Title: Electronic fuel control for a gas turbine engine

Abstract: An electronic fuel control for a gas turbine with a power turbine engine includes a power turbine actual speed transducer, a power turbine desired speed control and a control circuit including an output difference amplifier the output of which determines the quantity of fuel supplied to the engine. To guard against failure of the transducer a "high wins" gate receives signals from the transducer and the amplifier and a second difference amplifier has its two inputs connected to the gate and to the transducer via an attenuator so that in normal running conditions the output of the output amplifier is less than that of the transducer but more than that of the difference amplifier.

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Inventors: Maker, Paul Manwaring (Loughton, EN)

Application Number: 593300
Filing Date: 1975-07-07
Publication_date: 1976-09-28
Assignee: Lucas Industries Limited (Birmingham, EN)
Primary Class(es): 60/791 60/39.281, 700/78
Other Classes:
US Patent Ref:

3174529	Mar, 1965	Grosselfinger	60/39.
3295317	Jan, 1967	Blackaby	60/39.
3421317	Jan, 1969	Bedford	60/39.
3472027	Oct, 1969	Snow	60/39.
3523423	Aug, 1970	Young	60/39.
3686859	Aug, 1972	White	60/39.
3780527	Dec, 1973	Lewis	60/39.

Other Refs:
Primary Examiner: Gordon, Clarence R.
Assistant Examiner:
Attorney: