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Description of Exquisite M20-T Mechanical Mini Alpha-Type Dual Cylinder Dual Piston Stirling Engine Model for Adult's Kids Birthday Christmas Xmas Festival Holiday Gifts Imagination Development, Classroom Demo or Desktop Display Engineer Lovers DIY Engine Toys Collection FEATURESColor: Like Picture ShowsPacking Weight: 5.51 lbsMaterial: SUJ Alloy Steel, 304 Stainless Steel, 6061 Aluminum Alloy, Brass and Bamboo.Inner Diameter of Heating Tube: 20mmDiameter of Piston: 20mmPiston Stroke: 20mmFlywheel Diameter: 78mmM20-W-01 and M20-T are two α-type double-cylinder, double-piston Stirling engines. The α-type Stirling engine does not have a separate gas distribution cylinder; instead, it features a set of cylinders that are structurally identical to the cooling side cylinder, both participating in heat exchange and work generation. Since there are two independent and identically structured cylinders, one cylinder is responsible for generating thermal energy while the other is responsible for cooling. Simultaneously, both sets of cylinders generate power. Due to their complete independence, the two sets of cylinders exhibit a significant temperature difference. When the temperature on the heating side reaches as high as 600 degrees, the temperature in the cooling side cylinder can still maintain around 50 degrees after 20 minutes of continuous operation. This results in a temperature difference exceeding 500 degrees, which serves as a sustained and sufficient source of power output and is a key factor in the performance of the Stirling engine.The connecting rods of the two sets of cylinders are not directly linked but are instead connected through two gear systems, designed with a gear ratio of 2:1. The crankshaft operates at a speed of 1000 RPM, while the flywheel, with a diameter of 78 mm and weighing 155 grams, rotates at 2000 RPM. The considerable inertia of the flywheel enhances the stability of machine operation. This design is similar to that used in single-cylinder diesel engines, which utilize such mechanisms to mitigate intense vibrations and achieve smooth operation.To maximize the lifespan of the cylinders and pistons, we have chosen GCR15 bearing steel as the raw material for the cylinder liners and piston sleeves. After being processed with a CNC lathe, these components undergo heat treatment to increase hardness to 58-62 HRC, followed by grinding treatment to achieve a precision of approximately ±0.005 mm. The pistons, while performing reciprocating motion within the cylinders, must also effectively seal the gas within the cylinders, which is crucialfor the precision of the Stirling engine.The design features a large flywheel, double cylinders, double pistons, dual gear systems, brass connecting rods, a crankshaft, and two 10 mm aluminum alloy brackets. Each of the two sets of cylinders is fitted with a cylinder liner that has a wall thickness of 2.5 mm.To ensure the machine operates as smoothly and quietly as possible, the entire M20-W-01 model utilizes 14 precision bearings, while the M20-T model employs as many as 30 bearings.The M20-T features a vertical cylinder design, benefiting from the large surface area of the vertical cylinder that enhances heat absorption. In this model, the cooling cylinder volume is designed to be larger than that of the heating cylinder, promoting rapid cooling of the air at high temperatures, thereby creating a larger temperature differential.One of the main advantages of vertical cylinders is that they minimize the vertical pressure exerted by the pistons on the cylinder walls during reciprocating motion. This design is also why most household four-cylinder automotive engines employ a vertical configuration.The M20-T similarly adopts a separated design for the hot and cold cylinders, with stainless steel thermal insulation plates used for segregation. Achieving a larger temperature differential in the Stirling engine is a primary consideration for the designers.Versatile Applications: From educational demonstrations to practical use, the