Fuel supply system
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United States of America Patent
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Mar 3, 2009
Grant Date -
May 24, 2007
app pub date -
Nov 21, 2005
filing date -
Nov 24, 2004
priority date (Note) -
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Abstract
A fuel supply system for a gas turbine engine comprises a first positive displacement pump (16), a second positive displacement pump (27), said first and second positive displacement pumps (16, 27) being operable simultaneously for the supply of fuel from a low pressure source, and switching valve means (14) downstream of said first positive displacement pump (16) for changing a connection mode between said first and second positive displacement pumps (16, 27) between a series mode and a parallel mode.
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