Air fuel engine
Air fuel engine
Alternative charging method for engine with pressurized valved c
Combination internal combustion and steam engine
Combination internal combustion and steam engine
Combined internal combustion and hot gas engine
Combined internal combustion and steam engine
Combined internal combustion and steam engine
Combined internal combustion and steam engine
Combustion engine with steam powered piston assist
Energy conserving engine
Energy recovery system for large motor vehicles
Energy storing engine
Fluid engine
Fluid handling elements and combustion engines
High efficiency integrated heat engine (HEIHE)
Internal combustion and steam engine
Internal combustion engine
Internal combustion engine
Internal combustion engine with steam expansion stroke