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An Experimental Study on the Clutch-Type Water Pump of Diesel Passenger Vehicle for Reducing Fuel Consumption and CO2 Emission

[+] Author Affiliations
Soo-jin Jeong, Jung-kwon Park, Ho-kil Lee, Se-doo Oh

Korea Automotive Technology Institute, Chunan, Chungnam, Korea

Woo-seung Kim

Hanyang University, Ansan, Kyeonggi, Korea

Chang-boke Oh

TaewonMulson Co., Incheon, Korea

Hyung-ho Chun

Korea Evaluation Institute of Industrial Technology, Seoul, Korea

Paper No. AJK2011-23010, pp. 893-903; 11 pages
doi:10.1115/AJK2011-23010
From:
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
  • Hamamatsu, Japan, July 24–29, 2011
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4440-3
  • Copyright © 2011 by KSME

abstract

A typical cooling system of an engine relies on a water pump that circulates the coolant through the system. The pump is typically driven by the crankshaft through a mechanical link with engine starting. In order to reduce the friction and warm-up time of an engine, the clutch-type water pump (CWP) was applied in 2.0 liter diesel vehicle. The clutch-type water pump can force cooling water to supply into an engine by the operation of an electromagnetic clutch equipped as the inner part of pump system. The operation of CWP is decided by temperature of cooling water and engine oil. And, the control logic for an optimal operation of the clutch-type water pump was developed and applied in engine and vehicle tests. in this study, the warm-up time was measured with the conventional water pump and clutch-type water pump in engine tests. And the emission and the fuel consumption were evaluated under NEDC mode in vehicle tests. Also, tests were carried out at the various temperature conditions starting the operation of CWP. As the results, the application of CWP can improve the fuel consumption and CO2 reduction by about 3%.

Copyright © 2011 by KSME

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