GAS-TURBINE PLANT Russian patent published in 2009 - IPC F02C7/06 

FIELD: engines and pumps.

SUBSTANCE: invention is related to the field of gas-turbine plants designed for application in gas-turbine locomotives, mobile and stationary electric stations, and differs by application of cryogenic gas fuel. Oil systems of gas turbine engine and actuators are arranged in separate controlled circulation circuits with their fuel-oil heat exchangers, cooling medium of which is cryogenic gas fuel, oil supply pump and oil tank. Cooling cavities of fuel-oil heat exchangers are connected by fuel pipelines at the inlet to fuel supply and control device, and at the outlet they are connected to fuel heater installed in exhaust nozzle of gas turbine engine. The invention makes it possible to return heat removed by oil from lubricated friction units of both gas-turbine engine and driven actuators into thermodynamic cycle of gas turbine engine, and gas-turbine plant efficiency is improved. Besides, auxiliary power consumption is reduced, oil cooling system design is considerably simplified, fuel heater may be arranged with smaller dimensions due to heating of cryogenic gas in fuel-oil heat exchangers.

EFFECT: creation of efficient gas turbine plant with compact oil cooling system and fuel heater.

1 dwg