Dizilo Injector Mafuta 0445110502 Bosch kwa Uaz Hunter/Patriot 2.0CD 08

Kusanthula kwa Transient states kwa majekeseni a injini ya CI pogwiritsa ntchito njira zowunikira

Ndemanga.

Cholinga chachikulu cha kafukufuku chinali kutanthauzira kuchedwa kwenikweni kwa jekeseni motsutsana ndi nthawi ya
chizindikiro chowongolera magetsi cha piezoelectric ndi electromagnetic dizilo jekeseni. Wachiwiri
Cholinga cha ntchitoyi chinali kuwunika mphamvu ya ma jakisoni wamba pa izi
kuchedwa. Kusanthula kunayang'ana pa zochitika zowongolera zoyenera zolembedwa ndi
kugwiritsa ntchito njira yopezera deta mwachangu komanso poyerekeza ndi zomwe zidalembedwa ndipamwamba
liwiro kamera. Mayeserowa adachitidwa mu chipinda cha voliyumu chamitundu yosiyanasiyana ya jekeseni
amagwiritsidwa ntchito mu injini zoyatsira ndi jekeseni mwachindunji wa mafuta a dizilo. Mayeso anachitidwa pansi
Zosintha zosiyanasiyana: kuthamanga kwamafuta osiyanasiyana, kupanikizika kwa mpweya komanso nthawi ya jakisoni.
1. Mawu Oyamba
Kuthamanga kwambiri jekeseni wamafuta amadzimadzi ozindikira ndi njanji wamba kumafuna kulondola kwambiri mumafuta
kuchuluka kuperekedwa mu chipinda choyaka ndi jekeseni. Panopa pali mitundu iwiri ikuluikulu ya jekeseni
Zomwe zimagwiritsidwa ntchito kwambiri pakuyatsa ndi injini yoyatsira moto: ma elekitiroma ndi
piezoelectric. Ngakhale kupanikizika kwamafuta m'makina a jakisoni a petulo ndikotsika kwambiri
poyerekeza ndi kachitidwe dizilo mafuta, koma jekeseni nthawi kutsegula pafupifupi ofanana mitundu yonse ya
kumanga. Izi zimapangitsa kuti zofunikira zikhale zofanana ndi ma jekeseni a CI ndi SI. Zida izi ziyenera kukhala
yodziwika ndi kuyankha kwachangu kuzizindikiro zowongolera zomwe zimatsegulira ndi kutseka.
Payri et al. [1] adafufuza kutengera kwaukadaulo wamagetsi ndi piezoelectric pa
jekeseni wa indirect-acting piezoelectric ndi solenoid injectors. Mu gawo la hydraulic
Makhalidwe adakonzedwa kuti apangidwe onsewo kenako nkufananiza wina ndi mnzake. Mu kafukufukuyu a
chizindikiro cha mtengo wamafuta kutengera njira ya Bosch idagwiritsidwa ntchito. The akwaniritsa zotsatira anasonyeza mofulumira actuation wa
piezo-injection poyerekeza ndi solenoid. Zomwe zikutanthauza ndikuti kuchedwa kwawo kwa hydraulic ndikocheperako. The
kusiyana kunali kuchulukirachulukira molingana ndi kuthamanga kwa jakisoni. Kuyang'ana kwachiwiri kuchokera
mayeso amenewo anali othamanga kwambiri kuthamanga kwa mafuta a piezo-injector poyerekeza ndi mapangidwe ena ofanana
dzenje m'mimba mwake.
Kafukufuku wofananawo adachitidwa ndi Yu et al. [2], koma pamenepo mafuta osankhidwa kuti afufuzidwe anali
mafuta a palafini ndi dizilo. Kutengera kokha pazizindikiro zowongolera komanso kusiyanasiyana kwa kuchuluka kwamafuta otuluka kuchokera ku jekeseni
nozzle, kuchedwa kwa jekeseni motsutsana ndi nthawi yotsegulira magetsi kunapezedwa. Makhalidwe a izi
magawo anali mosalekeza mosadalira jekeseni kuthamanga (panthawiyi 60 ndi 100 MPa) ndi kuchedwa
nthawi zinali motsatana 0.45 ms kwa piezo- ndi 0.55 ms kwa solenoid jekeseni. Kuonjezera apo, kuthamanga mofulumira
kuchokera ku jekeseni wa jekeseni chifukwa cha kupanikizika kwa jekeseni kunkawoneka. Mfundo imeneyi imapindulitsa kwambiri
ntchito injini kuyaka monga bwino atomization ndi evaporation mafuta. Olembawo adagwiritsa ntchito