| 摘要 |
<P>PROBLEM TO BE SOLVED: To shorten the time required until increasing discharge capacity of a variable capacity compressor just after activation of the compressor by enhancing a pressure sensitive control valve. <P>SOLUTION: A crank chamber communication port 17 communicating a crank chamber side port 13 with a bellows accommodation chamber 2A is formed outside a guide hole 12 of a body case 1. A relief valve 31a is formed in a lower cover 31 of a bottom part of a pressure sensitive bellows 3 within the bellows accommodation chamber 2A. When performing capacity control operation of a compressor, the compressor is brought into a state where the relief valve 31a is inserted into a small diameter part 17a of the crank chamber communication port 17. When suction pressure Ps is high, the pressure sensitive bellows 3 is contracted and thereby the relief valve 31a is displaced to a large diameter part 17b of the crank chamber communication port 17 and the crank chamber communication port 17 is opened, and crank chamber pressure is relieved through the crank chamber communication port 17 to the bellows accommodation chamber 2A and a suction pressure side port 21. <P>COPYRIGHT: (C)2013,JPO&INPIT |
