Water Injection

[avos at cochlear.com.au]

     Isn't one of the effects of water injection to absorb the heat as it 
     changes form water to steam, thereby providing some sought of 
     intercooling effect in the combustion chamber anyway, so even if it is 
     not that cold, it will still have an intercooling effect....
     
     


______________________________ Reply Separator _________________________________
Subject: Re: Water Injection
Author:  diy_efi at coulomb.eng.ohio-state.edu at INTERNET
Date:    05/9/97 10:38


Hi Jason &  All
     
> What type (brand, cost?) of injectors are available? 
     
I'm using (well trying to) a fuel injector, But I think the one I 
have is dead =-(
     
> Where might I buy one?
> Do you have to use distilled or filtered water, or will tap water do the trick
> (evil mineral deposits)?
     
Tap water for me unless anyone has a good reason not to.
     
> Is the water atomized, or just squirted into the combustion chamber in big, 
ugly
> drops?
     
Atomized is the plan.
     
> Lastly, (shot in the dark) what kind of specs are typical for such an 
injector?
> Firing frequency?  
     
I've seen a simple set up that uses a boost activated switch to turn 
on an injector (not pulsed just ON) 
     
> Is the water expected to be pre-pressurized to 75 PSI, of a 
> given temperature, or what?
     
I think it only needs to be higher than the manifold pressure plus 
a bit more to get the liquid atomizing from the injector. 
     
I guess that the colder the water the better as it will have an 
intercooler effect as the water mists, however I doubt it will be 
cold enough to make much of a difference ?  
     
Cheers
     
Simon
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  Simon Quested (E-mail questeds at lincoln.ac.nz)
  Computer Technician, Silicon Graphics & Windows NT Support 
  Centre for Computing and Biometrics
  LINCOLN UNIVERSITY OF NEW ZEALAND
  Phone (64)(03) 3252811 Ext. 8087
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http://www.lincoln.ac.nz/ccb/techs/simon/default.htm 
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When the chips are down, the cow is empty. 
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