Majekiseni emafuta zvinhu zvidiki zvemagetsi izvo zvinoshandiswa kuendesa mafuta kuburikidza nepfapfaidzo yakananga mumhata yakawanda pamberi pevharuvhu yekupinza muinjini yedhiziri. Diesel mafuta majekiseni akaoma kunzwisisa; jekiseni rine micron sefa yakakwira padivi rekupinza repamusoro rinoenderana netumaburi tudiki tudiki pazasi kuti atomize emafuta edhiziri. Mafuta edhiziri anoshanda senzvimbo yekuzora yenhengo dzemukati dzejekiseni. Chinhu chikuru chekukundikana kwemajekiseni imvura mumafuta. Kana mvura iri mumafuta ichibvisa zvimiro zvekuzora zvikamu zvemukati zvinopera nekukurumidza uye jekiseni rese rinogona kutadza nekukurumidza.
Majekiseni chinhu chakakosha zvikuru cheinjini. Injector valve inovhura uye inovhara panguva imwechete rpm sejini injini. Typical RPM for diesel engines in North America is around 1800. Izvi zvakaenzana nekanenge ka140,000 paawa! Pamusoro pemvura mumafuta, majekiseni anoiswa pasi pekabhoni uye tsvina zvimedu zvinounzwa muyuniti kuburikidza nechakaipa chekuchenesa mweya chinhu. Rudzi rwehuturu, giredhi uye zvinowedzerwa zvinoshandiswa zvakare zvine mhedzisiro yakakosha pakurarama kwehurefu hwejekiseni. Iyo ECM (Engine Control Module) inodzora majekiseni emafuta mumajini mazhinji edhiziri. Majekiseni edhiziri anogara aine simba kana kiyi yakabatidzwa zvisinei kana injini yakashandurwa. Iyo ECM inomisa jekiseni, kupedzisa dunhu uye kuita kuti jekiseni rizaruke. Iyo ECM mushure mekugamuchira ruzivo kubva kune akasiyana siyana ekudzora masensa inotarisa kureba kwenguva iyo majekiseni anofanirwa kuisirwa pasi kuti ibaye huwandu chaihwo hwehuturu hunopiwa kudiwa kwebhiza kubva muinjini.
Maitiro emajekiseni edhiziri kuvhura, kuvhara uye kugovera huwandu chaihwo hwehuturu hunoitika mumamilliseconds. Injector cycle kupfura paavhareji inopedzwa mu1.5 kusvika 5 milliseconds. Diesel mafuta majekiseni anouya akasiyana maumbirwo uye saizi zvichienderana nekugadzirwa kweinjini uye modhi pamwe nekudiwa kwesimba. Majekiseni emotokari akati diki pane anorema-mashandisirwo edhiziri uye anoyerwa mu cubic inches. Kune marudzi maviri edhiziri emafuta majekiseni: yekutanga inonzi throttle body injection apo 1-2 majekiseni ari mu throttle body pachayo muinjini yedhiziri uye anopa huwandu hwemamita hwehute hwehuputi muhuwandu hwekudya. Iyi yekuendesa sisitimu inochaja yekutora uye vharafu yekutora inokwevera mafuta mucylinder yejini. Yechipiri yekuendesa sisitimu, inozivikanwa seyemunhu port type mafuta injector, inyowani uye inowedzera kuita mafuta. Port mhando yejekiseni inoshanda zvakanyanya kupfuura carburetor sezvo ichigadzirisa kune density yemhepo uye urefu uye haina kutsamira pane manifold vacuum.
Nekusashanda kwejekiseni rekupuruzira kunouya apo masilinda ari padyo nemajekiseni ane musanganiswa uri nani pane iwo ari kure. Nemhando yejekiseni yechiteshi ichi chikanganiso chinobviswa nekubaya huwandu hwakafanana hwemafuta kune silinda yega yega muinjini.
Zvidimbu zveInjector
Injector imwe neimwe yemafuta yakasiyana zvishoma asi iyo yose ine zvikamu zvikuru gumi neshanu zvinosanganisira sefa, chindori chekutungamira, chitubu chepakati, chitubu chechigaro, chigaro, chidimbu chedanda, kumira, solenoid coil, solenoid body, core ring, core, spray tip housing, mutungamiriri uye spray tip. Kuyerera kwemafuta kunodzorwa neECM nekusimudza bhora kubva pachigaro chayo. Izvi zvinobvumira mafuta kuyerera nepanzvimbo yechigaro uye yobva yabuda kuburikidza neyakagadzika director ndiro ine maburi akati wandei. Iyo director plate inoshanda kutungamira iyo mafuta spray pattern. Mhando yejekiseni iyi ine 10 kusvika 15℃angle spray pattern. Iyo mafuta atomization yerudzi urwu rweinjector yakafanana neiyo disc type injector. Diski uye bhora mhando majekiseni nemagadzirirwo uye asingatani kuvharika.
