Pulsating multi-pipe heat pipe

Abstract

A pulsating multi-pipe heat pipe having its metal pipes arranged in-parallel and bent in snake-shaped loop, is capable of making the working fluid flow through the pulsating multi-pipe heat pipe, enhance the pressure difference therein so as to improve its heat-dissipating effect and successfully overcome the problems of horizontal action when the heat pipe is laid in horizontal position. This is done by attaching at least a chambered connector in the metal pipes having their cross-sectional areas greater than the total cross-sectional areas of the metal pipes or furnishing at least a pair of communicative penetrating holes at the side-by-side adjacent pipe walls making the working fluid create cross-flow within the pulsating multi-pipe heat pipe.

What is claimed is: 
     
         1 . A pulsating multi-pipe heat pipe, comprising:
 at least two metal pipes having a plurality of snake-shaped bent loops at a first end thereof, while the other end is a second end, and the two metal pipes are in-parallel, and having a working fluid that is filled thereof; and   at least a chambered connector to be connected to both ends of each of the at least two metal pipes.   
     
     
         2 . The pulsating multi-pipe heat pipe in  claim 1 , wherein the diameters of the at least two metal pipes are equal. 
     
     
         3 . The pulsating multi-pipe heat pipe in  claim 1 , wherein the diameters of the at least two metal pipes are unequal. 
     
     
         4 . The pulsating multi-pipe heat pipe in  claim 1 , wherein the dimension of the diameter of the metal pipes is in the range of 0.1˜8.0 mm. 
     
     
         5 . The pulsating multi-pipe heat pipe in  claim 1 , wherein both the dimensions of the width and height of the chambered connector are in the range of 2 D˜10 D while the length of which is in the range of 2 D˜20 D where D being the diameter of the heat pipe. 
     
     
         6 . The pulsating multi-pipe heat pipe in  claim 1 , wherein the pulsating multi-pipe heat pipe is capable of being operated either in horizontal and or in negative 90° positions when the heat pipe is filled with working fluid and is subjected to heat. 
     
     
         7 . The pulsating multi-pipe heat pipe in  claim 1 , wherein the filling rate of the working fluid is in a range of 30˜80% (volumetric ratio). 
     
     
         8 . The pulsating multi-pipe heat pipe in  claim 1 , wherein a heat-absorbing end is at the first end and a heat-dissipating end is at the second end. 
     
     
         9 . A pulsating multi-pipe heat pipe, comprising:
 a combined pulsating multi-pipe heat pipe having their second ends connected each other at the center part and their other two ends at the third and fourth ends, each of the combined pulsating multi-pipe heat pipes being a single pipe has a plurality of snake-shaped bent loops at the third and the four end respectively and having a working fluid that is filled thereof; and   at least a chambered connector to be connected at both ends of the metal pipes and at the center part of the combined pulsating multi-pipe heat pipe, to be a common chambered connector.   
     
     
         10 . The pulsating multi-pipe heat pipe in  claim 9 , wherein the diameters of the at least two metal pipes are equal. 
     
     
         11 . The pulsating multi-pipe heat pipe in  claim 9 , wherein the diameters of the at least two metal pipes are unequal. 
     
     
         12 . The pulsating multi-pipe heat pipe in  claim 9 , wherein the dimension of the diameter of the metal pipes is in the range of 0.1˜8.0 mm. 
     
     
         13 . The pulsating multi-pipe heat pipe in  claim 9 , wherein both the dimensions of the width and height of the chambered connector are in the range of 2 D˜10 D while the length of which is in the range of 2 D˜20 D where D being the diameter of the heat pipe. 
     
     
         14 . The pulsating multi-pipe heat pipe in  claim 9 , wherein the pulsating multi-pipe heat pipe is capable of being operated either in horizontal and or in negative 90° positions when the heat pipe is filled with working fluid and is subjected to heat. 
     
     
         15 . The pulsating multi-pipe heat pipe in  claim 9 , wherein the filling rate of the working fluid is in a range of 30˜80% (volumetric ratio). 
     
     
         16 . The pulsating multi-pipe heat pipe in  claim 9 , wherein the center part is a heat-absorbing end while the third end and the fourth end thereof is a heat-dissipating end. 
     
     
         17 . A pulsating multi-pipe heat pipe, comprising:
 at least two metal pipes having a plurality of snake-shaped bent loops at a first end thereof and having a working fluid that is filled thereof; and   two penetration holes being adjacent and face-to-face are drilled respectively at the metal pipes at a second end and soldered between them to form a passage to make the two metal pipes communicate each other.   
     
     
         18 . The pulsating multi-pipe heat pipe in  claim 17 , wherein the diameters of the at least two metal pipes are equal. 
     
     
         19 . The pulsating multi-pipe heat pipe in  claim 17 , wherein the diameters of the at least two metal pipes are unequal. 
     
     
         20 . The pulsating multi-pipe heat pipe in  claim 17 , wherein the dimension of the diameter of the metal pipes is in the range of 0.1˜8.0 mm. 
     
     
         21 . The pulsating multi-pipe heat pipe in  claim 17 , wherein the length of the penetration holes is in the range of 2 D˜20 D where D being the diameter of the heat pipe. 
     
     
         22 . The pulsating multi-pipe heat pipe in  claim 17 , wherein the pulsating multi-pipe heat pipe is capable of being operated either in horizontal and or in negative 90° positions when the heat pipe is filled with working fluid and is subjected to heat. 
     
     
         23 . The pulsating multi-pipe heat pipe in  claim 17 , wherein the filling rate of the working fluid is in a range of 30˜80%. 
     
     
         24 . The pulsating multi-pipe heat pipe in  claim 17 , wherein the first end of the at least two metal pipes having a plurality of snake-shaped heat pipes is a heat-absorbing end while the second end thereof is a heat-dissipating end.