Essays about: "kolvring"

Found 2 essays containing the word kolvring.

  1. 1. Tribological evaluation of the contact between upper compression ring and cylinder liner with different surface coatings

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

    Author : Pär Wassborg; [2016]
    Keywords : piston ring; cylinder liner; wear; friction; grey cast iron; titanium oxide; chromium oxide;

    Abstract : The constant pursuit in the automotive industry to increase the engines performance, new solutions are always developed and tested to reduce the friction and increase the efficiency in the engine. One component that contributes to friction losses is the piston ring pack where the top compression stands for up to 40 %. READ MORE

  3. 2. 3D parameterized FEM modelling of a piston ring in a marine diesel engine : a simulation approch using FEM

    University essay from Institutionen för fysik

    Author : Jon Elfridsson; [2010]
    Keywords : piston ring; finite element method; FEM; solid mechanics; contact pressure; twist; temperature field; three-dimensional; kolvring; finita elementmetoden; FEM; hållfasthetslära; kontakttryck; twist; värmelast; tredimensionell;

    Abstract : The piston ring in a marine two-stroke diesel engine operates in demanding conditions, involving high temperatures and pressures. Its main purposes are to seal the combustion chamber of the engine, minimize the frictional contact against the cylinder liner and transfer heat from the piston. READ MORE