Excess Fuel Returned To Tank Patents (Class 123/514)
  • Patent number: 10690096
    Abstract: A suction filter includes a filter screen and a filter opening portion while the filter opening portion communicates between a cavity and an outside of the filter screen. A connector includes: a connector main body, which is shaped into a tubular form; a connector inlet, which is connected to the filter opening portion; a connector outlet, which is connected to a suction inlet of a fuel pump; and a connector opening portion, which communicates between an inside and an outside of the connector main body. A jet pump includes: a jet pump main body, which is shaped into a tubular form; a jet pump inlet, which is connected to the connector opening portion; a jet pump outlet, which is formed at the other end of the jet pump main body; and a jet nozzle, which discharges the fuel from a nozzle outlet toward the jet pump outlet.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: June 23, 2020
    Assignee: DENSO CORPORATION
    Inventor: Norihiro Hayashi
  • Patent number: 10670188
    Abstract: A system for filling an LPG vehicle with LPG using an auxiliary bombe is provided. The system may be configured for easily filling a main bombe with LPG even in the hot season (summertime) or the like during which the outside temperature rapidly rises, by using an auxiliary bombe in addition to using the main bombe. The system may also be capable of always smoothly refilling the main bombe with LPG by moving a portion of the LPG in the main bombe to the auxiliary bombe, when the pressure in the main bombe is higher than the LPG filling pressure of a filling gun in the hot season during which the outside temperature rapidly rises, so that the pressure in the main bombe becomes lower than the filling pressure.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: June 2, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chang Han Kim, Jae Hwa Park, Jong Ki Kim, Jae Min Lee, Keun Soo Kim
  • Patent number: 10648437
    Abstract: A fuel pump includes a mechanical regulating valve arranged in a pump body which modulates the pressure in a high pressure space so that the pressure matches the engine demand. Modulation by the regulating valve requires adjustment of the inlet fuel quantity, adjustment of the volume of the high pressure space, and control of a return fluid communication enabling fuel to exit the high pressure reservoir.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: May 12, 2020
    Assignee: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA
    Inventors: Arnaud Leblay, Adrien Bossi, Guy Hoffmann
  • Patent number: 10619599
    Abstract: A fuel supply system for propane and other LPG fuels is disclosed for internal combustion engines such as spark-ignited direct-injection (SIDI) engines, with features that help manage both liquid and gaseous phases of the LPG fuel. Preferably adapted for use with replaceable fuel canisters, the ECM-managed system has a hot-soak vapor purge system as well as various sensors and valves to prevent excessive boil-off and to otherwise manage the heat and the related liquid-vapor balance of the fuel supply.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: April 14, 2020
    Assignee: EControls, LLC
    Inventors: Michael Walser, Kennon Guglielmo
  • Patent number: 10549631
    Abstract: An in-tank fuel pump assembly may have a mounting flange with a plurality of first coupling features, a fuel pump, a carrier connected to the fuel pump, a plurality of second coupling features on at least one of the carrier and the fuel pump, and a plurality of supports each connected to one or the first and second coupling features to locate the pump relative to the mounting flange. In some embodiments, at least one coupling feature is movable.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: February 4, 2020
    Assignee: Walbro LLC
    Inventors: Jeffrey D. Hanby, Kevin L. Israelson, Douglas W. Salowitz, Jr., Roger N. Smith, David L. Speirs, Russell R. Speirs
  • Patent number: 10519908
    Abstract: A merge and discharge unit has: a reservoir unit in which fuel can be collected; a first merge unit for merging into the reservoir unit the fuel from an upstream site upstream of the merge and discharge unit on a fuel supply route; a second merge unit for merging into the reservoir unit the fuel from a first fuel return route; a first discharge unit for discharging a portion of the fuel of the reservoir unit into a downstream site downstream of the merge and discharge unit on the fuel supply route; and a second discharge unit for discharging a remaining portion of the fuel of the reservoir unit into a second fuel return route.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: December 31, 2019
    Assignee: Kubota Corporation
    Inventors: Akiyoshi Ono, Takahiro Hisada, Mamoru Kawaguchi, Daisuke Yasunobe, Norifumi Adachi, Hisashi Tsukatani, Mitsuhisa Kanata
  • Patent number: 10519905
    Abstract: A fuel system for a motor vehicle includes a fuel pump having a first pump outlet connectable to an engine fuel inlet and a second pump outlet, a fuel pump module including an internal volume, a fuel pump module outlet is arranged in the internal volume fluidically connected to the second pump outlet, and a fuel valve is fluidically connected to the second pump outlet. The fuel valve is operable to fluidically isolate the fuel pump from the fuel pump module when fuel in the internal volume reaches a selected fuel level.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 31, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dale F. Klein, Manoharan Thiagarajan, William L. Villaire, Kristin M. DeMare, Edward J. Strzelecki, Jeffery J. Milton
  • Patent number: 10520136
    Abstract: A vehicle has a fuel system that includes a controller that determines when the vehicle is in a refuel mode or a run mode based on a connection of a refuel nozzle to a vehicle connection of the vehicle. The controller controls a fuel pump input selector, a vehicle fuel pump, and a fill/run fuel selector such that fuel is pumped from a storage tank external to the vehicle into a vehicle fuel tank by way of the vehicle fuel pump in the refuel mode, and fuel is pumped to an engine of the vehicle from the vehicle fuel tank by way of the vehicle fuel pump in the run mode.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: December 31, 2019
    Assignee: Blossman Services, Inc.
