一、引言叶片泵是目前中高压系统中使用较广的一种泵。随着液压技术的不断发展,叶片泵正在不断地向高压化方向发展。目前,国外生产的叶片泵的压力级已达210巴,小流量的可达400巴,并且趋向低噪声,其噪声值可控制在65dB(A)以下。国外在噪声控制方面主要通过预压缩,防止叶片脱离定子以及减压等方法,其措施是: I. Introduction Vane pump is currently used in a wide range of high pressure pump. With the continuous development of hydraulic technology, vane pumps are continually increasing pressure direction. Currently, vane pumps produced abroad have a pressure level of 210 bar and a low flow rate of 400 bar, and tend to be low noise with a noise level below 65 dB (A). Foreign noise control mainly through pre-compression, to prevent the leaves from the stator and decompression and other methods, the measures are: