Gaseous Fuel And Air Mixer Patents (Class 123/527)
  • Patent number: 10473006
    Abstract: In some embodiments, there is provided a method of controlling a pressure gradient between a combustion chamber and a crankcase of an engine, the method having: receiving, at a control device, a signal indicating that a lubricant container is coupled to a lubricant circulation system associated with the engine, in response to the received signal, providing data to cause operation of a suction control device for facilitating control of the pressure gradient.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: November 12, 2019
    Assignee: Castrol Limited
    Inventors: Rana Ali, Steven Paul Goodier, Richard Pearson, Oliver Paul Taylor
  • Patent number: 10337419
    Abstract: A system and method for cylinder deactivation in a multi-cylinder diesel engine comprises pumping air in to an intake manifold of the diesel engine using a turbocharger. Air is pumped in to the intake manifold using an intake air assisting device. And, fuel injection is selectively deactivated to at least one of the cylinders in the diesel engine. An intake valve and an exhaust valve is selectively deactivated for the at least one of the cylinders of the diesel engine.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 2, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventors: James Edward McCarthy, Jr., Douglas John Nielsen
  • Patent number: 10316797
    Abstract: Methods and systems for accurate and precise fuel supply control for continuous-flow of gaseous fuel to an internal combustion engine over a large dynamic power range, including a dual-stage valve that allows optimal control—a first stage in the form of a voice-coil driven electronic pressure regulator, and a second stage in the form of a voice-coil-driven choked-flow valve; monitoring the pressure of the fuel intermediate the two stages and making appropriate adjustments to the first stage via a pressure actuator loop; feeding the gaseous fuel mixture through a unitary block assembly into the second stage; monitoring the pressure of the air/fuel mixture and making appropriate adjustments to the second stage via a valve actuator control loop.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: June 11, 2019
    Assignee: EControls, LLC
    Inventors: Michael W Walser, Randall W Walser, Christopher M Cole, Justin H Sanders, Joseph Grogan, Kenneth Shouse, Kennon Guglielmo
  • Patent number: 10294902
    Abstract: Present embodiments provide a throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The throttle body may provide improved fuel pathways through and about the throttle body in order to move fuel to opposed side. The throttle bodies may have improved configuration of the fuel injectors. Further, the throttle body may have computer mounted on the throttle body and a notch formed in the throttle body to define a wire routing pathway from the computer to the injectors.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: May 21, 2019
    Assignee: Holley Performance Products, Inc.
    Inventors: Laura Shehan, Amy Gieske, Jonathan Sams, Adam Layman, Douglas Flynn
  • Patent number: 10215127
    Abstract: Systems and methods may be provided for monitoring a fuel level of a vehicle. The fuel may be a gaseous fuel, such as natural gas. An electronic control unit may be able to receive a signal from one or more sensors. The electronic control unit may provide a command to drive a fuel gauge to display the fuel level. The electronic control unit may determine the gauge command based on the received signal and a filling compensation scheme. The electronic control unit may be initialized through a user interface. A filling compensation scheme may be selected during initialization. The electronic control unit may be capable of communicating various sensors, gauges, devices, controls and/or other ECUs of varying specifications.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: February 26, 2019
    Assignee: Agility Fuel Systems LLC
    Inventors: Todd Sloan, Chris Forsberg
  • Patent number: 10197012
    Abstract: A carburetor for supplying gaseous fuels in internal combustion engines, comprises a main body in which there are defined an intake section, a first pressure reduction section, a second pressure reduction section connected to the first section, a supply section connected to the second pressure reduction section, a Venturi device connected to the supply section, wherein the Venturi device forms a central portion of the carburetor, the first pressure reduction section and the supply section extending on opposite sides of the Venturi device, the second supply section being interposed between the first pressure reduction section and the supply section and wherein the supply section further comprises an actuating device that can to allow passage of gas through a third connecting conduit towards the third chamber.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: February 5, 2019
    Assignee: BIGAS INTERNATIONAL AUTOGAS SYSTEMS S.R.L.
