Solar Engines

Introduction

These engines convert heat energy to the mechanical energy needed to drive pumps, generators, and refrigeration systems.

Fluidyne Engines
	Fluidynes are Stirling cycle engines with a fluid piston acted upon by a heat-induced pressure oscillation resulting from cyclic heating and cooling of a fixed amount of air inside the engine. Status: Prototypes working, additional (remote) development underway.
Hydrodyne Engines
	Hydrodynes are Stirling cycle engines with a fluid piston acted upon by a heat-induced pressure oscillation resulting from changes in vapor pressure of supercritical water inside the engine. Status: Research underway, development plan started.
Hydradyne Engines
	Hydradynes are similar to hydrodynes with dual cold heads that operate with a 180° phase separation, and are planned for high-output megnetohydrodynamic alternators for production of electrical power. Status: Research underway, development plan started.