Fuel supply system with leakage detection means
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United States of America Patent
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Apr 18, 2017
Grant Date -
Sep 25, 2014
app pub date -
Aug 21, 2012
filing date -
Nov 4, 2011
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Abstract
A method is provided for detecting a leakage in a fuel supply system of an internal combustion engine. The fuel supply system includes a fuel line system with fuel line sections and a pressure monitoring system with monitoring segments, a set of valves, and a pressure sensor. The method includes detecting a leakage between the fuel line sections and the pressure monitoring system when the set of valves are opened to fluidly connect the monitoring segments. The method also includes performing at least two pressure measurements for at least two selected sets of neighboring monitoring segments for providing pressure behavior information for the selected sets of neighboring monitoring segments. The method further includes comparing the pressure behavior information of the selected sets of neighboring monitoring segments, and identifying a leaking monitoring segment based on the comparison.
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