| 摘要 |
A piston engine, comprising a number of cylinders (4) with pistons (5) slidable therein with driving rods (6), in which the longitudinal axis of each piston (5) is situated at a distance of and parallel to a shaft (3) to be driven, each driving rod (6) being movable substantially parallel to said shaft (3), and engaging, with its free extremity (10), a disc (8) connected with said shaft, said disc having surfaces (9) directed at an angle in respect of said shaft, said surfaces causing the reciprocation of each driving rod (6) when rotating said shaft (3). A lateral surface of the disc (8) is provided with a corrugated surface portion (9) with which the extremity of each driving rod (6) is in engagment, the corrugated surface portion (9) being constructed in such a manner that, during each piston stroke, the stroke length and/or the stroke velocity is adapted to the operation to be performed during the stroke in question. |
