| 摘要 |
A three-port actuation valve, comprising: a valve housing portion having a supply port opening, a control port opening and an exhaust port opening each in selective fluid communication with a central opening of the valve housing portion; a housing disk having a stem portion and a disk portion, the stem portion being inserted into the central opening of the valve housing portion, the stem portion having an exhaust valve opening aligned with the supply port opening and an opening that aligns with the exhaust port opening; a poppet for selectively closing the exhaust valve opening, the poppet being slideably received within a central opening of the stem portion for movement between a first position and a second position; and at least one channel disposed in a surface of the disk portion, the at least one channel providing fluid communication between a periphery of the disk portion and a central opening of the stem portion.
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