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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.:

US 8939113 B1

PDFFull Text
Date of Patent:
Jan. 27, 2015

Filed:

May. 01, 2012

Variable valve timing controller

Applicants:

Tsuyoshi Kanda, Okazaki, JP;

Masao Kurisu, Anjo, JP;

Inventors:

Tsuyoshi Kanda, Okazaki, JP;

Masao Kurisu, Anjo, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Lindsay Low

Assistant Examiner:

Charles Brauch

Int. Cl.
CPC ...
F01P 9/02 (2006.01); F02D 13/02 (2006.01); F02D 13/08 (2006.01); F01L 1/352 (2006.01); F01P 3/02 (2006.01); F01P 3/22 (2006.01); F01P 3/18 (2006.01);
U.S. Cl.
CPC ...
F02D 13/0238 (2013.01); F02D 13/08 (2013.01); F01L 1/352 (2013.01); F01P 3/02 (2013.01); F01P 2003/2278 (2013.01); F01P 3/18 (2013.01); F01P 3/22 (2013.01); F01P 3/2285 (2013.01); F02D 2013/0292 (2013.01); F01L 2201/00 (2013.01); F01L 2800/01 (2013.01); F01L 2800/03 (2013.01); F01L 2820/032 (2013.01); Y02T 10/18 (2013.01);
Abstract

An engine is provided with a variable valve timing device which transmits a rotational force generated by a motor via a motor drive circuit to a cam shaft so as to change a rotational phase of the cam shaft relative to a crank shaft. An ECU cools a motor and a motor drive circuit when the change of the rotational phase stops during the changing of the rotational phase of the cam shaft to a target value is detected. In addition, the lock state is eliminated by driving the motor by the motor drive circuit after cooling the motor device.

Find Patent Forward Citations

Kanda, Tsuyoshi. (2015). Variable valve timing controller (U.S. Patent No. 8939113). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8939113

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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