Rumwe ruzivo nezve mota O2 sensor

Iyo mota O2 sensor ndiyo yakakosha mhinduro sensor mune yemagetsi mafuta jekiseni injini yekudzora system.Icho chikamu chakakosha chekudzora kubuda kwemotokari, kuderedza kusvibiswa kwemotokari kune nharaunda, uye kuvandudza kunaka kwekupisa kwemafuta einjini dzemotokari.Iyo O2 sensor yakaiswa pane injini yekupedza pombi.Tevere, ini ndichasuma rumwe ruzivo nezve mota O2 sensor.

Overview

Iyo mota yeO2 sensor ndeye sensor yekuona mudziyo inogona kuyera iyo oxygen concentration inoshandiswa mumotokari, uye ikozvino yave chiyero pamotokari.Iyo O2 sensor inonyanya kuwanikwa papombi yekupisa yeinjini yemotokari.Icho chinhu chakakosha chekunzwa mumagetsi emagetsi jekiseni injini yekudzora system.Icho zvakare chikamu chakakosha chekudzora kubuda kwemotokari, kuderedza kusvibiswa kwemotokari kune nharaunda, uye kuvandudza mhando yekupisa kwemafuta emotokari.

Number

Kazhinji, kune maviri maO2 sensors mumotokari, yekumberi O2 sensor uye yekumashure O2 sensor.Iyo yekumberi O2 sensor inowanzo kuisirwa pane exhaust manifold pamberi peiyo nzira nhatu-catalytic inoshandura uye inonyanya kuita basa rekugadzirisa musanganiswa.Iyo yekumashure O2 sensor inoiswa papombi yekuburitsa kuseri kweiyo nzira nhatu-catalytic inoshandura uye inonyanya kushandiswa kutarisa kushanda kweiyo nzira nhatu inoshandura inoshandura.

Principle　

Parizvino, iwo makuru maO2 sensors anoshandiswa mumotokari anosanganisira zirconium dioxide O2 sensors, titanium dioxide O2 sensors uye yakakura-nzvimbo O2 sensors.Pakati pavo, iyo inonyanya kushandiswa ndiyo zirconium dioxide O2 sensor.Inotevera inoshandisa zirconium dioxide O2 sensor semuenzaniso kukuzivisa iwe kune musimboti wemota O2 sensor.

Iyo zirconium dioxide O2 sensor inoumbwa ne zirconium chubhu (sensing element), electrode uye inodzivirira sleeve.Iyo zirconium chubhu chinhu chakasimba che electrolyte chakagadzirwa ne zirconium dioxide (ZrO2) ine chidimbu chidiki cheyttrium.Mativi emukati nekunze emu zirconium chubhu akaputirwa neturu yeporous platinum membrane electrodes.Iko mukati me zirconium tube yakazaruka kumhepo, uye kunze kunosangana nemhepo inopera.

Mukutaura kwakapfava, mota dzeO2 sensors dzinonyanya kuumbwa zirconia ceramics uye nhete yeplatinamu mukati nekunze kwekunze.Nzvimbo yemukati yakazadzwa neokisijeni-yakawanda kunze kwemhepo, uye nzvimbo yekunze inoratidzwa kune gasi rekubuda.Iyo sensor inoshongedzerwa neinodziya yedunhu.Mushure mekunge mota yatangwa, dunhu rekudziya rinogona kukurumidza kusvika 350 ° C inodiwa kuti ishande.Naizvozvo, iyo mota O2 sensor inonziwo inopisa O2 sensor.

Iyo O2 sensor inonyanya kushandisa ceramic seniti zvinhu kuyera iyo O2 inogona mupombi yekupopota yemotokari, uye inoverengera inoenderana O2 concentration nemusimboti wekemikari chiyero, kuitira kuti kupisa kwemhepo-mafuta reshiyo inogona kutariswa uye kudzorwa.Mushure mekutarisa chiyero chemhepo-mafuta akapfuma uye akaonda chiratidzo chegasi rakasanganiswa, chiratidzo chinoiswa kumota ECU, uye ECU inogadzirisa huwandu hwejekiseni reinjini zvinoenderana nechiratidzo kuti uwane yakavharwa-loop control, kuitira kuti catalytic converter inogona kuita zvirinani basa rayo rekucheneswa, uye pakupedzisira ive nechokwadi chekubuda kwemhepo kunoshanda.

Kunyanya, iyo nheyo yekushanda yemotokari O2 sensor yakafanana neiyo yebhatiri yakaoma, uye zirconium oxide element mu sensor inoita se electrolyte.Pasi pemamwe mamiriro ezvinhu, mutsauko weO2 wepakati pakati pemukati nekunze mativi e zirconia unogona kushandiswa kuunza mutsauko unogona kuitika, uye iyo yakakura mutsauko wekutarisa, iyo yakakura mutsauko unogona.Pasi pe catalysis yekushisa kwepamusoro uye platinamu, O2 inoiswa ionized.Nekuda kwekuwanda kweO2 ion mukati me zirconium chubhu uye kuderera kweiyo O2 ion kunze, pasi pekuita kweiyo O2 yekumisikidza musiyano, maion okisijeni anopararira kubva kudivi remhepo kuenda kudivi rekubuda, uye kusangana kwemaion pamativi ese. Musiyano unoburitsa simba re electromotive, zvichibva zvagadzira bhatiri rine musiyano muO2 concentration.

Iwe unoziva zvimwe nezve mota O2 sensor?Kana iwe uchida kutengesa O2 sensor, gamuchira kuti utaure nesu!

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