Fuel Injector with Control Piston Moon Sensor.

High precision detection of control piston displacement for fuel injection in internal combustion engines

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Background.

This fuel injector system developed at the University of Birmingham allows high-precision detection of the piston displacement during the injection cycle. This provides precise data about the start, displacement and duration of all injection events. It can be used to accurately monitor fuel consumption information for the driver in real time. It can also be adopted by manufacturers as a diagnostic and characterisation tool. This compact and inexpensive system employs a simple sensor, consisting of a light source, an optical fibre and a detector. Using optical fibre makes the system insensitive to any electromagnetic interferences and very robust in the high-pressure environment of the injector

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