Sensor yaku Continental imapangitsa kuti injini za dizilo zikhale zotsuka
Madalaivala azindikira tsopano ngati galimoto yawo ikukwaniritsa milingo yoyenera kutulutsa.
Kutulutsa mpweya pambuyo pobwezeretsa ndikofunikira kwambiri kuti muchepetse mpweya woyipa pagalimoto.
Kuphatikiza pa kuchepetsa mpweya wa carbon dioxide (CO2), kuchepetsa ma nitrojeni owopsa ndivuto lalikulu kwambiri pamsika wamagalimoto. Ichi ndichifukwa chake wopanga matayala aku Germany komansoopanga ukadaulo wamagalimoto ku Continental akugwira ntchito yopanga Selective Catalytic Reduction (SCR) system mu 2011.
Magalimoto ambiri okwera dizilo ndi magalimoto ogulitsa ali kale ndi makina a SCR. Mwaukadaulo uwu, yankho lamadzimadzi la urea limayankhidwa ndi nayitrogeni oxides mumagetsi otulutsa utsi, motero ma nitrojeni owopsa amasinthidwa kukhala nayitrogeni wosavulaza ndi madzi. Kuchita bwino kwa njirayi kumadalira muyeso wolondola wa urea ndi kusinkhasinkha. Ndi chifukwa cha kufunika kwa maselowa kuti Continental ikukhazikitsa sensa yodzipereka koyamba kuti athandizire kukonza magwiridwe antchito a SCR ndikuyeza momwe amagwirira ntchito. Chojambulira cha urea chimatha kuyeza mtundu, mulingo ndi kutentha kwa yankho la urea mu thanki. Opanga magalimoto angapo akukonzekera kugwiritsa ntchito ukadaulo watsopanowu ku mitundu yawo.
"Tekinoloje yathu ya urea sensor ndiyothandizana ndi machitidwe a SCR. Sensa imapereka deta yomwe imathandiza kukonza kuchuluka kwa jekeseni wa urea malinga ndi kuchuluka kwa injini yamakono. Deta iyi ndiyofunikira kuti muzindikire kutulutsa kwamtundu wa urea ndi injini ya urea kuti muthandize dalaivala kudzaza AdBlue munthawi yake, "anatero Kallus Howe, mkulu wa masensa ndi ma powertrains ku Continental. Pansi pa mlingo watsopano wa Euro 6 e emissions standard, magalimoto a dizilo ayenera kukhala ndi chosinthira chothandizira cha SCR chojambulidwa ndi urea, ndipo kuphatikiza kwa sensa yatsopano ya Continental mu dongosolo kumawonjezera chidaliro cha oyendetsa pamachitidwe oyendetsa galimoto.
Chojambulira chatsopano chimagwiritsa ntchito ma supersonic kuyesa kuyerekezera kwa urea m'madzi ndi kuchuluka kwa mafuta mu thanki. Pachifukwachi, chojambulira cha urea chitha kuphatikizidwa ngakhale mosungira kapena mu pump pump.
Kuchuluka kwa yankho jekeseni kuyenera kuwerengedwa kutengera momwe injini ilili pompopompo. Kuti muwerenge kuchuluka kwa jakisoni, urea weniweni wa AdBlue solution (mtundu wake) uyenera kudziwika. Komanso yankho la urea siliyenera kukhala lozizira kwambiri. Chifukwa chake, kuti muwonetsetse kukonzekera kwa dongosololi, ndikofunikira kuwongolera kutentha kwa thanki ya urea, ngati kuli koyenera kuyambitsa makina otenthetsera. Pomaliza, payenera kukhala urea yokwanira mu thanki popeza sensa ya supersonic imalola mulingo wamadzi mu thanki kuyezedwa kuchokera kunja. Ichi sichinthu chofunikira chokha chotsutsana ndi chisanu, komanso chimalepheretsa kutupa kwa zinthu zamagetsi kapena zamagetsi.
Selo loyesera la sensa ili ndi zinthu ziwiri za piezoceramic zomwe zimatulutsa ndikulandila mawonekedwe apamwamba. Mulingo ndi mtundu wa yankho utha kuwerengedwa poyesa nthawi yoyenda yamafunde am'mwamba pamwamba pa madzi ndi kuthamanga kwake kopingasa. Chojambuliracho chimagwiritsa ntchito kuthekera kwa mafunde opambana kuti aziyenda mwachangu mu yankho lokhala ndi ma urea ambiri.
Pofuna kukonza muyeso ngakhale pamene galimoto ili pamalo opendekera, muyeso wachiwiri waperekedwa kuti upereke chizindikiro chodalirika pamapiri otsetsereka.
2020-08-30
