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Journal of KONES

Tytuł artykułu

The analysis of friction in the bearing of rocker arms

Autorzy Kubiak, P.  Siczek, K.  Siczek, K. 
Treść / Zawartość
Warianty tytułu
Języki publikacji PL
EN Rocker arms are important parts in many valve train systems of combustion engines. They are responsible for translating the profile of the camshaft into motion for opening and closing the inlet and outlet valves. The design, materials and lash adjuster elements for existing rocker arms were discussed. The modified rocker arm bearing was designed for the investigated Benzer 50cc four-stroke engine. The modification for the analysed engine includes the change of bearing for both inlet and outlet rocker arms. The original rocker arm bearing is of the slide type and mates with the axis fixed via the pin to the cylinder head. The modified bearing can be of the needle roller or the slide type and include two bearings mating with the axis, to which the rocker arm is fixed. The aim of the presented study was to obtain the courses of pressure in cylinder against the crankshaft angle, which was needed to calculate the loading force of rocker arm bearing and then friction torque therein. The models of valve train assembly and of the bearing operating under boundary friction were elaborated. Resulted values of the friction torque in rocker arm bearing for different operating conditions of engine were presented in the paper.
Słowa kluczowe
EN rocker arm   slide bearing   combustion engine   friction  
Wydawca Institute of Aviation
Czasopismo Journal of KONES
Rocznik 2016
Tom Vol. 23, No. 2
Strony 231--238
Opis fizyczny Bibliogr. 25 poz., rys.
autor Kubiak, P.
  • Lodz University of Technology Department of Vehicles and Fundamentals of Machine Design Zeromskiego Street 116, 90-924 Lodz, Poland tel.: +48 42 6312248, +48 42 6312250, fax: +48 42 6312255,
autor Siczek, K.
  • Lodz University of Technology Department of Vehicles and Fundamentals of Machine Design Zeromskiego Street 116, 90-924 Lodz, Poland tel.: +48 42 6312248, +48 42 6312250, fax: +48 42 6312255,
autor Siczek, K.
  • Lodz University of Technology, Faculty of Electrical, Electronic, Computer and Control Engineering Stefanowskiego Street 18/22, 90-924 Lodz, Poland tel.: +48 42 6312250, fax: +48 42 6312255,
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PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-89c0fd5c-49a2-4171-9139-259c4339e079
DOI 10.5604/12314005.1213597