美國(guó)原廠出售VICKERS柱塞泵 威格士柱塞泵，是由電動(dòng)機(jī)提供泵的動(dòng)力，經(jīng)鼓型齒聯(lián)軸器帶動(dòng)減速機(jī)轉(zhuǎn)動(dòng)。由減速機(jī)減速帶動(dòng)曲軸旋轉(zhuǎn)。通過(guò)曲柄連桿機(jī)構(gòu)，將旋轉(zhuǎn)運(yùn)動(dòng)轉(zhuǎn)變?yōu)槭诸^和柱塞為往復(fù)運(yùn)動(dòng)。當(dāng)柱塞向后死點(diǎn)移動(dòng)時(shí)，泵容積腔逐步增大，泵腔內(nèi)壓力降低，當(dāng)泵腔壓力低于進(jìn)口壓力時(shí)，吸入閥在進(jìn)口端壓力作用下開(kāi)啟，液體被吸入；當(dāng)柱塞向前死點(diǎn)移動(dòng)時(shí)，泵腔內(nèi)壓力增大，此時(shí)吸入閥關(guān)閉，排出閥打開(kāi)，液體被擠出液缸，達(dá)到了吸入和排出的目的。
美國(guó)原廠出售VICKERS柱塞泵 威格士柱塞泵是活塞或柱塞的往復(fù)運(yùn)動(dòng)方向與缸體中心軸平行的柱塞泵。軸向柱塞泵是利用與傳動(dòng)軸平行的柱塞在柱塞孔內(nèi)往復(fù)運(yùn)動(dòng)所產(chǎn)生的容積變化來(lái)進(jìn)行工作的。由于柱塞和柱塞孔都是圓形零件，加工時(shí)可以達(dá)到很高的精度配合，因此容積效率高，運(yùn)轉(zhuǎn)平穩(wěn)，流量均勻性好，噪聲低，工作壓力高等優(yōu)點(diǎn)，但對(duì)液壓油的污染較敏感，結(jié)構(gòu)較復(fù)雜，造價(jià)較高。
威格士柱塞泵工作階段
工作時(shí)，在噴油泵凸輪軸上的凸輪與柱塞彈簧的作用下，迫使柱塞作上、下往復(fù)運(yùn)動(dòng)，從而完成泵油任務(wù)，泵油過(guò)程可分為以下三個(gè)階段。
結(jié)論：通過(guò)上述討論，得出下列結(jié)論
① 柱塞往復(fù)運(yùn)動(dòng)總行程L是不變的，由凸輪的升程決定。
② 柱塞每循環(huán)的供油量大小取決于供油行程，供油行程不受凸輪軸控制是可變的。
③ 供油開(kāi)始時(shí)刻不隨供油行程的變化而變化。
④ 轉(zhuǎn)動(dòng)柱塞可改變供油終了時(shí)刻，從而改變供油量
常用型號(hào)
PVH131L12AF30B282000001AD2AA010A   PVH131C-LAF-12D-11-C28V-31
PVH131L12AF30B252000001AD100010A   PVH131C-LAF-12S-10-C25V-31
PVH131L12AF30B252000001AD1BG010A   PVH131C-LAF-12S-10-C25V-31-159
PVH131L12AF30K250000001AD100010A   PVH131C-LAF-12S-10-EDC25-10
PVH131L12AF30A130000AG1AD1AA010A   PVH131C-LAF-12S-11-C13-31
PVH131L16AF30A250000001AD100010A   PVH131C-LAF-16S-10-C25-31
PVH131L16AF30B252000001AD100010A   PVH131C-LAF-16S-10-C25V-31
PVH131L16AF30D180006001AT1AA010A   PVH131C-LAF-16S-11-C18T6-31-CD-031
PVH131L16AF30D250004001AD1AA010A   PVH131C-LAF-16S-11-C25T4-31
PVH131L02AF30B212000001AD200010A   PVH131C-LAF-2D-10-C21V-31-036
PVH131L02AF30B212000001AD2AA010A   PVH131C-LAF-2D-11-C21V-31-036
PVH131L03AF30E272015001AD2AA010A   PVH131C-LAF-3D-11-C27VT15-31
PVH131L03AF30A250000001AD100010A   PVH131C-LAF-3S-10-C25-31
PVH131L03AF30B252000001AD100010A   PVH131C-LAF-3S-10-C25V-31
PVH131L03AF30E252004001AD1AA010A   PVH131C-LAF-3S-11-C25VT4-31
PVH131L03AF30F282014001AT1AA010A   PVH131C-LAF-3S-11-C28VT14S-31-31
PVH131L12AF30B252000001AJ200010A   PVH131C-LBF-12D-10-C25V-31
PVH131L12AF30B252000001AJ100010A   PVH131C-LBF-12S-10-C25V-31
PVH131L12AF30B252000001AY100010A   PVH131C-LBF-12S-10-C25V-31-114
PVH131L12AF30B502000001AJ1AA010A   PVH131C-LBF-12S-11-C31V-31
