Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1994-03-16
1995-10-17
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Methods
60284, 60299, 60303, F01N 328
Patent
active
054579570
ABSTRACT:
A pre-heating arrangement for a catalytic converter of an internal combustion engine having a pre-heating burner operated according to a control and regulation program in the cold-running state of the internal combustion engine after start up. The catalytic converter (2) is formed by two converter elements (4, 5) between which is a converter chamber (6). Hot gases from the burner enter the converter chamber (6) and mix thereat with the exhaust gas from the internal combustion engine and heat the converter element (5) which is second in line in the direction of engine exhaust gas flow. The first converter element (4) on the upstream side, which is subject to impairment due to aging, is by-passed by the hot gases from the burner, which are thereby employed efficiently to rapidly bring the second catalytic converter element (5) up to operating temperature.
REFERENCES:
patent: 3273971 (1966-09-01), Baddorf
patent: 3775064 (1973-11-01), Berger
patent: 3791143 (1974-02-01), Keith
patent: 3854288 (1974-12-01), Heitland
Derwent publication Ltd Abstract of WO92/08883.
Hartel Gunter
Schurfeld Armin
Hart Douglas
Pierburg GmbH
LandOfFree
Method and apparatus for heating a catalytic converter upon cold does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for heating a catalytic converter upon cold, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for heating a catalytic converter upon cold will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-589094