F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 59/46 (2006.01) F02M 37/00 (2006.01) F02M 59/44 (2006.01) F02M 69/00 (2006.01)
Patent
CA 2734195
A common regulator valve is provided for a variable displacement pump fuel metering scheme in which the common regulator valve both controls working output to a pump actuator to control displacement of the variable displacement pump and also to control bypass of excess fuel flow. The regulator valve also includes a differential piston which generates a compensation force off of the bypass flow in order to compensate for changes in spring force and flow reaction force at different system pressures and operational states. As a result, errors in the metered fuel flow can be either eliminated or substantially reduced.
Une soupape régulatrice commune est dotée d'un système de dosage de carburant à pompe à débit variable dans lequel la soupape régulatrice commune commande le débit de service destiné à un actionneur de pompe pour commander le déplacement de la pompe à débit variable et pour commander également la dérivation du flux de carburant excédentaire. La soupape régulatrice comprend également un piston différentiel qui génère une force de compensation du flux de dérivation afin de compenser les changements de force de ressort et de force de réaction du flux à différentes pressions et différents états de fonctionnement du système. Par conséquent, des erreurs dans le flux dosé de carburant peuvent être soit éliminées, soit sensiblement réduites.
Baker Carthel C.
Kleckler Joel W.
Tysver John D.
Borden Ladner Gervais Llp
Woodward Inc.
Woodward Governor Company
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