[SEL] The McVickerish Engine and video

[Rob Skinner]

On Mar 23, 2010, at 4:04 PM, <jbcast at charter.net> <jbcast at charter.net>  
wrote:

> An advantage to holding the exhaust open is the cooling effect of  
> the air in and out, Aeromotor 8 cycles took this to the extreme,  
> intake, compression, power, 5 strokes with exhaust open. When you  
> compress air you're making heat as in a Diesel. Kinda strange, is it  
> OK to talk about engines on this list?
> J.B. Castagnos
> Bele Rose, LA



Righteo, JB... but don't forget that after you finish converting  
mechanical energy into thermal energy by compression, the thermal  
energy is converted right back into mechanical energy as the  
compressed gas expands!  The "open exhaust" system will not coast as  
long as the "compress/expand" system because it's pushing air in and  
out of the cylinder the whole time.  All this pondering about engines  
is FUN!

Rob