John,
Don't know - however I'd be surprised if it hadn't been tried before. In this era where emphasis is on pollution control, you would think all these thing would come to the forefront of
engine technology.
Has anyone one got any info on the Honda Civic, maybe someone had one and knows a little about it.
BTW finally saw the video Kelly and I was impressed with what I saw. Ink jet technology must be better than I imagined.
If it can be done for heavy fuels, they can do it for the lighter fuel as well - maybe? It would be good if they could do it without high pressure.
I know more than one of the smaller rotary engines run fuel through the rotor to cool the rotor and it certainly would heat the fuel and it may be for this reason they do it. However I'm wondering about droplet sizes and what happens when cool air hits the hot vaporized fuel - does it condense the fuel back into larger droplets. If so that would negate the effect. To my way of thinking what is needed is hot vaporized fuel suspended in cold air - I'm no where near smart enough to solve this problem.
George ( down under)

    George, wasn't the idea of the pre-combustion chamber used in the
    original Honda Civic, something along this line of thinking.  The
    car was achiving over 50 miles to the gallon at that time.  JohnD

        ----- Original Message -----
        *From:* George Lendich <mailto:lendich@aanet.com.au>
        *To:* Rotary motors in aircraft
        <mailto:flyrotary@lancaironline.net>
        *Sent:* Thursday, December 10, 2009 3:19 PM
        *Subject:* [FlyRotary] Re: Ink Jet Technology Injectors

        If the fuel could be vaporized just prior to injection, and
        within the motor (acting as containment) - the problem would
        be solved. I don't know of anyone with the answer yet.
        George ( down under)

                 Group,
                    Possably a future fuel injector system for our use
            even though designed primarily
                for heavy
            fuels.................Interesting................
            Watch This: From Ink Jets to Jet Engines

            Watch This: From Ink Jets to Jet Engines
            <http://click.email.globalspec.com/?qs=de0c2e051f93e7740bb35a41f22eb1a72f04887eccc2d44bc3ec5b0e8ecab9bc6be6ec74e8a235e0>
            A maker of propulsion systems for unmanned aerial vehicles
            discovered a novel use for ink jets: they've created a
            MEMS fuel injection system that can improve small engine
            efficiency. This video explores how the device produces
            much smaller fuel droplets
            <http://click.email.globalspec.com/?qs=de0c2e051f93e774bdf2b874a06cbd29967f2ce5af1a95eac33fb3da20d4d7317da89384d96a9a5f>
            — down to 10 microns — helping improve fuel mix and
            combustion.

            http://www.nwuav.com/video_MEMS.html
            --
            Kelly Troyer
            "Dyke Delta"_13B ROTARY Engine
            "RWS"_RD1C/EC2/EM2
            "Mistral"_Backplate/Oil Manifold