G - Physics – 01 – F
Patent
G - Physics
01
F
73/170
G01F 9/02 (2006.01)
Patent
CA 1064284
ABSTRACT OF THE DISCLOSURE A fuel measuring system for engines of the type having a fuel supply and in which a portion of the fuel fed thereto is unburned and including a return line from the engine arranged to return fuel back to the fuel supply, the fuel measuring system comprising a first measuring device arranged for connection in the fuel supply of an engine and arranged to measure fuel supplied to the engine, a second measuring device arranged for connection in a return line of an engine and arranged to measure fuel supplied to the engine, a second measuring device arranged for connection in a return line of an engine and arranged to measure return fuel flow in the return line, each of the first and second measuring devices having a mov- able member arranged to be operated by the flow of fuel, an electric circuit, a sensor in the circuit for each of the first and second measuring devices sensing movements of the movable members, each of the sensors having a fuel flow measurement output arranged to provide an output which comprises the differential in output of the first and second measuring devices, and a differential output pro- viding an indication of fuel flowing through the first and second measuring devices. Structure for treatment of the fuel may be em- ployed with the system for cooling, removing bubbles, or other treatment functions. Also, structure arranged to compensate for variations in the temperature, gravity, or physical characteristics of fuel may be used in the system, and furthermore, structure for controlling the temperature of the fuel supplied to the engine may be used. An alternating structure for sensing movements of the movable member comprises a magnetic pickup. Another concept of the invention conducts fuel from the measuring device, which may or may not be volumetric, to the engine in bypassing relation to the struc- ture for treating the fuel. In addition, structure may be used for conducting fuel from the fuel supply to the engine in bypassing re- lation to the measuring device.
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