    Inventors: Jessie W. Johnson, David Alexander Kennedy
  • Patent number: 10358013
    Abstract: A vehicle includes a drive motor arranged in an engine compartment, a fuel-operated vehicle heater arranged in the engine compartment, a fuel tank, a fuel line (22) leading from the fuel tank to the vehicle heater, as well as a cooling air line arrangement (46). The cooling air line arrangement (46) envelops the fuel line (22) in at least some areas for providing a cooling air flow duct (50) for cooling air flowing around the fuel line (22).
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: July 23, 2019
    Assignee: Eberspächer Climate Control Systems GmbH & Co. KG
    Inventors: Günter Eberspach, Hans Jensen
  • Patent number: 10253733
    Abstract: A fuel system includes a cooling fuel supply line that conveys a flow of cooling fuel from a storage tank to a mixing device. An upstream fuel return line conveys a flow of heated fuel to the mixing device from an internal combustion engine. The flow of the heated fuel from the upstream fuel return line mixes with the flow of cooling fuel from the cooling fuel supply line in the mixing device to form a flow of mixed fuel. A downstream fuel return line conveys the flow of mixed fuel from the mixing device to the storage tank. The mixing device includes a flow restrictor operable to generate a low pressure zone relative to a fluid pressure of the flow of cooling fuel in the cooling fuel return line that draws the flow of the cooling fuel through the cooling fuel supply line and into the mixing device.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: April 9, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: William L. Villaire, Edward J. Strzelecki, Manoj R. Chaudhari, Peter Hubl
  • Patent number: 10233874
    Abstract: A fuel heating apparatus includes a fuel filter head having an upper side, a fuel inlet and a fuel outlet. A fuel filter is disposed on the fuel filter head including an unfiltered fuel plenum and a filtered fuel plenum inside the fuel filter. A heating element is disposed inside the filtered fuel plenum inside the fuel filter. One or more temperature sensors are included inside the fuel filter in some embodiments. The heating element and temperature sensor are connected to a thermostat to regulate the temperature inside the fuel filter to prevent gelling of fuel. Additionally, in some embodiments, a heat exchanger is disposed on the fuel line between the fuel tank and the engine. A working thermal fluid passes through the heat exchanger in thermal contact with the fuel. Heat transfer between the working thermal fluid and the fuel preheats the fuel prior to delivery to the engine.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: March 19, 2019
    Assignee: CT Energy Holdings, LLC
    Inventors: Todd E. Smith, Calvin Whitaker, Frederick M. Shofner, Rick P. Dye
  • Patent number: 10173884
    Abstract: A fueling data collection unit associated with a fuel transfer apparatus and for use with a system for managing fueling transactions of a fleet operator using fuel transfer apparatuses at one or more locations includes a fueling data interface module and a temperature compensation module. The temperature compensation module compensates for a volume variance of the fuel as a result of temperature variance from the standard temperature data to determine a volume correction factor at the measured fuel temperature, while the temperature compensation module uses the measured fuel temperature to determine a compensated, more accurate volume and/or mass of fuel dispensed through the fuel meter. In this way, the fuel data collection unit can accurately measure the volume and/or mass of fuel being delivered. This allows the provider and the recipient to more accurately sell/buy what was actually delivered and can avoid over-filling a fueling order.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: January 8, 2019
    Assignee: QT TECHNOLOGIES
    Inventors: Gerasimos A. Portocalis, David A. Conley, Steven T. Jackson
  • Patent number: 10082115
    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: Grant
    Filed: December 7, 2015
    Date of Patent: September 25, 2018
    Assignee: EDELBROCK, LLC
    Inventors: Robert Samuel Simons, Chadron Michael Magana, Jamie Wagner
  • Patent number: 10012189
    Abstract: A fuel supply device includes a cover member attached to an opening of a fuel tank, a pump unit including a pump, and a connecting portion which connects the cover member and the pump unit. The pump unit is connected so as to be relatively movable with respect to the connecting portion when a connecting shaft which is formed as part of one of the connecting portion or the pump unit, is inserted into the connecting hole formed as part of the other of the two. The connecting hole has an elongated hole portion that allows the connecting shaft to move in the upward and downward directions, and allows the pump unit to be relatively movable with respect to the connecting portion. The pump unit includes an engagement portion abutting a lower terminal end of the connecting portion when the fuel supply device is attached to the fuel tank.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: July 3, 2018
