Electric Fuel Pump Patents (Class 123/497)
  • Patent number: 11418182
    Abstract: Switch circuitry comprise a boosting circuit, a first switch, and a second switch. The boosting circuit boosts an input voltage. The first switch includes an input part to which the input voltage is applied, an output part which outputs an output voltage based on a voltage applied to the input part, and a driving part to which a driving voltage is applied, the first switch in which a voltage which the boosting circuit outputs is applied to the driving part and which outputs the output voltage based on the input voltage when the input voltage is higher than the output voltage. The second switch short-circuits the driving part of the first switch and the input part of the first switch when a value obtained by subtracting the input voltage from a voltage applied to the driving part exceeds a driving threshold.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: August 16, 2022
    Inventor: Tsuneyuki Hayashi
  • Patent number: 11400876
    Abstract: A sensor information output apparatus includes a plurality of first power supply circuits, a single second power supply circuit, and a plurality of receivers. The first power supply circuits are configured to generate operating voltages of digital sensors of a plurality of systems. The number of the first power supply circuits is equal to the number of the plurality of systems. The second power supply circuit is configured to generate a signal voltage for synchronizing signals. The receivers are configured to supply the digital sensors with the synchronizing signals including the operating voltages and the signal voltage. The number of the receivers is equal to the number of the plurality of systems. The digital sensors are configured to supply the electric signals to an external circuit as sensor information.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 2, 2022
    Inventors: Yuma Sato, Masato Oda, Kenichi Kozuka
  • Patent number: 11035322
    Abstract: A pump module includes a pump section that discharges evaporated fuel generated in a fuel tank to an intake path of an internal combustion engine. The pump module also stores correction information for correcting a rotation speed of the pump section based on a difference between a reference discharge characteristic of a reference pump section at a predetermined rotation speed and a discharge characteristic of the pump section at the predetermined rotation speed.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: June 15, 2021
    Inventor: Daisaku Asanuma
  • Patent number: 11008932
    Abstract: A fuel and gas mixing structure for an engine is provided. This mixing structure includes a body configured to be positioned between a fuel injector and a cylinder of an engine. The body defines an interior volume that is configured to receive gas from outside the body and to receive one or more streams of fuel from the fuel injector in the interior volume. The body also defines one or more mixture conduits configured to conduct plumes of the fuel and gas, while mixing, from the interior volume to one or more exit ports and therethrough to the cylinder.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: May 18, 2021
    Inventors: Adam Edgar Klingbeil, Roy James Primus, John Dowell, Victor Manuel Salazar, Thomas Michael Lavertu, Kevin Bailey, Kevin McElhaney, Bhaskar Tamma, Sreenivasa Rao Gubba
  • Patent number: 10995711
    Abstract: A method and apparatus for modifying an existing style fuel tank to add a fuel pump and a baffle assembly in the tank comprises removing an existing fuel sending unit from a sending unit opening and cutting an access hole in the top of the tank. Fuel supply and return lines, and electrical connections for the fuel pump are routed through a replacement cap for covering the sending unit opening and not up through the hole created for insertion of the pump and baffle assembly. The baffle assembly includes a cup for holding fuel around and over the fuel pickup connected to the fuel pump. The cup may be formed from a compressible material to allow it to be compressed before insertion into the tank through the access opening or it may be assembled inside of the tank from segments inserted through the access opening.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 4, 2021
    Assignee: Aeromotive, Inc.
