Unusual Engines

[CamaroSpike23]

Originally Posted by MisterCamaro69

That's part of what we discussed, he'll be in here eventually and can tell you about his dual intake idea.



Link to my avatar if you'd like to know more about the amazing engineers of yesteryear.
The Trebert Axial Engine
http://www.dself.dsl.pipex.com/museu...g/axial-IC.htm

at me for never asking what your avatar was. I thought it was some "piston gun" or something like that. that axial engine is freaking awesome!

Originally Posted by MisterCamaro69

Ogura clutched superchargers...

http://www.oguraclutch.co.jp/english.../sc_gaiyou.htm

interesting.

Originally Posted by derklug

When Isuzu came out with their turbo I-Mark, it limited boost untill you had 3000 miles. Owners used to come in and say that after their first oil change the car just woke up.

our owners are saying the same thing.... but there's a different reason for that.

Originally Posted by MisterCamaro69

Interesting, but I want to see the clutch kick on and off




The same as the GT500 setup most likely?

I can see how this setup would work great on a marine application with a planing hull... Use the torque to get it on plane, then kick off the compressor to cruise.

or to use it like nitrous. only you never have to refill the bottle




I gotta take care of a few things, I'll be back in a bit to comment more

[Mr Twisty]

The Trebert cylinders rotated around the output shaft, crazy stuff. I remember a radial airplane engine that did that, too many issues to work around with a design like those, but those guys made them work!

That idea I mentioned. Have you ever seen a V8 where 2 of the cylinders acted as compressors for the other 6 cylinders? That make sense?

[MrIcky]

The blower on the mad max engine was just for show though. It was spun up with a drill motor. But some superchargers can be clutched out as others have said, but I don't think the kind of blower on the Mad Max car can because there's no way to bypass it. You'd just be spraying gas down on top of the charger blades.

[derklug]

Originally Posted by MisterCamaro69

The Trebert cylinders rotated around the output shaft, crazy stuff. I remember a radial airplane engine that did that, too many issues to work around with a design like those, but those guys made them work!

That idea I mentioned. Have you ever seen a V8 where 2 of the cylinders acted as compressors for the other 6 cylinders? That make sense?

I have seen mobile service trucks that use a cutout so the cylinder compresses air for air tools, but only on diesels. I don't think an engine would put out enough air to act as forced induction.

[Mr Twisty]

Originally Posted by derklug

I have seen mobile service trucks that use a cutout so the cylinder compresses air for air tools, but only on diesels. I don't think an engine would put out enough air to act as forced induction.

Since it would be a pump only, you would get 2 compressions for 4 strokes.
How many PSI does ~9.0-1 c.r. create? With no losses you would be raising each cyl. volume to ~170% of atmospheric pressure.... ~23psi intake pressure.

10psi boost. Or is my math flawed?

[DGthe3]

Originally Posted by MisterCamaro69

Since it would be a pump only, you would get 2 compressions for 4 strokes.
How many PSI does ~9.0-1 c.r. create? With no losses you would be raising each cyl. volume to ~170% of atmospheric pressure.... ~23psi intake pressure.

10psi boost. Or is my math flawed?

You are missing something. Lets say you have 8L of total displacement for your V8. The 6 cylinders providing power would draw in 6L of air at wide open throttle, if naturally aspirated. The two compressor cylinders could provide up to 4L of air per cycle combined ... this is bad. Not to mention the timing of the pulses wouldn't match the demand. Pressure would be provided every 180 degrees of rotation, yet required at intervals of 120 degrees. The engine would be starving for air. The only way I could see it working is if there were as many compressors as power cylinders, and two compressors were synced with each other to provide a double air charge. This charge would then be timed such that just as the compressor valves open, the intake valve opens on one of the cylinders. That would create roughly a 14 psi boost, yet with greater losses than with a regular roots type supercharger.