Dresser, Inc.

Nuovo Pignone Tecnologie Srl

Francesco Caratelli

Luciano Mei

Massimiliano Mariotti

Alessandro Russo

Alberto Ceccherini

An aeroderivative gas turbine provided with a casing, a compressor including a rotor mounted on a generator shaft supported for rotation in the casing, a high pressure turbine arranged in the casing and with a rotor mounted on the generator shaft for co-rotation with the compressor rotor, a combustor, a power turbine arranged in the casing and including a rotor mounted on a turbine shaft to drive a load, wherein a thermal insulation coating is present to reduce heat dispersion through the casing.

Aeroderivative gas turbine with improved thermal management

The gas turbine engine comprises a gas generator (), comprised of a compressor section (), and a power turbine section (). The power turbine section () comprises a power turbine rotor () supported by a power turbine shaft (), which is mechanically uncoupled from the gas generator (). The power turbine shaft () has an axial cavity () therein, fluidly coupled to a bearing sump () fluidly coupled to the compressor section () and housing at least one bearing () supporting a shaft of the gas generator (). An air venting path () extends from said axial cavity () and leads in a combustion gas flow path () downstream of the power turbine rotor ().

Growing community of inventors

Florence, Italy

Francesco Caratelli