Power plants – Internal combustion engine with treatment or handling of... – Pulsed – timed – tuned or resonating exhaust
Patent
1987-11-30
1990-01-30
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Pulsed, timed, tuned or resonating exhaust
180 892, 180219, F02B 2702
Patent
active
048965049
ABSTRACT:
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.
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Beutler Ernest A.
Hart Douglas
Yamaha Matsudoki Kabushiki Kaisha
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