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:
Mar. 30, 2004
Filed:
Mar. 26, 2002
Paul Gottemoller, Palos Park, IL (US);
Richard Wayne Tupek, Naperville, IL (US);
Michael Barry Goetzke, Orland Park, IL (US);
Jerry Van Polen, Oak Park, IL (US);
David Corba, Des Plaines, IL (US);
Wojciech T. Pierga, Glenview, IL (US);
Donald E. Meyer, Westchester, IL (US);
Richard J. Lill, Naperville, IL (US);
Hassan Z. Hannon, Chicago, IL (US);
General Motors Corporation, Detroit, MI (US);
Abstract
Ignition delay in a diesel engine is reduced or eliminated by a fuel injector or igniter nozzle which includes energy supplying fuel conditioning means at the point of fuel injection into a cylinder. A preferred embodiment includes an electrically-conductive injection valve reciprocable in a conductive nozzle body and seatable on a valve seat to stop fuel flow through nozzle orifices. The injection valve is electrically insulated from the body except at its contact with the valve seat and is connected to an electrical charge, at least during opening of the valve. An electrical spark discharge is thus generated between the injection valve and the valve seat upon opening of the valve. Initially injected fuel passes through the arc and is conditioned by the spark energy to ignite almost immediately by compression ignition upon entering the engine cylinder and thus essentially eliminate diesel ignition delay.