    Inventors: Steven M. Matusek, Shawn D. Wessol, Dale A. White, Karl M. Brewer
  • Patent number: 10954904
    Abstract: A pressure-regulating device for a fuel consumption measurement system includes a fuel supply line which supplies fuel to a consumer, a fuel return line, a bypass line which branches off from the fuel supply line, a pressure regulator which sets a free flow cross-section in the bypass line, a pressure sensor arranged at the fuel supply line downstream of where the bypass line branches off, a control unit electrically connected to the pressure sensor, and a pressure-reducing element arranged in the fuel supply line upstream of the pressure sensor and downstream of the branch of the bypass line. The bypass line fluidically connects the fuel supply line to the fuel return line and feeds fuel from the fuel supply line to the fuel return line while bypassing the consumer. The pressure sensor provides pressure measurement values. The control unit regulates the pressure regulator depending on the pressure measurement values.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: March 23, 2021
    Assignee: AVL LIST GMBH
    Inventors: Alexander Volk, Ruggero Leoncavallo, Andre Steinhoefler
  • Patent number: 10895216
    Abstract: A controller of a control device of an internal combustion engine includes: a storage configured to store fuel pressure detected during injection of one port injection valve of port injection valves in association with another port injection valve, of the port injection valves, scheduled to inject fuel after one or two cycles of the fuel pressure pulsation elapsing from injection of the one port injection valve; and a calculator configured to calculate an energization period of the another port injection valve based on the stored fuel pressure.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: January 19, 2021
    Inventors: Toru Suda, Rintarou Tachibana, Tetsuji Nagata
  • Patent number: 10859025
    Abstract: Methods and systems are provided for operating a lift pump of an engine fuel system. In one example, a method may comprise predicting when a fuel rail pressure will decrease below a threshold assuming that a lift pump remains off. The method may further comprise powering on the lift pump before the fuel rail pressure decreases below to the threshold to prevent fuel rail pressure from decreasing below the threshold.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: December 8, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Justin Trzeciak, Joseph Norman Ulrey, Ross Dykstra Pursifull
  • Patent number: 10837393
    Abstract: A method for operating an engine in which fuel is supplied to the engine by a fuel pump and by a high-pressure fuel pump, and in which the speed of the fuel pump and/or the electrical current for feeding the fuel pump is controlled in accordance with a requirement variable, taking into account a determination specification. When the engine has changed to an overrun mode of operation, a calibration is performed and the speed of the fuel pump is detected and is maintained. Once the triggering pressure for a calibration valve has been reached, the pump current is detected, a bypass volumetric flow rate of the high-pressure fuel pump is determined during calibration using operating parameters and the triggering pressure for the calibration valve, the determined speed, the bypass volumetric flow rate and the determined pump current are used to calibrate the determination specification.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: November 17, 2020
    Assignee: Continental Automotive GmbH
    Inventor: Gerald Behrendt
  • Patent number: 10816003
    Abstract: An electric pump includes: a motor that drives a pump; and a control unit to which an input signal for driving the motor is input from an external device, which outputs a drive signal based on the input signal, and which outputs a pulse signal indicating a rotation state of the motor to the external device, in which the control unit is configured to change both of a frequency and a duty ratio of the pulse signal so as to be capable of discriminating whether the motor is in a drive state or a stop state and between a plurality of states of the motor in the stop state.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 27, 2020
    Inventors: Yuta Hiratsuka, Koichi Aizawa
  • Patent number: 10797458
    Abstract: A method is provided for producing a plug, having a plastic injection-molded encapsulation, for a fuel pump which arranged in a fuel tank of a motor vehicle. The plug has cables, stranded wires and a ground contact each protruding out of the encapsulation and each connected to encapsulated components. The plug elements and coils are inserted into a base plate. One core of a cable is soldered, welded or crimped to flat plug elements. The coils and stranded wires are each soldered, welded or crimped to a flat plug element. The base plate is inserted into a cavity of an injection mold, such that the cables and the stranded wires protrude out of the cavity through first passage openings and second passage openings, respectively, and cores are arranged in continuous openings of identical cross section in the wall of the injection mold. The cavity is then filled with a plastic.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 6, 2020
    Assignee: Vitesco Technologies GmbH
    Inventors: Gabriel Simara Lima, Otto Korst, Ralf Muehlhausen
  • Patent number: 10753316
    Abstract: Provided is a high pressure fuel pump that smoothly achieves fuel supply while running and quickly relieves vapor generated during a restart by a piston operation of a high pressure fuel pump to improve a startup delay phenomenon, and an LPDI system including the same.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: August 25, 2020
    Inventors: Wan Jae Jeon, Jun Hyeok Lee, Yong Deok Park, Dae Yong Kim, Seung Jin Park
  • Patent number: 10746286
    Abstract: In a hydraulic control device, a hydraulic sensor is provided on an intake side of a second pump where first oil is taken in and a line pressure sensor is provided on a discharging side of the second pump where the second oil is discharged. A control unit controls driving of the second pump by controlling a motor on the basis of an output pressure detected by the output pressure sensor or a line pressure detected by the line pressure sensor.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: August 18, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masamichi Harada, Kyohei Sakagami, Makito Nakasone, Shigeji Nakano
  • Patent number: 10731612
    Abstract: A fuel pump cover includes a first cover member and a second cover member. The first cover member has an attachment flange configured to attach to a surface of a fuel tank, a cover part coupled to the attachment flange and configured to cover a first fuel pump outlet to a fuel pump, and an attachment feature. The second cover member is configured to be removably attached to the attachment feature, and configured to cover a second fuel pump outlet to the fuel pump.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 4, 2020
    Assignee: Nissan North America, Inc.
