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轴向柱塞式电液泵的油隙损耗与机械效率

DOI: 10.13700/j.bh.1001-5965.2013.0438, PP. 769-774

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Abstract:

介绍了轴向柱塞式电液泵的结构与工作过程,分析了轴向柱塞式电液泵的各种机械损耗,建立了其机械效率的计算模型,在此基础上给出了定子与转子间油隙损耗与机械效率随转速、压力、温度变化的曲线.计算结果表明,研究的这种轴向柱塞式电液泵在油温50℃、转速4000r/min、压力28MPa时的油隙损耗只占总机械功率的1.737%,大大低于传统电机-泵组中电机的风扇与机械损耗,此时电液泵机械效率为92.6%,高于传统电机-泵组.机械效率的提高使得轴向柱塞式电液泵的总效率高于传统电机-泵组.分析了油隙长度对其损耗的影响,结果表明该电液泵油隙长度仍有减小的空间.

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