[AR] Re: coaxial injectors, venturi effect
- From: Peter Fairbrother <peter@xxxxxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Fri, 29 Jan 2021 08:20:07 +0000
On 29/01/2021 00:14, roxanna Mason wrote:
[...]
On Thu, Jan 28, 2021 at 2:42 PM Norman Yarvin <yarvin@xxxxxxxxxxxx
<mailto:yarvin@xxxxxxxxxxxx>> wrote:
[...]
Thanks chaps, but I my have gotten my question wrong.
My thought is that you have an injector with two concentric tubes, and
put say LOX in the central tube. The central tube stops short of the
outer tube, so there is a space where the flowing LOX drags the fuel along.
I was wondering whether this might allow you to only use one high
pressure pump for the LOX, and use the Venturi effect (if that is the
correct name) to pump the fuel.
Obviously the LOX pump would have to be higher power than otherwise, and
the outer tubes would have to be of small diameter to prevent combustion
or detonation inside them, but it might simplify plumbing a little.
Peter Fairbrother
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