Njengabaningi benu, lapho ngiseyingane ngangiphephezela imali eningi ngomagazini bezimoto kunasezitikhani (nami ngangingumuntu onamatshwala…). Yayingekho i-inthanethi ngakho-ke, i-Autohoje, i-Turbo ne-Co. zapheqululwa ngokuphelele izinsuku zilandelana.
Ngolwazi oluncane olutholakala ngaleso sikhathi (siyabonga i-inthanethi!) ukufunda kuvame ukunwetshwa kumininingwane yeshidi lobuchwepheshe. Futhi noma nini lapho ngibona injini displacement, kwakukhona umbuzo owafika kimi: "kungani isihogo ukususwa injini akuyona inombolo eyindilinga?"
Yebo Ngiyazi. Amazinga ami “e-nerdism” ngiseyingane ayephezulu kakhulu. Lokhu ngikusho ngokuziqhenya, ngiyavuma.
Ngenhlanhla, ukuba ukuphela kwengane ebaleni lokudlala enamamagazini ezimoto kungenze ngathola ukuduma okuphawulekayo phakathi kwabafundi abakhulu bebanga lesi-4 - kumuntu owayengakwazi ukukhahlela ibhola, ngikholwa, ngangidume kakhulu ebaleni lokudlala. Futhi lokho kwangisindisa iziqephu ezimbalwa zokushaywa - manje sekuthiwa ubuxhwanguxhwangu, akunjalo? Phambili...
Kukhona incazelo ngakho konke. Ngisho neqiniso lokuthi ukususwa okusebenzayo kwezinjini akuyona inombolo eqondile. Isibonelo, injini engu-2.0 l ayiwona ncamashi u-2000 cm³, ino-1996 cm³ noma 1999 cm³. Ngendlela efanayo injini 1.6 litre akanayo 1600 cm³, kodwa 1593 cm³ noma 1620 cm³.
Bhalisela iphephandaba lethu
Ake siye encazelweni?
Njengoba wazi, i-displacement iveza isamba sevolumu yangaphakathi yawo wonke amasilinda enjini. Sithola leli nani ngokuphindaphinda indawo engaphezulu yesilinda ngokushaywa okuphelele kwepiston. Ngemva kokubala leli nani, vele uphindaphinde leli nani ngenani eliphelele lamasilinda.
Ukubuyela esikoleni (futhi…), ngokuqinisekile uyakhumbula ukuthi ifomula yokuthola indawo yesiyingi isebenzisa inani lika-Pi (Π) - okungaguquki kwezibalo okunikeze isintu okuningi okufanele sikwenze futhi engingeke ngikwenze. khuluma ngoba iWikipedia isingenzele yona.
Ngaphezu kwalokhu kubala kusetshenziswa inombolo engenangqondo, ubunjiniyela bemishini busebenza nezilinganiso zamamilimitha ekwakhiweni kwezingxenye zenjini ezahlukahlukene. Ngakho-ke, amanani abaliwe awavamile izinombolo eziyindilinga.
Ake siye ecaleni elingokoqobo? Kulesi sibonelo sizosebenzisa injini engu-1.6 litre eyi-four-cylinder ene-piston stroke engu-79.5 mm kanti ububanzi besilinda bungu-80.5 mm. I-equation izobukeka kanjena:
Ukufuduka = 4 x (40.25² x 3.1416 x 79.5) | Umphumela : 1 618 489 mm³ | Ukuguqulwa ku-cm³ = 1,618 cm³
Njengoba usubonile, kunzima ukuqhamuka nenombolo eyisiyingi. Injini “yethu” engu-1.6 litre ingu-1618 cm³ phela. Futhi ngokukhathazeka okuningi onjiniyela abanakho ekuthuthukisweni kwenjini, ukushaya inombolo eyindilinga ekususweni akuyona enye yazo.
Kungakho ukususwa kwenjini akukaze kube inombolo eqondile (ngaphandle kwenhlanhla). Futhi yingakho ngingakaze ngithande izibalo…