I just want to share and confirm an information that i have about using two gas valves (SRV and GCV) in the frame 5 GTs. The first valve SRV (speed regulating valve) regulates the infravalve pressure (between srv and gcv). This pressure depends on the hp speed. WHY? because the amount of fuel in the combustion chamber, how much is opened a valve (the valve stroke) is not enough. Because if the upstream pressure is high and the downstream pressure is low, just a little opening of the valve will let pass lot of fuel. At the contrary if the differential pressure across the valve is little, even if the stroke of the valve is big, not too much fuel will pass. as a result: The amount of fuel depends on how much the valve is opened and the pressure across the valve.
the second valve GCV (gas control valve) Once the pressure upstream is adjusted, the amount of fuel for the combustion chamber will be dependent only on the GCV opening. FSR is the signal 0-100% that indicates the opening of GCV and in consequence the fuel.
So i hope this is the right understanding. Correct me if I'm wrong.
the second valve GCV (gas control valve) Once the pressure upstream is adjusted, the amount of fuel for the combustion chamber will be dependent only on the GCV opening. FSR is the signal 0-100% that indicates the opening of GCV and in consequence the fuel.
So i hope this is the right understanding. Correct me if I'm wrong.