Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1990-12-18
1992-10-20
Denion, Thomas E.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 95, B63H 114, B63H 702
Patent
active
051565269
ABSTRACT:
A rotor blade such as a turbine rotor blade for a jet engine. The airfoil blade portion of the rotor blade has a plurality of longitudinally extending coolant passageways preferably interconnected to define a serpentine coolant circuit. Each passageway has a wedge shape including a base and an opposing tapered tip. For passageways channeling coolant from the blade root to the blade tip, the bases are positioned proximate the pressure side of the airfoil blade and the tapered tip is positioned proximate the suction side of the airfoil blade to take advantage of the Coriolis force acting on the coolant in the passageway of the rotating blade to improve overall heat transfer effectiveness.
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"Heat Transfer in Rotating Passages with Smooth Walls and Radial Outward Flow" by J. H. Wagner, B. V. Johnson and T. J. Hajek, presented at the Gas Turbine and Aeroengine Congress and Exposition on Jun. 4-8, 1989, Toronto, Canada.
"Heat Transfer in Rotating Serpentine Passages with Smooth Walls", by J. H. Wagner, B. V. Johnson and F. C. Kopper, presented at the Gas Turbine and Aeroengine Congress and Exposition on Jun. 11-14, Brussels, Belgium.
Lee Ching-Pang
Thomas, Jr. Theodore T.
Denion Thomas E.
Erickson Douglas E.
General Electric Company
Squillaro Jerome C.
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