paZochita za valve yolowera.
Ntchito ya valve ndiyomwe imayambitsa kulowetsa mpweya mu injini ndikutulutsa mpweya wotulutsa mpweya pambuyo poyaka. Kuchokera pamapangidwe a injini, imagawidwa kukhala valavu yolowera ndi valavu yotulutsa mpweya. Ntchito ya valve yolowera ndikukokera mpweya mu injini ndikusakaniza ndi mafuta kuti awotche; Ntchito ya valve yotulutsa mpweya ndiyo kutulutsa mpweya wotulutsa mpweya pambuyo pa kuyaka ndikutaya kutentha.
Kupanga: Vavu imapangidwa ndi mutu wa valve ndi ndodo. Kutentha kwa mutu wa valavu ndikwapamwamba kwambiri (vavu yolowera 570 ~ 670K, valavu yotulutsa 1050 ~ 1200K), komanso kupirira kupanikizika kwa mpweya, mphamvu ya masika a valve ndi gawo lopatsirana la inertia mphamvu, kutsekemera kwake, kuziziritsa kumakhala kosauka, kumafunika. valavu iyenera kukhala ndi mphamvu zina, kuuma, kutentha ndi kuvala kukana. Vavu yolowera nthawi zambiri imapangidwa ndi chitsulo cha alloy (chromium steel, nickel-chromium steel), ndipo valavu yotulutsa mpweya imapangidwa ndi aloyi wosamva kutentha (silicon chromium steel). Nthawi zina pofuna kupulumutsa aloyi osamva kutentha, mutu wa vavu wotulutsa umapangidwa ndi aloyi wosamva kutentha, ndipo ndodoyo imapangidwa ndi chitsulo cha chromium, kenako ziwirizo zimalumikizidwa pamodzi.
Maonekedwe a mutu wa valavu ali ndi nsonga yosalala, pamwamba yozungulira ndi nyanga pamwamba. Nthawi zambiri nsonga yosalala imagwiritsidwa ntchito. Mutu wa valavu ya flat-top uli ndi ubwino wa mapangidwe osavuta, kupanga kosavuta, malo ang'onoang'ono otentha otentha, ochepa, ndipo angagwiritsidwe ntchito polowetsa ndi kutulutsa mpweya. Valavu yapamwamba yozungulira ndi yoyenera valavu yotulutsa mpweya, yomwe imakhala ndi mphamvu zambiri, kukana kutulutsa mpweya pang'ono komanso kutulutsa mpweya wabwino, koma imakhala ndi malo otentha kwambiri, misa yambiri ndi inertia, komanso kukonza zovuta. Mtundu wa nyanga uli ndi njira inayake, yomwe ingachepetse kukana kudya, koma mutu wake umatenthedwa ndi dera lalikulu, lomwe liri loyenera valavu yowonongeka.
Ndodo ya valve ndi cylindrical, imangobwerezabwereza mu kalozera wa valve, ndipo pamwamba pake iyenera kutenthedwa kwambiri ndi kupukutidwa. Mawonekedwe a kumapeto kwa ndodo ya valve amadalira mawonekedwe okhazikika a kasupe wa valve, mawonekedwe omwe amagwiritsidwa ntchito kawirikawiri ndi zidutswa ziwiri zokhoma kuti akonze mpando wa masika, kumapeto kwa ndodo ya valve kumakhala ndi mphete yoyikapo loko, zina zimakhazikika ndi pini ya loko, ndipo mapeto ake ali ndi dzenje loyikapo loko
Kodi valavu yolowetsa injini iyenera kutsukidwa?
