EP 0879937 A1 19981125 - Silencer group for muffler of internal combustion engines
Title (en)
Silencer group for muffler of internal combustion engines
Title (de)
Schalldämpfer für Brennkraftmaschine
Title (fr)
Silencieux pour moteurs à combustion interne
Publication
Application
Priority
EP 97830232 A 19970521
Abstract (en)
The group is formed by a pipe (1) obstructed in the middle by a separator (2) to form two equal expansion openings (3 and 4) with diffusion holes (5). Through said holea (5) the coming in flow of the exhaust-gases passes from the first expansion opening (3) to an outside chamber (6) of a coaxial cilindrical body with closed ends and provided in its outside of a coating (8) in steel wool and long fiber rock wool. From said outside chamber (6) of the cilindrical body (7) the flow of the exhaust-gases, through the other diffusion holes (5), comes in getting out into the second diffusion opening (4). <IMAGE>
IPC 1-7
IPC 8 full level
F01N 1/10 (2006.01); F01N 7/04 (2006.01); F01N 13/04 (2010.01)
CPC (source: EP)
F01N 1/10 (2013.01); F01N 13/011 (2014.06); F01N 2310/02 (2013.01); F01N 2310/04 (2013.01); F01N 2470/02 (2013.01)
Citation (search report)
- [Y] US 4550799 A 19851105 - FLUGGER RAY T [US]
- [Y] US 4269800 A 19810526 - SOMMER ROLF, et al
- [A] DE 3205185 A1 19830825 - SEITZ WILFRIED
- [A] FR 2037718 A5 19701231 - LIONEL FOTHERGILL DEVELO
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 97830232 A 19970521