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:
Feb. 14, 1984
Filed:
Jul. 31, 1981
Applicant:
Inventor:
Hideo Miyagi, Okazaki, JP;
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123339 ; 123350 ; 123585 ;
Abstract
The cross-sectional area of a bypass passage around a throttle valve in an intake passage of an internal combustion engine is additionally increased by a predetermined value only when the throttle valve changes from an open position to the fully closed position during a heavy load condition or during a transitional condition from the heavy load condition to a light load condition. Therefore, the flow rate of the intake air at deceleration is not additionally increased during a light load condition, since that would cause the operation of the engine to be stable during deceleration.