Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2011-05-24
2011-05-24
Wiehe, Nathaniel (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C416S189000
Reexamination Certificate
active
07946817
ABSTRACT:
A turbine blade that may include a tip shroud that comprises one or more cooling cavities formed therein. At least one of the cooling cavities may include a plurality of ribs and a first interior wall that generally opposes a second interior wall across the cooling cavity. The plurality of ribs may be configured such that some of the ribs originate at the first interior wall of the cooling cavity and extend toward the second interior wall of the cooling cavity and some of the ribs originate at the second interior wall of the cooling cavity and extend toward the first interior wall of the cooling cavity. The ribs that originate at the first interior wall of the cooling cavity and extend toward the second interior wall of the cooling cavity may be oriented and sized so that at least some of the ribs extend across at least a majority of the distance across the cooling cavity. And the ribs that originate at the second interior wall of the cooling cavity and extend toward the first interior wall of the cooling cavity may be oriented and sized so that at least some of the ribs extend across at least a majority of the distance across the cooling cavity.
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Cusick Ernest G.
General Electric Company
Henderson Mark E.
Landgraff Frank A.
Wiehe Nathaniel
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