The ntchito pamwamba mphete taper ndi tapered pamwamba ndi taper yaing'ono (taper mphete kolona ngodya ya 90 mndandanda dizilo injini ndi 2 °), ndi gawo mtanda ndi trapezoidal. Silinda ikayikidwa mu mphete, m'mphepete mwakunja kokha kwa mpheteyo imalumikizana ndi khoma la silinda, zomwe zimawonjezera kukhudzana kwapamtunda ndikuwongolera kuthamanga ndi kusindikiza. Panthawi imodzimodziyo, ntchito yopukuta mafuta ndi yabwino pamene ikupita pansi, ndipo chifukwa cha "wedge ya mafuta" yamtundu wokhotakhota pamene ikukwera, imatha kuyandama pafilimu yamafuta ndikukhala ndi zotsatira za kugawa mafuta odzola mofanana. Chifukwa chake, ngakhale kupsinjika kwa kukhudzana ndikwambiri, sikungayambitse kuvala kwa fusion.

Mukayika mphete ya taper, pakufunika mayendedwe, ndipo sayenera kuyikidwa chammbuyo, apo ayi zingayambitse kutayikira kwakukulu kwamafuta (pampu yamafuta), kukulitsa kugwiritsa ntchito mafuta opaka mafuta ndi ma depositi a kaboni mu injini. Msonkhano wolondola uyenera kukhala: mapeto ang'onoang'ono a mphete ya taper amaikidwa moyang'anizana mmwamba (mapeto ang'onoang'ono a mphete ya 90 ya injini ya dizilo ya 90 imalembedwa ndi mawu oti "上", ngati chizindikiro cha mphete yakale sichidziwika bwino. , mapeto opukutidwa a bwalo lakunja ayang’ane pansi) . Mphete ya taper si yoyenera kwa mphete yoyamba ya mpweya, chifukwa mphete yoyamba ya mpweya imakhala ndi mphamvu yoyaka kwambiri. Ngati itagwiritsidwa ntchito ngati mphete yoyamba ya mpweya, imatha kukankhidwira kutali ndi khoma la silinda ndikutaya kusindikiza kwake.

2 mphete zopindika

Gawo lopindika la mphete yopindika ndi yosalala, ndipo m'mphepete chakumtunda kwa bwalo lamkati mwa mpheteyo ndi yopindika (monga mphete yachiwiri ndi yachitatu ya injini ya dizilo ya 4125A), kapena yopindika (monga mphete zonse za mpweya wa 4125A). injini ya dizilo ya 4115T); Palinso ma grooves kapena chamfers pamunsi pamphepete mwa mphete yakunja ya mphete. Chifukwa gawo la mpheteyo ndi la asymmetrical ndipo mphamvu yotanuka ndi yosalinganika, idzagwedezeka yokha itatha kuyika silinda. Kunja kwa mpheteyo ndi malo otsetsereka okhala ndi nsonga yaying'ono ndi pansi yayikulu, yomwe imalumikizana ndi khoma la silinda, komanso yolumikizana ndi mzere wa mphete, ndipo ili pafupi ndi malo apamwamba ndi otsika. mphete ya ring. Izi sizimangokhalira kuyendetsa bwino komanso kusindikiza, komanso kumachepetsa kukhudzidwa ndi kuvala pa ring groove, komanso kukwapula kwa mafuta ndi kugawa mafuta kumakhala bwinoko. Kuyika kwa mphete yopotoka kumakhala kofanana ndi mphete ya taper, ndipo palinso kufunikira kotsogolera, ndipo sikungakhazikitsidwe kumbuyo, mwinamwake kumapangitsa kuti mafuta ayambe kuthamanga. Mbali yamkati yopindika kapena yopindika ya mphete ya torsion iyenera kuyikidwa kuyang'ana mmwamba; mbali yakunja yopindika kapena yopindika iyenera kuyikidwa moyang'ana pansi. Mphete yokhotakhota nayonso si yoyenera kwa mphete yoyamba ya mpweya. Monga mphete ya taper, ngati mphete yoyamba ya mpweya itagwiritsidwa ntchito, ikhoza kukankhidwira kutali ndi khoma la silinda ndi kutaya mphamvu yake yosindikiza.

3 mphete za mbiya

Kunja kwa mphete yooneka ngati mbiya ndi yozungulira komanso yokhayokha pambuyo popera, yomwe imakhala yofanana ndi gawo loyamba la gawo lamakona anayi pambuyo pothamanga. Pambuyo poyikidwa mu silinda, imakhala yolumikizana ndi khoma la silinda, ndipo mayendedwe okwera ndi pansi amakhala ndi zotsatira zopanga filimu yamafuta. Yalimbikitsidwa pa liwiro lapamwamba komanso mphamvu ya akavalo. Amagwiritsidwa ntchito kwambiri mu injini, ngati mphete yoyamba ya gasi. Zodziwika bwino ndi mphete zokhala ndi ma rectangular cross-section barrel, single sided trapezoidal barrel rings or two sided trapezoidal barrel rings. Mukayika, mbali yomwe ili ndi chizindikirocho iyenera kuyang'ana pamwamba pa pisitoni, apo ayi ndizosavuta kuyambitsa zolephera monga kusasindikiza bwino, kutsika kwa silinda, kuchuluka kwa mafuta, komanso kuvutikira poyambira.

5 mphete zamakona anayi

Mphete zamakona amakona zimatchedwanso mphete zophwanyika, zomwe zimakhala zosavuta kupanga, zimakhala ndi malo akuluakulu okhudzana ndi khoma la silinda, ndipo zimakhala ndi mphamvu zowononga kutentha. Pakali pano ndi mphete za pistoni zomwe zimagwiritsidwa ntchito kwambiri. Ndiosavuta kukhazikitsa, popanda mulimonse, itha kugwiritsidwa ntchito ngati mphete yoyamba, yachiwiri ndi yachitatu. Koma pisitoni ikabwereranso, imakhala ndi ntchito yopopa mafuta, ndiko kuti, pistoni ikangobwereza, mphete ya pisitoni imakankhira mafuta mumsewu wopita kuchipinda choyakako kamodzi, ndipo mafuta amaponyedwa mosavuta mchipinda choyaka. Pamene mphete yamakona anayi imasakanizidwa ndi mphete ya tapered kapena mphete yopindika, mphete yamakona anayi imagwiritsidwa ntchito ngati mphete yoyamba ya gasi.

ndi

6 mphete za trapezoidal

Mphete ya trapezoidal nthawi zambiri imagwiritsidwa ntchito ngati mphete yoyamba ya injini ya dizilo yokhala ndi katundu wambiri. Ikhoza kusintha kusiyana pakati pa mphete ndi mphete ya mphete pamene pisitoni imagwedezeka kumanzere ndi kumanja kapena kusiyana pakati pa mitseko ya mphete kumasintha, potero kufinya mafuta a coke mmenemo, zomwe zingathe Kulepheretsa mphete ya pistoni kuti isagwedezeke chifukwa cha gumming. .