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Message started by Starlifter on 11/19/12 at 13:39:16

Title: Tiny Diesel Engine
Post by Starlifter on 11/19/12 at 13:39:16

OPERATIONAL V-12 DIESEL ENGINE THAT FITS IN THE PALM OF YOUR HAND.

Took 1220 hours (a year and a half?) to make the 261 pieces. Note the end-loaded crankshaft into the block (like an Offy), 12 individual cylinder heads, TINY rods and pistons, dual "underhead" cams with pushrods to rockers in the heads. And, he did break-in runs using an electric drill driving the crankshaft!

Even if you're not an engineer, you'll love this!

http://www.wimp.com/tiniestengine/

Title: Re: Tiny Diesel Engine
Post by gerald.hughes on 11/19/12 at 14:28:16

A thing of true beauty. And, I bet it puts out as much hp as our Savages.

Title: Re: Tiny Diesel Engine
Post by Arizuno on 11/19/12 at 14:57:56

WOW! I'm fresh out of adjectivos for this one...

Title: Re: Tiny Diesel Engine
Post by 360k+ on 11/19/12 at 15:22:42

Here's another. This one is a 4 stroke single with spark plug ignition. It has a rope (well, string) pull start. I think it had a 1/8 inch piston.

http://i1266.photobucket.com/albums/jj534/gary95329/Misc/Luhrs1cylA.jpg

Title: Re: Tiny Diesel Engine
Post by Serowbot on 11/19/12 at 15:31:06

Oh good,.. will that power my nose hair trimmer?... :-?...

Title: Re: Tiny Diesel Engine
Post by 360k+ on 11/19/12 at 15:40:38

7264736E76636E75010 wrote:

Oh good,.. will that power my nose hair trimmer?... :-?...

For YOUR nose hair? Probably not!

Title: Re: Tiny Diesel Engine
Post by Serowbot on 11/19/12 at 15:44:59

Do they make a turbo model?... :-/...

Title: Re: Tiny Diesel Engine
Post by justin_o_guy2 on 11/19/12 at 18:04:13

I didnt see rings on the pistons,, Im not so sure it even runs,

Title: Re: Tiny Diesel Engine
Post by 360k+ on 11/19/12 at 18:26:10

0A151314090E3F0F3F07151952600 wrote:

I didnt see rings on the pistons,, Im not so sure it even runs,

A lot of the old model airplane motors didn't have rings either (for instance, small COX units). I'm not sure what the clearance or tolerance was, but the pistons were very well fitted to the bore. Of course, these were 2 strokes and so didn't have an oil separation problem. I wore a few of those out, and they held pretty good compression even after a fair amount of use. On these small machined demo motors they may not even put oil in the crank or worry about blowby, but even so, it would be a splash distribution system at best.

Title: Re: Tiny Diesel Engine
Post by justin_o_guy2 on 11/19/12 at 18:31:39

Im well aware of 2 stroke plane engines w/ no rings. I have an Enya 35 Ive put over 6 gallons thru. But these pistons had ring grooves. Ive never seen a scale diesel & ever model engine running on doesel Ive seen has a threaded plate, to screw up & down, to drop & raise compression.

Title: Re: Tiny Diesel Engine
Post by 360k+ on 11/19/12 at 18:46:29

Yep, seen those little screw type diesels. Always wanted one too because you didn't need fiddle with a glow plug or battery. I remember years ago, there was a company who even made a Wankel rotary. I once saw one in a model shop, and wanted to buy it just to take home and disassemble. :)

Title: Re: Tiny Diesel Engine
Post by justin_o_guy2 on 11/19/12 at 19:31:26

I had a Cox .010. I never put it on a plane. Id just fuel it up & run it. Holding it by the fuel tank. It was just cool.,.

Title: Re: Tiny Diesel Engine
Post by thumperclone on 11/19/12 at 22:30:37

star U shure its diesel?

work of the machinests' art never the less

Title: Re: Tiny Diesel Engine
Post by arteacher on 11/20/12 at 04:47:10

7C7A6962222E2829221B0 wrote:

[quote author=0A151314090E3F0F3F07151952600 link=1353361156/0#7 date=1353377053]I didnt see rings on the pistons,, Im not so sure it even runs,

Title: Re: Tiny Diesel Engine
Post by ToesNose on 11/20/12 at 06:48:02

I can think of MANY things better to do with my time, but it is quite impressive none-the-less ;)

Title: Re: Tiny Diesel Engine
Post by 360k+ on 11/20/12 at 07:52:56

293528302D382F3E313233385D0 wrote:

star U shure its diesel?

work of the machinests' art never the less

There's no ignition, that I can see anyway. It is strange tho, because if it had the compression required for deese, you'd think it would be hard to turn over.

Title: Re: Tiny Diesel Engine
Post by Paraquat on 11/20/12 at 09:07:18

I had seen this before and I thought it was compressed air powering it.
Not sure it actually combusts.

--Steve

Title: Re: Tiny Diesel Engine
Post by Serowbot on 11/20/12 at 09:15:46

I can't wait 'till the Chinese see this,.. copy it,.. and start selling them at the 99 cent store...
I'm gonna' buy two!... :-?...

Title: Re: Tiny Diesel Engine
Post by Cavi Mike on 11/20/12 at 10:48:29

I wondered how he planned on running it since he geared the camshaft 1:1 with the crank. It wouldn't run on its own even if he had fuel and spark. It's run on compressed air. Too bad.

Title: Re: Tiny Diesel Engine
Post by Dave on 11/20/12 at 11:02:49

Yep, I agree.....compressed air. The pistons are pushed down on each stroke by the compressed air and exhaust on each up stroke. That is why the cams are geared 1:1.

The maching skill is incredible.....I have trouble getting 2 holes to line up very well when I get my drill out! :o

Title: Re: Tiny Diesel Engine
Post by Serowbot on 11/20/12 at 11:41:13

Then there's this guy... :-?...
[media]http://www.youtube.com/watch?v=SeUMDY01uUA[/media]

Title: Re: Tiny Diesel Engine
Post by Ed L. on 11/22/12 at 15:19:25

I've built a couple model steam engines from store bought castings and am totally amazed at the skill this guy has. Even if it is a compressed air engine it is just beautiful, I'm in total aw.