詳細(xì)介紹
柱塞泵德國Rexroth力士樂比例換向閥
德國Rexroth力士樂柱塞泵A4VG、系列 部分型號(hào)?;蛘咂渌吞?hào)聯(lián)我們
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A4VG280HP1D0000/40MRNE4T21F0000AS000 A4VG280HP1D0001/40MRNE4T21FA2S2AS000
A4VG280HP1D0000/40MLNE4T21F0000AS000 A4VG280HP1D0001/40MLNE4T21FA2S2AS000
A4VG280HP1DP003/40MRNE4T21F0000AS000 A4VG280HP1DP000/40MRNE4T21FA2S2AS000
A4VG280HP1DP003/40MLNE4T21F0000AS000 A4VG280HP1DP000/40MLNE4T21FA2S2AS000
回油進(jìn)程
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(shí),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,油壓俄然下降,出油閥在彈簧力的作用下活絡(luò)關(guān)閉,接連供油。此后柱塞還要上行,當(dāng)凸輪的凸起有些轉(zhuǎn)過去后,在彈簧的作用下,柱塞又下行。此刻便開端了下一個(gè)循環(huán)
A4VG280HP1D0002/40MRNE4T21F0000AS000 A4VG280HP1D0003/40MRNE4T21FA2S2AS000
A4VG280HP1D0002/40MLNE4T21F0000AS000 A4VG280HP1D0003/40MLNE4T21FA2S2AS000
A4VG045HT1D0003/40MRNC2S71F0000AS000 A4VG045HT1D0006/40MRNC2S71FA2S2AS000
A4VG045HT1D0003/40MLNC2S71F0000AS000 A4VG045HT1D0006/40MRNC2S71FA2S2AS000
當(dāng)凸輪軸轉(zhuǎn)到凸輪的凸起有些頂起滾輪體時(shí),柱塞彈簧被緊縮,柱塞向上運(yùn)動(dòng),燃油受壓,一有些燃油經(jīng)油孔流回噴油泵上體油腔。當(dāng)柱塞頂面遮住套筒行進(jìn)油孔的上緣時(shí),因?yàn)橹吞淄驳膮f(xié)作空位很?。?.0015-0.0025mm)使柱塞頂部的泵油室成為一個(gè)密封油腔,柱塞持續(xù)上升,泵油室內(nèi)的油壓活絡(luò)增加,泵油壓力>出油閥彈簧力+高壓油管剩下壓力時(shí),推開出油閥,高壓柴油經(jīng)出油閥進(jìn)入高壓油管,經(jīng)過噴油器噴入燃燒室。
柱塞泵德國Rexroth力士樂比例換向閥