BURKERT流量傳感器技術資料，寶德8032系列傳感器供應

結構型式

電子控制汽(qi)油噴射系統的空氣流量傳(chuan)感器有多種型(xing)式(shi)，目前常見的空氣流量傳(chuan)感器按其結(jie)構型(xing)式(shi)可(ke)分為葉片（翼(yi)板）式(shi)、量芯式(shi)、式(shi)、熱膜(mo)式(shi)、卡門渦旋式(shi)等幾種。

折疊編輯本段葉片式

葉片式空(kong)氣流量傳感器的(de)結構、工作原理及(ji)檢測

折疊結構及工作原理

傳統(tong)(tong)的(de)(de)(de)波(bo)許L型汽油噴射系統(tong)(tong)及些中檔車(che)型采用(yong)這種葉片(pian)(pian)(pian)式空氣(qi)(qi)(qi)流(liu)(liu)量(liang)傳感器，如(ru)(ru)豐田(tian)CAMRY（佳美）小(xiao)轎車(che)、豐田(tian)PREⅥA（大霸(ba)王）小(xiao)客車(che)、馬(ma)自(zi)達MPV多用(yong)途(tu)汽車(che)等(deng)。其(qi)結構如(ru)(ru)圖(tu)(tu) 1所示(shi)，由空氣(qi)(qi)(qi)流(liu)(liu)量(liang)計(ji)和電(dian)(dian)位(wei)(wei)計(ji)兩部分(fen)組(zu)成。空氣(qi)(qi)(qi)流(liu)(liu)量(liang)計(ji)在進(jin)(jin)(jin)氣(qi)(qi)(qi)通(tong)道內有個可(ke)繞軸擺(bai)動(dong)的(de)(de)(de)旋轉翼片(pian)(pian)(pian)（測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)），如(ru)(ru)圖(tu)(tu) 2所示(shi)，作用(yong)在軸上(shang)的(de)(de)(de)卷簧可(ke)使(shi)測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)關閉(bi)進(jin)(jin)(jin)氣(qi)(qi)(qi)通(tong)路。發(fa)動(dong)機工作時，進(jin)(jin)(jin)氣(qi)(qi)(qi)氣(qi)(qi)(qi)流(liu)(liu)經過(guo)空氣(qi)(qi)(qi)流(liu)(liu)量(liang)計(ji)推(tui)(tui)(tui)動(dong)測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)偏轉，使(shi)其(qi)開(kai)啟。測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)開(kai)啟角(jiao)度(du)的(de)(de)(de)大小(xiao)取決于(yu)進(jin)(jin)(jin)氣(qi)(qi)(qi)氣(qi)(qi)(qi)流(liu)(liu)對測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)的(de)(de)(de)推(tui)(tui)(tui)力(li)(li)與(yu)測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)軸上(shang)卷簧彈(dan)力(li)(li)的(de)(de)(de)平衡(heng)狀況。進(jin)(jin)(jin)氣(qi)(qi)(qi)量(liang)的(de)(de)(de)大小(xiao)由駕駛員操縱節氣(qi)(qi)(qi)門來改變(bian)(bian)。進(jin)(jin)(jin)氣(qi)(qi)(qi)量(liang)愈大，氣(qi)(qi)(qi)流(liu)(liu)對測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)的(de)(de)(de)推(tui)(tui)(tui)力(li)(li)愈大，測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)的(de)(de)(de)開(kai)啟角(jiao)度(du)也就愈大。在測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)軸上(shang)連(lian)著個電(dian)(dian)位(wei)(wei)計(ji)，如(ru)(ru)圖(tu)(tu) 3所示(shi)。電(dian)(dian)位(wei)(wei)計(ji)的(de)(de)(de)滑(hua)動(dong)臂(bei)與(yu)測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)同軸同步轉動(dong)，把測(ce)(ce)(ce)量(liang)片(pian)(pian)(pian)開(kai)啟角(jiao)度(du)的(de)(de)(de)變(bian)(bian)化（即進(jin)(jin)(jin)氣(qi)(qi)(qi)量(liang)的(de)(de)(de)變(bian)(bian)化）轉換(huan)為電(dian)(dian)阻(zu)(zu)值(zhi)的(de)(de)(de)變(bian)(bian)化。電(dian)(dian)位(wei)(wei)計(ji)通(tong)過(guo)導(dao)線、連(lian)接器與(yu)ECU連(lian)接。ECU根(gen)據電(dian)(dian)位(wei)(wei)計(ji)電(dian)(dian)阻(zu)(zu)的(de)(de)(de)變(bian)(bian)化量(liang)或作用(yong)在其(qi)上(shang)的(de)(de)(de)電(dian)(dian)壓(ya)的(de)(de)(de)變(bian)(bian)化量(liang)，測(ce)(ce)(ce)得發(fa)動(dong)機的(de)(de)(de)進(jin)(jin)(jin)氣(qi)(qi)(qi)量(liang)，如(ru)(ru)圖(tu)(tu) 4所示(shi)。

在(zai)葉片式(shi)空氣流量傳感器內，通(tong)(tong)常還有電動汽(qi)油(you)泵(beng)(beng)開關(guan)(guan)，如(ru)圖 5所示。當(dang)發動機起動運(yun)轉時(shi)，測(ce)量片偏轉，該開關(guan)(guan)觸(chu)點(dian)閉(bi)(bi)合，電動汽(qi)油(you)泵(beng)(beng)通(tong)(tong)電運(yun)轉；發動機熄火后，測(ce)量片在(zai)回轉關(guan)(guan)閉(bi)(bi)位置(zhi)的同(tong)時(shi)，使電動汽(qi)油(you)泵(beng)(beng)開關(guan)(guan)斷開。此(ci)時(shi)，即使點(dian)火開關(guan)(guan)處于開啟位置(zhi)，電動汽(qi)油(you)泵(beng)(beng)也不工(gong)作(zuo)。

BURKERT流量傳感器技術資料，寶德8032系列傳感器供應