上海維特銳實(shí)業(yè)發(fā)展有限公司
主營(yíng)產(chǎn)品: ATOS阿托斯閥,賀德克傳感器,ACE緩沖器 |
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上海維特銳實(shí)業(yè)發(fā)展有限公司
主營(yíng)產(chǎn)品: ATOS阿托斯閥,賀德克傳感器,ACE緩沖器 |
聯(lián)系電話
REXROTH力士樂(lè)柱塞泵*
力士樂(lè)REXROTH柱塞泵進(jìn)油過(guò)程:
當(dāng)凸輪的凸起部分轉(zhuǎn)過(guò)去后,在彈簧力的作用下,柱塞向下運(yùn)動(dòng),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(jìn)油孔打開(kāi)后,充滿在油泵上體油道內(nèi)的柴油經(jīng)油孔進(jìn)入泵油室,柱塞運(yùn)動(dòng)到下止點(diǎn),進(jìn)油結(jié)束。
REXROTH柱塞泵供油過(guò)程:
當(dāng)凸輪軸轉(zhuǎn)到凸輪的凸起部分頂起滾輪體時(shí),柱塞彈簧被壓縮,柱塞向上運(yùn)動(dòng),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(jìn)油孔的上緣時(shí),由于柱塞和套筒的配合間隙很?。?.0015-0.0025mm)使柱塞頂部的泵油室成為一個(gè)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(shí),推開(kāi)出油閥,高壓柴油經(jīng)出油閥進(jìn)入高壓油管,通過(guò)噴油器噴入燃燒室。
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