    Inventor: Davide Cavagna
  • Patent number: 10151260
    Abstract: The invention relates to a procedure for a switching pressure calculation at a metering valve of a fuel metering device for metering fuel into an exhaust gas system of a combustion engine with a component that is assigned to the exhaust gas system of the combustion engine for a regeneration, for a temperature impinge and/or for a thermo management, whereby the fuel is injected before this component in streaming direction of the exhaust gas. The invention concerns furthermore a corresponding device for implementing the procedure.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: December 11, 2018
    Assignee: Robert Bosch GMBH
    Inventors: Guenter Keusen, Damian Dyrbusch, Volker Reusing, Stefan Stein
  • Patent number: 10145510
    Abstract: A fully contained, mobile, compressed natural gas (CNG), compressed breathing air, or other compressed gas refueling unit, and methods of use of said refueling unit, that use a pneumatically powered booster pump to provide a consistent, high pressure filling of CNG storage tanks without using an external power source.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: December 4, 2018
    Assignee: LUXFER-GTM TECHNOLOGIES, LLC
    Inventor: J. Michael Koonce
  • Patent number: 10113512
    Abstract: A gas mixer for mixing gaseous fuel and air for an internal combustion engine is disclosed. The gas mixer may have a housing defining an air path for mixing the gaseous fuel and the air within the air path. The housing may have a narrowed portion. The gas mixer may also have a displacement body axially displaceable and coaxially arranged within the air path. The displacement body and the housing may define an air passage disposed at the narrowed portion. The gas mixer may further have a fuel inlet fluidly connected to the air passage. The fuel inlet may be configured to supply gaseous fuel to the air passage. Further, the gas mixer may have an adjusting unit disposed at least partially within the air path. The adjusting unit may be connected to the displacement body and may be configured to axially displace the displacement body.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: October 30, 2018
    Assignee: Caterpillar Energy Solutions GmbH
    Inventors: Robert Böwing, Steffen Gruber
  • Patent number: 9874177
    Abstract: A device for mixing a gaseous fuel into an oxygen-containing gas flow of a gas-powered internal combustion engine includes a housing component having an inlet that connects to a gaseous fuel supply conduit and a slit that opens into an intake pipe. The slit has a longitudinal extension that is oriented approximately perpendicular to the axial direction of the intake pipe. A valve body is movable relative to the housing component. An annular gap between the valve body and an outlet opening of the housing component has a cross-sectional area that varies in accordance with changes in the position of the valve body relative to the housing component. The annular gap determines the flow-through cross-section of a passageway between the inlet and the outlet. Furthermore, a gaseous fuel flow exiting from the slit is directed approximately perpendicular to the axial direction of the intake pipe.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: January 23, 2018
    Assignee: NONOX B.V.
    Inventors: Peter-Josef Cremer, Hans-Peter Kraemer
  • Patent number: 9869278
    Abstract: A mixing device for introducing gaseous fuel into an intake passage of an engine, including a body, an annular channel within the body at least partially encircling the intake passage, the body defining a fuel inlet opening. The mixing device includes a plurality of gaseous fuel injectors arranged to discharge gaseous fuel into a fuel inlet manifold, a fuel connection passage extending between the fuel inlet manifold and the fuel inlet opening of the body, a diffuser positioned within the body to diffuse gaseous fuel from the annular channel into the intake airflow, and a valve positioned along the fuel connection passage and configured to selectively block fluid communication between the fuel inlet manifold and the fuel inlet opening of the body in response to a signal from at least one electronic controller programmed to execute control strategies controlling operation of the engine, the gaseous fuel injectors, and the valve.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: January 16, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Paul William Schwark, Justin Michael Kern
  • Patent number: 9863537
    Abstract: Check valves are disclosed that have a housing defining an internal cavity having a first port and a second port both in fluid communication therewith, and having a first seat defined by a first elastomeric V-ring seal and a second seat. and a check valve plate within the internal cavity that is translatable, in response to pressure differentials, between a closed position against the first seat and an open position against the second seat within the internal cavity of the housing. The first elastomeric V-ring seal includes a body having an interference fit to an annular channel defined by the housing and a lip extending from the body in a direction that defines a generally V-shaped void, viewed in cross-section, opening in a direction away from and generally perpendicular to the flow through the elastomeric V-ring seal into the internal cavity.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: January 9, 2018
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert
  • Patent number: 9856835
    Abstract: A fuel supply system for a reciprocating-piston engine includes a storage tank; a wall of the storage tank defining a first aperture and a second aperture therethrough; a first fuel injector fluidly coupled with the first aperture of the storage tank via a pressure control module and a first fuel injector supply conduit; a pump fluidly coupled with the second aperture of the storage tank; and a second fuel injector fluidly coupled with an outlet port of the pump via a second fuel injector supply conduit. The pressure control module is configured to maintain a pressure in the first fuel injector supply conduit within a pressure range that includes a pressure value that is less than a pressure inside the storage tank. The pump is configured to maintain a pressure inside the second fuel injector supply conduit that is greater than the pressure inside the first fuel injector supply conduit.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: January 2, 2018
    Assignee: Caterpillar Inc.
