Patent ID: 7918656
Filing Date: 2011-04-05
Classification: F04B

Abstract:
1. A compressor assembly having a compressor housing, a crank chamber, a suction chamber and a suction throttle valve assembly, the suction throttle assembly comprising: a suction passage formed in the housing; a suction port provided at an inlet of the suction passage, through which refrigerant is drawn into the suction passage and then received in the suction chamber; a valve body movably arranged in the suction passage for adjusting opening of the suction passage, wherein the valve body is formed with a hole; an urging member for urging the valve body toward the suction port; a valve chamber provided in the suction passage, wherein the valve chamber and the suction port communicate with each other through the hole of the valve body, the urging member being disposed in the valve chamber; a first communication hole formed through a wall of the valve chamber, through which the valve chamber and the suction chamber are in constant communication with each other; and a second communication hole formed through a wall of the valve chamber, through which the valve chamber and the crank chamber are in constant communication with each other, wherein the second communication hole is made with an open area that is smaller than the sum of open areas of the first communication hole and the hole of the valve body.