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气马达的进气容积和膨胀终了容积选择是否恰当,对气马达的性能有着决定性的影响。在已发表的许多文献中,设计气马达时,确定进气容积v_1和膨胀终了容积v_2,一般都是根据已知的气马达功率、进气压力及进排气温度来计算的。这是以压缩空气在气马达气缸(腔)内膨胀不致使温度降低到润滑油的凝固点为限制的,通常限制这个温度不低于243K～33K。
Whether the intake air volume of the air motor and the final volume of the expansion end are properly selected has a decisive influence on the performance of the air motor. In many published papers, when designing a gas motor, it is determined that the intake volume v_1 and the final volume v_2 are calculated based on the known gas motor power, intake pressure and intake / exhaust temperature. This is the compressed air in the air motor cylinder (cavity) expansion will not reduce the temperature to the freezing point of the oil as a limit, usually limit the temperature of not less than 243K ~ 33K.