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. 15, 1990
Filed:
Sep. 11, 1989
Applicant:
Inventors:
Shi-wai S Cheng, Troy, MI (US);
Wayne C Nichols, Corunna, MI (US);
Wayne R Moore, Highland, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123259 ; 123266 ; 123286 ; 1231 / ; 313143 ;
Abstract
Torch jet ignition is used to assist conventional spark ignition. A small (0.5-1 cc) chamber in a spark plug has an orifice (0.1-0.2 cm diameter) adjacent the spark gap to emit a torch jet into the main combustion chamber to enhance the combustion. The combustion is initiated by the conventional spark in the combustion chamber and the combustion ignites the torch jet. In another embodiment, two spark gaps in series are used, one in the main combustion chamber and one in the torch chamber.