| 摘要 |
<p>A fluid flow regulator valve comprises a valve chamber having an inlet communicating with fluid under pressure, a service port communicating with a device operated by fluid pressure, and an outlet communicating with exhaust. In the chamber there is a movable valve member having a spring urging it to close the outlet. A flow-responsive element on the valve member causes a force, dependent on the rate of fluid flow through the chamber to act on the valve member in such a manner as to overcome the spring and move the valve member away from the outlet port when the rate of fluid flow reaches a certain value. The valve member and outlet port are so dimensioned that the pressure of fluid within the valve chamber assists the spring, so that the rate of fluid flow at which the outlet port is opened increases with increase of fluid pressure in the chamber.</p> |
