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:
Jan. 30, 2007
Filed:
Aug. 18, 2003
Applicant:
Keiji Wakahara, Inazawa, JP;
Inventor:
Keiji Wakahara, Inazawa, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A coolant temperature of coolant in a circulation line system is measured through a coolant temperature sensor and is controlled by controlling a flow rate control valve. The flow rate control valve is diagnosed to determine whether abnormality of the flow rate control valve exists based on behavior of the measured coolant temperature, which is measured through the coolant temperature sensor during a warm-up period of an internal combustion engine.
Wakahara, Keiji. (2007). Abnormality diagnosis apparatus and engine cooling system having the same (U.S. Patent No. 7168399). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7168399
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile