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 P1 and delivers it at a pressure P2 to 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.

Abstract: In a turbomachine, there is provided a fuel metering unit having a cylindrical outer sleeve containing a distributor cylinder in which a metering piston can be moved linearly under the action of a control element. The cylindrical sleeve has an inlet orifice for admitting fuel under pressure and at least one outlet orifice for injecting fuel into a combustion chamber of the turbomachine, and the metering piston has an annular gap forming a distribution chamber for the fuel admitted via the inlet orifice and delivered via at least one outlet orifice. According to the invention, the distributor cylinder has a plurality of radial feed orifices for admitting fuel into the distribution chamber and at least a first metering orifice and at least a second metering orifice that are separated by a seal disposed at the periphery of the distributor cylinder.

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 P1 and delivers it at a pressure P2 to 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.

Abstract: In a turbomachine, there is provided a fuel metering unit comprising a cylindrical outer sleeve containing a distributor cylinder in which a metering piston can be moved linearly under the action of a control element. The cylindrical sleeve has an inlet orifice for admitting fuel under pressure and at least one outlet orifice for injecting said fuel into a combustion chamber of the turbomachine, and the metering piston has an annular gap forming a distribution chamber for the fuel admitted via the inlet orifice and delivered via at least one outlet orifice. According to the invention, the distributor cylinder has a plurality of radial feed orifices for admitting fuel into the distribution chamber and at least one first metering orifice and at least one second metering orifice that are separated by sealing means disposed at the periphery of the distributor cylinder.