1984-02-01

Hot Film Type Fuel Flow Sensor 840135

A NEW TYPE FUEL FLOW SENSOR which is based upon heat transfer principle has been developed for automotive applications. The fuel flow sensor presented in this paper utilizes temperature sensitive resistors made of extremely thin platinum films, and is located in the main passage of a conduit opposite to a nozzle. An extraordinarily wide dynamic range and a quick response have been obtained in comparison with conventional methods. The hot film type fuel flow sensor could allow a new microprocessor to control the engine functions, as well as a fuel consumption or a fuel rate meter.

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