Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1989-01-30
1990-02-20
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel injection system
123525, 73116, F02P 506
Patent
active
049016989
ABSTRACT:
A method is provided for the control of nitrogen oxide and carbon monoxide emissions from a digester gas engine by the injection of air immediately upstream of the intake valve to form a gradient charge in the combustion chamber having an incombustible portion adjacent the piston and a more concentrated combustible portion adjacent the spark plug, and by the calibration of the spark advance curve of the engine.
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Cross E. Rollins
Los Angeles County Sanitation District
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