use of ORIFICE for controlling pulsation by pressure wave
use of ORIFICE for controlling pulsation by pressure wave
(OP)
I am looking for any information regarding pulsation control in exhaust system.
In two stroke engine, many cylinders are connected to one common exhaust pipe(plenum). Therefore, those pressure waves resulted from the blowdown and the reflected ones.
And the pulsation amplitude may become unexpected large.
Then, engine performance will be less.
I've heard that the simplest way to control the pulsation is to insert orifices in the exhaust pipe(plenum)
Therefore, I'd like to get any information of the theoritical approach for use of orifice.
Could you please help me?
In two stroke engine, many cylinders are connected to one common exhaust pipe(plenum). Therefore, those pressure waves resulted from the blowdown and the reflected ones.
And the pulsation amplitude may become unexpected large.
Then, engine performance will be less.
I've heard that the simplest way to control the pulsation is to insert orifices in the exhaust pipe(plenum)
Therefore, I'd like to get any information of the theoritical approach for use of orifice.
Could you please help me?





RE: use of ORIFICE for controlling pulsation by pressure wave
RE: use of ORIFICE for controlling pulsation by pressure wave
RE: use of ORIFICE for controlling pulsation by pressure wave
RE: use of ORIFICE for controlling pulsation by pressure wave
If this a modern design from a big name brand manufacturer then I suspect a LOT of thought and testing has gone into it. I would make my modifications removable.