Absorption silencer for internal-combustion engines, especially

Details Absorption silencer for internal-combustion engines, especially Absorption silencer for internal-combustion engines, especially

1990-04-05

1991-07-23

Brown, Brian W.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

F01N 110

Patent

active

050335804

ABSTRACT:
In order to reduce the noise the exhaust of an internal-combustion engine, especially for off-road vehicles, there is utilized an absorption silencer comprising: a housing (1) made up of a plurality of mountable elements (10, 18), built from heat-resisting material and intended to be fitted and fixed in a removable way on the perforated exhaust pipe (50). Stuffing material (13) of deadening and heat-resisting material is interposed using two annular joints, a front one (20) and a rear one (21) built from partially elastic and highly heat-resisting material such as silicone or viton, and which also ensure the housing seal to the exhaust gases.
Advantageously, said the housing (1) is built from heat-resisting material, such as nylon or PPS, according to the rotary molding process.

REFERENCES:
patent: 2101460 (1937-12-01), Schmidt
patent: 3159237 (1964-12-01), Thomas
patent: 3181646 (1965-05-01), Edwards
patent: 3884037 (1975-05-01), Barber et al.
patent: 4084650 (1977-01-01), Gardell et al.

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