Device for estimating the mass flow of fuel

Details Device for estimating the mass flow of fuel Device for estimating the mass flow of fuel

2006-09-12

2006-09-12

Wachsman, Hal (Department: 2857)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Fluid or fluid flow measurement

C702S045000, C073S001160, C073S001340, C700S282000

Reexamination Certificate

active

07107169

ABSTRACT:
The invention relates to a device for determining a measurement of mass flow of fluid for a combustion chamber comprising a fluid metering device and a means of measuring the position of the metering device being measured. This device comprises:a mass flow meter,a hybridisation device for determining an actual mass flow of fluid comprising:a first input comprising a set-point value (WF set-point, Xset-point),a prediction unit (26) capable of determining, from the first input and variables of state comprising the actual mass flow (WF actual) and parametric unknowns (IP), estimated values (^WF flow meter, ^Xmetering device),a second input comprising the measured position of the metering device (Xmetering device) and the measured mass flow of fluid (WF flow meter),a calculator of residues (30, 22, 20) for determining a first residue (Rmetering device) between the measured position of the metering device and the estimated position of the metering device and a second residue (Rflow meter) between the measured mass flow of fluid and the estimated mass flow of fluid,a correction unit (24) for determining, from the first and second residues corrections capable of being applied to variables of state (WF actual, IP).

REFERENCES:
patent: 4593523 (1986-06-01), Hawes
patent: 5303541 (1994-04-01), Goff et al.
patent: 6148601 (2000-11-01), Jones et al.
patent: 2005/0284235 (2005-12-01), Kielb et al.
patent: 2195448 (1988-04-01), None

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