| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a control valve for a variable displacement swash plate type compressor capable of performing feedback control while stabilizing the discharge capacity of the compressor at the time of low discharge capacity to high discharge capacity, and capable of controlling decline in the efficiency of the compressor at the time of large discharge capacity. <P>SOLUTION: This control valve for a variable displacement swash plate type compressor used in an air-conditioning device for cooling/heating is equipped with a throttle valve placed on a refrigerant circuit, a constant differential pressure regulating valve that is opened when pressure difference between a primary-side pressure and a secondary-side pressure of the throttle valve reaches a predetermined value and that guide compressor-discharging gas to a crank chamber, a external information detecting means for detecting cooling load, vehicle traveling state and the like, and a control means for determining the opening of the throttle valve based on the external information. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
