Electric Fuel Pump Patents (Class 123/497)
  • 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
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    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
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    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
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    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: 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
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Yuta Miyagi
  • 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: 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
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    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
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    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
  • Publication number: 20140190455
    Abstract: A hybrid drive having a hydraulic control device capable of hydraulically controlling a first clutch, a second clutch, and a continuously variable transmission using a hydraulic pressure generated by at least one of a mechanical oil pump and an electric oil pump. A control section is configured to execute a mechanical oil pump drive mode in which a command to start an internal combustion engine is provided to drive the mechanical oil pump via a first shaft using output rotation of the internal combustion engine during reverse travel in which reverse rotation is output from the rotary electric machine to rotate wheels in reverse via the second shaft, the second clutch, and the continuously variable transmission with the first clutch disengaged and with the second clutch engaged by providing a command to the hydraulic control device.
    Type: Application
    Filed: September 12, 2012
    Publication date: July 10, 2014
    Applicant: AISIN AW CO., LTD.
    Inventor: Takeshi Ootsuki
  • Patent number: 8763589
    Abstract: A fuel pump module including: a reservoir installed in a fuel tank, the reservoir being charged with a predetermined amount of fuel; a fuel pump installed in the reservoir and pumping the fuel contained in the reservoir to an internal combustion engine; a jet pump injecting a fuel jet into the reservoir to thereby introduce the fuel stored in the fuel tank into the reservoir; a guide tube installed on the jet pump and guiding both the fuel jet and the fuel introduced from the fuel tank along with the fuel jet into the reservoir; and a filter unit partitioning the interior of the reservoir into a fuel suction area, into which the fuel is introduced by the fuel pump, and a fuel charging area, which is charged with the fuel from the fuel tank, thus preventing foreign substances from being introduced from the fuel charging area into the fuel suction area.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: July 1, 2014
    Assignee: COAVIS
    Inventors: JongKeun Lim, Inseok Sohn, Kyuseob Shin, Joonseup Kim, Munsik Jeon
  • Patent number: 8764419
    Abstract: Provided is a fuel pump module for a vehicle in which a fuel pump, which is a vibration body, is physically coupled to an intank filter, a primary filter, and the like, which are other components of the fuel pump module, to have increased mass, such that unique harmonic acceleration of the fuel pump is reduced, a unique vibration area of the fuel pump or the fuel pump module is changed, and harmonic vibration of the fuel pump is thus positioned at the unique vibration area of the fuel pump or the fuel pump module, thereby making it possible to remove noise generated in a fuel tank due to abnormal vibration of the fuel pump module.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: July 1, 2014
    Assignee: COAVIS
    Inventors: Mun-sik Jeon, Chan-heum Yoon, Hoi-hyun Kim, Hyoung-il Kim, Seung-min Lim
  • Patent number: 8733323
    Abstract: A method for ascertaining an error in a fuel metering unit of an injection system for an internal combustion engine, wherein the gradients of a first signal representing a physical variable and of a second signal representing a physical variable are determined, and at a predefined magnitude and/or direction of the two gradients an error is recognized.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: May 27, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Mueller, Andreas Sommerer, Bernd Becker
  • Publication number: 20140116397
    Abstract: An electronic fuel injection system for land vehicles, comprising: a fuel tank, at least one pump, a fuel sump, wherein the at least one pump is operatively coupled to and between the fuel tank and the sump, and an engine, wherein the engine is operatively coupled to the fuel sump. A fuel sump system for land vehicles, comprising: an inlet from a pump, wherein the pump is operatively connected to a fuel tank, a fuel pump system, a regulator operatively coupled to the fuel pump system, an outlet operatively coupled to an engine, and a float component, coupled to the inlet. An electronic fuel injection system for land vehicles, comprising: a fuel tank, at least one pump, a fuel sump, wherein the at least one pump is operatively coupled to and between the fuel tank and the sump, and an engine, wherein the engine is operatively coupled to the fuel sump and wherein the electronic fuel injection system does not require a return line from the engine to the fuel tank.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 1, 2014
    Inventors: Robert Samuel Simons, Chadron Michael Magana, Jamie Wagner
  • Patent number: 8707932
    Abstract: A Fuel transfer pump system comprising a multi-mode control process for transferring fuel. The multi-mode control process comprising a closed loop pressure control mode for maintaining fuel pressure at an outlet of a fuel transfer pump at a substantially constant target pressure and having a soft start mode for bidirectionally ramping up to the target pressure by utilizing an open loop control in combination with the closed loop pressure control mode; a current control mode dynamically switchable from the closed loop pressure control mode for controlling a motor driving the fuel transfer pump as a function of a predetermined current threshold; a DC-bus voltage compensation mode operable with either the closed loop pressure control mode or the current control mode for compensating DC bus voltage sag; and an open loop ramp down mode for ramping open loop motor RPMs to zero from any other mode for shutting down system operation.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 29, 2014
    Assignee: Paragon Products, LLC
    Inventors: Zeljko Marin, Stephen T. Adelman
  • Patent number: 8683981
