| 摘要 |
A valve has a valve body defining an exhaust port, a supply port, and a control port all aligned with each other, and a plunger assembly reciprocates in the valve body under the influence of an actuating solenoid. Plural balls are disposed in alignment in the valve body to establish a ball column, with the plunger assembly contacting a first end of the ball column and a spring disposed in compression to push opposite the plunger assembly against the second end of the ball column. The balls move axially in unison between a closed configuration, wherein fluid communication between the supply and control ports is blocked, and an open configuration, wherein fluid communication between the supply and control ports is not blocked.
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