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Takayuki Kondo, Koji Yoshida, Tatsuki Fukui, Shinya Higashi, Takuya Kono, Yuichi Murakoshi, Akihiro Yano
  • Patent number: 9964081
    Abstract: A fuel system includes an air residence chamber operative to receive fuel from a fuel tank and allow degassed air to separate from fuel to an upper portion, and a boost pump including a boost pump inlet and a boost pump outlet. The boost pump inlet is in fluid communication with a lower portion of the air residence chamber to pump fluid from the air residence chamber. The system also includes an accumulator in fluid communication with the boost pump outlet. The accumulator includes a reservoir having a reservoir inlet in fluid communication with the boost pump outlet and a reservoir outlet. The accumulator also includes a piston slidably disposed in the reservoir. The piston is operative to push fluid through the reservoir outlet when a pump pressure of the boost pump drops below a predetermined pressure value.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 8, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Steven A. Heitz
  • Patent number: 9938942
    Abstract: A fuel supply system includes a fuel pump having a bottom inlet end configured to pick up fuel and a top discharge end configured to discharge fuel at a pressure higher than that of the inlet end. A housing defines a pressure vessel in fluid communication with the discharge end of the fuel pump. The fuel pump is secured with respect to the housing so that the pressure vessel is laterally adjacent the fuel pump and the pressure vessel and the fuel pump have overlapping heights. Exactly one check valve is positioned between the discharge end of the fuel pump and the pressure vessel, and the check valve is spaced laterally away from the discharge end of the fuel pump at an inlet to the pressure vessel.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: April 10, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Paul Mason, Hans-Peter Braun
  • Patent number: 9850865
    Abstract: A swirling wall structure-extends from a lower side toward an upper side in a sub-tank, and a fuel flow, which is outputted into an inside of the sub-tank from a flow outlet of a diffuser passage opened toward a lateral side, is swirled by the swirling wall structure. The swirling wall structure-includes a curved wall surface and a U-turn wall surface. The curved wall surface is curved about a longitudinal axis, which extends from the lower side toward the upper side in the sub-tank, to bend the fuel flow outputted from the flow outlet. The U-turn wall surface extends continuously from the curved wall surface to make a U-turn of the fuel flow, which is bent by the curved wall surface.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 26, 2017
    Assignee: DENSO CORPORATION
    Inventors: Norihiro Hayashi, Kiyomori Kobayashi
  • Patent number: 9828931
    Abstract: A fuel injection apparatus for an internal combustion engine includes a fuel supply line in communication with a fuel tank and a fuel pump system. A fuel rail is connected to the fuel supply system and a plurality of fuel injectors. A return line extending from the fuel rail to the fuel tank. A by-pass passage extending from the supply line to the return line and including a pressure release valve having a pre-set activation pressure. A fuel temperature sensor for sensing a feed temperature of the fuel in the fuel supply system. A pressure control module that sets a first pressure set point in the fuel rail below the pre-set activation pressure when the feed temperature is below a predetermined temperature and sets a second pressure set point above the pre-set activation pressure of the pressure release valve when the feed temperature is above the predetermined temperature.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: November 28, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: William L. Villaire, Philip A. Yaccarino, Peter Hubl, Mitchell E. Hart
  • Patent number: 9644583
