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. 02, 2003
Filed:
Oct. 25, 2002
Applicant:
Inventors:
Isamu Iizuka, Atsugi, JP;
Satoru Watanabe, Atsugi, JP;
Assignee:
Hitachi Unisia Automotive, Ltd., Atsugi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/34 ;
U.S. Cl.
CPC ...
F01L 1/34 ;
Abstract
An open-close characteristic of an intake valve is controlled so that a target intake air amount for an engine can be obtained, and also a retarded angle limitation of closing timing of an exhaust valve is set based on opening timing of the intake valve, to control an open-close characteristic of the exhaust valve so that the closing timing of the exhaust valve becomes a more advance angle side than the retarded angle limitation.
Iizuka, Isamu. (2003). Variable valve control apparatus for internal combustion engine and method thereof (U.S. Patent No. 6612274). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6612274
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile