Device for a non-hermetic seal

Details Device for a non-hermetic seal Device for a non-hermetic seal

2005-08-23

2005-08-23

Peavey, Enoch (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Brush seal

C277S409000

Reexamination Certificate

active

06932347

ABSTRACT:
An arrangement for a non-hermetic seal between a stator and a rotor of a turbomachine in the root region of guide blades belonging to the stator. The arrangement includes a brush sealing ring which is mounted on the guide blades via a spoke centering means and whose bristles together with a rotating sealing surface form a fluid barrier which is permeable in a defined manner. On the sealing side of lower pressure, a supporting ring for the bristles is arranged at a slight distance from the rotating sealing surface, and this supporting ring is integrally connected to the guide blade roots and can be segmented by parting seams. The spoke centering means is permeable to pressure, as a result of which the brush sealing ring is pressure-relieved axially, with the exception of the bristle area between the sealing surface and supporting ring.

REFERENCES:
patent: 4919439 (1990-04-01), Williams
patent: 5114159 (1992-05-01), Baird et al.
patent: 5351971 (1994-10-01), Short
patent: 5715596 (1998-02-01), Bintz
patent: 5884918 (1999-03-01), Basu et al.
patent: 6168162 (2001-01-01), Reluzco et al.
patent: 6173962 (2001-01-01), Morrison et al.
patent: 19628559 (1998-01-01), None
patent: 19720649 (1998-11-01), None
patent: 19803502 (1999-08-01), None
patent: 0778431 (1997-06-01), None
patent: WO 01/13013 (2001-02-01), None

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