Direct fuel injection engine

Details Direct fuel injection engine Direct fuel injection engine

1998-01-28

2000-04-04

Denion, Thomas

Power plants

Internal combustion engine with treatment or handling of...

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

60284, 60277, 60286, 123295, F01N 300

Patent

active

060446420

ABSTRACT:
A direct injection engine including, an ignition plug projected into a combustion chamber, an injector for injecting a fuel directly into the combustion chamber, a catalyst provided in an exhaust gas passage for cleaning an exhaust gas, a temperature senisor for detecting a coolant temperature condition of the catalyst, a control unit, for receiving signals from the sensor to determine that the catalyst is lower than an activation temperature when the engine coolant temperature is lower than a predetermined value, for calculating a fuel injection timing and fuel injection amount from the injector to form a fuel rich combustion gas mixture around the ignition plug equivalent to or richer than a combustion as mixture having a theoretical air fuel ratio and a fuel lean combustion as mixture leaner than the combustion as mixture having the theoretical air fuel ratio in an area surrounding said area of the fuel rich combustion gas mixture when it is determined that the temperature of the catalyst is lower than an activation temperature, and, for producing signals to the injector to inject the fuel at the fuel injection timing. The emission performance of the exhaust gas is improved. The warming up of the catalyst as well as the engine is facilitated.

REFERENCES:
patent: 5357928 (1994-10-01), Ohtsuka
patent: 5642705 (1997-07-01), Morikawa et al.
patent: 5729971 (1998-03-01), Matsuno et al.
patent: 5806482 (1998-09-01), Igarashi et al.

Affiliated with

Also associated with

Rating

Direct fuel injection engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct fuel injection engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct fuel injection engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-354981