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:
Sep. 25, 1979
Filed:
Aug. 19, 1976
Applicant:
Inventors:
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ; F02B / ; F02P / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 1231 / ;
Abstract
An ignition system for an internal combustion engine is described, including an ignition timing control apparatus which is useful for cleaning the exhaust gas and saving fuel, which ignition timing control apparatus is controlled by first, second and third control signals in which the first control signal represents the rotating speed of a crank shaft, the second control signal represents the value of the negative pressure in an intake manifold and the third control signal indicates that the internal combustion engine is idle.