液壓裝置-外文資料翻譯-液壓系統(tǒng)(存儲版)
【正文】 ressible fluid without modification. General considerations. The main requirements of a hydraulic pump capable of delivering sufficiently great a pressure to be of practical use, are: a. Means for controlling fluid leakage either by special seals or close working clearances. b. A substantially uniform, nonpulsating delivery. c. The absence of trapping of fluid during rotation, since the fluid is for all practical purpose inpressible. d. Mechanical balance to a sufficient degree to enable the pump to be run as fast as possible, to reduce bulk for a given output. e. Adequate provision for minimizing the effect of distortion of the working parts, casings, ect., due to the internal pressure in the pump. f. Low clearance volumes so that the pump will act momentarily during priming, or with aerated fluid, as a pressor, to discharge the air throug
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