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本文介绍分片错齿齿轮泵降低流量脉动的工作原理，按此原理制造出两片错齿齿轮泵，与同规格ＣＢ齿轮泵进行流量脉动测试，以及进行测试结果的对比。
This paper introduces the working principle of the chip fault tooth gear pump to reduce the flow pulsation. According to this principle, two wrong tooth gear pumps are manufactured, compared with the flow pulse test of the same size CB gear pump, and the test results are compared.