EP 1531271 A2 20050518 - Fuel pump capacity control system for a gas turbine engine
Title (en)
Fuel pump capacity control system for a gas turbine engine
Title (de)
Kraftstoffpumpe mit Fördermengenregelung
Title (fr)
Système de contrôle de capacité d'une pompe à combustible
Publication
Application
Priority
US 70536203 A 20031111
Abstract (en)
A flow control system for controlling a variable displacement pump including a metering valve in fluid communication with the pump for metering an output of the pump. A regulating valve receives a portion of the output of the pump as a bypass flow at a first pressure, wherein an output of the regulating valve is at an interim pressure. The interim pressure is substantially equal to an average of the first pressure and a low reference pressure. An actuator sets a displacement of the pump by acting on a piston connected to a cam ring of the pump. The actuator receives the interim pressure and, thereby, the output of the variable displacement pump is determined. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 1/26 (2006.01); F04B 49/00 (2006.01); F04B 49/12 (2006.01); F04C 14/22 (2006.01); F04C 14/26 (2006.01)
CPC (source: EP US)
F04B 1/07 (2013.01 - EP US); F04B 1/26 (2013.01 - EP US); F04B 49/002 (2013.01 - EP US); F04B 49/12 (2013.01 - EP US); F04C 14/226 (2013.01 - EP US); F04C 14/26 (2013.01 - EP US); F04B 2201/1204 (2013.01 - EP US); F04B 2201/1205 (2013.01 - EP US); F04B 2201/1213 (2013.01 - EP US); F04C 2270/20 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04026703 A 20041110; US 70536203 A 20031111