Common Rail System Patents (Class 123/456)
  • Patent number: 11346300
    Abstract: A method for learning an opening time of an injector for an engine of a vehicle may include applying, by a controller, an injection start command to the injector supplying fuel to the engine; determining, by the controller, a fuel pressure change amount in a fuel rail supplying the fuel to the injector after the injection start command is applied; and learning, by the controller, an opening delay time of the injector based on the determined fuel pressure change amount.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 31, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yong Sik Kim
  • Patent number: 11339738
    Abstract: A system and a method of controlling the temperature of fuel injected into combustion engines, which provides a reduced amount of fuel injected into engines propelled with either pure gasoline or ethanol or any bi-fuel mixture by precisely controlling the amount of heat supplied to the fuel.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: May 24, 2022
    Assignee: ROBERT BOSCH LIMITADA
    Inventors: Fernando Lepsch, Marcello Francisco Brunocilla, Fernando de Oliveira Junior
  • Patent number: 11286874
    Abstract: A method of operating a fuel injection system for a motor vehicle includes one or more of the following: operating a fuel injector to perform a fuel injection, the fuel injector being in fluid communication with a fuel rail; sampling a rail pressure in the fuel rail during the fuel injection; regulating the rail pressure at a desired injection pressure, Pinj, to the fuel injector; measuring an overall leakage on variations of the rail pressure across an engine cycle for the motor vehicle and between two engine positions of an internal combustion engine for the motor vehicle; and restarting a new measurement cycle for a new pressure measurement target.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: March 29, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Andrea Mollar, Stefano Nieddu, Paul Leondardo Claude
  • Patent number: 11274642
    Abstract: A fuel rail assembly for delivering fuel to at least one fuel injector. The assembly includes a main pipe defining a passageway through which fuel passes to the fuel injector. A fastener mount is forged with the main pipe such that the fastener mount is integral with the main pipe. The fastener mount defines a first aperture configured to receive a fastener for mounting the main pipe. A wire harness mount is forged with the main pipe such that the wire harness mount is integral with the main pipe. The wire harness mount defines a second aperture configured to cooperate with a coupling member of a wire harness. The fastener mount and the wire harness mount are on a common side of the main pipe.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: March 15, 2022
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventors: Garrett Stewart, Yuki Takeuchi, Steven Roseborsky
  • Patent number: 11274638
    Abstract: A fluid heating device includes a pressurizing chamber configured to store a working fluid and a heat accumulator disposed in the pressurizing chamber. The heat accumulator includes a heat accumulating member configured to release heat by receiving a pressure applied to the working fluid. The fluid heating device has improved actuation efficiency.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 15, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshitaka Nakamura, Kentaro Shii, Kou Sugano, Tatsuya Nakamura, Yusuke Ogihara, Ryuichi Ozaki
  • Patent number: 11248572
    Abstract: A fuel distributor, which is in particular used as a fuel distribution rail for mixture-compressing, spark-ignited internal combustion engines, including a base body, at which at least one high-pressure inlet and multiple high-pressure outlets are provided. An insert element is furthermore provided that is situated in an interior of the base body. In the interior, the insert element separates an inflow area, which extends from the high-pressure inlet to the high-pressure outlets, at least essentially from a damping area. The insert element is designed as a thin-walled insert element that forms a divider extending through the interior at least from the high-pressure inlet to the high-pressure outlets.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: February 15, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Schenck Zu Schweinsberg, Klaus Joos, Markus Amler, Michael Bauer
  • Patent number: 11236682
    Abstract: A fuel pump system for a turbomachine engine can include a boost pump driven by an electric motor and configured to be in fluid communication with a fuel tank, a primary pump configured to be driven by a shaft connected to the turbomachine engine, wherein the primary pump is in fluid communication with the boost pump downstream of the boost pump by a boost branch, a bypass flow branch that connects the boost branch to a downstream branch that is downstream of the primary pump, the downstream branch is in fluid communication with one or more metering valves and/or one or more fuel nozzles, and a bypass valve disposed in the bypass flow branch and/or the downstream branch and configured to selectively directly fluidly communicate the boost branch and the downstream branch.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: February 1, 2022
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Leo J. Veilleux, Jr., Lubomir A. Ribarov
  • Patent number: 11230999
    Abstract: An injector includes a nozzle portion to inject fluid, a coil to generate a driving force to open and close the nozzle portion, and a molded resin that seals the coil. A cooling jacket has a flow path to cause cooling fluid to flow therethrough. The cooling jacket houses the injector and has an opening in an end opposite to the nozzle portion. A sealing material is filled in a space between the cooling jacket and the molded resin.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: January 25, 2022
    Assignee: DENSO CORPORATION
    Inventor: Shoichi Itami
  • Patent number: 11215154
