Phase and speed control system

Details Phase and speed control system Phase and speed control system

1978-12-14

1981-01-20

Gill, James J.

Fluid reaction surfaces (i.e., impellers)

With control means responsive to non-cyclic condition...

Plural distinct impellers having related control

60702, 361244, B64C 1150, F02D 2502

Patent

active

042459559

ABSTRACT:
A phase and speed control system for synchronizing the speed and controlling the phase relationship between a pair of aircraft engines, each engine having associated therewith a centrifugal governor, includes a phase comparator circuit which provides a pulse width modulated signal only to the governor coil of the engine having the slower initial rotational velocity. A variable delay on one input of the phase comparator may be adjusted to determine the relative rotational phase relationship between the engines.

REFERENCES:
patent: 1911876 (1933-05-01), Behrens
patent: 3206641 (1965-09-01), Leeson et al.
patent: 3368108 (1968-02-01), Helm
patent: 3689175 (1970-09-01), Hartzell
patent: 3785147 (1974-01-01), Leeson
patent: 4115728 (1978-09-01), Buckner

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