Gas turbine unit for generating mechanical energy and compressed air

Claim 2

A gas turbine aggregate, especially an auxiliary aggregate for the production of mechanical energy and compressed air for aircraft; said aggregate comprising: compressor means, an output shaft, compressed air line means fed by said compressor means and being operatively connected with load means, branch line means operable to be closed and branching off from the compressed air line means, the branch line means leading to an air turbine means, and connecting means operatively connecting the air turbine means with the output shaft of the gas turbine, said connecting means including transmission means operatively connecting the output shaft of the gas turbine and the output shaft of the air turbine means with an input shaft of a rotating load, said transmission means including at least two gears which mesh with a third gear, the output shaft oF the gas turbine and the output shaft of the air turbine means and the input shaft of the load are connected with a respective gear.

Claim 3

A gas turbine aggregate according to claim 1, wherein said rotating load is an electric generator.

Claim 4

A gas turbine aggregate according to claim 1, wherein said compressed air line means is operatively connected to said load means via first valve means for selectively adjusting the desired air flow rate through said compressed air line means.

Claim 5

A gas turbine aggregate according to claim 3, wherein second valve means is arranged in said branch line means for the selective opening or closing thereof, whereby when the demand for compressed air by said load means decreases, said first valve means will decrease the air flow rate through said compressor line means and said second valve means will be simultaneously opened so that compressed air flows through said branch line means.

Claim 6

A gas turbine aggregate according to claim 4, characterized in that the compressor means is a multi-stage compressor including a low pressure section and a high pressure section, said compressed air line means branching off downstream of the low-pressure section.

Claim 7

A gas turbine aggregate according to claim 1, characterized in that said third gear is connected to the gas turbine output shaft.

Claim 8

A gas turbine aggregate according to claim 1, characterized in that an exhaust line means leading away from the outlet of the air turbine means is provided, said exhaust line means being separate from said compressed air line means so that the exhaust from the air turbine means is not connected with said load means, and in that said exhaust line means leads to a low pressure atmosphere such as the exterior of an airplane flying at high altitudes.

Claim 9

A gas turbine aggregate according to claim 7, characterized in that the compressor means is a multi-stage compressor including a low-pressure section and a high-pressure section, the compressed air line means branching off downstream of the low-pressure section.

Claim 10

A gas turbine aggregate, especially an auxiliary aggregate for the production of mechanical energy and compressed air for aircraft; said aggregate comprising: compressor means, an output shaft, compressed air line means fed by said compressor means and being operatively connected with load means, said compressor means being a multi-stage compressor including a low-pressure section and a high-pressure section, the compressed air line means branching off downstream of the low-pressure section, branch line means operable to be closed and branching off from the compressed air line means, the branch line means leading to an air turbine means, and connecting means operatively connecting the air turbine means with the output shaft of the gas turbine, said connecting means including transmission means operatively connecting the output shaft of the gas turbine and the output shaft of the air turbine means with an input shaft of a rotating load, said transmission means including at least two gears which mesh with a third gear, the output shaft of the gas turbine and the output shaft of the air turbine means and the input shaft of the load are connected with a respective gear.

Claim 11

A gas turbine aggregate, especially an auxiliary aggregate for the production of mechanical energy and compressed air for aircraft; said aggregate comprising: compressor means, an output shaft, compressed air line means fed by said compressor means and being operatively connected with load means, said compressor means being a multi-stage compressor including a low-pressure section and a high-pressure section, the compressed air line means branching off downstream of the low-pressure section, branch line means operable to be closed and branching off from the compressed air line means, the branch line means leading to an air turbine means, and connecting means operatively connecting the air turbine means with the output shaft of the gas turbine, said connecting means including transmission means operatively connecting the output shaft of the gas turbine and the output shaft of the air turbine means with an input shaft of a rotating load, said transmission means including at least two gears which mesh with a third gear, the output shaft of the gas turbine and the output shaft of the air turbine means and the input shaft of the load are connected with a respective gear.

Claim 12

A gas turbine aggregate according to claim 9, wherein said rotating load is an electric generator.

Claim 13

A gas turbine aggregate according to claim 9, characterized in that said third gear is connected to the gas turbine output shaft.