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. 02, 1979
Filed:
Jul. 11, 1977
Applicant:
Inventor:
Hideki Yukawa, Susono, JP;
Assignee:
Kokusan Denki Co., Ltd., Numazu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 3152 / ;
Abstract
An ignition system for an internal combustion engine wherein ignition timing is retarded when the engine speed exceeds a predetermined value. The ignition angle retardation is effected by an angle retarding circuit for by-passing at least part of an AC ignition signal. The angle retarding circuit is actuated responsive to an output of a phase-advanced signal generating circuit for generating an AC signal in advance in phase of the ignition signal. The utilization of the phase-advanced signal generating circuit enables the ignition angle to be varied over a wide angle.