Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1998-07-23
1999-11-09
Dang, Khanh
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181254, F01N 100
Patent
active
059795964
ABSTRACT:
An automatic compression brake muffler is provided including a muffler pipe. An auxiliary pipe is connected to the muffler pipe and defines passages which are offset from the muffler pipe. Next provided is a mechanical valve having an open orientation for allowing the passage of air through the entire muffler pipe and a closed orientation for precluding the passage of air through the entire muffler pipe and further forcing air through the auxiliary pipe. Finally, a mechanism is included for transferring the mechanical valve to the closed orientation only when a compression brake is actuated.
REFERENCES:
patent: 2072372 (1937-03-01), Kingsley
patent: 5435347 (1995-07-01), Gullingham
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