| (19) |
 |
|
(11) |
EP 0 837 238 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
28.10.1998 Bulletin 1998/44 |
| (43) |
Date of publication A2: |
|
22.04.1998 Bulletin 1998/17 |
| (22) |
Date of filing: 24.06.1997 |
|
| (51) |
International Patent Classification (IPC)6: F02M 35/14 |
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
Designated Extension States: |
|
AL LT LV RO SI |
| (30) |
Priority: |
24.06.1996 BR 9602968
01.07.1996 BR 9603046
|
| (71) |
Applicant: Westaflex Tubos Flexiveis Ltda. |
|
Araucaria,
Parana 702-210,
CEP 83 (BR) |
|
| (72) |
Inventor: |
|
- Lepoutre, Edmond Pol Jean
Curitiba
Parana (BR)
|
| (74) |
Representative: Davies, Gregory Mark |
|
Urquhart-Dykes & Lord
Alexandra House
1 Alexandra Road
Wales
Swansea, Wales SA1 5ED
Swansea, Wales SA1 5ED (GB) |
|
| |
|
| (54) |
Mouldable acoustic devices |
(57) Mouldable acoustic devices internally coupled to a vehicle engine's air filter relates
to a mouldable acoustic box (5), comprised of a plate of porous acoustic absorbing
material or a set of plates of porous acoustic materials, superimposed and glued to
each other, having its shape predetermined pursuant to the internal and acoustic characteristics
of the conventional air filter to which it will be internally coupled, the device
(5) being essentially an acoustic internal lining having the purpose of absorbing
acoustic waves generated by inlet noises, that is coupled inside the air filter's
upper compartment (1) and/or lower compartment (2), the device (5) being optionally
removable f
vrom the relevant compartments.