Adjustable restriction muffler system for a combine

Details Adjustable restriction muffler system for a combine Adjustable restriction muffler system for a combine

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 13/08 (2010.01) A01D 41/00 (2006.01) F01N 1/16 (2006.01)

Patent

CA 2416937

A bypass for an exhaust system for a utility vehicle, such as a combine, that, when substantially closed, provides maximum noise attenuation for road transport, i.e., relatively high back pressure, and then, when substantially open, would provide a reduced flow restriction, i.e., relatively low back pressure, for full power, field operation. A bypass flow path in an exhaust pipe is located upstream of a primary muffler. A diaphragm can be provided to manipulate a damper which acts to close the exhaust flow to the primary muffler and open the bypass to an exhaust pipe to effectively bypass the primary muffler.

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