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德國GSR是我們公司(si)的(de)主(zhu)營(ying)產(chan)品之(zhi)壹,我公司還德(de)國(guo)500個品牌(pai),歐州(zhou)300多個品牌(pai),美(mei)國(guo)200多個品牌(pai)貨源好,貨期短,保證原廠(chang)采購(gou)。
原理:通(tong)電(dian)時,電(dian)磁力把先導孔打(da)開(kai),上腔室(shi)壓(ya)力迅速(su)下(xia)降(jiang),在(zai)關(guan) 閉件周(zhou)圍(wei)形成上(shang)低下(xia)高的(de)壓(ya)差,流(liu)體(ti)壓(ya)力推動(dong)關(guan)閉件向上(shang)移(yi)動,閥門打(da)開(kai);斷電(dian)時,彈(dan)簧(huang)力把先導孔關(guan)閉,入口壓(ya)力通(tong)過(guo)旁(pang)通(tong)孔(kong)迅速(su)腔室(shi)在(zai)關(guan)閥件(jian)周圍(wei)形成(cheng)下(xia)低上(shang)高的(de)壓(ya)差,流(liu)體(ti)壓(ya)力推動(dong)關(guan)閉件向下(xia)移動(dong),關閉閥門。
GSR先導閥是(shi)壹種(zhong)先導閥與主(zhu)閥兩(liang)者(zhe)間相互(hu)的(de)閥體(ti)當電(dian)磁閥線(xian)圈(quan)通(tong)電(dian),動鐵(tie)芯與靜鐵(tie)芯吸(xi)合(he)使導閥孔(kong)開(kai)放,閥芯背(bei)腔的(de)壓(ya)力通(tong)過(guo)導閥孔(kong)流(liu)向出(chu)口(kou),此時閥芯背(bei)腔的(de)壓(ya)力低於(yu)進(jin)口(kou)壓(ya)力,利(li)用(yong)壓(ya)差使閥芯脫(tuo)離主(zhu)閥口(kou),介質從(cong)進(jin)口(kou)流(liu)向出(chu)口(kou)。當線(xian)圈(quan)斷電(dian),動鐵(tie)芯與靜鐵(tie)芯脫(tuo)離,關(guan)閉了導閥孔(kong),閥芯背(bei)腔壓(ya)力受進(jin)口(kou)壓(ya)力的(de)補(bu)充(chong)逐(zhu)漸趨於(yu)和(he)進(jin)口(kou)平(ping)衡,閥芯因彈(dan)簧(huang)力作用(yong)下(xia)把閥門緊密關閉。 特(te)點:功率(lv)消耗(hao)低、通(tong)徑(jing)較大(da),而(er)結(jie)構(gou)簡(jian)單、安(an)裝(zhuang)方向任意(yi),但(dan)只(zhi)能(neng)用於電(dian)磁閥兩(liang)端(duan)有(you)壹定(ding)壓(ya)差的(de)場(chang)合(he),主(zhu)要(yao)應用在(zai)汽(qi)車(che),電(dian)廠(chang),鋼(gang)廠(chang),船(chuan)廠(chang)等行(xing)業(ye)
1)GSR與固定(ding)液阻(zu)組成(cheng)先導控制(zhi)液(ye)橋(qiao),根據輸入信號對主(zhu)閥或次級(ji)閥或變量(liang)杠進(jin)行(xing)控制(zhi);
2)GSR首級(ji)先導閥的(de)流(liu)量(liang)壹(yi)般(ban)都只(zhi)在(zai)1升/分左(zuo)右,zui大(da)3升/分。二(er)級(ji)先導閥流(liu)量(liang)就(jiu)要(yao)根據實(shi)際需(xu)要(yao)決定(ding)。
3)GSR輸入信號都比(bi)較小(xiao);
4)GSR可(ke)以接受多(duo)種輸(shu)入方式(shi),如(ru)手動、電動、液(ye)動(dong)、氣動(dong)、機(ji)械凸輪、電比(bi)例(li)等(deng);
5)GSR在(zai)變(bian)量(liang)泵(beng)控制(zhi)等(deng)情況,多種先導閥形(xing)成模(mo)塊化(hua)結(jie)構(gou),多(duo)種功能取(qu)舍方便(bian);
6)GSR先導閥本身往往(wang)就(jiu)是壹(yi)種(zhong)小(xiao)規(gui)格(ge)控制(zhi)閥,多(duo)為(wei)壓(ya)力控制(zhi)閥。
部分(fen)型(xing)號:
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