Exhaust muffler for small internal combustion engine

Details Exhaust muffler for small internal combustion engine Exhaust muffler for small internal combustion engine

1995-05-09

1997-03-18

Dang, Khanh

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181243, 181255, 181404, F01N 708

Patent

active

056114095

ABSTRACT:
The exhaust muffler as a tailpipe head member including a front end mounted inside an expansion chamber of the muffler. The front end of the head member deflects exhaust gas pressure waves passing through the chamber. An annular passage is provided by the space separating the front end of the head member and the expansion chamber. A flow regulating conduit communicates exhaust gas from the annular passage to an outside of the muffler. The front portion of the expansion chamber can be provided with a series of annular flange steps for mounting onto various sizes of annular flanges of exhaust manifolds. The exhaust muffler both reduces noise levels and improves performance of the engine.

REFERENCES:
patent: 3669216 (1972-06-01), Spies
patent: 3703037 (1972-11-01), Tenney
patent: 3897854 (1975-08-01), Rhodes
patent: 4031979 (1977-06-01), Raleigh
patent: 4046219 (1977-09-01), Shaikh
patent: 4531364 (1985-07-01), Equi
patent: 4858722 (1989-08-01), Abbe et al.
patent: 5214254 (1993-05-01), Sheehan

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