Variable jet mixer for improving the performance of a fixed displacement fuel pump
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United States of America Patent
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Issued Date -
Jan 4, 2007
app pub date -
Jun 29, 2006
filing date -
Jul 1, 2005
priority date (Note) -
Abandoned
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Abstract
The invention includes a fuel delivery system for a gas turbine engine in combination with an associated method and machine readable program. The system includes a fixed displacement pump having an inlet portion and a discharge portion, and a mixer operatively associated with the pump. The mixer includes a first inlet in fluid communication with the discharge portion of the pump for receiving a relatively high pressure bypass flow from the pump, a second inlet in fluid communication with a fuel source for receiving a relatively low pressure fuel flow from the fuel source, a mixing chamber within the mixer wherein the relatively high pressure bypass flow from the pump mixes with the relatively low pressure flow from the fuel source to generate an energized fuel mixture, and a discharge in fluid communication with the mixing chamber for directing the energized fuel mixture to the inlet of the pump.
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