Inzwa ye-oxygen Opel Astra

Kuhlelo lokuphathwa kwenjini ye-elekthronikhi (ECM), i-lambda probe inesibopho sokuqapha ukugcwala komoyampilo kumagesi akhipha umoya. Idatha yenzwa etholwe yi-ECU isetshenziselwa ukulungisa ukunikezwa kwengxube kaphethiloli emakamelweni avuthayo amasilinda.

Izinkomba zokucebisa noma ezithambile zikuvumela ukuthi usethe izilinganiso ezifanele zikaphethiloli nomoya-mpilo ukuze kushiswe ngokuphelele kanye nokusebenza kahle kweyunithi. Kuhlelo lwe-Opel Astra exhaust, inzwa ye-oxygen itholakala ngqo kusiguquli se-catalytic.

Idivayisi kanye nomgomo wokusebenza kwe-lambda probe

I-lambda probe ye-Opel Astra yesimanje yesizukulwane sakamuva ingeyohlobo lwe-broadband ene-galvanic cell esekelwe ku-zirconium dioxide. Idizayini ye-lambda probe iqukethe:

• Umzimba.
• I-electrode yokuqala yangaphandle ixhumene namagesi aphumayo.
• I-electrode yangaphakathi ixhumene nomkhathi.
• Uhlobo oluqinile lwe-galvanic cell (zirconium dioxide) etholakala phakathi kwama-electrode amabili ngaphakathi kwebhokisi.
• Ukushisisa intambo ukuze udale izinga lokushisa lokusebenza (cishe 320°C).
• Gcoba ku-casing ukuze uthole amagesi aphumayo.

Umjikelezo wokusebenza we-lambda probe usekelwe kumehluko ongaba khona phakathi kwama-electrode, ambozwe ngongqimba olukhethekile oluzwela umoya-mpilo (iplatinamu). I-electrolyte ishisa ngesikhathi sokudlula kwengxube yomoya womkhathi nama-ion omoya-mpilo namagesi okukhipha umoya, okuwumphumela wokuthi ama-voltage anamandla ahlukene avele kuma-electrode. Ukuphakama kwe-oxygen, i-voltage iyancipha. Umfutho kagesi we-amplitude ungena ku-ECU ngokusebenzisa iyunithi yokulawula, lapho uhlelo lulinganisa izinga lokugcwala kwesistimu yokukhipha umoya-mpilo ngokusekelwe kumanani we-voltage.

Ukuxilongwa nokushintshwa kwenzwa ye-oxygen

Ukuhluleka kwe "oksijini" kuholela ezinkingeni ngenjini:

• Ikhuphula ukugcwala kokuphumayo okuyingozi kumagesi aphumayo
• Ama-RPM awehlela kokungenzi lutho
• Kunokwenyuka kokusetshenziswa kukaphethiloli
• Ukunciphisa ukusheshisa kwemoto

Impilo yesevisi ye-lambda probe ku-Opel Astra ilinganiselwa ku-60-80 km. Ukuxilonga inkinga ngenzwa ye-oxygen kunzima kakhulu - idivayisi ayihluleki ngokushesha, kodwa kancane kancane, ukunikeza i-ECU amanani angalungile kanye nokwehluleka. Izimbangela zokugqoka ngaphambi kwesikhathi zingase zibe uphethiloli wekhwalithi ephansi, ukusebenza kwenjini enezici ezigugile zeqembu le-cylinder-piston, noma ukulungiswa kwe-valve okungafanele.

Ukwehluleka kwenzwa yomoya-mpilo kurekhodwa kulogi yenkumbulo ye-ODB, amakhodi amaphutha ayakhiqizwa, futhi ukukhanya "Kokuhlola Injini" kuphaneli yezinsimbi kuyakhanyisa. Ukususwa kwekhodi yephutha:

• I-P0133 - Ukufundwa kwamandla kagesi kuphezulu kakhulu noma kuphansi kakhulu.
• I-P1133 - Ukusabela okunensayo noma ukwehluleka kwezinzwa.

Ukungasebenzi kahle kwezinzwa kungabangelwa amasekhethi amafushane, izintambo eziphukile, i-oxidation yamatheminali, ukwehluleka kwe-vacuum (ukuvuza komoya emigqeni yokungena) kanye nezijovo ezingasebenzi kahle.

Ungahlola ngokuzimela ukusebenza kwenzwa usebenzisa i-oscilloscope ne-voltmeter. Ukuze uhlole, kala i-voltage phakathi kwentambo ye-pulse (+) - on the Opel Astra h wire black and ground - intambo emhlophe. Uma esikrinini se-oscilloscope i-amplitude yesiginali ngomzuzwana ihluka ukusuka ku-0,1 kuya ku-0,9 V, khona-ke i-lambda probe iyasebenza.

Kumele kukhunjulwe ukuthi inzwa ye-oxygen ihlolwe ngenjini efudumele kuze kufike ekushiseni okusebenzayo kokungenzi lutho.

Inqubo yokumiselela

Ukuze ushintshe inzwa ye-oxygen nge-Opel Astra h, ukhiye ongaphandle kwe-22 uyadingeka.

• Cindezela i-clamp yebhlokhi yehhanisi yezintambo kumatheminali e-lambda probe.

• Nqamula amahhanisi ezintambo enjinini.

• Susa ikhava yesivikelo sokushisa se-catalytic converter ku-manifold.

• Khipha inathi elivikela i-lambda probe ngokhiye othi "22".

• Khipha inzwa ye-oxygen kusukela ekukhwezeni okuhlukahlukene.

• I-lambda probe entsha ifakwe ngokulandelana okuphambene.

Lapho ushintsha, wonke umsebenzi kufanele wenziwe enjini epholile emazingeni okushisa angekho ngaphezu kwama-40-50 ° C. Ukuxhumana okunentambo kwenzwa entsha kuphathwa nge-thermal sealant ekhethekile engakwazi ukumelana namazinga okushisa aphezulu ukuvimbela "ukunamathela" nokuvimbela umswakama ukuthi ungangeni. Ama-O-rings nawo athathelwa indawo amasha (avame ukufakwa kukhithi entsha).

I-wiring kufanele ihlolwe umonakalo wokufakelwa, amakhefu kanye ne-oxidation kumatheminali okuxhumana, okuthi, uma kunesidingo, ahlanzwe nge-sandpaper enezinhlamvu ezinhle. Ngemuva kokufakwa, ukusebenza kwe-lambda probe kutholakala ngezindlela ezihlukile zokusebenza kwenjini: imizuzu emi-5-10 ngokungenzi lutho okuphansi, bese kukhuphuka isivinini kuye kumizuzu eyi-1-2.