Fuel Filter Clogging Detection Device in Fuel Supply Circuit, and Working Machine
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United States of America Patent
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Issued Date -
Jul 21, 2016
app pub date -
Sep 2, 2014
filing date -
Sep 4, 2013
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Abandoned
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Abstract
A fuel filter clogging detection device detects clogging of a fuel filter in a fuel supply circuit and issues a warning. The device includes an atmospheric pressure sensor detecting atmospheric pressure, a filter outlet pressure sensor detecting outlet side pressure of the fuel filter, and a control unit calculating differential pressure between the atmospheric pressure and the outlet side pressure and obtaining a degree of clogging of the fuel filter from the differential pressure so as to output an alarm signal when the degree of clogging exceeds a threshold.
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