Uyini umehluko phakathi kwe-detonation kanye ne-autoignition?

Abaningi bethu kwesinye isikhathi bayaphambanisa ukungqongqoza nomphumela wokuzibhebhezela / wokuzenzekelayo, okuvame ukwenzeka kubantu abane-injini yokushisa, okungukuthi injini kaphethiloli.

Kuyini ukuzishisa?

Okokuqala, kufanele wazi ukuthi ukushisa okuzenzekelayo kuqukethe uphethiloli ovutha ngokuzenzekelayo. Eqinisweni, noma ngabe sikhuluma ngophethiloli ozibasela wodwa, lokhu akulona iqiniso ...

Eqinisweni, sikhuluma ngokuzishisa wena, lapho ingcindezi iba phezulu kakhulu kangangokuba ukushisa okwenziwe kudala ukuthi ingxube yephethiloli yomoya ibase. Ngoba udinga ukwazi ukuthi "ukucindezela" igesi kukhiqiza ukushisa, futhi lokho kushisa kungakhanyisa ingxube uma ikhula ngokwanele.

Injini yokuthungela ezenzakalelayo iyinjini ethungela uphethiloli wayo ngaphandle kokusebenzisa i-spark plug (ebangela inhlansi), kodwa kuphela ngenxa yokucindezela ku-cylinder, okushisa igesi (umoya othathayo, okungukuthi u-80% we-nitrogen no-20 % umoya-mpilo). Ngakho-ke, lokhu kuyisimiso sezinjini ze-diesel ezingasebenzisi ama-spark plugs), kodwa futhi nokukhathazeka mayelana nokusheshisa kwenjini.

Umehluko phakathi kokuzishaya wena kanye nokuqhumisa

Manje yini umehluko phakathi kokuchofoza nokushisa okuzenzekelayo (noma ukushisa okuzenzekelayo, kuyinto efanayo)? Yebo, ekugcineni kosuku, zihlala zifana futhi zehlukile, futhi amagama asetshenzisiwe ukuchaza lezi zinto awangishayi njengomdlalo omuhle.

Ngempela, kuzo zombili lezi zimo sikhuluma ngokushisa okuzenzekelayo ... Okugcina kudide. Umehluko kuphela usesikhathini nokuthi kwenzeka kanjani ukushisa okuzenzakalelayo, yilokho kuphela. Kepha kuzimo zombili, lokhu kukhathaza ukushisa okuzenzekelayo! Ngakho-ke ubona engikubona njengokukhathazeka maqondana nokuxoshwa?

Ukuzishisa / ukushisa okuzenzekelayo

Sivame ukukhuluma ngokushisa okuzenzekelayo, lapho ingxube kaphethiloli / umoya izishisa yodwa ngesikhathi sokuminyaniswa: okungukuthi, lapho iphiston iphakama, lapho onke ama-valve evaliwe (uma engavulekile). Ukucindezela kungenzeka futhi ungacabanga). Ngokuyisisekelo, sizoba nomlilo ngaphambi kokuthi sifune ukukubangela, okungukuthi, lapho i-spark plug ivusa inhlansi.

Kepha ngokuyisisekelo, igama elithi ukuvutha okuzenzakalelayo limane nje libhekise ekushiseni okuzenzakalelayo ngokucindezela okwandayo, awukho umongo othile lapha njengoba ngibonisile ekuqaleni.

Ukuzithiba kulula: i-piston iyakhuphuka futhi icindezele umoya. Ukucindezela umoya kuyashisa futhi kubeka konke

