MATRIX FOR SUPPORTING A CATALYTIC REAGENT FOR THE PURIFICATION OF EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES

Abstract

Abstract Translated from French UNE MATRICE 1, DESTINEE A SUPPORTER UN REACTIF CATALYTIQUE POUR L'EPURATION DES GAZ D'ECHAPPEMENT DE MOTEURS A COMBUSTION INTERNE, EST CONSTITUEE D'UNE OU PLUSIEURS TOLES OU BANDES D'ACIER REFRACTAIRE QUI SONT GARNIES D'UNE MATIERE CATALYTIQUE ET DONT L'UNE AU MOINS EST ONDULEE AFIN DE FORMER DES CANAUX POUR LE PASSAGE DES GAZ D'ECHAPPEMENT. POUR PROVOQUER UN ECOULEMENT AUSSI TURBULENT QUE POSSIBLE DANS LES CANAUX DE LA MATRICE, LA TOLE D'ACIER LISSE 2 ETOU LA TOLE D'ACIER ONDULEE EST DIVISEE EN ETROITS RUBANS DE TOLE 3, 3, 3 QUI SE SUCCEDENT SELON LA DIRECTION DE PASSAGE 7 DES GAZ D'ECHAPPEMENT. LES VEINES GAZEUSES SE DIVISENT AU NIVEAU DE CES RUBANS, PUIS SE MELANGENT AU NIVEAU DES INTERVALLES 4 ENTRE RUBANS, ET AINSI DE SUITE, CE QUI AMELIORE LE RENDEMENT CATALYTIQUE. A MATRIX 1, INTENDED TO SUPPORT A CATALYTIC REAGENT FOR THE PURIFICATION OF EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES, CONSISTS OF ONE OR MORE SHEETS OR BANDS OF REFRACTORY STEEL WHICH ARE LINED WITH A CATALYTIC MATERIAL AND OF WHICH L '' AT LEAST ONE IS CORRUGATED TO FORM CHANNELS FOR THE PASSAGE OF THE EXHAUST GASES. TO CAUSE A FLOW AS TURBULENT AS POSSIBLE IN THE CHANNELS OF THE MATRIX, THE SMOOTH STEEL SHEET 2 AND THE CORRUGATED STEEL SHEET IS DIVIDED INTO NARROW RIBBONS OF SHEET 3, 3, 3 THAT SUCCESS IN THE DIRECTION OF PASSAGE 7 OF EXHAUST GASES. THE GASEOUS VEINS DIVIDE AT THE LEVEL OF THESE RIBBONS, THEN MIX AT THE LEVEL OF INTERVALS 4 BETWEEN RIBBONS, AND SO ON, WHICH IMPROVES CATALYTIC YIELD.

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