[Amc-list] MW-50 = CON'T

[Brien Tourville <hh7x@xxxxxxxxxxx>]

Aquamist - (http://www.aquamist.co.uk/dc/dc.html)
2007/08/02 18:26:36
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DESIGN CONCEPT
Simple chart of the engine power stroke cycle SAE research papers 
resources Need more information? contact us Lots and lots of interesting 
cars
   
THE CONCEPT of injecting water into the internal combustion engine has 
been around for over 50 years. But the desire to extract more power from 
the standard production engine has increased at a neck-breaking speed. 
ERL has just revived this old principle, applying the latest techniques 
in both electronic and mechanical engineering to take water injection 
into the next millennium.     
   
    WATER? Water exists mainly in a liquid state because that is its 
most stable inter-molecular structure. When we apply heat energy to it, 
its molecules begin to expand: a great deal of heat is absorbed during 
this process owing to water's specific heat capacity - approximately 
4.2kJ/(kg.K). When the water changes from the liquid to gas state, large 
amount of heat energy is consumed in sustaining the process. The latent 
heat of evaporation is 2256kJ/kg, approximately six times more than 
gasoline!     
   
    SO WHAT? Because of its huge specific- and latent- heat capacity, 
water is the perfect liquid for regulating excess heat under certain 
engine-operating conditions, for example induction charge air cooling; 
but its biggest contribution is inside the combustion chamber where, 
under excessive loading, pre-ignition and detonation can otherwise 
occur. Such abnormal combustion is particularly common in force 
induction engines, where exhaust temperature can exceed 1100°C!     
   
    WHAT CHANCE has a piston got under these conditions, given that 
aluminium melts at 660°C? 99% of production cars keep exhaust 
temperature below 850°C by fuel-dumping, and hold crown temperature 
below 550°C by conduction to the underside and skirt of the piston, 
which is constantly being quenched by engine oil. Most of the heat is 
transferred to the cylinder wall. Simple and wonderful solutions, but ...
    
    TURBO-CARS are easily upgraded just by adjusting the boost pressure 
and adding a commercially-available pre-programmed chip; but the hidden 
drawback of this solution is that even more fuel is being dumped -- as a 
coolant! -- to compensate for standard engine-cooling arrangements 
(inside the engine bay your fast-road car has more-or-less the same 
radiators and cooling fans as the family car next door). But as you 
upgrade your power-upgrade, you will get to the point where the fuel 
becomes so rich, and the flame is burning so slowly, that power is being 
lost rather than gained.
   
    WORSE STILL your piston is no longer being lubricated properly: 
bore-wash is taking its toll of the pistons. You might decide to combat 
this with a very special synthetic oil, developed from years of 
research, which helped some car to win a few championships last season. 
Your favourite racing-driver recommends it on TV, so of course you want 
to believe him. But have you ever wondered why he has to get his engine 
rebuilt after every race?   
 
    HELP! Help is indeed at hand! The ERL Aquamist system, using 
sophisticated electronics to process engine-data, injects a 
precisely-metered quantity of coolant: not gasoline, but water, six 
times more effective, and freely available! We eliminate fuel-dumping, 
leaving your air/fuel ratio unaffected, enabling maximum power to be 
extracted from the engine. To ensure that each cylinder receives exactly 
the same dosage, we deliver the coolant in a fine mist: not only does 
Aquamist eliminate piston-ring damage ... it steam-cleans your engine 
with every stroke!  
 
    THERE'S MORE ... The Aquamist system offers a full range of 
diagnostic features, enabling you to detect blocked nozzles, cut 
water-pipes, and all sorts of other smashing things. If track record and 
expertise is what you want, don't wait for your favourite racing driver 
to tell you about Aquamist on TV: it might be too late ... 




  

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