squareness are eliminated by effectively piloting the piston return spring, preferably the associated spring seat, by the tappet, thereby allowing the tappet to bear the spring side load. The piston engages and is returned by the spring seat, but radial clearance between the piston and spring seat is greater than radial clearance between the spring seat and tappet, thus eliminating side loading imparted to the piston. The spring seat can be considered a piston retainer, in which the piston is not closely attached to the retainer but instead exhibits a predefined radial clearance greater than the piloting clearance between the retainer and the tappet.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: April 30, 2019
    Assignee: Stanadyne LLC
    Inventor: Robert G. Lucas
  • Patent number: 10273901
    Abstract: Methods and systems are provided for a cam carrier insert coupled to a cylinder head of an engine. In one example, a system may comprise: a cylinder head with a cam bearing tower; a cam carrier insert positioned in the cylinder head; and a camshaft, the camshaft directly supported by the cam bearing tower and directly supported by the cam carrier insert. By mounting a first portion of the cam shaft to the cam bearing tower and a second portion of the cam shaft on the cam carrier insert, the system may operate deactivatable and non-deactivatable intake or exhaust valves of one or more engine cylinders in the engine. In this way, packaging of engine components within the cylinder head may be improved while promoting better engine performance.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: April 30, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Jeff D. Fluharty, Forest Heggie, Robert Stephen Furby, Daniel Nelson, John Christopher Riegger, Jeffrey Thomas Lacroix
  • Patent number: 10161349
    Abstract: Methods and systems are provided for increasing a lift pump voltage to a high threshold voltage responsive to a DI pump efficiency being below a threshold efficiency, and increasing a lift pump voltage to a first threshold voltage less than the high threshold voltage responsive to a main jet pump fuel reservoir level being less than a first threshold reservoir level. The approach increases fuel jet pump performance and thereby reducing engine stalls induced by fuel vaporization, while maintaining DI pump efficiency and fuel economy.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 25, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Christopher Arnold Woodring, Joseph Norman Ulrey, David Ord
  • Patent number: 10077734
    Abstract: A high-pressure injection device for an internal combustion engine to which engine segment times are assigned, having a high-pressure pump, a rail connected to the high-pressure pump via a high-pressure fuel line, at least one injector, a digital pressure reduction valve connected to the rail, a fuel return line connected to the pressure reduction valve, and a control unit. The control unit is configured to switch the pressure reduction valve into the transmissive state only in predetermined engine segment times, and to maintain said transmissive state of the pressure reduction valve for a time period which is greater than the duration of one engine segment time.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: September 18, 2018
    Assignee: Continental Automotive GmbH
    Inventors: Tet Kong Brian Chia, Thomas Kraft, Andreas Bodensteiner, Walter Sassler
  • Patent number: 10072645
    Abstract: The present disclosure provides a pump including a cylinder, a plunger, a spring seat, a spring, and a stopper. The cylinder defines therein a cylinder hole. The plunger includes a shaft portion, a seat receiver, and a step surface. The spring biases the plunger in a second direction opposite to a first direction through the spring seat. The stopper includes an engaging portion. The engaging portion restricts, by engaging with the step surface, a movable range of the plunger in the second direction. The stopper defines therein an eccentric hole that has an inner diameter greater than an outer diameter of the step surface. The eccentric hole is eccentric with the plunger and opens through a portion of the stopper other than the engaging portion.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 11, 2018
    Assignee: DENSO CORPORATION
    Inventor: Hiroki Inatani
  • Patent number: 10054075
    Abstract: A fuel system for a machine is disclosed. The fuel system may include a fuel pump, a pump motor configured to drive the fuel pump, and a pump controller. The pump controller may be operatively connected to the pump motor, a main battery bank of the machine via a power wire and a ground wire, and an engine controller of the machine via a communication wire. The pump controller may be configured to detect a failure of at least one of the communication wire, the power wire, and the ground wire. The pump controller may also be configured to adjust a power output and an operation of the pump motor based on the detected failure of at least one of the communication wire, the power wire, and the ground wire.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: August 21, 2018
    Assignee: Caterpillar Inc.
