Patent ID: 8438850
Filing Date: 2013-05-14
Classification: F02C,F05D

Abstract:
1. A waste heat utilization system for preheating fuel for a turbine engine component, the component including at least two heat generating sources, the system including means for selectively applying heat from one or more of the at least two heat generating sources to relatively cold fuel for the turbine engine to preheat the fuel prior to ignition, and an isolation valve located on an incoming fuel line to shunt fuel from the incoming fuel line to the means for selectively applying heat, wherein the at least two heat generating sources each removes heat from a different moving part of the turbine engine component, further including at least one valve arrangement for selectively blocking flow of heat from the at least two heat generating sources from flowing through the means for selectively applying heat, wherein a first of the at least two heat generating sources includes hot lubricating oil from the turbine engine component and a second of the at least two heat generating sources includes heated auxiliary cooling water.