Hello.
The PatAT is a simple two-stroke having asymmetric timing of the transfer and of the intake, like:
The transfer and the intake ports communicate with the crankcase through respective piston ports controlled by the connecting rod:
While it adds no new parts to the simple two-stroke,
it behaves like having a rotary valve for the control of the intake (like, say, the Rotax 582),
and another rotary valve for the control of some "top" transfer ports (like, say, the Primavis two-stroke http://www.pattakon.com/tempman/primavis.jpg )
It can run even with zero "overlap" between the exhaust and the transfer.
For more: http://www.pattakon.com/pattakonPatAT.htm
Thoughts? Objections?
Thanks
Manolis Pattakos
The PatAT is a simple two-stroke having asymmetric timing of the transfer and of the intake, like:
The transfer and the intake ports communicate with the crankcase through respective piston ports controlled by the connecting rod:
While it adds no new parts to the simple two-stroke,
it behaves like having a rotary valve for the control of the intake (like, say, the Rotax 582),
and another rotary valve for the control of some "top" transfer ports (like, say, the Primavis two-stroke http://www.pattakon.com/tempman/primavis.jpg )
It can run even with zero "overlap" between the exhaust and the transfer.
For more: http://www.pattakon.com/pattakonPatAT.htm
Thoughts? Objections?
Thanks
Manolis Pattakos
