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2025-01-15 03:46 本頁(yè)面
【正文】 Hydraulic Systems Sources of Pressure Pumps and Compressors Fundamentally most pumps suitable for pumping hydraulic fluid will operate with air or gas, although most oil pumps make poor air pressors, and some pressors will not operate with inpressible 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 minimizi
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