Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2003-10-31
2009-10-13
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C416S095000, C416S09600A, C416S19300A, C416S248000, C029S889210
Reexamination Certificate
active
07600972
ABSTRACT:
A method and apparatus for a rotor assembly for gas turbine engine are provided. A first rotor blade including an airfoil, a platform, a shank, an internal cavity, and a dovetail is provided, wherein the airfoil extends radially outward from the platform, which includes a radially outer surface and a radially inner surface, the shank extends radially inward from the platform, and the dovetail extends from the shank, such that the internal cavity is defined by the airfoil, the platform, the shank, and the dovetail. The first rotor blade is coupled to a rotor shaft such that during engine operation, cooling air is channeled from the cavity through an impingement cooling circuit for impingement cooling the first rotor blade platform radially inner surface, and a second rotor blade is coupled to the rotor shaft such that a platform gap is defined between the first and second rotor blade platforms.
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CN App. No. 200410088035.1 First Office Action (Apr. 6, 2007).
Benjamin Edward Durell
Butkiewicz Jeffrey John
Collado Carlos Alberto
Fernandez Emilio
Honkomp Mark Steven
Armstrong Teasdale LLP
General Electric Company
Verdier Christopher
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