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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qprovxz" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>河南銷售出油閥價(jià)格</p><p><span>***更新：</span>2020-06-21 16:16:54</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8ztf7qs" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">龍口市海特機(jī)械制造廠</a></p><p><span>聯(lián)系人：</span>傅文蓬</p><p><span>郵箱: </span>fuwp317@163.com</p><p><span>電話: </span>13964511317</p><p><span>傳真: </span>0535_8953396</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0535-8953396</p><p><span>地址: </span>山東省龍口市龍口高新技術(shù)產(chǎn)業(yè)園區(qū)朗源路166號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="pz38iht" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8w8koq2" class="box"><p><p style="text-indent:25px">出油閥是汽車上的部件之一，出油閥的下部呈十字?jǐn)嗝?，既能?dǎo)向，又能通過柴油。出油閥的錐面下有一個(gè)小的圓柱面，稱為減壓環(huán)帶，其作用是在供油終了時(shí)，使高壓油管內(nèi)的油壓迅速下降，避免噴孔處產(chǎn)生滴油現(xiàn)象。當(dāng)環(huán)帶落入閥座內(nèi)時(shí)則使上方容積很快增大，壓力迅速減小，河南銷售出油閥價(jià)格，停噴迅速，河南銷售出油閥價(jià)格。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，河南銷售出油閥價(jià)格、下往復(fù)運(yùn)動(dòng)，從而完成泵油任務(wù)，泵油過程可分為進(jìn)油-供油-回油三個(gè)階段。出油閥是噴油泵內(nèi)精密偶件之一，在噴油過程中擔(dān)負(fù)著重要任務(wù)對(duì)控制高壓系統(tǒng)的殘余壓力、噴油時(shí)刻、噴油規(guī)律、速度特性等都起著關(guān)鍵作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南銷售出油閥價(jià)格" src="http://tyunfile.71360.com/UpLoadFile/yantai1001/2019/6/636970831263921961/6369708312639219619078716.jpg"></div><p style="text-indent:25px">出油閥是一個(gè)單向閥，在彈簧壓力作用下，閥上部圓錐面與閥座嚴(yán)密配合，其作用是在停供時(shí)，將高壓油管與柱塞上端空腔隔絕，防止高壓油管內(nèi)的油倒流入噴油泵內(nèi)。節(jié)流式出油閥閥體、出油閥彈簧及彈簧座都由一只減容器代替。設(shè)計(jì)原則是，從噴油嘴反射的壓力波通過節(jié)流后使再次反射回去的波幅減小，使針閥不至于再次開啟，并且利用這一點(diǎn)使高壓油路在允許的相當(dāng)小減壓容積范圍內(nèi)實(shí)現(xiàn)減壓。在供油間歇期間，高壓油管內(nèi)壓力與低壓油腔壓力通過節(jié)流孔保持平衡減弱或二次噴射及穴蝕現(xiàn)象的產(chǎn)生。這種節(jié)流閥的突出優(yōu)點(diǎn)在于，在不增加噴油泵凸輪傳動(dòng)機(jī)構(gòu)負(fù)荷的情況下能達(dá)到明顯提高噴油壓力的目的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南銷售出油閥價(jià)格" src="http://tyunfile.71360.com/UpLoadFile/yantai1001/2019/6/636970831379897089/6369708313798970892860160.jpg"></div><p style="text-indent:25px">出油閥是噴油泵內(nèi)精密偶件之一，在噴油過程中擔(dān)負(fù)著重要任務(wù)對(duì)控制高壓系統(tǒng)的殘余壓力、噴油時(shí)刻、噴油規(guī)律、速度特性等都起著關(guān)鍵作用。 1894年魯?shù)罓柗颉さ胰麪柌裼蜋C(jī)采用了燃料泵直噴裝置。20世紀(jì)90年代誕生了高壓噴射技術(shù)，當(dāng)時(shí)英國(guó)人圓滿地解決了當(dāng)時(shí)作為主要課題的燃油計(jì)量、密封、輸送和分配問題。而這種系統(tǒng)的主要特征就是采用了一個(gè)止回閥單向閥，以此使穩(wěn)定和均勻的噴射成為可能。但當(dāng)在發(fā)動(dòng)機(jī)轉(zhuǎn)速較高和噴油量較大的情況下使用這種閥會(huì)增加二次噴射的傾向，并促使炭煙形成。造成壓力波動(dòng)的原因是噴油嘴端正向壓力波的反射而且隨轉(zhuǎn)速與負(fù)荷的增加而加重。之后由瑞典的公司通過采用一個(gè)減壓式出油閥將這一問題解決。當(dāng)供油結(jié)束時(shí)使噴油系高壓容積擴(kuò)大，一個(gè)固定容積從而使壓力下降。由于以后發(fā)展的燃燒過程要求有更高的噴油壓力，所以又產(chǎn)生了一個(gè)新的問題—— 穴蝕。為獲得安全無(wú)二次噴射，這種只能在一個(gè)工況點(diǎn)上獲得比較好效果的等容出油閥通常需要一個(gè)很大的減壓容積，這樣就會(huì)在噴油嘴、噴油管和噴油器體中產(chǎn)生空穴。由反射或是供油壓力波沖擊性填補(bǔ)這些空穴就會(huì)引起眾所周知的材料破壞。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/339651.html</p></div></div></div></div></div><div id="swogipm" class="page-right twoColRt"><div id="aurovs8" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t2dn8jg" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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