The simulator demonstrates how a single triangular rotor, spinning and orbiting inside an epitrochoid housing under a fixed 3-to-1 gear ratio, sweeps its three chambers through continuously offset intake, compression, combustion, and exhaust phases, and how this geometry alone reproduces the four-stroke cycle without pistons, valves, or a crankshaft.
Use the rotation control to spin the rotor and watch its three chambers change color as they pass through intake, compression, combustion, and exhaust. Slow the speed down to follow a single apex seal tracing the epitrochoid housing wall, then speed it up to see how the three chambers overlap to deliver continuous power to the output shaft.
Rotor speed slider, start and pause toggle, chamber phase color legend, and a view switch between full engine cross-section and single-apex seal tracking mode.
Mazda's rotary-powered 787B remains the only rotary-engined car ever to win the 24 Hours of Le Mans outright, in 1993, a feat that led motorsport's governing body to effectively ban the configuration from top-level endurance racing shortly afterward.
The simulator demonstrates how a single triangular rotor, spinning and orbiting inside an epitrochoid housing under a fixed 3-to-1 gear ratio, sweeps its three chambers through continuously offset intake, compression, combustion, and exhaust phases, and how this geometry alone reproduces the four-stroke cycle without pistons, valves, or a crankshaft.
The simulator demonstrates how a single triangular rotor, spinning and orbiting inside an epitrochoid housing under a fixed 3-to-1 gear ratio, sweeps its three chambers through continuously offset intake, compression, combustion, and exhaust phases, and how this geometry alone reproduces the four-stroke cycle without pistons, valves, or a crankshaft.
Use the rotation control to spin the rotor and watch its three chambers change color as they pass through intake, compression, combustion, and exhaust. Slow the speed down to follow a single apex seal tracing the epitrochoid housing wall, then speed it up to see how the three chambers overlap to deliver continuous power to the output shaft.
Mazda's rotary-powered 787B remains the only rotary-engined car ever to win the 24 Hours of Le Mans outright, in 1993, a feat that led motorsport's governing body to effectively ban the configuration from top-level endurance racing shortly afterward.