Patents by Inventor Robert A. Kagy

Robert A. Kagy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Control system and method for a valve actuator
    Patent number: 7228828
    Abstract: A method of controlling an engine having a valve actuation system is provided. The engine is started. A first parameter indicative of a first temperature of the engine is sensed. A second parameter indicative of a second temperature of the engine is sensed. The valve actuation system is disabled to prevent the implementation of a variation on conventional engine valve actuation timing in response to each of the first and second temperatures being below a predetermined value.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: June 12, 2007
    Assignee: Caterpillar Inc
    Inventors: Robert A. Kagy, Jason K. Bloms, Steven J. Funke
  • System and method for monitoring engine valve actuation
    Patent number: 7077082
    Abstract: An engine valve actuation system is provided. An intake valve is moveable between a first position where the intake valve prevents a flow of fluid relative to the intake valve and a second position where the intake valve allows a flow of fluid relative to the intake valve. A cam assembly is configured to move the intake valve between the first position and the second position. A fluid actuator having a chamber is adapted to selectively prevent the intake valve from moving to the first position. A fluid supply system is adapted to deliver fluid to the chamber of the fluid actuator. A pressure sensor is operatively engaged with the fluid supply system and is adapted to sense the pressure of the fluid within the fluid supply system.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: July 18, 2006
    Assignee: Caterpillar, Inc.
    Inventors: Jason Kenneth Bloms, Steven J. Funke, Robert A. Kagy, Evan E. Jacobson
  • Control system and method for a valve actuator
    Patent number: 6976459
    Abstract: A method of controlling an engine having a valve actuation system is provided. The engine is started. A first parameter indicative of a first temperature of the engine is sensed. A second parameter indicative of a second temperature of the engine is sensed. The valve actuation system is disabled to prevent the implementation of a variation on conventional engine valve actuation timing in response to each of the first and second temperatures being below a predetermined value.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: December 20, 2005
    Assignee: Caterpillar Inc
    Inventors: Robert A. Kagy, Jason K. Bloms, Steven J. Funke
  • System and method for monitoring engine valve actuation
    Publication number: 20030213445
    Abstract: An engine valve actuation system is provided. An intake valve is moveable between a first position where the intake valve prevents a flow of fluid relative to the intake valve and a second position where the intake valve allows a flow of fluid relative to the intake valve. A cam assembly is configured to move the intake valve between the first position and the second position. A fluid actuator having a chamber is adapted to selectively prevent the intake valve from moving to the first position. A fluid supply system is adapted to deliver fluid to the chamber of the fluid actuator. A pressure sensor is operatively engaged with the fluid supply system and is adapted to sense the pressure of the fluid within the fluid supply system.
    Type: Application
    Filed: December 4, 2002
    Publication date: November 20, 2003
    Inventors: Jason Kenneth Bloms, Steven J. Funke, Robert A. Kagy, Evan E. Jacobsen