| 摘要 |
PURPOSE:To have effective prevention of vibrations in a device by arranging a pair of free pistons facing each other in an internal combustion cylinder, allowing them to make a synchronous motion at the same speed in opposite directions, and thus canceling the inertia forces acting on the pistons by each other. CONSTITUTION:A pair of liquid pressure pistons 6, 7 are arranged concentratively in a liquid pressure cylinder 5 installed in parallel with an internal combustion cylinder 1, so as to transmit the reciprocative motion of a pair of free pistons 2, 3 arranged facing each other in the internal combustion cylinder 1 to their mating liquid pressure pistons 6, 7 through swing arms 8, 9. According to this configuration the device can be simplified compared with a one in which liquid pressure cylinders 5 are arranged on both sides of internal combusion cylinder 1. Because, the free pistons 2, 3 make synchronous motion at the same speed in opposite directions, the inertia forces acting on the free pistons 2, 3 cancel each other to provide effective prevention of vibrations in the device. |
