| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device for variable displacement compressor which makes excellent start-up property compatible with stabilization of discharge capacity control at a high quality level in an air conditioning device. <P>SOLUTION: A crank chamber side passage 69 from a crank chamber 17, a suction chamber side passage 68 from a suction chamber 25, and a discharge chamber side passage 67 from a discharge chamber 26 are connected to an auxiliary valve 62. A capacity control valve 33 for adjusting an opening of the passage 67 is provided on the discharge chamber side passage 67. The auxiliary valve 62 is constituted by a spool valve 64 slidably housed in a valve chamber 63. The inside of the valve chamber 63 is partitioned into a first pressure chamber 65 and a second pressure chamber 66 by the spool valve 64. The discharge chamber side passage 67 is connected to the first pressure chamber 65, and the suction chamber side passage 68 is connected to the second pressure chamber 66. The crank chamber side passage 69 is opened to an inner peripheral surface 63b of the valve chamber 63. The spool valve 64 moves over an opening 69a, and thereby the connection destination of the crank chamber side passage 69 is changed between the first pressure chamber 65 and the second pressure chamber 66. <P>COPYRIGHT: (C)2003,JPO |
