Importance

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Abstract

An expansion turbine including: a stator, a rotor facing the stator, a short pipe, a shaft rotatably mounted in the short pipe and removably connected to the rotor. The shaft is extractable from the short pipe from the side opposite said rotor. The turbine includes devices removably connecting the rotor to the shaft having a handling portion at a rotor front face. A front static seal, between the rotor and stator, at a radially inner position with respect to an expansion volume between the stator and rotor. The front static seal is mobile between a first position at which a passage is cleared between the stator and the rotor in fluid communication with the expansion volume, and a second position which seals the passage and isolates the expansion volume from a space for access to said handling portion. The front static seal may variable geometry and be an inflatable gasket.

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First Claim