| 摘要 |
A cartridge valve assembly includes a body having a central bore, a first port, a second port, and a third port fluidly connected to the central bore. The cartridge valve assembly further includes a main spool positioned within the central bore and being movable between at least a first position and a second position. The main spool forms, within the central bore, a first chamber, and a second chamber, and a control chamber. The cartridge valve assembly also includes a first passage fluidly communicating the first chamber with the second chamber, and an actuator adapted to apply a force to a first end of the main spool. The cartridge valve assembly further includes a feedback spool having an end exposed to a feedback chamber formed within the body, and a second passage fluidly communicating the control chamber with the feedback chamber.
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