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:
Sep. 17, 1985
Filed:
Sep. 19, 1984
Hideo Kobayashi, Kawagoe, JP;
Yohji Fukutomi, Sayama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An air intake side secondary air supply system for an internal combustion engine includes an air control valve for controlling the amount of the secondary air and first and second pressure supply passages for respectively supplying a first control pressure for opening the air control valve and a second control pressure for closing the air control valve. A surge tank is provided in the first pressure supply passage for reducing the pulsation of pressure level and further the first and second pressure supply passages are made so that only the first control pressure is supplied through the first pressure supply passage and only the second control pressure is supplied through the second pressure supply passage. Thus, the delay of the closure of the air control valve which might cause unstable engine operation when the engine is decelerating is alleviated.