F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/136
F02C 3/04 (2006.01) F01D 5/18 (2006.01) F02C 6/00 (2006.01) F02C 7/12 (2006.01) F02C 9/16 (2006.01) F02K 3/075 (2006.01) F23R 3/34 (2006.01) F23R 3/38 (2006.01)
Patent
CA 1253350
GAS TURBINE ENGINE ABSTRACT OF THE DISCLOSURE A gas turbine engine that can operate at a very high efficiency over a wide range of load conditions. In one important feature of the invention, combustion gases are discharged along two paths, one with constant energy and the other with energy that varies in accordance with the engine load. The constant energy discharge drives a turbine that, in turn, operates a compressor for the engine at a constant, high efficiency. Alternatively, the compressor is driven at a speed that varies inversely with the engine load such that the engine operates at a high efficiency for all loads. In another, independent feature of the invention, the combustion occurs at a stoichiometric ratio of fuel and air, with the turbine blades being protected from the vastly increased combustion gas temperatures by an internal array of passageways through which cooling liquid, e.g., liquid fuel, and air are channeled. The fuel and air mix together to form a rich, turbulent pre-mix for ejection directly into the surrounding combustion chamber. This configuration can also be utilized to inject steam into the combustion chamber, to provide a Rankine cycle, with internal cogeneration. In yet another independent aspect of the invention, the compressor that supplies compressed air to the combustion chamber includes two counter-rotating radial impellers, with the second impeller further functioning as a diffuser for the first impeller.
492585
Gowling Lafleur Henderson Llp
Paul Marius A.
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