F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
F02P 15/08 (2006.01) F01N 13/08 (2010.01) F01N 13/18 (2010.01) F01N 1/08 (2006.01) F02B 5/02 (2006.01) F02B 25/26 (2006.01) F02B 27/04 (2006.01) F01N 13/02 (2010.01) F02B 75/02 (2006.01) F02B 75/18 (2006.01)
Patent
CA 2275851
An improved two stroke, multiple cylinder engine having combustion chambers and a single exhaust conduit for discharging exhaust gasses from the combustion chambers. In accordance with one feature of the invention, the combustion chambers are unified to two groups and respective combustion chambers belonging to the same group are generally simultaneously fired by a firing system. Otherwise, the entire combustion chambers are generally simultaneously fired. In accordance with another feature, the exhaust conduit has an attenuation mechanism for positive pressure reflection waves generated in the exhaust conduit. In a preferred embodiment, the attenuation mechanism comprises an inner pipe tapered downstream and having a plurality of apertures.
Asano Kiyomori
Kato Hitoshi
Okada Hiroyuki
Barrigar Intellectual Property Law
Yamaha Hatsudoki Kabushiki Kaisha
LandOfFree
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