Patents by Inventor Beata M. Oleksiewicz

Beata M. Oleksiewicz 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).

  • Electric-operated fuel injection having de-coupled supply and drain passages to and from an intensifier piston
    Patent number: 6029628
    Abstract: A fuel injector for an internal combustion engine. The injector body contains a variable volume control chamber to and from which control fluid is supplied and drained to operate an intensifier piston which repetitively injects fuel from an injection chamber within the body. An electric-operated supply valve selectively controls flow of control fluid through a supply passage to the control chamber, and an electric-operated drain valve selectively controls flow of control fluid through a drain passage from the control chamber. Each valve is selectively operable independent of the other, and flow through the supply passage is independent of flow through the drain passage, and vice versa.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: February 29, 2000
    Assignee: Navistar International Transportation Corp.
    Inventors: Radek A. Oleksiewicz, Beata M. Oleksiewicz