Gas turbine engine

Details Gas turbine engine Gas turbine engine

F - Mech Eng,Light,Heat,Weapons

02

K

60/136, 170/73,

F02K 3/072 (2006.01) F01D 5/14 (2006.01) F01D 9/02 (2006.01) F02C 3/067 (2006.01)

Patent

CA 1303370

13DV09608 GAS TURBINE ENGINE ABSTRACT OF THE DISCLOSURE An improved gas turbine engine is disclosed. The engine includes counterrotating first and second turbine rotors without an intervening nozzle. Disclosed also are means for obtaining pitch relative outlet velocity greater than pitch absolute inlet velocity for at least one of the rotors. In one embodiment, the reaction of at least one of the rotors is greater than a reference reaction effecting peak efficiency of the one turbine. Advantages include improved overall engine efficiency and decrease in weight, reduced cooling flow and complexity of the engine.

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