Automatic control of contaminant reduction

Details Automatic control of contaminant reduction Automatic control of contaminant reduction

1985-11-04

1987-05-05

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123489, F02B 300

Patent

active

046623353

ABSTRACT:
In an automatic control method for reduction in the level of contaminants emitted by a gas engine, the automatic control process is orientated in accordance with the reference point at which lambda is equal to unity and enriches the mixture after detecting this point by a certain step. Subsequently the instantaneous probe potential is measured and used by an automatic control circuit as a set point, which so affects the actuator for setting the air ratio that the probe potential is kept constant at this set point. The automatic control system in keeping with the invention reacts immediately in response to a disturbance and does not have to wait until a renewed search for the reference point takes place.

REFERENCES:
patent: 4377143 (1983-03-01), Hamburg
patent: 4401086 (1983-08-01), Miyagi
patent: 4434764 (1984-03-01), Hasegawa
patent: 4445481 (1984-05-01), Aoki

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