Recent Blogs
Union Gas Engine: Historical Arrangement and Ideal Power Comparison
Explore a generic cylinder mechanism alongside Union engine references. Compare indicated power with a fixed 85 percent mechanical-efficiency assumption; no historical engine rating is predicted.
Smith Rotary Engine: Four-Arm Mechanism, Animation and Indicated Power
See how four slotted arms and an eccentric head disc move in Smith’s rotary engine, with a separate indicated-work, power and torque calculator.
Root's Square Piston Engine Mechanism: How It Works, Parts, Uses & Indicated Power Explained
Root's Square Piston Engine explained — how the unique square-piston steam engine works, real 1890s applications, design math, and a worked sizing example.
Twin-screw Vertical Engines: Ideal Indicated-power Calculator
Explore two schematic vertical cylinder units and calculate ideal indicated power from mean effective pressure, bore, stroke and speed. Shaft and propeller output are not...
Brotherhood Three-cylinder Engine: Radial Arrangement
Explore Hiscox’s Brotherhood-type radial steam-engine arrangement and compare displayed angular sectors. The calculator does not predict valve events or power.
Rotating Cylinder Engine Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained
How a rotating cylinder engine works, with the geometry, a worked steam-launch example at three operating points, and design tradeoffs vs oscillating cylinders.
Rotary Engine (form 4) Mechanism: How It Works, Parts, Diagram, Animation and Indicated Power
Rotary Engine form 4 explained — eccentric piston geometry, steam admission, indicated power formula, and a worked heritage marine example with real numbers.
Root's Double-quadrant Engine Mechanism Explained: Diagram, Parts, Formula & Uses
Root's double-quadrant engine explained: how the curved-arm linkage converts piston travel to crank rotation, with sizing math and a heritage millwork example.