EP 1308608 A1 20030507 - Engine muffler
Title (en)
Engine muffler
Title (de)
Schalldämpfer eines Motors
Title (fr)
Système d'échappement d'un moteur
Publication
Application
Priority
EP 01126233 A 20011105
Abstract (en)
In the engine muffler including a first expansion chamber (12) of the exhaust gas having an exhaust gas inlet aperture (11) connecting to an exhaust gas outlet of the engine, a second expansion chamber (14) having an exhaust gas outlet aperture (13), at least one first exhaust gas purifier (15) coated with a catalyst to purify the exhaust gas purifier provided with a plurality of small holes, a wall side of said second expansion chamber (14) to which the engine is not installed is formed to a double-wall construction of walls (14a) and (14b) with a predetermined distance, further, the double-wall is packed with a heat insulating material to improve the purification efficiency, heat insulation and sound elimination. Heated muffler wall is decreased. It is also possible by applying a detachable construction to take out the first exhaust gas purifier outside the wall for replacement or cleaning.
IPC 1-7
IPC 8 full level
F01N 1/08 (2006.01); F01N 3/28 (2006.01); F01N 13/14 (2010.01); F01N 13/18 (2010.01)
CPC (source: EP)
F01N 1/084 (2013.01); F01N 1/089 (2013.01); F01N 3/2885 (2013.01); F01N 13/14 (2013.01); F01N 13/185 (2013.01); F01N 2450/20 (2013.01); F01N 2450/24 (2013.01); F01N 2470/18 (2013.01)
Citation (search report)
- [XY] US 5521339 A 19960528 - DESPAIN MICHAEL S [US], et al
- [Y] WO 9917007 A1 19990408 - ELECTROLUX AB [SE], et al
- [X] US 5857327 A 19990112 - SATO SHIGERU [JP], et al
- [YA] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 1308608 A1 20030507; EP 1308608 B1 20070815; DE 60129989 D1 20070927; DE 60129989 T2 20080515
DOCDB simple family (application)
EP 01126233 A 20011105; DE 60129989 T 20011105