Any - Finally, the car that runs on water ... almost

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Mon 6 Jul 2015 11:41
Any - Finally, the car that runs on water ... almost - craig-pd130

Interesting evaluation of a BMW prototype that uses water injection to boost volumetric efficiency in a petrol turbo: www.autoexpress.co.uk/bmw/1-series/92092/bmw-1-ser...w

Funny how these ideas come around. In the 60s, there was a gizmo for sale for motorbikes which fitted round the mouth of the carb. It had a small water reservoir and a couple of string wicks stretched across the carb throat. The idea being that the air rushing into the carb would evaporate moisture off the wick and cool the inlet charge, as if you were riding on a foggy, cold morning.

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Mon 6 Jul 2015 16:26
Any - Finally, the car that runs on water ... almost - brum

About time, motor manufacturers finally start to think laterally!

I've been an advocate of water injection for many years, not only for charge cooling but also the small boost which the change of state from liquid to steam will give in the combustion chamber.

Lower peak chamber temperatures (due to latent heat of evaporation) = lower Nox emissions. Turbulent steam means cleaner engines, the benefits are many.

The only downside will be the 50p/litre road water duty and the return of rusting tailpipes.

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Mon 6 Jul 2015 17:17
Any - Finally, the car that runs on water ... almost - focussed

Oh it's come around again has it?

Saab did this with the 99 Turbo S using indirect water injection as a factory fit and it's been done since donkey's years ago on aircraft both piston and turbine powered.

Like the man said-would you want one when the warranty had expired?

I would have thought that BMtroubleU had enough dissatisfied customers already, with going off at thhis sort of tangent.

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