Temperature responsive open/closed loop switching for lambda con

Details Temperature responsive open/closed loop switching for lambda con Temperature responsive open/closed loop switching for lambda con

1981-06-24

1983-07-12

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

F02B 3300

Patent

active

043924700

ABSTRACT:
A regulating device is described for regulating or adjusting the composition of the operating mixture of an internal combustion engine. When the engine or exhaust gas probe is still cold, the composition of the fuel-air mixture is controlled in an open-loop manner, and upon the attainment of a minimum operating temperature, the closed-loop regulating device for influencing the fuel-air mixture is activated. The activation of the regulating device is effected, when the engine is being operated under a load, after the attainment of a first, low temperature value; during engine idling, this is effected after the attainment of a second, higher temperature value. Via the throttle valve, a switchover is effected between two threshold values of a threshold switch.

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patent: 4153023 (1979-05-01), Asano et al.
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patent: 4183335 (1980-01-01), Asano et al.
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patent: 4208993 (1980-06-01), Peter
patent: 4214563 (1980-07-01), Hosaka
patent: 4279230 (1981-07-01), Bauer et al.
patent: 4338990 (1982-07-01), Dilger et al.

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