Muffler assembly

Details Muffler assembly Muffler assembly

1980-04-21

1982-11-16

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181272, 181273, F01N 102, F01N 108

Patent

active

043591353

ABSTRACT:
A muffler comprising a housing (12) having end caps (16, 18) and partitions (32, 38, 42) which divide it into first and second expansion chambers (40, 44), a flow chamber (36), and a resonator chamber (34). An inlet tube (20) passes through end cap (16) and partitions (38) and (32) to open into chamber (34): it has perforations (58) and (62) which afford communication with chambers (40) and (36) respectively. An outlet tube (24) passes through end cap (18) and partitions (42) and (32) to open into chamber (36): it has perforations (70) which afford communication with chamber (44), and includes anti-whistle beads (72). A conversion-divergent nozzle (80) is located in tube (22) at its end opening into chamber (36). Apertures (190) are provided to afford limited flow of gas through chamber (34) from tube (20) to chamber (36).

REFERENCES:
patent: 3419892 (1968-12-01), Wagner et al.
patent: 3672464 (1972-06-01), Rowley et al.
patent: 4111278 (1978-09-01), Bergman
patent: 4111279 (1978-09-01), Sterrett
patent: 4192401 (1980-03-01), Deaver et al.

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