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:
Jul. 08, 2003
Filed:
Jun. 06, 2001
Applicant:
Inventor:
Roy J. Fewell, Jr., Aiken, SC (US);
Assignee:
R.E. Phelon Company, Inc., Aiken, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 9/00 ; F02P 3/02 ;
U.S. Cl.
CPC ...
F02P 9/00 ; F02P 3/02 ;
Abstract
A capacitive discharge ignition apparatus provides spark advance with engine speed. The ignition apparatus includes triggering circuitry connected to the primary coil of the high voltage transformer. The triggering circuitry produces a triggering signal based on voltage induced in the primary coil by revolution of a permanent magnet. The triggering circuitry is adapted to provide the triggering signal at low RPMs on the trailing edge of a predetermined half cycle. At higher RPMs, the triggering signal shifts to the leading edge of the half-cycle so as to advance the spark.