Wear of Piston Rings and Liners by Laboratory Simulation

Time Dependent Wear and Its Mechanisms in Engine Cylinders

“…Yflctr tn e~r (8)(9) where l g is the length from the big end of the connecting-rod to the center of mass of the connecting-rod. 1 is the length of the connecting-rod.…”

“…In an engine, the force acting on the cylinder liner by a ring in the wear measuring area is F(9) = p w (9)A (8)(9)(10)(11)(12) where A is the nominal contacting area between the liner and the ring within the wear measuring area. Here, the wear measuring area of the wear probe is b x a where b is the width of the measuring area and a is the measuring length along the axis of the cylinder liner.…”

“…Here, the wear measuring area of the wear probe is b x a where b is the width of the measuring area and a is the measuring length along the axis of the cylinder liner. For the pistonring of thickness t,, the nominal area A in Equation (8)(9)(10)(11)(12) should be b x t,.. Therefore, at crank angle 9 Equation The crank angle degree which covers the measuring area of the wear probe is from 9, to GL Therefore, the wear volume in the measured area of the wear probe, due to piston moving from 8, …”