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:
Feb. 17, 2015
Filed:
Aug. 29, 2011
Toshiyuki Yano, Gotemba, JP;
Toshiyuki Maehara, Susono, JP;
Hidetoshi Hirose, Susono, JP;
Shuichi Ezaki, Susono, JP;
Toshiyuki Yano, Gotemba, JP;
Toshiyuki Maehara, Susono, JP;
Hidetoshi Hirose, Susono, JP;
Shuichi Ezaki, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A variable valve operating apparatus includes a drive camshaft that is rotationally driven by the rotational force of the crankshaft, and a driven cam lobe that is rotatably supported by the drive camshaft. The variable valve operating apparatus further includes a guide member that has a raceway surface formed so as to surround the drive camshaft. The variable valve operating apparatus further includes a link mechanism that is connected to each of the drive camshaft and the driven cam lobe and has a control roller which is in contact with the raceway surface. The variable valve operating apparatus further includes a link plate and holding rollers that maintain contact between the raceway surface and the control roller while the drive camshaft makes one rotation. The variable valve operating apparatus further includes an actuator that drives the guide member.