Flame Eater Engine Vacuum Engine Motor Toy Science Education Model Kit Gift Collection - Enginediy
A vacuum engine (also called flame-licker engine, flame-engine, flame-dancer) derives its force from air pressure against one side of the piston, which has a partial vacuum on the other side of it. At the beginning of an out-stroke, a valve in the head of the cylinder opens and admits a charge of burning gas and air, which is trapped by the closing of the valve and expands. Towards the end of the stroke the charge comes into contact with a water- or air-cooled part of the cylinder and is chilled, causing a sudden drop in pressure sufficient to suck the piston – which is open towards the crank – back on the return stroke. The valve opens again in time for the piston to expel the burnt gases before the next out-stroke begins.
Features: 1, High Craftsmanship: Selected quality materials, made of pure metal, the overall polishing is meticulous, the color is bright, it is not easy to rust and fade, looks very beautiful. 2, Safety Design: The alcohol lamp has a fixed lamp holder for safer and more reliable. 3, Working Theory: burning alcohol lamp provides heat power to make the expansion of gas inside, then the gas molecular internal power increasing and working strongly to the flywheel. 4, Widely Application: Great educational toy for classroom or laboratory experimental teaching aids, cultivate children's interest in physics, more intuitive and easy to understand. Also, great gift for your friends or families; Or can be a super addition for home decor.
Tips: 1, After using it, please let the engine natural cool. Don't touch the alcohol burner, burned tube or the metal to avoid scald. 2, 95% alcohol (self-prepared) should be used in the operation. Water, kerosene, gasoline, lighter oil, and liquor should not be added. 3, The Stirling engine model is suit for people over 14 years old. Operate under adults' supervision.
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