Chofoza umsindo

Ngakho-ke, umsindo wokuchofoza ukuzithungela kwengxube, kodwa ngenxa yomphumela ohlukile, nakuba uhlale uhlotshaniswa nokucindezela. Ngakho-ke, inkinga lapha akukhona ngesikhathi sokucindezelwa, kodwa ngesikhathi sokushiswa kwe-spark plug. Ngakho-ke uzitshela ukuthi akumele kube nenkinga ngoba akuzange kusheshe kusha (ngaphambi komlilo). Yebo yebo, igagasi lokushaqeka (noma kunalokho igagasi lokucindezela) elibangelwa ukusha phakathi nendawo yesilinda (lapho kunepulaki lenhlansi futhi, ikakhulukazi, ukuqala kokuqhuma okuvela enhlansini) "lizokwenza i-waltz kakhulu" uphethiloli (ongakabi naso isikhathi sokusha) ubheke ezindongeni zesilinda. Lo mafutha abe esecindezelwa futhi acindezelwe kanzima ngokumelene nokugcina, ngakho-ke ekugcineni avutha njengoba lokhu kucindezela kubangela ukushisa ngokwemvelo (ngiphinda, ukucindezela = ukushisa ku-physics).

Ngakho-ke, sizoba "nokuqhuma" (akumele nanini sikhulume ngokuqhuma uma sifuna ukucacisa ngokwamagama, kepha hheyi ...) maphakathi ne-spark plug (leyo obekufanele inike amandla inhlansi ipulaki). injini yokushisa), kodwa futhi, ngeshwa, ukuqhuma okuncane okuzimele okutholakala ezindongeni zesilinda nepiston ...

Lokhu kuqhuma okuncane kwesinambuzane bese kuhlasela insimbi bese injini ibola kancane ngaphakathi. Ngakho-ke, ngokuhamba kwesikhathi, imingcele ivela kumasilinda nama-piston, ngakho-ke, ukucindezela futhi, ngakho-ke, amandla alahleka ngokunengqondo ...

Ukuchofoza futhi kuhlobene nokuzithungela, ngaphandle kokuthi i-trigger iyinto ehlukile. Esikhundleni sokuthi i-piston "ichoboze" umoya, igagasi lokucindezela eliphoqa enye ingxube yomoya/yamafutha ezindongeni zepiston nesilinda. Ngifanekise ukuqhuma okuncane lapha, kodwa empeleni kuningi okwenzeka emagumbini amane ekamelo (kubuye kuncike endaweni yomjovo).

Isifinyezo Sokwehluka?

Ukube besizolula ngangokunokwenzeka, besingasho ukuthi ukuvutha okuzenzekelayo kuqukethe ukushisa kwasekuqaleni (esigabeni sokuminyaniswa), ngenkathi ukuqhuma kuqukethe ukucekela emuva kwesikhathi, kubangele "ukuqhuma" okuncane ngakwesokunxele nakwisilinda. ngemuva kokushisa okuphoqelelwe (i-spark plug). Lesi sakamuva siyingozi kakhulu, njengoba kubhubhisa izingxenye zangaphakathi zensimbi zenjini.

Kungani kungekho kuduma enjini kadizili?

Lesi simo ngeke senzeke ngoba ukuthungela akulawulwa yi-spark plug, yize abaningi besho ngokushaywa kukaphethiloli oketshezi. Ukushisa, okubangelwa ingcindezi yenhlanganisela, ekhanyisa yonke into, ngakho-ke eyokugcina iyunifomu kulo lonke isilinda. Uma i-homogeneous, khona-ke konke kuzokheleka ngokungazelelwe, hhayi ezindaweni ezincane, njengakwisimo se-spark plug, esibangela ukushisa endaweni ethile okushisa kakhulu kunamanye (ngophethiloli kadizili, lonke igumbi lishisa ngokungazelelwe, ngakho-ke ukushisa okufanayo kufana nokubambezeleka kokushisa komlilo) ...

Ngakho-ke, lolu hlobo lomsindo enjinini kadizili kufanele lubheke imbangela yayo kwenye indawo: ama-valve, ama-injector (pre-injection noma umjovo ngesikhathi esingalungile), ukubekwa uphawu kwekamelo, njll.

Yonke imibono nokuphendula

wokugcina amazwana athunyelwe:

UTraore Namori Abdul Aziz (Usuku: 2020, 05:17:17)

Injini yegesi

Il J. 3 ukusabela (kula) mazwana:

(Okuthunyelwe kwakho kuzobonakala ngaphansi kwamazwana ngemuva kokuqinisekiswa)

Bhala umbono

Imoto kagesi yama-supercars, ungayikholwa?