Umbhobho omtsha we-Fuel Injector Dsla143p1535 0433175456 OE 2854608 504091505 ye-Fuel Injector 0445120057

1. Indawo yobushushu be-fuel kwisithuba esiphakathi kweendawo zokudityaniswa kwevalve yenaliti:

Xa ivalve yenaliti ibuyelana, amandla ekinetic aphulukene ne-shear flow friction phakathi kwesibini sevalve yenaliti kunye ne-gap fuel iguqulwa ibe ngamandla obushushu, kunye ne-gap.

Ubushushu befilimu yeoli bukhuphuka ngokuthe ngcembe, kwaye i-fuel iya kwanda xa iqondo lokushisa likhuphuka, ukuze kubekho uxinzelelo olongezelelweyo kwifilimu yeoli kwi-gap.

intsimi, umthamo womthwalo wefilimu yeoli uyanda, le nto yimpembelelo ye-thermal wedge. Xa i-shear flow flow ingaqwalaselwa, izinga lokuhamba kwamafutha liyancitshiswa ngenxa yokuchasana kwe-viscous eludongeni. Xa ivalve yenaliti imile okanye ihamba ngesantya esiphantsi, ilahleko yoxinzelelo lwamafutha iguqulwa ibe ngamandla obushushu. Ngexesha elifutshane, ukushisa kunzima ukutshintshela eludongeni oluqinileyo, ngoko ke lula njengenkqubo ye-adiabatic.

2. Ukuvuza kumsantsa weringi ye-coupler yevalve yenaliti:

Ukudibanisa i-valve yenaliti itywinwe ngefilimu yeoli kwi-gap, kwaye ubukhulu befilimu yeoli malunga ne-2.μm. Olu hlobo lwesikhewu se-micron ring lusetyenziswa ngokubanzi kuxinzelelo oluphezulu kunye nokutywinwa kwesantya esiphezulu. Ukucheba okuqinileyo okudityanisiweyo.Ubungakanani bomsantsa wesibini sevalve yenaliti mncinci kakhulu. Ixhomekeke kwidizili ukufezekisa ukuzithambisa. Xa igeleza kwi-gap ye-micron-level, i-viscosity yeoli ye-diesel inkulu, kwaye inombolo ye-Reynolds incinci. inokubonwa njengomaleko.

3. Ukuguqulwa kweradial yokudibanisa ivalve yenaliti:

Njengoko uxinzelelo lwenkqubo yokubonelela ngamafutha lunyuka, i-groove yokugcina i-oyile kunye ne-sliding surface clearance yendibano yevalve yenaliti ixhomekeke kumthwalo omkhulu. Ibangela i-elastic deformation yokudityaniswa kwevalve yenaliti, itshintshe ubungakanani befilimu ye-radial yokuhanjiswa kwefilimu yeoli kwisithuba esiphakathi kokudityaniswa kwevalve yenaliti, kwaye ngaloo ndlela ichaphazela iimpawu zokutywina zokudityaniswa kwevalve yenaliti.