MegaSquirt Question ... Options

[SirAndy]

If it's really not been done before, I'd salute you.

the only thing it has in common with a wankel engine is the fact that something is rotating ...

no valves, no pistons, no crank, no camshaft, no pushrods

the force put on the rotors goes straight to the transmission ...
obviously, at this point, i'm not willing to share the design, altough Mueller & Brad have seen it. i'd like to get a prototype running first ...

(IMG:style_emoticons/default/smash.gif) Andy

PS: yes, a constant flow of air/fuel seems the way to go, especially because i will have 32 compress/spark/detonate/exhaust per revolution.
it should even be possible to "force" the air/fuel in there. think Kompressor!

[TimT]

Andy, you want to run injectors at a max of 85% duty cycle. You may have to double,triple or more the number of injectors. Since there will be so many firing events in the engine, batch fire is suitable.

You could just make a few more injector drivers, make them in seperate boxes if need be. ie piggy back the exisitng drivers

[physician]

i can't wait to learn more about it! (IMG:style_emoticons/default/clap56.gif) (IMG:style_emoticons/default/rocking nana.gif) keep on the good work and plz keep us update!!

(IMG:style_emoticons/default/aktion035.gif) to your ingeniosity!

[Andyrew]

Giant turbo with big fins where the combustion pushes the turbine wheel to spin thus you need many firing per second which is what your concerned about....

Am I close?

[Mueller]

Giant turbo with big fins where the combustion pushes the turbine wheel to spin thus you need many firing per second which is what your concerned about....

Am I close?

you've described a very basic turbine, jet engine.....

if you have any extra turbochargers, you can build one yourself (IMG:style_emoticons/default/smash.gif)

[Andyrew]

Mike, I know I have.. lol

I've got a few turbo's... ya...

Hmmm

[Aaron Cox]

my unc has a turbine race car.... insane power!

[lapuwali]

you've described a very basic turbine, jet engine.....

Yup. The "turboprop" engine, used on small airliners and on many helicopters, uses a turbine to directly drive a shaft to turn a prop/rotor. Turbines have been tried in cars, with indifferent success. Part of the problem is horrible throttle lag. On the Rover/BRM turbine car raced at Le Mans in '62 or thereabouts, throttle lag was such that there were several seconds between pushing on the throttle and getting a response from the engine. You had to start "accelerating" while still braking for the turn. On a fast course like Le Mans, this was doable. On a tight course, forget it. A turbine was also raced at Indy at least once, where it was much better suited.

A much better approach is to use a turbine to drive an on-board generator so you have a gas-powered electric. Volvo made a concept car driven this way a few years ago.

the force put on the rotors goes straight to the transmission ...
obviously, at this point, i'm not willing to share the design, altough Mueller & Brad have seen it. i'd like to get a prototype running first ...

Well, if you won't let me do it, do a careful search before you get all interested in doing this in some way that will make money. Prior art does not have to have been patented for it to invalidate a patent application. So many wacky ideas have been tried, that there's an excellent chance yours has also been tried. No disrespect, but there's not much point in keeping it secret if you can't make a buck on the idea, and you can't reasonably make a buck on it without a patent.

[SirAndy]

and you can't reasonably make a buck on it without a patent.

at this point it's not about the money. i just want to proof to myself that my idea is going to work.

we'll talk money and patents after i blew up someone elses garage ...
(IMG:style_emoticons/default/biggrin.gif) Andy

[ajracer]

Sir Andy Interesting Post:

I can't say for sure that I really understand what you are
trying to design other than an engine with 32 ? power
strokes per revolution ? and something that will rev to
10,000 rpm. (I like the 10K part).

I do know of a guy in Toronto area that has fabricated
a custom intake/valve setup than he runs on a rotary
engine. It is very unique and extremely powerful setup.
I understand he has also been involved behind the scenes
with providing experimental info and designs the Mazda
of his intake system. (I believe he uses Electromotive
FI system that is fully programmable). If you want more
info please PM for info. All the Best, I must get back to
work on my LT1 Chev V8 conversion as winter is starting
to come to Toronto.

Allan