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1. (WO2014206822) TURBINE AND METHOD FOR DETECTING RUBBING

Pub. No.:    WO/2014/206822    International Application No.:    PCT/EP2014/062787
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Thu Jun 19 01:59:59 CEST 2014
IPC: F01D 11/22
F01D 21/04
Applicants: SIEMENS AKTIENGESELLSCHAFT
Inventors: SEROKA, Alexander
COSTAMAGNA, Raoul
SIEBER, Uwe
Title: TURBINE AND METHOD FOR DETECTING RUBBING
Abstract:
It is intended that a turbine (100), in particular a gas turbine, comprising a rotor (103), a housing (138) spaced from the rotor (103) by a gap (d), and a system for monitoring structure-borne noise, permit rubbing of the rotor and the housing to be localised with the least possible technical complexity. For this purpose, in both a first and second axial region, one or more inwardly directed rubbing teeth (146) of the housing (138) and one or more outwardly directed rubbing edges (148) of the rotor (103) are arranged, wherein the one or more rubbing teeth (146) and the one or more rubbing edges (148) are distributed along the circumference in such a way that contact of the particular rubbing teeth (146) and rubbing edges (148) at a specified rotational frequency of the rotor (103) occurs at a different frequency in the first axial region than in the second axial region.