Patents by Inventor Gerald D. Breen

Gerald D. Breen 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).

  • Oil system for an engine that includes an auxiliary priming pump
    Patent number: 5682851
    Abstract: An oil system for an engine includes an lubricating oil circulation system having a pan reservoir connected to an inlet of an engine oil gallery by a circulation conduit. A circulation pump is positioned in the circulation conduit. A recirculation conduit connects an outlet from the engine oil gallery to the pan reservoir to complete the lubricating oil circuit. A hydraulically actuated subsystem has a supply conduit connecting the engine lubricating oil circulation system to at least one hydraulically actuated device, such as a hydraulically actuated fuel injector. A high pressure pump is positioned in the supply conduit. A drain conduit connects the at least one hydraulically actuated device to the pan reservoir. A first external port and valve are attached to and open into the supply conduit of the subsystem. An auxiliary pump is connected to the external port.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: November 4, 1997
    Assignee: Caterpillar Inc.
    Inventors: Gerald D. Breen, Richard H. Holtman, Alan R. Stockner