A fuel system for a gas turbine engine having a main burner fuel supply line (32a) and a pilot burner fuel supply line (23, 24, 26, 25), a high pressure pump (15) supplying fuel to the main and pilot burner supply lines in use, a throttle valve (32) contro...

According to the present invention there is provided a fuel injection system for a combustion engine, comprising: a fuel metering unit (10) for providing a metered supply of pressurised fuel, at least one first fuel injector (12), at least one second fuel ...

The fuel injection system, consisting of a series of fuel injectors (101 - 10n) in the turbine combustion chamber, fed from a fuel tank (12), has a single gear pump (14) taking fuel from the tank and delivering it to the injectors in identical or variable ...

A gas turbine combustor system comprising plural combustors and plural fuel supply systems realizes a combustion of a lean and uniform pre-mixture in each of the combustors to thereby enable to reduce NOx generation. Flow regulating valves (29,30) are prov...

An hydraulic valve arrangement (34) including a fluid pressure actuable valve (36) which is actuable between a first position in which fluid flow through the fluid pressure actuable valve (36) is prevented and a second position in which fluid flow through ...

The burners (1-24) can be switched between a low and high power operation and are arranged in several groups which are separately controlled. The burners of one groups are evenly distributed over the periphery of the combustion chamber. At least one insert...

A control system is provided for use in controlling fuel supply to at least two sets of burners (18, 22, 26, 28) of an engine. The control system comprises two or more fuel pumps (12a, 12b), each of the pumps (12a, 12b) being driven, in use, by a respectiv...

A fuel delivery system (10) for fuel nozzle staging includes a gas circuit (12) and a fuel circuit (14). Each circuit includes a first manifold (20, 52)) and a second manifold (34, 66). The fuel delivery system delivers a first gas and a first fuel to a ga...