CONTROL VALVE AND DISPLACEMENT VARIABLE COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To reduce the cost and the size of a displacement-variable compressor having a control valve which can control the openings of a first fluid channel and a second fluid channel in a fluid circuit. SOLUTION: This displacement-variable compressor can change the discharge capacity by means of a control valve 34 which controls the openings of a supply air channel 33 and of a second extraction channel 32. The control valve 34 is comprised of: a first plunger 62 and a second plunger 44 which are arranged movable independently of each other; a coil 65 for activating electromagnetic suction force between the first plunger 62 and the second plunger 44 upon electricity feeding; a first valve portion 43c (an operating rod 43) operatively connected with the first plunger 62 for controlling the opening of the supply air channel 33; and a second valve portion 44b operatively connected with the second plunger 44 for controlling the opening of the second extraction channel 32.