ZINTHU ZWIRI
Mawu akuti kuzungulira kwa sitiroko ziwiri amatanthauza kuti injini imapanga mphamvu yamphamvu nthawi iliyonse pisitoni ikatsika.Silinda nthawi zambiri imakhala ndi madoko awiri, kapena njira, imodzi (yotchedwa doko) kuti ivomereze kusakaniza kwamafuta a mpweya, inayo yolola kuti mpweya woyaka utuluke mumlengalenga.Madokowa amaphimbidwa ndikuwululidwa ndi pisitoni pamene imayenda mmwamba ndi pansi.
Pistoni ikakwera m'mwamba, malo omwe adakhala m'munsi mwa chipika cha injini amakhala opanda kanthu.Mpweya umalowa mwachangu ndikudzaza malowo, koma usanalowe, uyenera kudutsa mu atomizer yotchedwa carburetor,
kumene imanyamula madontho amafuta.Mpweya umatsegula chitseko chachitsulo chachitsulo pamwamba pa chotsegula mu crankcase ndipo ndi mafuta amalowa mu crankcase.
Pistoni ikatsika pansi, imakankhira zonse molumikizana ndi ndodo ndi crankshaft, komanso kusakaniza kwamafuta a mpweya, ndikumakanikiza pang'ono.Panthawi ina, pisitoni imatsegula doko lolowera.Doko ili limachokera ku
crankcase ku silinda pamwamba pa pisitoni, kulola kuti mafuta ophatikizika a mpweya mu crankcase alowe mu silinda.
Tsopano tiyeni tiyang'ane kuzungulira kwamphamvu kwenikweni mu 1-2, kuyambira ndi pisitoni mu gawo lotsikitsitsa la silinda yake yokwera ndi pansi mu silinda.Kusakaniza kwamafuta a mpweya kumalowa mkati ndikuyamba kukankhira mpweya woyaka
kunja kwa doko la utsi, lomwenso lavundukulidwa.
Pistoni imayamba kusunthira mmwamba, nthawi imodzi ndikumaliza ntchito yokankhira mpweya wotenthedwa kuchokera pa doko la utsi, ndikukakamiza kusakaniza kwamafuta a mpweya mu silinda.Pamene pisitoni ifika pamwamba pa
silinda, pisitoni ikuphimba madoko awiri, ndipo kusakaniza kwamafuta a mpweya kumakanizidwa kwambiri.Panthawiyi, spark plug, yomwe imalowetsedwa m'chipinda choyaka moto, imatulutsa kuwala komwe kumayatsa kusakaniza.Kuchuluka kwa kuponderezana, kumapangitsanso mphamvu ya kuphulika, komanso kutsika kwakukulu kwa pistoni.
Pistoni imakakamizika kutsika ndikusuntha mphamvu kudzera mu ndodo yolumikizira ku crankshaft, ndikuitembenuza.Pistoni yopita pansi imavumbulutsanso doko lotulutsa, kenako doko lolowera ndikuyambiranso
ntchito yopondereza kusakaniza kwamafuta a mpweya mu crankcase, kukakamiza kuti ilowe mu silinda pamwambapa.
Ngakhale kuti injini zambiri zozungulira zimagwiritsa ntchito valavu ya flapper, yotchedwa bango, mu crankcase, injini zina sizitero.Ali ndi doko lachitatu, lophimbidwa ndi kuwululidwa ndi fhe piston, lomwe limalola kusakaniza kwamafuta a mpweya kulowa mkati.
chopanda kanthu mu crankcase yopangidwa ndi pisitoni yosunthira mmwamba.Onani 1-3.
Nthawi yotumiza: Jun-30-2023