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Date: Thu, 11 Feb 2010 02:08:56 -0500
Message-ID: <1ab24f411002102308x431daa6oe418a33875f501d4@mail.gmail.com>
Subject: Blower fun.
From: Lynn Hanover <lehanover@gmail.com>
To: flyrotary@lancaironline.net
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I'm taking the intake air from around the side of the gearbox, through
its mounting plate.  The flywheel will have an impeller attached to it.
I built a fiberglass shroud to enclose the area between the gearbox
mounting plate and the engine.  Intake air is taken from this
centrifugal pump.

I admire the creativity and effort, but I see big question marks. My only
point of reference is a large furnace type centrifugal blower which
generates maybe 1/2" HG pressure.   And how is this approach going come
close to the efficiency of a well designed supercharger.

I've been wrong before; so go ahead - shoot me.

Al


--
It seems to me that the very well designed cooling blower fans from a VW 411
size engine, or a Porsche or even a Corvair, could be used a test piece.
Just spin them up to 6,000 RPM and look at the monometer.

Although the housing would be complex, similar to a plant air package, or a
deep well water pump you can add a stage to nearly double the output
pressure. All done at one shaft RPM. The output of the first stage feeds the
intake of the second stage.

This could work.

Lynn E. Hanover

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<div>I&#39;m taking the intake air from around the side of the gearbox, thr=
ough <br>its mounting plate.=A0 The flywheel will have an impeller attached=
 to it.=A0 <br>I built a fiberglass shroud to enclose the area between the =
gearbox <br>
mounting plate and the engine.=A0 Intake air is taken from this <br>centrif=
ugal pump.<br><br>I admire the creativity and effort, but I see big questio=
n marks. My only<br>point of reference is a large furnace type centrifugal =
blower which<br>
generates maybe 1/2&quot; HG pressure.=A0=A0 And how is this approach going=
 come<br>close to the efficiency of a well designed supercharger.<br><br>I&=
#39;ve been wrong before; so go ahead - shoot me.<br><br>Al<br><br><br>--<b=
r>
It seems to me that the very well designed cooling blower fans from a VW 41=
1 size engine, or a Porsche or even a Corvair, could be used a test piece. =
Just spin them up to 6,000 RPM and look at the monometer. </div>
<div>=A0</div>
<div>Although the housing would be complex, similar to a plant air package,=
 or a deep well water pump you can add a stage to nearly double the output =
pressure. All done at one shaft RPM. The output of the first stage feeds th=
e intake of the second stage. </div>

<div>=A0</div>
<div>This could work.</div>
<div>=A0</div>
<div>Lynn E. Hanover</div>

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