Fuel supply device
Number of patents in Portfolio can not be more than 2000
United States of America
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Jun 11, 2024
Grant Date -
N/A
app pub date -
Dec 27, 2023
filing date -
Dec 27, 2023
priority date (Note) -
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Abstract
Upon receiving a request to stop an internal combustion engine, processing circuitry of a fuel supply device opens a relief valve by increasing a fuel pressure in a delivery pipe to a specified pressure or greater before stopping the internal combustion engine. The processing circuitry determines whether a fuel pressure sensor is normal based on a result of comparison between a fuel pressure in the delivery pipe detected by the fuel pressure sensor and a fuel pressure determination value after the fuel pressure in the delivery pipe starts to decrease as a result of opening the relief valve.
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