qing shuang Stirling Motor Sterling Engine Stirling Motor Hand Heat Stirling ...

Description: qing shuang Stirling Motor Sterling Engine Stirling Motor Hand Heat Stirling Educational Toy Birthday Gift Kids and Technology Enthusiasts (red) Stirling engine: Stirling engine is a type of thermal engine that works by circulating compressed and expanded air or other gases (working fluids) at different temperature levels, thereby converting thermal energy into mechanical work. An engine is like a Steam engine. All the heat from the engine comes in and out through the engine wall. Working principle： Unlike the Steam engine, which uses liquid and gaseous water as working fluid, the Stirling engine has closed a fixed amount of permanent gaseous fluid, such as air or helium. Like all heat engines, the general cycle includes compressing cold gas, heating gas, expanding hot gas, and finally cooling the gas before repeating the cycle. Easy to install：This beautiful low-temperature Stirling engine may be a great gift for your friends, family or yourself. Put the cryogenic Stirling engine model on a cup of hot water, slightly rotate the flywheel, and it can start by itself. Lubrication：Lubricants can be applied with graphite or 2B pencils, and glass pistons are "air film lubricated" without the need to add any lubricant, just keep them clean Attention：It is strictly prohibited to use lubricating oil. The oil will react with factors such as dust in the air to produce oil stains, which cause significant friction and is difficult to clean. On the contrary, the model cannot rotate. ◎ Parameters: ● Speed up to 180-200 rpm ●Starting temperature difference: 20 ℃ ● Color: Lake Blue Flywheel/Red Flywheel ● Material: Aluminum alloy and glass ●Product size: 76 x 76 x 100 mm ●Product weight: 130 grams ◎ Kind reminder: ●Efficient and authentic materials: Aluminum alloy flywheel, aluminum alloy pillar, aluminum alloy heat sink (organic glass heat sink), high boron silicon wear-resistant cylinder, stainless steel connecting rod, double ball bearing. ● Usage: Prepare a water container and fill it with hot water. Be careful not to get too hot. Let the engine stand still for 20 seconds, and then turn the flywheel to start. ● Precautions: 1. Under the age of 14, adults are required to accompany and play. After all, there is hot water, be careful of safety, and ensure that the piston does not contain any liquid. Do not send a water cup, and you need to bring it yourself. The cup cannot fall off, the larger the contact surface, the better! 2. Flame heating cannot be used. Some parts can withstand temperatures of around 100 degrees Celsius, and flame heating will melt and deform; 3. Lubricants can be applied with graphite or 2B pencils, while glass pistons are "air film lubricated" without the need for any lubricant, and can be kept clean. 4. Lubricating oil is strictly prohibited. Oil can react with factors such as dust in the air to produce oil stains, which cause significant friction and are difficult to clean, making the model difficult to rotate. Shipping We offer FREE shipping on all orders! We ship within Three business days of payment, usually sooner. We use a selection of shipping services such as UPS, FedEx, USPS etc. We only ship to the lower 48 states, no APO/FPO addresses or PO Boxes allowed. Local pickups and combined shipping options are not provided at this time. Return You can return a product for up to 30 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. Payment We accept payment by any of the following methods:PayPalPlease pay as soon as possible after winning an auction, as that will allow us to post your item to you sooner! Feedback Customer satisfaction is very important to us. If you have any problem with your order, please contact us and we will do our best to make you satisfied. Contact Us If you have any queries, please contact us via ebay. We usually respond within 24 hours on weekdays. Please visit our eBay store to check out other items for sale! Thank you for shopping at our store.

Price: 31.99 USD

Location: Phoenix, AZ

End Time: 2024-12-06T17:38:18.000Z

Shipping Cost: 4.99 USD