| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a compressor keeping good slide contact between an inner peripheral surface of a cylinder bore and an outer peripheral surface of a piston, while being provided with a residual pressure releasing passage. <P>SOLUTION: The compressor 1 comprises: communication holes 83 penetrating a part of a valve plate 9 at a position opposed to a regulating step part 59 of a cylinder block 2 so as to connect each cylinder bore 3 with a suction chamber 7; and a rotary valve 71 rotated in synchronization with rotation of a drive shaft 10 and rotatably slide-contact with a face on a suction chamber side of the valve plate 9 at a position covering the communication hole 83 of the valve plate 9. The residual pressure releasing passage 71c is formed to the rotary valve 71, so that the communication hole 83 communicating with the cylinder bore that have finished the discharge is sequentially connected with the communication hole 83 communicating with the other cylinder bore 3 lower in pressure than the cylinder bore 3, along with rotation of the rotary valve 71. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