    Inventors: Andrew Marrack, Scott Shafer
  • Patent number: 9995538
    Abstract: An energy recovery system includes a heating or cooling system and an accessory operably connected to the heating or cooling system, or to a component of the heating or cooling system. One or more accessory interlocking mechanisms are located at the housing interlocked with one or more complementary interlocking mechanisms located at the system or the component of the heating or cooling system to secure the accessory directly to the component. A method of securing an accessory to a heating or cooling system or a component of a heating or cooling system includes aligning one or more accessory interlocking mechanisms with one or more interlocking mechanisms. The accessory is urged toward an installed position by moving the accessory along a length of the one or more complementary interlocking mechanisms. The one or more accessory interlocking mechanisms are interlocked with the complementary interlocking mechanisms to secure the accessory.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: June 12, 2018
    Assignee: CARRIER CORPORATION
    Inventors: Dwight H. Heberer, Kent Kuffner
  • Patent number: 9945752
    Abstract: A method for a hybrid-electric vehicle is presented, wherein a fuel tank is sealed closed during a first condition that includes an inductive charging event, and wherein degradation of a fuel tank pressure transducer is indicated responsive to a fuel tank pressure transducer output failing to increase above a threshold following an active testing duration. The outer walls of the fuel tank may include ferrous components which are energized by a magnetic field generated during the inductive charging event, thus heating the fuel tank and the fuel stored within. In this way, the pressure within the sealed fuel tank increases during the inductive charging event, and a determination may be made as to whether the output of the fuel tank pressure transducer is rational.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: April 17, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 9835102
    Abstract: A method for controlling fuel pump of vehicle includes sensing a vehicle door lock release signal, detecting a fuel pressure in a fuel line, and actuating the fuel pump so that the fuel pressure arrives at a predetermined target pressure when the detected fuel pressure is below a predetermined actuation pressure.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: December 5, 2017
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Hyun Kim
  • Patent number: 9810163
    Abstract: A pump has a plurality of pumping elements, each being independently responsive to an actuation signal from a controller. The controller is programmed to maintain a desired pressure at the pump discharge, monitor the fluid pressure at the pump discharge, compare the fluid pressure with the desired fluid pressure to determine a pressure error, provide commands to sequentially actuate the pumping elements when the pressure error is within a threshold range, and provide commands to actuate more than one of the plurality of pumping elements simultaneously, such that more than one pumped amounts of fluid are delivered simultaneously at the pump discharge, when the pressure error droops outside of the threshold range.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: November 7, 2017
    Assignee: Caterpillar Inc.
    Inventors: Joshua W. Steffen, Sunil J. Bean
  • Patent number: 9797387
    Abstract: A high-pressure fuel supply pump includes a plunger, a valve member, a valve seat, a pressurizing chamber, and a fuel passage. The fuel passage includes a gap passage portion formed in a gap between the valve seat and the valve member. The fuel passage also includes a bent passage portion extending in a bent direction with respect to the gap passage portion, on the downstream side of the gap passage portion. The inner surface of the valve member, on a side thereof that faces the valve seat, has a convex shape in an area of the valve member that is between the bent passage portion and the gap passage portion.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: October 24, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shunsuke Aritomi, Satoshi Usui, Atsuji Saito, Tatsuo Kawano, Masayuki Suganami, Kenichirou Tokuo
  • Patent number: 9771910
    Abstract: Methods and systems are provided for delivering fuel to a port injector fuel rail in a port fuel direct injection (PFDI) engine. In one example, the port injector fuel rail may receive fuel from each of a compression chamber and a step chamber of a direct injection fuel pump coupled in the PFDI engine. In this way, pressurized fuel may be supplied to the port injector fuel rail during an entire cycle of the direct injection fuel pump.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: September 26, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Gopichandra Surnilla, Joseph F. Basmaji, Mark Meinhart, Hao Zhang
  • Patent number: 9752530
    Abstract: Methods and systems are provided for operating a high pressure injection pump to provide each of high fixed fuel pressure at a port injection fuel rail and high variable fuel pressure at a direct injection fuel rail. Port injection fuel rail pressure can be raised above a pressure provided with a lift pump via a fuel system configuration that includes various check valves, pressure relief valves, and a spill valve positioned between an inlet of the high pressure injection pump and the port injection fuel rail. High pressure port injection may be advantageously used to provide fuel at high pressure during conditions when fuel delivery via high pressure direct injection is limited.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 5, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Joseph F. Basmaji, Mark Meinhart, Ross Dykstra Pursifull
  • Patent number: 9683512
    Abstract: Systems and methods are provided for a high-pressure fuel pump to mitigate audible ticking noise associated with opening and closing of a digital inlet valve of the high-pressure pump. To reduce the ticking noise associated with the high-pressure pump when the engine is idling, a solution is needed that is simple and does not involve retrofitting the fuel system with noise, vibration, and harshness countermeasures to mask the noise. Pressure devices and associated operation methods are provided that involve adding a combination of several check valves, an accumulator, and a flow control valve with weep channels to allow the digital inlet valve to be deactivated during engine idling as defined by a threshold engine speed.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: June 20, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Mark L. Stickler, Vince Paul Solferino, Paul Zeng, Ross Dykstra Pursifull, Robin Ivo Lawther, Patrick Brostrom, Jacob Jensen, Christopher Woodring, Joseph F. Basmaji, Mark Meinhart, Gopichandra Surnilla
  • Patent number: 9611840
    Abstract: A pump assembly comprises a cam and a piston. The cam rotates in a plane about an eccentric axis, and has a circumferential side wall. The piston engages the circumferential side wall of the cam, and runs along a piston axis which lies in the plane of the cam. The piston axis is parallel to but not coincident with a reference line perpendicular to and intersecting the eccentric axis.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: April 4, 2017
    Assignee: Graco Minnesota Inc.