α-type dual cylinder dual piston Stirling engine serves a wide range of purposes. It can be utilized as an excellent educational tool, captivating desktop ornament, or even a small-scale generator, catering to diverse interests and needs.Ages: Only suitable for people over 16 years old, or any operation must be accompanied by an adult. ITEM INCLUDES Vertical Dual Cylinders Stirling Engine Model Kit x1Instruction x1 PRECAUTIONS!!!1. Throughout the heating process, DO NOT TOUCH the cylinder, and other high-temperature parts. The Stirling emitted by the machine is at high temperature and can cause burns!!!2. Do not touch the rotating parts of the machine while it is in operation, especially the rotating gears. Do not attempt to start the gears manually, as this can cause damage!3. Each time you use the machine, please inject lightweight lubricating oil into the brass cylinder and piston in advance for lubrication. 4. Allow the alcohol in the lamp to burn completely until the lamp extinguishes itself before removing it. If you need to remove the alcohol lamp midway, use a wet wipe or damp cloth to protect your hands while slowly removing it. Covering the alcohol lamp with the red cap can also extinguish the flame. 5. Please strictly observe safety when using alcohol. Children must use the alcohol lamp under adult supervision!!! In the event of an accidental leak causing a fire, please follow the alcohol product instructions for proper and timely handling!!!6. The model's high speed may cause vibrations, so ensure it doesn't fall to the ground. SAFETY NOTESONLY SUITABLE FOR PEOPLE OVER 16+KIDS SHOULD BE ACCOMPANIED BY ADULT.PLEASE BE CAREFUL WHEN YOU ADD THE FUEL.DON'T TOUCH THE SURFACE OF THE MACHINE DURING OPERATIONS TO AVOID BURNS.IF THE MACHINE DOES NOT WORK PROPERLY, DO NOT FORCEFULLY START IT. IMMEDIATELY INSPECT THE ENGINE OR CONTACT CUSTOMER SERVICE. IMPROPER HANDLING MAY INCREASE THE RISK OF MACHINE DAMAGE. ABOUT INTERNATIONAL SHIPPINGAs the buyer, you should be aware of possible:Delays from customs inspection.Import duties and taxes which buyers must pay.Brokerage fees payable at the point of delivery.Disclaimer: 'maevasa-88's parts are not sponsored or endorsed by, or affiliated with the brand 'Gift'. ADDITIONAL INFORMATION Three months manufacturer defect warranty on the goods. If there is any quality issue caused by non-human reason, please feel free to contact us and we will be glad to help you. Hope you will have a wonderful shopping time with us! Helpful LinksAdd to Cart Contact SellerYou may also likeView more great items
Price: 367.28 USD
Location: Nanjing, Jiangsu
End Time: 2025-01-17T02:53:57.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Safety Notes-3.3: Improper handling may increase the risk of machine damage
Safety Notes-3.1: If the machine doesn't work properly, don't forcefully start it
Year Manufactured: 2024
INSTRUCTION NOTES: PLEASE CAREFULLY READ INSTRUCTION AND OUR DESCRIPTION BEFORE USE!
Diameter of Piston: 20mm
Item Length: 7.48 in
Inner Diameter of Heating Tube: 20mm
Pulley Diameter: 20mm
Unit Type: Unit
NOTE: Please email us if you have any question of the goods or logistic
Item Height: 7.87 in
Features: Designed to fit in show-cases and desk table model, Durable and Reliable Model, Fuel: 95% Purity Alcohol, Start Method: Manual, Suitable for Age of People Over 16+, great gift for Kids' science project, Physical/mechanical learn, Dual Cylinder Dual Piston Design, Crafted from premium materials, Advanced α-Type Configuration
Unit Quantity: 1
Item Width: 5.43 in
Safety Notes-1: Only suitable for people over 16+
Assembly Status: Ready to Go/Pre-built
Material: Brass, Wood, Aluminum Alloy, Stainless Steel
Age Level: 17 Years & Up
Safety Notes-5: For People Under 16 Years Old Must Be Accompanied with An Adult!!
Total Number of Bearings: 30
Safety Notes-2: Don't touch surface of the machine during operation to avoid burn
Brand: Unbranded
Type: Alpha-Type Balance Beam Dual-Cylinder Stirling Engine Model Toys
Flywheel Diameter: 78mm
Country/Region of Manufacture: China
Item Weight: 4.85 lb
Piston Stroke: 20mm
