Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2005-04-05
2005-04-05
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C416S09700R
Reexamination Certificate
active
06874992
ABSTRACT:
An aerofoil blade or vane for a gas turbine engine comprises a body member having an inner end for mounting the blade on a shaft and an outer or tip end. A plurality of cooling passages are formed within the blade, the cooling passages comprising a plurality of inlet passages along which cooling air flows from the base towards the tip region of the blade and a plurality of return passages along which cooling air flows from the tip towards the base region of the blade. At least some of the passages are connected by a common chamber located within the tip region of the blade.
REFERENCES:
patent: 4818178 (1989-04-01), Sibbertsen
patent: 4820123 (1989-04-01), Hall
patent: 6422817 (2002-07-01), Jacala
patent: 0340149 (1989-11-01), None
Look Edward K.
Manelli Denison & Selter PLLC
Rolls-Royce plc
Taltavull W. Warren
White Dwayne J.
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