Multi-cylinder hot gas engine

Multi-cylinder hot-gas engine with automatic air and gas supply

Multi-cylinder stirling engine

Multi-cylinder, double-acting hot gas engine

Multi-cylinder, double-acting hot gas engine

Multi-directional thermal actuator

Multifuel internal combustion stirling engine

Multijunction thermoelectric actuator employing alternating...

Multiple degree of freedom micro electro-mechanical system...

Multiple power wheel engine

Multiple regenerators

Multiple volume compressor for hot gas engine

Multiple-cylinder, free-piston, alpha configured stirling...

Multistage stirling engine

Nitinol engine for low grade heat

Noncombustion engine

Oil backed Stirling engine displacer diaphragm

On-board hydrogen gas production system for stirling engines

Operation of an engine

Oscillating piston apparatus