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1．液压泵液压泵流量脉动引起泵出口及管路的压力脉动,产生流体噪声;困油区的压力冲击及柱塞泵的倒流都会产生噪声,如斜盘式轴向柱塞泵(零开口对称配流盘)的缸体旋转过程中,位于上死点(下死点也有冲击)柱塞腔内的压力油在与排油腔接通的瞬间,从吸油状态突然变为排油状态,会产生很大的压力冲击,排油腔液体向柱塞腔倒流,使
1. Hydraulic pump Hydraulic pump flow pulsation caused by the pump outlet and the pipeline pressure pulsation, resulting in fluid noise; trapped oil pressure and the impact of the plunger pump will have a back flow of noise, such as swash plate type axial piston pump (zero opening symmetrical flow Plate) of the cylinder rotation process, located in the top dead center (bottom dead center also have impact) the pressure in the plunger cavity connected with the discharge chamber at the moment, suddenly changed from the suction state of oil discharge will have a very Large pressure impact, drain chamber liquid back to the plunger cavity, so