One-Piece Turbulence Insert

Abstract

The invention relates to a one-piece turbulence insert for a heat exchanger ( 1 ), particularly for a radiator of a motor vehicle, comprising an essentially corrugated profile. The turbulence insert ( 24 ) has a number of sections ( 41 - 45 ) with corrugated profiles that extend in the same direction of the extension of the corrugations and which, perpendicular to the direction of the extension of the corrugations, are offset from one another. In order to enable a better thermodynamic efficiency, the turbulence insert ( 24 ) has a number of sections ( 27 - 32, 41, 45 ) with corrugated profiles extending in different directions of extension of the corrugations.

1 . A one-piece turbulence insert for a heat exchanger, in particular an automotive cooler, which has a substantially corrugated profile, the turbulence insert comprising a plurality of sections with corrugation profiles which propagate in the same direction of propagation and are offset to one another transversely to the direction of propagation, wherein the turbulence insert comprises a plurality of sections which have corrugation profiles propagating in different directions of propagation. 
   
   
       2 . The turbulence insert as claimed in  claim 1 , wherein the turbulence insert comprises a plurality of rectangular sections having corrugation profiles propagating in different directions of propagation. 
   
   
       3 . The turbulence insert as claimed in  claim 2 , wherein the turbulence insert is formed from a substantially rectangular plate which comprises a central portion having a plurality of sections with corrugation profiles propagating transversely to the longitudinal direction of the plate, and two outer portions having a plurality of sections with corrugation profiles propagating at an angle from 0 to 90 degrees with respect to a longitudinal side of the plate. 
   
   
       4 . The turbulence insert as claimed in  claim 3 , wherein the corrugation profiles in the sections of the outer portions arranged closer to the central portion propagate at a larger angle with respect to a longitudinal side of the plate than in the sections arranged further towards the outside. 
   
   
       5 . The turbulence insert as claimed in  claim 4 , wherein the angle with respect to a longitudinal side of the plate at which the corrugation profiles propagate in the outer portions of the plate decreases from the central portion towards the outside. 
   
   
       6 . The turbulence insert as claimed in  claim 1 , wherein the turbulence insert is formed by a substantially rectangular plate which comprises a central portion having a plurality of sections with corrugation profiles which propagate transversely to the longitudinal direction of the plate, and two outer portions having a plurality of sections with corrugation profiles which propagate in the longitudinal direction of the plate. 
   
   
       7 . The turbulence insert as claimed in  claim 6 , wherein deflection sections are formed between the corrugated profile sections which propagate transversely and longitudinally. 
   
   
       8 . The turbulence insert as claimed in  claim 7 , wherein the deflection sections are arranged diagonally in the outer portions of the plate. 
   
   
       9 . The turbulence insert as claimed in  claim 8 , wherein the direction of propagation of the corrugations changes in the deflection sections by 70 to 110 degrees, preferably by 85 to 95 degrees, especially preferably by 90 degrees. 
   
   
       10 . The turbulence insert as claimed in  claim 1 , wherein a fluid can flow successively through the sections which have corrugation profiles propagating in different directions of propagation. 
   
   
       11 . The turbulence insert as claimed in  claim 1 , wherein the direction of propagation of the corrugations within a section forms an acute angle with respect to one, in particular to all, boundaries of the section. 
   
   
       12 . The turbulence insert as claimed in  claim 11 , wherein the acute angle changes its sign from a first section to an adjacent second section. 
   
   
       13 . The turbulence insert as claimed in  claim 1 , wherein at least one corrugation profile extends across a boundary of two adjacent sections and, in particular, has curved flanks. 
   
   
       14 . An automotive heat exchanger, in particular a charge air cooler, an exhaust gas cooler or a coolant evaporator or condenser, having a turbulence insert as claimed in  claim 1 . 
   
   
       15 . The automotive cooler as claimed in  claim 1 , wherein the turbulence insert is fixed in a flow channel in a form-fitting manner. 
   
   
       16 . The automotive cooler as claimed in  claim 1 , wherein the turbulence insert is soldered, welded or bonded in a flow channel. 
   
   
       17 . The automotive cooler as claimed in  claim 1 , wherein the flow channel is formed by a tube or by two plates placed or stacked upon one another, or between two tubes.