Thread: Exhaust valves
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Old 12-14-2015, 01:35 AM   #19 (permalink)
cRiPpLe_rOoStEr
It's all about Diesel
 
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Quote:
Originally Posted by aerohead View Post
the Yamaha EXUP Patent would have expired in 2008?
Since exhaust-brakes have been around in Diesel trucks for a long time, and their position inside the exhaust system is similar, even though their functions are different, I wouldn't really care about Yamaha and its patents
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