F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/122
F02C 7/22 (2006.01) F04B 23/12 (2006.01)
Patent
CA 1044026
ABSTRACT OF THE DISCLOSURE A fluid delivery system and, more particularly, a system for de- livering fuel to an aircraft engine. A positive displacement pump delivers fuel to the engine and is supplied by an ejector boost pump connected to a fuel tank and having a nozzle supplied with fuel delivered by the fuel pump for drawing fuel from the tank and increasing the pressure of the fuel prior to delivery through interstage components to the inlet of the fuel pump. Valve means responsive to the pressure differential across the nozzle of the ejec- tor boost pump operates to maintain a uniform rate of fuel flow through the nozzle. In certain embodiments of the fluid delivery system, the fuel pump is provided with auxiliary inlets for delivery of fuel to pumping chambers out of communication with the main inlet of the pump for improved operation of the fuel pump and avoidance of problems encountered from the presence of vapor in the fuel.
257623
Schaefer John G.
Whitesel Terry L.
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