Udindo ndi mtundu wa mphete ya mafuta
2020-12-02
Ntchito ya mphete ya mafuta ndikugawira mofananamo mafuta opaka mafuta akuphwanyidwa pakhoma la silinda pamene pisitoni ikukwera mmwamba, zomwe zimakhala zopindulitsa pakupaka pisitoni, mphete ya pistoni ndi khoma la silinda; pisitoni ikatsikira pansi, imachotsa mafuta owonjezera opaka pakhoma la silinda kuti isatenthedwe. Malinga ndi mawonekedwe osiyanasiyana, mphete yamafuta imagawidwa m'mitundu iwiri: mphete yamafuta wamba ndi mphete yamafuta ophatikizidwa.
Mphete yamafuta wamba
Kapangidwe ka mphete yamafuta wamba nthawi zambiri imakhala yopangidwa ndi chitsulo cha alloy cast. Mphepete imadulidwa pakati pa malo ozungulira akunja, ndipo mabowo ambiri amathira mafuta kapena ma slits amapangidwa pansi pa poyambira.
Mphete yamafuta ophatikizana
Mphete yamafuta ophatikizika imapangidwa ndi zida zapamwamba komanso zotsika komanso kasupe wapakati. Zojambulazo zimapangidwa ndi zitsulo zokhala ndi chrome. M'malo aulere, m'mimba mwake wakunja kwa chopukutira chomwe chimayikidwa pa kasupe wa kansalu ndi kakang'ono kuposa kukula kwa silinda. Mtunda wapakati pa masambawo umakhalanso wokulirapo pang'ono kuposa m'lifupi mwa nkhokwe ya mphete. Pamene mphete yophatikizika yamafuta ndi pisitoni zimayikidwa mu silinda, kasupe wa liner amapanikizidwa mbali zonse za axial ndi ma radial. Pansi pa mphamvu ya kasupe ya kasupe wa liner, wiper akhoza kumangika. Kupondereza khoma la silinda kumawonjezera kukwapula kwa mafuta. Pa nthawi yomweyo, scrapers awiri amakhalanso mwamphamvu abut pa ring groove. Mphete yamafuta yophatikizika ilibe m'mbuyo, motero imachepetsa kupopera mafuta kwa mphete ya pistoni. Mphete yamafuta yamtunduwu imakhala ndi kukhudzana kwambiri, kusinthika kwabwino pakhoma la silinda, ndime yayikulu yobwerera mafuta, kulemera pang'ono, komanso zowoneka bwino zamafuta. Chifukwa chake, mphete yamafuta ophatikizidwa imagwiritsidwa ntchito kwambiri pamainjini othamanga kwambiri. Nthawi zambiri, mphete imodzi kapena ziwiri zamafuta zimayikidwa pa pistoni. Pamene mphete ziwiri zamafuta zimagwiritsidwa ntchito, yapansi nthawi zambiri imayikidwa kumapeto kwa siketi ya pistoni.
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