    Inventors: Daniel W. Celotta, John C. Holman
  • Patent number: 9556804
    Abstract: A method for partial cylinder cutoff is provided. The method comprises operating a multi-cylinder internal combustion engine with applied ignition, in which an odd number n of cylinders is arranged in line, and during partial-load operation when engine load is below threshold, enabling a partial cutoff of the cylinders, the partial cutoff comprising operating each cylinder only intermittently such that each cylinder is fired and cut off in turn at an interval of (2*720° CA)/n.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: January 31, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael Tobergte, Carsten Weber, Kay Hohenboeken, Helmut Hans Ruhland, Bert Pingen
  • Patent number: 9551245
    Abstract: A torsion assembly for providing controllable torsion to a camshaft, including: a spring assembly including a first spring; and, a contact element arranged to engage at least one lobe for the camshaft. For a locked mode: the contact element is arranged to be displaced by the at least one cam lobe; the contact element is arranged to compress the first spring; and the first spring is arranged to impart a first torque to the camshaft via the contact element. For an unlocked mode, the contact element is arranged to be displaced by the at least one cam lobe and the contact element is arranged to impart a second torque, less than the first torque, to the cam shaft via the contact element.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: January 24, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jeffrey Shewell, John Stallmann
  • Patent number: 9297328
    Abstract: A fuel injection system of an internal combustion engine includes a first and a second fuel pump, a leakage-prone volume flow regulating valve arranged in a fuel line between the first and the second fuel pump, and a control unit configured to actuate the first fuel pump as a function of a position of the leakage-prone volume flow regulating valve, such that the leakage-prone volume flow regulating valve serves as the sole actuating element for pressure regulation in the fuel injection system. An associated pressure regulating method is also disclosed.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 29, 2016
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Christoph Klesse, Hans Riepl, Wolfgang Stapf, Tobias Ritsch, Uwe Lingener
  • Patent number: 9291132
    Abstract: A high-pressure fuel pump assembly for use in an internal combustion engine is disclosed. The fuel pump assembly comprises a pumping plunger for pressurizing fuel within a pump chamber during a plunger pumping stroke, and being slidably received in a plunger bore; a rider member co-operable with a drive; and an interface member for imparting drive from the rider member to the pumping plunger to perform the plunger pumping stroke, the interface member having an interface side co-operable with the rider member). The pumping plunger comprises fluid delivery means for delivering fuel from the pump chamber to one or more contact surfaces of the pumping plunger, thereby to lubricate the contact surfaces.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: March 22, 2016
    Assignee: Delphi International Operations Luxembourg S.A.R.L.
