Control System for synchronizing engines

Details Control System for synchronizing engines Control System for synchronizing engines

1974-03-25

1976-10-12

Cohan, Alan

Power plants

System having plural motors or having diverse types of...

Motors intercontrolled responsive to angular speed...

F01B 2100

Patent

active

039849864

ABSTRACT:
A control system for insuring synchronized operation of engines, such as those in a propeller driven aircraft, wherein a master engine dictates the speed and phase condition of a slave engine. The system features a timing generator in connection with the master engine and a speed detector in connection with the slave engine which are interrelated to produce a direct and accurate signal of an overspeed or underspeed, out of phase, condition of the slave engine, when such occurs. This signal is directed through an amplifier computer portion of the control system which embodies a unique dual servo arrangement for selectively routing the signal through different output channels. Low level outputs are modulated for a "soft" correcting influence. In any case, the output of the computer amplifier portion of the control system is directed to provide a representative current value in the windings of an electromagnet embodies in an improved governor operatively related to the slave engine. The level of the current induced in the windings is reflected by an appropriate adjustment of the operating condition of the slave engine.

REFERENCES:
patent: 2501228 (1950-03-01), Light
patent: 2670157 (1954-02-01), Peterson
patent: 2847617 (1958-08-01), Clark, Jr.
patent: 3024610 (1962-03-01), Ulman
patent: 3048743 (1962-08-01), Chillson
patent: 3086154 (1963-04-01), Lowther et al.

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