Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation

Thin-film sensors were used to measure the oil film pressure distribution at piston pin-bore interface in order ascertain stress on pin of a gasoline engine during actual operation. have been manufactured by sputtering method total thickness about 3–6 ?m. The features thin-film utilized successfully main bearings, connecting rod bearings and skirts both diesel automotive engines. However, as lubrication conditions become more severe year year, it has necessary develop with higher durability. use diamond-like carbon (DLC) coating for protective sensor enabled accurate measurement under operating conditions. AVL EXCITETM Power Unit was simulations application elastic fluid theory. calculated values compared measured data, comparison made effect model constraint condition.