    Inventors: Maria Teresa Aponte Hernandez, Takayuki Fuwa
  • Patent number: 10711746
    Abstract: An intake manifold may include a manifold inlet connected with an intake line into which fresh air flows and a recirculation line into which exhaust gas recirculation (EGR) gas flows; a manifold pressure sensor for measuring pressure of fluid flowing through the manifold inlet; and a sensor housing fluidly communicating with the manifold inlet and including a mounting space in which the manifold pressure sensor is mounted.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: July 14, 2020
    Inventors: Il Suk Yang, Seung Hoon Lee, Junghyeok Lim
  • Patent number: 10655579
    Abstract: A fuel supply system includes a housing including a housing body in which a fuel storage tank serving as a reservoir tank as well and a lid covering an opening of the housing body in an air-tight manner. The housing includes a fuel pump, a regulator configured to regulate a pressure of the fuel to return excess fuel to the fuel storage tank, a regulator holding member supporting the regulator, and a fuel storage volume adjusting unit that maintains the liquid surface level of the stored fuel at a fixed level. The fuel supply system supplies fuel at a predetermined pressure from a fuel discharging pipe of the lid to the engine. The regulator holding member is formed in such a manner in a planar view as to fill most of interspace in the opening of the housing body to close the upper portion of the fuel storage tank.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: May 19, 2020
    Assignee: Nikki Co., Ltd.
    Inventors: Teruyuki Wakabayashi, Yukinori Suematsu
  • Patent number: 10648421
    Abstract: Disclosed are a method and system for controlling fuel injection in response to a change in the content of ethanol in a FFV having oxygen sensors and an ethanol sensor. The system includes an ethanol content change detection unit configured to detect a change in the content of ethanol, a flow rate calculation unit configured to calculate a volumetric flow rate of blending fuel and to integrate the calculated value, a condition determination unit configured to determine whether the change in the content of ethanol satisfies a condition for applying a fuel injection correction value, a control execution determination unit configured to determine whether to apply the fuel injection correction value by comparing the volumetric flow rate integration value with a preset second reference value, and a controller configured to determine a fuel injection correction value and to adjust an amount of fuel injection.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 12, 2020
    Assignee: HYUNDAI AUTRON CO., LTD.
    Inventors: Youngjin Kim, Dongha Kim
  • Patent number: 10648435
    Abstract: A fuel supply device includes a pump unit with a fuel pump that has a rotary body rotating about a rotary shaft and a load receiving portion, configured to receive the load of the pump unit. A connecting portion is provided for connecting the pump unit to the load receiving portion such that the pump unit is suspended by the load receiving portion. The connecting portion is disposed so as to extend across a virtual plane which is perpendicular to the rotary shaft for the rotary body of the fuel pump and passes through the center of gravity of the pump unit.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 12, 2020
    Inventors: Kensuke Niwa, Koji Yoshida, Takayuki Usui, Yuichi Murakoshi, Yoshiki Kamio
  • Patent number: 10598102
    Abstract: A dual-fuel injector for an internal combustion engine, including a first injection device for injecting a first fuel and at least one second injection device, arranged radially outward from the first injection device, for injecting a second fuel, wherein the second fuel is different from the first fuel, and further including a first connection for supplying the first fuel and a second connection for supplying the second fuel. The first connection is fluidically connected to the first injection device in order to supply the gaseous first fuel and the second connection is fluidically connected to the second injection device in order to supply the liquid second fuel.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: March 24, 2020
    Inventors: Manuel Boog, Wolfgang Fimml
  • Patent number: 10253718
    Abstract: An engine fuel system includes a fuel delivery system including a first fuel pump that is coupled to a pressure relief valve that is arranged in parallel with a second fuel pump. The first fuel pump is disposed to deliver pressurized fuel to the second fuel pump and the pressure relief valve, and the second fuel pump is disposed to deliver pressurized fuel to the fuel rail. A controller characterizes the first fuel pump to determine a relationship between a fuel pump speed and a fuel pump current at a setpoint pressure for the pressure relief valve. A feed-forward pump speed command is determined based upon a target fuel pressure and a fuel flowrate. A closed-loop pump speed is commanded based upon the characterization of the fuel pump. The first fuel pump is controlled to deliver fuel to the second fuel pump based thereon.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: April 9, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Thomas L. Grime, Yvan De Blois