    Abstract: The damper mechanism used for a high-pressure fuel supply pump is configured so that an outer circumferential surface of a cover in regard to the thickness direction of the base material of the cover engages with the inner circumference of an open end part of a bottomed tubular concave part formed in a damper housing or in a pump housing of the high-pressure fuel supply pump. The total height of the damper as a low-pressure pulsation reducing mechanism can be reduced, and the dimensions of the damper in the radial directions can also be reduced. In cases where the damper mechanism is formed integrally with the high-pressure fuel supply pump, the total height of the high-pressure fuel supply pump can be reduced and the dimensions of the damper part in the radial directions can also be reduced.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: January 4, 2022
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Atsuji Saito
  • Patent number: 11215151
    Abstract: An emergency operation method for actuating a fuel pump after a first temperature threshold for an actuation electronics system of the fuel pump has been exceeded including reducing a power consumption of an electric motor that drives a pump stage by the actuation electronics system by reducing a rotational speed until a monitored temperature value falls below a second temperature threshold below the first temperature threshold. Emergency operation method is initiated after the first temperature threshold is exceeded by a fault signal output by the actuation electronics system to an engine control unit is communicatively connected to the actuation electronics system. The fault signal, as long as it is output, is used to suppress a specification for the rotational speed of the electric motor on the part of the engine control unit and instead to specify the rotational speed by way of the actuation electronics system.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: January 4, 2022
    Assignee: Vitesco Technologies GmbH
    Inventor: Rolf Graf
  • Patent number: 11199168
    Abstract: A distributor apparatus of a common rail system for an internal combustion engine. The distributor apparatus is designed with at least one distributor device having a high-pressure line for fuel and a plurality of feed lines branching off from the high-pressure line within the distributor device. Each feed line leads to an individual accumulator and an injector. The feed line is associated with a restriction device and a discharge bore, which is designed to cooperate with a pressure-measuring device and which is arranged downstream of the restriction device, such that the restriction device is arranged in the feed line and the discharge bore, arranged in the distributor device, is connected to the feed line downstream of the restriction device.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: December 14, 2021
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Robby Gerbeth, Oscar Blasco, Hubert Lugger, Frank Mlicki, Thilo Kreeb
  • Patent number: 11193445
    Abstract: A fuel pump pressure-feeds fuel to an accumulation container that accumulates high-pressure fuel. A fuel injection valve injects high-pressure fuel accumulated in the accumulation container to an internal combustion engine. A fuel pressure sensor detects a fuel pressure in the accumulation container. A fuel pressure acquisition unit acquires the fuel pressure detected with the fuel pressure sensor. A reference computation unit computes a required injection quantity and an injection start timing based on an operation state of the internal combustion engine at a predetermined reference computation timing, which is set for each combustion cycle of the internal combustion engine, and further to compute an injection time period based on a fuel pressure acquired by the fuel pressure acquisition unit at the reference computation timing. A correction unit corrects the injection time period based on the fuel pressure acquired by the fuel pressure acquisition unit at the injection start timing.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: December 7, 2021
    Assignee: DENSO CORPORATION
    Inventor: Masami Nakamura
  • Patent number: 11181085
    Abstract: Present application discloses fuel supply device which includes: fuel injection valves respectively arranged on center axes of cylinders, fuel injection valves being configured to inject fuel into the cylinders; fuel distribution portion configured to distribute fuel to fuel injection valves; and fuel supply tubes configured to form supply paths for fuel from fuel distribution portion to fuel injection valves. Fuel distribution portion includes connection portions arranged in arrangement direction so as to be connected to fuel supply tubes. Connection portions include pair of reference connection portions situated at positions distant from each other in arrangement direction by distance between respective bore center axes of cylinders. Fuel supply tubes include pair of fuel supply tubes respectively connected to pair of reference connection portions and two fuel injection valves on two cylinders arranged adjacently to each other. Pair of fuel supply tubes have a common shape.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: November 23, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Hiroshi Sumimoto, Tomohiro Sunada
  • Patent number: 11162450
    Abstract: A method is disclosed of controlling operation of a fuel injector in response to measuring a quantity of fuel injected by the fuel injector from a fuel accumulator to an engine cylinder during operation of a fuel pump that delivers fuel to the accumulator, comprising: determining an average pressure of the fuel accumulator during a first time period before a fuel injection event; predicting a mass of fuel delivered to the fuel accumulator during a pumping event (Qpump); determining an average pressure of the fuel accumulator during a second time period after the fuel injection event; estimating a leakage of fuel; computing the injected fuel quantity by adding the average pressure during the first time period to Qpump, and subtracting the average pressure during the second time period and the leakage; and using the computed injected fuel quantity to control operation of the fuel injector.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: November 2, 2021
    Assignee: Cummins Inc.