    Inventors: Dana Coldren, Glenn Cox, David Ginter, Alan Stockner, Martin Willi
  • Patent number: 9857802
    Abstract: A fuel control device or fuel valve assembly includes a valve for metering flow of gaseous fuel to an engine, a drive device associated with the valve to adjust the effective flow area of the valve, a flow meter with at least one fixed area orifice located upstream of the valve, and one or more sensors to measure predetermined parameters of the fuel flowing through the flow meter. A controller receives input from the flow sensor or sensors and a fuel demand signal from the engine control, calculates current flow rate based on the sensor inputs, and controls the drive device to adjust the valve flow area up or down depending on the difference between the calculated flow rate and current fuel demand signal.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: January 2, 2018
    Assignee: Continental Controls Corporation
    Inventors: Kristian W. Yates, David G. Fisher, Galina Laur, Hillary H. Grimes, III
  • Patent number: 9850845
    Abstract: Systems and methods may be provided for monitoring a fuel level of a vehicle. The fuel may be a gaseous fuel, such as natural gas. An electronic control unit may be able to receive a signal from one or more sensors. The electronic control unit may provide a command to drive a fuel gauge to display the fuel level. The electronic control unit may determine the gauge command based on the received signal and a filling compensation scheme. The electronic control unit may be initialized through a user interface. A filling compensation scheme may be selected during initialization. The electronic control unit may be capable of communicating various sensors, gauges, devices, controls and/or other ECUs of varying specifications.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: December 26, 2017
    Assignee: AGILITY FUEL SYSTEMS, INC.
    Inventors: Todd Sloan, Chris Forsberg
  • Patent number: 9790883
    Abstract: A system for sensing and controlling a fuel gas composition may include a plurality of micro-sensors mounted in a single chamber, with each of the micro-sensors being configured to sense a characteristic of a mixture of gaseous fuel introduced into the chamber. The system may also include a plurality of heating elements, with each of the heating elements being associated with one of the plurality of micro-sensors, and the plurality of heating elements being configured to implement a different temperature level at each of the micro-sensors.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: October 17, 2017
    Assignee: Caterpillar Inc.
