Stirling Engine

Product Description

This is an interesting model toys, this stirling engine mode uses the heat by alcohol lamp to generate electric. The electric will light the led light to emit different colors. It is a great opportunity for you to investigate how stirling engine works. It can inspire your curiosity and creativity.
It is also a wonderful gift for your friends, kids and students!

it's proven to be a conversation starter to impress your visitors. It's a cool piece of art even just stands on your desk.

To be admired and to be talked more from your friends if you have this magic stuff.
This stirling engine designed reasonable and compact. You can bring it home, school office with convenient in your bag.

Features:
1. Model: M14-03-S
2.Speed:1300 to 1500 RPM
3.Weight: 480g / 17.74oz
3. Size: 205X100X90mm / 8.07 in* 3.93 in* 3.54in
4. Technical parameters: flywheel diameter 54mm; driving wheel 24mm; power cylinder inner diameter 14mm; piston path 16.0mm; cylinder inner diameter 19.0mm

Packing List:
*Engine x1
*Lamp x1
*Wick x2

Spare parts offer available. Please contact us to get offer if need any parts replacement.

IMPORTANT:
1.Please adopt 95% high-grade alcohol to be the fuel to make sure the air tank can get more temperature and drive the stirling engine.
2. please pay attention the temperature of candle's light is not powerful enough for this toy,

Stirling engine is traditionally classified as an external combustion engine. Please refer to wikipedia for more information about What is the stirling engine and How it works?

100% SATISFACTION GUARANTEE
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Features

• ATTRACTIVE COLOURFUL LED WITH MOTOR INSTALLED-----The stirling engine equipped with a colorful LED. Because of the heat from high-grade alcohol, the engine will run madly and create the electricity. The power will go through the wire and drive the led light to emit different colors. It's really interesting and imaginative toy.
• EXTREMLY WELL-MADE----The board is made of Russian pine, using fine grinding manufacturing; Stent using mold steel manufacturing, solid and firm; Flywheel, ventilation pistons, aluminum fine cars, fine milling, texture and beauty double combination; Rod made of stainless steel manufacturing; Dynamic link sets of aluminum alloy cylinder, power cylinder and the power piston is SUJ2 material fine grinding surface of special treatment, high hardness. Do not wear high-speed ultra-long-running.
• EASY OPERATION & LONG LASTING----Fill the alcohol burner with your 95% alcohol (we recommend this fuel) and light it. Let the light burn the round ended cylinder for about 20 seconds, then give the wheel a gently push, it will run like a charm. It can run for 8+ hours continuous without any broken which test by one customer.
• STRONG PACKING----Glass tube is packaged separately with bubble bag to avoid damage during shipment. Easy to take off the package and put it back to the place. Wood base is bare and left unpainted. You can fly your imagination and stain it the color you prefer yourself or with kids, friends.
• PRIORITY GIFT OPTION FOR MANY APPLICATIONS----It is an amazing and fantastic product at this price. Its elegant gift package makes it spruce up and presentable. It has a wide range of application as, great gift for Kids' science project, Physical/mechanical learning, teacher’s Demo props on the class, birthday gift for friends, families, parents, kids, etc. Many of our customers come from school, colleague, etc.

Top Reviews

Excellent little engine for the price. Mine worked perfectly. Vibrates. Great for technology demo.
by N. J. Simicich (5 out of 5 stars)
June 12, 2017

Amazing little gadget.

The engine was well packed in bubble wrap and tape. Too much tape, but OK. There were instructions, written by someone whose third language was Klingon and maybe English was their fifth language. But they could be comprehended, and they really were not needed. The engine was completely assembled, except that (1) the glass hot cylinder was not installed. There is a spare. (2) the wick was not installed in the Alcohol lamp.

I installed the wick (it helped to wet it with alcohol and rub it to a point) then put 70% isopropal alcohol into the bottle, lit it, and in under a minute. it was working.

It ran for about 10 minutes and then ran out of alcohol. There was plenty of power to run the generator, and to shake the thing.

That was the only issue with the thing, it vibrated enough to walk around and around. I had to hold it to keep it from walking on to the floor. I needed to check something, so I had to carry it. Walking around cooled the hot cylinder too much. Soon as I put it down it started running again.

For the price I am completely satisfied with this item. I am amazed that the air can actually heat up and cool that quickly, but obviously it can. I am somewhat surprised at the power of the air heating and cooling. This is physics that you can touch. I hope my grandkids get it.

The box contained:
1. The Engine assembled and mounted on the piece of wood. It was attached to the generator.
2. Spare O-rings. There were two spares, and the seal is 3 o-rings.
3. two glass hot cylinders, one is a spare.
4. The tiny alcohol lamp. Separate wick, Separate cork.
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Awesome little engine! Runs like a scalded dog!
by Harbourbug (5 out of 5 stars)
March 10, 2017

What a great little engine! I completed my assembly by installing the glass cylinder and the alcohol bottle and it fired right up! Make sure everything moves freely. Position flame under cylinder with cylinder full open, heat for 20-30 seconds and spin the flywheel. She's off and running like a champ! My LEDs are bright, change colors and change frequencies. This is a really nice demonstration device!

If you feel the need to lubricate, use ONLY a dry lube as you would use on locks, NO oils!

The base itself is a bit cheap, but completely functional. I have a small piece of teak I'm going to sand and varnish to remount this nice little engine. The machining and finish is nice enough to encourage me to dress it up a little more, but it won't work any better
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Works well, base is cheesy.
by CDL (4 out of 5 stars)
April 14, 2014

I have wanted one of these for a long time. I picked this one because of the price. There were not a lot of reviews, but it was similar to other models with plenty of good reviews, so i took a chance.

