Hey Al,
How do you come to the conclusion that the oil is
"stagnant in the pan". What difference does the presence of a heat
exchanger, be it a full tote odds custom unit, or a just
a series of tubes in the pan, have on oil flow?? Sure, the
oil may be a little slow flowing through the fins when it's cold, but as
the oil warms up, this goes away. But, y'see, the trick
is to make the heat exchanger unit out of the correct core
material. Obviously, one doesn't use oil cooler core or
radiator core (or an evap core!!)! Something like an auto tranny cooler is
more the G-O ... nice big flat widely spaced fins ... on edge to the oil
flow ... maaaaaate ....
So I'm flummoxed as to how the oil can be
"stagnant". The oil still gushes out of the front, centre
& rear housing galleries, flows over the heat exchanger
tubes/fins, and the oil pick-up removes exactly the same amount at the
same rate, forcing it into the oil galleries of the engine, where it
then gushes out of the front, centre & rear housing galleries,
flows over the heat exchanger, and the oil pick-up removes exactly the
same amount at the same rate, forcing it into the oil galleries of the
engine ... Ad Infinitum.
But I've just said basically what Mike Wynnn just
posted. Hmmmmmmmm ... Two soldiers out of step together .... better
have a talk to the drum major!
Cheers,
Leon
P.S.
To make it work properly, the heat exchanger
must be fed COLD water from the pressure side of the pump, not the heater
outlet at the back of the block (but we already HAD that conversation about why
nobody could get the Factory Mazda oil/water heat exchangers to
work, ... didn't we ... ??)
----- Original Message -----
Sent: Saturday, January 15, 2005 2:32
AM
Subject: [FlyRotary] Re: water cooled
matrix in the oil pan
I
was reading through some of the old postings and came across
Leon's post
in which he suggested putting a water cooled matrix in
a modified oil pan
(sump). This seems to have a lot going for
it. The posting is #1188. Of
course there are minor issues like not stuffing the
dipstick through the
cooler matrix and making sure the oil pick up goes to
the right place, but
nothing insurmountable.
There were no follow up postings and yet it seemed
quite a decent idea.
What am I missing (apart from pictures of wombats
and/or nude moose).
The problem with this is that
the oil is essentially stagnant in the pan; therefore very poor heat transfer
characteristics.
Al
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