| 摘要 |
<p>A rocking piston type compressor is provided with a piston rod (11), a lip ring (20), and a ring holding member (30). The lip ring (20) includes a center portion (21) fixed by the ring holding member (30), and a lip portion (22) upwardly extending around the center portion (21) along a periphery of the ring holding member (30). The ring holding member (30) includes a flange portion (33) covering at least a part of an upper end surface (23) of lip portion (22). A back pressure introducing portion (34, 35, 37) is provided in a part of the flange portion (33).</p> |
