Patents by Inventor Darrell C. Drouillard

Darrell C. Drouillard 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).

  • Patent number: 5740778
    Abstract: An intake system for a multicylinder internal combustion engine includes a manifold having inlet runners for conducting charge air into the cylinders of an engine, and at least one secondary throttle valve situated within at least one of the inlet runners. An electrically driven motor positions the secondary throttle valve, with the motor being operated by a controller, which senses engine operating parameters including the temperature of an electrically driven motor which powers the secondary throttle valve.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: April 21, 1998
    Assignee: Ford Global Technologies, Inc.
    Inventors: William C. Corcoran, Darrell C. Drouillard, Edwin J. Matysiewicz, Randall Berry, Vasant B. Patel, Stanley F. Zenas
  • Patent number: 5669337
    Abstract: A temperature sensing system for an internal combustion engine includes a heat transfer element communicating with both the engine coolant passage in the cylinder head and the cylinder head itself. A temperature sensor is used to sense the temperature of the heat transfer element. During normal engine operating conditions, the system records engine coolant temperature. During a loss of coolant, the system records cylinder head temperature.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: September 23, 1997
    Assignee: Ford Global Technologies, Inc.
    Inventor: Darrell C. Drouillard