A LINEAR FREE PISTON STIRLING MACHINE

摘要

A linear-free piston Stirling machine comprising a displacer (3) and a power piston (4). A rod (9) is attached at one end to the displacer, extends through the power piston and is mounted to the casing at its opposite end via a spring (11). A resilient stopper (20) at the opposite end is arranged to contact the engine casing (25) if the displacement of the displacer exceeds a predetermined limit.