Fuel injectors bitundu bya masannyalaze bitonotono ebikozesebwa okutuusa amafuta nga biyita mu kufuuyira butereevu mu intake manifold mu maaso ga intake valve mu yingini ya dizero. Empiso z’amafuta ga dizero zizibu nnyo; empiso erina ekyuma ekisengejja micron ekinene ku ludda olw’okuyingira waggulu ekikwatagana n’ebituli ebitono eby’obunene bw’olususu wansi olw’okukola atomizing y’amafuta ga dizero. Amafuta ga dizero gakola ng’ensibuko y’okusiiga ebitundu by’omunda eby’empiso. Ekisinga okuvaako okulemererwa kw’abakuba empiso ge mazzi agali mu mafuta. Amazzi agali mu mafuta bwe gasengula eby’okusiiga ebitundu by’omunda byambala mangu era empiso okutwaliza awamu esobola okulemererwa amangu ddala.
Injectors kitundu kya yingini kikulu nnyo. Valiva ya injector eggulawo n’eggalawo ku rpm y’emu ne yingini ya dizero. RPM eya bulijjo ku yingini za dizero mu North America eri nga 1800. Kino kyenkana emirundi nga 140,000 buli ssaawa! Ng’oggyeeko amazzi agali mu mafuta, empiso zikolebwako obutundutundu bwa kaboni n’obucaafu obuyingizibwa mu yuniti nga buyita mu kintu ekibi ekiyonja empewo. Ekika ky’amafuta, grade n’ebirungo ebigattibwamu ebikozesebwa nabyo bikola kinene ku bulamu bw’ekintu ekikuba amafuta. ECM (Engine Control Module) y’efuga ebyuma ebikuba amafuta mu yingini za dizero ezisinga ez’amasannyalaze. Empiso za dizero buli kiseera zirina amaanyi ng’ekisumuluzo kikoleezeddwa si nsonga oba yingini ekyusiddwa. ECM essa ground ku injector, n’emaliriza circuit era n’ereetera nozzle ya injector okugguka. ECM oluvannyuma lw’okufuna amawulire okuva mu sensa ez’enjawulo ezifuga y’esalawo obuwanvu bw’ekiseera empiso ze zeetaaga okuteekebwa ku ttaka okusobola okufuyira amafuta amatuufu okusinziira ku maanyi g’embalaasi ageetaagibwa okuva mu yingini.
Enkola y’okukuba empiso za dizero okuggulawo, okuggalawo n’okugaba amafuta amatuufu ebaawo mu milisekondi. Injector cycle firing ku average emalirizibwa mu milliseconds 1.5 ku 5. Empiso z’amafuta ga dizero zijja mu ngeri n’obunene obw’enjawulo okusinziira ku ngeri yingini gy’ekola n’engeri gy’ekola wamu n’amaanyi ge yeetaaga. Empiso z’emmotoka ntono nnyo okusinga ezikozesebwa mu dizero ezizitowa- era zipimibwa mu kiyuubi yinsi. Waliwo ebika bibiri eby’empiso z’amafuta ga dizero: ekisooka kiyitibwa throttle body injection nga empiso 1-2 zibeera mu mubiri gwa throttle yennyini mu yingini ya dizero ne zifuyira amafuta g’enfuufu agapimiddwa mu manifold y’okuyingiza. Enkola eno ey’okutuusa amafuta mu bukulu ejjuza intake ate intake valve esika amafuta mu ssiringi ya yingini. Enkola eyokubiri ey’okutuusa amafuta emanyiddwa nga individual port type fuel injector, mpya era ekekkereza amafuta. Ekika ky’empiso y’omwalo kikola bulungi okusinga kabuleta okuva lwe kitereeza ku density y’empewo n’obugulumivu era tekisinziira ku vacuum ya manifold.
Nga throttle spray injection inefficiency ejja nga cylinders ezisinga okumpi ne injectors zirina omutabula omulungi okusinga ezo ezisinga ewala. Nga olina port type of injection ekikyamu kino kiggyibwawo nga ofuyira amafuta ge gamu ku buli silinda mu yingini.
Ebitundutundu by’Empiso
Buli fuel injector ya njawulo katono naye byonna birina ebitundu ebikulu 15 omuli filter, guide ring, core spring, seat spring, seat, pole piece, stop, solenoid coil, solenoid body, core ring, core, spray tip housing, director ne spray tip. Entambula y’amafuta efugirwa ECM ng’esitula omupiira okuva ku ntebe yaayo. Kino kisobozesa amafuta okukulukuta okuyita mu mulyango gw’entebe n’oluvannyuma okufuluma nga gayita mu fixed director plate erimu ebituli ebiwerako. Puleti ya dayirekita ekola okulungamya enkola y’okufuuyira amafuta. Ekika ky’empiso kino kirina enkola y’okufuuyira eya diguli 10 ku 15. Empiso y’amafuta ey’ekika kino efaananako n’empiso ey’ekika kya disiki. Disc ne ball type injectors okusinziira ku dizayini ate nga tezitera kuzibikira.
