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:
Jun. 20, 1995
Filed:
Apr. 19, 1994
Applicant:
Inventor:
Norman H Bracken, Anderson, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123643 ;
Abstract
A distributorless ignition system for an internal combustion engine which discharges only one spark plug at a time. A high-level reversible voltage potential in selectively induced in the secondary winding of an ignition coil. Opposing diodes connected to the secondary winding permit application of the induced voltage across only one of two spark plug gaps, the central electrode of the spark plug being negatively charged with respect to ground to effectuate discharge with reduced power requirements and electrode erosion.