Fuel metering unit with a compensated regulator valve in a...

Details Fuel metering unit with a compensated regulator valve in a... Fuel metering unit with a compensated regulator valve in a...

2006-01-24

2006-01-24

Casaregola, Louis J. (Department: 3746)

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

C060S734000

Reexamination Certificate

active

06988356

ABSTRACT:
A fuel metering unit in a turbomachine is connected between a high pressure pump which draws fuel from a fuel tank and a plurality of fuel injectors disposed in a combustion chamber of the turbomachine, the unit comprises a meter which receives the fuel for injection from a regulator valve at a pressure P1and delivers it at a pressure P2to said plurality of injectors via a stop valve, said regulator valve serving to recirculate fuel back to said high pressure pump as a function of the pressure difference between pressures taken directly from the terminals of the meter and injected into two end inlets of the regulator valve.

REFERENCES:
patent: 4493187 (1985-01-01), Hansen
patent: 4817376 (1989-04-01), Brocard et al.
patent: 5715674 (1998-02-01), Reuter et al.
patent: 5896737 (1999-04-01), Dyer
patent: 6321527 (2001-11-01), Dyer et al.
patent: 6328056 (2001-12-01), Kumar et al.
patent: 2001/0022079 (2001-09-01), Blot-Carretero et al.
patent: WO 99/35385 (1999-07-01), None

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