Title:
動翼付きディスク用フランジ及びそのレイアウト
Document Type and Number:
Japanese Patent JP2004514839
Kind Code:
A
Abstract:
The invention concerns a side-plate (10) covering a turbine blade (4) disc (3) enabling its ventilation (27, 29) and whereof the surface (24) facing away from the disc (3) is provided with a labyrinth seal (20) comprising thin cascading elements (23) to provide a leaktightness is characterised in that the blades of the thin cascading elements (23) are axially inclined and axially and radially offset, so as to slew the centre of gravity of the flexible web (14) of the side-plate and promote deformation of the web (14) towards the disc (3) under the effect of centrifugal forces, so as to reinforce the contact of a support bearing (15) with a plate (16) of the disc (3). The hooks whereby the periphery of the web (14) is often assembled to the disc (3) are not required.
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Inventors:
Jean-Baptist Arilla
Michelle Gerard Paul Accor
Jean-Philip Julian Maffle
Song von Sonbourne Khan
Michelle Gerard Paul Accor
Jean-Philip Julian Maffle
Song von Sonbourne Khan
Application Number:
JP2002546862A
Publication Date:
May 20, 2004
Filing Date:
November 29, 2001
Export Citation:
Assignee:
SNECMA MOTEURS
International Classes:
F01D5/02; F01D5/08; F01D5/14; F01D11/02; F02C7/28; F16J15/32; (IPC1-7): F01D11/02; F01D5/02; F01D5/14; F02C7/28; F16J15/32
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Shinya Mitsuhiro
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Shinya Mitsuhiro