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:
May. 16, 1989

Filed:

Jun. 26, 1987
Applicant:
Inventors:

Hitoshi Yamamoto, Saitama, JP;

Masayuki Toriyama, Saitama, JP;

Kazumi Shibata, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123 / ; 123323 ; 60314 ;
Abstract

An apparatus for controlling the exhaust timing of a two-cycle engine. A control valve is provided for adjusting the position of the top of the control port in the two-cycle engine as a function of the engine speed. A central processing unit receives a signal from an engine speed detector indicating the engine's operating speed. Based upon a control map, the central processing unit initiates action to adjust the position of the control valve.


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