Mine ran ok with normal 70% isopropyl alcohol. I went to walmart and bought the 91% and it ran a lot better. Then i screwed up, i put a few very small drops of oil on the moving parts. It would no longer run. I took it all apart and removed the oil and now its running like a champ again. I read somewhere to use pencil "lead" which is actually graphite. I imagine any dry lube would work. I have some molybdenum disulfide lube somewhere that I might try.

The machining is good quality, the finish is good too. It came with a spare glass tube (looks like the bottom of a heat resistant test tube, like pyrex or kimex) but I cant be sure. It also came with an extra set of o'rings for the tube.

About the only thing I didn't like was the base. It is a piece of wood, with a space for the burner and rubber feet on the bottom. No finish and the edges could use some sanding. The engine bolts to it and could be removed easily if you wanted to finish or replace the base.

Dont leave the thing sitting there running. It vibrates quite a bit and it will walk right off the counter or table. Thats not a complaint or a comment about quality, just something I noticed. The little generator thing it cool, but unless its running at full speed, you will only see a dim red light. When it gets up to speed, you will see green, blue, and red. You can also remove the belt if you just want to watch it run fast.

In all, I have had a lot of fun playing with it and experimenting. Try reversing the position of the cranks with an allen wrench. You can make it run backwards. Also, try icing the cold cylinder. Worth the money for sure. Arrived double boxed from China in perfect condition. I got it about 5 days after I ordered.
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Quality machining, great price, fun toy
by James C. Westland (5 out of 5 stars)
May 3, 2014

This model Stirling engine is a low cost counterpart to the Boehm Stirling-Technik - HB7-AL2 which retails for ~$250. The Boehm is definitely a notch up in intricacy and quality, but for demonstration purposes, little is lost in the cost-cutting shortcuts that allow this model to be sold for $66. The wood base is cheap, naked soft pine, so I put a coat of polyurethane on it to toughen it up, but otherwise everything is stock that you see in the videos. The alcohol lamp should be run on ethyl alcohol (95% denatured from Home Depot's paint department). It requires a bit of warming up, and the hot side cylinder should be positioned for maximum cylinder volume when first heating. After a minute of heating, spin the flywheel, and the engine will run until the alcohol runs out (about 3 minutes). I like the clear cylinder head (half of a test tube) since you can see the cylinder moving. The LED does light up red, but it is pretty dim and transient; I think the small motor/generator puts a significant load on the Stirling engine since the scale is so small.

I have found that these run faster and faster as they break in, and the red LED becomes more prominent. I noticed one reviewer tried to lubricate the engine, with poor results. Just run it for awhile and the parts loosen up.

All told, for ~$66 it's a great toy. I also bought Sunnytech® Low Temperature Stirling Engine Motor Steam Heat Education Model Toy Kits Lt001 which works extremely well as well. I'm intrigued enough to think about the Sunnytech® Hot Air Stirling Engine Motor Generator Education Toy Kits Electricity M16-v4-d which uses 4 of these ganged together to run a small generator. It seems with the more expensive Sunnytech engines, they give you a better painted wood base.

The product shipped from Shanghai which was a bit of a concern. But it was packed very well, and even though the delivery time was stated as 5-20 days, it actually arrived in 6 days.
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Great quality, ready to run right out of box.
by wreathandcrest (5 out of 5 stars)
February 3, 2019

Great little discussion piece. Ready to run right out of the box. Runs very fast; just give the glass a few seconds to heat over the flame and spin the flywheel-off it goes. Runs about half an hour on one bottle of alcohol. The castings and machining are high quality for the price.

A few folks commented on short wick life-but treat it like an oil lamp wick: get about 1/4" showing then use VERY sharp scissors to cut the burn end crisp and flat. You only need about 1/8" sticking up. The wick will last much longer. Could use a counterbalance to stop vibrations but not a big deal. Very happy with it; my young boys enjoy watching it run.
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nice product
by joe easley (5 out of 5 stars)
March 16, 2019

it arrived in good shape and works fine but the instuctions are lacking, it took me a minute to figure out the belt had to be placed on the outside of the generator, i was looking for a pulley that it needed to go around on the one thing you need to be extremely careful with is the glass jar the wick goes in as it is really fragile and i can seem to find a replacement bottle for it on amazon im in the process of emailing sunnytech to try and get a replacement glass bottle
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Very High Quality
by BEN (5 out of 5 stars)
September 9, 2017

After sorting through all the models of these stirling engines that are made by Sunnytech, I came across this one and decided that it was the one for me. I think this model is the best for the money, because it is far more aesthetically pleasing than some of the other ones in this same price range. After I disassembled the engine, I was even more thoroughly impressed with the build quality and tight machining throughout. It is a great educational tool that I would recommend to anyone looking to understand the principles of an external combustion engine, as well as anyone looking to have a cool desk toy (me).
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Great item!
by Amazon Customer (5 out of 5 stars)
December 14, 2017

Very nicely crafted.

This was a gift for a friend, I also gave him the 2 quart fuel.

We put the tube on and fueled it and got it running first try. And what a good time we had watching it go.

Later at the house warming party, my friend had it running almost all night until the fuel was gone.

This is fun and educational and entertaining.

Both of us really admired the craftsmanship with which this was made.

Very nice, highly recommend.
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Desk toy extraordinaire!!
by Jarrett & Briana (5 out of 5 stars)
June 22, 2017

Desk toy extraordinaire!! I bought this, painted up the base, and proudly display it on my desk at work. Everyone asks what it is and I light the little wick and set it to whizzing about. Works perfectly every time. Super cool gadget for the money.
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Cool gift!
by Aggiegirl5 (5 out of 5 stars)
June 8, 2019

Got this as a gift and he loved it! Thought it was really cool and loves watching it run.

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