Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1995-01-03
1997-05-06
Larson, James
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416229A, 416241R, F01D 518, F01D 528
Patent
active
056264623
ABSTRACT:
A double-wall airfoil for applications such as the blades and vanes of gas turbine engines. The double-wall comprises an outer airfoil skin and an inner support wall that are metallurgically bonded to one another. The double-wall contains integral channels for passage of cooling air adjacent to the airfoil skin. Airfoil skin may be a metal alloy skin or a microlaminate structure, including microlaminate composite structures. Microlaminate composites typically have a lower density than that of the material used for the airfoil support wall, and a simplified internal geometry which promote weight reductions in the airfoils and increases in engine operating efficiency.
REFERENCES:
patent: 2641439 (1953-06-01), Williams
patent: 3848307 (1974-11-01), Kydd
patent: 4314007 (1982-02-01), Gessinger
patent: 4629397 (1986-12-01), Schweitzer
patent: 5328331 (1994-07-01), Bunker et al.
Jackson Melvin R.
LaChapelle Donald G.
Rowe Raymond G.
Skelly David W.
Wilson Paul S.
General Electric Company
Larson James
Pittman William H.
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