  • Patent number: 10232704
    Abstract: A method for determining a pressure value in a fluid conveying system of a motor vehicle, the vehicle having an actuable electric motor and having a fluid feed pump drivable by the electric motor, includes: determining a rotational speed of the electric motor; determining an actuation current of the electric motor; acquiring a pressure value as a function of the determined rotational speed and the determined actuation current of the electric motor; processing the acquired pressure value with at least one external state variable in a controller; and correcting the acquired pressure value.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: March 19, 2019
    Assignee: Continental Automotive GmbH
    Inventor: Gerald Behrendt
  • Patent number: 10197004
    Abstract: Methods and systems are provided for operating a fuel system comprising two lift pumps. In one example, a method may comprise adjusting operation of a first lift pump to achieve a desired fuel rail pressure. The method may comprise powering on a second lift pump to achieve the desired fuel rail pressure when operating only the first lift pump is not sufficient to achieve the desired fuel rail pressure.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: February 5, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Joseph Lyle Thomas, David Gimby
  • Patent number: 10184436
    Abstract: A fluid injection system includes a fluid injector assembly; a fluid conditioning module having an outlet port that is fluidly coupled to an inlet port of the fluid injector assembly; an injector assembly outlet conduit fluidly coupled to an outlet port of the fluid injector assembly and disposed downstream of the fluid injector assembly, the injector assembly outlet conduit defining a pressure measurement port and a flow-restricting orifice, the pressure measurement port being disposed upstream of the flow-restricting orifice along the direction of fluid flow through the fluid injector assembly; a pressure sensor fluidly coupled to the pressure measurement port; and a controller operatively coupled to the fluid conditioning module and the pressure sensor. The controller is configured to adjust a flowrate of a fluid through the injector assembly inlet conduit based on a pressure signal from the pressure sensor.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Scott F. Shafer, Martin Lehman, Lifeng Wang, David E. Hackett, Taylor Tang, Andrew Marrack, Dennis H. Gibson
  • Patent number: 9982618
    Abstract: An engine includes a low-pressure delivery pipe that stores fuel to be injected from port injection valves, a feed pump that supplies the fuel to the low-pressure delivery pipe, a high-pressure delivery pipe that stores the fuel to be injected from in-cylinder injection valves, a high-pressure pump driven in response to rotation of the engine, and a fuel pressure sensor that detects a pressure of the fuel stored in the low-pressure delivery pipe. An engine ECU controls the feed pump based on a detection value from a fuel pressure sensor, and when the engine ECU executes an abnormality diagnosis of the fuel pressure sensor, the engine ECU increases a rotational speed of the engine to be higher than a rotational speed when the engine ECU does not execute an abnormality diagnosis of the fuel pressure sensor. This improves the accuracy of an abnormality determination of the fuel pressure sensor.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: May 29, 2018
    Inventors: Takashi Suzuki, Tomoya Suzuki, Keisuke Nagakura
  • Patent number: 9944182
    Abstract: Aspects of the subject matter described herein relate to vehicle notifications. In aspects, while a vehicle is in motion, certain types of notifications are not presented to the driver. After the vehicle has stopped and a point appropriate for notification is occurring, a notification may be presented. The notification may assist a driver in, for example, learning features of the vehicle, improving efficiency, or in many other ways.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: April 17, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Cheryl N. Platz, John P. Hendricks, Mark O'Hanlon
  • Patent number: 9938922
    Abstract: A system and method for injecting fuel into an engine is provided where a low-pressure fuel pump is connected in fluid communication with at least one port fuel injector and a high-pressure fuel pump is connected in fluid communication with at least one direct fuel injector. The port fuel injector is disposed along an intake path of the engine and the direct fuel injector is disposed adjacent a cylinder of the engine. A lost motion lifter selectively couples the high-pressure fuel pump and the engine. A pump deactivation module switches the lost motion lifter to selectively deactivate the high-pressure fuel pump from the engine in response to partial load operation of the engine. The pump deactivation module may additionally switch the port fuel injector to an activated state and the direct fuel injector to a deactivated state.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: April 10, 2018
    Assignee: AVL Powertrain Engineering, Inc.
