An embodiment of the present invention takes the form of a system that uses exhaust from the combustion turbine engine to heat the fuel gas (130) consumed by a combustion turbine engine. The benefits of the present invention include reducing the need to us...

A system (100) for cooling one or more circulating flows of oil (110), the system comprising: one or more fuel-oil heat exchangers (113), the fuel-oil heat exchangers using fuel for an engine (111) to cool at least one of the one or more circulating flows ...

A compression pump (128) for an engine (100) is provided. The pump (128) may include a first impeller (136) operatively coupled to a main shaft (108) of the engine (100), a first inlet (144) configured to at least partially receive bypass airflow and a fir...

A turbomachine cooling arrangement includes a pump (78) configured to pressurize a first turbomachine fluid that is then communicated through a heat exchanger assembly (66) to remove thermal energy from a second turbomachine fluid. A portion of the pump (7...

The engine (2) has axial compressors (42, 44) traversed by primary flow (4), and a wall (26) defining an internal surface of secondary flow (6). A passage (22) generates discharge current drain controlled from the primary flow toward the secondary flow. A ...

A cooling air cooling system (40) is selectively operable to reduce fuel gum deposits within the cooling system during gas turbine engine operations. The cooling system includes a recirculating loop (46) that includes at least three heat exchangers (50, 52...