EP 0563882 A1 19931006 - Method for catalytically cleaning the exhaust gas of an internal combustion engine and exhaust gas system.
Title (en)
Method for catalytically cleaning the exhaust gas of an internal combustion engine and exhaust gas system.
Title (de)
Verfahren zur katalytischen Reinigung der Abgase einer Brennkraftmaschine und Abgasvorrichtung.
Title (fr)
Méthode de traitement catalytique des gaz d'échappement d'un moteur à combustion interne et dispositif d'échappement.
Publication
Application
Priority
JP 10252592 A 19920330
Abstract (en)
The present invention relates to a method for catalytically cleaning the exhaust gas of an internal combustion engine and an exhaust gas system wherein a multi-staged cleaning of exhaust gas takes place by means of that the total flow of exhaust gas is sub-divided into a plurality of partial flows of exhaust gas, at least in two flows of exhaust gas, fed through a catalytic converter means in successively varying amounts of volume through different parts of the catalytic converter means. In this way cleaning activity of the catalytic converter means can be improved and more even heat distribution across the catalytic converter means can be obtained and a small sized construction of a muffler of the exhaust gas system is possible. <IMAGE>
IPC 1-7
IPC 8 full level
F01N 1/08 (2006.01); F01N 3/20 (2006.01); F01N 3/24 (2006.01); F01N 3/28 (2006.01)
CPC (source: EP)
F01N 1/084 (2013.01); F01N 3/2053 (2013.01); F01N 3/2839 (2013.01); F01N 3/2885 (2013.01); F01N 2490/06 (2013.01)
Citation (search report)
- [A] US 4495153 A 19850122 - MIDORIKAWA MINORU [JP]
- [A] DE 4002774 A1 19910801 - BOYSEN FRIEDRICH GMBH CO KG [DE]
- [A] PATENT ABSTRACTS OF JAPAN vol. 16, no. 282 (M-1269)23 June 1992 & JP-A-04 072414 ( YAMAHA MOTOR CO LTD ) 6 March 1992
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 0563882 A1 19931006; EP 0563882 B1 19970910; DE 69313695 D1 19971016; DE 69313695 T2 19980108; JP 3200772 B2 20010820; JP H05280329 A 19931026
DOCDB simple family (application)
EP 93105250 A 19930330; DE 69313695 T 19930330; JP 10252592 A 19920330