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:
Jan. 22, 1985

Filed:

Dec. 23, 1981
Applicant:
Inventors:

Tatsuhisa Fukushima, Tama, JP;

Yoshiaki Kasai, Kiyose, JP;

Mitsuo Nakamura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D / ; F02M / ; F02D / ;
U.S. Cl.
CPC ...
36443107 ; 123339 ; 123352 ;
Abstract

An actuator control system for an internal combustion engine idling speed governor mounted on a vehicle includes an actuator for actuating a throttle valve, an ignition switch for producing an ignition turning off signal, an engine speed signal generating circuit, an engine speed increasing signal generating circuit, an engine speed decreasing signal generating circuit, an actuator control circuit for operating the actuator in opposite direction in accordance with engine speed increasing and decreasing signals. A time lag signal generating circuit is provided to be responsive to said ignition turning off signal to generate a signal after a predetermined time. A logic gate is provided to be responsive to the ignition turning off signal for operating the actuator control circuit so as to close the throttle valve from the idling open position to the closed position. Another logic gate is provided to be responsive to the time lag signal for operating the actuator control circuit so as to open the throttle valve from the closed position to the idling open position.


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Fukushima, Tatsuhisa. (1985). Actuator control system for an engine idling speed governor (U.S. Patent No. 4495579). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4495579

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