US Patent 9097169 Gas turbine engine heat management system
Patent 9097169 was granted and assigned to Pratt & Whitney Canada on August, 2015 by the United States Patent and Trademark Office.
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A heat management system of a gas turbine engine for cooling oil and heating fuel, includes an oil circuit having parallel connected first and second branches. The first branch includes a fuel/oil heat exchanger and a first fixed restrictor in series and the second branch includes an air cooled oil cooler and a second fixed restrictor. The first and second fixed restrictors limit respective oil flows through the first and second branch differently, in response to viscosity changes of the oil caused by temperature changes of the oil during engine operation to modify oil distribution between the first and second branches.
US Patent 09097169 Gas turbine engine heat management system US Patent 9097169 Gas turbine engine heat management system
US Patent 09097169 Gas turbine engine heat management system
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