Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2007-05-15
2007-05-15
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...
C416S22300B
Reexamination Certificate
active
11010688
ABSTRACT:
A turbine stage includes a row of airfoils and their platforms spaced laterally apart to define flow passages therebetween. Each airfoil is integrally joined to its platform at a corresponding arcuate fillet which is larger along the pressure side of the airfoil and smaller along the suction side as it varies in size around the leading edge. A film cooling root hole is disposed in the root fillet in flow communication with an internal cooling circuit in the airfoil for discharging cooling air along the fillet for energizing boundary layer flow of combustion gases flowing through the flow passages during operation.
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Patent Abstract of Japan, vol. 007, No. 112 (M-215), May 17, 1983, European Patent Office, publication No. 58032903, pub. Date Feb. 26, 1983, single page.
Andes William S.
Conte Francis L.
General Electric Company
Hanan Devin
Look Edward K.
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