Exhaust system for a two-stroke engine

Details Exhaust system for a two-stroke engine Exhaust system for a two-stroke engine

F - Mech Eng,Light,Heat,Weapons

01

N

172/31

F01N 1/02 (2006.01) F01N 1/06 (2006.01) F01N 1/08 (2006.01) F02B 27/04 (2006.01)

Patent

CA 1117027

EXHAUST SYSTEM FOR A TWO-STROKE ENGINE Abstract of the Disclosure A hollow, generally conical member is provided in a cylin- drical portion of a muffler shell and has a surface cooperating with the shell to compress oncoming exhaust gases, the surface being of a special curved configuration calculated for reflecting impinging gas flow in a non-linear pattern which results in the development of pressure waves that arrive at an open exhaust port of the engine at the proper time for providing efficient scaven- ging and/or supercharging. The generally conical member also serves as an expansion chamber and, in one embodiment thereof, an elongate tube is provided for conveying gases axially thereinto while elongate perforations are provided in the rear end wall thereof for conveying gases therefrom. In a second embodiment thereof, a plurality of radial openings are provided for convey- ing gases thereinto while a tube extends axially through an end wall thereof for conveying gases therefrom.

331230

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