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Title:
HYBRID ABRADABLE LABYRINTH DAMPER SEAL
Document Type and Number:
WIPO Patent Application WO2004113771
Kind Code:
A3
Abstract:
An apparatus for restricting axial leakage flow along a rotating shaft comprises an abradable labyrinth seal (13) and an adjacent damper seal (14). Normally, the abradable labyrinth is upstream of the damper seal and there is a plurality of labyrinth and damper seal segments adjacent and interleaved along the shaft.

Inventors:
LI JIMING (US)
DE CHOUDHURY PRANABESH (US)
Application Number:
PCT/US2004/019596
Publication Date:
January 26, 2006
Filing Date:
June 18, 2004
Export Citation:
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Assignee:
ELLIOTT CO (US)
LI JIMING (US)
DE CHOUDHURY PRANABESH (US)
International Classes:
F04D29/10; F04D29/66; F16J15/44; (IPC1-7): F16J15/40; F01D11/00; F01D11/02; F16J15/447
Foreign References:
US5597746A1997-01-28
US4925365A1990-05-15
US4820119A1989-04-11
US5794942A1998-08-18
US4545586A1985-10-08
US4257735A1981-03-24
US6039535A2000-03-21
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