    Inventors: Tommy J. Albing, David Michael Carey
  • Patent number: 11156182
    Abstract: A method for controlling an internal combustion engine, in which, based on a rail pressure signal, a first characteristic variable is specified that indicates a misfire, a misfire being recognized when the rail pressure signal does not have the expected curve.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: October 26, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Florian Reiling, Eduard Moser, Joerg Maas
  • Patent number: 11156194
    Abstract: To obtain a gasoline direct injection rail in which a large load is unlikely to be concentrated on a boundary part between a rail body and an end cap, and damage to the boundary part can be prevented, even when high pressure is applied to the inside of the rail body. The gasoline direct injection rail comprises an end cap 4 composed of a top plate 5 and a circumferential wall 6, and a rail body 1 having an end part 2 in which the circumferential wall 6 of the end cap 4 is inserted and placed, wherein an inner circumference of the end part 2 of the rail body 1 has a depression 3, the circumferential wall 6 is placed in the depression 3, and there is no level difference at a boundary part 12 between an inner circumferential surface 11 of the circumferential wall 6 and an inner circumferential surface 10 of the rail body 1.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 26, 2021
    Assignee: USUI CO., LTD.
    Inventors: Koichi Hayashi, Shuji Suzuki
  • Patent number: 11136935
    Abstract: A method of adaptively predicting, during operation of a pump, a mass of fuel pumped by the pump during a pumping event to a fuel accumulator (“Qpump”) to control operation of the pump is provided, comprising: generating an adaptive model of operation of the pump, including estimating a start of pumping (“SOP”) position of a plunger of the pump, estimating Qpump, determining a converged value of the estimated SOP position, and determining a converged value of the estimated Qpump; using the adaptive model to predict Qpump by inputting to the model the converged value of the estimated SOP position, a measured pressure of fuel in the fuel accumulator and a measured temperature of fuel in the fuel accumulator; and controlling operation of the pump in response to the predicted Qpump.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: October 5, 2021
    Assignee: Cummins Inc.
    Inventors: Tommy J. Albing, David Michael Carey
  • Patent number: 11136955
    Abstract: The invention relates to a device (10) for a common rail fuel injection system (102), wherein the device (10) comprises a one-piece module (12) which comprises a common fuel line (14) and a plurality of injector bodies (16) in fluid communication with the common fuel line (14). The present invention also relates to a vehicle (100) comprising such a device (10). The present invention also relates to a method of manufacturing a device (10) for a common rail fuel injection system (102).
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: October 5, 2021
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Guillaume Millet, Yannick Sailler, Julien Bouchot, Clement Starc
  • Patent number: 11118530
    Abstract: A fuel delivery system for a vehicle engine and a method are provided. A first valve in parallel with a first fuel pump fluidly couples a fuel line to a fuel tank. A second valve in parallel with a second fuel pump fluidly couples a fuel rail to the fuel line. A controller opens the first and second valves during a vehicle key-off state to relieve pressure in the fuel rail and drain fuel into the fuel tank. A vehicle is provided with a fuel tank, and a valve fluidly coupling a fuel rail and a fuel tank. A controller opens the valve during a vehicle key-off state to drain fuel from the fuel rail into the fuel tank and relieve pressure in the fuel rail, and closes the valve in response to a predicted key-on event during the vehicle key-off state.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: September 14, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Anthony Taba, Brendan F. Diamond
  • Patent number: 11105305
    Abstract: In some examples, a fuel injector rail assembly may include a fuel rail including a tubular body, with a fuel outlet passage formed through a wall of the tubular body. An injector cup may be connected to the tubular body and may include an injector chamber configured to receive a fuel injector. A first fuel passage formed in the injector cup may include a first diameter, and the first fuel passage may be connected to the fuel outlet passage of the tubular body. Additionally, a second fuel passage may be formed in the injector cup between the first fuel passage and the injector chamber. The second fuel passage may have a second diameter that is smaller than the first diameter of the first fuel passage.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: August 31, 2021
    Assignee: HITACHI ASTEMO AMERICAS, INC.