    Abstract: A fuel pipe protective structure includes a fuel pipe, a connecting member, and a protective member. The protective member is to protect a connection between the fuel pipe and the connecting member. The protective member includes a base and a cover. The base is to be connected to a vehicle body wall that defines an engine compartment. The cover is to be interposed between the connection and an internal combustion engine so as to cover the connection. The cover includes a guide. The guide is configured to cause the protective member to be plastically deformed in order to displace the connection in a receding direction in which the connection moves to avoid being caught by the internal combustion engine in a case where the internal combustion engine moves toward a vehicle interior upon collision of the vehicle.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: May 9, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kazuya Ishiki, Eiji Nishijima
  • Patent number: 9617927
    Abstract: A method for supplying fuel to a direct injection fuel pump of an internal combustion engine is described. In one example, pressure and/or temperature of a fuel supplied to the direct injection fuel pump may be adjusted to ensure liquid fuel is supplied to the direct injection fuel pump so that the possibility of engine air-fuel ratio errors may be reduced.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: April 11, 2017
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 9546752
    Abstract: A device for detecting fuel leaks in a vehicle is provided. The device includes a body configured to be mounted in sealing engagement around a portion of a fuel line in the vehicle; and a collection chamber configured to collect fuel that leaks from the fuel line within the body. The body is configured to direct the fuel leaked from the fuel line to the collection chamber. At least a portion of the body or collection chamber is transparent to enable presence of the fuel leaked from the fuel line to be visually verified. The collection chamber is operatively connected to a drain connector.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: January 17, 2017
    Assignee: UNION PACIFIC RAILROAD COMPANY
    Inventors: Michael E. Iden, Thomas A. Kennedy
  • Patent number: 9541024
    Abstract: Methods and systems are provided for monitoring fuel level indicator noise in a sealed fuel tank system. In one example, the method includes comparing the outputs of a fuel level indicator and fuel tank pressure sensor in a sealed tank. If the outputs of both the fuel level indicator and the fuel tank pressure sensor outputs are noisy, then it may be determined that the fuel level indicator noise is mechanical in nature. However, if the fuel level indicator output is noisy while the fuel tank pressure sensor output is not noisy in the sealed tank, then it may be determined that the fuel tank pressure sensor noise is electrical in nature.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: January 10, 2017
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed M. Dudar
  • Patent number: 9506433
    Abstract: A fuel supply system for an internal combustion engine may include a first tank and a second tank connected to each other via a fuel line. A first pump and a first fuel filter may be arranged between the first tank and the second tank. A second fuel pump and a second fuel filter may be arranged between the second tank and the engine. The first fuel filter may have a water separator. A first return line may be fluidly connected to the engine on an inlet side and to the second tank on an outlet side and/or the first fuel filter on a raw side. A preheating valve may be arranged in the first return line and be configured to distribute the fuel flowing back from the engine to the first fuel filter and/or the second tank. A second return line may connect the first and second tank.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: November 29, 2016
    Assignee: Mahle International GmbH
    Inventors: Matthias Gänswein, Joern Wetzel, Stefan Jauss
  • Patent number: 9422892
    Abstract: Methods and systems are provided for injecting liquid and gaseous fuel, such as propane, to an engine. In one example, under a first condition, liquid fuel from a bottom of a fuel tank is injected; under a second condition, liquid fuel from a the bottom of the fuel tank is vaporized and injected to the engine as vaporized liquid fuel; and under a third condition, gaseous fuel from a top of the fuel tank is injected to the engine.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: August 23, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 9416758
    Abstract: Embodiments may provide a fuel filter that may include a plurality of return fuel conduits axially traversing a filter medium. Each conduit may include an inlet in fluidic communication with the fuel recirculation passage. Each conduit may have a return fuel line exit port adjacent to a distal end of the filter medium.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: August 16, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Eric Myers, Paul Victor Budgen
  • Patent number: 9394866
