Mailing List flyrotary@lancaironline.net Message #2894
From: Marvin Kaye <marv@lancaironline.net>
Subject: Re: [FlyRotary] Re: turbo wastegate requirements
Date: Thu, 11 Sep 2003 19:24:40 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Jim Sower <canarder@frontiernet.net> wrote:

The pressure trying to OPEN the valve is MAP applied against the inside face
of
the valve.  The pressure trying to CLOSE the valve is spring tension PLUS ambient
pressure applied on the outside face of the valve.

You will have to somehow compensate for the ambient pressure outside the valve <<<

You're absolutely right.  Shortly after I hit the send button I realized the folly of my ways <G>.  That ambient pressure outside certainly needs to be accounted for.  Back to the drawing board.

 <Marv>

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