Multi-function fuel metering valve

Details Multi-function fuel metering valve Multi-function fuel metering valve

F - Mech Eng,Light,Heat,Weapons

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F02C 9/44 (2006.01) F02C 9/26 (2006.01) F16K 31/12 (2006.01) G05D 7/01 (2006.01)

Patent

CA 1277148

Abstract Multi-function Fuel Metering Valve A hybrid fuel metering system incorporating a multi-function control valve (18) is shown, The valve has a sleeve (96), a piston (98) mounted for translational movement within the sleeve and a spool (100) mounted for translational movement in the piston. The piston has three positions for cooperating with the sleeve; a variable fir t position for metering fuel to an engine (12), a second position for directing fuel to a metering valve (20) and a third position for shutting off flow to the metering valve and to the engine to correct engine overspeed. The spool has two positions a first position to shut off flow to the engine and to the metering valve to shut off the engine and a variable second position to position the piston to meter flow to the engine.

563813

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