General Electric Company

Timothy Robert Kemp

Shorya Awtar

Frederick George Baily

Kurt Neal Laurer

David Anthony DeAngelis

Malath Ibrahim Arar

George Raymond Hubschmitt

James Giles Eignor

An active retractable seal assembly for use between rotating and non-rotating turbo machinery components including: a plurality of seal rings mounted to the non-rotating component, the seal rings movable toward and away from the rotating component between respective closed and open positions as a function of pressure drop across the seal rings, wherein the seal rings are normally in the open position; and a fluid bypass circuit for directing fluid around one or more of the plurality of seal rings to reduce the pressure drop across the one or more of the seal rings, thereby causing the one or more seal rings to move towards the open position under the action of spring(s) or actuator(s).

Active retractable seal for turbo machinery and related method

The high pressure inlet bleed heat system includes a plurality of tubes which receive heated compressed air from the compressor extraction discharge manifold. The tubes extend into the inlet duct of the compressor, are uniformly spaced one from the other and have a uniform distribution of laterally opening apertures along their lengths in registration with the apertures of next laterally adjacent tubes. The tubes are located downstream of the silencer baffles. By providing choked flow through the apertures and lateral registration of the apertures of adjacent tubes, complete mixing of the heated air with the inlet air vortices behind the silencer baffles is achieved, affording a uniform temperature distribution across the inlet duct with minimum pressure loss. The tubes are constructed to accommodate thermal expansion of the manifold receiving compressor discharge air, the manifold also being supported to accommodate thermal expansion and contraction.

High pressure inlet bleed heat system for the compressor of a turbine

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Greenfield Center, NY, United States of America

Timothy Robert Kemp