Diesel Injector Fuel Injector 0445120188 Bosch for Dodge RAM 2500 / RAM 3500 Pickup Truck 6.7L High-Output Cummins

Kugadzira Modhi yeFuel Injection process Efficiency Analysis yeInjector yeDiesel Engines(chikamu 5)

Nekuda kwekuparara, iyo jeti yemafuta inoshandurwa kuita mafuta ekupfapfaidza ine imwe yekudonha saizi yekugovera.Uyezve, dhayamita yekudonha inguva isina kurongeka inoenderera, kureva kuti inogona kutora chero kukosha mukati menguva yekutsanangurwa kwayo.Panyaya iyi, mafuta ekupfapfaidza anofanirwa kutariswa kwete chete sekuunganidza kana seti yemadonhwe, asi seyakagadzika aggregate yemadonhwe ehukuru hwakasiyana.

Zvinoenderana nemirairo yekugovera inotariswa, inokwana ma paramita maviri anodiwa kuti udzidze kudonha saizi spectrum yeatomu yehutsi: avhareji yekudonha dhayamita uye jet kugovera maitiro (kupararira, renji).

A Sauter zvinoreva donhwe dhayamita nzira yakasarudzwa.Inomiririra chiyero chehuwandu hwehuwandu hwemadonhwe ose kusvika kune yavo yose.

Mafuta atomization inoenderana nenhamba yeWeber, inova huwandu husina dimension hunotanga hukama pakati pezvitatu zvinopesvedzera kunaka kweatomization yemvura uye inowanikwa kubva mukutaura.

(2) :DP -Pressure drop, 2 H/ m pakati pemuromo wemuromo nepakati pekuti jekiseni rinoitwa cd -nozzle orifice dhayamita, m;s - kushushikana kwemafuta, N/m Imwe yemitemo yakakosha yecapillary phenomena inopesvedzera kunaka kweatomization mutemo weLaplace.

A dimensionless criterion inobatanidza mativi mana anokonzera kunaka kwemafuta atomization (3) rT - mafuta density kg/m3 pakati penozzle orifice nepakati panoitwa jekiseni;cd - nozzle orifice dhayamita, m;σ - tension yemafuta, N/m, mT - mafuta anochinja viscosity, Ns/m2

Mhedzisiro yakakosha paatomization yemafuta inokonzerwa nechiyero icho mvura inoyerera ichibuda mumuromo wenozzle.Muyero wekuyerera kunze uko kuparara kunotanga pakarepo pamuromo wemuromo zvinoenderana nehuwandu hwezvinhu (4):