Spherical engine
Spherical internal combustion engine
Split cycle engine
Split cycle heat engines
Split-chamber rotary engine
Split-multi-unit rotary combustion engine
Stage combustion rotary engine
Stratified charge fuel injection system for rotary engine
Stratified charge injection for gas-fueled rotary engines
Supercharged radial vane rotary device
Supercharged rotary piston engine
Supercharged two-cycle engines employing novel single...
Supercharged two-cycle engines employing novel single...
Tangential combustion turbine
Thermodynamic liquid ring machine
Thermodynamic rotary engine
Three chamber continuous combustion engine
Timing mechanism for rotary engines
Toroid sweep engine
Toroidal engine method and apparatus