Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1977-06-15
1979-03-06
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 97R, F01D 508
Patent
active
041428315
ABSTRACT:
Individual coolant passages in the airfoil portion of a liquid-cooled turbine bucket are each provided with a plurality of inwardly protruding circumferentially-extending crimps or rings located at spaced intervals along each passage, each crimp, protrusion or ring extending along the inner periphery in a plane generally perpendicular to the wall of the coolant passage at that location. The main flow of liquid coolant moving in each such individual passage during turbine operation under the combined influence of centrifugal and Coriolis forces is broken up and dispersed over an enlarged area of the interior of the coolant passage upon encountering the protrusions.
REFERENCES:
patent: 1777782 (1930-10-01), Bundy
patent: 3856433 (1974-12-01), Grondahl et al.
Dakin James T.
Darrow Kenneth A.
Muth Myron C.
Cohen Joseph T.
General Electric Company
MaLossi Leo I.
Powell Jr. Everette A.
Watts Charles T.
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