Double acting thermodynamically resonant free-piston...

Double action spring actuator

Double bubble wheel engine

Double-acting four-cylinder Stirling engine

Double-acting hot gas engine assemblage

Double-acting hot gas engine assemblage

Double-acting rotary mechanism for combustion engines and the li

Double-headed and swash plate type stirling engine

Drift stabilizer for reciprocating free-piston devices

Drive apparatus

Drive device

Drive device

Drive mechanism for Stirling engine displacer and other reciproc

Driving apparatus

Driving apparatus for stirling cycle engine

Driving apparatus utilizing thermal expansion and contraction

Driving device and method of manufacturing the same

Driving system for machinery, such as a motor, compressor etc.

Dual cycle hot gas engine comprising two movable parts

Dual shell Stirling engine with gas backup