Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1987-03-12
1988-06-14
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Fuel injection system
731182, 7386102, F02M 5100
Patent
active
047504641
ABSTRACT:
A mass flow fuel injection control system is provided for an internal combustion engine and measures mass and flow velocity of combustion air. The length of fuel injection pulses is determined by .sqroot.P.sub.D P.sub.A /T, where P.sub.D is the air pressure drop produced by a venturi (32), P.sub.A is absolute air pressure, and T is air temperature. The system directly determines fuel requirements from the air mass flow and automatically self-adjusts and tracks such requirements from engine to engine or with modifications to the engine, without a preprogrammed look-up table according to throttle setting, and eliminates the need for a throttle position sensor.
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Brunswick Corporation
Wolfe Willis R.
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