Two-displacement setting variable displacement pump used as...

Details Two-displacement setting variable displacement pump used as... Two-displacement setting variable displacement pump used as...

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 9/28 (2006.01)

Patent

CA 2561273

A fuel delivery system (10) comprises a variable displacement pump (20) for pressurizing fuel. The variable displacement pump has a distinct first pump displacement setting for a first desired mass flow of fuel and a distinct second pump displacement setting for a second desired mass flow of fuel. The variable displacement pump operates in only one of the first and second pump displacement settings. A fuel control (22) with a metering valve downstream of the variable displacement pump selectively regulates fuel delivery.

L'invention concerne un système de distribution (10) de carburant comprenant une pompe (20) à cylindrée variable destinée à un carburant sous pression. Ladite pompe comprend un premier réglage de cylindrée de pompe distinct pour un premier débit massique de carburant désiré et un second réglage de cylindrée de pompe distinct destiné à un second débit massique de carburant désiré. Ladite pompe à cylindrée variable fonctionne uniquement selon l'un des réglages des première et seconde cylindrée de pompe. Une commande de carburant (22) à soupape aval de dosage de pompe à cylindrée variable régule sélectivement la distribution du carburant.

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