[AR] Re: Open air injector plate
- From: "Monroe L. King Jr." <monroe@xxxxxxxxxxxxxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Wed, 18 Feb 2015 09:50:36 -0700
I'm not sure about this but I think one side of standard fuel injectors
is open to ambient pressure. There is a pilot valve that actuates the
main injector.
If this is so the injector can handle a delta P of about 50 psi or so.
If I enclose the injector in the supply pressure of the GOX then the
valve should work if the delta P is in the 50 psi range even if the
pressure is 1000 psi. If that is so then fuel pressure should be 1050
psi.
If the pilot valve is at 1000 psi ambient then that should work.
Monroe
> -------- Original Message --------
> Subject: [AR] Re: Open air injector plate
> From: Jake Anderson <jake@xxxxxxxxxxxxxxx>
> Date: Tue, February 17, 2015 11:20 pm
> To: arocket@xxxxxxxxxxxxx
>
>
> Most fuel injectors wouldn't like the temperature at all, you would need
> to go to a "direct injection" type injector.
> Those are probably going to be $$$$ and as I recall operate in the 5Kpsi
> range?
>
> On 18/02/15 14:45, Monroe L. King Jr. wrote:
> > Hey I was wondering if anyone's run any injector test in open air
> > rather than in the combustion chamber. Seems to me it might be
> > interesting to see how the flame propagates from the pintle or injectors
> > in just open air?
> >
> > Looking at these automotive injectors might make an interesting engine
> > motor from just one of these :) with a little annular gox flow around
> > the base of the injector.
> >
> > I think I'll try one out in open air and see what it looks like.
> >
> > Also I wonder if some of these high temp O2 sensors could be pressed
> > for service to control A/F ratio?
> >
> > Monroe
> >
> >
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