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威格士柱塞泵柱塞往復(fù)運動總行程L是不變的,由凸輪的升程決定。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。VICKERS威格士PVH柱塞泵 VICKERS威格士PVH柱塞泵
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供油開始時刻不隨供油行程的變化而變化。轉(zhuǎn)動柱塞可改變供油終了時刻,從而改變供油量。柱塞泵工作時,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)運動,從而完成泵油任務(wù),泵油過程可分為以下三個階段。
1、進油過程
當(dāng)凸輪的凸起部分轉(zhuǎn)過去后,在彈簧力的作用下,柱塞向下運動,柱塞上部空間(稱為泵油室)產(chǎn)生真空度,當(dāng)柱塞上端面把柱塞套上的進油孔打開后,充滿在油泵上體油道內(nèi)的柴油經(jīng)油孔進入泵油室,柱塞運動到下止點,進油結(jié)束。
2、供油過程
當(dāng)凸輪軸轉(zhuǎn)到凸輪的凸起部分頂起滾輪體時,柱塞彈簧被壓縮,柱塞向上運動,燃油受壓,一部分燃油經(jīng)油孔流回噴油泵上體油腔。當(dāng)柱塞頂面遮住套筒上進油孔的上緣時,由于柱塞和套筒的配合間隙很小(0.0015-0.0025mm)使柱塞頂部的泵油室成為一個密封油腔,柱塞繼續(xù)上升,泵油室內(nèi)的油壓迅速升高,泵油壓力>出油閥彈簧力+高壓油管剩余壓力時,推開出油閥,高壓柴油經(jīng)出油閥進入高壓油管,通過噴油器噴入燃燒室。
3、回油過程
威格士柱塞向上供油,當(dāng)上行到柱塞上的斜槽(停供邊)與套筒上的回油孔相通時,泵油室低壓油路便與柱塞頭部的中孔和徑向孔及斜槽溝通,油壓驟然下降,出油閥在彈簧力的作用下迅速關(guān)閉,停止供油。此后柱塞還要上行,當(dāng)凸輪的凸起部分轉(zhuǎn)過去后,在彈簧的作用下,柱塞又下行。此時便開始了下一個循環(huán)。
威格士柱塞泵是往復(fù)泵的一種,屬于體積泵,其柱塞靠泵軸的偏心轉(zhuǎn)動驅(qū)動,往復(fù)運動,其吸入和排出閥都是單向閥。當(dāng)柱塞外拉時,工作室內(nèi)壓力降低,出口閥關(guān)閉,低于進口壓力時,進口閥打開,液體進入;柱塞內(nèi)推時,工作室壓力升高,進口閥關(guān)閉,高于出口壓力時,出口閥打開,液體排出。帶滑靴結(jié)構(gòu)的軸向柱塞泵是目前使用zui廣泛的軸向柱塞泵,安放在缸體中的柱塞通過滑靴與斜盤相接觸,當(dāng)傳動軸帶動缸體旋轉(zhuǎn)時,斜盤將柱塞從缸體中拉出或推回,完成吸排油過程。柱塞與缸孔組成的工作容腔中的油液通過配油盤分別與泵的吸、排油腔相通。變量機構(gòu)用來改變斜盤的傾角,通過調(diào)節(jié)斜盤的傾角可改變泵的排量。
/東莞威格士
威格士柱塞泵系列:
PVQ系列:PVQ5、PVQ10、PVQ15、PVQ20、PVQ25、PVQ29、PVQ45
PVB系列:PVB5、PVB10、PVB15、PVB20、PVB25、PVB29、PVB45
PVH系列:PVH57、PVH74、PVH98、PVH131、PVH141
PVM系列:PVM018/020、PVM040/050、PVM057/063、PVM074/081、PVM098/106、PVM131/141
PVXS(PF)系列:PVXS066、PVXS090、PVXS130、PVXS180、PVXS250等。
威格士PVH柱塞泵:VICKERS PISTON PUMP:
PVH074R01AA10A25000000100100010A PVH74C-RF-1S-10-C25-31 VICKERS PISTON PUMP
PVH074R01AA10B25200000100100010A PVH74C-RF-1S-10-C25V-31 VICKERS PISTON PUMP
PVH074R01AA10A250000001001AA010A PVH74C-RF-1S-11-C25-31 VICKERS PISTON PUMP
PVH074R01AA10B252000001001AA010A PVH74C-RF-1S-11-C25V-31 VICKERS PISTON PUMP
PVH074R02AA10A25000000100100010A PVH74C-RF-2S-10-C25-31 VICKERS PISTON PUMP
PVH074R02AA10B25200000100100010A PVH74C-RF-2S-10-C25V-31 VICKERS PISTON PUMP
PVH074R02AA10B252000001001AA010A PVH74C-RF-2S-11-C25V-31 VICKERS PISTON PUMP
PVH074R01AA10A25000000200100010A PVH74C-RSF-1S-10-C25-31 VICKERS PISTON PUMP
PVH074R01AA10B25200000200100010A PVH74C-RSF-1S-10-C25V-31 VICKERS PISTON PUMP
PVH074R01AA10A250000002001AA010A PVH74C-RSF-1S-11-C25-31 VICKERS PISTON PUMP
PVH074R02AA10A25000000200100010A PVH74C-RSF-2S-10-C25-31 VICKERS PISTON PUMP
PVH074R02AA10B25200000200100010A PVH74C-RSF-2S-10-C25V-31 VICKERS PISTON PUMP
PVH074R01AA10A250000001001AB010A PVH74QIC-RF-1S-10-C25-31 VICKERS PISTON PUMP
PVH074R01AA10B252000001001AB010A PVH74QIC-RF-1S-10-C25V-31 VICKERS PISTON PUMP
PVH074R01AA10A250000001001AE010A PVH74QIC-RF-1S-11-C25-31 VICKERS PISTON PUMP
PVH074R01AA10B252000001001AE010A PVH74QIC-RF-1S-11-C25V-31 VICKERS PISTON PUMP
