Vizalia vya kuwasha injini - plagi ya cheche: Jinsi ya kuitunza na kuitunza?

Isipokuwa kwa magari ya dizeli ambayo hayana spark plugs, magari yote ya petroli, bila kujali yamedungwa mafuta au la, yana spark plugs. Kwa nini hii?

Injini za petroli huvuta mchanganyiko unaoweza kuwaka. The spontaneous ignition point of gasoline is relatively high, so a spark plug is needed for ignition and combustion.

Kwa upande mwingine, injini za dizeli huvuta hewa ndani ya silinda. Mwishoni mwa kiharusi cha compression, joto katika silinda hufikia 500 - 800 ° C. At this time, the fuel injector sprays diesel at high pressure in a misty form into the combustion chamber, where it mixes violently with hot air and evaporates to form a combustible mixture.

To achieve high temperature at the end of compression, diesel engines have a much larger compression ratio, generally twice that of gasoline engines. Ili kuhakikisha kuegemea kwa uwiano wa juu wa ukandamizaji, injini za dizeli ni nzito kuliko injini za petroli.

Kwanza kabisa, hebu ruhusu Cool Car Worry-Free ikupeleke ili uelewe ni sifa na vipengele vipi vya plagi ya cheche?

Mfano wa plugs za cheche za ndani zinajumuisha sehemu tatu za nambari au barua.