The Boxy engine is a 1kW Stirling cycle engine designed to produce shaft work at a constant speed. Possible applications of the engine include mobile sawmills, electric generators, or farm equipment. The engine is ideal for applications in remote areas which run at a continuous power level for long periods of time.
- 02 Feb 2014 -- Initial sketch of engine architecture (Media:Engine_sketch_20140202.png)
- 22 Feb 2014 -- Sketch of heat exchanger components, notes (Media:Engine_sketch_20140222.png)
- 01 Mar 2014 -- Updated sketch of engine, notes (Media:Engine_sketch_20140301.png)
- 11 May 2014 -- Sketch of double yoke mechanism, balanced design (Media:Engine_sketch_20140511.png)
- 20 July 2014 -- Animation of yoke mechanism (Media:Yoke.gif)
The Ross yoke mechanism provides motion close to the ideal Stirling cycle while minimizing side-load on pistons, thereby reducing piston wear. A parametrized model of the mechanism provides an estimation of the hot-side and cold-side piston displacements.
A parameterized model of a Ross yoke is available at the following link: