Source for high pressure 12v water pump

[Bruce]

You use two tanks.
One as an air accumulator (that is always under pressure).
Then a second tank with water.
The air tank being at 200 PSI all the time (min pressure switch, and pump on
when activated).
then use a NOS solenoid to pressurize the water tank, when water is needed
Bruce




----- Original Message -----
From: "Mark Chauvin" <chauvin at ghg.net>
To: <DIY_EFI at lists.diy-efi.org>
Sent: Wednesday, October 17, 2001 1:48 PM
Subject: Re: Source for high pressure 12v water pump


> Dave,
>
> Any idea where you would get a tank for that setup?  A small air
> reservoir from Sears would work I guess, but how would you put the
> water in?  And how would you make sure just water goes out, and not
> air (bubbles)?  I saw a web site where a guy used a tank with a
> bladder, but it looked very tedious to refill it.
>
> Or, would it be possible to blow the compressed air into the intake
> path, through an eductor to suck the water into the air stream?  Like
> the miracle grow lawn feeders.  I  don't know if that would put enough
> water into the engine, but it sure would atomize it, don't you think?
> I really like the idea of an air tank.  I was in walmart last night;
> ten bucks will get you a portable 125psi air pump.  And it's
> instant-on.  No waiting for the pump to pressure up.
>
> Stephen, I did a search on this awhile back.  Sureflo makes some nice
> pumps that go up to about 70psi, I think:
> http://www.shurflo.com/
> but they say their pumps won't handle anything flamable (you are going
> to mix alcohol w/ the water, yes?)
> Here's one that'll do 60psi:
>
http://www.northerntool.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=9414&p
rmenbr=6970
>
> Flojet also sells some:
> http://www.flojet.com/
> don't know if they can handle alcohol.  Maybe they all can, if you mix
> in a little lube (Redline sells some alcohol top-end lube).  Their
> catalog they sent me lists a D7135B7011 that'll do 100psi at 2.2gpm,
> and is made of "chemical resistant parts", but I couldn't find it on
> the web site.  I haven't investigated further.
>
> Here is a site with parts list:
> http://home.att.net/~stevemon/AlcoholInjMod.html
> And one for a Buick:
> http://www.gnttype.org/techarea/fuelsystem/alkyrecipe.html
> And another:
> http://www.dawesdevices.com/howto.html
>
> And these people sell solenoids pretty cheap:
> http://www.poweraire.com/index.htm
> And if you want to use a misting nozzle instead of NOS:
> http://www.mcmaster.com/
>
> (Gosh it's nice to contribute instead of just read read read...)
>
> hth
> -Mark
>
> On Tue, 16 Oct 2001 21:42:00 -0500, you wrote:
>
> >
> >-> I'm trying to source a 75 psi 12v water pump for use in water
> >-> injection.  Web searches for such items are very time consuming and
> >-> so far not productive.  Anyone have any ideas?
> >
> > It might be simpler to use one of the small 12V portable air
> >compressors from K-Mart to pressurize a tank.  Some of them will run
> >over 100 PSI, probably for bicycle tires or something.  Then all you
> >need is a 12V valve.  They make them for liquid, but Bimba and others
> >make stainless steel air valves which would work just fine for water.
> >WW Grainger or McMaster-Carr can get those.
> >
> > The reservoir would stay under pressure all the time; any leakdown
> >would be made up within a minute or two after restart.  Volume change in
> >use would be very slow, so there's not much chance of overrunning the
> >compressor.
> >
> > Stripped of their plastic housings, some of the compressors are quite
> >small.  You might also be able to scavenge one from a '70s or '80s
> >Cadillac or Olds with the automatic ride height adjust - your choice of
> >12V or vacuum(!) operation.
> >
> > You also get a source of compressed air right in the car, handy if you
> >autocross or do track events.
> >
> >==dave.williams at chaos.lrk.ar.us======================================
> >I've got a secret / I've been hiding / under my skin / | Who are you?
> >my heart is human / my blood is boiling / my brain IBM |   who, who?
> >============================== http://angelfire.com/ar/dw42/index.htm
> >
>
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