EP 0880642 B1 19991222 - DEVICE FOR THE CLEANING OF EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES
Title (en)
DEVICE FOR THE CLEANING OF EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES
Title (de)
VORRICHTUNG ZUM REINIGEN VON ABGASEN AUS VERBRENNUNGSKRAFTMASCHINEN
Title (fr)
DISPOSITIF DE PURIFICATION DES GAZ D'ECHAPPEMENT D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- AT 9700024 W 19970210
- AT 24696 A 19960212
Abstract (en)
[origin: WO9730274A1] The invention relates to a device for the cleaning of exhaust gases from internal combustion engines, in particular a diesel exhaust soot filter. Said device has a discharge electrode (8), a counterelectrode (28) opposite thereto for electrical charging of the exhaust gas components, a ceramic structure (1) with a circular cross-section and ducts (20) extending therethrough in the direction of flow, and an internal electrode (5) at high voltage. This electrode is arranged on the inner cylinder wall (21) of the ceramic structure (1) and creates an electrical field at right angles to the ducts (20) passing through said ceramic structure. The soot particles are deposited and oxidised on the walls of the ducts (20), and a separation is provided to prevent flow through the hollow internal space (22) of the ceramic structure (1). To prevent the formation of conductive soot bridges between high-voltage-conducting components and earth the separation of the hollow internal space (22) of the ceramic structure (1) is an electrical insulator, preferably a ceramic stopper (4), arranged at the inlet side of the gas stream.
IPC 1-7
IPC 8 full level
B03C 3/62 (2006.01); B03C 3/70 (2006.01); F01N 3/01 (2006.01); F01N 3/02 (2006.01); F01N 3/027 (2006.01); F01N 3/021 (2006.01)
CPC (source: EP)
B03C 3/62 (2013.01); B03C 3/70 (2013.01); F01N 3/01 (2013.01); F01N 3/0217 (2013.01); F01N 3/0275 (2013.01); B03C 2201/12 (2013.01); B03C 2201/30 (2013.01); F01N 2330/06 (2013.01)
Designated contracting state (EPC)
AT DE ES FR GB IT SE
DOCDB simple family (publication)
WO 9730274 A1 19970821; AT A24696 A 20001015; AT E188015 T1 20000115; AU 1711997 A 19970902; BR 9707497 A 20000104; CA 2246353 A1 19970821; CZ 254898 A3 19981111; DE 59700888 D1 20000127; EP 0880642 A1 19981202; EP 0880642 B1 19991222; HU P9901677 A2 19990830; HU P9901677 A3 20000328; JP 2000504805 A 20000418; JP 4005137 B2 20071107; PL 328241 A1 19990118
DOCDB simple family (application)
AT 9700024 W 19970210; AT 24696 A 19960212; AT 97904288 T 19970210; AU 1711997 A 19970210; BR 9707497 A 19970210; CA 2246353 A 19970210; CZ 254898 A 19970210; DE 59700888 T 19970210; EP 97904288 A 19970210; HU P9901677 A 19970210; JP 52881497 A 19970210; PL 32824197 A 19970210