Pomwe injini ya VAZ imagwadira valavu

Eni magalimoto ambiri ali ndi chidwi ndi funso ili, ndimagalimoto ati, kapena injini, yomwe valve imapindika lamba wa nthawi ikasweka? Kukumbukira zosintha za injinizi sikovuta kwenikweni.

Tiyeni tiyambe mwadongosolo. Pamene magalimoto oyamba a VAZ 2110 adawonekera, ma injini a 8-valve adayikidwapo, ndi buku la 1,5 kenako voliyumu ya malita 1,6. Pa injini zoterezi, pakaphulika lamba, valavuyo sinapindike, chifukwa ma pistoni sanakumane ndi ma valve.

Patapita kanthawi, m'banja la khumi la VAZ, galimoto ya VAZ 2112 yokhala ndi 16-valve 1,5-lita injini. Apa ndipomwe mavuto oyamba adayamba kwa eni oyamba agalimotozi. Kapangidwe ka injini kakusintha pang'ono, chifukwa cha valavu yamutu wa 16, ndipo mphamvu ya injini yoteroyo yawonjezeka kuchokera pa 76 ndiyamphamvu mpaka 92 hp. Koma kuwonjezera pa maubwino a injini yotereyi, panali zovuta zina. Momwemonso, pamene lamba wa nthawi umatha pa injini ngati izi, ma pisitoni adakumana ndi mavavu, chifukwa chake valavu idapinda. Pambuyo pa zonsezi, eni magalimoto okhala ndi injini zotero anali kuyembekezera kukonzanso mtengo, komwe kumayenera kuwononga ma ruble osachepera 10.

Chifukwa cha kuwonongeka koteroko ngati mavavu opindika ndikapangidwe ka injini yamagetsi ya 1,5 16: muma motors otere, ma pistoni alibe mipata yama valve, chifukwa chake, pamene lamba limasweka, ma pistoni amamenya mavavu ndi mavavu ndi opindika.

Patapita kanthawi, pa magalimoto omwewo a VAZ 2112, ma injini atsopano a 16-valve okhala ndi mphamvu ya malita 1,6 adayamba kukhazikitsidwa. Kapangidwe ka injini zotere sizinali zosiyana kwambiri ndi zam'mbuyomu zomwe zidali ndi mphamvu ya 1,5 malita, koma pali kusiyana kofunikira. Mu injini yatsopano, ma pistoni adayikika kale ndi ma grooves, chifukwa chake, ngati lamba wa nthawi ikutha, ma pistoni sadzakumananso ndi ma valve, zomwe zikutanthauza kuti kukonzanso mtengo kungapewedwe.

Zaka zingapo zapita, ndipo oyendetsa galimoto ayamba kale kudziwa kuti injini za valve 16 zakhala zodalirika, kunena kwake, kuvulala-otetezeka pokhudzana ndi ma valve. Koma galimoto yatsopano idatuluka pamzere wa msonkhano, wina anganene kuti Lada Priora yasinthidwa khumi. Eni ake onse ankaganiza kuti popeza Priors anali ndi injini ya 16-lita ya 1,6-valve, valavuyo sichidzapindika. Koma monga momwe zasonyezera, pakakhala lamba wosweka pa Lada Priore, ma valve amakumana ndi ma pistoni ndikuwapinda. Ndipo kukonza injini zotere kudzakhala okwera mtengo kwambiri kuposa "khumi ndi ziwiri" injini. Zoonadi, mwayi woti lamba udzathyole pa Priore siwokwera kwambiri, chifukwa lamba wa nthawi ndi pafupifupi kawiri m'lifupi kuposa "khumi ndi ziwiri" injini. Koma, ngati mutakumana ndi lamba wolakwika, ndiye kuti mwayi wopuma lamba ukuwonjezeka kwambiri ndipo n'zosatheka kudziwa nthawi yopuma.

Komanso, pa injini zatsopano zomwe zaikidwa pa Lada Kalina: 1,4-valves 16, palinso vuto lomwelo, pamene lamba limasweka, kukonzanso mtengo kwakukulu sikungapeweke. Chifukwa chake, muyenera kuwunika nthawi zonse momwe lamba wanyengo amayendera.

Muyeneranso kudalira kuti ngati muli ndi injini yotetezeka, mavavu omwe ali pa injini yotere sangapinde. Ngati pali mpweya wawukulu wa kaboni pa ma pistoni ndi mavavu, ndiye kuti nthawi zina kupindika kwa valavu kumatheka pa injini ngati izi. Komanso, nthawi zonse mumafunikira kuwunika momwe lamba wanyengo amayendera, fufuzani tchipisi, ming'alu, ulusi womwe ukutuluka komanso delamination. Zizindikiro zonsezi zikuwonetsa kuti muyenera kusintha lamba nthawi yomweyo. Ndibwino kugwiritsa ntchito ma ruble 1500 kusiyana ndi kupereka kangapo kakhumi. Musaiwale kuti m'malo mwa odzigudubuza, ndikofunikira kuti musinthe nthawi iliyonse mukamaliza lamba.