I206 A NEW APPROACH OF CAVITATION CRITERION ANALYSIS FOR AUTOMOTIVE WATER PUMPS(Others in engine)

概要

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Cavitation, represents one of the most important limitations of all types of hydraulic machinery, is the result of a reduction of the local pressure in a disturbed or flowing liquid to a level at, or near to, its vapor pressure. This paper focused on the criterion for the generation and prevention the Cavitation for automotive water pumps. The test was performed on a rig and mixture of 50% antifreeze with 50% water were used for the coolant. The test was carried out for various system pressure and coolant temperature. The present study has shown the Cavitation of water pump is strongly depending on the vapor pressure of the coolant and coolant temperature as well. It has been proved that for above a certain value of system pressure, there were no Cavitation for all tested cases and the influence of cavitation for efficiency, flow-rate of water pump was investigated as well.
一般社団法人日本機械学会の論文
2000-10-01