    Inventor: Douglas Alexander Rebinsky
  • Patent number: 9702307
    Abstract: Methods and systems are provided for adjusting a phase of gaseous fuel delivered to fuel injectors of a fuel delivery system. In one example, a method may include adjusting a fuel pressure in a fuel delivery system to deliver fuel in each of a liquid and a gaseous phase during different engine operating conditions. The fuel pressure may be based on a temperature, composition, and desired phase of the fuel.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: July 11, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, Gopichandra Surnilla, Eric Warren Curtis, John Hedges, Mark Allen Dearth
  • Patent number: 9689363
    Abstract: A mixing device for introducing gaseous fuel into an intake airflow of an engine, the mixing device including an inlet, an outlet, an intake passage extending between the inlet and the outlet, an annular channel, and a plurality of fuel supply manifolds, each coupled to a main gaseous fuel inlet of the mixing device, and a separate plurality of gaseous fuel injectors coupled to each one of the plurality of fuel supply manifolds to receive gaseous fuel from the corresponding fuel supply manifold. The annular channel is configured to receive gaseous fuel injected from all of the separate pluralities of gaseous fuel injectors. The mixing device includes a diffuser, the diffuser arranged to receive gaseous fuel from the annular channel and operable to diffuse gaseous fuel from the annular channel into the intake airflow.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: June 27, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Todd Wallace Helsel, Robert Royall Edens
  • Patent number: 9683497
    Abstract: Methods and systems are provided for adjusting a throttle based on an intake oxygen sensor output. In one example, a method may include adjusting a position of a throttle based on a dilution threshold and a total aircharge dilution level, the total dilution aircharge level based on an output of an intake oxygen sensor. Additionally, spark timing may be adjusted based on the total aircharge dilution level.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: June 20, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Michael Howard Shelby, James Alfred Hilditch, Jason Williams
  • Patent number: 9624871
    Abstract: An apparatus and method for supplying gaseous fuel from a tender car to an internal combustion engine on a locomotive comprising storing the gaseous fuel at a cryogenic temperature in a cryogenic storage tank on the tender car; pumping the gaseous fuel to a first pressure from the cryogenic storage tank; vaporizing the gaseous fuel at the first pressure; and conveying the vaporized gaseous fuel to the internal combustion engine; whereby a pressure of the vaporized gaseous fuel is within a range between 310 bar and 575 bar.
    Type: Grant
    Filed: June 22, 2014
    Date of Patent: April 18, 2017
    Assignee: WESTPORT POWER INC.
    Inventors: Bradley E. Melanson, Melissa S. A. McKinnon, Paul M. Blomerus
  • Patent number: 9611810
    Abstract: A mixing device for introducing gaseous fuel and recirculated exhaust gas into an intake passage of an engine, the mixing device including a body, an annular channel, the body defining a fuel inlet opening, and a plurality of gaseous fuel injectors fluidly coupled to the fuel inlet opening such that gaseous fuel from the plurality of gaseous fuel injectors is conveyed into the annular channel through the fuel inlet opening. The mixing device further includes a diffuser at a position of the annular channel to diffuse gaseous fuel from the annular channel into the intake airflow in the intake passage, an exhaust gas recirculation (EGR) inlet opening defined by the body and in fluid communication with the intake passage, and an exhaust gas recirculation supply pipe coupled to the EGR inlet opening and configured to direct recirculated exhaust gas from the engine into the intake passage.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: April 4, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Paul William Schwark, Justin Michael Kern, Todd Wallace Helsel, Mohamed Moustafa El-Gammal
  • Patent number: 9605623
    Abstract: A method for equipping an engine with a mixing device for introducing gaseous fuel into an intake passage of the engine comprising the steps of providing a body through which the intake passage extends, wherein an annular channel encircles the intake passage, providing a fuel inlet manifold with injector receiving ports, each injector receiving port configured to receive a discharge end of a fuel injector, with each injector receiving port in fluid communication with the annular channel, and providing a fuel supply manifold including fuel injector ports, wherein each fuel injector port is configured to receive an upstream end of a fuel injector. The method further includes blocking at least one injector receiving port such that fluid communication through the injector receiving port is prevented, removably coupling fuel injectors between the fuel supply manifold and the unblocked injector receiving ports, and providing the mixing device to the engine.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: March 28, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Todd Wallace Helsel, Robert Royall Edens
  • Patent number: 9546588
    Abstract: A method of modifying the oil cooling system of a diesel engine includes the steps of removing the original equipment liquid-to-liquid heat exchanger and installing a manifold having a configuration adapted to match the mounting configuration of the oil passages of the original equipment liquid-to-liquid heat exchanger. The manifold has an oil outlet port directed to a remotely mounted oil cooler. The manifold also has a water passage having a configuration that is adapted to match the mounting configuration of the water passages of the original equipment liquid-to-liquid heat exchanger. The water passage causes the entirety of the flow of water to be discharged back to the water cooling system of the engine where it is circulated by the water pump through the water cooling passages in the engine.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: January 17, 2017
    Assignee: Neal Technologies, Inc.
