pottyengineering Dake Engine

[Stewart HartParticipant @stewarthart90345]

[Stewart HartParticipant @stewarthart90345]

Just started building a model of a Dake engine

Dake engines was a very sucesful US design, It has a very novel twin square cylinder design working inside each other, being none dead centre it has almost instant reversing, hence it was used for power steering in ship and large American built traction engines, it could be run on steam or air and was also used in hoyst and ship deriks

A few pics

Inner piston complete

Stew

[NJHParticipant @njh]

That looks interesting Stewart. Do you intend to give a blow by blow account like Jason's recent thread?

Regards

Norman

[Stewart HartParticipant @stewarthart90345]

Thanks for your interest Norman

I'll probably write it up for ME, but I will post some progress pics her

Things are progressing slowly at the moment as I've other projects on the go. Stew

[David Clark 13Participant @davidclark13]

Hi Stewart

That looks very interesting.

Series is welcome.

regards David

[Stewart HartParticipant @stewarthart90345]

Cheers David

Made some more progress with the outer piston

Stew

[Sub MandrelParticipant @submandrel]

Hi Stew,

That's certainly different!

Neil

[Stewart HartParticipant @stewarthart90345]

Yes it certainly is different Neil, it calls for some interesting set ups, I don't realy know how this one will end up, but you have to try to find out.

Got the back plate finished off apart from a bit of tarting up.

Stew

[Stewart HartParticipant @stewarthart90345]

Got a few more bits made. I've reached that stage in the build when self doubt starts to kick in, will it work is this bit Ok etc etc and things have advanced where all you can do is "keep calm and carry on"

Outer cylinder

Assembled parts so far made.

[Stewart HartParticipant @stewarthart90345]

Came across this picture of a Dake engine being used to power a winch, I think this set up would add some interest to the model if only I could drop on some geers.

Stew

[Ady1Participant @ady1]

A bit about them here including an inside view of the mechanism

 

Edited By Ady1 on 07/11/2012 12:24:17

[Stewart HartParticipant @stewarthart90345]

Thanks for the input Andy.

The more I look into the history of the Dake the more fasinating it becomes, it was certainly put to use in a wide range of aplication, apparently they made over 10,000 engines as part of the war effort and were extensivly used in Liberty Ships and the Big Tank Landing Craft.

Came across a pic of this rusting hulk apparently it a Dake Engine powered fork lift truck.

[Stewart HartParticipant @stewarthart90345]

Got the recesses machined in the cylinder for the inner piston flange apparently this helps with sealing of the ports.

[Stewart HartParticipant @stewarthart90345]

Made the crank yesterday and I was thinking only the fly to go and we can give it a try, then I remembered I had a spare machined up 4" fly wheel, why not give it a go.

And it works which is a big releaf as the valve geometery was very much based on guess work..

I'll post a video some time over the week end

A happy Stew

[Stewart HartParticipant @stewarthart90345]

http://youtu.be/o2qRX_pSJao

[TerrydParticipant @terryd72465]

Hi Stew,

 

 

Thanks, I really enjoyed that so I hope that you don't mind me putting your success up here, If you do I'll remove it if you get in quickly so that I can edit the post.

 

 

 

 

Best regards

 

Terry

Edited By Terryd on 10/11/2012 12:26:54

[Ady1Participant @ady1]

oops…

Edited By Ady1 on 10/11/2012 12:31:12

[Stewart HartParticipant @stewarthart90345]

Thanks Terry

I just can't figure out how to do that

Stew

[Sub MandrelParticipant @submandrel]

Hi Stew,

Someone who can find a weirder engine than Anthony Mount!

Could you do a video of it being rotated by hand with the cover off?

Neil

[Stewart HartParticipant @stewarthart90345]

Hi Neil

I'll see what I can do tomorrow

Stew

[Stewart HartParticipant @stewarthart90345]

Thanks Guys

By popular request her's the vid of the innards, hope you don't think my explination is too clumsy.

Stew

Edited By Stewart Hart on 12/11/2012 11:06:10

Edited By Stewart Hart on 12/11/2012 11:07:27

[Ian PParticipant @ianp]

Stewart

Nicely made, well done, your explanation and demonstration video is really good too.

I have been following the thread and it only now I realise that its a motor and not actually an engine (I'm not trying to be pedantic) but before I knew I kept looking to see where the spark plug was!

I see the original was made by the 'Dake Engine manufacturing company' so maybe they made engines as well.

I can see that it is probably not very efficient on air but on oil it would be good.

Ian

[Stewart HartParticipant @stewarthart90345]

Made some progress on the two way valve, still needs a bit more sculpting

Stew

[magpieParticipant @magpie]

Nice one Stew ! Some of those valve bits look like bits on my fibre optic clock.!!!!!!

Cheers Derek

[Stewart HartParticipant @stewarthart90345]

Cheers Dek I'll try and nip round for a natter.

Made the pully this week from a bit of 4 1/2" steel tube and 5mm plate.

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