Stirling Cycle Device

Abstract

A Stirling cycle device includes a housing with an inner wall, and a regenerator attached to the inner wall of the housing, wherein the regenerator, made of wool or chemical fiber, is composed of two, three, or four sub-regenerators and the height of the regenerator is independent on number of sub-regenerators. As the regenerator is made of wool or chemical fiber, which may ensure a sufficient permeability and heat storage performance; as the regenerator is composed of a plurality of sub-regenerators, clearances may be formed between each two sub-regenerators, and as the clearances have a density less than the surrounding sub-regenerators, these clearances may be used for energy storage, heat insulation and air circulation. Consequently, the refrigerating performance of the cycle device is improved as the efficiency of pre-cooling and pre-heating of the working gas in the regenerator is improved.

1 . A Stirling cycle device, comprising:
 a housing with an inner wall;   a regenerator attached to the inner wall of the housing, the regenerator having a thickness, a top, and a bottom,   wherein the regenerator, made of wool or chemical fiber, is composed of two, three, or four sub-regenerators and the height of the regenerator is independent on number of sub-regenerators.   
     
     
         2 . The Stirling cycle device of  claim 1 , wherein the regenerator has a height between 34.5 mm and 36 mm, a wall thickness between 4.8 mm and 5 mm, and an outer diameter between 36.6 mm and 36.8 mm. 
     
     
         3 . The Stirling cycle device of  claim 1 , wherein a first cooling element is disposed on the top and a second cooling element is disposed on the bottom of the regenerator, two cooling elements are attached to the housing, each cooling element is formed with a heat dissipation element folded in a continuous wave fashion, and the heat dissipation element has a start and an end, the start and the end of the heat dissipation element attached to each other forming a cylinder, the cylinder has a transverse section with an inner side and an outer side, multiple arch units are formed on the inner side and the outer side of the transverse section, each two adjacent arch units are attached closely;
 multiple pores are formed in the heat dissipation element, the pores are distributed in an upper row and a lower row, and the pores in the upper row and the pores in the lower row are interlaced.   
     
     
         4 . The Stirling cycle device of  claim 3 , wherein each of the first cooling element and the second cooling element is attached to the housing through a positioned ring. 
     
     
         5 . The Stirling cycle device of  claim 3 , wherein each heat dissipation element is made of copper or aluminum with high heat conductivity. 
     
     
         6 . The Stirling cycle device of  claim 3 , wherein the transverse section of the cylinder of each heat dissipation element has a perimeter between 98 mm and 98.5 mm, the annular thickness of the transverse section is between 4.6 mm and 4.7 mm, and the height of the cylinder is between 6.8 mm and 7 mm. 
     
     
         7 . The Stirling cycle device of  claim 3 , wherein each of the first cooling element and the second cooling element has multiple pores with a porosity between 10% and 90%.