| 摘要 |
PROBLEM TO BE SOLVED: To suppress noise due to minute vibrations of a plunger, in a control valve for a variable displacement compressor which is controlled to be energized in a PWM system.SOLUTION: A control valve 1 includes: a body 5 which has a port 14 communicating with a discharge chamber, a port 12 communicating to a crank chamber, and a valve hold 18 provided in a passage connecting the port 14 and the port 12; a valve body 33 which is disposed so as to be separable from the valve hole 18 and opens/closes a valve portion; a solenoid 3 which is controlled to be energized in a PWM system, and generates solenoid force for driving the valve body 33 in a valve-closing direction; an actuation rod 58 which extends from the solenoid 3 toward the valve body 33, and transmits the solenoid force to the valve body 33; and a vibration control spring 100 which penetrates the actuation rod 58, and energizes the actuation rod 58 inward in a radial direction to add sliding resistance.SELECTED DRAWING: Figure 1 |
