(19)
(11) EP 0 530 892 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.06.1993 Bulletin 1993/24

(43) Date of publication A2:
10.03.1993 Bulletin 1993/10

(21) Application number: 92202543.2

(22) Date of filing: 19.08.1992
(51) International Patent Classification (IPC)5: F01N 1/02, F02D 9/06
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE LI LU NL PT SE

(30) Priority: 03.09.1991 IT TO910668

(71) Applicant: Perlini, Roberto
I-37047 S. Bonifacio (Verona) (IT)

(72) Inventor:
  • Perlini, Roberto
    I-37047 S. Bonifacio (Verona) (IT)

(74) Representative: Robba, Eugenio 
Studio "INTERPATENT" via Caboto 35
10129 Turin
10129 Turin (IT)


(56) References cited: : 
   
       


    (54) Silencer device for internal combustion engines


    (57) Silencer device (1) for internal combustion engines equipped with exhaust brake, composed by a hollow body (3) whose shape is substantially spheroidal and whose section is approximately ovoidal, assembled downstream of the exhaust manifold of the engine and upstream of the muffler, connected to them through inlet openings (5, 13) and ducts (7, 15), and operating on exhaust gases going out of the engine, so that they expand and reflect inside it, losing kinetic energy, and damping the sound waves before making them entering the muffler.






    Search report