Valve timing control device

Details Valve timing control device Valve timing control device

1998-06-25

1999-10-19

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, F01L 1344

Patent

active

059671041

ABSTRACT:
A valve timing control device for controlling the opening/closing timing of the intake valve or exhaust valve incorporates a valve opening/closing rotary shaft, a rotor provided on the rotary shaft, a timing pulley for receiving rotational power from a crank pulley through a timing belt, a rotation transmitting member provided within the timing pulley and mounted around the rotary shaft to rotate within a predetermined range, a plurality of vanes provided on the rotor or the rotation transmitting member, a fluid chamber formed between the rotor and the rotation transmitting member and separated into advancing chambers and delaying chambers by the vanes, a first fluid passage communicating with the advancing chambers, a second fluid passage communicating with the delaying chambers, and a cooling mechanism for cooling the rotation transmitting member and/or the timing pulley.

REFERENCES:
patent: 5666914 (1997-09-01), Ushida et al.

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