Mailing List flyrotary@lancaironline.net Message #51545
From: <WRJJRS@aol.com>
Subject: Re: [FlyRotary] Re: 13B rotary engines
Date: Tue, 22 Jun 2010 01:22:30 EDT
To: <flyrotary@lancaironline.net>
In a message dated 6/21/2010 5:12:31 PM Pacific Daylight Time, tracy@rotaryaviation.com writes:
I hate to ask, but what about the Dynamic Intake effect in the PP with a traditional log-type manifold?

If you think about the meaning and function of the Dynamic effect, you will see that it is mutually exclusive with the traditional log-type manifold.   the 'log' is a plenum chamber which inherently damps out the dynamic waves and reflections in a DIE intake system.

The timing, length, etc would be different than for the sideport DIE setup that Ed Anderson did so much work on.  I won't even pretend to have any idea what the proper parameters are for a PP DIE setup.

Tracy
Tracy,
 I was leaving work and didn't understand his question. I interpreted it as ram tuning effect which is very possible using a log plenum, it just depends on the inlet tubes. If you wanted to work out a manifold to use the DIE it should be possible but you're right Tracy it wouldn't be a conventional log manifold of course. But like dead reckoning I really dislike the name!
Bill Jepson
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster