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Efficient Controllable Variable Flow (CVF) Cooling System for Modern Engines
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 2008 by SAE International in United States
Annotation ability available
Active control of engine-cooling systems over the full range of operating conditions including warm-up, peak-load, and part-load conditions is a fundamental requirement for today's advanced thermal management systems. The controllable Variable Flow (CVF) cooling system described herein combines efficient hydrodynamic performance with modulated output and flow control. Conventional hydrodynamic layouts for engine-cooling pumps are based on a uniform spin-free fluid flow into the impeller. This CVF system introduces an upstream pre-swirl to the flow thus changing the pump output, its magnitude is controlled in response to the varying heat rejection requirement thus providing efficient cooling on demand, for all operating conditions. The underlying principles, development test results, and the benefits for both gasoline and diesel engine cooling systems are presented and explained.
CitationFulton, J., Repple, W., Atschreiter, F., Alberer, D. et al., "Efficient Controllable Variable Flow (CVF) Cooling System for Modern Engines," SAE Technical Paper 2008-01-2766, 2008, https://doi.org/10.4271/2008-01-2766.
- Pang H. H Brace C.J. Review of engine cooling technologies for modern engines IMechE 2004
- Koch Franz W. Haubner Frank G. Cooling System Development and Optimization for DI Engines SAE 2000-01-0283
- Allen David J. Lasecki Michael P. Thermal Management Evolution and Controlled Coolant Flow SAE 2001-01-1732
- Chanfreau Matthieu Gessler Bertrand Farkh Alain Yves Geels Pierre The Need for an Electrical Water Valve in a THErmal Management Intelligent System (THEMIS) SAE 2003-01-0274
- Pang H. H Brace C.J. Akehurst S. Potential of a Controllable Engine Cooling System to Reduce Nox Emissions in Diesel Engines SAE 2004-01-0054
- Choukroun Alexandre Chanfreau Matthieu Automatic Control of Electronic Actuators for an Optimized Engine Cooling Thermal Management 2001-01-1758 SAE
- Wagner John R. Srinivasan Venkat Dawson Darren M. Smart Thermostat and Coolant Pump Control for Engine Thermal Management Systems SAE 2003-01-0272
- Krause Wolfgang Speise Karl Dynamic Control of the Coolant Temperature for a reduction of Fuel Consumption and Hydrocarbon Emission SAE 960271
- Chanfreau Matthieu Alex Joseph Butler Darren Swiatek Richard Advanced Engine Cooling Thermal Management System on a Dual Voltage 42V-14V Minivan SAE 2001-01-1742
- Chalgren Robert D. Jr. Thermal Comfort and Warm-up Optimization of a Low Flow Advanced Thermal Management System SAE 2004-01-0047
- Hughes C.A.V. Wiseman M.W. Feasibility of Intelligent Control Strategies to reduce cooling System Size SAE 2001-01-1759
- Etemad S. Anderson A. Thermostatic-controlled coolant pump - a new concept for fuel saving, VTMS4 1999
- Tamm Alberto Ludwig Gerhard Stoffel Bernd Numerical, Experimental and Theoretical Analysis of the Individual Efficiencies of a Centrifugal Pump FEDSM2001-18071, ASME