| 摘要 |
An apparatus for use in an internal combustion engine having a set of timed valves. The apparatus comprising an element (14) rotatable within a hole in the engine (18), with a cam follower (17). The cam follower (17) having a curved surface engageable with the camshaft at an engagement surface. The rotation of the rotatable element within the hole shifts the engagement surface to thereby alter the valve timing.
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