Electrical anti-icer for a turbomachine

Rotary kinetic fluid motors or pumps – Including heat insulation or exchange means – Working fluid on at least one side of heat exchange wall

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Details

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).

REFERENCES:
patent: 1807359 (1931-05-01), Waters
patent: 2494625 (1950-01-01), Martin
patent: 2507018 (1950-05-01), Jewett et al.
patent: 2540472 (1951-02-01), Boyd et al.
patent: 2695146 (1954-11-01), De Witt
patent: 2709892 (1955-06-01), Martin
patent: 2754398 (1956-07-01), Rainbow
patent: 2997275 (1961-08-01), Bean et al.
patent: 3183975 (1965-05-01), Keen

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