This inventor made a radial engine prototype with 4 cylinders, opposing two by two with a shuttle-type connecting-rod system and its connection to the crankshaft known as "Double Scotch Yoke".
-We see it more clearly in Hustler Von Sauer's drawing. The engine is mechanically supercharged and has fuel injection. We also can see the mechanism of the two camshafts and the valves.
-This engine was put in consideration by an expert from the Opel Department (GM) in West Germany, in its day, as "Do not rule out that it could succeed".
Engines of COLLINS
Model: 4 cyl. radial, “Scotch Yoke”
The author of this edition of Aeroengines AtoZ, through Aeroteca, collaborated on Version 2 of this video, which is presented here.
To understand the operation of the connecting rods, the 1929 Continental R 670 single-cylinder engine was chosen.
A demonstration of Version 3, improved at the author's suggestion, is also available on YouTube at a later date. This version shows bronze valve guides, improved valve spring movement, and the split crankshaft counterweights and front bearing balls also move.
The design is from Juan Soler, Sant Cugat, Barcelona
Below we show a flash of version 3
Counting also with the coloboration of JMC of Enginys Mecanics in Mataro, Barcelona