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:
Sep. 05, 2006
Filed:
Jun. 21, 2005
Yasuyoshi Suzuki, Chiryu, JP;
Akihiko Kameshima, Hekinan, JP;
Hideo Inaba, Okazaki, JP;
Jouji Yamaguchi, Anjo, JP;
Yasuyoshi Suzuki, Chiryu, JP;
Akihiko Kameshima, Hekinan, JP;
Hideo Inaba, Okazaki, JP;
Jouji Yamaguchi, Anjo, JP;
Denso Corporation, Kariya, JP;
Abstract
An actuator for a valve lift control device linearly moves a control shaft to change a valve lift in accordance with an axial position of the control shaft. A first and a second rotation cam integrally rotate around a common rotation axis by transmission of torque, so that a direct acting follower, which includes a first and a contact members, linearly moves with a control shaft. The first and a second rotation cams are respectively in contact with the first and the second contact members via a first and a second contact points. The first contact point is located on the opposite side of the second contact point with respect to the rotation axis. A sum of a first rotation cam lift of the first rotation cam and a second rotation cam lift of the second rotation cam is substantially constant in a predetermined rotation angular range of the first rotation cam and the second rotation cam.