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A New Approach of Cavitation Criterion Analysis for Automotive Water Pumps
Technical Paper
2000-05-0134
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English
Abstract
Cavitation, represents one of the most important limitations of all types of hydraulic machinery so as to automotive water pump, 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 water pump motoring rig and mixture of 50% antifreeze, ethylene glycol, with 50% water were used for the coolant. The test was carried out for various system pressure and for various coolant temperature which were controlled. The present study shows that 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, surge tank pressure there were no cavitation for all tested water pumps and the influence of cavitation for efficiency, flow-rate of water pump was investigated as well.
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Authors
- Ki-chan KIM - 1), 2), 3), 4) Engine test team, Tech Center, Daewoo Motors Co., 199 Chongchon-dong Pupyong-gu, Inchon, 403-714, South Korea
- Jae-joon Lee - 1), 2), 3), 4) Engine test team, Tech Center, Daewoo Motors Co., 199 Chongchon-dong Pupyong-gu, Inchon, 403-714, South Korea
- Mun-soo Chon - 1), 2), 3), 4) Engine test team, Tech Center, Daewoo Motors Co., 199 Chongchon-dong Pupyong-gu, Inchon, 403-714, South Korea
- Jeong-eui Yun - 1), 2), 3), 4) Engine test team, Tech Center, Daewoo Motors Co., 199 Chongchon-dong Pupyong-gu, Inchon, 403-714, South Korea
Citation
KIM, K., Lee, J., Chon, M., and Yun, J., "A New Approach of Cavitation Criterion Analysis for Automotive Water Pumps," SAE Technical Paper 2000-05-0134, 2000.Also In
References
- “Cavitation intensity measurements for internal combustion engines” Hosny Diaa M. et al 1996 SAE 960884
- “Real time cavitation detection method” Hosny Diaa M. 1996 SAE 960878
- “Car cooling systems and their pumps” Eimieh Farrokh Degree M.A. 1975 University of Southampton
- “The effectiveness of degassing of surge tank by changing bypass ports positons” Kckim et al. 1998 Technical review '98 Daewoo Motors Co. Tech Center 1998 277 282
- “The performance of water pumps for automotive cooling systems” Hadji-Sheikh Mahmoud, M.A degree 1979 University of Southampton