Fuel Injection Pressure Governor Patents (Class 123/375)
  • Patent number: 11319900
    Abstract: A charge forming device includes a housing having an inlet chamber in which a supply of fuel is received, a vent passage communicating with the inlet chamber and a throttle bore with an inlet through which air is received, a throttle valve carried by the housing with a valve head movable relative to the throttle bore to control fluid flow through the throttle bore, a vent valve. The vent valve is carried by the housing and has a valve element that is movable between an open position wherein fluid may flow from the inlet chamber through the vent passage and a closed position where fluid is prevented or inhibited from flowing out of the inlet chamber through the vent passage, the vent valve being electrically actuated, and wherein the vent valve is actuated as a function of a pressure within the inlet chamber or the vent passage.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: May 3, 2022
    Assignee: Walbro LLC
    Inventors: Gary J. Burns, Albert L. Sayers
  • Patent number: 11041465
    Abstract: In at least some implementations, a charge forming device for a combustion engine includes a housing, a throttle valve and a vent valve. The housing has an inlet chamber in which a supply of fuel is received, a vent passage communicating with the inlet chamber and a throttle bore with an inlet through which air is received. The throttle valve is carried by the housing and has a valve head movable relative to the throttle bore to control fluid flow through the throttle bore. And the vent valve is electrically actuated, carried by the housing and has a valve element that is movable between an open position wherein fluid may flow from the inlet chamber through the vent passage and a closed position where fluid is prevented or inhibited from flowing out of the inlet chamber through the vent passage.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: June 22, 2021
    Assignee: WALBRO LLC
    Inventors: Gary J. Burns, Albert L. Sayers
  • Patent number: 8880254
    Abstract: Disclosed is an engine starting control method for a hybrid vehicle that includes a starting motor for starting an engine and a driving motor for driving a vehicle. More specifically, a control unit may be configured to accelerate a stopped engine, determine whether a current speed of the engine is greater than a predetermined value, inject fuel to the engine when the current speed of the engine is greater than the predetermined value, determine a torque of the starting motor based on a target speed of the engine, and control a speed of the engine based on the determined torque of the starting motor.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: November 4, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Kak Choi, Sang Joon Kim
  • Patent number: 7948192
    Abstract: A dual redundant permanent magnet type dynamoelectric machine includes a dual flux throttle system to selectively disable one of a first motor and a second motor.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: May 24, 2011
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Richard A. Himmelmann
  • Patent number: 7509205
    Abstract: A speed control system is for a vehicle having an engine including a carburetor with a throttle plate moveable between a minimum open position and a maximum open position. The speed control system includes a ground speed limiter mechanism operatively coupled with the throttle plate and configured to displace the plate toward the minimum position as ground speed of the vehicle approaches a predetermined maximum value. An engine speed limiter mechanism is operatively coupled with the throttle plate and is configured to displace the plate toward the minimum position as a speed of the engine approaches a predetermined maximum value. Preferably, a control linkage is connected with the throttle plate and is moveable between a first configuration, at which the throttle plate is disposed at the minimum position, and a second configuration at which the throttle plate is disposed at the maximum position, the two limiter mechanisms displacing the linkage.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: March 24, 2009
    Assignee: Club Car, Inc.
    Inventor: Paul Warren McLeod
  • Patent number: 4945881
    Abstract: A fuel control for an engine using a liquid fuel mixture of two fuels such as gasoline and alcohol has a fuel composition sensor and stores a fuel composition value derived from the sensor near the end of one period of engine operation. That value is used in place of the actual fuel composition sensor output for a predetermined time at the start of the next period of engine operation. The predetermined time is at least long enough for the fuel movement caused by the fuel pump to remix separated fuel in the vicinity of the fuel composition sensor and may conveniently be the period of time from the initiation of fuel pump activity until the time that fuel from the tank would be expected to at least reach the sensor.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: August 7, 1990
    Assignee: General Motors Corporation
    Inventors: Eugene V. Gonze, David B. Brown
  • Patent number: 4422420
    Abstract: Method and apparatus are disclosed for controlling fuel flow from a fuel source to the fuel rail of a fuel injected, internal combustion engine. Two fuel flow paths are connected in parallel between the source and the fuel rail, an on-off solenoid valve being provided in each of the fuel flow paths. The two solenoid valves have dissimilar fuel flow capacities. A microcomputer generates a pulse width modulated signal for application to a selected one of the two solenoid valves so as to control fuel flow through the associated fuel flow path. The microcomputer decides to which solenoid valve to apply the pulse width modulated signal and the duty cycle of the pulse width modulated signal in accordance with the value of a master variable. The master variable is adjusted in accordance with the difference between vehicle or engine speed and an associated limit, thereby providing vehicle or engine speed governing. The system is also operable in cruise control and variable engine speed governing modes.
    Type: Grant
    Filed: September 24, 1981
    Date of Patent: December 27, 1983
    Assignee: TRW Inc.
    Inventors: Joseph C. Cromas, Charles M. McQuillan
  • Patent number: 4359984
    Abstract: A fuel control device for a diesel engine injection system having a motor-driven pump for supplying fuel to the injectors of said engine by driving a fuel pump with a DC motor, means for outputting a first motor-driven pump speed instruction signal according to a throttle position and an engine speed, a function generator for outputting a motor-driven pump armature current setting signal according to an engine speed along a torque curve preset for said engine, a motor speed detecting circuit for detecting an armature current of said motor-driven pump, to output an armature current signal, an integrator for integrating a difference between said armature current setting signal and an actual armature current signal, to output a second motor-driven pump speed instruction signal, and a minimum signal priority circuit for outputting a smaller one of said first and second instruction signals in priority, to control the armature current, whereby the speed of said motor-driven pump is regulated according to an engine
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: November 23, 1982
    Inventor: Kiyoharu Nakao