Recent Blogs
Ritter Rotary Engine
How the Ritter Rotary Engine works — a 19th-century rotary steam engine using sliding abutments and a drum piston. Theory, formula, worked example, and restoration...
Knickerbocker Four Piston Rotary Engine
How the Knickerbocker four piston rotary steam engine works — geometry, indicated horsepower formula, worked example, and troubleshooting for heritage restorers.
Forrester Rotary Engine
Forrester rotary engine explained — abutment geometry, sealing tolerances, and worked sizing for heritage steam restorations in mills and pumping stations.
Double Slide Piston Rotary Engine
How the Double Slide Piston Rotary Engine works — geometry, port timing, and a worked example from a heritage workshop restoration. Diagrams, formulas, FAQs.