EP 0897060 B1 20030122 - Intake silencer system
Title (en)
Intake silencer system
Title (de)
Einlassgeräuschdämpfer
Title (fr)
Silencieux d'admission
Publication
Application
Priority
- JP 21841697 A 19970813
- JP 21841897 A 19970813
Abstract (en)
[origin: EP0897060A2] The case of an intake silencer system includes a first case half and a second case half coupled to each other at mating faces, with an intake duct clamped between the mating faces. The intake duct opens into a resonant chamber within the case, so that noise is damped by a resonant effect. Three ribs are provided on an inner surface of the first case half, thereby defining four subsidiary silencing chambers each functioning as a side branch for producing a resonant effect to obtain a silencing effect in a wide frequency range. The ribs also contribute to an enhancement in rigidity of the wall surfaces of the case. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 35/12 (2006.01)
CPC (source: EP)
F02M 35/1266 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0897060 A2 19990217; EP 0897060 A3 19990908; EP 0897060 B1 20030122; CA 2244951 A1 19990213; CA 2244951 C 20010403; CN 1095926 C 20021211; CN 1208120 A 19990217; DE 69810858 D1 20030227; DE 69810858 T2 20030605; MY 121318 A 20060128; TW 366388 B 19990811
DOCDB simple family (application)
EP 98114749 A 19980805; CA 2244951 A 19980812; CN 98118326 A 19980812; DE 69810858 T 19980805; MY PI9803663 A 19980811; TW 87112751 A 19980803