The construction of cam phaser
Cam phaser is generally divided into four types: chain drive vane rotors, chain drive star rotors, belt drive vane rotors, and belt drive star rotors. Take the chain drive star rotor as an example.
The sprocket, the stator and the cover plate together form a hydraulic cavity and are divided into two oil chambers by a star-shaped rotor with an oil seal. The oil chambers are respectively connected to the cam shaft and the OCV inlet and outlet oil holes.
Wherein the rotor and the camshaft are fixed together by a central bolt, and the rotation of the rotor and the camshaft is always synchronized; and the stator and the sprocket or the pulley are fixed together by the stator bolt, and the rotation of the sprocket or the pulley and the stator and the crankshaft is Synchronous. When the rotor is relatively rotated relative to the stator, it means that the camshaft has a timing advance or lag with respect to the crankshaft.
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