System for purifying exhaust gas for use in an automobile

Details System for purifying exhaust gas for use in an automobile System for purifying exhaust gas for use in an automobile

1992-09-30

1995-02-14

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

422169, F01N 320

Patent

active

053884051

ABSTRACT:
A system for purifying an exhaust gas for use in an automobile is disclosed which does not externally discharge unburnt hydrocarbons until a catalyst becomes active. An adsorbent is provided upstream of the catalyst. A heat exchanger is disposed between an upstream portion of the adsorbent and a portion between the adsorbent and the catalyst for controlling the elevation of the temperature of the adsorbent and for promoting the elevation of the temperature of the catalyst. The unburnt hydrocarbons are absorbed by the adsorbent in the initial period of time from starting of an engine until the catalyst becomes active. Temperature control is made in such a manner that the unburnt hydrocarbons which are adsorbed by the adsorbent begins to be desorbed therefrom substantially simultaneously with the time when the catalyst begins to function. A large quantity of unburnt hydrocarbons which are emitted from an engine immediately after the starting of the engine are prevented from being externally discharged without being treated.

REFERENCES:
patent: 5125231 (1992-06-01), Patil
patent: 5158753 (1992-10-01), Take
patent: 5184462 (1993-02-01), Schatz

Affiliated with

Also associated with

Rating

System for purifying exhaust gas for use in an automobile does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for purifying exhaust gas for use in an automobile, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for purifying exhaust gas for use in an automobile will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-280525