| 摘要 |
<p>A compressor piston 26 has protrusions 36 which extend upwardly into discharge ports 30, 32 to minimize clearance at the end of the compression stroke. The protrusions 36 fit into circumferentially isolated discharge ports 30, 32, and each of the ports are associated with reed valves 34. Preferably a cutout portion 40 is formed into the piston head to allow clearance for movement of a suction valve 39. The suction valve 39 is positioned on an inner face of a valve plate 28 and the discharge reed valves 34 are positioned on an outer face. The protrusions 36 are preferably frustro-conical. <IMAGE></p> |
