Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Patent
1999-03-04
2000-03-28
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
123527, 123528, 123684, F02D 4114
Patent
active
06041765&
ABSTRACT:
Engine (60) has manifold (62) and includes an air pathway (20) and a fuel line (30) coupled to the manifold (62) for supplying a fuel charge. Fuel line (30) has a controllable valve (40) for regulating fuel flow and a first sensor (38) providing a fuel signal corresponding to mass flow rate of fuel through the fuel line. A second sensor (65) provides a speed signal corresponding to rotational speed of the engine. A third sensor (63) provides a temperature signal corresponding to temperature within the manifold. A fourth sensor (64) provides a pressure signal corresponding to pressure within the manifold. A fifth sensor (76) provides an exhaust signal corresponding to air/fuel ratio for combusted air and fuel in the exhaust pathway. A controller (80) responsive to the controllable valve (40) and sensors (38), (63), (64), (65), and (76) determines an air signal corresponding to the mass flow rate of air through the air pathway (20) as a function of the speed signal, temperature signal, and pressure signal. The controller actuates a valve control signal in accordance with the air signal, fuel signal, and exhaust signal to actuate fuel control valve actuator (42).
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Carroll Matthew S.
Connally John A.
Iwamuro Martin A.
O'Neill Jeff S.
Zigan Jim A.
Argenbright Tony M.
Cummins Engine Company, Inc.
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