Supporting most of the internal combustion engine self-priming pump, mounted on a Mobile small car, suitable for field work.

自吸泵大部分与内燃机配套，装在可移动的小车上，宜于野外作业。

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This paper introduces the design characteristics, working principle, performance test and test results of YYB20-24 single-phase self-priming pump and its mating motor.

详细地介绍了YYB20 - 24单相自吸泵及配套电机的设计特点、工作原理、性能测试及试验结果。

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Normally, the cumulated water in top cover is drained to cumulated water well by gravity drainage, in emergency situation, the water would be drained by the self-priming pump installed in gallery.

顶盖内积水正常情况下通过自流排水排至积水井，紧急状态下通过装在廊道内的自吸泵排水。

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