Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1998-11-06
2000-08-22
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 95, 416241R, 298897, 295272, 415178, F01D 518
Patent
active
061062316
ABSTRACT:
An article comprising an airfoil surface is provided with a thermal insulating outer layer on at least one region, but not all, of the airfoil surface. The region is selected from the airfoil surface which has been observed to experience more strenuous environmental operating conditions during service operation than the airfoil surface outside of the region. In one form, the thermal insulating outer layer is applied to at least one region of each of a plurality of airfoil surfaces. Each airfoil surface is disposed about an axis of rotation with the region of each airfoil surface facing generally outwardly from the axis of rotation and from each other. The airfoil surfaces are rotated about the axis of rotation while a thermal insulating material contacts at least the regions.
REFERENCES:
patent: 5209645 (1993-05-01), Kojima et al.
patent: 5733102 (1998-03-01), Lee et al.
Brainch Gulcharan S.
Clarke Jonathan P.
Danowski Michael J.
Wustman Roger D.
General Electric Company
Hess Andrew C.
Look Edward K.
McDowell Liam
Young Rodney M.
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