    Inventors: Cristian A. Rosu, Rainer Werner Jorach
  • Patent number: 9283841
    Abstract: A fuel pump device is installed in an engine compartment of a vehicle. The engine is placed in the engine compartment with a crankshaft extending in the vehicle width direction. An in-vehicle component is placed at one side of the engine compartment in the vehicle width direction relative to the engine. In the fuel pump device, an attachment is mounted on an end of the top of a cam housing mounted on the upper surface of the cylinder head. The end of the top of the cam housing is located at the other side of the engine compartment in the vehicle width direction relative to the engine. The attachment is so inclined with respect to the vehicle longitudinal direction as to be directed obliquely backward and upward from the cam shaft member toward the engine hood and the dash panel.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: March 15, 2016
    Assignee: SUZUKI MOTOR CORPORATION
    Inventor: Hiroyuki Kaneko
  • Patent number: 9181910
    Abstract: A control valve is provided, in particular for metering in a fluid for a delivery pump which is arranged downstream. The control valve has a flow channel, an axially movable valve needle, and a valve element which can be loaded by the valve needle in an opening direction and is arranged in the flow channel. If the valve element is actuated in the opening direction by the valve needle, the fluid can flow back through the flow channel at least temporarily counter to the opening direction of the valve element. Upstream of the valve element as viewed in the backflow direction, the flow channel has a fluidically active shield which keeps the backflow at least partially free of a face of the valve element.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 10, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Erik Thorwirth, Winfried Eckart, Dominik Brunner, Christian Heinen
  • Patent number: 9169762
    Abstract: A hydro-carbon injection supply unit includes a fuel filter including a damping head which reduces a high fuel pulsation pressure generated in a cylinder head through an inner circulation path along of the fuel, and an HCI part for receiving the fuel discharged from the fuel filter whose pulsation pressure has been reduced and injecting the fuel to an exhaust manifold at a front end of a catalyst. Accordingly, even if a fuel pulsation pressure exceeding a design value is generated in the cylinder head, the HCI part is not influenced at all.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: October 27, 2015
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jiho Kim, Sukil Park, Joungwoo Lee
  • Patent number: 9086029
    Abstract: A method is provided for operating an injection system of a motor vehicle, which injection system is designed as an adjusting system having volumetric flow rate control via a normally open inlet valve. If a fault of the inlet valve leading to undesired closing of the inlet valve is detected, the inlet valve is closed already during the suction phase of the high-pressure pump by applying current and is opened again during a part of the suction phase corresponding to a pumping demand in order to thereby control or at least reduce the flow rate of the high-pressure pump. Thus, corresponding safety measures, such as a pressure-limiting valve in the high-pressure region, can be omitted.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: July 21, 2015
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Hans Riepl, Tobias Ritsch
  • Publication number: 20150136091
    Abstract: A pressure jet pump of a fuel pump module for a vehicle can prevent an engine from stopping and disordering due to unstable fuel supply, by keeping fuel supply stable in driving under bad conditions. The pump includes: a nozzle portion into which some of fuel pressurized by a fuel pump flows; a fuel intake portion integrally formed at the rear end of the nozzle portion and having a plurality of suction holes around the circumference; a mixing chamber that is integrally formed at the rear end of the fuel intake portion and in which fuels flowing inside through the nozzle portion and the fuel intake portion are mixed; and a diffuser that is integrally formed at the rear end of the mixing chamber and through which fuel sent from the mixing chamber is diffused.
    Type: Application
    Filed: May 16, 2014
    Publication date: May 21, 2015
    Applicant: Hyundai Motor Company
    Inventors: Bu Yeol Ryu, Pil Seon CHOI, Seung Hwan PARK
  • Publication number: 20150136099
    Abstract: A valve (4, 4?) for a fuel system for a combustion engine: A ball retainer (26) is provided with a cavity (28) to accommodate a ball (22). The ball (22) has a first seal surface (30) to cooperate with and abut sealingly against a seat (32). The ball retainer (26) has a secondary seal surface (34) to cooperate with and abut sealingly against the seat (32) when the ball (22) is not in the ball retainer (26). Also, a method for controlling a fuel system for a combustion engine.
    Type: Application
    Filed: April 10, 2013
    Publication date: May 21, 2015
    Inventor: Kim Kylström
  • Patent number: 9016263
    Abstract: A high pressure fuel pump for use with an internal combustion engine and a method of operation of a high pressure fuel pump are disclosed. The high pressure fuel pump may include a supply chamber and a pump chamber separated by a passage in sealing arrangement with a disk. The disk may have one or more holes therethrough and be rotatable in order to place the holes in the disk in varying degrees of alignment with the passage to allow respective, varying amounts of fuel to flow through the passage.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: April 28, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Paul Zeng, Vince Paul Solferino, Patrick Brostrom, Kyi Shiah
  • Publication number: 20150090226
    Abstract: Disclosed in certain embodiments are methods of improving efficiencies of adsorbed gas fuel systems and to recover vapors from gasoline containers.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: William Dolan, Christoph Garbotz, Adam Lack, Joseph Lynch, Stefan Marx, Ulrich Mueller, Michael SantaMaria, Mathias Weickert