    Abstract: A fuel supply system includes a fuel pump configured to pump fuel from a first fuel storage location to an engine. A jet pump is configured to receive an auxiliary supply of fuel from the fuel pump and to return the auxiliary supply of fuel plus an additional flow of fuel drawn from a second fuel storage location to the first fuel storage location. A jet pump supply line has an inlet in fluid communication with an outlet of the fuel pump and has an outlet coupled to an inlet of the jet pump. A jet pump return line has an input coupled to an outlet of the jet pump and has an outlet adjacent to the fuel pump. A shut-off valve operates to selectively limit fuel flow through the jet pump return line.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: July 19, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Paul E. Fisher, Paul Mason
  • Patent number: 9388777
    Abstract: A fuel delivery system is described in the present disclosure. The fuel delivery system includes a kidney loop filtration system for filtering fuel stored in a tank. The kidney loop filtration system is fluidly connected to the tank and to a fuel transfer pump. The kidney loop filtration system includes a pump, at least one primary filter, and a swing-check valve. The swing-check valve allows flow of fuel in a first direction in a first mode of operation and in a second direction in a second mode of operation. The swing-check valve further includes a flow passage and a perforated flap. The perforated flap filters fuel during the flow of fuel, in the second direction.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: July 12, 2016
    Assignee: Caterpillar Inc.
    Inventor: Chad F. Ahmad
  • Patent number: 9303605
    Abstract: A fuel supply system for supplying a bi-fuel engine with a first fuel type, e.g., gasoline, includes a cooling circuit. The cooling circuit circulates the first fuel type through a direct injection pump assembly to prevent the first fuel type from overheating within the direct injection pump assembly.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 5, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Craig D. Marriott, Ben W. Moscherosch
  • Patent number: 9267445
    Abstract: A method for adjusting a fuel composition to increase liquid fuel heat tolerance is described that includes directly injecting a first fuel (such as liquid propane) to the engine via a fuel rail when a fuel temperature falls below a threshold; and in response to a fuel temperature greater than a threshold, directly injecting a liquid mixture of the first fuel and a second fuel (such as gasoline) via the fuel rail. For example, gasoline may be added in sufficient amounts to the liquid propane to ensure the mixture remains a liquid during engine operations. In this way, the amount of gasoline introduced into the propane may be based on an extent of the fuel temperature above the threshold which further acts to extend the operating range of the first fuel.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: February 23, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Patent number: 9181902
    Abstract: An object of the invention is to increase efficiency in an operation of joining an upper shell and a lower shell and to enhance reliability of a fuel tank against leakage. The fuel tank according to the present invention includes: a fuel tank body (10m) which is constituted by an upper shell (12) and a lower shell (14); a fuel supply device (30) which is installed in the fuel tank body (10m) and pressure-feeds fuel in the fuel tank body (10m) to an internal combustion engine (E) of a vehicle; and a fuel vapor treating apparatus (20) which is configured to enable adsorption of fuel vapor, wherein the fuel supply device (30) and the fuel vapor treating apparatus (20) are mounted to the upper shell (12), and pipe (20a), (20p), (20t), (43), and (31) and wires (44) and (32) of the fuel supply device (30) and the fuel vapor treating apparatus (20) are configured to penetrate a wall of the upper shell (12).
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: November 10, 2015
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Junya Kimoto
  • Patent number: 9163596
    Abstract: A thermal recirculation valve (TRV) is described that provides for effective fuel module heating during cold operation to mitigate fuel waxing or gelling issues. The TRV allows for the control of heated return fuel flow into the module dependent upon the module's outlet fuel temperature without the return fuel directly contacting the wax element. The wax element is isolated from direct contact with the higher temperature return fuel through use of an elastomeric seal which prevents return fuel from directly contacting the wax element. In addition, the wax element is positioned in the fuel outlet of the module.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: October 20, 2015
    Assignee: Cummins Filtration IP, Inc.
