Cooling device for movable turbine blade collars

Details Cooling device for movable turbine blade collars Cooling device for movable turbine blade collars

1983-01-05

1985-06-11

Yuen, Henry C.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

415116, F01D 1102

Patent

active

045225575

ABSTRACT:
From an external turbine chamber (17), cooling air passages are formed through coils mounted in ball-and-socket fashion (26) in a cavity portion (21) above the stationary turbine nozzle vanes (16) from which it escapes downstream through holes (29) in the platform (15) of the stationary vanes (16) in the form of jets of air parallel to the flow of the main gas flow to create a cooling film on the leading edge (30) of the shroud (9) of the movable blades (10) of the turbine rotor in order to cool these blade shroud (9). An airtight connection between this supply chamber (17) and the main flow is ensured by a flexible seal (32) formed of elastic blades (33) in sections attached to one end of the downstream flange (14) of the turbine nozzle housing (11) and supported at the other end by the turbine ring (5).

REFERENCES:
patent: 3034298 (1962-05-01), White
patent: 3314648 (1967-04-01), Howald
patent: 3652177 (1972-03-01), Loebel
patent: 3975901 (1976-08-01), Hallinger et al.
patent: 4157232 (1979-06-01), Bobo et al.
patent: 4280792 (1981-07-01), Hartel et al.
patent: 4311431 (1982-01-01), Barbeau

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