Internal-combustion engines – Noncompression
Patent
1977-04-26
1978-07-11
Myhre, Charles J.
Internal-combustion engines
Noncompression
123 32EA, 60285, 60276, 123119R, F02B 300, F02B 7510, F02D 502
Patent
active
040994910
ABSTRACT:
In a fuel management system for an internal combustion engine, a system utilizing a stoichiometric gas sensor in the exhaust gas system for supplying an electrical signal to an asymmetrical integrator which controls and maintains any desired air/fuel ratio to the engine. By means of the system, the air/fuel ratio may be maintained slightly richer than stoichiometric for optimum catalytic converter operation. For very lean air/fuel ratios, a delay circuit is used in the system to continue the time the fuel mixture is in a lean condition before the mixture is controllably changed to a rich mixture for sensing by the sensor.
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patent: 4029061 (1977-06-01), Asano
Lall Parshotam S.
Marvin William A.
Myhre Charles J.
The Bendix Corporation
Thornton W. F.
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