Turbomachine designed to operate in turning gear mode
AssigneeTurbomeca
InventorsRomain THIRIET, Vincent POUMAREDE, Camel SERGHINE
Life of this patent
Estimating the term…
Abstract
A field of turbine engines, and more particularly to an engine including a compressor; a combustion chamber; a first turbine connected to the compressor by a first rotary shaft; an actuator device for actuating the first rotary shaft in order to keep the first turbine and the compressor in rotation while the combustion chamber is extinguished; and a lubrication circuit for lubricating the engine. The circuit passes through at least one heat source suitable for heating the lubricant in the lubrication circuit while the first turbine and the compressor are rotating with the combustion chamber extinguished.
Claims14
A turbine engine comprising at least:
- a compressor;
- a combustion chamber situated downstream from the compressor for combustion of a mixture of fuel and of air coming from the compressor;
- a first turbine for expanding the combustion gas coming from the combustion chamber and driving the compressor via a first rotary shaft;
- an actuator device for actuating said first rotary shaft to keep the first turbine and the compressor in rotation while the combustion chamber is extinguished;
- and
- a lubrication circuit for lubricating the engine;
- the lubrication circuit being arranged in such a manner as to lubricate at least one bearing of said first rotary shaft and passing through at least one heat exchanger forming a heat source for heating a lubricant in said lubrication circuit when the temperature of the lubricant drops below a first predetermined threshold while the first turbine and the compressor are rotating with the combustion chamber extinguished.
A power plant comprising:
- a first turbine engine;
- a compressor;
- a combustion chamber situated downstream from the compressor for combustion of a mixture of fuel and of air coming from the compressor;
- a first turbine for expanding the combustion gas coming from the combustion chamber and driving the compressor via a first rotary shaft;
- an actuator device for actuating said first rotary shaft to keep the first turbine and the compressor in rotation while the combustion chamber is extinguished;
- and
- a lubrication circuit for lubricating the engine;
- the lubrication circuit being arranged in such a manner as to lubricate at least one bearing of said first rotary shaft and passing through at least one heat exchanger forming a heat source for heating a lubricant in said lubrication circuit when the temperature of the lubricant drops below a first predetermined threshold while the first turbine and the compressor are rotating with the combustion chamber extinguished;
- and
- a second turbine engine.
The method of regulating the temperature of a lubricant in a lubrication circuit of a turbine engine comprising at least:
- a compressor;
- a combustion chamber situated downstream from the compressor for combustion of a mixture of fuel and of air coming from the compressor;
- a first turbine for expanding combustion gas coming from the combustion chamber and driving the compressor via a first rotary shaft;
- and an actuator device for actuating said first rotary shaft;
- wherein said lubricant, which serves to lubricate at least one bearing of said first rotary shaft, is directed through a heat exchanger forming a heat source having said lubrication circuit passing therethrough in order to heat it when the temperature of the lubricant drops below a first predetermined threshold while the first turbine and the compressor are being kept in rotation by said actuator device with the combustion chamber extinguished.
Dependencies are inferred from the claim text.