Siemens Aktiengesellschaft

Siemens Akteingesellschaft

Frank Günther

Giuseppe Gaio

Armin Hülfenhaus

Bernd Vonnemann

Gilbert Braun

Hajrudin Ceric

Kai-Uwe Rogos

Edmund Zastrozny

Gerhard Hülsemann

Matthias Beutin

Holger Eisenlohr

Gabriel Jungnickel-Marques

Stefan Wanz

The invention relates to a gas turbine, with a flow path for a hot gas, enclosed by a channel wall with at least one measuring probe, arranged in the channel wall, for determination of a parameter of the hot gas, said measuring probe comprising a temperature-resistant measuring tip in contact with the hot gas and a measuring line, arranged outside the flow path in a protective sleeve. According to the invention, such a gas turbine with a structurally uncomplicated protective sleeve for measuring lines from measuring probes, in which the measuring lines can be economically fitted and securely protected from excessively high operating temperatures, may be achieved, whereby the protective sleeve has a flow of coolant running therethrough which may be taken from a coolant supply connected to the protective sleeve.

Gas turbine with protective sheath for a probe and method for protecting an instrument lead which is laid in a protective sheath

The invention relates to a method for cooling a gas turbine comprising a rotor, said method being carried out after the operation of the gas turbine and whereby the rotor is driven at least intermittently during a cooling phase at a reduced nominal speed. To provide a gas turbine with a reduced down time, a liquid is introduced at least intermittently into the air stream upstream of the compressor during the cooling phase.

Liquid injection in a gas turbine during a cooling down phase

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Duisburg, Germany

Frank Günther