Vehicular muffler and motorcycle incorporating same

Details Vehicular muffler and motorcycle incorporating same Vehicular muffler and motorcycle incorporating same

2010-02-18

2011-10-25

Phillips, Forrest M (Department: 2832)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S212000, C181S227000, C181S247000, C181S256000, C181S257000

Reexamination Certificate

active

08042649

ABSTRACT:
A vehicular muffler is configured and arranged to smoothly introduce exhaust gas into a sound-absorbing material disposed inside of an outer case which has a plurality of relatively short inner sleeves therein. The muffler includes a porous plate which is disposed inside of the outer case, and which is connected to an exhaust pipe, and the porous plate is operatively connected to an outlet pipe which discharges an exhaust gas to the outside environment through an opening formed in an outlet side of the outer case. In one embodiment, the inner sleeves are arranged substantially parallel to each other, and are fluidly connected to a joint exhaust feed pipe disposed inside the outer case. The inner sleeves are connected to the outlet pipe on the outlet side of the outer case.

REFERENCES:
patent: 4108276 (1978-08-01), Hall et al.
patent: 4712644 (1987-12-01), Sun
patent: 5033581 (1991-07-01), Feuling
patent: 5198625 (1993-03-01), Borla
patent: 5608194 (1997-03-01), Okazaki et al.
patent: 7624842 (2009-12-01), Mizutani
patent: 2006-307793 (2006-11-01), None

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