Author Topic: Four-cylinder Inline Structure steam engine plan (Read 7398 times)

galglg · « **on:** July 20, 2015, 10:25:07 AM »

This is a new challenge, I'm not sure it is a perfect machine, but it is certain that I must be able to make it work!
Cylinder unit is now and I want to fight it on the basis of a four-cylinder out. This is a big project. It needs a new crankshaft.

peatoluser · « **Reply #1 on:** July 20, 2015, 10:45:50 AM »

welcome to the forum galglgl

some very nice machining there.
a few questions if I may
looks like quite a small engine. what size bore & stroke?
what is the purpose of the plastic block in photo's 1 & 3?
what are the brass rivets or screws on the crank webs for?

looking forward to more photos

please post an introduction and tell something about yourself - interests - machines you use etc.

welcome aboard

peter

kev · « **Reply #2 on:** July 20, 2015, 11:51:16 AM »

Hi Jin

Guys just a note Jins English is not great so don't be offended if he does not answer detailed questions I know he prefers to let his photos do the talking.

b.lindsey · « **Reply #3 on:** July 20, 2015, 01:39:59 PM »

Hi Jin and welcome to MEM. Lovely pictures and some very nice machine work obviously. Looking forward to seeing more.

Bill

galglg · « **Reply #4 on:** July 20, 2015, 03:53:50 PM »

galglg · « **Reply #5 on:** July 20, 2015, 03:59:18 PM »

Quote from: peatoluser on July 20, 2015, 10:45:50 AM

welcome to the forum galglgl

some very nice machining there.
a few questions if I may
looks like quite a small engine. what size bore & stroke?
what is the purpose of the plastic block in photo's 1 & 3?
what are the brass rivets or screws on the crank webs for?

looking forward to more photos

please post an introduction and tell something about yourself - interests - machines you use etc.

welcome aboard

peter

Hi peter, cylinder outer diameter of 13MM, crankshaft stroke 12MM, the plastic block is fixed to the crankshaft angle between the direction of the fixed copper nails.
I do not use too many tools. Only Bench drilling copper sheet laser cutting.
Jin

galglg · « **Reply #6 on:** July 20, 2015, 04:01:44 PM »

Thank you for kev,
Thank you for Bill.

kev · « **Reply #7 on:** July 20, 2015, 05:14:06 PM »

always a pleasure to see you posting Jin

fumopuc · « **Reply #8 on:** July 20, 2015, 07:53:05 PM »

Hi Jin, welcome to the forum. A very impressive engine you have build there. A lot of tiny parts.

Don1966 · « **Reply #9 on:** July 20, 2015, 10:37:52 PM »

Hi Jim and welcome to the forum! Your work does say a lot of words and very impressive. Thank you for sharing this with us.

Don

DavidF · « **Reply #10 on:** July 21, 2015, 04:54:06 AM »

Oh dang, there it goes. Anyone have a towel? I have drool all over the place

galglg · « **Reply #11 on:** July 21, 2015, 05:35:52 AM »

Thank you for Achim,
Thank you for Don,
Thank you for DavidF,

galglg · « **Reply #12 on:** July 21, 2015, 05:36:04 AM »

Roger B · « **Reply #13 on:** July 21, 2015, 12:31:50 PM »

Welcome to the forum

A good looking engine

galglg · « **Reply #14 on:** July 21, 2015, 03:14:03 PM »

tvoght · « **Reply #15 on:** July 21, 2015, 03:54:45 PM »

Thanks for sharing this build with us Jin. And welcome to the forum!

--Tim

Don1966 · « **Reply #16 on:** July 21, 2015, 05:11:05 PM »

Jim she's looking stunning but I do have a question. I notice your exhaust porting that they are all linked together on one manifold. Do you have some sort of ball check system on this? This is an amatuer question and wouldn't that put air and cause back pressure into the other cylinders if you don't? I do realize that the exhaust is open but I am curious.

Regards Don

kev · « **Reply #17 on:** July 21, 2015, 05:20:10 PM »

see your point Don but as its open to the atmos would the back pressure be significant as it would only be equivalent to the pipe "losses" which as long as its sized about twice the exhaust port size would be close to zilch

Bearcar1 · « **Reply #18 on:** July 21, 2015, 05:58:40 PM »

Welcome Jin,,,,,, may I just say what a beautiful piece of work!! Wow! Is this engine from your own design or are you erecting it from a commercial plan set? I would like to purchase a set of the drawings if they are available. Keep up the marvelous work and thank you for all of the pictures….

BC1
Jim

galglg · « **Reply #19 on:** July 21, 2015, 06:24:14 PM »

galglg · « **Reply #20 on:** July 21, 2015, 06:32:12 PM »

This is to help upload videos from Jan

https://www.youtube.com/embed/a-FhQRgRoNw

<iframe width="640" height="360" src="

<a href="https://www.youtube.com/watch?v=a-FhQRgRoNw" target="_blank">http://www.youtube.com/watch?v=a-FhQRgRoNw</a> frameborder="0" allowfullscreen></iframe>

Don1966 · « **Reply #21 on:** July 21, 2015, 07:53:42 PM »

Jim that is just awesome and it runs so smooth. ThaT is just beautiful and impressive work. And ........I like.......................

Don

b.lindsey · « **Reply #22 on:** July 21, 2015, 11:52:41 PM »

Beautiful...simply beautiful!!!

Bill

cfellows · « **Reply #23 on:** July 22, 2015, 04:38:17 AM »

Very nice indeed. Excellent craftsmanship.

Chuck

kvom · « **Reply #24 on:** July 22, 2015, 06:31:37 PM »

Looks as if it might be set up for a RC boat. Really nice work.

Roger B · « **Reply #25 on:** July 22, 2015, 07:53:50 PM »

Very nicely done and a good runner

Congratulations

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Author Topic: Four-cylinder Inline Structure steam engine plan (Read 7398 times)