FUEL SUPPLY SYSTEM WITH COMBINED METERING AND SHUTOFF VALVE

A metering valve spool (112) controls a volume of fuel passing through a metering valve (104). The spool (112) has a forward face. A line from a pump has a connection into a chamber. The face of the metering valve spool (112) may contact a seal (116) to block flow into the chamber. The metering valv...

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Bibliographische Detailangaben
Hauptverfasser:	RICKIS, Aaron F, HAUGSJAAHABINK, Todd, REUTER, Charles E
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	A metering valve spool (112) controls a volume of fuel passing through a metering valve (104). The spool (112) has a forward face. A line from a pump has a connection into a chamber. The face of the metering valve spool (112) may contact a seal (116) to block flow into the chamber. The metering valve (104) is connected to a pressure regulating valve. The pressure regulating valve is to be connected to a combustor. A control selectively moves the metering valve spool (112) to control a volume of fuel delivered from the chamber to the pressure regulating valve. The control is also programmed to move the metering valve spool (112) to a position where a forward face of the metering valve spool (112) seals on the seal (116) to block flow from the pump from reaching the pressure regulating valve, and also from reaching the tap. A gas turbine engine is also disclosed.