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Class Information
Number: 181/221
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > Reaction engine type > With disparate fluid mingling > Liquid
Description: Subject matter in which the added fluid is a liquid, usually water.










Patents under this class:

Patent Number Title Of Patent Date Issued
8020368 Aircraft jet engine provided with a device for reducing propulsion jet noise Sep. 20, 2011
7861823 Duct for reducing shock related noise Jan. 4, 2011
7331421 Flow restrictors for aircraft inlet acoustic treatments, and associated systems and methods Feb. 19, 2008
7308966 Device for reducing jet engine exhaust noise using oscillating jets Dec. 18, 2007
7104749 Intake silencer for gas turbines Sep. 12, 2006
7104750 Fogging device for gas turbines Sep. 12, 2006
7055308 Detonation damper for pulse detonation engines Jun. 6, 2006
6802750 Exhaust system for watercraft Oct. 12, 2004
6691823 Suction muffler in reciprocating compressor Feb. 17, 2004
6564901 Muffler for marine engine May. 20, 2003
6442933 Device for catalytic exhaust gas purification Sep. 3, 2002
6412595 Economical exhaust muffler system for a marine propulsion apparatus Jul. 2, 2002
6152258 Exhaust system with silencing and water separation capability Nov. 28, 2000
6092621 Methods and apparatus for suppressing engine test cell howl Jul. 25, 2000
5426270 Fluid noise muffler and method of manufacture Jun. 20, 1995
5103929 Fluid noise muffler and method of manufacture Apr. 14, 1992
5046977 Exhaust muffler for marine engines Sep. 10, 1991
4987970 Device for collecting the exhaust gas jet of an aircraft reactor and a testing installation for aircraft reactors Jan. 29, 1991
4713029 Inverted flow marine engine exhaust muffler Dec. 15, 1987











 
 
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