Brush seal support and vane assembly windage cover

Details Brush seal support and vane assembly windage cover Brush seal support and vane assembly windage cover

1994-04-29

1996-06-04

Lopez, F. Daniel

Rotary kinetic fluid motors or pumps

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

4151745, 277 53, F01D 1100

Patent

active

055226981

ABSTRACT:
A seal support for a brush seal used between a turbine nozzle assembly and a rotor assembly includes a cover plate portion and a support arm. Various construction details are developed that provide a lightweight support for a brush seal and a windage cover. In a particular embodiment, the seal support includes a cover plate portion having circumferentially continuous surfaces to reduce windage losses and a support arm extending inward over a brush seal. In the installed condition, the seal support is positioned to engage the turbine nozzle assembly in an interference fit to dampen the seal support. In another particular embodiment, the support arm has scalloped corners that mate with corners of adjacent seal supports to define an opening. The opening is located to permit cooling fluid to flow through a metering hole and into a cavity to purge the cavity of gas path fluid.

REFERENCES:
patent: 885032 (1908-04-01), De Ferranti
patent: 4218189 (1980-08-01), Pask
patent: 4411594 (1983-10-01), Pellow et al.
patent: 4415309 (1983-11-01), Atterbury
patent: 5114159 (1992-05-01), Baird et al.
patent: 5174582 (1992-12-01), Ferguson
patent: 5181728 (1993-01-01), Stec

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