    Inventors: Gene Neal, Kennieth Neal
  • Patent number: 9488113
    Abstract: An engine includes one or more cylinders configured to receive gaseous fuel for use in combustion. Two gaseous fuel injectors per cylinder, include: a first injector directed at the corresponding cylinder and having an injection capacity of a first amount of gaseous fuel per injection, and a second injector directed at the corresponding cylinder and having an injection capacity of a second amount of gaseous fuel per injection, the second amount being greater than the first amount. The engine is operable in a first mode in which a per-cylinder fuel demand is at or below the first amount, and only the first injector is operable for each cylinder. The engine is operable in a second mode in which the per-cylinder fuel demand is greater than the first amount, and only the second injector is operable for each cylinder.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: November 8, 2016
    Assignee: Robert Bosch GmbH
    Inventor: Justin Michael Kern
  • Patent number: 9353712
    Abstract: Fuel interface modules that can be used in automotive vehicle fuel systems can include a body that defines a fuel channel and a plurality of ports through which fluid communication with the fuel channel can be established. Some modules include a check valve, a shutoff valve, and a coalescing filter assembly that are each coupled with a separate port. The fuel modules can be quickly installed and can eliminate many of the installing materials typically associated with automotive vehicle fuel systems.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: May 31, 2016
    Assignee: Go Natural CNG, LLC
    Inventor: Matthew Matsukawa
  • Patent number: 9327708
    Abstract: Systems and methods for improving engine torque response are presented. In one example, engine idle speed is increased to shorten engine torque response based on engine operating conditions. The methods and systems may be useful for operating an engine that is supplied a gaseous fuel.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: May 3, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Thomas G. Leone
  • Patent number: 9303578
    Abstract: A single point fuel injection throttle body assembly including an idle air control circuit having an port opening into main intake bores downstream of the point of fuel distribution into the air stream. When the idle air control circuit is open, an air/fuel mixture, rather than simply air, is drawn into the into the intake manifold, thereby reducing the tendency for a lean fuel mixture at idle. A unique engine control unit “feed forward” algorithm controls the fuel injection as a function of the position of the idle air control motor so that as the idle air control circuit is opened, the pulse widths of the fuel injector signals are increased. This feature allows the initial open-loop-based fuel mixture supplied by system to be more accurate and eliminates rough unstable idle associated with closed-loop control lag times.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: April 5, 2016
    Assignee: MSD LLC
    Inventors: Michael Anthony Wittkopf, Todd Alan Petersen
  • Patent number: 9249935
    Abstract: A fuel supply system includes a fuel gas tank; a temperature detecting portion; a fuel gas discharge flow path; a main stop valve that is provided in the fuel gas discharge flow path; and a control portion. The main stop valve includes an inlet portion and an outlet portion, a main valve that is arranged between the inlet portion and the outlet portion and that opens and closes the fuel gas discharge flow path, a pilot flow path that is provided so as to communicate the inlet portion with the outlet portion, a pilot valve that opens and closes the pilot flow path, and an actuator capable of opening and closing the main valve and the pilot valve at different timings. The control portion opens the pilot valve and closes the main valve when the detected temperature is equal to or lower than a first reference temperature.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: February 2, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Eiji Okawachi, Kazushi Numazaki
  • Patent number: 9233679
    Abstract: Systems and methods for supplying gaseous fuel to an internal combustion engine are presented. In one example, a gaseous fuel pump is selectively activated to extend a vehicle's operating range. The methods and systems may be useful for operating an engine that includes directly injected gaseous fuel.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: January 12, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Thomas G. Leone
  • Patent number: 9194289
    Abstract: The object of the present invention is a methane pressure reducer/regulator for feeding internal combustion engines which comprises a body divided into three chambers, communicating with each other by means of high resistance conduits and by means of an opening/closing element which is integral with an elastic diaphragm, whose surface is proportionally larger than the opening/closing element so that a modest pressure in the chamber upstream from the elastic diaphragm is sufficient to bend it, overcoming both the methane pressure resistance in the adjacent chamber, and the methane pressure resistance in the chamber directly connected to the tank(s), as well as the counter spring resistance. When the elastic diaphragm bends, it pushes a stem whose end is integral with the opening/closing element that allows or prevents the methane passage through a hole connecting the chamber from which methane is sent to the engine to the chamber wherein methane comes directly from the tank(s).
