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. 18, 2001
Filed:
Apr. 20, 2000
Shinichi Wakutani, Hiroshima, JP;
Yuji Matsuo, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima-Ken, JP;
Abstract
An exhaust gas recirculation control system for bringing an actual amount of air that is detected by an air flow sensor to a target value by feedback controlling a valve lift of an EGR valve throttles down a throttle valve immediately before an exhaust gas inlet port of an intake passage when a large amount of exhaust gas is intended to be recirculated. When the largest actual amount of air is reduced due to closing the throttle valve, the target amount of air is changed smaller so as to ensure the actual amount of air to reach the target value through the feedback control.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile