Nuovo Pignone Holding S.p.a.

Alessandro Coppola

A system () for sealing and pressurization for the support cushion () of a gas turbine (), wherein the gas turbine () is provided with a compressor (), with which there is associated an inner barrel (), and the support cushion () is in turn provided with seals () relative to the axis of the compressor (), and has at least one pipe () for the venting discharge. The air is fed into the inner barrel (), using the venting piping () of the support cushion (), such as to create a flow of air, which starts from an intermediate stage of the compressor (), and goes towards the inner barrel ().

Sealing system for gas turbine

A process gas extraction device () for an axial compressor, having a high degree of adaptability to changes in the operating characteristics of the compressor; a casing () of the axial compressor is provided with a volute () for collecting process gas and the extraction device () comprises collecting structures () connected to this collecting volute ().

Process gas extraction device for an axial compressor, having a high degree of adaptability to changes in the operating characteristics of the compressor

A flame-passage device ( ) for non-annular gas turbine combustion chambers comprises a tubular body ( ), which is provided with a plurality of cooling holes ( ), for cooling on the swirl-cooling type. The tubular body ( ) is inserted in a flanged pipe ( ), which connects the cases ( ) of two successive combustion chambers ( ), and has a first end ( ) with a cylindrical shape, and a second end ( ) with an oval shape, wherein the second, oval end ( ) is provided with three rings ( ), for anchorage of the corresponding combustion chamber ( ) to the case ( ).

Flame-passage device for non-annular gas turbine combustion chambers

The inner barrel of a turbine has a plurality of holes for receiving compressor discharge air and flowing such air within the inner barrel. A plurality of replaceable nozzles having internal bores of different diameters are selectively screw threaded into the openings of the inner barrel body enabling, with different diameters, a variation in the flow of compressor discharge air entering the inner barrel.

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Prato, Italy

Alessandro Coppola