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Regenerator and stirling cryocooler

A technology of cold accumulator and cold accumulator material, which is applied in refrigerators, gas cycle refrigerators, refrigeration and liquefaction, etc., can solve the problems of ineffective heat exchange of cold accumulator materials and decrease in efficiency of cold accumulators, etc.

Inactive Publication Date: 2016-08-10
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the working gas circulates in the gap, the heat exchange with the cold storage material cannot be effectively performed
Therefore, the efficiency of the cold storage will decrease

Method used

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  • Regenerator and stirling cryocooler
  • Regenerator and stirling cryocooler
  • Regenerator and stirling cryocooler

Examples

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Embodiment Construction

[0020] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, in the description, the same reference numerals are assigned to the same elements, and overlapping descriptions are appropriately omitted. In addition, the structures described below are examples, and are not intended to limit the scope of the present invention.

[0021] figure 1 It is a figure which schematically shows the Stirling refrigerator 10 which concerns on 1st Embodiment of this invention. The Stirling refrigerator 10 includes a compressor 11 , a connecting pipe 12 , and an expander 13 .

[0022] The compressor 11 includes a compressor housing 14 . The compressor casing 14 is a pressure container that airtightly holds a high-pressure working gas. The working gas is, for example, helium. Furthermore, the compressor 11 includes a compressor unit housed in a compressor housing 14 . The compressor unit includes a compressor piston and a ...

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Abstract

The invention provides a regenerator and a striling cryocooler, which can shrink a gap between a regenerator element and a container in the regenerator of an ultralow temperature refrigerating machine. A regenerator (38) includes an axially extending regenerator-element container (52), and a regenerator-element laminated structure (58) accommodated in the regenerator-element container (52). The regenerator-element laminated structure (58) comprises a plurality of regenerator-element members (60) axially stacked in layers, and each extending along a plane perpendicular to the axis of regenerator extension. Each of the plurality of regenerator-element members (6) comprises an outer rim portion (60 a) and / or an inner rim portion (60 b) extending in a direction not lying in said plane, such as to fill a gap between the regenerator-element container (52) and the regenerator-element laminated structure (58).

Description

[0001] This application claims priority based on Japanese Patent Application No. 2015-015234 filed on January 29, 2015. The entire contents of this Japanese application are incorporated herein by reference. technical field [0002] The invention relates to a cold accumulator and a Stirling refrigerator. Background technique [0003] As a cold storage material for ultra-low temperature refrigerators such as Stirling refrigerators, a laminated multi-piece wire mesh is sometimes used. This cold storage material is packed in a container and installed in a refrigerator. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2004-233004 [0005] Due to manufacturing tolerances, there may be slight gaps between the thermal storage material and the container. The gap may become a passage for working gas. If the working gas flows through the gap, heat exchange with the cold storage material cannot be effectively performed. Therefore, the efficiency of the regenerator decrease...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D3/00F25B9/14
CPCF25B9/14F25D3/00F25B2309/003F28D17/02F02G1/057
Inventor 中野恭介平塚善胜汤本健太
Owner SUMITOMO HEAVY IND LTD
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