Search found 9 matches

by TheGermanDude
Wed Sep 03, 2014 3:20 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Trying to make an Andy Ross B20
Replies: 17
Views: 11438

Re: Trying to make an Andy Ross B20

Hi, "How do we work out the weight of the counter weight that the yoke turns, for it to be balaced. Is there a way we can calculate it with with our piston and rod size." Yes. You must know the mass and center of mass of all rotating parts. Look at this: http://en.wikipedia.org/wiki/Lever http://en....
by TheGermanDude
Mon Sep 01, 2014 1:54 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to seal a beta type engine? Need help!
Replies: 4
Views: 4574

Re: How to seal a beta type engine? Need help!

Hi,

try using a fine whire for the displacer connecting rod. so the hole in the working piston can be smaler.

The working piston must fit perfect in the working cylinder and have low friction. It must be created with high precision.

greetings
by TheGermanDude
Mon Sep 01, 2014 1:48 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My first stirling engine (with pictures and videos)
Replies: 9
Views: 4899

Re: My first stirling engine (with pictures and videos)

Hi, questions to the RPM: Can the RPM be conmtrolled by changing the angle of the crankshaft? I expect a greater angle make the engine faster, a smaler make is slower? Right now it got ~90°. Maybe a slower running engine will have more power? It got already watercooling, no watercycle, but evaporati...
by TheGermanDude
Fri Aug 29, 2014 6:50 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My first stirling engine (with pictures and videos)
Replies: 9
Views: 4899

Re: My first stirling engine (with pictures and videos)

Here you see the engine on a very smal candle.

[youtube][/youtube]

Using a bigger flame it becomes very fast.

What do you think about it?

It is already working very fine, but how can i Improve it?
by TheGermanDude
Fri Aug 29, 2014 5:28 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My first stirling engine (with pictures and videos)
Replies: 9
Views: 4899

Re: My first stirling engine (with pictures and videos)

the new piston in use works mouch better, work cylinder is replaced to the center.
better displacer is in use too.

The newly designed heat exchanger did improve heat throughput and boosts power.
Unbenannt2.png
Unbenannt2.png (7.29 KiB) Viewed 4857 times
Now i will make a video.
by TheGermanDude
Thu Aug 28, 2014 11:34 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: My first stirling engine (with pictures and videos)
Replies: 9
Views: 4899

Re: My first stirling engine (with pictures)

Guten Tag, today i made a big advance. The engine runs. But it needs two tea candles. I will try to improve it today. 1. use more fine steel wool and i will try not to compress the steel wool for the displacer. 2. relocate the connecting rod of the displacer. I will drill it trough the piston. 3. ma...
by TheGermanDude
Thu Aug 28, 2014 11:36 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My first stirling engine (with pictures and videos)
Replies: 9
Views: 4899

Re: My first stirling engine (with pictures)

This will become the work cylinder. the piston is made of gypsum, frapped with aluminium foil. http://s1.directupload.net/images/140828/csrhaijn.jpg I am not happy with the piston. It will look like this. http://s7.directupload.net/images/140828/4ie98qct.jpg I wanna use hold the crankshaft like that...
by TheGermanDude
Thu Aug 28, 2014 7:51 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My first stirling engine (with pictures and videos)
Replies: 9
Views: 4899

Re: My first stirling engine (with pictures)

My displacer is finished, he is made of steel wool.
Image
by TheGermanDude
Thu Aug 28, 2014 3:51 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My first stirling engine (with pictures and videos)
Replies: 9
Views: 4899

My first stirling engine (with pictures and videos)

Guten Tag, I' ve been reading in this forum quit a while and i did watch some videos about stirling engines. It looks very cool. I build my first engine now. I hope you will like it. It will be a beta type engine. It is going to be made of metal cans. I want it to run on a smal tea candle. The displ...