PVH074R02AA10A250000001001AB010A PVH74QIC-RF-2S-10-C25-31 VICKERS PISTON PUMP
PVH074R02AA10B252000001001AB010A PVH74QIC-RF-2S-10-C25V-31 VICKERS PISTON PUMP
PVH074R02AA10A250000001001AE010A PVH74QIC-RF-2S-11-C25-31 VICKERS PISTON PUMP
PVH074R02AA10B252000001001AE010A PVH74QIC-RF-2S-11-C25V-31 VICKERS PISTON PUMP
PVH074R01AB10A250000001001AB010A PVH74QIC-RM-1S-10-C25-31 VICKERS PISTON PUMP
PVH074R02AB10A250000001001AE010A PVH74QIC-RM-2S-11-C25-31 VICKERS PISTON PUMP
PVH074R01AA10A250000002001AB010A PVH74QIC-RSF-1S-10-C25-31 VICKERS PISTON PUMP
PVH074R01AA10B252000002001AB010A PVH74QIC-RSF-1S-10-C25V-31 VICKERS PISTON PUMP
/東莞威格士
PVH074R01AA10A250000002001AE010A PVH74QIC-RSF-1S-11-C25-31 VICKERS PISTON PUMP
PVH074R02AA10A250000002001AB010A PVH74QIC-RSF-2S-10-C25-31 VICKERS PISTON PUMP
PVH074R02AA10A250000002001AE010A PVH74QIC-RSF-2S-11-C25-31 VICKERS PISTON PUMP
PVH074R01AB10A250000002001AE010A PVH74QIC-RSM-1S-11-C25-31 VICKERS PISTON PUMP
VICKERS威格士PVH098型號.
PVH098R01AJ30A25000000100100010A PVH98C-RF-1S-10-C25-31 VICKERS PISTON PUMP
PVH098R01AJ30B25200000100100010A PVH98C-RF-1S-10-C25V-31 VICKERS PISTON PUMP
PVH098R01AJ30B252000001001AA010A PVH98C-RF-1S-11-C25V-31 VICKERS PISTON PUMP
PVH098R02AJ30A25000000100100010A PVH98C-RF-2S-10-C25-31 VICKERS PISTON PUMP
PVH098R02AJ30B25200000100100010A PVH98C-RF-2S-10-C25V-31 VICKERS PISTON PUMP
PVH098R02AJ30B252000001001AA010A PVH98C-RF-2S-11-C25V-31 VICKERS PISTON PUMP
PVH098R01AJ30A25000000200100010A PVH98C-RSF-1S-10-C25-31 VICKERS PISTON PUMP
PVH098R01AJ30B25200000200100010A PVH98C-RSF-1S-10-C25V-31 VICKERS PISTON PUMP
PVH098R02AJ30A25000000200100010A PVH98C-RSF-2S-10-C25-31 VICKERS PISTON PUMP
PVH098R02AJ30B25200000200100010A PVH98C-RSF-2S-10-C25V-31 VICKERS PISTON PUMP
PVH098R01AJ30A250000001001AB010A PVH98QIC-RF-1S-10-C25-31 VICKERS PISTON PUMP
PVH098R01AJ30B252000001001AB010A PVH98QIC-RF-1S-10-C25V-31 VICKERS PISTON PUMP
PVH098R01AJ30A250000001001AE010A PVH98QIC-RF-1S-11-C25-31 VICKERS PISTON PUMP
PVH098R02AJ30B252000001001AB010A PVH98QIC-RF-2S-10-C25V-31 VICKERS PISTON PUMP
PVH098R02AJ30A250000001001AE010A PVH98QIC-RF-2S-11-C25-31 VICKERS PISTON PUMP
PVH098R01AD30A250000001001AB010A PVH98QIC-RM-1S-10-C25-31 VICKERS PISTON PUMP
PVH098R01AD30A250000001001AE010A PVH98QIC-RM-1S-11-C25-31 VICKERS PISTON PUMP
PVH098R01AJ30A250000002001AB010A PVH98QIC-RSF-1S-10-C25-31 VICKERS PISTON PUMP
PVH098R01AJ30B252000002001AB010A PVH98QIC-RSF-1S-10-C25V-31 VICKERS PISTON PUMP
PVH098R01AJ30A250000002001AE010A PVH98QIC-RSF-1S-11-C25-31 VICKERS PISTON PUMP
PVH098R02AJ30A250000002001AB010A PVH98QIC-RSF-2S-10-C25-31 VICKERS PISTON PUMP
PVH098R02AJ30A250000002001AE010A PVH98QIC-RSF-2S-11-C25-31 VICKERS PISTON PUMP
PVH098R01AD30A250000002001AB010A PVH98QIC-RSM-1S-10-C25-31 VICKERS PISTON PUMP
PVH098R01AD30A250000002001AE010A PVH98QIC-RSM-1S-11-C25-31 VICKERS PISTON PUMP
PVH098R01AD30B252000002001AE010A PVH98QIC-RSM-1S-11-C25V-31 VICKERS PISTON PUMP