Camshaft phaser bias spring mechanism

Details Camshaft phaser bias spring mechanism Camshaft phaser bias spring mechanism

2006-06-20

2006-06-20

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090310

Reexamination Certificate

active

07063058

ABSTRACT:
In a prior art camshaft phaser having a biasing spring, the stator spring tang is anchored to a first binder screw passing through a stator lobe adjacent the locking pin-containing vane of the rotor, and the rotor spring tang is anchored to a first target wheel protrusion opposite such a vane. In an improved installation method in accordance with the invention, during assembly of an improved phaser the biasing spring is rotated about 180° from the prior art position such that the stator spring tang is anchored to a first fixed stop generally opposite the pin-containing vane, and the rotor spring tang is anchored to a second fixed stop generally adjacent such a vane.

REFERENCES:
patent: 6439184 (2002-08-01), Takenaka et al.

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