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:
Jan. 23, 2001
Filed:
Sep. 11, 1998
Applicant:
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 1/700 ;
U.S. Cl.
CPC ...
F02B 1/700 ;
Abstract
In a direct fuel injection engine, an ignition coil generates a high voltage applied to a spark plug at a desired ignition time and a similar ignition voltage is then continued to be repeatedly generated at a fixed frequency so that the spark plug generates multiple sparks in each ignition cycle. The number of sparks included in the multiple is reduced as an engine speed rises. The multiple spark generating operation is disabled when the engine is in a high speed and/or high load region of operation.