Fuel supply systems
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United States of America Patent
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May 18, 2010
Issued Date -
N/A
app pub date -
Jun 24, 2008
filing date -
Jun 25, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A fuel supply system includes a pressure regulator (16) regulating the pressure of fuel supplied from a fuel pump (14). A valve device (18) is associated with the pressure regulator (16) for controlling the pressure of the fuel regulated by the pressure regulator (16). The valve device (18) supplies a part of the fuel as a control fluid to the pressure regulator (16). The part of the fuel supplied from the valve device (18) as the control fluid is not discharged into a fuel tank (12) when the pressure regulator (16) regulates the pressure of the fuel to have a higher value.
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