Device for hydraulic rotational angle adjustment of a shaft rela

Details Device for hydraulic rotational angle adjustment of a shaft rela Device for hydraulic rotational angle adjustment of a shaft rela

1998-12-17

2000-07-11

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, F01L 1344

Patent

active

060857080

ABSTRACT:
A device for relative rotational angle changing of the camshaft of an internal combustion engine relative to its drive wheel has an inner part connected with ribs or vanes that is located rotationally movably in a compartmented wheel. This driven compartmented wheel has a plurality of compartments distributed around the circumference divided by ribs or vanes into two pressure chambers each, and with the change in rotational angle being produced by their pressurization. To minimize the influence of overlapping alternating torque influences from the valve drive of the internal combustion engine, damping structure is integrated into this device to damp the change in rotational position change hydraulically.

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