| 摘要 |
<p>PURPOSE:To enable to compress gas without utilizing suction and discharging valves by a method wherein a cylinder is driven reciprocally by an operating piece, engaged with a part of a guide groove provided on the peripheral surface of a piston and a recess provided on the cylinder, in accordance with the rotation of the piston. CONSTITUTION:The cylinder 9 is formed so that the end face of a cylinder chamber 8 is forming a slanted surface 8a slanted by the substantially same angle as the slanted surface 7a of the piston 7, and is bored with a discharging port 13 and a suction port 14. The semi-spherical recess 15 is provided on a part of the inner peripheral surface of the cylinder 9 while a ball 16, operating as the operating piece, is engaged with the recess 15 and a part of the guide groove 11 provided on the peripheral surface of the piston 7. According to this method, the ball 16 rolls along the guide groove 11 and is displaced in up-and-down direction to drive receprocally the cylinder 9 into up-and-down direction through the recess 15 when the piston 7 is rotated, therefore, compression and discharging of the gas may be effected without utilizing the suction and the discharging valves.</p> |
