Title:
TURBO MACHINE
Document Type and Number:
WIPO Patent Application WO/2014/038079
Kind Code:
A1
Abstract:
In order to provide a turbo machine that reduces the unstable fluid dynamic force on a labyrinth seal by reducing pressure imbalance inside a chamber and prevents unstable vibration of a rotor, the turbo machine (1) has the rotor (3) having a rotating impeller (2), a stator holding the rotor (3) and forming a flowpath, and a comb-tooth structured labyrinth seal (6) that reduces fluid leakage between the stator and the rotor (3), and is characterized by having a second floor surface configured by a pressure-receiving member (10) capable of displacing in the rotor radial direction, upon a floor surface of the chamber (9) formed between comb teeth (7) of the labyrinth seal (6).
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Inventors:
YAMAGUCHI KAZUYUKI (JP)
MAGARA YOHEI (JP)
YOSHIDA TOYOMI (JP)
ENDO AKIRA (JP)
NISHIJIMA NORIYO (JP)
KOBAYASHI KATSUTOSHI (JP)
MAGARA YOHEI (JP)
YOSHIDA TOYOMI (JP)
ENDO AKIRA (JP)
NISHIJIMA NORIYO (JP)
KOBAYASHI KATSUTOSHI (JP)
Application Number:
PCT/JP2012/073011
Publication Date:
March 13, 2014
Filing Date:
September 10, 2012
Export Citation:
Assignee:
HITACHI LTD (JP)
YAMAGUCHI KAZUYUKI (JP)
MAGARA YOHEI (JP)
YOSHIDA TOYOMI (JP)
ENDO AKIRA (JP)
NISHIJIMA NORIYO (JP)
KOBAYASHI KATSUTOSHI (JP)
YAMAGUCHI KAZUYUKI (JP)
MAGARA YOHEI (JP)
YOSHIDA TOYOMI (JP)
ENDO AKIRA (JP)
NISHIJIMA NORIYO (JP)
KOBAYASHI KATSUTOSHI (JP)
International Classes:
F01D11/02
Foreign References:
| US20100078893A1 | 2010-04-01 | |||
| JP2005291205A | 2005-10-20 | |||
| JP2005214144A | 2005-08-11 | |||
| US20110020114A1 | 2011-01-27 | |||
| US20070069477A1 | 2007-03-29 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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