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.

Date of Patent:
Nov. 14, 1978

Filed:

Jun. 10, 1976
Applicant:
Inventors:

Kizuku Otsubo, Kokubunji, JP;

Akira Murasaki, Musashino, JP;

Takehiko Kita, Tachikawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
1231 / ;
Abstract

Passage means is provided to feed atmospheric air into the vacuum chamber of a vacuum actuator of a breaker plate and a control valve is provided to control the amount of atmospheric air fed into the vacuum chamber to make the vacuum in the vacuum chamber equal to the intake manifold vacuum during engine operation below a predetermined speed and above a predetermined load and to reduce the vacuum in the vacuum chamber to a predetermined level lower than the intake manifold vacuum during engine operation above the predetermined speed and below the predetermined load so that the ignition timing of the engine is adequately retarded during running of the engine at low load and at low speed and medium load and the engine ignition timing is not retarded or is slightly retarded during running of the engine at high load and at high speed and medium load.


Find Patent Forward Citations

Otsubo, Kizuku. (1978). Ignition timing control system (U.S. Patent No. 4125096). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4125096

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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