[Diy_efi] Ultrasonic Injector - by Eaton/Bosch ?

[Mike]

Hi Chaps,

Some 15 or so years back (or maybe 20 <shrug>), I saw an article
in a auto news mag about a very simple fuel injector which consisted
solely of a tube with spring loaded ball and the housing built
from a piezo-restrictive material or an effective ultrasonic
transducer with optimum shape of your classic exponential horn.

Fuel pressure and the spring would hold the ball against the
front of the seat and no fuel would flow, when the transducer was
excited by your classic chopped waveform at around 50KHz then the
ball would vibrate sympathetically and release fuel in nice
small droplets more finely atomised than for your existing
injector.

This device was being developed by Eaton (GMBH) and there was
rumour it was bought out by Bosch.

I sent a letter to Bosch some 4 to 6 years back and got no
reply :(

Anyone know what am I talking about and offer any update on this ?


Regards

Mike Massen
Hm 08 9444 8961,  Mb 0438 048961

Some power stuff here: http://www.iinet.net.au/~erazmus

Ancient Sufi saying:
        "Should your God save you from adversity, choose another God"


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