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Class Information
Number: 181/283
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > With baffle or baffle structure > Casings > Air or liquid cooled
Description: Subject matter having a chamber or other structure for providing a cooling fluid to lower the temperature of the moving exhaust fluids.

Patents under this class:

Patent Number Title Of Patent Date Issued
8490745 Exhaust system component Jul. 23, 2013
8397493 Method for recovering waste heat from exhaust Mar. 19, 2013
8373987 Air conditioning system of portable data center Feb. 12, 2013
8248792 Container data center and air intake apparatus Aug. 21, 2012
8191677 Exhaust and cooling systems for implementation in reduced-size vehicle Jun. 5, 2012
8141679 Absorptive muffler suspension Mar. 27, 2012
8136352 Cover member for plural exhaust pipes Mar. 20, 2012
7913489 Device for lowering tail pipe exhaust temperature Mar. 29, 2011
7845465 Vehicular exhaust resonator with cooling feature Dec. 7, 2010
7806230 Absorptive muffler suspension Oct. 5, 2010
7775323 Silencer with fin outlet Aug. 17, 2010
7684726 Image forming apparatus having the outer cover including acoustic insulation and heat conductive layers Mar. 23, 2010
7389852 Integrated heat exchanger and muffler unit Jun. 24, 2008
7374016 Muffler device May. 20, 2008
6978605 Exhaust emission control system for engine Dec. 27, 2005
6910550 Muffler arrangement for an internal combustion engine Jun. 28, 2005
6781829 Device for reducing the noise level of a component with moving parts and for cooling the same Aug. 24, 2004
6422338 Exhaust gas muffler for internal combustion engines Jul. 23, 2002
6152258 Exhaust system with silencing and water separation capability Nov. 28, 2000
5971097 Muffler for motor vehicles Oct. 26, 1999
5738184 Muffler for a two-stroke engine Apr. 14, 1998
5326942 Noise suppression muffler for moisture laden exhaust gases & method Jul. 5, 1994
5314009 Exhaust gas recuperator May. 24, 1994
5228530 Muffler system for an engine disposed rearwardly of a vehicle Jul. 20, 1993
5220137 Engine exhaust muffler Jun. 15, 1993
5211013 Muffler heat shield and method of attachment May. 18, 1993
4741411 Muffler system May. 3, 1988
4694894 Heat exchangers Sep. 22, 1987
4656712 Method for manufacturing a heat shielded exhaust system component Apr. 14, 1987
4656713 Method for forming an air gap pipe Apr. 14, 1987
4622923 Encased engine generator Nov. 18, 1986
4621677 Heat exchanger for internal combustion engine exhaust, with noise suppressor Nov. 11, 1986
4590652 Method for fabricating an air gap pipe May. 27, 1986
4493390 Apparatus for the combined production of electrical energy and heat Jan. 15, 1985
4487289 Exhaust muffler with protective shield Dec. 11, 1984
4450932 Heat recovery muffler May. 29, 1984
4265332 Heat extracting muffler system May. 5, 1981
4184566 Marine engine noise suppressor Jan. 22, 1980
4051917 Sound-damping housing Oct. 4, 1977

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