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: November 24, 2015
    Assignee: ICOMET S.P.A.
    Inventor: Luciano Cippitani
  • Patent number: 9194337
    Abstract: A high-pressure direct injected gaseous fuel system comprising a fuel tank capable of storing fuel at a first pressure and a compressor including an inlet capable of receiving the fuel, and operative to supply, at an outlet, compressed fuel at a second pressure higher than the first. The system also includes an accumulator connected to the outlet and a plurality of injectors connected to the accumulator. The injectors are adapted to inject fuel directly into a combustion chamber. The system includes a pressure relief valve interconnecting the fuel tank and the outlet, wherein the pressure relief valve is operative to allow fuel flow between the fuel tank and outlet if the second pressure exceeds a threshold pressure.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 24, 2015
    Assignee: ADVANCED GREEN INNOVATIONS, LLC
    Inventors: Roy Edward McAlister, Kraig Hoekstra, Ryan Kemmet, David Grottenthaler, Dustin Wright
  • Patent number: 9188041
    Abstract: A system for reducing emissions in an engine is provided. The system includes a primary fuel tank having a primary fuel. The system also includes a secondary fuel tank having a secondary fuel. The system further includes a separator in fluid communication with the secondary fuel tank or the primary fuel tank or both the secondary fuel tank and the primary fuel tank, the engine and a hydrocarbon-selective catalytic reduction subsystem. The subsystem separator separates a less volatile portion of the secondary fuel or the primary fuel from a more volatile portion, said less volatile portion of the secondary fuel or the primary fuel in the separator is routed to the hydrocarbon-selective catalytic reduction subsystem and said more volatile portion of the secondary fuel or the primary fuel in the separator is routed to the engine.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: November 17, 2015
    Assignee: General Electric Company
    Inventors: Daniel George Norton, Edward Joseph Hall
  • Patent number: 9162027
    Abstract: A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 20, 2015
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Larry Brian Gray, Richard J. Lanigan, John Matthew Kerwin, Stephen Lewis Fichera
  • Patent number: 9146566
    Abstract: A fuel system (10) comprising a fluid blender (14) in fluid communication with a source of a first fuel composition and a source of a second fuel composition via at least one inlet (32, 34). The blender (14) is operable to receive at least the first fuel composition and/or second fuel composition via the at least one inlet (32, 34), and output a resultant fuel composition comprising the received fuel compositions via at least one outlet (36). The at least one outlet (36) is in fluid communication with an engine fuel injection device (38).
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: September 29, 2015
    Assignee: ROLLS-ROYCE plc
    Inventor: Peter Swann
  • Patent number: 9133779
    Abstract: Apparatus and methods for providing natural gas possessing at least one desired quality to at least one engine include providing raw natural gas and methane gas through first and second conduits, respectively. Based upon measurements of the desired quality or qualities of the raw natural gas, the electronic controller selectively varies the flow of methane gas to provide a blend of raw natural gas and methane gas that possesses desired quality or qualities to the engine(s).
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: September 15, 2015
    Assignee: BAKER HUGHES INCORPORATED
    Inventor: Ronnie D Hughes
  • Patent number: 9073556
    Abstract: The disclosure is directed to a fuel distribution system for a consist. The fuel distribution system may have a first locomotive, a second locomotive, and a tender car. The fuel distribution system may also have at least one pump located onboard the tender car, and at least one fluid conduit attached to the at least one pump. The at least one fluid conduit may be configured to deliver gaseous fuel from the tender car to the first and second locomotives.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: July 7, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Aaron Gamache Foege, Edward John Cryer
  • Patent number: 9068490
    Abstract: The invention relates to an injection nozzle (1) for injection of a reducing agent into an exhaust gas system (2) of an internal combustion engine for selective catalytic reduction, especially for atomization by means of compressed air or propellant gas, the nozzle (1) having at least one outlet opening, the nozzle (1) upstream of the outlet opening having a variable volume (8) which after completion of injection of the liquid is increased in order to draw gas from the vicinity (2) through the outlet opening into the nozzle (1).
