Potty Over Crank Wall Engine

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lordedmond:
I have activated the single brain cell and gave it more thought with it assisted shut by the gas ( steam/air ) it may not reopen or the other way round it would not open

Whisky try some http://www.glenfarclas.co.uk/en/pages/78,105_Cask_Strength.html

it is very good, dark like rum and undiluted from the cask about 14 degrees proof :) :) :)

That must be why only one cell is active :D

Stuart

srm_92000:
Interesting one this :scratch:
In respect of the butterfly valve-
I would have thought that if pivoted in the middle, air flow would neither open nor close it being the same area on both sides.
But... just playing about I now have come to the conclusion it would always try to close it, at least until it were nearly shut.
It's the same both ways though so turning it round will make no difference :scratch:, again if, as I assumed, it is pivoted in the middle?

If I've got my head round things right the spring is needed to hold it open then the balls flying out against the resistance of the spring close the valve, so, spring strength varies how much it closes at a given speed.

Nice build anyhow :thumbup:

Steve.

sbwhart:
Thanks for your input Steve/Stuart it's a bit of a brain teaser :scratch:.

Stuart i've never had a liking for whisky or whiskey, I'm a beer and wine man myself :beer:.

Thought I'd go :offtopic: and post a few pics of Islay

Stormy sea

There's lots of Gray seals about the Common seal are not so common :scratch:

They like to lie on rocks just under the surface and look like huge black Bananas.

Back on topic I changed the spring on the governor for something a bit lighter and made a video the shot looking down is a bit out of focus but you can see the butterfly valve working.

Enjoy

Stew :nrocks:

NickG:

--- Quote from: sbwhart on May 27, 2011, 07:25:55 AM ---Didn't know ther was two spellings :scratch: , but they both give the same result:- drink too much and you fall over :D

--- End quote ---
:lol: I can't stand the stuff.

Quick question Stew relating to my flippant comment before; in your video it sounds like you've got the valve closed by the spring i.e. when the balls are in? If that's the case, the faster the engine goes, the more the balls will swing out and the more the valve will open which will make it go faster. Shouldn't it work the other way around so as you put a load on the engine and it slows down, the balls move inwards due to less speed which opens the valve more to give the extra power necessary to drive the load?

Sorry if it's me getting my knickers in a twist. Can't quite see down the hole whether it's opening or closing./

Cheers

Nick

sbwhart:
Hi Nick

Sorry I missed your ? before,

I've had the same ? asked on HMEN the valve does close the faster the engine goes, you can't see this very well on the video as your looking down a hole and its not in focus, I'll have to do a bit of experimenting with it regards to pully size, spring loading, and input air pressure via a control valve, and running speed.

This morning I've just completed strippped the engine down for painting and a rebuild, I'll be adding a control valve, oilers, and bling as I build it back up, I have an head ache in the crank to fix as well: I'm also going to build it a brick wall :bang:

Stew

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