Measuring and testing – Internal combustion engine or related engine system or... – Compression
Patent
1990-10-17
1992-09-22
Myracle, Jerry W.
Measuring and testing
Internal combustion engine or related engine system or...
Compression
G01F 902
Patent
active
051487020
ABSTRACT:
Apparatus for measuring the distance traveled by a vehicle per unit quantity of fuel. The apparatus includes a generator for generating a voltage signal proportional to the speed of the vehicle, apparatus for generating a pulse signal proportional to the volume of fuel consumed by the vehicle and a switching device for cycling between open and closed positions in response to the pulse signal. An energy storage device, electrically connected to the generator and the switching device is provided. The energy storage device stores a charge from the voltage signal when the switching device is in the open position and discharges the stored charge when the switching device is in the closed position, thereby generating a fuel consumption signal representing distance traveled per unit quantity of fuel of the vehicle. Also provided is an indicator, electrically connected to the energy storage device for indicating fuel efficiency of the vehicle in response to the fuel consumption signal. The indicator has a dynamic damping for causing it to respond to an average voltage of the fuel consumption signal.
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Hambly, S. C. Miles-per-gallon Meter, Wireless World, vol. 77, No. 1427, May 1971, pp. 218-220.
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