Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Plural distinct impellers having related control
Patent
1985-09-30
1987-04-21
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Plural distinct impellers having related control
416 35, B64C 1150
Patent
active
046592830
ABSTRACT:
An improved slave propeller SYNCHROPHASER.RTM. device and mode logic for a multi-propeller aircraft is disclosed. A designated master propeller has at least one associated slave propeller which has its speed and phase controlled with respect to the master by initially controlling the speed of the slave propeller to within a selected constant number of RPM of the master so that the master and slave propellers are periodically in phase and then switching to phase control for controlling the speed of the slave propeller in the presence of a phase difference signal having an absolute magnitude less than a selected absolute magnitude. A selected phase difference relationship between the master and the slave may thus be effected with minimum transient effect on the speed of the slave propeller.
REFERENCES:
patent: 2847617 (1958-08-01), Clark
patent: 2877854 (1959-03-01), Brahm
patent: 2878426 (1959-03-01), Preli et al.
patent: 2887621 (1959-05-01), Wilde
patent: 2979135 (1961-04-01), McDonald et al.
patent: 2986223 (1961-05-01), McDonald
patent: 3007529 (1961-11-01), Brockert et al.
patent: 3079531 (1963-02-01), Tugwood
patent: 3479822 (1969-11-01), Nelson et al.
patent: 3689175 (1972-09-01), Hartzell et al.
patent: 4245955 (1981-01-01), Lambertson
Niessen Frank R.
Schneider Roy W.
Maguire, Jr. Francis J.
Powell Jr. Everette A.
United Technologies Corporation
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