    Inventors: Anthony Boone, Prashanth Avireddi, Malcolm Mizuba, Su-Wei Sung, Minoru Hashida
  • Patent number: 11092078
    Abstract: The gas turbine engine includes a fluid system fluidly connecting at least two components of the gas turbine engine, and a tunable resonator in fluid flow communication with the fluid system. The tunable resonator has a resonating volume that varies as a function of a volume of an inflatable member located inside the tunable resonator. The inflatable member having a means for varying the volume of the inflatable member, to thereby tune the resonating volume to a selected frequency of pressure fluctuations or acoustic waves within the fluid system.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 17, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Ninad Joshi, Sid-Ali Meslioui
  • Patent number: 11085393
    Abstract: A control method for internal combustion engine with a fuel injection valve configured to directly inject fuel into a cylinder and an ignition plug configured to directly spark-ignite the fuel injected from the fuel injection valve includes comparing an actual behavior, which is an actual changing behavior of an engine revolution speed at an engine start, to a reference behavior set in advance, and switching from stratified combustion in which a fuel spray injected from the fuel injection valve and staying around the ignition plug is directly spark-ignited to homogeneous combustion in which a homogeneous air-fuel mixture is formed in a combustion chamber and the fuel is burned and increasing a mechanical compression ratio of the internal combustion engine as compared to the case where the actual behavior and the reference behavior match if the actual behavior is different from the reference behavior.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: August 10, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Futoshi Yoshimura, Yoshihiko Iwabuchi
  • Patent number: 11067024
    Abstract: A method for requirement-based servicing of an injector in a common-rail system in which, during ongoing operation of the engine, a current operating point is stored as a function of the rail pressure and of the fuel injection mass, and the current operating point is multiplied by a damage factor and is stored as a reference injection cycle as a function of the rail pressure as well as of the fuel injection mass. A total reference injection cycle is calculated by forming sums over the reference injection cycles, and a load factor is calculated as a function of the total reference injection cycle and the permissible injection cycles, and the load factor is set as decisive for the servicing recommendation of the injector.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: July 20, 2021
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Ion Madan, Michael Mohr, Rolf Pfeifer, Patrick Stöckle
  • Patent number: 11060731
    Abstract: A fuel supply assembly for a gas turbine engine comprises a plurality of fuel injectors configured for mounting circumferentially to an engine casing of the gas turbine engine and to be serially interconnected. At least one pair of the plurality of the fuel injectors has a first fuel injector including a first manifold adapter having a first outlet defined around a first outlet axis, and a first stem connected to the first manifold adapter at the first outlet and extending longitudinally along a first stem axis; and a second fuel injector including a second manifold adapter having a second outlet defined around a second outlet axis, and a second stem connected to the second manifold adapter at the second outlet, the first and second outlet axes being disposed circumferentially between the first and second stem axes.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: July 13, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Oleg Morenko, Aleksandar Kojovic, Bryan Micheal Bond
  • Patent number: 11053867
    Abstract: A method for operating an internal combustion engine with detection of the fuel used for injection is described. In the method, the elasticity modulus of the fuel to be injected is determined at a first and a second injection pressure. A difference value is calculated from the difference between the two elasticity modulus values related to the pressure difference and is compared with a differentiating value. The fuel being used is detected depending on whether the difference value is above or below the differentiation value. In particular, the method is used for differentiating diesel fuel EN590 and biodiesel.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: July 6, 2021
    Assignee: Vitesco Technologies GmbH
    Inventor: Michael Wirkowski
  • Patent number: 11008989
    Abstract: Various embodiments include a fuel rail assembly for an internal combustion engine comprising: an elongate, common fuel rail having a reservoir for a fuel supply; a plurality of adapters spaced along and fixed to a wall of the fuel rail for hydraulically connecting a respective fuel injector to the reservoir in the common rail; and a respective fuel passage associated with each adapter of the plurality of adapters, each fuel passage directing fuel from the reservoir to the associated adapter. Each fuel passage comprises an inlet end open to the reservoir and an upstream end section adjacent to the inlet end having a length and a cross-sectional area forming a smoothing function to smooth pressure fluctuations in the fuel entering the respective passage.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 18, 2021
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Giandomenico Serra, Gisella Di Domizio, Ivo Lorenz
  • Patent number: 10995717
    Abstract: A collecting pressure line (1) for a fuel injection system of an internal combustion engine has a flow-traversable interior (9). The collecting pressure line (1) has at least one injector that is flow-traversable with the aid of a throughflow opening (8). Fluid present in the collecting pressure line (1) is injected with the aid of the injector into a combustion chamber of the internal combustion engine. An elastic member (10) is formed in the interior (9) and is designed to be flow-traversable while bearing against a line inner wall (15) and spaced apart from the throughflow opening (8).
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: May 4, 2021
    Inventors: Joachim Gruenberger, Hartmut Voss
  • Patent number: 10982636
    Abstract: The present invention relates to a method for producing an internally pressurized component (1), having the steps of: providing a main body (2) with a longitudinal cavity (3) and with an attachment flange (6) for attachment of the internally pressurized component (1), providing a (80), introducing a through-bore (7) that extends longitudinally through the attachment flange (6) and has two opposite openings (70, 71) with respect to the longitudinal axis (L7), inserting the pin (80) into the through-bore (7) such that the pin (80) is arranged flush with the attachment flange (6) on the side of one of the openings (70) and extends from this opening (70) through the through-bore (7) and through the other opening (71) in order to project from the attachment flange (6), materially bonding the pin (80) to the attachment flange (6), and introducing a longitudinal bore (81) into the pin (80) to form an attachment sleeve (8). The invention also relates to a corresponding internally pressurized component (1).
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: April 20, 2021
    Assignee: Hirschvogel Umformtechnik GmbH
    Inventors: Florian Renner, Thomas Sellmann, Florian Geiger
  • Patent number: 10968857
    Abstract: A method and system is provided of controlling a pump having a pumping element configured to provide pressurized fuel to a common rail accumulator coupled to a plurality of fuel injectors configured to inject fuel into a corresponding plurality of cylinders of an engine, comprising: receiving rail pressure values indicating a current fuel pressure in the accumulator; and responding to the received at least one rail pressure value by controlling operation of the pumping element during each potential pumping event of the pumping element to generate actual pumping events during at least some of the potential pumping events to cause the rail pressure values to remain within a desired range and to at least one of increase an overall efficiency of the pump, decrease audible noise generated by the pump, increase reliability of the pump and reduce injection pressure variations at the plurality of fuel injectors.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: April 6, 2021
    Assignee: Cummins Inc.
    Inventors: Donald J. Benson, Paul Peavler
  • Patent number: 10947941
    Abstract: An assembly for fuel-injection systems for connecting a fuel injector to a fuel-conveying component includes a retaining part that is used for mechanical fastening, and an attachment part, to which the fuel injector is hydraulically connectable. A connecting part is provided via which the attachment part, that is connectable to the fuel-conveying component, is connectable to the retaining part.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 16, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Daniel Schneider, Heiko Gruschwitz, Herbert Blob, Ingo Rettig
  • Patent number: 10934955
    Abstract: Methods and systems are provided for injector balancing without disabling a cam actuated high pressure fuel pump. In one example, one of a plurality of cam lobes of the pump is selectively and sequentially disabled while a group of injectors are concurrently operated to learn a pressure drop across each injector. The selection of the injectors is based on the identity and stroke timing of the disabled cam lobe.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: March 2, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Pursifull, David Oshinsky, Paul Hollar, Joseph Thomas, Michael Uhrich
  • Patent number: 10934981
    Abstract: A positive crankcase ventilation system for an internal combustion engine routes blowby gases into the intake of the engine. Because the blowby gases have about 12% water vapor, during cold-weather operation, the water vapor may freeze in the PCV valve or in the port that couples the PCV duct with the intake manifold. In situations in which the PCV duct is pointing toward the direction of flow of the intake gases, a hood or cap is placed over the end of the tube according to the present disclosure. It can be as simple as a 90-degree elbow or multiple openings in the cap. A centerline of the openings is perpendicular or at an obtuse angle with respect to the direction of flow in the duct so that the intake gases do not directly access the openings and cause freezing in the openings (or ports).
