Valve timing control device

Details Valve timing control device Valve timing control device

1997-07-11

1998-08-18

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 74568R, 464 2, F01L 1344

Patent

active

057945772

ABSTRACT:
A valve timing control device has a rotor fixed on a cam shaft of an engine and a housing member ratably mounted on the cam shaft. The housing member surrounds the rotor. A chamber defined between the housing member and the rotor has a pair of circumferentially opposed walls. A vane is mounted on the rotor and extends outwardly therefrom in the radial direction into the chamber so as to divide the chamber into a first pressure chamber and a second pressure chamber. A plate spring is inserted between the rotor and the vane and a fluid supplying device supplies 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: 5450825 (1995-09-01), Geyer et al.

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