Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1983-06-16
1986-04-08
Fuller, Benjamin R.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181252, 181259, 181272, 181273, F01N 100
Patent
active
045806578
ABSTRACT:
An integral formed fluted tube intended, for example, for use as a sound suppression device in mufflers, exhaust ejectors, etc. is disclosed. The tube is formed of a cylindrical portion with generally circular inlets and outlets and a constricted portion between those ends and within the constriction, a plurality of bypasses therethrough. The constriction may also include a frontal portion having a generally concave surface which rises to an apex and thereafter forms a plurality of convex rear portions toward the outlet end. Other embodiments are shown in the Figures. The device may be used integrally within a muffler to obtain a venturi effect for an exhaust ejector and sound suppressor.
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Hoppenstedt Bruce B.
Kleinhenz Joanne E.
Roberts David L.
Schmeichel Steven D.
Wagner Wayne M.
Donaldson & Company, Inc.
Fuller Benjamin R.
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