柱塞EP9PW5PW5柱塞EP9PW3PW3柱塞EP9PW2PW2柱塞EP9PW12PW12柱塞EP9PL912PL912柱塞EP9090150-64706470柱塞EP9090150-60906090柱塞EP9090150-58825882柱塞EP9090150-57325732柱塞EP9090150-56835683柱塞EP9090150-56815681柱塞EP9090150-46914691柱塞EP9090150-46614661柱塞EP9090150-46604660柱塞EP9090150-32533253柱塞EP9090150-32523252柱塞EP9090150-27002700柱塞MW14184155491415-549柱塞MW14184155461415-546柱塞MW14184155451415-545柱塞MW14184155441415-544柱塞MW14184155361415-536柱塞MW14184155091415-509柱塞MW14184151161415-116柱塞MW14184151141415-114柱塞MW14184150961415-096柱塞MW14184150831415-083柱塞MW14184150821415-082柱塞MW14184150811415-081柱塞MW14184150771415-077柱塞MW14184150731415-073柱塞MW14184150661415-066柱塞MW14184150651415-065柱塞MW14184150511415-051柱塞MW14184150431415-043柱塞MW14184150751415/075柱塞P8500134110-1220P11柱塞P850024184559922455-992柱塞P850024184557222455-722柱塞P850024184555872455-587柱塞P850024184555652455-565柱塞P850024184555482455-548柱塞P850024184555422455-542柱塞P850024184555182455-518柱塞P850024184553692455-369柱塞P850024184553462455-346柱塞P850024184553382455-338柱塞PN090150-59715971柱塞PN090150-56735673柱塞PN090150-32503250柱塞PS7100X170SX170S柱塞PS7100X170X170柱塞PS7100PNU159PNU159柱塞PS7100134130-8820PD-3(分体）柱塞PS7100P66P66柱塞PS7100P60P60柱塞PS7100P597P597柱塞PS7100P58P58柱塞PS7100P564P564柱塞PS7100P542P542柱塞PS7100P539P539柱塞PS7100P530P530柱塞PS7100P511P511柱塞PS7100P509P509柱塞PS7100P505P505柱塞PS7100P25P25柱塞PS7100P13P13柱塞PS7100P12-U462P12-U462柱塞PS7100090150-64906490柱塞PS7100511511柱塞PS7100090150-37323732柱塞PS710024184459972455-997柱塞PS710024184557342455-734柱塞PS710024184557322455-732柱塞PS710024184557312455-731柱塞PS710024184557272455-727柱塞PS710024184557242455-724柱塞PS710024184557142455-714柱塞PS710024184557112455-711柱塞PS710024184555972455-597柱塞PS710024184555842455-584柱塞PS710024184555802455-580柱塞PS710024184555772455-577柱塞PS710024184555632455-563柱塞PS710024184555602455-560柱塞PS710024184555442455-544柱塞PS710024184555352455-535柱塞PS710024184555252455-525柱塞PS710024184555242455-524柱塞PS710024184555122455-512柱塞PS710024184555112455-511柱塞PS710024184555082455-508柱塞PS710024184555052455-505柱塞PS710024184555042455-504柱塞PS710024184555012455-501柱塞PS710024184553902455-390柱塞PS710024184553862455-386柱塞PS710024184553792455-379柱塞PS710024184553672455-367柱塞PS710024184553592455-359柱塞PS710024184553562455-356柱塞PS710024184553552455-355柱塞PS710024184553482455-348柱塞PS710024184553422455-342柱塞PS710024184553332455-333柱塞PS710024184553252455-325柱塞PS710024184553242455-324柱塞PS710024184553182455-318柱塞PS710024184553152455-315柱塞PS710024184553102455-310柱塞PS710024184553092455-309柱塞PS710024184553082455-308柱塞PS710024184553042455-304柱塞PS710024184552462455-246柱塞PS710024184551972455-197柱塞PS710024184551962455-196柱塞PS710024184551932455-193柱塞PS710024184551922455-192柱塞PS710024184551822455-182柱塞PS710024184551812455-181柱塞PS710024184551792455-179柱塞PS710024184551652455-165柱塞PS710024184551522455-152柱塞PS710024184551492455-149柱塞PS710024184551462455-146柱塞PS710024184551452455-145柱塞PS710024184551412455-141柱塞PS710024184551342455-134柱塞PS710024184551302455-130柱塞PS710024184551292455-129柱塞PS710024184551282455-128柱塞PS710024184551222455-122柱塞PS710014184151151415-115柱塞PWT24T24柱塞PW76537653柱塞PW64106410柱塞PW24184559282455-928柱塞TF019D03313CP2.2柱塞TICS24184259872425-987柱塞开窗式X922AX922A柱塞开窗式2418425989PW40柱塞开窗式PT78PT78柱塞开窗式PT77PT77柱塞开窗式PT27PT27柱塞开窗式PT25PT25柱塞开窗式PT22PT22柱塞开窗式PT20PT20柱塞开窗式24184259882425-988柱塞开窗式24184259812418425981柱塞偶件：柱塞和柱塞套是构成喷油泵中***精密的偶件。一般柱塞偶件用优质合金钢制造，经过精细加工和配对研磨，使配合间隙在0.0015~0.0025mm范围内。间隙过大，容易漏油，导致油压下降；间隙过少，对偶件润滑不利，容易卡死。柱塞偶件在使用中不能互换。工作过程：在保持柱塞行程的不变而靠柱塞遮闭油孔的时间长短来改变供油量。进油，当柱塞处于下止点，柱塞上部空腔与低压油路相通，柴油充满柱塞套筒内。供油，随着油泵凸轮轴的转动，凸轮顶滚轮，柱塞上移，柱塞弹簧被压缩，直至柱塞顶平面遮住套筒油孔的上边缘，这样在柱塞继续上移中柴油被压缩，当油压上升到能克服高压油管残余压力和出油阀弹簧压力时，出油阀打开，供油开始。随着油压的继续上升，进入高压油管的高压油足以克服喷油嘴弹簧压力，开始向燃烧室喷油。供油停止，喷油延续到柱塞斜槽与柱塞套筒上油孔相通为止，只要高压油腔与低压油道一沟通油压马上下降，出油阀在出油阀弹簧作用下立即关闭，随着油泵凸轮轴转动，柱塞到达***高位置，因柱塞弹簧的作用迅速下移。这就是一个供油过程的结束。)