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 2, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Christopher William Newman, Sandra Davidson Osip
  • Patent number: 10927783
    Abstract: A method for identifying a continuously injecting combustion chamber of an internal combustion engine which has an injection system with a high-pressure accumulator for a fuel, having the following steps: time-dependent sensing of a high pressure in the injection system; starting a continuous-injection detection process at a starting time while the internal combustion engine is operating; identifying a start time of a pressure drop which occurs chronologically before the starting time and at which the high pressure in the injection system begins to drop if continuous injection has been detected; and identifying at least one combustion chamber to which the continuous injection can be assigned, on the basis of the start time of the pressure drop.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: February 23, 2021
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventor: Armin Dölker
  • Patent number: 10859049
    Abstract: A fuel pump includes a pump head defining a barrel in which a plunger is slidable to pressurise fuel in a pumping chamber, and a fluid-inlet path through which fuel flows in to the pumping chamber under control of an inlet valve during a plunger return stroke. The plunger causes pressurisation of the fuel in the fluid-inlet path. The fuel pump may also include a fluid-outlet path through which fuel flows out of the pumping chamber, preferably under control of an outlet valve, during a plunger pumping stroke.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: December 8, 2020
    Inventors: Engin Erdemir, Benjamin P. West, Gunay Cicek, Erol Kahraman
  • Patent number: 10844818
    Abstract: Various embodiments include a holding component for securing a fuel injector to an injector cup comprising: a U-shaped holding element with two parallel supporting arms for engaging opposite sides of an annular groove in the fuel injector to secure the fuel injector in the injector cup; a base part; two resilient arms extending from the base part for engaging the outer surface of the injector cup; and a depending leg engageable in a corresponding receiving part on the fuel injector to accurately position the fuel injector angularly relative to the injector cup.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: November 24, 2020
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Marco Pasquali, Andrea Puccini
  • Patent number: 10801457
    Abstract: A fuel rail assembly includes a fuel rail having a main conduit with a main fuel passage and a distribution conduit extending away from the main conduit and having a distribution passage extending therethrough which is in fluid communication with the main fuel passage, the distribution conduit having a distribution conduit primary threaded section, a distribution conduit secondary threaded section, and a distribution conduit sealing surface located axially between the distribution conduit primary threaded section and the distribution conduit secondary threaded section. A primary sealing nut threadably engages the distribution conduit secondary threaded section and a secondary sealing nut threadably engages the distribution conduit secondary threaded section.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: October 13, 2020
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Ravish S. Masti, Christopher M. Cass, Curtis D. Lamb
  • Patent number: 10794345
    Abstract: A fuel distributor features a pressure accumulator 2 with a longitudinal hollow space 3 to receive pressurized fuel. The pressure accumulator 2 possesses at least one threaded socket 7 which connects with the longitudinal hollow space 3 and which features interior threading 8, and into which a threading cap 11 with exterior threading 13 is inserted. The threading socket 7 features a sealing surface 16, which ends up being pressed onto a sealing seat 18 set up inside the pressure accumulator 2. According to the invention, a leakage channel 27 is formed within the threading cap 11. The configuration of the fuel distributor according to the invention with the leakage channel 27 in the threading socket 7 allows leakage testing under high pressure to be carried out during a short cycle or detection times, and with a high degree of precision.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: October 6, 2020
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Joerg Horstmann, Markus Mehring
  • Patent number: 10794346
    Abstract: A fuel rail for an engine includes a tubular body having an outer surface and an inner surface, the inner surface defining a longitudinally extending fuel bore. The fuel rail also includes a valve bore extending normal to the fuel bore and extending through the outer surface of the tubular body at a first end and completely through the fuel bore to a second end.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: October 6, 2020
    Assignee: Caterpillar Inc.
