Sealing device for turbo engines and the like

Details Sealing device for turbo engines and the like Sealing device for turbo engines and the like

1989-08-21

1991-06-25

Kwon, John T.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Resilient, flexible, or resiliently biased

277 53, 277 55, F04D 2908

Patent

active

050262521

ABSTRACT:
A sealing device is provided, specifically between engine spaces which fluidically are acted upon by a different pressure, particularly for turbo-engines, such as gas turbo-engines. The sealing device includes at least one brush sealing device non-rotatably anchored at the stator side, the free bristle ends of this brush sealing device being guided in the direction toward an engine rotor. In this case, the brush sealing device is to be constructed as a radial sliding ring sealing device. The free ends of the bristles, while forming a secondary sealing, are guided in a circumferential groove of a sliding ring which is separated at least at one circumferential point, and which, on the side facing away from the bristles, forms a self-centering primary sealing at the engine rotor.

REFERENCES:
patent: Re30206 (1980-02-01), Ferguson et al.
patent: 4358120 (1982-11-01), Moore
patent: 4415309 (1983-11-01), Atterburg
patent: 4541741 (1985-09-01), Woodbridge et al.
patent: 4595207 (1986-06-01), Popp
patent: 4678113 (1987-07-01), Bridges et al.
patent: 4756536 (1988-07-01), Belcher
patent: 4781388 (1988-11-01), Wohrl et al.
European Patent 199,322, Oct. 1986.

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