Valve timing control device

Details Valve timing control device Valve timing control device

1997-12-12

1998-12-08

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 74568R, 464 2, F01L 1344

Patent

active

058456155

ABSTRACT:
A valve timing control device includes a rotational shaft for opening and closing a valve, a rotational transmitting member rotatably mounted on the rotational shaft, a vane connected to one of the rotational shaft and the rotational transmitting member, a chamber defined between the rotational shaft and the rotational transmitting member and divided into a first pressure chamber and a second pressure chamber by the vane being extended into the chamber, a fluid supply device for supplying fluid under pressure to at least a selected one of the first pressure chamber and the second pressure chamber, a locking mechanism for connecting the rotational shaft and the rotational transmitting member when the relative phase between the rotational shaft and the rotational transmitting member is in a predetermined phase and a damping mechanism for damping the locking operation of the locking means.

REFERENCES:
patent: 5450825 (1995-09-01), Geyer et al.
patent: 5520145 (1996-05-01), Nagai et al.
patent: 5666914 (1997-09-01), Ushida et al.
patent: 5724929 (1998-03-01), Mikame et al.
patent: 5738056 (1998-04-01), Mikame et al.

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