Fluid reaction surfaces (i.e. – impellers) – Having positive means for impeller adjustment – Motor bodily rotatable with impeller hub or shaft
Patent
1983-07-06
1985-02-12
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Having positive means for impeller adjustment
Motor bodily rotatable with impeller hub or shaft
416 61, 416168R, B64C 1144, B64C 2768
Patent
active
044988427
ABSTRACT:
An apparatus for adjusting the track of rotor blades through remote control, especially of a helicopter during flight. Each rotor blade has a two-part, lengthwise adjustable control rod with a servomotor which is associated with the supply unit for rotor blade control. A receiving/transmitting part is provided, and a control device (potentiometer) as well as a measuring device are installed in the control rod and are operatively connected with an operating station having an indicator or monitor. The receiving/transmitting part, and the energy source of the servomotor associated with the supply unit for rotor blade control, are integrated in the control rod and are combined with the servomotor to a structural unit and are accommodated in a common housing.
REFERENCES:
patent: 2970367 (1961-02-01), Crump
patent: 3008525 (1961-11-01), Jensen
patent: 3415324 (1968-12-01), Austin
patent: 3515485 (1970-06-01), Frank
patent: 3524354 (1970-08-01), Frank et al.
patent: 3736010 (1973-05-01), Larkin
Fischer Willy G.
Thom Elmar
Henschel Flugzeug-Werke AG
Powell Jr. Everette A.
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