Ndife akatswiri pazigawo za injini zapamwamba kwambiri.
Chilankhulo
Kodi kulira kwa valve ndi chiyani?
Galimoto ikadzayamba, injiniyo imapanga phokoso la "da da" lofanana ndi kugwedeza kwachitsulo, komwe kumawonjezeka ndi liwiro la injini.
M'mikhalidwe yachibadwa, injini si nthawi yaitali kuti phokoso, ambiri ali mu ozizira chiyambi pambuyo phokoso laling'ono, ndiye pang'onopang'ono kutha, ichi ndi valavu mphete.
Nchiyani chimapangitsa kuti valavu imveke?
▶ Chifukwa chachikulu cha mphete ya valavu ndi chifukwa chakuti kusiyana pakati pa makina a valve a injini kumapangidwa, zomwe zambiri zimakhala chifukwa cha kuwonongeka kapena kusintha kwa magawo, monga camshaft, rocker arm, hydraulic top column wear.
▶Kutsegula ma valve akuluakulu, kuwonjezera pa kuyatsa galimoto (zowonekera kwambiri pamene galimoto yozizira) imveka, palinso zovuta zina.
Monga: kukweza kwa valve sikokwanira, kulowetsedwa sikukwanira, kutulutsa sikokwanira, mphamvu ya injini imachepetsedwa ndipo kugwiritsa ntchito mafuta kumakhala kwakukulu.
▶ Chifukwa chakuti mtundu uliwonse ndi wosiyana, zofunikira zovomerezeka za valve ndizosiyana. Kawirikawiri, chilolezo chovomerezeka cha valavu chodyera chimakhala pakati pa 15 ndi 20 filaments, ndipo chilolezo chodziwika bwino cha valve yotulutsa mpweya chimakhala pakati pa 25 ndi 35 filaments.
Kodi pali mgwirizano wotani pakati pa phokoso la valve ndi mafuta?
Chifukwa gawo lapamwamba la hydraulic limangosintha ntchito yololeza zimadalira kuthamanga kwa mafuta kuti akwaniritse, kotero kuti phokoso la valve ndi mafuta limakhala ndi ubale wachindunji.
Ndiko kuti, ngati injini si kutha.
1) Kuthamanga kwamafuta ochepa kapena mafuta osakwanira
Kuthamanga kwa mafuta otsika, kutsekemera kwa chipinda cha valve sikuli m'malo; Kapena mafuta osakwanira, mpweya mu gawo la mafuta hydraulic top column gap, umayambitsa mphete ya valve.
2) Mpweya umalowa munjira yamafuta panthawi yokonza
M'malo mwake, izi ndizabwinobwino, chifukwa pakutulutsa mafuta, mafuta omwe ali munjira yamafuta amachotsedwa, mpweya ukhoza kulowa munjira yamafuta ndikuyambitsa mphete ya valve, ndipo mpweya umatuluka pambuyo pakuyenda kwa nthawi yayitali. nthawi, ndipo mphete ya valavu idzazimiririka.
3) Injini imasonkhanitsa mpweya wambiri
Injini ikagwiritsidwa ntchito kwakanthawi, mpweya umachulukana mkati.
Pamene carbon kudzikundikira pamlingo wakutiwakuti, akhoza kutsekereza mafuta ndimeyi, kuchititsa kulephera kwa hayidiroliki pamwamba ndime basi chilolezo ntchito, kuchititsa valavu phokoso.
Kodi ndingapewe bwanji kugwedezeka kwa valve?
▶ Pewani mphete ya valve ndiyosavuta kwambiri, mwiniwakeyo amangotsatira zofunikira za wopanga pa nthawi yokonza, kuteteza injini kuvala, zingathe kuchepetsa kuchitika kwa izi.
▶ Palinso mfundo yofunika kwambiri, tiyenera kusankha injini yoyenera kalasi ndi mamasukidwe akayendedwe a mafuta injini ya galimoto, musamachite mwachimbulimbuli kulondola apamwamba ndi otsika mamasukidwe mafuta.
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