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: June 30, 2015
    Assignee: Albonair GmbH
    Inventors: Werner Overhoff, Sascha Dolenec, Sebastian Muhlenbrock
  • Publication number: 20150144105
    Abstract: Disclosed is a liquefied petroleum fuel system for internal combustion engines that improves fuel economy by mixing vaporized liquid petroleum gas (LPG) and ambient air at substantially equal random kinetic energies. The system maintains a certain vapor pressure in the LPG tank and delivers the LPG in a gaseous phase to an LPG burning device at a set pressure and temperature. The cycle repeats as necessary to maintain the desired pressure in the tank.
    Type: Application
    Filed: May 2, 2014
    Publication date: May 28, 2015
    Applicant: GreenKraft
    Inventor: Henry Harness
  • Publication number: 20150136047
    Abstract: Disclosed here is an adaptive mixed-mode combustion method, which is mainly for internal combustion engines, either compression ignition or spark ignition, or mixed-mode engines using both compression ignition and spark ignition. The combustion method is composed of steps of partially charging fuel reformates through intake ports, or charging fuels with high ignition temperature through intake ports, wherein it has adaptive means to introduce fuels into combustion chamber space through both intake port fuel charge and direct fuel injections, based on engine loads and speeds, to produce a separate twin triangular heat release curves to effectively reduce emissions and fuel consumptions. A combustion engine using the disclosed combustion method is also provided. A corresponding method and fuel reformer of using exhaust energy for fuel reforming is also disclosed.
    Type: Application
    Filed: May 12, 2012
    Publication date: May 21, 2015
    Inventor: Deyang Hou
  • Patent number: 9032937
    Abstract: A fuel air mixer includes a fuel air mixing tube having an inlet, an outlet, and an inlet inner diameter. A collar is attached at the mixing tube inlet and includes a first cylindrical portion upstream of the mixing tube inlet, and a body portion encircling the mixing tube at the mixing tube inlet and forming a fuel reservoir around the mixing tube inlet. The first cylindrical portion is spaced from the mixing tube inlet to create a gap placing the fuel reservoir in fluid communication with the mixing tube inlet. The first cylindrical portion has an inner diameter that is smaller than the inlet inner diameter so air flowing through the first cylindrical portion and into the mixing tube inlet draws gaseous fuel from the fuel reservoir into the mixing tube through the gap.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: May 19, 2015
    Assignee: Caterpillar Inc.
    Inventors: Aaron C. Luft, Jordan P. Gilsinger
  • Patent number: 9027538
    Abstract: A gaseous fuel control system for a dual-fuel internal combustion engine comprising a plurality of valves for controlling the amount of gaseous fuel supplied to the engine. The valves have adjustable full-open flow rates and rapidly move from full-open to full-closed in response to a digital signal. An electronic system for monitoring at least one engine operating parameter maps the parameter value to control the opening and closing of the valves to establish a desired gaseous fuel flow rate.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: May 12, 2015
    Assignee: Hoerbiger Kompressortechnik Holding GmbH
    Inventor: Joseph M. Lepley
  • Publication number: 20150122231
    Abstract: A method to deliver natural gas (NG) to an internal combustion engine (ICE) via an fuel gas intake assembly is disclosed. The fuel gas intake assembly includes a gas intake manifold and at least one gas admission valve (GAV). The ICE is in fluid communication with the GAV. The method includes the provision of at least one lubrication introduction device, at least a portion of which is laden with a lubricant. The at least one lubrication introduction device is positioned downstream from the gas intake manifold and upstream from the GAV. A substantially pressurized NG is introduced into the gas intake manifold, which causes passage of the NG through the lubrication introduction device. This causes the NG to entrain lubricant from the lubrication introduction device, introduce the lubricant into the fuel gas intake assembly, and deposit the lubricant, at least partially, into the GAV.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Applicant: Caterpillar Motoren GmbH & Co. KG
    Inventor: Thorsten Tüxen
  • Patent number: 9004050
    Abstract: Embodiments for indicating fuel rail temperature sensor degradation are provided. In one embodiment, an engine method comprises delivering gaseous fuel to a cylinder based on feedback from a fuel rail temperature sensor, and during select conditions, indicating fuel rail temperature sensor degradation based on a difference between measured fuel rail temperature and an expected temperature. In this way, measured fuel rail temperature may be correlated with other engine temperatures to detect sensor degradation.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: April 14, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Ross Dykstra Pursifull
  • Publication number: 20150083090
    Abstract: A fuel delivery system for an internal combustion engine. The fuel delivery system includes a diaphragm carburettor for mixing air and fuel, a start preparation system for introducing fuel into the carburettor before a start of the engine, and a fuel enrichment system for providing an enriched fuel and air mixture when the engine is cranked.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 26, 2015
    Inventors: Paul Warfel, Neal Chandler, Darien LaCroix
  • Patent number: 8978627
    Abstract: A method of providing fugitive gases to an engine air supply. An air filter is positioned on the engine intake of said engine. The air filter creates a negative pressure in the engine intake downstream of the air filter. A source of fugitive gases pass to the engine intake and are collected by the negative pressure downstream of the air filter.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: March 17, 2015
    Assignee: Rem Technology, Inc.
