高壓往複泵的動力端，泵體為箱型結構，采用高強度鑄鐵鑄造。在設計時注意了防塵、fangshuijifeijianrunhuadeng。bengtishangbuzhuangyoutongqimao，yipinghengbengneiqiya，xiexiahoujiweizhuyoukong。dongliduanderunhuaxitongyibancaiyongfeijianrunhua
，yekegenjugongkuangyaoqiucaiyongqiangzhirunhua。

    高壓往複泵的液力端由泵頭，進排液閥
、柱zhu塞sai總zong成cheng等deng組zu成cheng。當dang柱zhu塞sai在zai曲qu軸zhou帶dai動dong下xia做zuo回hui程cheng運yun動dong時shi，泵beng頭tou工gong作zuo缸gang內nei腔qiang容rong積ji逐zhu漸jian增zeng大da
，壓ya力li逐zhu漸jian下xia降jiang，形xing成cheng了le局ju部bu真zhen空kong，排pai液ye閥fa處chu於yu關guan閉bi狀zhuang態tai；在zai壓ya差cha作zuo用yong下xia
，進jin液ye閥fa打da開kai，液ye體ti進jin入ru工gong作zuo缸gang。柱zhu塞sai繼ji續xu移yi動dong到dao回hui程cheng極ji限xian位wei置zhi時shi
，吸xi液ye過guo程cheng終zhong了le
，這zhe是shi工gong作zuo缸gang內nei吸xi液ye最zui多duo。當dang柱zhu塞sai做zuo進jin程cheng運yun動dong時shi

，工gong作zuo缸gang內nei的de容rong積ji逐zhu漸jian減jian小xiao，液ye體ti受shou擠ji壓ya，壓ya力li增zeng加jia，使shi進jin液ye閥fa關guan閉bi，排pai液ye閥fa打da開kai，液ye體ti從cong排pai出chu管guan中zhong排pai出chu，柱zhu塞sai達da到dao進jin程cheng極ji限xian位wei置zhi時shi，工gong作zuo腔qiang內nei的de容rong積ji最zui小xiao，排pai液ye過guo程cheng完wan畢bi。由you於yu柱zhu塞sai不bu斷duan地di往wang複fu運yun動dong，泵beng的de吸xi液ye
、排液過程就不斷交替進行
，高壓液體就不斷地輸出。

    gaoyawangfubengtongshizhuangyouyiliufa。gaiyiliufaqiyiliudingyazuoyong
，shiyalishuixitongbaochizaitiaodingzhishang。tadetedianshifamenchuyuchangkaizhuangtai。gaifayekeyongyugaoyashuixitongmianyuguozai，cishifamenchuyuguanbizhuangtai
，zuoanquanfashiyong。danggaoyashuixitongguozaishi，famendakai，gaoyashuixieliu。gongzuoyuanlishidanggaoyashuixitongchaoguotiaodingdegongzuoyalishi
，gaoyashuizuoyongyukongzhihuosaideli，dayudiexingdanhuangdeli
，kongzhihuosaixiangshangyidong，daidongfaganshangshendakaipanglu，shibufengaoyashuiyiliuhuidaoshuixiang。