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.

Date of Patent:
Jun. 20, 2006

Filed:

May. 25, 2004
Applicants:

Hideo Nakai, Kusatsu, JP;

Katsuhiko Miyamoto, Kyoto, JP;

Yoshiyuki Hoshiba, Kyoto, JP;

Katsuyuki Maeda, Otsu, JP;

Seiji Shiota, Kyoto, JP;

Inventors:

Hideo Nakai, Kusatsu, JP;

Katsuhiko Miyamoto, Kyoto, JP;

Yoshiyuki Hoshiba, Kyoto, JP;

Katsuyuki Maeda, Otsu, JP;

Seiji Shiota, Kyoto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a valve timing control apparatus for an engine, which comprises a variable valve mechanism capable of varying at least one of an opening timing of intake valves and a closing timing of exhaust valves in an engine, an elapsed time detecting device that detects a time period elapsed after cold-starting of the engine, and a timing control device that controls the variable valve mechanism. The timing control device provides advance angle control such that the opening timing of the intake valves and/or the closing timing of the exhaust valves is advanced to be earlier than an exhaust top dead center until the elapsed time period detected by the elapsed time detecting device has reached a predetermined time period.


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