    Inventor: Paul Andrew Whitaker
  • Patent number: 9932944
    Abstract: Methods and systems are provided for the integration of a fuel level sensor and a fuel pressure sensor in a fuel tank within a fuel system. In one example, an integrated fuel pressure and fuel level sensor for a fuel tank may include a float arm of the fuel sensor coupled to a floating body and a pressure sensor (e.g., a fuel tank pressure transducer) coupled to the floating body, the integrated fuel pressure and fuel level sensor adapted to simultaneously measure fuel level and fuel vapor pressure of the fuel tank.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: April 3, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Dennis Seung-Man Yang, Aed M. Dudar, Mohammad R. Aghili, Ralph Gesell
  • Patent number: 9920713
    Abstract: A reciprocating piston cryogenic pump has been suspended from stroking when process fluid discharge temperature from a vaporizer dropped below a threshold to prevent freezing of a heat exchange fluid circulating through the vaporizer and damage to downstream components. Suspension of the pump results in a decrease of process fluid pressure downstream of the vaporizer, which is undesirable. In the present technique, a temperature is monitored correlating to process fluid temperature downstream of the vaporizer. The amount of process fluid discharged from the pump in each cycle is adjusted as a function of the temperature such that the average residence time of the process fluid in the vaporizer is increased as the discharge amount decreases, increasing process fluid discharge temperature. The average mass flow rate of the process fluid through the vaporizer is unchanged regardless of pump discharge amount such that process fluid pressure downstream of the vaporizer is maintained.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: March 20, 2018
    Assignee: Westport Power Inc.
    Inventors: Gregory A. Batenburg, Jason J. Coatta
  • Patent number: 9752516
    Abstract: A control apparatus for a vehicle may include an engine, a fuel tank, a feed pump, a pressure sensor, a motor and an electric storage apparatus. The feed pump feeds the fuel to a port injection valve. The pressure sensor detects a fuel pressure that is fed to the port injection valve. The motor performs cranking of the engine at start time of the engine. The control apparatus includes an ECU. The ECU controls the feed pump based on a detection value of the pressure sensor and controls the motor in order to start the engine. The ECU controls the feed pump and the motor such that the electric storage apparatus feeds electric power to the motor in preference to the feed pump, when an electric power that the electric storage apparatus is able to output at the start time of the engine is less than a determination threshold.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: September 5, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takashi Suzuki
  • Patent number: 9752498
    Abstract: An outboard motor includes a cylinder block, a cylinder head unit, a delivery pipe, a plurality of injectors, a fuel pump, and a fuel pipe. The cylinder block includes a plurality of cylinders. The cylinder head unit is connected to the cylinder block. The delivery pipe is attached to the cylinder head unit. The injectors are attached to the delivery pipe. The fuel pump is attached to the cylinder head unit. The fuel pipe is attached to the delivery pipe and the fuel pump. A first attachment direction of attaching the fuel pump to the cylinder head unit is parallel or substantially parallel to a second attachment direction of attaching the fuel pipe to the delivery pipe.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: September 5, 2017
    Inventor: Yuta Miyagi
  • Patent number: 9657698
    Abstract: Disclosed herein is a vehicle fuel pump module. The vehicle fuel pump module is configured such that a controller is spaced apart from a plate body installed so as to be exposed out of a fuel tank by a support member and an air gap is provided between the plate body and the controller. Consequently, a gas generated from a fuel in the fuel tank is discharged to the atmosphere by an outdoor air circulating the air gap and thus it may be possible to prevent the gas from affecting electronic parts of the controller.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: May 23, 2017
    Assignee: Hyundam Industrial Co., Ltd.
    Inventors: Kyoung Sik Park, Kwan Beom Oh, Won Sang Cho, Jin Wook Chang
  • Patent number: 9567959
    Abstract: Provided is a connector which can facilitate tuning of frequency of pulsation to be reduced and prevent sealing performance from degrading when a piston moves. A pulsation reducing member adopts a structure in which the piston moves in a cylinder. The cylinder has an annular flange portion projecting in a radially inner direction of a hollow cylindrical shape. An elastic sealing member is sandwiched in a compressed state between an end surface of the flange portion of the cylinder and an end surface of the piston. An urging body is disposed in a region in the cylinder on a side of the piston opposite to a passage and applies urging force to move the piston toward the passage and compress the elastic sealing member.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: February 14, 2017
    Inventors: Yorihiro Takimoto, Ryo Ikegami, Koji Mizutani, Kazutaka Katayama
  • Patent number: 9556841
    Abstract: A fuel supply system may include a fuel pump configured to supply fuel from a fuel tank to a target, a motor for driving the fuel pump, and a controller coupled to the motor. The controller may determine a duty ratio of a control signal through a feedback control and to output the control signal to the motor, so that a fuel pressure of the fuel supplied from the fuel tank approaches a target fuel pressure. The controller may estimate the duty ratio based on the target fuel pressure and information regarding a fuel pressure of the fuel supplied from the fuel tank, and may guard an upper limit of the duty ratio by an upper limit guard value. The upper limit guard value may be determined based on a rotational speed of the motor.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: January 31, 2017
    Inventors: Naoyuki Tagawa, Minoru Akita
  • Patent number: 9556837
    Abstract: A fuel pump module for installation between top and bottom walls of a fuel tank. The housing defines a space accommodating a pump. The fuel pump module includes a mounting component coupled to the housing. The mounting component includes a first surface, a second surface opposite the first surface and facing the housing, a first end, and a second end opposite the first end. The mounting component and the housing are joined with a spring-loaded coupling such that the mounting component is urged away from the housing. The mounting component further includes a U-shaped recess that is concave on the first side of the mounting component. The bottom side of the housing forms a first distal end of the fuel pump module for engaging the bottom wall. The first surface of the mounting component forms a second distal end of the fuel pump module for engaging the top wall.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: January 31, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Paul Rossi, Steven Lee, Paul Mason
  • Patent number: 9470181
    Abstract: A fluid pump includes a hollow housing, an electric motor having an armature with a commutator, a pump section rotationally coupled to the electric motor for receiving fuel at a relatively low pressure through a fuel inlet and pressurizing the fuel to a relatively high pressure, a motor brush is in electrical contact with the commutator and including a shunt wire extending therefrom, and an end cap that closes one end of the housing and defines a high pressure chamber with the housing. The end cap includes a hollow brush tower extending therefrom and defining a brush holder slidably receiving the motor brush therein such that the brush holder defines in part the high pressure chamber. The end cap also includes an aperture with the shunt wire extending therethrough such that the shunt wire is sealed with the aperture to prevent the fuel from passing therethrough.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: October 18, 2016
    Assignee: Delphi Technologies, Inc.
    Inventors: John G. Fischer, Mitchal A. Peterson
  • Patent number: 9409651
    Abstract: An aircraft aerial refueling system including at least one pressure controlled fuel pump having a control system adapted to regulate the pump outlet fuel pressure using an outlet fuel pressure signal as control feedback. Also, methods of operating an aircraft aerial refueling system.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: August 9, 2016
    Assignee: Airbus Operations Limited
    Inventors: Franklin Tichborne, Mark Lawson, Hugh Freeman, Arnaud Epifanie, Adrian Edwards
  • Patent number: 9303604
    Abstract: An asymmetrical orifice for bypass control in a clean fuel module may include a body having first and second end surfaces and an inner surface defining a bore through the body extending from a first opening through the first end surface to a second opening through the second end surface. The first opening has a first opening inner diameter and the second opening has a second opening inner diameter that is less than the first opening inner diameter. The asymmetrical orifice also includes a flow control contour in the second end surface surrounding the second opening of the bore. The configuration may give the asymmetrical orifice a first discharge coefficient for fluid flowing from the first opening to the second opening that is greater than a second discharge coefficient for fluid flowing in a second direction from the second opening to the first opening.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: April 5, 2016
    Assignee: Caterpillar Inc.
    Inventors: David Elliot Hackett, Scott Shafer, Martin Lehman, Alan Willard Wells, Lifeng Wang
  • Patent number: 9284907
    Abstract: By driving a fuel pump suitably to an amount of fuel according to an amount of fuel consumed by an engine and by monitoring an actual motor speed of the fuel pump, F/B control is carried out according to a target motor speed and the actual motor speed of the fuel pump. Meanwhile, by learning and storing a duty value comparable to a deviation between the target and actual motor speeds, duty driving of the fuel pump is corrected to suit an engine condition. It thus becomes possible to provide a fuel pump control apparatus of an engine capable of promoting power saving by suppressing a wasteful energy loss including a current consumption and making an internal circuit of an ECU simpler by enhancing fuel supply accuracy.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: March 15, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Yamaguchi, Yasuhiko Ishida
  • Patent number: 9279371
    Abstract: Methods and systems for monitoring an internal combustion engine are disclosed. In one example, output of a temperature sensor is converted into a fuel pressure variable to determine if fuel system components are operating as desired and cylinder air charge may be limited if degradation is determined. The methods and systems may reduce fuel system cost while also providing redundant system data.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: March 8, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Brien Lloyd Fulton
  • Patent number: 9032935
    Abstract: A method for monitoring the fuel pump includes estimating a pump speed and a nominal pump motor current in relation to a pump motor control signal and a fuel pressure. An armature resistance and a back-emf constant for the electric motor are determined corresponding to the estimated pump speed, a monitored pump motor current, and the pump motor control signal. A nominal armature resistance and a nominal back-emf constant for the electric motor are adjusted in relation to a pump motor temperature. Residuals are calculated based upon the adjusted nominal armature resistance, the adjusted nominal back-emf constant for the electric motor, the estimated armature resistance and the estimated back-emf constant for the electric motor. The residuals are compared with corresponding thresholds. A fault in the electric motor is detected based upon the comparisons of the residuals with the corresponding thresholds.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: May 19, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Youssef A. Ghoneim, Mark N. Howell
  • Patent number: 9004044
    Abstract: The invention relates to a method for supplying a high-pressure pump (1) in a fuel injection system of an internal combustion engine with fuel, wherein for delivery and for controlling the delivered quantity a delivery pump (3) is used, wherein said delivery pump is arranged in a low-pressure circuit (2) and operated by an electric motor and by means of which, depending on the respective selected engine speed, a certain quantity of fuel is fed to the high-pressure pump (1), in which the fuel is first compressed and then fed to a fuel high-pressure accumulator (4). According to the invention, the fuel pressure on the intake side of the high-pressure pump (1) is controlled by means of a pressure control valve (5), wherein a supply of the high-pressure pump (1) with fuel for lubrication and/or cooling via the low-pressure circuit (2) and the delivery pump (3) is assured when the pressure control valve (5) is in the closed position. The invention further relates to a fuel injection system.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: April 14, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Christian Langenbach, Marcus Kristen
  • Publication number: 20150040872
    Abstract: The purpose of the present invention is to provide a fuel injection pump 1 wherein it is possible to easily position the second fuel supply path 21b of a housing 21 with the fuel supply hole 22a functioning as the fuel path of an insert piece 22, and to secure the insert piece 22 such that same does not rotate within the housing 21.
    Type: Application
    Filed: February 28, 2013
    Publication date: February 12, 2015
    Inventors: Shinya Umeda, Takanori Egashira, Hiroyuki Machiyama, Kazutaka Sone, Stefan Kiechle
  • Publication number: 20150027417
    Abstract: A filter head for a pre-filtration filter for fuel has an electric pump received in a pump channel. A connecting channel connects the pump at a suction side with a clean side of the filter. An outlet channel connects the pump at a pressure side with a main filter for the pre-filtered fuel. The pump is alternatingly operated in at least two of the following operating modes: a feed or follow-up operation in which, before switching on or after switching off an ignition of the internal combustion engine, the pump supplies fuel to the outlet channel; a venting operation in which the pump pumps air out of the filter and/or a fuel line of the filter head; and a support operation in which, with switched-on ignition, the pump supplies fuel at a pressure suitable as input pressure for a high-pressure pump arranged downstream of the main filter.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 29, 2015
    Inventors: Christian Kocksch, Christopher Banks, Martin Postel, Ahmet Oerther
  • Patent number: 8936008
    Abstract: A fuel pump module for a vehicle includes a reservoir having a longitudinal axis. An aperture is arranged within a bottom surface of the reservoir. The aperture has a plurality of vanes extending towards a central ring. An umbrella valve having an elongated stem is movably secured within the central ring of the aperture. The elongated stem is movable between a first position completely overlaying the aperture to a second position at a distance from the aperture. A suction filter is located within the reservoir at the bottom surface thereof. The suction filter has an undersurface sized for receipt of the umbrella valve in both the first and second positions.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: January 20, 2015
    Assignees: DENSO International America, Inc., DENSO Corporation
    Inventors: Patrick Powell, Hajime Danjo
  • Patent number: 8924129
    Abstract: An engine fuel pump control apparatus is provided. The engine fuel pump control apparatus is connected to an engine and a transmission. A fuel pump is interposed in a fuel conduit between a fuel tank and the engine and the fuel pump has a selectively variable fuel delivery rate. A fuel pump controller is configured to adjust a fuel delivery rate from the fuel pump to the engine in which the fuel pump controller is configured to increase the fuel delivery rate as a rotational speed of the engine increases. The fuel pump controller is further configured to adjust the fuel delivery rate as a detected vehicle speed characteristic varies.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: December 30, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Takamitsu Hase
  • Patent number: 8893686
    Abstract: A pump unit having a fuel pump and a suction filter is provided in a sub tank of a fuel tank. A filter element sheet for the suction filter is formed in a cup shape, a bottom wall portion of which faces to an inner bottom surface of the sub tank. A suction port of the fuel pump is opened to a fuel passage formed in the inside of the suction filter, so that filtered fuel is sucked into the fuel pump. Multiple mountain fold portions and multiple valley fold portions are formed on a side wall of the cup-shaped filter element sheet, to thereby increase surface area for filtering the fuel.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: November 25, 2014
    Assignees: Denso Corporation, Kyosan Denki Co., Ltd.
