[SEL] The McVickerish Engine and video

[Elden DuRand]

J.B.:

First, I enjoyed finally meeting you at Zolfo.  It's always nice to meet someone I've corresponded with for years.

You are "sort of" right about the heat of compression being a negative.  Remember, though, that when the gas is expanded on the return stroke, the heat is given back up.  Of course, not all of the heat/pressure is exchanged either way so the process isn't 100 percent efficient.

To the list:  I apologize for J.B. and myself for being off-topic for talking about engines.

Take care - Elden DuRand
edurand at mchsi.com
http://www.oldengine.org/members/durand 

> -----Original Message-----
> From: sel-bounces at lists.stationary-engine.com
> [mailto:sel-bounces at lists.stationary-engine.com]On
>  Behalf Of
> jbcast at charter.net
> Sent: Tuesday, March 23, 2010 06:05 PM
> To: The SEL email discussion list
> Subject: Re: [SEL] The McVickerish Engine and video
> 
> 
> 
> 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