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:
Apr. 07, 2009
Filed:
Dec. 15, 2004
Applicants:
Shuichi Ezaki, Susono, JP;
Toshiaki Asada, Mishima, JP;
Kimitoshi Tsuji, Susono, JP;
Yasushi Kusaka, Susono, JP;
Inventors:
Shuichi Ezaki, Susono, JP;
Toshiaki Asada, Mishima, JP;
Kimitoshi Tsuji, Susono, JP;
Yasushi Kusaka, Susono, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a valve gear () with a motor (), a cam mechanism () which converts a rotational motion of the motor () into a linear motion of an intake valve () by a cam (), and a motor control apparatus () which controls the motor () such that an acceleration characteristic during a lift of the intake valve () changes in correspondence to a rotation number of an internal combustion engine.