F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
172/31
F02B 27/06 (2006.01) F01N 13/08 (2010.01) F02B 61/02 (2006.01) F02B 75/20 (2006.01) F02D 9/04 (2006.01) F02D 9/10 (2006.01) F02B 75/18 (2006.01)
Patent
CA 1290698
ABSTRACT OF THE DISCLOSURE A motorcycle having an exhaust system with an exhaust control valve that is provided to improve engine mid-range performance without adversely affecting high range performance. Several embodiments of valves are disclosed, all of which include a valve member that is movable to a position to obstruct the flow through the exhaust gas but is also movable to an opened position wherein the exhaust gas flow is completely unobstructed. The exhaust control valve is suspended independently from the chassis and is configured so as to promote smooth flow of exhaust gases through it.
553582
Borden Ladner Gervais Llp
Yamaha Hatsudoki Kabushiki Kaisha
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