Compression ignition controlled free piston-turbine engine
Controlled pulse turbine engine
Double free-piston external combustion engine
Energy conversion apparatus
Expandable piston rotary machine
External combustion engine with air-supported free piston
External combustion rotary engine
External combustion slidable vane motor with air cushions
Fluid driven power plant
Fluid power engine
Flywheel combustion engine
Flywheel combustion engine
Free piston external combustion engine
Free piston external combustion engines
Free piston internal combustion engine
Free piston power unit with relieved face bounce cylinders
Free-piston internal combustion engine
Free-piston motor with hydraulic or pneumatic energy transmissio
Gas turbine power production unit including a free piston gas ge
Gas turbine with external free-piston combustor