With Fail-safe, Backup, Or Malfunction Detecting Means Patents (Class 123/339.15)
  • Electronic throttle return mechanism with default and gear backlash control
    Patent number: 6267352
    Abstract: An electronic throttle control system having a housing 22 with a motor 40, throttle valve 60, gear mechanism 100, and failsafe mechanism 130. A main spring member 150 positioned between the housing 22 and a gear mechanism 104, which in turn is attached to the throttle valve shaft 62, biases the throttle plate 60 towards the closed position. A spring-biased gear backlash sector gear mechanism 130 biases the throttle plate 60 from its closed position to a default or “limp-home” position.
    Type: Grant
    Filed: November 11, 1999
    Date of Patent: July 31, 2001
    Assignee: Ford Global Technologies, Inc.
    Inventors: Mark Warner Semeyn, Jr., Edward Albert Bos
  • Electronic throttle control system with two-spring failsafe mechanism
    Patent number: 6173939
    Abstract: An electronic throttle control system having a housing 22 with a motor 40, throttle valve 60, gear mechanism 100, and failsafe mechanism 130. A spring member 150 attached between the housing 22 and a gear member 104 attached to the throttle valve shaft 62 biases the throttle plate 60 towards the closed position. A spring-biased plunger member 134 biases the throttle plate 60 from its closed position to a default or “limp-home” position.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: January 16, 2001
    Assignee: Ford Global Technologies, Inc.
    Inventors: James J. Dottavio, Mark Warner Semeyn, Edward Albert Bos, Mark Alan Saunders
  • Fail-safe system for engine
    Patent number: 6173697
    Abstract: A fail-safe system for an internal combustion engine mounted on an automotive vehicle. The fail-safe system comprises a device for causing the engine to generate an engine power output. A detector is provided to detect an operational condition of the causing device so as to generate a detection signal representative of the operational condition.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: January 16, 2001
    Assignee: Nissan Motor Co. Ltd.
    Inventor: Kenichi Goto
  • Throttle valve system
    Patent number: 6170461
    Abstract: An electronic throttle valve for an engine includes a throttle plate with upper and lower reliefs that allows for tight closed in bore sealing and allows the throttle plate to rotate past the maximum airflow position. A unidirectional spring force is used to reduce feedback control problems.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: January 9, 2001
    Assignee: Visteon Global Technologies, Inc.
    Inventor: Ross Dykstra Pursifull