Alerting method for predictive maintenance of a high-pressure pump in an internal combustion engine
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United States of America Patent
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Oct 12, 2021
Grant Date -
Oct 22, 2020
app pub date -
Nov 16, 2018
filing date -
Dec 8, 2017
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Abstract
Disclosed is a method of alerting to the state of a high-pressure pump of an engine including a relief valve, a threshold pressure defining the opening pressure of the relief valve, the pump supplying fuel under pressure to a chamber equipped with a pressure sensor, including the following steps: initializing a computer when the engine is cut off during which cut-off a threshold pressure and a value of a first counter are collected in a memory associated with the computer; measuring the pressure of the fuel in the chamber; incrementing the first counter if the pressure of the fuel in the chamber is above or equal to the threshold pressure; and triggering an alert when the value of the first counter crosses a predetermined threshold.
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