Catalyst activating system in multi-cylinder internal combustion

Details Catalyst activating system in multi-cylinder internal combustion Catalyst activating system in multi-cylinder internal combustion

1995-01-25

1996-07-02

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

F02D 700

Patent

active

055312039

ABSTRACT:
In a multi-cylinder internal combustion engine including a plurality of fuel injection valves corresponding to a plurality of cylinders, respectively, and a catalytic converter provided in an exhaust system common to the cylinders, the concentration of oxygen in the exhaust gas from the engine is precisely controlled in accordance with the operational condition of the engine in a low-temperature state of the engine for the prompt activation of the catalyst. When the engine is at a low temperature, the operation of the fuel injection valves is controlled so as to stop the supplying of a fuel into the particular cylinders and, the operation of a valve operating characteristic changing means is controlled to adjust the amounts of air drawn and discharged on the basis of conditions detected by operational condition detecting means and at such low temperature to thereby control the oxygen supplied to the catalyst in the catalytic converter whereby the activity of the catalyst can be controlled.

REFERENCES:
patent: 4165610 (1979-08-01), Iizuka et al.
patent: 4319451 (1982-03-01), Tajima et al.
patent: 4960083 (1990-10-01), Seki et al.
patent: 5233831 (1993-08-01), Hitomi et al.
patent: 5273006 (1993-12-01), Schapertons et al.
patent: 5280770 (1994-01-01), Satou et al.
patent: 5287830 (1994-02-01), Dopson et al.
patent: 5297505 (1994-03-01), Doll et al.
patent: 5297506 (1994-03-01), Reckzugel et al.
patent: 5297516 (1994-03-01), Hara
patent: 5353756 (1994-10-01), Murata et al.
patent: 5398502 (1995-03-01), Watanabe

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