PVH131L02AF30B162000001AJ1AA010A   PVH131C-LBF-2S-11-C16V-31
PVH131L02AF30B252000001AJ1AA010A   PVH131C-LBF-2S-11-C25V-31
PVH131L03AF30B252000001AJ1AA010A   PVH131C-LBF-3S-11-C25V-31
PVH131L12AF30B252000001AM2AA010A   PVH131C-LCF-12D-11-C25V-31
PVH131L12AF30B482000001AA1AA010A   PVH131C-LCF-12S-11-C275V-31-CD-114
PVH131L16AF30B252000001AM100010A   PVH131C-LCF-16S-10-C25V-31
PVH131L03AF30B252000001AM1AA010A   PVH131C-LCF-3S-11-C25V-31
PVH131L12AF30A250000001002AA010A   PVH131C-LF-12D-11-C25-31
PVH131L12AF30B25200000100100010A   PVH131C-LF-12S-10-C25V-31
PVH131L12AF30B252000001001AM010A   PVH131C-LF-12S-10-C25V-31-118
PVH131L33AF30B252000001002AA010A   PVH131C-LF-13D-11-C25V-31-259
PVH131L13AF30A25000000100100010A   PVH131C-LF-13S-10-C25-31
PVH131L13AF30B25200000100100010A   PVH131C-LF-13S-10-C25V-31
PVH131L13AF30B192000AK1001AA010A   PVH131C-LF-13S-11-C19V-31-188
PVH131L13AF30B252000001001AA010A   PVH131C-LF-13S-11-C25V-31
PVH131L29AF30B25200000100100010A   PVH131C-LF-29S-10-C25V-31-046
PVH131L29AF30B25340000100100010A   PVH131C-LF-29S-10-C25V34-31-CD-046
PVH131L02AF30B21200000100200010A   PVH131C-LF-2D-10-C21V-31-046
PVH131L02AF30B252000001002AA010A   PVH131C-LF-2D-11-C25V-31
PVH131L02AF30B252000001008AA010A   PVH131C-LF-2D-11-C25V-31-214
PVH131L02AF30B25200000100100010A   PVH131C-LF-2S-10-C25V-31-046
PVH131L02AF30B252000AL1001AP010A   PVH131C-LF-2S-10-C25V-31-208
PVH131L02AF30B192000AA1001AA010A   PVH131C-LF-2S-11-C19VB-31-CD
PVH131L02AF30B252000001001AA010A   PVH131C-LF-2S-11-C25V-31-046
PVH131L02AF30B253100001001AA010A   PVH131C-LF-2S-11-C25V31-31
PVH131L02AF30B282000AR1001AT010A   PVH131C-LF-2S-11-C28VB-31-220
PVH131L02AF30B282000BK1001AT010A   PVH131C-LF-2S-11-C28VB-31-255
PVH131L03AF30B172000001002AA010A   PVH131C-LF-3D-11-C17V-31
PVH131L03AF30A25000000100100010A   PVH131C-LF-3S-10-C25-31
PVH131L03AF30B25200000100100010A   PVH131C-LF-3S-10-C25V-31
PVH131L03AF30K25000000100100010A   PVH131C-LF-3S-10-EDC25-10
PVH131L03AF30E252015001001AA010A   PVH131C-LF-3S-11-C25VT15-31
PVH131L12AJ30B252000002001AA010A   PVH131C-LSF-12S-11-C25V-31
PVH131L13AF30A25000000200100010A   PVH131C-LSF-13S-10-C25-31
PVH131L02AJ30B252000002001AA010A   PVH131C-LSF-2S-11-C25V-31
PVH131L03AF30B25200000200100010A   PVH131C-LSF-3S-10-C25V-31
PVH131L03AF30B252000002001AP010A   PVH131C-LSF-3S-10-C25V-31-164
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