Tube for a heat exchanger

Abstract

A tube for a heat exchanger, including a first plate and a second plate, each with two longitudinal edges and two lateral edges and a first inlet and a first outlet. The plates being connected to each other so that a channel for the heat exchange fluid is formed. Each plate includes first dimples and second dimples. The first dimples are arranged in first rows. The second dimples are arranged in pairs extending between the longitudinal edges and in singularities arranged in between the longitudinal edges. The plates have an identical arrangement of the first and second dimples. The plates are stacked so that the first dimples extend towards each other. The first plate and the second plate are rotated with respect to each other 180 degrees within their respective planes defined by the longitudinal and lateral edges.

1 . A tube for a heat exchanger, comprising:
 a first plate with two longitudinal edges and two lateral edges and a first inlet and a first outlet for a heat exchange fluid,   a second plate with two longitudinal edges and two lateral edges,
 the first plate and the second plate being connected to each other so that the respective longitudinal edges and lateral edges of the plates are adjacent to each other and so that a channel for the heat exchange fluid is formed between the first inlet and the outlet, 
   wherein each of the first and the second plates includes first dimples and second dimples,   wherein the first dimples are arranged in first rows extending between the longitudinal edges,   wherein the second dimples are arranged in pairs extending between the longitudinal edges of the first plate and the second plate and in singularities arranged in-between the longitudinal edges of the first plate and the second plate,   wherein the first plate and the second plate have an identical arrangement of the first and second dimples,
 wherein the first plate and the second plate are stacked so that the first dimples of the first plate extend towards the second plate and the first dimples of the second plate extend towards the first plate, 
 wherein the first plate and the second plate are rotated with respect to each other 180 degrees within their respective planes defined by the longitudinal and lateral edges. 
   
     
     
         2 . The tube according to  claim 1 , wherein a portion of first rows includes neighboring first dimples arranged adjacent to each other. 
     
     
         3 . The tube according to  claim 1 , wherein a portion of first rows includes at least one second dimple between neighboring first dimples. 
     
     
         4 . The tube according to  claim 1 , wherein a portion of pairs or the second dimples includes at least one first dimple between neighboring second dimples. 
     
     
         5 . The tube according to  claim 1 , wherein a portion of first rows includes a non-dimpled plate section between neighboring first dimples. 
     
     
         6 . The tube according to  claim 1 , wherein a portion of first rows includes a non-dimpled plate section between neighboring first dimples, wherein the non-dimpled plate section is at least as long as the first dimple when measured along the lateral edges. 
     
     
         7 . The tube according to  claim 1 , wherein a portion of the first dimples of the first plate is in contact with a portion of the first dimples of the second plate. 
     
     
         8 . The tube according to  claim 1 , wherein a portion of the first dimples of the first plate is not in contact with any of the first dimples of the second plate. 
     
     
         9 . The tube according to  claim 1 , wherein a portion of the first dimples of the second plate is not in contact with any of the first dimples of the first plate. 
     
     
         10 . The tube according to  claim 1 , wherein the second dimples of the first plate extend away from the second plate and the second dimples of the second plate extend away from the first plate. 
     
     
         11 . The tube according to  claim 1 , wherein the second dimples of the first plate overlap the second dimples of the second plate. 
     
     
         12 . The tube according to  claim 1 , wherein the longitudinal edges are longer than lateral edges. 
     
     
         13 . The tube according to  claim 1 , wherein the first dimples are smaller than the second dimples. 
     
     
         14 . The tube according to  claim 1 , wherein the first dimples are of stadium shape. 
     
     
         15 . The tube according to  claim 1 , wherein each first dimples includes a flat, top portion. 
     
     
         16 . The tube according to  claim 1 , wherein the second dimples are of round shape. 
     
     
         17 . The tube according to  claim 1 , wherein the first dimples are arranged asymmetrically on the first plate and the second plate. 
     
     
         18 . The tube according to  claim 1 , wherein the second plate includes a second inlet and a second outlet for the heat exchange fluid connected fluidically with the first inlet and the first outlet. 
     
     
         19 . The tube according to  claim 18 , wherein the second inlet and the second outlet are covered by inserts integrally connected with the second tube. 
     
     
         20 . A heat exchanger for a fluid, comprising a tube including:
 a first plate with two longitudinal edges and two lateral edges and a first inlet and a first outlet for a heat exchange fluid,   a second plate with two longitudinal edges and two lateral edges,
 the first plate and the second plate being connected to each other so that the respective longitudinal edges and lateral edges of the plates are adjacent to each other and so that a channel for the heat exchange fluid is formed between the first inlet and the outlet, 
   wherein each of the first and the second plates includes first dimples and second dimples,   wherein the first dimples are arranged in first rows extending between the longitudinal edges,   wherein the second dimples are arranged in pairs extending between the longitudinal edges of the first plate and the second plate and in singularities arranged in-between the longitudinal edges of the first plate and the second plate,   wherein the first plate and the second plate have an identical arrangement of the first and second dimples,   wherein the first plate and the second plate are stacked so that the first dimples of the first plate extend towards the second plate and the first dimples of the second plate extend towards the first plate,
 wherein the first plate and the second plate are rotated with respect to each other 180 degrees within their respective planes defined by the longitudinal and lateral edges.