Compressor with gas sealing chamber

Details Compressor with gas sealing chamber Compressor with gas sealing chamber

1994-09-27

1996-04-09

Look, Edward K.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415116, F01D 1100

Patent

active

055055885

ABSTRACT:
A compressor for a gas turbine includes a gas seal chamber to seal the space between the guide vanes and the rotor vanes from ambient air. A seal casing is positioned at a radially inner side of the inlet casing adjacent to an inlet duct and the rotor blades with an annular gap between the seal casing and the rotor shaft. The annular gap communicates for air flow with the inlet duct. A plurality of ribs are mounted on the one or both of the seal casing and rotor shaft to extend into the annular gap to provide flow resistance. The seal casing defines therewithin a sealing air chamber is connected to the inlet space and the annular gap to permit air from the inlet space to flow to the annular gap and to the inlet duct.

REFERENCES:
patent: 4190397 (1980-02-01), Schilling et al.
patent: 4554789 (1985-11-01), Napoli et al.
patent: 4662821 (1987-05-01), Kervistin et al.
patent: 4668163 (1987-05-01), Kervistin
patent: 4668164 (1987-05-01), Neal et al.
patent: 4721433 (1988-01-01), Plendel et al.
patent: 5028204 (1991-07-01), Kulle et al.

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