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:
Oct. 30, 1990
Filed:
Sep. 01, 1989
Setsuhiro Shimomura, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for adjusting idling RPM of engine having a pair of bypass passages, one of which is provided with a control valve and the other is provided with an air intake adjusting screw. The control valve is controlled by an adjusting signal (St+Sc) which is derived from an adjusting signal generator provided in a feedback system for decreasing the deviation of idling RPM of engine from a predetermined target RPM value after detecting it and the air intake adjusting screw is so adjusted as to make the adjusting signal to conform to the predetermined value (St) by decreasing the RPM correcting signal (Sc) independently of the said control value. With this arrangement there are no need of particular ways or arrangements for adjusting the idling RPM of the engine.