Why not an E.F.Air.I.

[John Napoli]

We already have a large tank of air at a fairly constant pressure to draw
from.

It's called the 'atmosphere'!!

Seriously, the size and weight of the tank you'd need for anything but the
smallest engines running for the shortest times make this impractical.
And what do you do to refill?  And how long would that take?

In space liquid oxygen is carried -- tricky to handle and it puts a real
limit on the operations fueled by it (you can't afford to carry as much as
you'd like).

John

On Thu, 22 Aug 1996, Joe West wrote:

>  Hello all.
> 
> Being new to this area of expertise I have a question that might seem silly
> but then again.
> 
> Why not have a system that injects a measured amount of air at a set or
> variable pressure into the cylinder. (for racing purposes only) Just compresed
> air not any specific oxidizer, like nitrous for example. 
> 
> The system could use the best of both carb and EFI. Say that you had a 
> SCUBA tank 80cuft at 3000 psi which was pressure regulated and would send
> a pulsed charge to each cylinder individualy. Passing over a fuel inlet
> jet before reaching the combustion chamber. Now you have the vapor of a 
> carb. and the regulation of an EFI. Not the mention the boost of a supercharger.
>  
> Or use the tank to maintain a fixed pressure in the manifold runners ?
>  
> The CFM rate might be a problem in anything but drag racing.
> 
> Just an idea, but then again.
> 
> Joseph D. West
> Electronics Lab. Supervisor
> College of Mechanical Eng.
> Ohio State University
> 
> (614) 292-2845
> Fax (614) 292-3163
> 
>