    Inventors: Andrew J. Fisher, Eric R. Burgan, J Bradley Groom
  • Patent number: 9133798
    Abstract: The invention relates to a tank arrangement (2), comprising a fuel tank (4) comprising at least one fuel chamber (6, 6a, b), a tank installation unit (8) arranged in the fuel tank (4), a fuel pump element (10) arranged in the installation unit (8) and designed to make fuel (12) available from the tank arrangement (2) to a fuel user (14), a pump unit (6, 16a, b) arranged in the fuel chamber (6, 6a, b) and operatively connected to the fuel pump element (10) and designed to convey fuel (12) out of the fuel chamber (6, 6a, b) into the tank installation unit (8), and a pressure regulating element (18), functionally arranged between fuel pump element (10) and pump unit (16). The arrangement is characterized in that the pressure regulating element (18) is designed as a mechanical pressure regulator.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: September 15, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Gutscher, Andreas Posselt, Marko Lorenz
  • Patent number: 9038657
    Abstract: According to the present disclosure, a fuel supply system having a recirculation loop is provided. The fuel supply system comprises a fuel tank; a return line coupled fluidly to the fuel tank; a fuel manifold; and a recirculation loop, wherein the return line is coupled fluidly to the recirculation loop at a first node to return fuel from the recirculation loop to the fuel tank, and the recirculation loop comprises a heat exchanger positioned downstream of the fuel manifold and upstream of the first node. The recirculation loop may comprise an orifice positioned upstream of the heat exchanger and downstream of the fuel manifold. Additionally, the fuel supply system may further comprise a supply line coupled fluidly to the fuel tank and further coupled fluidly to the recirculation loop at a second node positioned upstream of the fuel manifold and downstream of the first node.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: May 26, 2015
    Assignee: DEERE & COMPANY
    Inventors: Galen B. Wilkinson, Robert J. Fry, Charles Klose
  • Patent number: 8960161
    Abstract: The present application relates to a fuel injection system of an internal combustion engine having an automatic stop-start system, the fuel injection system comprising a high pressure fuel pump, which via a fuel pump line delivers fuel towards a common fuel rail, to which a fuel return line is connected. It is proposed that the fuel return line comprise a control element system, which firstly discharges a fuel pressure to a fuel tank, when a first predefined pressure limit is reached in the fuel return line, and which secondly prevents a further flow of fuel from the return line into the fuel tank, but allows a flow of fuel from the fuel tank into the fuel return line, so that the return line is designed as a fuel pressure accumulator.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: February 24, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Leonhard Bartsch, Dietmar Hermann, Claus Maerschank, David van Bebber
  • Patent number: 8955545
    Abstract: Provided is a fuel tank system wherein the liquid levels of fuel in two fuel storage portions can be equally maintained, and the fuel amount in each fuel tank can be estimated with a high degree of accuracy. The fuel tank system is provided with a fuel tank in which a main tank portion and a subsidiary tank portion are formed; a siphon tube which extends from the main tank portion to the subsidiary tank portion, to transfer fuel from one tank portion to the other tank portion; and an electronic control unit (ECU) for determining whether or not the fuel is transferred via the siphon tube (in the transfer state). The ECU determines that the fuel is in the transfer state when the change rate of a sender signal is equal to or less than a predetermined threshold value (VF_th).
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: February 17, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shinya Murabayashi, Tamon Kimura, Kiyofumi Shida, Hiroaki Watanabe, Kengo Kobayashi, Yutaka Utsumi
  • Patent number: 8944030
    Abstract: The fuel supply apparatus optimizes the timing of performing the fuel pressure change indication and the fuel injection timing to suppress the real fuel injection amount from being differentiated from the target fuel injection amount even at the time of the fuel pressure being changed, thereby improving fuel consumption. The ECU judges that the fuel pressure change request is generated (“YES” in Step S11), and calculates the change retarding time t1 (Step S12) when the fuel pressure is at the low pressure side, and the ECU determines that the vehicle is in the warming-up state, or that the fuel is at the high temperature. The ECU sets the change timing to avoid the timing of injecting the fuel from overlapping the changing timing of the fuel pressure with reference to the injection timing of the fuel injection control (Step S13).
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: February 3, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toru Suda, Koji Yoshida, Katsunori Kamiya
  • Patent number: 8931261
    Abstract: A pump component is removed from a port of a suction-side fluid cavity of a high-pressure fluid pump. The pump component performs a pump function for the high-pressure fluid pump. A primary coupler connects to the port. The pump component connects to the primary coupler. A diverter fluid passage diverts a low-pressure fluid from the primary coupler to an auxiliary fluid delivery system. The primary coupler communicates the low-pressure fluid through the pump component and primary coupler to the port.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: January 13, 2015
    Assignee: Cummins Emission Solutions Inc.
