Loop type thermo siphon, stirling cooling chamber, and cooling apparatus

Abstract

A loop thermosyphon includes a closed circuit configured of an evaporator, a condenser, a feed pope and a return pope, and the evaporator is an assembly including a header pipe associated with the feed pope, a header pipe associated with the return pipe, and a plurality of aligned pipes. Each of the aligned popes is a serpentine tube defined by a linear portion forming a plurality of stages in vertically parallel layers, and a curved portion connecting such linear portions together. The condenser is entirely inclined relative to a bottom surface of a casing mounting the loop thermosyphon such that the serpentine tube's linear portions have a bottommost linear portion inclined in a direction allowing the bottommost linear portion to be closer to the bottom surface of the casing as the bottommost linear portion approaches the header pipe associated with the return pipe.

1 . (canceled)  
   
   
       2 . (canceled)  
   
   
       3 . A Loop thermosyphon mounted at a casing of equipment having a heat source, and employing a working fluid enclosed in a closed circuit to transfer heat from said heat source, said closed circuit including: 
 an evaporator depriving said heat source of heat to evaporate said working fluid;    a condenser condensing said working fluid evaporated at said evaporator;    a feed pipe feeding to said condenser said working fluid evaporated at said evaporator; and    a return pipe returning to said evaporator said working fluid condensed at said condenser, wherein    said condenser is an assembly including a header pipe associated with said feed pipe, and connected to said feed pipe to branch said working fluid introduced thereinto, a header pipe associated with said return pipe, and connected to said return pipe and joining together said working fluid branched, and a plurality of aligned pipes extending in a same direction and connecting said header pipes together at a single side of said condenser,    said aligned pipes are each a serpentine tube having a linear portion extending in one direction and forming a plurality of stages in layers, and a curved portion connecting such linear portions together, and    said condenser is entirely inclined relative to a bottom surface of said casing within a range larger than 0° to at most 6° such that of said linear portions, a bottommost linear portion is inclined in a direction allowing said bottommost linear portion to be closer to said bottom surface as said bottommost linear portion approaches said header pipe associated with said return pipe, so that defective operation attributed to disposition is prevented.    
   
   
       4 . The loop thermosyphon according to  claim 3 , wherein said condenser is arranged to incline relative to said bottom surface of said casing at an angle of 3°.  
   
   
       5 . The loop thermosyphon according to  claim 3 , wherein: 
 said header pipe associated with said return pipe extends in a second direction traversing said first direction;    said return pipe is connected in a vicinity of one end of said header pipe associated with said return pipe and extending in said second direction; and    said header pipe associated with said return pipe is inclined in a direction allowing said header pipe associated with said return pipe to be closer to said bottom surface of said casing as said header pipe associated with said return pipe extends toward said one end from the other end positionally opposite said one end, so that defective operation attributed to disposition is prevented.    
   
   
       6 . A Stirling refrigerator having a Stirling refrigerating machine mounted, wherein: 
 said Stirling refrigerating machine includes the loop thermosyphon of  claim 3;  and    said evaporator is configured to exchange heat with a heated portion of said Stirling refrigerating machine.    
   
   
       7 . (canceled)  
   
   
       8 . (canceled)  
   
   
       9 . (canceled)  
   
   
       10 . (canceled)  
   
   
       11 . A cooling apparatus having a Stirling refrigerating machine, and a heat transfer cycle associated with a heated portion and externally radiating hot generated by said Stirling refrigerating machine at said heated portion, wherein: 
 said heat transfer cycle associated with said heated portion includes an evaporator associated with said heated portion and attached to said Stirling refrigerating machine at said heated portion and a condenser associated with said heated portion and arranged to be higher in level than said evaporator, with a vapor coolant pipe and a condensate coolant pipe connecting said evaporator and said condenser to form a coolant circulation circuit,    said condenser is formed of a plurality of condensation pipes and a fin,    said condensate coolant pipe includes a lateral pipe having closed opposite ends and connected to said plurality of condensation pipes at their respective ends, and a pair of vertical pipes connecting said evaporator and said lateral pipe together,    one of said vertical pipes has an upper end connected to said lateral pipe at one end and the other of said vertical pipes has an upper end connected to said lateral pipe at the other end, the cooling apparatus characterized in that said one vertical pipe has said upper end thereof connected to said lateral pipe at a location closer to said one end of said lateral pipe than said condensation pipes are connected to said lateral pipe, and said other vertical pipe has said upper end thereof connected to said lateral pipe at a location closer to said other end of said lateral pipe than said condensation pipes are connected to said lateral pipe.    
   
   
       12 . The cooling apparatus according to  claim 11 , wherein said vertical pipe has an inclined portion having a downward gradient.  
   
   
       13 . The cooling apparatus according to  claim 12 , wherein said downward gradient is at least 5° with reference to said cooling apparatus placed in a horizontal position.  
   
   
       14 . (canceled)