Title:
弁開閉時期制御装置
Document Type and Number:
Japanese Patent JP4000522
Kind Code:
B2
Abstract:
A variable valve timing control device which includes a driving side rotational member (2), a driven side rotational member (1), a rotational phase holding mechanism (R1) for holding a relative rotational phase between the driving side rotational member and the driven side rotational member at a locked phase, a rotational phase restriction mechanism (R2) for allowing and restricting the relative rotation, a groove (Rb) formed at one of the rotational members, a restriction body (Ra) provided at the rotational phase restriction mechanism for restricting the relative rotation, a plurality of said rotational phase restriction mechanisms for restricting the relative rotation in a predetermined direction at different relative rotational phases, a step portion (Rc) provided at the groove being engaged with the restriction body for restricting the relative rotation in the predetermined direction, and the rotational phase restriction mechanism including the step portion for restricting the relative rotation in the predetermined direction at the plural relative rotational phases.
Inventors:
Osamu Komazawa
Naoto Yumi
Naoto Yumi
Application Number:
JP2003049245A
Publication Date:
October 31, 2007
Filing Date:
February 26, 2003
Export Citation:
Assignee:
Aisin Seiki Co., Ltd.
International Classes:
F01L1/34; F01L1/344
Domestic Patent References:
| JP2002097912A | ||||
| JP2002122009A |
Attorney, Agent or Firm:
Shuichiro Kitamura
Mountain Saki Tetsuya
Tamio Ohori
Mountain Saki Tetsuya
Tamio Ohori