CAPACITY CONTROL VALVE

DRIVE November 16, 2022
Source
There is provided a capacity control valve having good responsiveness during start-up and good control accuracy during normal control. A capacity control valve (V) for controlling a capacity of a fluid includes: a valve housing (10); a main valve (50) which is closing and opening a communication between a Pc port (14) and a Pd port (12) when a main valve portion (51a) of a main valve element (51) driven by a drive force of a solenoid (80) comes into contact with and separates from a main valve seat (10a); a pressure-sensitive valve (55) which is opened by an ambient pressure; a hollow tube member (52, 54) which forms a part of the pressure-sensitive valve (55) and allows the Pc port (14) to communicate with a Ps port (13) through a hollow communication path (56) formed therein when the pressure-sensitive valve (55) is opened; and an auxiliary communication path (90) which allows the Pc port (14) to communicate with the Ps port (13) independently of the pressure-sensitive valve (55), in which the auxiliary communication path (90) is configured to be able to increase a flow path cross-sectional area after the main valve (50) is closed.

Discussion in the ATmosphere

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