The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2001
Filed:
May. 19, 1999
Applicant:
Inventor:
David C. Mack, Pontiac, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 3/704 ;
U.S. Cl.
CPC ...
F02M 3/704 ;
Abstract
A fuel injection system includes a fuel injector that defines an actuation fluid cavity, a fuel inlet and a nozzle outlet. A source of relatively high pressure actuation fluid is connected to the actuation fluid cavity via an actuation fluid supply passage. A fuel fluid supply passage extends between the fuel inlet and a source of relatively low pressure fuel fluid. A mechanically actuated valve is attached to the actuation fluid supply passage, and is moveable between an open position in which the actuation fluid supply passage is open and a closed position in which the actuation fluid supply passage is closed.