Nozzle for a coolable rotor blade

Details Nozzle for a coolable rotor blade Nozzle for a coolable rotor blade

1981-04-01

1984-06-12

Hornsby, Harvey C.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

Changing state mass within or fluid flow through working...

415DIG1, 415175, F01D 518, F01D 2518

Patent

active

044538880

ABSTRACT:
A coolable rotor stage assembly 14 of the turbine 10 of an axial flow gas turbine engine is disclosed. A cavity 18 for purge air is adjacent the rotor disk 22. A nozzle 34 for metering the flow of cooling air through the rotor blade, for forming a jet of high velocity air and for directing the cooling air from the root of the rotor blade inhibits recirculation, retards formation of the radial pumping boundary layer, decreases the thickness t of the radial pumping boundary layer and does work on the rotor blade.

REFERENCES:
patent: 2858101 (1958-10-01), Alford
patent: 2945671 (1960-07-01), Petrie
patent: 3043561 (1962-07-01), Scheper, Jr.
patent: 3501249 (1970-03-01), Scalzo et al.
patent: 3572966 (1971-03-01), Borden et al.
patent: 3635586 (1972-01-01), Kent et al.
patent: 3658439 (1972-04-01), Kydd
patent: 3706508 (1972-12-01), Mozkowitz et al.
patent: 3736011 (1973-05-01), Kydd
patent: 3816022 (1974-06-01), Day
patent: 3856430 (1974-12-01), Langham
patent: 4260336 (1981-04-01), Johnson
Prior art cited as Figures A and B in the applicants disclosure statement filed 7-13-81.

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