    Inventors: John T. Carroll, III, Laszlo D. Tikk
  • Patent number: 8925523
    Abstract: A fuel pressure relief valve is positioned along a fuel circuit of an internal combustion engine. The pressure relief valve includes a valve body, a first plunger positioned within the valve body, a second plunger positioned within the first plunger, and a valve plug securing the first and second plungers in the valve body. A spring is positioned between the valve plug and the second plunger. Fuel leakage into the pressure relief valve causes the pressure relief valve to lift undesirably in the absence of excessive fuel pressure. The undesirable lifting undesirably affects the operation of the fuel rail and causes wear and shortened life of the pressure relief valve. The first plunger has at least one relief passage or groove located on an exterior surface, relieving the undesirable pressure buildup from a chamber formed between the valve body and the first plunger, eliminating undesirable liftoff events.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: January 6, 2015
    Assignee: Cummins Intellectual Property, Inc.
    Inventors: Deepak Sahini, W. Joseph Satterfield, Robert P. Erickson, Jeffrey J. Sullivan, Donald J. Benson
  • Patent number: 8899263
    Abstract: The invention relates to a fuel injection system having a return line connector, having a return inlet and at least two return outlets. To improve the service life of the fuel injection system, a check valve device, which prevents the passage of a fluid from the return outlets to the return inlet is integrated with the return line connector. A return line connector is provided for each fuel injector in the fuel injection system.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: December 2, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Marc Oliver Roehner, Paulo Jorge Ferreira Goncalves
  • Patent number: 8881764
    Abstract: A fuel system for an aircraft includes a fuel collector downstream of a boost pump and upstream of an engine fuel pump.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: November 11, 2014
    Assignee: Sikorsky Aircraft Corporation
    Inventors: David R. Smith, Joe James Burg, Robert R. Rogstad
  • Patent number: 8839764
    Abstract: In a fuel supply system for heavy oil common-rail injection systems for internal combustion engines, including a tank (1), a primary feed pump (3) for delivering heavy oil from the tank (1) to a high-pressure pump (5), wherein the high-pressure pump (5), via at least one high-pressure line (12), is connected to a high-pressure accumulator (rail) (6) feeding at least one injector (8), and, furthermore, a purge valve (9), which is connected to the high-pressure accumulator via a separate high-pressure line (15) for directing at least a portion of the heavy oil back into the tank (1) via a return line, the purge valve (9) includes a valve member (28) which is movable between an opened and a closed position, a high-pressure connection for a high-pressure line (15) communicating with a heavy oil high-pressure accumulator (rail) (6), a low-pressure connection for a return line, and actuating means for actuating the valve member (28), wherein the valve seat (29) of the valve member (28) is designed as a sliding seat
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: September 23, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Christian Graspeuntner, Joachim Lackner, Johannes Schnedt
  • 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: 8826889
    Abstract: The invention relates to a machine tool having working field illumination disposed in a housing, having an illumination mechanism and a transparent element which allows the light from the illumination mechanism to be led out toward the working field. A light beam can be deflected between the illumination mechanism and the transparent element. According to the invention, the transparent element forms a region of the housing.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: September 9, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Brigitte Roth
  • Patent number: 8820350
    Abstract: Provided is a fuel pump module in which a portion of fuel transmitted from a fuel pump provided in a reservoir or fuel returned from an engine is supplied to a first jet and a second jet and a portion of the fuel is supplied from a first jet tower to a second jet tower through a connection tube connecting the first jet tower and the second jet tower to each other when the returned fuel passes through the first jet and the second jet and is then jetted to each of the first jet tower and the second jet tower to fill an inner portion of the second jet tower with the fuel, such that the fuel in a second space part of a fuel tank is rapidly transmitted, thereby making it possible to stably supply the fuel to the engine.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: September 2, 2014
    Assignee: Coavis
    Inventors: Joonseup Kim, Wookeun Lee
  • Patent number: 8789512
    Abstract: A fluid pressure regulating device is i) provided with a pressure regulating member that forms a pressure regulating chamber inside a housing having introduction side and discharge side fuel passages, and communicates these passages according to introduced fuel pressure, and ii) is able to regulate the fuel pressure introduced into a fuel passage to a set pressure. The housing is provided with outer and inner annular valve seat portions that separate the fuel passages inside the pressure regulating chamber, and form another fuel passage inside the pressure regulating chamber. Different clearances are set between the pressure regulating member, and the outer annular valve seat portion and the inner annular valve seat portion, such that when the pressure regulating member abuts against one of the valve seat portions, a small gap is formed between the other valve seat portion and the pressure regulating member.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: July 29, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisan Kogyo Kabushiki Kaisha
    Inventors: Masaki Akagi, Hiromasa Suzuki, Hideaki Nishibu, Koji Yoshida, Yuichi Murakoshi
  • Publication number: 20140174410
    Abstract: Embodiments may provide a fuel filter that may include a plurality of return fuel conduits axially traversing a filter medium. Each conduit may include an inlet in fluidic communication with the fuel recirculation passage. Each conduit may have a return fuel line exit port adjacent to a distal end of the filter medium.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Eric Myers, Paul Victor Budgen
  • Patent number: 8757132
    Abstract: A fuel vapor processor has a fuel tank configured to reserve fuel, a canister containing adsorbent capable of adsorbing fuel vapor vaporized in the fuel tank, a separator receiving a fuel vapor containing gas from the fuel tank, a regulator controlling the volume of the fuel vapor containing gas supplied to the separator, and a suction unit capable of removing the fuel vapor from the canister. The separator selectively passes the fuel vapor therethrough in order to divide the fuel vapor containing gas into a first gas mainly containing the fuel vapor and a second gas having a fuel vapor density lower than the first gas. The suction unit suctions the first gas from the separator in order to return the first gas into the fuel tank. The second gas is introduced into the canister or is released into the atmosphere.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: June 24, 2014
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventor: Katsuhiko Makino
  • Patent number: 8739821
    Abstract: A fuel introduction member is connected to an open end of a siphon tube which constitutes a part of a fuel tank. The fuel introduction member is provided with an opening through which a fuel is introduced from the tank into the siphon tube and from the siphon into the tank, a lid portion which is swung by the hydraulic pressure from the siphon tube so as to open the opening, and a float member which floats on the fuel in accordance with the rise of a fuel liquid surface in the tank to displace the lid portion in order to open the opening.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: June 3, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shinya Murabayashi, Kengo Kobayashi
  • Patent number: 8733324
    Abstract: This disclosure relates a system for heating fuel supplied by a common rail fuel supply to an internal combustion engine. The system includes a high pressure fuel line, plural fuel injectors connected in series along the high pressure fuel line in the common rail, and a continuous low pressure passage including a heat exchanging portion in close proximity to the high pressure fuel line. A heated fluid source is operative to fluidly communicate with the continuous low pressure passage and circulate heated fluid to heat fuel present in the high pressure fuel line prior to, and during a cold start operation of the internal combustion engine. Other embodiments relate to a method of providing fuel to an internal combustion engine that includes sensing the temperature of fuel supplied to a fuel system and determining whether the sensed fuel temperature is greater than a predetermined value.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: May 27, 2014
    Assignee: Cummins Intellectual Properties, Inc.
    Inventors: Norman C. Blizard, Thomas O. Hahn, Cary J. Marston, Damon C. Salo, Kent A. Lobsiger
  • Patent number: 8720485
    Abstract: A fuel system for use in a fuel tank having first and second tank portions includes first and second fuel pumps in the first and second tank portions, respectively. A first fuel reservoir is provided in the first tank portion and a second fuel reservoir is provided in the second tank portion. A first crossover fuel line extends between the first and second tank portions, and a second crossover fuel line extends between the first and second tank portions. A first jet pump in the first tank portion communicates with the first crossover fuel line for transferring fuel through the first crossover fuel line to the second tank portion, and a second jet pump in the second tank portion communicates with the second crossover fuel line for transferring fuel through the second crossover fuel line to the first tank portion.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: May 13, 2014
    Assignee: Robert Bosch GmbH
    Inventor: R. Paul Mason