Rotary kinetic fluid motors or pumps – Including heat insulation or exchange means – Working fluid on at least one side of heat exchange wall
Patent
1990-12-24
1994-01-25
Look, Edward K.
Rotary kinetic fluid motors or pumps
Including heat insulation or exchange means
Working fluid on at least one side of heat exchange wall
415114, 416 95, 244134D, F01D 2502
Patent
active
052810917
ABSTRACT:
An electrical an (10) for the icing-susceptible stator vane stage (16) located in an air inlet section (12) of a turbomachine (not shown). A plurality of stator vanes (20) which are electrically isolated from a plurality of structural shrouds (30, 32) are grouped in one continuous, or a plurality of contiguous arcs about a fanshaft which is generally coincidental with the turbomachine's longitudinal axis (X--X). Low voltage alternating current is provided by an alternator (not shown). This current is directed through a plurality of electrical conductors (26) and is further distributed through each stator vane (20) which is either electrically conductive or employs an electrically conductive medium disposed proximate to an icing susceptible surface of an airfoil contour (21). The electrical current flow, which is generally directed in a radial orientation through each stator vane (20) causes a direct electrically-resistive heating effect to the airfoil contour surfaces (21) of the stator vanes (20).
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patent: 2507018 (1950-05-01), Jewett et al.
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patent: 2709892 (1955-06-01), Martin
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patent: 2997275 (1961-08-01), Bean et al.
patent: 3183975 (1965-05-01), Keen
Dooley Kevin A.
Morris Elwood A.
Lee Michael S.
Look Edward K.
Pratt & Whitney Canada Inc.
Rosenberg Marshall E.
Snyder Troxell K.
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