Model Engine Maker

General Category => Chatterbox => Topic started by: steamer on January 09, 2019, 02:00:38 AM

Title: Engine in a bottle?
Post by: steamer on January 09, 2019, 02:00:38 AM
Ill just leave this right here
Title: Re: Engine in a bottle?
Post by: crueby on January 09, 2019, 02:22:38 AM
Round bottle, better be a radial...   :Jester:
Title: Re: Engine in a bottle?
Post by: Art K on January 09, 2019, 02:40:35 AM
Soap IC engine?
Art
Title: Re: Engine in a bottle?
Post by: steamer on January 09, 2019, 12:50:52 PM
I was thinking perhaps a Ray Hasbrouck twin oscillator.     Perhaps scaled to have the parts fit.
Title: Re: Engine in a bottle?
Post by: Robert Hornby on January 09, 2019, 10:04:14 PM
I must be stupid as this is totally lost on me. All I can see is water and bubbles in  bottle.  :shrug: :shrug: :shrug:
Title: Re: Engine in a bottle?
Post by: MJM460 on January 09, 2019, 10:46:58 PM
Perhaps its generating CO2 to drive an engine without the compressor noise, or acetylene for a hit and miss. 

I am with you Robert.  I suspect an in joke, but I am on the outer?

MJM460
Title: Re: Engine in a bottle?
Post by: steamer on January 09, 2019, 10:54:12 PM
I must be stupid as this is totally lost on me. All I can see is water and bubbles in  bottle.  :shrug: :shrug: :shrug:

Nope...you saw correctly, just an new emptied and clean bottle.   I was floating an idea to perhaps generate conversation about the subject line.

Title: Re: Engine in a bottle?
Post by: steamer on January 10, 2019, 12:03:40 AM
I must be stupid as this is totally lost on me. All I can see is water and bubbles in  bottle.  :shrug: :shrug: :shrug:

You did see my post directly before yours now did you?   
Title: Re: Engine in a bottle?
Post by: sbwhart on January 10, 2019, 07:18:42 AM
Something like this

(https://i.imgur.com/M07Zua8m.jpg)


 :Jester:

Stew
Title: Re: Engine in a bottle?
Post by: steamer on January 10, 2019, 09:58:47 AM
Something like this

(https://i.imgur.com/M07Zua8m.jpg)


 :Jester:

Stew
Yes!   But running! On compressed air
Title: Re: Engine in a bottle?
Post by: PJPickard on January 10, 2019, 11:14:36 AM
I wonder if you could do a hot air engine in a bottle?
Title: Re: Engine in a bottle?
Post by: steamer on January 10, 2019, 11:17:46 AM
I wonder if you could do a hot air engine in a bottle?

That would be a challenge.  I think the waste heat issue would make that challenging to say the least.   I was thinking perhaps something more attainable like an occillator running on compressed air.
Title: Re: Engine in a bottle?
Post by: Dan Rowe on January 10, 2019, 02:00:07 PM
Dave,
I am building a kit engine right now with tiny slotted screws which are a pain not in a bottle, I am thinking that Allen head cap screws will be the simplest to assemble with in a bottle. What is the size of the opening?

Dan
Title: Re: Engine in a bottle?
Post by: steamer on January 10, 2019, 04:38:06 PM
Tiny   havent measured it, but about 3/4 inch.      19mm or so
Title: Re: Engine in a bottle?
Post by: BillTodd on January 10, 2019, 08:57:41 PM
I remember seeing a small oscillating engine jn the science museum london that would have fit through the neck of that bottle!

Building one that is bigger inside that at least looks like it  none of it would fit through the neck is the problem.

What about self assembly parts of brass plate with embedded miniature magnets ?  A carefully finish pair of plates can be attached with almost no obvious joint , so a large base could be made from smaller pieces.

Similarly, just as large steam-engine flywheels are made in section a small one could be made to almost self assemble with magnetic sections.

The oscillating cylinder could pivot on magnet  etc.etc.

Title: Re: Engine in a bottle?
Post by: crueby on January 10, 2019, 10:07:13 PM
It should be a Bottle Engine, to go in a bottle!
(https://www.pmmodelengines.com/v1/wp-content/uploads/2013/09/STEAM-ENGINE-5.jpg)

Title: Re: Engine in a bottle?
Post by: steamer on January 10, 2019, 10:44:58 PM
It should be a Bottle Engine, to go in a bottle!
(https://www.pmmodelengines.com/v1/wp-content/uploads/2013/09/STEAM-ENGINE-5.jpg)



Actually have one of those...but would need a BIG bottle, and its not self starting

Title: Re: Engine in a bottle?
Post by: steamer on January 10, 2019, 10:47:03 PM
I remember seeing a small oscillating engine jn the science museum london that would have fit through the neck of that bottle!

Building one that is bigger inside that at least looks like it  none of it would fit through the neck is the problem.

What about self assembly parts of brass plate with embedded miniature magnets ?  A carefully finish pair of plates can be attached with almost no obvious joint , so a large base could be made from smaller pieces.

Similarly, just as large steam-engine flywheels are made in section a small one could be made to almost self assemble with magnetic sections.

The oscillating cylinder could pivot on magnet  etc.etc.

Yes I think just about any oscillator could do, but your right about the flywheel...and it would need to be big...MUCH bigger than the bottle neck...for the right effect.....hmmmmm
Title: Re: Engine in a bottle?
Post by: b.lindsey on January 10, 2019, 11:02:25 PM
I still say find a glass blower, cut the neck off, build the engine then reattach the neck.  :lolb:

Bill
Title: Re: Engine in a bottle?
Post by: steamer on January 10, 2019, 11:11:38 PM
I still say find a glass blower, cut the neck off, build the engine then reattach the neck.  :lolb:

Bill

Wellllll  Yeah....we're just jawing about it..  but it did get me thinking.

Dave
Title: Re: Engine in a bottle?
Post by: b.lindsey on January 11, 2019, 12:14:45 AM
Good enough glass weld and who's to know  :shrug:

Bill
Title: Re: Engine in a bottle?
Post by: crueby on January 11, 2019, 01:24:05 AM
Good enough glass weld and who's to know  :shrug:

Bill
Its always fun to hear people who think that wooden ships in bottles were done by cutting and refusing the glass, till they are told the melting point of glass...   
Title: Re: Engine in a bottle?
Post by: mklotz on January 11, 2019, 03:09:05 PM
You might overcome the self-starting problem by using a ferrous slug in a brass flywheel and an external (to the bottle) rotating magnet to remotely revolve the flywheel.
Title: Re: Engine in a bottle?
Post by: steamer on January 11, 2019, 04:17:37 PM
You might overcome the self-starting problem by using a ferrous slug in a brass flywheel and an external (to the bottle) rotating magnet to remotely revolve the flywheel.

Now that is a thought.....though..I like the self starting aspect...of course there needs to be a tube to the engine either for inlet compressed air, or outlet exhaust air....probably through the cork.

Dave