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ENJOMOR Rhombic Hot Air Stirling Engine Model Toy Gift for Science and Education Machinery Enthusiasts

Original price $134.99 - Original price $134.99
Original price
$134.99
$134.99 - $134.99
Current price $134.99

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SKU 33ED3536301

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ENJOMOR Rhombic Hot Air Stirling Engine Model Toy Gift for Science and Education Machinery Enthusiasts

Introduction:

This engine adopts a gear coaxial diamond structure design that is rarely seen on the market, making it look even more unique.
The 20MM power cylinder and the 20MM 304 stainless steel heating pipe completely combine the two systems in one cylinder. The two sets of brass gears move in the same position with the crankshaft wheel.
In order to maximize the life of the cylinder and piston, bearing steel GCR15 is selected as the raw material of the cylinder liner and piston liner. After CNC lathe processing, it is quenched to increase the hardness to 58-62HRC, and then ground, the accuracy can reach plus or minus 0.005 Around MM, while the piston is reciprocating in the cylinder, it also needs to seal the gas in the cylinder as much as possible. This is a key part that reflects Stirling's precision.
The engine uses an exaggerated flywheel with a diameter of 78MM and a thickness of 20MM. This makes the weight of a single flywheel of this machine up to 155g, which is five times the weight of the M14 series flywheel. The brass gear with a diameter of nearly 40, the diameter of the brass crankshaft of 25MM, and the wall thickness of the cylinder liner of 2.5MM make this seemingly small machine The weight of the M20-TZ-01 fuselage has been pushed to 1.4KG.
The redesigned heat exchange piston and cylinder improve the machine's heat exchange capacity. After 20 minutes of operation, the temperature of the machine cylinder was measured to hover around 100 degrees, while the temperature in the front section of the heating pipe was as high as 600 degrees. This will result in a temperature difference of about 500 degrees, which also makes the power output of this machine more sustained.

Specification:

Brand: ENJOMOR
Material: stainless steel + brass + aluminum alloy
Product weight: 1380g
Product size: 178*128*138mm
Heating replacement cylinder inner diameter: 20mm
Power piston diameter: 20mm
Piston stroke: 15mm
Flywheel diameter: 78mm
Pulley diameter: 20mm
Total number of bearings: 8

Packing list: 

Stirling engine*1,
Alcohol lamp*1,
Instruction manual*1

Questions about Shipment Q1 : Do you ship worldwide?A1 : Yes, we can ship worldwide.
Q2 : Where you ship goods from?A2 : Our warehouse is located in China, the goods will be shipped from China mainland.
 
Q3 : What is the shipping cost?A3 : For giving customer good shopping experience, we offer free international shipment.
 
Q4 : What is the shipping time?A4 : For expected delivery date, please check in this page: Expected Delivery TimeQ5 : How do I track my package?A5 :You can track your order on 17track.net . Or if you need a team members help check up please contact with our service team service@enginediy.com and we will be in touch with a status update.
 
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Q3 : How do I cancel my order?A3 : For the order, if not shipped out yet, please contact with our Service Support Team service@enginediy.com , we will cancel your order and give you full refund.
 
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Q5 : What if my address is wrong?A5 : If the recipient's address was wrong, after the failed delivery, the parcel should be returned back to sender. After we receive the parcel, we will contact you for an updated address and arrange the new shipment.
 
Questions about Return & RefundsQ1 : What items are returnable?A1 : a)- We can accept returns or exchanges within the 30-day period. b)- All returned items must be in the original condition: unused, unwashed, and unworn. No exceptions.
Q2 : How do I return a product?A2:Contact with Enginediy Service Team service@enginediy.com to confirm details to make sure the item is meet the return condition. After the agreement, Service Team will send the detailed return information, please offer return tracking number after return shipment.Q3 : What is you refund policy?A3 : Refunds are processed within 1-5 business days, after you received our confirmation on the cancellation.
 
Q4 :How will you refund me?A4 : The refund are applied to the original payment method.

Customer Reviews

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François MELLE (Perpignan, FR)
Nice Stirling engine

Fast delivery. The engine is very well packaged and protected. Big enough not to look like a kid's toy. The finish is aesthetically pleasing and very carefully done. I replaced the burner wick with a more durable fiberglass one. With a modest flame (96° alcohol), the engine runs perfectly well, it's a pleasure for the eyes. Maybe I just would have preferred a metal burner and not a glass one to match the rest.