| 摘要 |
<p>A means of varying both the opening and closing angle of internal combustion engine cam-operated valves (13) by means of a mechanism which responds to the torque applied to the camshaft (5) by the valve springs (14) in such a way that the opening angle of the valves (13) is retarded and the closing angle is advanced and in which a means (11) of inhibiting this operation can be incorporated.</p> |