    Abstract: A fuel supply system includes a low pressure fuel pump, which suctions and discharges fuel accumulated in a fuel tank, and a high pressure fuel pump, which suctions and discharges the fuel discharged from the low pressure fuel pump and supplies the fuel to a fuel injection valve installed in an internal combustion engine, the low pressure fuel pump, high pressure fuel pump, and fuel injection valve being connected in series, wherein the low pressure fuel pump and high pressure fuel pump are configured in such a way as to be driven or stopped independently of each other, one by each motor, and the pressure of the fuel discharged from the high pressure fuel pump is made variable by a combination of the drive or stop of the low pressure fuel pump and the drive or stop of the high pressure fuel pump.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: April 1, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takuya Uryu, Yoshihiko Onishi, Tatsuya Ikegami
  • Patent number: 8672651
    Abstract: Provided is a fuel pump module used for a car, and more particularly, to a fuel pump module with a driver equipped inside a fuel tank capable of solving a problem of space limitation due to the installation of the driver by disposing the driver for controlling a BLDC fuel pump between a flange and a reservoir and mounting it in the fuel tank, minimizing the degradation in performance of the BLDC fuel pump caused by voltage drop and efficiency degradation due to a wire by reducing a length of a wire for electrically connecting the driver with the BLDC fuel pump, and achieving a sufficient heat radiation effect by directly transferring the heat energy generated from electrical devices such as FET, MCU, or the like, mounted in the driver to the fuel in the fuel tank through the case cover.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: March 18, 2014
    Assignee: Coavis
    Inventors: Wan-Sung Pae, Hyung-Min Kim, Kyeong-Hwan Kim, Inseok Sohn
  • Publication number: 20140060496
    Abstract: A method of controlling a liquefied petroleum gas (LPG) fuel pump may include driving a motor of the LPG fuel pump with a voltage of a predetermined duty, measuring a driving speed of the motor, changing the predetermined duty of the motor so that the measured driving speed of the motor reaches a target speed when the measured driving speed of the motor may be not equal to the target speed, measuring pressure of an LPG bombe and pressure of an injector, and changing the target speed when a first difference between the measured pressure of the LPG bombe and the measured pressure of the injector may be not maintained as a first predetermined value.
    Type: Application
    Filed: December 7, 2012
    Publication date: March 6, 2014
    Applicant: Hyundai Motor Company
    Inventors: Chang Ho Ham, Pil Seon Choi
  • Publication number: 20140053814
    Abstract: A diesel fuel pump module for use within a diesel fuel tank includes a reservoir defining a fuel storage volume. A jet pump having an inlet is positioned within the reservoir and configured to pump fuel from the tank into the reservoir. The module further includes an electric pump having an inlet and an outlet, and an air separation chamber connecting the electric pump outlet to the inlet of the jet pump.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 27, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Paul E. Fisher, Paul Mason, Charles Newell, III
  • Patent number: 8616184
    Abstract: A fuel pump module includes a reservoir and a sender gauge. The reservoir includes an outer wall, an inner wall spaced radially inward from the outer wall, and through-hole sockets spaced around a perimeter of the reservoir to define N zones between the inner and outer walls, where N is an integer greater than one. The sender gauge is mounted to the reservoir in one of the N zones.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: December 31, 2013
    Assignees: DENSO International America, Inc., Denso Corporation
    Inventor: Patrick Powell
  • Patent number: 8573185
    Abstract: An anomaly in a high-pressure fuel system of an internal combustion engine is diagnosed early on and with high precision, and, further, the anomaly site is identified.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: November 5, 2013
    Assignee: Hitachi, Ltd
    Inventors: Ryusei Miura, Yoichi Iihoshi, Akihito Numata, Eisaku Fukuchi, Yoshikuni Kurashima
  • Patent number: 8562303
    Abstract: A fuel supply system has an in-tank module. The in-tank module is provided with a pump, a filter, a pressure regulator and a pressure sensor detecting a fuel pressure. The pressure sensor is disposed on or at a vicinity of the fuel pump so that the pressure sensor easily detects a pulsation component due to the pump. A fuel pump controller includes a speed detection module which detects the rotation speed of the fuel pump based on a cycle of the pulsation component of the pressure detected by the pressure sensor. Thus, the rotation speed of the fuel pump can be indirectly detected by means of the pressure sensor.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: October 22, 2013
    Assignee: Denso Corporation
    Inventors: Hideyuki Mori, Katsuhiko Nakabayashi
  • Patent number: 8561595
    Abstract: Provided is a driver-integrated type BLDC fuel pump module, which is used in a vehicle and in which a driver used for controlling the operation of a BLDC fuel pump is installed in a flange of the BLDC fuel pump module, thus removing the spatial limit caused when the driver is installed and reducing the length of an electric wire electrically connecting the driver to a BLDC fuel pump of the module, thereby solving the problem of the operational performance of the BLDC fuel pump deteriorating as a result of both the voltage drop in the electric wire and a reduction in the operational efficiency of the pump.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 22, 2013
    Assignee: Coavis
    Inventors: Se Dong Baek, Kyoung Hwan Kim, Wan Sung Pae
  • Publication number: 20130269659
    Abstract: A vehicle fuel pump assembly, method of construction thereof, and a fuel tank assembly is provided. The fuel pump assembly includes a non-conductive plastic reservoir and an electrically powered fuel pump disposed in the reservoir. The fuel pump is configured to receive fuel through an inlet and to dispense fuel through an outlet. A fuel filter assembly having a non-conductive plastic housing is disposed in the reservoir and a coating of conductive material is bonded to the housing. A conductive lead is configured in electrical communication with the coating and is further configured for attachment to an electrical ground.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 17, 2013
    Inventor: John E. Troxler