Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1997-07-02
2000-03-28
Argenbright, Tony M.
Power plants
Internal combustion engine with treatment or handling of...
Methods
60284, 60285, 123300, F01N 308, F01N 320
Patent
active
060415916
ABSTRACT:
An exhaust gas heating system for an in-cylinder injection internal combustion engine is disclosed. The system includes a fuel injection device for injecting fuel directly into a combustion chamber of the engine, a spark plug for subjecting fuel, which has been injected as primary fuel from the injection device, to spark ignition such that the primary fuel undergoes primary combustion, an exhaust gas purification device arranged in an exhaust passage of the engine, a purification device temperature computing unit for determining a temperature of the purification device by detecting or estimating the temperature of the purification device, and an additional fuel injection control unit for controlling the injection device when the purification device is found to require activation from the temperature determined by the computing unit, such that an injection of fuel as additional fuel is performed during a flame lasting duration that a flame of the primary combustion remains. The control unit includes an injection timing setting unit for setting an injection start time of the additional fuel on a basis of a parameter which affects the flame lasting duration.
REFERENCES:
patent: 4452040 (1984-06-01), Kobashi
patent: 5207058 (1993-05-01), Sasaki et al.
patent: 5343702 (1994-09-01), Miyajima et al.
patent: 5479775 (1996-01-01), Kraemer et al.
patent: 5642705 (1997-07-01), Morikawa et al.
Ando Hiromitsu
Kaneko Katsunori
Kitada Taizo
Koga Kazuo
Argenbright Tony M.
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
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