| 摘要 |
<p>A differential pressure detector for providing an output pressure modulated as a function of the pressure drop between the pressures upstream and downstream of a fuel metering device, comprising first and second input chambers for connection to said upstream and downstream pressures respectively, a modulated pressure output chamber, a sleeve which is linearly movable in response to changes in the difference between the pressures in the first and second input chambers, and a fixed slide valve which is partly received in the sleeve and which has a bore opening into the output chamber and at least one side port for communicating the first input chamber with the output chamber via the slide valve bore, the aperture of the side port being varied by linear movement of the sleeve to control the communication between the first input chamber and the output chamber. The detector has reduced reaction forces and is particularly suitable for use in a fuel flow regulating system.</p> |
