| 摘要 |
PURPOSE:To restrain vibration caused by reciprocating motion of a piston by driving said piston by the turning force produced because of the differential angle which is made between the lines connecting both the center of a circular hole and the rotary shaft center of the slide plate pressed on the internal peripheral face thereof to the center of a planetary wheel. CONSTITUTION:A fixed shaft 1 combined with a bearing 6, a turning cylinder 2, a piston 5, two planetary wheels 4 and the internal peripheral face 7 of the circular hole drilled in a plate provides coincident suction and exhaust strokes. In the relation between the internal peripheral face 7 and the planetary wheels 4, 0-1-2-3-4-5-0 are the moving centers of the planetary wheel 4, the left side of the internal peripheral face 7 with respect to the longitudinal center line thereof shows a circle having its center A and positioned on the suction side, and the five one- dotted lines 1 to 5 drawn from the center B show the direction in which the piston 5 is extruded. The piston 5 makes a half turn from the starting point 0 illustrated on the lower side of the drawing in company with the movement of the planetary wheel 4 to be extruded double as long as the distance between A and B, whereby interchanging the suction and the exhaust strokes with each other. The turning cylinder 2 has the symmetrical form on both sides with respect to the center line thereof, so that vibration due to the turning may be attenuated. |
