Patent ID: 8490414
Filing Date: 2013-07-23
Classification: F25B

Abstract:
1. A thermal-cycle cryocooler comprising: a compressor comprising at least a first flexure; a displacer; a regenerator; and a sealed housing enclosing the compressor and the displacer; wherein the compressor and the displacer both act on a single combined working volume within the sealed housing; wherein one of the compressor and the displacer includes a first movable part that moves within a second movable part of the other of the compressor and the displacer, wherein the combined working fluid is excluded from an annular space between the moving parts; wherein the first movable part includes a piston; wherein the second movable part includes a cylinder; wherein at least a piston head of the piston moves within the cylinder; wherein the first flexure is fixed to a stationary structure within the sealed housing; and wherein the regenerator is attached to the cylinder and moves with the cylinder.