Variable valve timing device

Details Variable valve timing device Variable valve timing device

1998-01-30

1999-05-11

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 74568R, 464 2, 464160, F01L1/344;13/00

Patent

active

059016744

ABSTRACT:
A variable valve timing device includes a rotation shaft and a rotation transmitting member rotatably mounted thereon. The device operates between a locked condition and an unlocked condition, wherein a locking pin is in and out of a receiving bore formed in the rotation shaft, respectively. For transferring the locking condition to the unlocking condition, oil is supplied to a bottom of the receiving bore via an independent fluid passage.

REFERENCES:
patent: 4858572 (1989-08-01), Shirai et al.
patent: 5205249 (1993-04-01), Markley et al.
patent: 5207192 (1993-05-01), Smith
patent: 5450825 (1995-09-01), Geyer et al.
patent: 5520145 (1996-05-01), Nagai et al.

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