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Date: Mon, 14 Mar 2005 16:18:11 -0700
From: Bob White <bob@bob-white.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Electric water pump
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Now that is interesting.  I had to find out more.  Here's a quote from:
http://www.germancarfans.com/print.cfm/ID/2050118.013/lang/eng

"The electrical water pump is yet another innovation in technology.
Operating fully autonomously, the water pump is controlled exclusively
as a function of the engine___s actual cooling requirements, regardless
of current engine speed. This provides a significant reduction of fuel
consumption, BMW___s system taking up a maximum of 200 W engine output as
opposed to the power uptake of a conventional water pump of up to 2 kW."

OK, so 200 W is about 17 amps.  The Meziere WP336 is supposed to draw
about 11 amps, but since the WP136 draws about 30-40% more than it was
supposed to, the WP336 may need 15 amps or so.

BTW Rusty,  did you get your flow meter, and have you made any progress
on doing the hot water flow test?  That's going to determine whether I
stick with the two WP136's or go with a single WP336.

Bob W.


On Mon, 14 Mar 2005 16:30:42 -0600
"Russell Duffy" <13brv3@bellsouth.net> wrote:

> Those interested in the electric water pump have a new friend. BMW has go=
ne
> to the electric pump on the new 2006 BMW 330i.
>=20
> =20
> Excellent news Herb.  Thanks for passing that along.
> =20
> Rusty (one down, many to go)
>=20
>=20

--=20
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