    Inventors: Matthew J. Engfehr, Brian M. Boksa, Brian S. Jones
  • Patent number: 10774954
    Abstract: A method for providing a fluid supply conduit configured to pass through a constrained environment, including providing a circular section tube of appropriate dimensions, die stamping the circular section tube so as to obtain an oblong section tube of oval section, providing a plurality of external stiffeners of hollowed out shape adapted to the external dimensions of the oblong section tube, assembling the external stiffeners around a portion of the section of the oblong section tube.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: September 15, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Edgar Batista, Nelson Caetano, Lore Marie Ricquemaque
  • Patent number: 10746096
    Abstract: A V-type 4-stroke internal combustion engine having 20 cylinders, having a counterclockwise or clockwise direction of rotation, comprising a crankshaft with a torsional vibration damper and a flywheel arranged on the crankshaft, wherein the crankshaft has crank throws forming a crank star, wherein in each case the piston rods of the two cylinders of a V-segment are connected to the same crank throw, wherein the crank throws C1 to C10 have one of the following angular sequences in the direction of rotation of the engine when seen from the side of the flywheel, with the crank throws numbered as C1 to C10 when starting from the side of the flywheel: (i) C1-C9-C4-C6-C3-C10-C2-C7-C5-C8, (ii) C1-C8-C5-C7-C2-C10-C3-C6-C4-C9, (iii) C1-C9-C5-C7-C3-C10-C2-C6-C4-C8, (iv) C1-C9-C7-C3-C6-C10-C2-C4-C8-C5, (v) C1-C7-C5-C8-C2-C10-C4-C6-C3-C9, (vi) C1-C9-C7-C3-C5-C10-C2-C4-C8-C6, (vii) C1-C6-C8-C4-C2-C10-C5-C3-C7-C9, (viii) C1-C5-C8-C4-C2-C10-C6-C3-C7-C9, (ix) C1-C8-C4-C6-C2-C10-C3-C7-C5-C9.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: August 18, 2020
    Assignee: LIBBHERR-COMPONENTS COLMAR SAS
    Inventors: Béchir Mokdad, Christoph Henninger
  • Patent number: 10731611
    Abstract: A fuel injection system includes a fuel rail, and a damper that is disposed inside the fuel rail. The damper includes outwardly protruding first barbs formed integrally on one end of the damper and outwardly protruding second barbs formed integrally on an opposed end of the damper. The first barbs and the second barbs each engage the fuel rail inner surface, whereby the damper is located and retained within the fuel rail. The first barbs and the second barbs may be generally triangular in profile and each extend at an acute angle relative to the damper longitudinal axis. In addition, the first barbs and the second barbs are each oriented in the same direction relative to the longitudinal direction, whereby the damper is asymmetric when viewed in side view.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 4, 2020
    Assignees: Robert Bosch LLC, Robert Bosch GmbH
    Inventors: Alfonso Emmanuel Guzman Escalante, Josue Israel Chavez Mendoza, John Casari
  • Patent number: 10683201
    Abstract: A MEMS device having a sensor system that is resiliently mounted on a carrier by means of spring elements. The air gap between sensor system and carrier is reduced by a damping structure present on one of facing surfaces of sensor system and carrier. The spring elements are at least partially accommodated within recesses of the damping structure. The height of the air gap is small enough to allow squeeze film damping.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: June 16, 2020
    Assignee: TDK Corporation
    Inventors: Pirmin Hermann Otto Rombach, Kurt Rasmussen, Anton Leidl, Wolfgang Pahl, Dennis Mortensen
  • Patent number: 10655584
    Abstract: To obtain a gasoline direct injection rail that enables plating treatment to be easily and reliably performed on the inside of a rail body and an inlet part, also, that includes an orifice, and that has excellent mechanical properties. In a gasoline direct injection rail comprising a steel rail body 4, an inlet part 6 provided integrally with or separately from a first end 5 of the rail body 4 and comprising therein a communication passage 7 in communication with a fuel passage of the rail body 4, and a plurality of injector holders in communication with the fuel passage, a stainless orifice member 1 formed separately from the rail body 4 is securely disposed in the communication passage 7 of the inlet part 6.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: May 19, 2020
    Assignee: USUI CO., LTD.
