The impact of microgeometry pistons with a stepped bearing surface for the friction loss of the internal combustion engine

The impact of microgeometry pistons with a stepped bearing surface for the friction loss of the internal combustion engine

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This paper present the results of experimental piston friction losses on stepped bearing surface microgeometry obtained on the test rig.This test rig is equipped with special temperature AEG HKB75NB540 75cm Five Burner Gas-on-glass Hob With Work Burner control system, which provides better stability to temperature than in standard systems.The results of station tests was discussed.

Tests was analyzed depending the moment caused by the friction on the oil temperature in the oil sump.Specified conclusions allow to assess the impact of the stepped profile of the pistons bearing surface microgeometry for different values HAZELNUT of engine speed and the oil temperature at the friction losses in the main kinematic engine node which is piston-cylinder.