液壓裝置-外文資料翻譯-液壓系統(tǒng)-wenkub
2023-01-30 03:46:10 本頁(yè)面
【正文】 ng 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 through the delivery line, instead of leaving it taped in the pump. g. Adequate inlet valve or port provision to enable the pump to create a good suction, or alternatively, as in the case of aircraft, to operate at high altitude, and with relatively thick fluids. It should be noted that the time of opening of the inlet valve or port is almost as important as the size of the port. The main requirements of a good pressor are: a. the smallest possible clearance volume patible with mechanical clearance。 d）缸體氣冷或水冷措施，使得壓縮機(jī)中氣體溫度盡可能保持等溫狀態(tài)，而被輸送的氣體體積相應(yīng)增加。 c）泵中空氣預(yù)壓縮壓力升高到輸送管線中壓力。 b）除低壓泵外，要有兩個(gè)或更多的壓縮階段。 g
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