EP 0020766 A1 19810107 - EXHAUST GAS CLEANING SYSTEM FOR DIESEL ENGINES.
Title (en)
EXHAUST GAS CLEANING SYSTEM FOR DIESEL ENGINES.
Title (de)
VORRICHTUNG ZUM REINIGEN DER AUSPUFFGASE EINES DIESELMOTORS.
Title (fr)
DISPOSITIF DE PURIFICATION DES GAZ D'ECHAPPEMENT D'UN MOTEUR DIESEL.
Publication
Application
Priority
- JP 3580179 A 19790326
- JP 9213278 A 19780727
Abstract (en)
This device for purifying the exhaust gas of a diesel engine incorporates heat resisting filters (6, 7) provided at the upstream side of a catalytic layer (9) to completely remove black smoke particles in the exhaust gas by means of the filtering operation of the filters (6, 7) to thereby prevent the adverse effect caused by the particles adhered onto the catalytic layer (9). The heat resisting filters (6, 7) can be easily recovered by burning and removing the adhered black smoke particles. Further, this device also incorporates a heat resisting filter (24) and a catalytic layer (26) formed in hollow cylindrical shape and laminated together. A high pressure burner (28) or a negative pressure generator (33) are provided for blowing hot gas into the filter (24) when recovering the filters. The heat resisting filter (24) and the catalytic layer (26) are contained within a case (21) in a compact manner.
Abstract (fr)
Ce dispositif de purification des gaz d'echappement d'un moteur diesel comprend des filtres resistants a la chaleur (6, 7) montes cote amont d'une couche catalytique (9) pour enlever completement les particules de fumee noire dans les gaz d'echappement par filtrage a l'aide des filtres (6, 7) pour empecher l'effet defavorable cause par les particules collees sur la couche catalytique (9). Les filtres a resistance thermique (6, 7) peuvent etre facilement recuperes en brulant et enlevant les particules de fumee noire collee. En outre, ce dispositif comprend egalement un filtre resistant a la chaleur (24) et une couche catalytique (26) ayant une forme cylindrique creuse et lamines l'un sur l'autre. Un bruleur a haute pression (28) ou un generateur de pression negative (33) sont prevus pour envoyer du gaz chaud dans le filtre (24) lors de la recuperation des filtres. Le filtre resistant a la chaleur (24) et la couche catalytique (26) sont contenus dans une enveloppe (21) de facon compacte.
IPC 1-7
IPC 8 full level
F01N 3/02 (2006.01); B01D 53/34 (2006.01); F01N 3/025 (2006.01); F01N 3/032 (2006.01); F01N 3/035 (2006.01); F01N 3/28 (2006.01); F23G 7/06 (2006.01); F23J 15/00 (2006.01); F01N 13/02 (2010.01); F01N 13/04 (2010.01)
CPC (source: EP)
F01N 3/0217 (2013.01); F01N 3/025 (2013.01); F01N 3/032 (2013.01); F01N 3/035 (2013.01); F01N 3/2882 (2013.01); F01N 13/009 (2014.06); F01N 13/011 (2014.06); F01N 2250/02 (2013.01); F01N 2250/04 (2013.01); F01N 2250/06 (2013.01)
Designated contracting state (EPC)
FR
DOCDB simple family (publication)
WO 8000362 A1 19800306; DE 2953010 C2 19921015; DE 2953010 T1 19810409; EP 0020766 A1 19810107; EP 0020766 A4 19800929; EP 0020766 B1 19830302; GB 2040182 A 19800828; GB 2040182 B 19830112; SE 441027 B 19850902; SE 8001507 L 19800227
DOCDB simple family (application)
JP 7900194 W 19790726; DE 2953010 T 19790726; EP 79900882 A 19800311; GB 8006659 A 19790726; SE 8001507 A 19800227