M'malo mwake, mbali zonse zagalimoto zimakhala ndi kuyeretsa nthawi zonse, makamaka mtima wagalimoto - injini, ngati siinatsukidwe, kudzikundikira kwa kaboni mkati kungachepetse mphamvu ya injini, kukulitsa kugwiritsa ntchito mafuta, ndipo pakavuta kwambiri kumayambitsa injini. kugogoda, kuthamangitsa phokoso lachilendo, kuwonongeka kwa pisitoni ndi crankshaft, ndipo ngakhale pamapeto pake kumapangitsa injini kuyaka mafuta kuyenera kukonzedwanso. Ndiye kuyeretsa injini, valavu yolowera iyenera kutsukidwa, zotsatirazi ndikulankhula mwachidule za kuyeretsa ma valve olowetsa.
Kuyeretsa valavu yolowetsamo, choyamba, kumadalira kuchuluka kwa carbon yomwe imayikidwa, ndipo ndi zachilendo kudziunjikira carbon.
Galimoto nthawi zambiri imakhala yopitilira makilomita 40,000, ndikofunikira kuganizira kuyeretsa kwamafuta a kaboni, pomwe kuyika kwa kaboni kumakhala koonekeratu. Kenako mwiniwake adzafunsa momwe angayang'anire kuchuluka kwa kaboni wa injini
Momwe mungayang'anire ngati injini ili ndi ma depositi a kaboni
Njirayi ndi yosavuta. Manga chala chanu mu chopukutira choyera chamadzulo
M'kati mwa mchira-kumapeto kwa chitoliro chotulutsa mpweya, pukutani mozungulira molimba, ndipo yang'anani mtundu wa pepala kuti muwone ngati injiniyo ili ndi ma depositi a carbon.
Njirayi imatha kudziwa ngati chipinda choyaka moto, pisitoni ndi mphete ya kaboni mu silinda ya injini ndizovuta kwambiri.
1, mchira chitoliro palibe mpweya: zala wokutidwa mu zopukutira woyera, zovuta misozi mchira chitoliro doko mkati bwalo, pepala kokha kuwala chikasu, kusonyeza kuti injini mkati palibe mpweya;
2, utsi chitoliro akuyandama mpweya: njira yomweyo, anapeza kuti utsi chitoliro ali pang'ono wakuda mpweya, pang'onopang'ono patsani chopukutira woyera watsala, yamphamvu injini, pisitoni, mphete ntchito yachibadwa, pali yachibadwa kuchuluka kwa mpweya woyandama. (wotchedwanso carbon thovu, osati kuikidwa).
3, kutulutsa chitoliro chakuda kaboni: pogwiritsa ntchito njira yomweyi, adapeza kuti chitoliro chotulutsa chitoliro chimakhala chakuda kwambiri, pambuyo pomenya chopukutira choyera, pakadali mpweya wakuda kwambiri pamapepala, zomwe zikuwonetsa kuti ndikofunikira. kuyeretsa chipinda choyaka moto, pisitoni, mphete ya carbon deposit;
4, kutulutsa mpweya wamafuta a chitoliro: Pogwiritsa ntchito njira yomweyo, adapeza kuti papepala loyera lopukutira pali kaboni wakuda, ndipo pali madontho amafuta, zomwe zikuwonetsa kuti injini imawotcha mafuta ndipo ikufunika kukonzedwa.
5, utsi wa chitoliro mafuta mpweya utsi: zingadziŵike kuti chifukwa cha kudzikundikira mpweya ndi zifukwa zina, injini yamphamvu thupi kuvala ndi lalikulu, kufunika kukonza akatswiri. Nthawi zonse kuyeretsa mbali zosiyanasiyana za galimoto ndi zabwino kwa galimoto yokha, komanso chitetezo chawo ndi thanzi. Ngakhale galimoto ndi yabwino bwanji, m'pofunika kukonza galimoto.
Ngati mukufuna kudziwa zambiri, pitilizani kuwerenga zolemba zina patsamba lino!
Chonde tiyimbireni ngati mukufuna zinthu zotere.
Malingaliro a kampani Zhuo Meng Shanghai Auto Co., Ltd.adadzipereka kugulitsa zida zamagalimoto a MG&MAUXS olandiridwakugula.
