Browse Publications Technical Papers 2007-01-1441

Advanced Piston Cooling Efficiency: A Comparison of Different New Gallery Cooling Concepts 2007-01-1441

This paper shows results of an experimental study based on a passenger car diesel engine: The piston temperature reduction potential of advanced gallery cooling concepts compared to the standard gallery cooling solution has been investigated. Therefore, different piston cooling concepts featuring one or two oil nozzles per cylinder and combined with compatibly designed cooling galleries have been tested. The influence of the parameters cooling gallery shape and oil nozzle configuration relative to the piston on the piston temperature has been analyzed. The use of suitably adapted advanced piston cooling concepts results in significant improvement of cooling efficiency compared to the established gallery cooling solution.


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