Air cooled hollow vane construction

Details Air cooled hollow vane construction Air cooled hollow vane construction

1980-11-10

1982-01-26

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

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

415116, F01D 518, F01D 902

Patent

active

043126243

ABSTRACT:
To improve cooling and simplify construction the cavity of a hollow airfoil is divided into separate longitudinally extending pressure and suction side compartments each of which extend from the leading edge to the trailing edge portion of the airfoil for providing cooling air to their respective sides of the airfoil. Air enters one compartment from one end of the airfoil and is closed at its opposite end. Air enters the other compartment from the end opposite the inlet end of the first compartment and is closed at its other end. In a preferred embodiment a tubular insert provides the dividing wall between the compartments and forms a plenum within the suction side compartment from which cooling air is directed against the suction-side wall through impingement cooling holes in the insert.

REFERENCES:
patent: 3628880 (1971-12-01), Smuland et al.
patent: 3799696 (1974-03-01), Redman
patent: 3930748 (1976-01-01), Redman et al.
patent: 3950114 (1976-04-01), Helms
patent: 4063851 (1977-12-01), Weldon
patent: 4135855 (1979-01-01), Peill
patent: 4162136 (1979-07-01), Parkes

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