| 摘要 |
The invention relates to a device for rotating internal combustion engine valves (1) loaded by helical springs (5), comprising a baseplate (9) on which there is rotatably mounted, via a rolling-contact thrust bearing capable of accepting small radial forces, an abutment (7) which supports the spring and the rotary motion of which is blocked in one direction by a one-way clutch. To avoid malfunctions caused by eccentricities arising due to the radial play of the rolling-contact thrust bearing between the baseplate (9) and the abutment (7), the one-way clutch is designed as an axial one-way clutch and has at least one flat wedging track (13) for wedging elements (12). <IMAGE>
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