Automobile exhaust purifying system

Details Automobile exhaust purifying system Automobile exhaust purifying system

1985-01-18

1986-03-11

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60285, 123424, F02B 7510

Patent

active

045745889

ABSTRACT:
An exhaust purifying system for an automobile engine including an exhaust system for the emission of exhaust gases to the atmosphere through a catalytic converter. The system comprises a temperature detector for detecting a signal indicative of the temperature of the catalyst, a total engine operating hour detector for detecting a signal indicative of the total operating hour over which the engine has been operated, a spark timing control for retarding the spark timing when the temperature detector detects that the catalyst temperature is lower than a predetermined value, and a retard time corrector for increasing the amount of control to be performed by the spark timing control with increase within a predetermined range detected by the total engine operating hour detector.

REFERENCES:
patent: 3793833 (1974-02-01), Basshuysen
patent: 3813877 (1974-06-01), Hunt
patent: 3984976 (1976-10-01), Nagai
patent: 4442812 (1984-04-01), Mizuno
patent: 4489691 (1984-12-01), Ono

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