US2013167558A1PendingUtilityA1

Cooling device and method therefore for co2 washing machines

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Assignee: JASSANI AHMED ALPriority: May 28, 2010Filed: May 27, 2011Published: Jul 4, 2013
Est. expiryMay 28, 2030(~3.9 yrs left)· nominal 20-yr term from priority
Inventors:Ahmed Al JassaniHakan L. Karlsson
D06F 43/08D06F 43/083F25D 31/00
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Claims

Abstract

The present invention relates to a dry cleaning apparatus comprising an arrangement for cooling fluid being used as solvent in the apparatus, and a method for cooling the fluid. The cooling unit ( 3 ) is arranged so that it can cool the fluid by using

Claims

exact text as granted — not AI-modified
1 . An apparatus for cleaning articles comprising,
 a compressor unit ( 2 ) for processing fluid,   a regulator ( 7 ) associated with the compressor unit ( 2 ), for increasing pressure of the fluid between the compressor unit ( 2 ) and the regulator ( 7 ),   characterised by a cooling unit ( 3 ) arranged between the compressor unit ( 2 ) and the regulator ( 7 ) for cooling of the fluid.   
     
     
         2 . An apparatus according to  claim 1 , wherein the cooling unit ( 3 ) comprises water as coolant. 
     
     
         3 . An apparatus according to  claim 2  wherein the temperature of the water is above 20° C. 
     
     
         4 . An apparatus according to  claim 1 , wherein the compressor unit ( 2 ) comprises two or more compressor stages. 
     
     
         5 . An apparatus according to  claim 1 , wherein the regulator ( 7 ) comprises a back pressure valve. 
     
     
         6 . An apparatus according to  claim 1 , wherein the regulator ( 7 ) comprises an expansion valve. 
     
     
         7 . An apparatus according to  claim 1 , wherein the regulator ( 7 ) comprises a fixed counter pressure valve. 
     
     
         8 . A method for cooling fluid being used as a solvent in a dry cleaning system, the method comprising the steps of:
 compressing the fluid,   regulating pressure of the fluid,   characterised in that the method further comprising the step of cooling the compressed fluid.   
     
     
         9 . A method according to  claim 8 , wherein the cooling comprises cooling the fluid with water as coolant. 
     
     
         10 . A method according to  claim 8 , wherein the regulating step comprising the step of increasing the pressure. 
     
     
         11 . A method according to  claim 8 , wherein the method further comprising a second cooling step comprising pressure decrease.

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