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Split radiator design for heat rejection optimization for a waste heat recovery system

United States Patent

9,470,115
October 18, 2016
View the Complete Patent at the US Patent & Trademark Office
A cooling system provides improved heat recovery by providing a split core radiator for both engine cooling and condenser cooling for a Rankine cycle (RC). The cooling system includes a radiator having a first cooling core portion and a second cooling core portion. An engine cooling loop is fluidly connected the second cooling core portion. A condenser of an RC has a cooling loop fluidly connected to the first cooling core portion. A valve is provided between the engine cooling loop and the condenser cooling loop adjustably control the flow of coolant in the condenser cooling loop into the engine cooling loop. The cooling system includes a controller communicatively coupled to the valve and adapted to determine a load requirement for the internal combustion engine and adjust the valve in accordance with the engine load requirement.
Ernst; Timothy C. (Columbus, IN), Nelson; Christopher R. (Columbus, IN)
CUMMINS INTELLECTUAL PROPERTY, INC. (Minneapolis, MN)
13/ 816,446
20140007575
August 11, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under "Exhaust Energy Recovery," contract number DE-FC26-05NT42419 awarded by the Department of Energy (DOE). The government has certain rights in the invention.