Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1997-11-17
1999-12-07
Ryznic, John E.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
F01D 302
Patent
active
059972513
ABSTRACT:
A gas turbine engine turbine blade squealer tip includes an airfoil tip cap having an airfoil shape and pressure and suction sides joined together at chordally spaced apart leading and trailing edges of the tip cap. The squealer tip further includes a plurality of squealer ribs extend outward from the tip cap between the leading and trailing edges and substantially parallel channels between the squealer ribs. The squealer ribs and channels may have rectangular cross-sections and may also include a trailing edge rib along a portion of the suction side including the trailing edge and/or a leading edge rib curved around an axially extending portion of the leading edge. The squealer ribs are preferably angled in an axially aft direction from the leading edge on the suction side towards the trailing edge on the pressure side. Channel ribs may be disposed between the squealer ribs and across the channels and may be arranged such that only one of the channel ribs is disposed across each of the channels. The squealer tip may be constructed with no apertures through the tip cap in the channels between squealer ribs.
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General Electric Company
Hess Andrew C.
Ryznic John E.
Young Rodney M.
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