Global Patent Index - EP 1308608 A1

EP 1308608 A1 20030507 - Engine muffler

Title (en)

Engine muffler

Title (de)

Schalldämpfer eines Motors

Title (fr)

Système d'échappement d'un moteur

Publication

EP 1308608 A1 20030507 (EN)

Application

EP 01126233 A 20011105

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

F01N 7/00; F01N 3/28; F01N 7/18

IPC 8 full level

F01N 1/08 (2006.01); F01N 3/28 (2006.01); F01N 7/14 (2006.01); F01N 7/18 (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)

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