US2014020407A1PendingUtilityA1

Regenerative refrigerator

59
Assignee: SUMITOMO HEAVY INDUSTRIESPriority: Jul 20, 2012Filed: Apr 26, 2013Published: Jan 23, 2014
Est. expiryJul 20, 2032(~6 yrs left)· nominal 20-yr term from priority
Inventors:Mingyao Xu
F25B 2309/003F25B 9/14
59
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Claims

Abstract

A disclosed regenerative refrigerator including a regenerator filled with a regenerative material for accumulating cooling of a refrigerant gas, wherein the regenerator is divided into a central region and a peripheral region on a cross-sectional face of the regenerator, and a specific heat of the central region is larger than a specific heat of the peripheral region.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A regenerative refrigerator comprising:
 a regenerator filled with a regenerative material for accumulating cooling of a refrigerant gas,   wherein the regenerator is divided into a central region and a peripheral region on a cross-sectional face of the regenerator, and   a specific heat of the central region is larger than a specific heat of the peripheral region.   
     
     
         2 . The regenerative refrigerator according to  claim 1 ,
 wherein a flow path resistance for the refrigerant gas in the central region is less than a flow path resistance for the refrigerant gas in the peripheral region.   
     
     
         3 . The regenerative refrigerator according to  claim 1 ,
 wherein a magnetic regenerative material made of a magnetic material is provided in the central region, and   a nonmagnetic regenerative material made of a nonmagnetic material is provided in the peripheral region.   
     
     
         4 . The regenerative refrigerator according to  claim 1 ,
 wherein the central region and the peripheral region are divided by a separating member.   
     
     
         5 . The regenerative refrigerator according to  claim 1 ,
 wherein a magnetic regenerative material made of a magnetic material is provided in both of the central region and the peripheral region, and   a filler is provided in the peripheral region.   
     
     
         6 . The regenerative refrigerator according to  claim 5 ,
 wherein a filling rate of the magnetic regenerative material is larger in the central region than in the peripheral region.   
     
     
         7 . The regenerative refrigerator according to  claim 5 ,
 wherein the filler is a metallic mesh.   
     
     
         8 . The regenerative refrigerator according to  claim 5 ,
 wherein the filler has a plurality of through holes.

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