Variable phase drive mechanism

Details Variable phase drive mechanism Variable phase drive mechanism

2007-09-18

2007-09-18

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090120, C123S090150, C123S090310, C464S001000, C464S002000, C464S160000, C092S00500L, C092S122000

Reexamination Certificate

active

11104721

ABSTRACT:
A twin vane-type phaser is described which is provided with a locking mechanism for locking the drive member to the driven members when the pressure in the working chambers is a below is predetermined value. The locking mechanism comprises two coaxial locking pins114, 118mounted in a common bore110in the centrally located member32.The locking pins are resiliently urged apart by a spring120into bores in the two outer members38, 40and are retracted by pistons112, 116when the hydraulic pressure in the working chambers attains the predetermined value.

REFERENCES:
patent: 6105543 (2000-08-01), Ogawa
patent: 6443112 (2002-09-01), Kinugawa
patent: 6520132 (2003-02-01), Todo
patent: 6725817 (2004-04-01), Methley et al.

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