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:
Apr. 26, 1977
Filed:
Feb. 10, 1975
Applicant:
Inventor:
Yasunori Mori, Hitachi, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
1231 / ; 3152 / ;
Abstract
An ignition apparatus for an internal combustion engine, wherein the energization time of the primary winding of the ignition coils is maintained constant regardless of the engine revolutions, is provided with reference time signal generator means within the apparatus. The reference time signal thus produced from the reference time signal generator means is compared with an actual energization time, and the time difference therebetween is negatively fed back to the energization time signal generator means, thereby controlling the energization time in such a way as to always approximate the reference time.