| 摘要 |
A gas turbine engine includes a gas generator 16 and a power turbine. The power turbine includes a first rotor 38 having a plurality of first turbine blade rows 46 extending radially outwardly therefrom, and a second rotor 48 having a plurality of second turbine blade rows 50 extending radially inwardly therefrom. The power turbine is supported aft of the gas generator 16 and is effective for receiving combustion gases therefrom and expanding the gases through the first and second turbine blade rows 46, 50 for extracting substantially all output power therefrom for driving the first and second rotors in counterrotating directions. <IMAGE> |
