Fuel supply device
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United States of America Patent
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Jul 17, 2018
Grant Date -
Aug 25, 2016
app pub date -
Nov 3, 2014
filing date -
Nov 5, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A fuel supply device includes a fuel pump and a filter case that houses a fuel filter, a fuel pumped by the fuel pump from inside a fuel tank is filtered by the fuel filter and supplied from inside the filter case toward an internal combustion engine, and the filter case includes a case body having a closed bottom shape that forms a housing chamber of the fuel filter, a case cap that covers an aperture of the case body by being joined to the case body, and a residual pressure retention valve that, when the fuel pump is stopped, retains a pressure of the fuel supplied from inside the filter case toward the internal combustion engine, the residual pressure retention valve being disposed at a joint boundary of the case body and the case cap.
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