    Inventors: Hiroyuki Nishizawa, Shuji Suzuki
  • Patent number: 10655773
    Abstract: A structure for forming a fluid path is provided. The structure for forming a fluid path according to one embodiment of the present disclosure includes a body configured with first and second fluid paths which communicate with each other, and a third fluid path which is provided at a position, at which the first and second fluid paths are connected to each other, and communicates with the first and second fluid paths, and includes one or more among a first ball which is able to be disposed in the first fluid path, a second ball which is able to be disposed in the second fluid path, and a third ball which is able to be disposed in the third fluid path, wherein a diameter of the first fluid path is greater than that of the second fluid path, and the second ball is able to be disposed in the second fluid path by passing the first fluid path.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: May 19, 2020
    Assignee: MANDO CORPORATION
    Inventors: Chanhui Lee, Youngsong Lee
  • Patent number: 10612498
    Abstract: There is provided an intake manifold of a multicylinder engine capable of facilitating homogenization of concentration distribution of EGR gas in intake air and distribution of EGR gas into respective cylinders.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 7, 2020
    Assignee: KUBOTA Corporation
    Inventors: Mutsuhisa Ishihara, Yasushi Nakamura
  • Patent number: 10612479
    Abstract: Methods and systems are provided for cleaning one or more valve(s) that regulate an amount of fuel vapor routed to an engine of a vehicle in response to an indication that the one or more valve(s) are exhibiting degraded sealing properties. In one example, a method includes timing opening and closing events of the valve to coincide with higher than a threshold pressure differences across the valve as compared to lower than the threshold pressure differences in terms of pressure oscillations across the valve, the pressure oscillations stemming from an intake of the engine. In this way, the one or more valve(s) may be controlled to open under higher loads and stresses on the valve(s), which may dislodge debris, carbon buildup, etc., thus serving to clean the valve.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: April 7, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed M. Dudar, Thomas Leone, Kenneth Miller
  • Patent number: 10605212
    Abstract: A multi-fuel rail apparatus for an internal combustion engine communicates fuel from 10 a first fuel source and a second fuel source to a plurality of fuel injectors. Each fuel injector receives fuel from the multi-fuel rail apparatus through a branch connection for each fuel. The multi fuel rail apparatus has a first elongate member including a first longitudinal bore spaced apart from a second longitudinal bore and first and second fuel inlets for fluidly communicating first and second fuels into the first and 15 second longitudinal bores respectively. There is a branch connecting structure for each fuel injector along the first elongate member for fluidly connecting the first and second longitudinal bores with respective branch connections from respective fuel injectors.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 31, 2020
    Assignees: WESTPORT POWER INC., DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L.
    Inventors: Michael C. Wickstone, Alain M. J. Touchette, Randall T. Mark, Kory L. Zeller, Jeremy Garnier, Mark Graham, Mehmet Dönmez, Cüneyt Altinol, Michael De Bruijn
  • Patent number: 10570867
    Abstract: Various methods and systems are provided for a pressure relief valve of a fuel system. In one example, a valve includes a first chamber in fluid communication with a first fuel line, a second chamber in fluid communication with a second fuel line and in fluid communication with a fuel storage tank, a piston separating the first chamber from the second chamber, and a needle coupled to the piston and controlling a flow passage between the second fuel line and the second chamber, where the piston and needle are sized such that a force applied on the piston by the first chamber parallel to an axis of movement of the piston maintains the needle in a closed position when the first fuel line flows fuel at a first pressure and the second fuel line flows fuel at a second pressure, the second pressure greater than the first pressure.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: February 25, 2020
    Assignee: Transportation IP Holdings, LLC
    Inventors: Muthu Mailvaganan Anandhan, Pradheepram Ottikkutti, Shawn Michael Gallagher, Paul Lloyd Flynn
  • Patent number: 10550813
    Abstract: The present disclosure relates in general to injectors and, more specifically, to a fuel injection assembly that may be used in an internal combustion engine. In some embodiments, a fuel injection assembly may include: a fuel injector with a fuel inlet port and a fuel outlet end; and an injector cup with a recess receiving the fuel inlet port of the fuel injector through an opening of the recess. The injector cup comprises a collar extending circumferentially around the opening. The injector cup comprises a tab extending longitudinally beyond the opening in a direction towards the fuel outlet end. The tab projects axially beyond the collar in a longitudinal direction towards the fuel outlet end. The fuel injector comprises a pocket receiving the tab.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: February 4, 2020
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Gisella Di Domizio, Matteo Soriani
  • Patent number: 10539108
    Abstract: An arrangement for supplying high pressure fuel to a plurality of fuel injectors includes a housing defining a fuel chamber. The chamber is provided with a flow inlet from a high pressure fuel source and forms a first portion of flow path of the fuel, the chamber being fluidly connected to a conduit providing a second portion of flow path. The conduit has a plurality of outlets adapted to provide flow of high pressure fuel from the chamber via the conduit to a corresponding plurality of injectors via respective first outlet flow conduits. The second portion of flow path is substantially narrower than the first flow path, and includes a pressure sensor located in or adjacent to the conduit.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 21, 2020
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Noureddine Guerrassi, Junmei Shi, Didier Robart, Jean-Romain Benoit, Pierre Fougairolle