Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1993-12-06
1995-04-04
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Combustion products generator
415115, 4151737, F02C 712, F02C 728
Patent
active
054026369
ABSTRACT:
A buffer zone disposed between the TOBI (tangential on-board injector) discharge cavity and the forward rotor cavity of a gas turbine engine serves to maintain the TOBI air relatively pollutant free by judiciously controlling the flow to maintain the pressure of the buffer cavity below the adjacent cavities. The buffer cavity air and the forward rotor cavity air are bled to the dead rim area of the turbine rotor disk through tangentially oriented discharge ports formed in the circumferentially spaced plenums formed in the stator support. Plates on the bottom of some of the plenums block off the flow from the forward rotor cavity and buffer air from the buffer cavity flows through these closed of plenums to maintain the proper pressure relationship amongst the cavities.
REFERENCES:
patent: 3989410 (1976-11-01), Ferrari
patent: 4375891 (1983-03-01), Pask
patent: 4466239 (1984-08-01), Napoli et al.
patent: 4526511 (1985-07-01), Levine
patent: 4730978 (1988-03-01), Baran
patent: 4822244 (1989-04-01), Maier et al.
patent: 5143512 (1992-09-01), Corsmeier et al.
Mize Christopher D.
Pirsig William W.
Vercellone Peter T.
Casaregola Louis J.
Friedland Norman
United Technologies Corporation
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