| 摘要 |
In a pneumatic vibrator compressed air flows through an inlet 1a into a cylindrical housing 1 having therein a rotary piston 4. Piston 4 thereby rotates while rolling on a central member 3 without touching the inner cylindrical surface of housing 1. Used air escapes through apertures 2a in at least one of two side plates of the housing 1. <IMAGE> |
