Zofunikira zaukadaulo za piston

1. Idzakhala ndi mphamvu zokwanira, kuuma, kulemera kwazing'ono, ndi kulemera kochepa kuti zitsimikizire kuti mphamvu ya inertial icheperachepera.
2. Kutentha kwabwino kwa kutentha, kutentha kwapamwamba, kuthamanga kwapamwamba, kukana kwa dzimbiri, mphamvu yokwanira yotaya kutentha, ndi malo ochepa otentha.
3. Payenera kukhala coefficient yaing'ono ya kukangana pakati pa pisitoni ndi khoma la pistoni.
4. Pamene kutentha kumasintha, kukula ndi kusintha kwa mawonekedwe ziyenera kukhala zazing'ono, ndipo chilolezo chochepa pakati pa khoma la silinda ndi silinda chiyenera kusungidwa.
5. Coefficient yotsika ya kuwonjezereka kwa kutentha, mphamvu yokoka yaing'ono, kuchepetsa kuvala bwino ndi mphamvu zotentha.

Udindo wa pisitoni
Pokhala ndi zofunikira zowonjezereka za mphamvu, chuma, chitetezo cha chilengedwe, ndi kudalirika kwa injini m'galimoto yonse, pisitoni yasanduka chinthu chapamwamba kwambiri chomwe chimagwirizanitsa matekinoloje atsopano monga zopepuka komanso zamphamvu zatsopano, zapadera. -mawonekedwe a cylindrical composite, ndi mabowo a pini apadera, kuti atsimikizire kukana kutentha, kukana kuvala, chitsogozo chokhazikika, ndi ntchito yabwino yosindikiza pisitoni, kuchepetsa kuwonongeka kwa injini, komanso kuchepetsa kugwiritsa ntchito mafuta Phokoso ndi mpweya.
Kuti akwaniritse zofunikira zomwe zili pamwambazi, bwalo lakunja la pisitoni nthawi zambiri limapangidwa ngati bwalo lakunja lopangidwa mwapadera (convex to elliptical), ndiye kuti, gawo la mtanda lomwe limayenderana ndi piston axis ndi ellipse kapena ellipse yosinthidwa, ndi ovality amasintha motsatira malangizo ozungulira motsatira lamulo linalake (monga momwe tawonetsera pa Chithunzi 1), ndi kulondola kwa ovality kwa 0.005mm;Mzere wakunja wa piston longitudinal gawo ndi njira yoyenera ya ntchito yapamwamba, yokhala ndi kulondola kwa 0.005 mpaka 0.01 mm;Pofuna kupititsa patsogolo mphamvu ya pisitoni ndikuwonjezera mphamvu ya injini, bowo la pini la pistoni yolemera kwambiri nthawi zambiri limapangidwa ngati mtundu wa cone wamkati kapena mtundu wamba wopindika pamwamba (bowo la pini lapadera), lokhala ndi kukula kwa dzenje la pini kulondola kwa IT4 ndi kulondola kwa mizere ya 0.003mm.
Piston, monga gawo lofunikira pamagalimoto, ili ndi ukadaulo wamphamvu pamakina.M'makampani opanga ma pistoni apanyumba, mizere yopangira makina nthawi zambiri imakhala ndi zida zamakina omwe amagwiritsidwa ntchito nthawi zonse ndi zida zapadera zomwe zimaphatikiza ukadaulo wa piston.
Chifukwa chake, zida zapadera zakhala zida zazikulu zopangira pisitoni, ndipo ntchito yake ndi kulondola kwake zidzakhudza mwachindunji zizindikiro zamtundu wazinthu zazikulu za chinthu chomaliza.