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:
Aug. 16, 2005
Filed:
Sep. 22, 2004
Applicants:
Kazuki Ichimura, Kariya, JP;
Yasuo Hirata, Chita-gun, JP;
Inventors:
Kazuki Ichimura, Kariya, JP;
Yasuo Hirata, Chita-gun, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L001/34 ;
U.S. Cl.
CPC ...
Abstract
When a target advance angle VTTof an intake valve is a threshold Kor less and when a target retard angle VTTof an exhaust valve is a threshold Kor less, an intake-side variable valve timing device and an exhaust-side variable valve timing device are turned into a base mode. When a target advance angle VTTof an intake valve exceed the threshold Kor when the target retard angle VTTof an exhaust valve exceeds the threshold K, both of the variable valve timing devices are turned into a feedback mode at the same time.