Fuel metering unit

Details Fuel metering unit Fuel metering unit

2008-03-25

2008-03-25

Hepperle, Stephen M. (Department: 3753)

Power plants

Combustion products used as motive fluid

Combustion products generator

C123S1980DA, C137S002000, C137S110000, C137S545000, C137S554000

Reexamination Certificate

active

11088971

ABSTRACT:
A fuel metering unit10for an aircraft. The unit10having an inlet leg12within which fuel flows, which leg12splits into controlling legs18, 20which rejoin downstream to form an outlet leg30.Shut off valves28, 30are provided respectively in the controlling leg18and outlet leg30.Fuel flow through the legs18, 20is compared, and if an unexpected relative comparison is made, fuel flow through one or both of the legs18, 20can be stopped using respectively either of the valves28, 32.

REFERENCES:
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patent: 3790931 (1974-02-01), Leveraus
patent: 4326376 (1982-04-01), Stearns et al.
patent: 4549563 (1985-10-01), Monnier
patent: 4656827 (1987-04-01), Puillet
patent: 4827714 (1989-05-01), Miles
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patent: 5284020 (1994-02-01), Brocard et al.
patent: 6357219 (2002-03-01), Dudd et al.
patent: 6401446 (2002-06-01), Gibbons
patent: 01 286 299 (1988-10-01), None

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