    Inventors: Katsuhisa Yamada, Tetsuro Okazono, Hironobu Oki, Akihiro Ishitoya, Tomohito Ishihara
  • Patent number: 8869775
    Abstract: A receiving portion of a heat releasing member made of metal holds a controller, which is installed to the receiving portion through an opening of the receiving portion. An embeddable portion of the heat releasing member is formed at least along a peripheral edge of the opening of the receiving portion and is embedded in a flange, which is made of resin and covers a hole of a fuel tank. A protective member made of resin may cover each connecting portion between a corresponding one of terminals of the controller and a corresponding one of conductive line members. A primer agent coating may be applied to the conductive line members.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: October 28, 2014
    Assignee: Denso Corporation
    Inventors: Kouji Maruyama, Shinji Noda
  • Patent number: 8844503
    Abstract: A fuel supply system and method of controlling fuel flow through a supply system is provided including a variable flow, i.e. speed, electric fuel transfer pump and a control system adapted to variably control the transfer pump based on fuel demand of the engine. The system provides improved transient response by providing the transfer pump with a feed forward speed/flow command based on engine fueling demand determined based on engine operating conditions. The transfer pump is controlled based on fuel demand not necessarily achieved yet by the high pressure pump and injectors. Therefore, this system controls the EFTP substantially simultaneously with controlling the high pressure pump and injectors to optimize fuel flow through the entire system ensuring the minimum required fuel flow is passing through the second the fuel filtration system, hence maximizing steady state fuel filtration efficiency, and minimizing surge effects on filtration efficiency.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 30, 2014
    Assignee: Cummins Intellectual Property, Inc.
    Inventors: Joseph A. Worthington, Norman C. Blizard, David P. Genter, Gregory S. Franks, Michael F. Mattern, Thomas O. Hahn, James L. Walls, Edward N. Linen
  • Patent number: 8833147
    Abstract: Based on a detection signal of a fuel pressure sensor provided in a first fuel injector, an ECU determines whether a fuel pressure in a first fuel injector is increased over a specified amount when a second fuel injector provided with no fuel pressure sensor terminates a fuel injection. When the ECU determines that the fuel pressure in the first fuel injector is increased over a specified amount, it is diagnosed that the second fuel injector does not have a malfunction of continuous injection.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: September 16, 2014
    Assignee: Denso Corporation
    Inventor: Toyomori Tsuiki
  • Patent number: 8820298
    Abstract: A vehicle fuel system may employ a fuel pump module with a reservoir within a fuel tank. The system may also employ a fuel injection common rail, a fuel supply line leading from the fuel pump module reservoir to the fuel injection common rail, and a fuel return line leading from the fuel injection common rail through a fuel pump module flange. Additionally, the system may employ a first return fuel check valve to release fuel only into a reservoir jet pump and/or a transfer jet pump, while a second return fuel check valve may release fuel only directly into the fuel pump module reservoir. An electric fuel pump within the reservoir may have a fuel pump check valve and supply fuel only to the reservoir jet pump and/or the transfer jet pump, and not to an engine, when activated by a pressure sensor in the fuel return line.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: September 2, 2014
    Assignees: DENSO International America, Inc., Denso Corporation
    Inventors: William E. Attwood, Norihiro Hayashi