RESONANT FREE-PISTON STIRLING ENGINE HAVING VIRTUAL ROD DISPLACER AND DISPLACER LINEAR ELECTRODYNAMIC MACHINE CONTROL OF DISPLACER DRIVE/DAMPING

摘要

a new virtual rod assembly (12) alternating with the displacer (11) of a free piston stirling engine.a piston rod (12a) formed at the opposite side of the displacer (10) is subject to periodic pressure wave in gas engine. the bearings (14), the connecting rod and a displacer.the gas springs (15, 16) are not a natural frequency of oscillation.one end (d1) of the displacer is designed to have an effective area which is larger than the area of the gas of the opposite end (d2).what are the areas with opposite ends of the displacer are balance of a differential force when a periodic pressure wave acting on it.this causes a reciprocating motion of the displacer and the virtual assembly of connecting rod.