THE Bosch sanar jiya juyin juya hali a cikin injunan diesel - sake duba labarin (maganganun Shugaban Kamfanin sun cancanci karantawa a hankali). Juyin juya hali wanda, da alama, ya dogara ne akan fasahar da ake da su, sabili da haka, mafita ce da za a iya amfani da ita nan ba da jimawa ba ga injin Diesel.
Tabbatar da ingancin wannan fasaha, cikin dare, Diesels ya dawo cikin wasa kuma ya sake kasancewa cikin matsayi don cimma burin da ake buƙata na hayaki - wasu daga cikinsu sun zo a farkon Satumba. WLTP, kun ji?
Amma ta yaya Bosch - daya daga cikin kamfanonin da ke kan gaba wajen badakalar hayaki - ya yi wannan mu'ujiza? Abin da za mu yi ƙoƙari mu gane ke nan a cikin ƴan layi na gaba.
Yadda Sabuwar Fasaha ke Aiki
Ista ya riga ya ƙare amma da alama Bosch ya samo hanyar farfado da injunan Diesel. Wannan nau'in injin yana (kuma yana…) yana cikin wuta saboda yawan hayakin NOx da suke fitarwa zuwa sararin samaniya - wani abu da sabanin CO2 yana da matukar illa ga lafiyar ɗan adam.Babban matsala tare da injunan diesel bai taɓa CO2 ba, amma fitar da NOx da aka samu yayin konewa - an riga an sarrafa barbashi da kyau ta hanyar tace barbashi. Kuma shine ainihin wannan matsalar, na hayaƙin NOx, wanda Bosch yayi nasarar magancewa.
Maganin da Bosch ya ba da shawarar ya dogara ne akan tsarin sarrafa iskar gas mai inganci.
Maƙasudai masu sauƙi don cin nasara
A halin yanzu, iyakar fitar da NOx shine milligrams 168 a kowace kilomita. A cikin 2020, wannan iyaka zai zama 120 mg/km. Fasahar Bosch tana rage fitar da wadannan barbashi zuwa kawai 13 mg/km.
Babban labari game da wannan sabuwar fasahar Bosch yana da sauƙi. Ya dogara da ingantaccen sarrafa bawul ɗin EGR (Recirculation iskar Gas). Michael Krüger, shugaban sashen ci gaban fasaha na injinan dizal, yayi magana da Autocar game da "gudanar da yanayin zafin iskar gas".
Da yake magana da wannan littafin Ingilishi, Krüger ya tuna da mahimmancin zafin jiki don EGR yayi aiki tare da mafi girman inganci: " EGR kawai yana aiki cikakke lokacin da yanayin zafi ya wuce 200 ° C " . Zazzabi da ba kasafai ake kaiwa ga zirga-zirgar birane ba.
"Tare da tsarin mu muna ƙoƙarin rage duk asarar zafin jiki, sabili da haka muna kawo EGR a matsayin kusa da injin". Ta hanyar kawo EGR kusa da injin, yana kiyaye zafin jiki ko da lokacin tuki a cikin birni, yana cin gajiyar zafin da ke fitowa daga injin. Tsarin Bosch kuma cikin hikima yana sarrafa iskar gas ta yadda iskar zafi kawai ke wucewa ta cikin EGR.
Hakan zai sa a rika sake zagayawa da iskar gas a dakin da ake konewa, ta yadda za a iya kona barbashi na NOx, musamman a cikin tukin birane, wanda ya fi bukatar ba kawai ta fuskar amfani ba, har ma wajen kula da yanayin zafin injin. .
Yaushe ya shiga kasuwa?
Kamar yadda wannan bayani ya dogara ne akan fasahar Bosch Diesel da aka riga aka yi amfani da shi wajen kera motoci, ba tare da buƙatar ƙarin kayan aikin kayan aiki ba, kamfanin ya yi imanin cewa wannan tsarin ya kamata ya ga hasken rana ba da daɗewa ba.