| 摘要 |
The invention concerns a rotary piston adjuster for adjusting the angular position of the camshaft of an internal combustion engine, said adjuster comprising an outer rotor having at least one hydraulic chamber, and an inner rotor comprising at least one pivoting vane that can pivot hydraulically in the hydraulic chamber between a retard stop position and an advance stop position. A locking device suitable for detachably connecting the outer and inner rotors to each other and at least one compression spring acting in opposition to the frictional torque of the camshaft are arranged between the two rotors. A liberal design of the compression spring and a low-wear operation with this spring are enabled by the fact that the compression spring (27, 27') is arranged in an attachment (4) that is connected to the rotary piston adjuster, and the components of the attachment have a wear-resistant configuration and support the compression spring (27, 27') at least pointwise over its entire length.
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