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. 17, 1991
Filed:
Aug. 02, 1990
Applicant:
Inventors:
Hiroshi Okuda, Himeji, JP;
Kyoichi Kamoshita, Yoshikawa, JP;
Assignees:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Tohatsu Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02P / ; F02P / ;
U.S. Cl.
CPC ...
123418 ; 123424 ; 123602 ;
Abstract
An ignition apparatus which determines ignition timing corresponding to the running state of an internal combustion engine. Ignition timing is advanced for a period when a choke switch 21 used for improving startability of the engine at a low temperature is closed, and for a predetermined period after the choke switch is opened as determined by the time constant of an RC circuit. When the predetermined period passes after the choke switch is opened, the ignition timing is delayed to a characteristic suitable for the running of the engine after warm up.