| 摘要 |
<p>919,610. Valves; fluid-pressure servomotor control systems. GARRETT CORPORATION. June 10, 1959 [June 11, 1958], No. 19923/59. Class 135. [Also in Group XXVI] A speed-sensitive mechanism or governor 10 comprises a rotatable body 30 having one, or two diametrically opposite, fluid flow orifices 40 opening radially therefrom, the or each orifice being centrifugally controlled by a valve member 41 carried on a spring loop 45 which extends round the body and is secured thereto at points 43 on diametrically opposite sides of the body. The device is carried on the shaft 13 of an air turbine 11 which is supplied with working fluid through a butterfly valve 16. Control pressure fluid is supplied to a bore 38 of the body from the upstream side of the butterfly valve 16 through a restriction 25 and a fitting 26 which communicates with the bore 38. The control pressure thereby established downstream of the restriction 25 is applied to a spring-loaded diaphragm 20 which operates the butterfly valve through a crank 23.</p> |
