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:
Jul. 07, 1987
Filed:
May. 21, 1986
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Air intake side secondary air supply system for an internal combustion engine includes first and second secondary air supply passages leading to an intake manifold in which an open/close valve and an air control valve are respectively provided for a proportional control and an integral control of secondary air. In order to improve a driveability of the engine during a transition period from a feedback control mode to an open loop control mode, pressure control device for controlling a supply of first and second control pressures respectively for opening and closing the air control valve is constructed to rapidly supply the second control pressure when a state of engine operation in which the feedback control mode is to be stopped is detected.