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. 03, 2001
Filed:
Mar. 16, 2000
Applicant:
Inventors:
Masayuki Saruwatari, Atsugi, JP;
Junichi Furuya, Atsugi, JP;
Assignee:
Unisia Jecs Corporation, Kanagawa-Ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 3/302 ;
U.S. Cl.
CPC ...
F02M 3/302 ;
Abstract
Purge control valves are mounted to purge pipings arranged in parallel for supplying purge gas from a canister to an engine. A flow rate of the purge control valve having a larger flow rate size is controlled in a step mode, and a flow rate equal to or smaller than a variation quantity in said step mode is controlled by the purge control valve having a smaller flow rate size.