Valve timing control device

Details Valve timing control device Valve timing control device

1996-12-02

1999-08-03

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 123 9034, F01L 1344

Patent

active

059311266

ABSTRACT:
A valve timing control device includes a rotor fixed on a cam shaft rotatably supported on a cylinder head of an engine so as to be accommodated in the cylinder head, a housing member rotatably mounted on the cam shaft so as to surround the rotor, plural chambers defined between the housing member and the rotor each of which having a pair of circumferentially opposed walls, plural vanes mounted on the rotor and extended outwardly therefrom in the radial direction into the chambers so as to divide each of chamber into a first pressure chamber and a second pressure chamber and a fluid supplying device for supplying fluid under pressure to at least a selected one of the first pressure chamber and the second pressure chamber.

REFERENCES:
patent: 4858572 (1989-08-01), Shirai et al.
patent: 4991549 (1991-02-01), Sugiura
patent: 5181485 (1993-01-01), Hirose
patent: 5205249 (1993-04-01), Markley et al.
patent: 5275138 (1994-01-01), Hotta et al.
patent: 5450825 (1995-09-01), Geyer et al.

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