Gaseous fuel supply device
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United States of America Patent
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Feb 13, 2018
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N/A
app pub date -
Nov 26, 2014
filing date -
Nov 28, 2013
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Abstract
To exert combustion control using a CNG injector, a first cutoff valve is opened. On condition that the first cutoff valve is opened, the presence or absence of fuel leakage in a high-pressure side path is determined based on a drop in a detected value of a pressure in the high-pressure side path (high-pressure side detected value PH). Inserting a nozzle for CNG filling into a filling opening causes a phenomenon where the high-pressure side detected value PH rises once and then drops. If the high-pressure side detected value PH rises at a specified rate or more, a CPU stops determination as to the presence or absence of a fuel leakage malfunction for a specified period of time.
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