Patent ID: 9470167
Filing Date: 2016-10-18
CPC Classification: F02D,F02M

Claim Text:
1. A system for determining a rate of fuel leakage in a fuel system of an internal combustion engine having a plurality of combustion chambers, the system comprising: a fuel accumulator positioned to receive a fuel flow; a sensor adapted to detect fuel pressure in the fuel accumulator including during a termination event; a plurality of fuel injectors, each fuel injector operable to deliver fuel from the fuel accumulator to one of the plurality of combustion chambers including during the termination event; and a control system adapted to stop the fuel flow to the fuel accumulator to define a beginning of the termination event, to determine a fuel leakage rate in the fuel system based on the fuel pressure detected during the termination event, and to restart the fuel flow to the fuel accumulator to define an end of the termination event.