Jekiseni remafuta rinoshanda sei?
Zviri mukati
Kana zvasvika pakuita kweinjini, pane zvinhu zvishoma zvakakosha kupfuura kuendesa mafuta. Mhepo yese yaunokwanisa kumanikidza mumasilinda haiite chero chinhu pasina huwandu hwakakodzera hwehuni hwekupisa. Sezvo injini dzakagadzirwa mukati mezana ramakore rechimakumi maviri, kwakasvika nguva iyo carburetor yakave iyo isina kusimba chinongedzo mukutapurirana maererano nekubudirira uye kuvimbika. Jekiseni remafuta kubva zvino rave chinhu chakajairika mumotokari nyowani yega yega.
Iwo majekiseni emafuta atomize gasi, achipa zvakanyanya kuenzana uye kunoenderana kupisa mukamuri yekupisa. Kusiyana ne carburetors, iyo inovimba nevhacuum yakagadzirwa nejini kuendesa mafuta kumasilinda, masisitimu ejekiseni emafuta anonyatso kuburitsa huwandu hwemafuta. Mota dzemazuvano dzinoshandisa majekiseni emagetsi emafuta anodzorwa neECU.
Kukura kwejekiseni remafuta kwaifungidzirwa sekukwira kwemukurumbira wemotokari pachadzo. Pakutanga kwezana remakore rechi20, zvakanga zvisingadaviriki kuti motokari isvike 60 mph. Pakuvamba kwezana ramakore rechi21, vanhu vakanga vachichema pamsoro pemijaho yemotokari inofamba mumigwagwa mikuru nemakiromita 60 chete paawa. Mota nhasi dzakavimbika uye dzakanangidzirwa kune kugadzikana kwevatyairi uye kuchengeteka kupfuura chero munhu angafungidzira zana ramakore rapfuura.
Chii chakatsiva jekiseni remafuta?
Mafuta ejekiseni masisitimu akapihwa sekusimudzira kune macarburetor pavakatanga kuoneka uye vakaramba vari muchikamu ichocho kusvika kuma1980 pavakazova midziyo yakajairwa pamotokari nyowani. Jekiseni remafuta rinopa huwandu hwezvakanakira pane carburetor, asi pakupedzisira mutengo wekugadzira wakauraya carburetor.
Kwenguva yakareba, macarburetor anga ari nzira iri nyore uye yakachipa yevagadziri vemotokari kuti vape mafuta kumasilinda einjini yavo. Huwandu hwekushaikwa kwemafuta muma1970s hwakamanikidza hurumende kudzora hupfumi hwemafuta emotokari. Sezvo vagadziri vaifanira kuvandudza magadzirirwo ecarburetor anoshanda uye kugadzira zvikamu zvakaomarara, mutengo wekugadzira mota dzine carbureted wakakwira zvekuti jekiseni remafuta rakava mhinduro inodhura.
Kune vatengi, iyi yaive nhau huru. Motokari dzakaiswa mafuta dzinotyaira zvakanyanya uye dzinoda kugadziridzwa uye kugadziriswa zvishoma. Emissions zvakare iri nyore kudzora uye hupfumi hwemafuta hunowedzerwa nekunyatso kuendesa mafuta. Kune akawanda akasiyana majekiseni emajekiseni emafuta, asi ese anogona kupatsanurwa muzvikamu zviviri: jekiseni remafuta emuchina uye jekiseni remafuta emagetsi.
Magetsi jekiseni jekiseni (EFI)
Jekiseni remagetsi remafuta rinobvumira kunyatso kudzora huwandu hwemafuta akaiswa mumasilinda. Zvinotevera nzira iri nyore:
Mafuta anobuda mutangi remafuta achipfuura pombi yemafuta. Iyo inopfuura nemumitsetse yemafuta kune injini.
Slot machine mafuta ekumanikidza kutonga inoderedza kuyerera kwemafuta uye inopfuudza chete huwandu hwakaverengerwa kune majekiseni.
Iyo mafuta anomanikidza regulator anoziva kuti ingani mafuta ekupfuudza kune majekiseni, zvinoenderana nechiratidzo kubva mass airflow sensor (MAF). Iyi sensor inotarisisa kuti wakawanda sei mweya uri kupinda muinjini chero nguva. Huwandu hwemhepo inopinda muinjini, pamwe chete nechiyero chakakwana chemhepo/mafuta akaiswa nemugadziri, inopa yemagetsi kudzora unit (ECU) ruzivo rwakakwana kuverenga huwandu chaihwo hwemafuta anodiwa nejini.
Iwo majekiseni emafuta pachawo anovhurika kuti arege gasi reatomu rakananga mukamuri rinopisa kana kupinda mukati memuviri unopisa.
Mechanical mafuta jekiseni
Mechanical mafuta jekiseni akagadzirwa pamberi peEFI uye akagadzira nzira yekuvandudzwa kweEFI tekinoroji. Musiyano mukuru uripo pakati peaya maviri masisitimu ndewekuti majekiseni ehutsi majekiseni anoshandisa michina michina kuburitsa huwandu chaihwo hwemafuta muinjini. Aya masisitimu anofanirwa kurongedzerwa kuita kwakaringana, senge carburetor, asi zvakare kuendesa mafuta kuburikidza nemajekiseni.
Pamusoro pekuve akanyatsojeka, masisitimu aya haana kusiyana zvakanyanya kubva kune avo ane carbureted. Zvisinei, aibatsira zvikuru injini dzendege. Carburettor haishande zvakanaka kurwisa giravhiti. Kuti utsungirire g-masimba anogadzirwa nendege, jekiseni remafuta rakagadzirwa. Pasina jekiseni remafuta, kushaikwa kwemafuta kwaizokonzera kuti injini dzendege dzakawanda dzivhare mukati mekufamba kwakaoma.
Jekiseni remafuta remangwana
Mune ramangwana, jekiseni remafuta rinowedzera uye rakanyatsojeka uye rinopa zvakanyanya kushanda nesimba uye kuchengetedzeka. Gore negore injini dzine simba rakawanda uye dzinobudisa tsvina shoma pabhiza.
