Fuel supply device
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United States of America Patent
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Jul 27, 2021
Grant Date -
May 23, 2019
app pub date -
Oct 30, 2018
filing date -
Nov 20, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A fuel supply device includes an inlet pipe, a first end of the inlet pipe configured to be connected to an oil supply port and a second end of the inlet pipe configured to be connected to a fuel tank and an air flow path, an upstream side end of the air flow path configured to be open to the outside and a downstream side end of the air flow path configured to be connected to the fuel tank. The air flow path includes a negative pressure valve configured to move a valve body to open a valve port when the pressure in the fuel tank becomes a negative pressure and an air filter disposed upstream of the negative pressure valve.
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