Apparatus for venting the rotor structure of a compressor of a g

Details Apparatus for venting the rotor structure of a compressor of a g Apparatus for venting the rotor structure of a compressor of a g

1989-03-29

1990-05-01

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3983, 415115, F02C 718

Patent

active

049207415

ABSTRACT:
Method of apparatus for venting rotor parts of an axial flows compressor of a gas turbine power plant having an axial diffuser arranged behind the rotor and stator vanes at the last compressor stage. An annular chamber is formed downstream of the last rotor disk between adjacent rotor and stator parts and compressed air downstream of the diffuser is introduced into the chamber. The air in the chamber is divided into two individual streams, one of which is recycled to the compressor through an annular slot between the rotor and guide vanes at the last compressor stage and the other of which is discharged as a stream of leakage air into the secondary air system of the turbine.

REFERENCES:
patent: 3614257 (1971-10-01), Campbell
patent: 4291531 (1981-09-01), Campbell
patent: 4296599 (1981-10-01), Adamson
patent: 4337313 (1969-04-01), Moore
patent: 4657482 (1987-04-01), Neal
patent: 4719747 (1989-01-01), Willkop et al.

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