    Inventor: Howard Leigh Malm
  • Patent number: 8983755
    Abstract: A control system for controlling a power output of a gas engine of the present invention includes a target value setting section for setting as a target value a restricted power output which is less than a predetermined power output when a source gas pressure of a gas fuel is less than a predetermined value required to inject the gas fuel against an intake-air pressure according to the predetermined power output, a power output setting section for setting a set value of a power output based on the target value set by the target value setting section, and a power output control section for controlling the power output so that the power output reaches the set value set by the power output setting section.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: March 17, 2015
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Tsukasa Imamura, Tomohiko Sugimoto
  • Publication number: 20150068500
    Abstract: It is an object of the present invention to provide an engine which can easily be produced. In an engine including an electronic throttle device, a control unit for controlling the electronic throttle device, and a gas fuel supply unit, a gaseous-fuel mixer is used as the gas fuel supply unit, and when an extending direction of a crankshaft is defined as a longitudinal direction and an engine cooling fan is defined as existing on a front side and a side opposite from the front side is defined as a rear side, a collector of an intake manifold extends in the longitudinal direction, the electronic throttle device is mounted on the rear side of the collector, and the gaseous-fuel mixer is mounted on the rear side of the electronic throttle device.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 12, 2015
    Inventors: Hiroshi INOUE, Yutaka TERUUMI, Kazuo KOJIMA
  • Publication number: 20150059340
    Abstract: An engine is disclosed. The engine may have an air box. The engine may further have an opening into the air box. The engine may additionally have a baffle positioned adjacent the opening. The engine may also have a cylinder defining an intake port, with the intake port positioned in the air box. The baffle may be configured to deflect air that passes through the opening to direct the air away from the intake port of the cylinder.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Applicant: Electro-Motive Diesel, Inc.
    Inventors: Deep Bandyopadhyay, Farhan Devani
  • Publication number: 20150059696
    Abstract: A fuel delivery system may be utilized in an internal combustion engine or a generator engine. The fuel delivery system includes a fuel injector and a venturi. The venturi provides a force for delivering the fuel into the manifold of the engine, and the fuel injector provides metering to control the amount of fuel delivered into the manifold of the engine. In one example, the fuel delivery system includes a first chamber configured to enclose a gaseous fuel, a second chamber configured to direct a flow of air through the venturi, and a plunger. The plunger is controlled to selectively connect and disconnect the first chamber and the second chamber to control the flow of the gaseous fuel into the second chamber under a differential pressure of the venturi.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 5, 2015
    Applicant: Kohler Co.
    Inventors: Isaac S. Frampton, Robert J. Danforth, III
  • Publication number: 20150040562
    Abstract: A gaseous fuel mixer for an internal combustion engine includes a check valve. The check valve includes a check valve member that induces mixing of a gaseous fuel flow and an intake air flow as the gaseous fuel flow and intake air flow move or pass from an upstream side of the check valve to a downstream side of the check valve.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 12, 2015
    Applicant: CUMMINS INC.
    Inventors: Alan C. ANDERSON, David P. RICHTER, Matthew Keith SEASE, Philip M. MEDALIE