Improving fuel efficiency with laser surface textured piston rings |
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Authors: | I Etsion E Sher |
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Affiliation: | a Department of Mechanical Engineering, Technion, Haifa 32000, Israel b Department of Mechanical Engineering, The Pearlstone Center for Aeronautical Studies, Ben Gurion University, Beer-Sheva 84105, Israel |
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Abstract: | An experimental study is presented to evaluate the effect of partially laser surface textured piston rings on the fuel consumption and exhaust gas composition of a compression-ignition IC engine. Dynamometer tests were performed with a Ford Transit naturally aspirated 2500 cm3 engine at a wide range of engine speeds under near-half-load conditions. A comparison was made between the performance of reference non-textured conventional barrel-shaped rings and optimum partial laser surface texturing (LST) cylindrical-shape rings. It was found that the partial LST piston rings exhibited up to 4% lower fuel consumption, while no traceable change in the exhaust gas composition or smoke level was observed. |
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Keywords: | IC Engines Fuel efficiency Engine friction Piston rings Laser surface texturing |
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