Subject: Re: water into efi system before injectors.

[Mike (Perth, Western Australia)]

At 09:11 PM 17/3/2000 +1100, you wrote:
>Roy wrote:
>> ...
>> On the subject of water pumps for water injection.
>
>Hasn't someone invented a water pump that works off engine
>vacuum, yet? Can't be much more than a diaphragm and a 
>couple of valves, perhaps a spring and some other bits
>for pressure regulation. This technology would last forever 
>in an H2O and hot air environment of an engine bay.

<hrrrm> To get enough power you'd need a fair flow and differential
sustained for long enough - you don't get something for nothing, I
am guessing but if you'd want to use engine vacuum to extract the power
to pressureise the water - such as with a eletric pump then it would
choke the engine.

Brake boosters and the like work real well because the flow is
negligible and over a larger area etc - Looks neat but ain't
that much option for sustained power draw AFAIK.


Rgds

:) mike

----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org