Suction Type Stirling Engine

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Stirling Engine Kit Suction Fire Type High-end Professional Edition Pure Copper Air Cylinder Heat Energy Model Physics Science Experiment Toy

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Flame Flicker Stirling Engine Kit V1-45 Engine Model Educational Collection Gift

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Stirling Engine Kit Alcohol Powered Tractor Shape Suction fire Engine Model For Gifts Collection

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Enjomor Two-cylinder Flame Licker Stirling Engine Brass Vacuum Engine Model

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Alcohol Powered Mini Tractor with Fire Stirling Engine

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Suction Type Stirling Engine is also known as flame eater vacuum stirling engine or flame licker stirling engine.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 outstroke, 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 outstroke begins.

How a Stirling Engine works
Stirling engines convert a temperature difference into motion. There is a hot side and a cold side to the engine. Provided there is a large enough temperature difference the engine will run. Stirling engines work by cyclically heating and cooling the air inside the main chamber. As the air heats up it expands, and as it cools down it contracts. This expansion and contraction drives a small piston which in turn drives the flywheel. The clever thing about Stirling engines is that the mechanism for cycling the heating and cooling of the air is built into the engine in the form of the displacer, which is driven by the flywheel and moves the air from the warm side to the cool side and back again over and over.

History of Stirling engines
The Stirling engine is named after its inventor, Rev. Robert Stirling, who patented his idea for a closed cycle hot air engine in 1816. He also invented the improvement known as an economiser which is known today as a regenerator. From around 1860 to around 1930 Stirling engines were produced in significant numbers. They were typically used for pumping water, as they had the benefit of being simple to use and only needing a fire; unlike a steam engine which needed water to begin with. By the 1930’s Stirling engines had been mostly replaced by piped water, combustion engines and increasingly by mains electric motors. Stirling engine generator was used as a means to recharge radio sets as mains electricity still wasn’t ubiquitous. By 1951, Sadly it was not commercially viable for numerous reasons including the introduction of transistors, better batteries and the spread of mains electricity. However all modern commercial Stirling engines can trace their ancestry back to these engines.