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Fuel Injection
When used with a liquid fuel, the engine is
supplied through a fuel injection pump coupled to the crankshaft. This positive
displacement pump is on the right hand side of the engine and the volume
of fuel delivered each revolution of the crankshaft can be adjusted by rotating
the outer case of the pump. This adjustment increases or decreases the
stroke of the pump's piston.
The pump is supplied from two graduated
cylinders and the rate of fuel use can be determined in steady state by noting
the volume used in a measured time interval. The pump is also coupled to
a flow gauge that measures the instantaneous fuel flow to the engine. Measure
at the mid-point of the float ball and use the calibration table to determine
the fuel flow rate. |
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