Ob chav scroll turbocharger yog dab tsi? [kev tswj hwm]

Cov qauv tsim ntawm lub tshuab supercharger sib txawv nyob ntawm qhov xav tau ntawm cov neeg tsim qauv. Ib qho ntawm cov kev xav tau txawv txawv yog qhov xav tau kom tau txais lub zog siab ntawm qhov qis tshaj plaws tau ceev, thaum tsis muab tso rau ntawm qhov tseem ceeb ntawm kev kub ceev, thiab qhov no yog nyob rau hauv lub cav roj av. Nws yuav zoo li tias lub cav roj av yuav tsis muaj lub qhov muaj zog zoo li lub cav diesel, tab sis nws hloov tawm tias nws tuaj yeem ua tau. Qhov no yog txhua yam ua tsaug rau ob chav scroll system.

Koj tuaj yeem siv ntau txoj hauv kev ntxiv, incl. sib txawv geometry los yog twin-turbo thiab bi-turbo systems, tab sis nyob rau hauv txhua rooj plaub muaj ib qho teeb meem uas tso pa tawm ntawm ib lub tog raj kheej tsis nkag mus rau lub turbine rotor ib txhij thiab sib npaug, tab sis nyob rau hauv ib txoj kev pulsating thiab theej erratic. Yog li ntawd, lawv cuam tshuam rau ib leeg ntawm kev nkag mus rau lub tsev turbine thiab tsis siv lawv lub peev xwm tag nrho.

Yog li no twin-scroll turbocharged tov uas cais cov pa tawm manifold rau hauv ob txoj kev (qhia hauv liab), ib qho ua haujlwm, piv txwv li, hauv 4-lub tog raj kheej cav, lub tog raj kheej sab nraud, thiab lwm yam, lub tog raj kheej sab hauv. Qhov no tsis txhob cuam tshuam nrog kev ntws mus rau hauv lub turbine casing. Kuj tseem muaj ob txoj hauv kev ntawm no, tab sis muaj ib lub chamber nyob rau hauv pem hauv ntej ntawm lub rotor (qhia hauv xiav). Los ntawm kev xaiv qhov ntev thiab muaj peev xwm ntawm cov chaw nres nkoj nkag, koj tuaj yeem siv cov xwm txheej nthwv dej uas cuam tshuam nrog lub voj voog ntawm lub zog ntawm lub cav, thiab siv lub zog ntawm cov pa tso pa tawm. Ua tsaug rau qhov kev faib tawm no nyob rau hauv lub turbine vaj tse, tsis tsim nyog perturbations tsis tsim nyob rau hauv qis speeds, thiab me me turbocharger teb sai heev rau nias lub roj pedal.

Hauv cov qauv tsim, tsis tas yuav muaj qhov sib txawv ntawm cov turbine geometry.uas tsis tshua muaj siv nyob rau hauv roj av cav. Thiab tseem lub ntsiab feature ntawm twin-scroll turbocharged cav yog ceev heev cov tshuaj tiv thaiv rau qhov sib ntxiv ntawm cov pa. Nws muaj peev xwm txawm yuav unmistakably hais tias hom turbocharger zoo tshaj plaws tshem tawm qhov tshwm sim ntawm turbolag.

Ib tug ntawm cov pioneers nyob rau hauv kev siv ntawm twin-scroll turbo system yog BMW. uas siv lub sij hawm Twin Power Turbo rau nws cov units. Nws yog ib qho tsim nyog yuav tsum tau sau tseg ntawm no tias tsis muaj dab tsi tiv thaiv kev siv twin-scroll turbochargers nyob rau hauv lub taub hau ntxaib xws li V8s. Lwm qhov piv txwv yog Ford, uas tau siv lub tshuab twin-scroll turbocharger ntawm kev ntaus pob ncaws pob Focus RS. Cov neeg uas tau tsav lub tsheb no paub sai npaum li cas nws lub cav reacts rau qhov sib ntxiv ntawm cov roj thiab nws muaj zog npaum li cas nyob rau hauv txhua qhov rev. Nws txaus los hais tias qhov no 2,3-liter petrol unit tsim 440 Nm nyob rau hauv thaj tsam ntawm 2000 txog 4500 rpm. Lwm lub tuam txhab uas tau siv ob-scroll turbocharger yog Lexus. Hauv NX, nws yog 2-liter petrol engine.