US2009178418A1PendingUtilityA1

Refrigerator and/or freezer

25
Assignee: WIEST MATTHIASPriority: Dec 21, 2007Filed: Dec 22, 2008Published: Jul 16, 2009
Est. expiryDec 21, 2027(~1.4 yrs left)· nominal 20-yr term from priority
Y02B30/00F25B 2500/01F25B 2500/18F25B 21/00F25B 2321/0022
25
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Claims

Abstract

The present invention relates to a refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance, and a warm heat exchanger for cooling the heat transfer medium, wherein the warm heat exchanger has a cross-sectional area between 14 mm 2 and 54 mm 2 .

Claims

exact text as granted — not AI-modified
1 . A refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance and a warm heat exchanger for cooling the heat transfer medium, wherein the warm heat exchanger has a cross-sectional area between 14 mm 2  and 54 mm 2 . 
   
   
       2 . The refrigerator and/or freezer according to  claim 1 , wherein the warm heat exchanger has a cross-sectional area between 24 mm 2  and 44 mm 2 , preferably between 30 mm 2  and 38 mm 2 , and particularly preferably between 32 mm 2  and 36 mm 2 . 
   
   
       3 . A refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance and a warm heat exchanger for cooling the heat transfer medium, wherein the cold heat exchanger has a cross-sectional area between 30 mm 2  and 70 mm 2 . 
   
   
       4 . The refrigerator and/or freezer according to  claim 3 , wherein the cold heat exchanger has a cross-sectional area between 40 mm 2  and 60 mm 2 , preferably between 46 mm 2  and 54 mm 2 , and particularly preferably between 48 mm 2  and 52 mm 2 . 
   
   
       5 . The refrigerator and/or freezer according to  claim 3 , wherein the appliance is configured in accordance with the warm heat exchanger having a cross-sectional area between 14 mm 2  and 54 mm 2 . 
   
   
       6 . The refrigerator and/or freezer according to  claim 1 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant. 
   
   
       7 . The refrigerator and/or freezer according to  claim 1 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is variable and a mean value values. 
   
   
       8 . The refrigerator and/or freezer according to  claim 1 , wherein the warm heat exchanger and/or the cold heat exchanger is made of one tube or of two or more than two tubes which preferably extend in parallel. 
   
   
       9 . The refrigerator and/or freezer according to  claim 8 , wherein the warm heat exchanger and/or the cold heat exchanger is made of two or more than two tubes extending in parallel and the cross-sectional value is the total cross-sectional area of the two or more than two tubes. 
   
   
       10 . A refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance and a warm heat exchanger for cooling the heat transfer medium, wherein the cross-sectional area of the warm heat exchanger is smaller than the cross-sectional area of the cold heat exchanger. 
   
   
       11 . The refrigerator and/or freezer according to  claim 10 , wherein the appliance is configured in accordance with the warm heat exchanger having a cross-sectional area between 14 mm 2  and 54 mm 2 . 
   
   
       12 . The refrigerator and/or freezer according to  claim 4 , wherein the appliance is configured in accordance with the warm heat exchanger having a cross-sectional area between 14 mm 2  and 54 mm 2 . 
   
   
       13 . The refrigerator and/or freezer according to  claim 12 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant. 
   
   
       14 . The refrigerator and/or freezer according to  claim 2 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant. 
   
   
       15 . The refrigerator and/or freezer according to  claim 3 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant. 
   
   
       16 . The refrigerator and/or freezer according to  claim 4 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant. 
   
   
       17 . The refrigerator and/or freezer according to  claim 5 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant. 
   
   
       18 . The refrigerator and/or freezer according to  claim 17 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is variable and a mean value. 
   
   
       19 . The refrigerator and/or freezer according to  claim 16 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is variable and a mean value. 
   
   
       20 . The refrigerator and/or freezer according to  claim 15 , wherein the cross-sectional area of the warm and/or of the cold heat exchanger is variable and a mean value.

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