Engine speed control apparatus

Details Engine speed control apparatus Engine speed control apparatus

1987-12-22

1989-10-17

Lall, Parshotam S.

Boots, shoes, and leggings

60 3924, 60 39281, F02C 942

Patent

active

048751685

ABSTRACT:
Apparatus for synchronizing the spool speed between engines of a multi-engine aircraft having, for each engine, an electronic engine control (EEC) with a speed rating logic portion having an engine speed algorithm for calculating an EEC command speed signal (N sel) and a speed governing loop portion providing for commanding engine fuel flow in dependence on a command speed signal, includes a synchronizer reference unit (SRU) having the same engine speed algorithm used in the EEC, for calculating a independent SRU command speed signal for presentation to all EEC speed governing loops, alternatively with the individual engine EEC command speed signals, in response to operator control.

REFERENCES:
patent: 4258545 (1981-03-01), Slater
patent: 4296601 (1981-10-01), Martin
patent: 4303976 (1981-12-01), Joby
patent: 4410948 (1983-10-01), Doniger

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