CONTROL VALVE FOR VARIABLE CAPACITY TYPE COMPRESSOR

摘要

PURPOSE:To ensure sufficient cooling capacity through comparatively simple structure without damaging mounting ability and responsiveness of a control valve even when an ambient temperature is comparatively low as sufficient cooling capacity is ensured when an ambient temperature is comparatively high. CONSTITUTION:A correction chamber 24 is arranged below a delivery pressure chamber 23 and a balance rod 18 capable of making contact with a ball 17 is located between the delivery pressure chamber 23 and the correction chamber 24. Further, an auxiliary correction chamber 25 is arranged below the correction chamber 24 and a high pressure correction rod 19 is located between the correction chamber 24 and an auxiliary stop chamber 25. The high pressure correction rod 19 is energized downward through the force of a spring 26. When a delivery pressure Pd is increased to a value higher than a set pressure, a press force is exerted on the ball 17 through the balance rod 18. Thereby, inclination of the absolute value of a straight line in relation between an ambient temperature and a suction pressure is made bendable by means of a control valve 10.