Fluid reaction surfaces (i.e. – impellers) – Interrelated controls for impeller and drive means – Pitch adjustment and throttle regulation with condition...
Patent
1990-12-28
1993-05-11
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Interrelated controls for impeller and drive means
Pitch adjustment and throttle regulation with condition...
416 28, 416 29, 416 30, 416 35, 416 36, 416 37, 416 44, 36443101, B64C 1130
Patent
active
052096408
ABSTRACT:
A pitch control apparatus for a variable pitch propeller for drive connection to an aircraft engine, wherein an optimum rotation number of the engine is calculated in relation to a flight speed of the aircraft, an opening degree of the engine throttle and the density of atmospheric air in flight of the aircraft to maximize a thurst force acting on the aircraft, and wherein a pitch angle of the propeller blade is controlled in such a manner that the rotation number of the engine becomes substantially equal to the optimum rotation number.
REFERENCES:
patent: 2619183 (1952-11-01), Chillson et al.
patent: 2640550 (1953-06-01), Knapp et al.
patent: 2667228 (1954-01-01), Wood et al.
patent: 3589830 (1971-06-01), Mogren et al.
patent: 4958289 (1990-09-01), Sum et al.
patent: 5029091 (1991-07-01), Schneider et al.
patent: 5061212 (1991-10-01), Morgenthaler et al.
Larson James A.
Look Edward K.
Toyota Jidosha & Kabushiki Kaisha
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