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Hi all interested, After about 1 year with some health problems I have now again designed and manufactured a model engine. It is a rather crazy but unique model of a 2-stroke engine that has no flywheel but a pendulum. See the YouTube video: https://www.youtube.com/watch?v=7vb-necawhY and...

Hi all interested, I made a new version of my "Pressure Controlled" 2-stroke engine with glass cylinder, graphite piston, "Spice Jar" carburetor and miniature spark system. See my web site: www.ridders.nu; concerning page...

Hi all, I designed and made a little device with a small touch of steam technology as a gift for one of my grandchildren. It is based on the so called "put-put" principle mostly used in toy boats. But here it creates a continuous and pulsating water fountain in a vertical glass tube as long as a...

Hi all, The last few months I again and thoroughly have investigated the mini "Blokker" spark system for IC model engines with the help of an electronics expert and on the basis of extensive experimentations with the intent to optimize the system and determine its possibities and limits. I now...

Hi all intereseted, I designed and made a small and easy-to-make 2-stroke model engine that I named "Puppy". See the YouTube video: Puppy 2 stroke model engine Puppy 2 stroke model engine Simple, small and easy-to-make 2-stroke model engine. Design Jan Ridders; The Netherlands See for...

Hi all interested, Some few years ago I made a simple and cheap spark igniter for small IC model engines using the electronic circuit out of a cheap ("Blokker") kitchen gas lighter. I now made a new version of it eliminating a thyristor that appeared to be somewhat vulnerable in certain...

Hi all interested, In a 4-stroke engine the crankshaft makes two revolutions per process cycle. The drive mechanism for the valves and the spark ignition rotates 2x slower than this crankshaft. This 1 to 2 distribution normally is made with a gear system, whether or not with a toothed belt or...

Hi all interested, Already in 2004 I made a 2-cylinder flame-eater with extenal valves and overhead rockers. This engine can run well but only if the drive system for the two slide valves are made well and properly adjusted. But the design of this drive system was fairly complex and it was also...

Hi all, Already in 2004 I designed a miniature flame-eater. But I was never satisfied wit it because the construction was rather complex causing difficult adjustments resulting in rather unreliable behaviour. Reason why I took it out of the closed after 9 years for redesigning it significantly...

Hi all interested, I improved the design for the "Magnet Stirling" again and made a new video also with trouble-shoot demos at the end of it in case of problems; see: http://www.youtube.com/watch?v=J8O-jxwyIFY&feature=c4-overview&list=UUOWqwLEIfORZB09qQirdkag See also the concerning page on my...

Hi all interested, During the last 12 years I have designed and made several Stirling and Flame-Eater models. I have actualalized the the page "Experiences enTips" on my web site for these type of small engines and now I also translated that to my (school) English, see...

Hi all, I have made an improved MK2 version of my "Magnet Stirling: 3x faster and thermal isolation for the Neodymium magnet in the displacer. See the video: http://www.youtube.com/watch?v=oWyrdmEBsrQ&feature=c4-overview&list=UUOWqwLEIfORZB09qQirdkag And the concerning page on my web site...

Hi all, I made a design for a 4-stroke model IC engine without gears or timing belt for the 2 to 1 distribution. Each 4-stroke engine has a transmission ratio (distribution) of 2 to 1 between the crankshaft and the camshaft for the valve system and spark control because the crankshaft makes...

Hi all, I designed and made a (cute) little Stirling model with free running graphite displacer driven by a simple magnet system; see video: http://www.youtube.com/watch?v=nn9hR6c1Bb0&feature=c4-overview&list=UUOWqwLEIfORZB09qQirdkag and the concerning page on my web site...

Hi all, I designed and made a (cute) little Stirling model with free running graphite displacer driven by a simple magnet system; see video: http://www.youtube.com/watch?v=nn9hR6c1Bb0&feature=c4-overview&list=UUOWqwLEIfORZB09qQirdkag and the concerning page on my web site...

Hi all interested, I have made a new Stirling design with a free running displacer, a pendulum instead of a fly wheel and a driving system with 3 small Neodymium magnets; see the prelimanary video with animation...

Hi all, I have made ​​a model IC engine in which the 2-stroke process takes place successively on both sides of the same graphite piston in a glass cylinder, see the video: http://www.youtube.com/watch?v=gLwHEUJ752s&list=UUOWqwLEIfORZB09qQirdkag&index=1 and the concerning page on my...

Hi all interested, I made a design for a kind of free piston 2-stroke model engine; see: http://heetgasmodelbouw.ridders.nu/Webpaginas/pagina_vrije_zuiger/vrije_zuiger_frameset.htm Before I start building this weird thing any comment is welcome. April 13: I just made a video using only the CAD...

Hi all interested, I just finished the revised version of my 2-cylinder Stirling with an unique drive system for the displacers and oscillating work cylinders. See the (new) video: http://www.youtube.com/watch?v=WDrJIccKV1k&list=UUOWqwLEIfORZB09qQirdkag&index=1 and the concerning page on my web...

Hi all interested, Some 6 years ago I designed a 2-cylinder high temperature Stirling with a very unique drive mechanism if I may say so. The displacer rods and those of the working pistons are all connected to the same simple and single crankshaft. The working cylinders are oscillating on tubes...