Low temperature differential Stirling animination gif is a mirror of the home page gif at http://dirtsimple.com

MM-5 or MM-1 coffee cup low temperature differential Stirling available at http://www.stirlingengine.com

Animation of completed kit is a mirror of the gif at http://www.jlnlabs.org

This animination is 55W Free Piston Stirling directly coupled to a linear alternator, developed in association with NASA. The animation is a mirror of the one at http://www.grc.nasa.gov

The Stirling Technology Company, http://www.stirlingtech.com , offers special order, experimental, commercial ready protypes to potential commercial partners.

Mirror of the NASA Glenn Research Center rhombic drive Stirling http://www.grc.nasa.gov

Mirror of the WhisperGen wobble yoke animation from http://www.WhisperGen.com

Mirror of the WhisperGen simple stirling animation from http://www.WhisperGen.com

This is a mirror of the so called double double U Stirling Engine from http://peterfette.gmxhome.de/animation.htm This Stirling uses a liquid to transfer heat to a gas to provide a practical isothermal process promulgated in the idealization of a Stirling engine (and also the highly theoretical Carnot engine). Obviously this designer is focused on the key issue of efficiency. Most other Stirling designs supposely isothermal process is more adiabatic, clobbering the efficiency promulgated in the ideal Stirling engine.

Mirror of an animation of the Global Cooling Free Piston Stirling Cooler from http://www.globalcooling.com/howitworks.htm

Mirror of an animation of the Newcomen engine from http://www.bekkoame.ne.jp/~khirata/english/anime_a.htm

Mirror of an animation of the Newcomen engine from http://www.bekkoame.ne.jp/~khirata/english/anime_c.htm

Mirror of an animation of the Newcomen engine from http://www.geocities.com/Athens/Acropolis/6914/nwcmne.htm

Quote from the site "The salient feature of this engine is that it worked with low steam pressure (one atmosphere), which was dictated by the level of technology at the time. The crossbeam vibrated 12 times/minute and for each stroke, the pump piston sucked 45 litres of water which was then pushed to reach a height of 46 metres. The power of this first engine was about 5.5 HP. The rise of the engine piston was caused by the descent of the heavy pump piston. The steam, from the boiler, was put into the cylinder. Next, cold water was sprayed into the cylinder, thereby condensing the steam. This created a partial vacuum and atmospheric pressure drove the piston down (active stroke). On this stroke, the crossbeam pulled up the pump piston which raised water from the coal mine. The steam was produced by a little boiler at atmospheric pressure. The condensed water went out through an exhaust valve which had a sluice gate. The time spent in cooling and reheating made the engine too slow for use as anything other than a pump. Newcomen was not able to exploit his engine because Savery, and after him, others, held the patent for any engine based on fire.

Mirror of an animation of James Watt's famous Cornish cross beam steam engine from http://lancefuhrer.com/steam_engine.htm The condensor under the power piston was a brillant addition of Mr. Watt to the steam engine invented by Thomas Savery and Thomas Newcomen.

Quote from the site

"The final version of the new Watt engine worked in 1778. This engine worked a crossbeam for pumping. The cylinder was closed (by a cap) and heated by a warm steam jacket. The condenser, positioned underground, was cooled and vacuum operated (by a pump). When the piston reached the top of its stroke the exhaust-valve opened and a partial vacuum was produced below the piston (inside the cylinder communicating to the condenser). Above the piston, at the same time, the entrance of steam helped the atmospheric pressure to drive the piston down. On this stroke the crossbeam raised water in the pump. When the piston reached the bottom of the stroke the inlet valve closed and an equilibrium valve opened to allow steam to pass from above to below the piston. The engine piston (now with the same pressure above and below) was driven up by the crossbeam and the descent of the very, very heavy pump piston and rod."

Mirror of an animation of basic double action steam engine with a d-value steam chest from http://www.alansmodels.com/engines/how_engine_steam.htm

Mirror of an steam engine built from sewing machine parts from http://www.geocities.com/Athens/Acropolis/6914/semmme.htm

For a description of this engine see http://www.geocities.com/Athens/Acropolis/6914/semp.htm

Mirror of steam engine animation from http://homepages.rya-online.net/steamboat/anims.htm

Mirror of steam engine animation from http://http://homepages.rya-online.net/steamboat/animsnn.htm

Mirror of steam engine value train animations from http://www.steamboating.de/valve/valve-maine.html

Mirror of steam engine value lap and lead timing animations from http://homepages.rya-online.net/steamboat/anims01.htm

Mirror of http://www.servomag.com/flash/motor_types/linear_motor.swf