Tsvagiridzo pamusoro pekurapa utsi hweinjini yedhiziri mushure mekurapa inotenderera pakubvisa NOX nePM. Uye matanho akawanda ekuchenesa akabuda. Tekinoroji yekuchenesa utsi hwedhiziri inosanganisira kudzokororwa kwemhepo inobuda (EGR), oxidation catalytic converter (DOC), diesel particulate filter (DPF), selective catalytic reduction system (SCR), uye ammonia escape trap (ASC).
1.EGR (Kutenderera kweGasi Rekuburitsa Hutsi)Sisitimu yekudzokorora kutenderera kwegasi remhepo, iyo inoparadzanisa chikamu chegasi remhepo kubva kuinjini yekupisa uye inoriisa parutivi rwekupinza kuti riwedzere kupiswa, inogona kuita kuti pave nemigumisiro yekudzvinyirira kugadzirwa kwenitrogen oxides uye kuvandudza kushandiswa kwemafuta.
2.DOC (Diesel Oxidation Catalyst)tekinoroji yedhiziri yekukonzera kupiswa kwemafuta inoshandisa macatalyst ane simbi dzinokosha kuti iwedzere kuoxidation yeHC, CO, NO, uye mitengo isingachinji pazvimedu zviri muutsi hweinjini, nokudaro ichideredza huwandu hweHC, CO, uye PM.
3.DPF (Firita yeDiesel Particulate)rudzi rwefirita yakaiswa mu exhaust system yeinjini dzedhiziri, inonyanya kushandiswa kubata zvinhu zvidiki (PM) mu exhaust.
4.SCR (Kuderedza Kusarudzwa Kwezvinhu Zvinobatsira)Sisitimu iyi inyanzvi inoshandisa urea kuderedza nitrogen oxides (magasi ane chepfu) mugasi rinobuda mumhepo kuita nitrogen nemvura (izvo zvisingakuvadzi).
5.ASC (Ammonia Slip Catalyst)amoniya escape catalyst, mamwe marori eNational VI mushure mekurapwa achava neASC system, iyo yakaiswa kumashure kweSCR uye inoderedza kubuda kweammonia (NH3) muutsi hwemashure eSCR kuburikidza necatalytic oxidation.
6.POCimhando ye "particle catalytic oxidizer". Nheyo inoshanda ndeyekutora "particle matter" woipisa kuburikidza nekupisa kwakanyanya kwegasi rinobuda (250 ℃ -500 ℃) kuti uzadzise chinangwa chekuderedza "particle matter". POC inowanzo shandiswa pamarori madiki. Pamusoro pezvo, POC inogona kugadzirwazve, nepo DPF ichida kupindira nemaoko.
Nguva yekutumira: Chikunguru-31-2024