Heat exchanger

Abstract

A heat exchanger may include a plurality of tubes and a plurality of corrugated fins arranged between the plurality of tubes. The plurality of corrugated fins may have straight flanks and may define a plurality of corrugation troughs and a plurality of corrugation peaks each having a curve. According to one example, the curve of a corrugation peak may have a curved first segment and a linear second segment. According to another example, the curve of a corrugation peak may have a curved first segment and a curved second segment that is curved in the same direction as the curved first segment. A laminated adhesive layer may be disposed on an outer side of the plurality of tubes.

1 . A heat exchanger, comprising:
 a plurality of tubes and a plurality of corrugated fins arranged therebetween, the plurality of corrugated fins having straight flanks and defining a plurality of corrugation troughs and a plurality of corrugation peaks each having a curve, wherein:
 the curve of at least one corrugation peak has a curved first segment and a linear second segment, wherein the second segment is at least twice as long as the first segment, and the first segment and the second segment have an opposite slope of 0.1 to 0.5; or 
 the curve of at least one corrugation peak has a curved first segment and an equally long second segment curved in a direction the same as the first segment, wherein a tolerance distance is provided between two adjacent corrugation peaks when the plurality of corrugated fins are unloaded, and upon being loaded the tolerance distance reduces to zero in in an installed state such that the plurality of corrugation peaks lie in contact with one another; and 
   a laminated adhesive layer disposed on an outer side of the plurality of tubes.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein the plurality of corrugation troughs correspond to a reversed configuration of the at least one corrugation peak. 
     
     
         3 . The heat exchanger according to  claim 1 , wherein the plurality of corrugated fins are bonded to the plurality of tubes in a region of the plurality of corrugation peaks and the plurality of corrugation troughs. 
     
     
         4 . The heat exchanger according to  claim 1 , wherein the curve of the at least one corrugation peak has the curved first segment and the linear second segment, and wherein the opposite slope of the first segment and the second segment is 0.3-0.4. 
     
     
         5 . The heat exchanger according to  claim 1 , wherein the heat exchanger is configured as an evaporator, as an engine cooler, as a condenser, as a charge air cooler, as a chiller, as an oil cooler, as a heating body or as a PTC auxiliary heater. 
     
     
         6 . The heat exchanger according to  claim 1 , wherein the plurality of corrugated fins are composed of an aluminium material. 
     
     
         7 . The heat exchanger according to  claim 1 , wherein the plurality of corrugated fins lie flat against the plurality of tubes in a region of the plurality of corrugation peaks and the plurality of corrugation troughs. 
     
     
         8 . An internal combustion engine, comprising: a heat exchanger including:
 a plurality of tubes;   a plurality of corrugated fins arranged between the plurality of tubes, the plurality of corrugated fins having straight flanks and defining a plurality of corrugation troughs and a plurality of corrugation peaks;   a laminated adhesive layer disposed on an outer side of the plurality of tubes; and   wherein the plurality of corrugated peaks and the plurality of corrugated troughs each have a curve, and wherein:
 the curve of at least one corrugation peak has a curved first segment and a linear second segment, wherein the linear second segment is at least twice as long as the curved first segment, and the curved first segment and the linear second segment have an opposite slope of 0.1 to 0.5; or 
 the curve of at least one corrugation peak has a curved first segment and an equally long second segment curved in a direction the same as the curved first segment, wherein a tolerance distance is provided between two adjacent corrugation peaks when the plurality of corrugated fins are unloaded, and upon being loaded the tolerance distance reduces to zero when the heat exchanger is in an installed state such that the plurality of corrugation peaks lie in contact with one another. 
   
     
     
         9 . The internal combustion engine according to  claim 8 , wherein the plurality of corrugated fins are bonded to the plurality of tubes in a region of the plurality of corrugation peaks and the plurality of corrugation troughs. 
     
     
         10 . The internal combustion engine according to  claim 8 , wherein the curve has the curved first segment and the linear second segment, and wherein the opposite slope of the first segment and the second segment is 0.3-0.4. 
     
     
         11 . The internal combustion engine according to  claim 8 , wherein the heat exchanger is configured as an evaporator, as an engine cooler, as a condenser, as a charge air cooler, as a chiller, as an oil cooler, as a heating body or as a PTC auxiliary heater. 
     
     
         12 . The internal combustion engine according to  claim 8 , wherein the plurality of corrugated fins are composed of an aluminium material. 
     
     
         13 . The internal combustion engine according to  claim 8 , wherein the plurality of corrugated fins lie flat against the plurality of tubes in a region of the plurality of corrugation peaks and the plurality of corrugation troughs. 
     
     
         14 . The internal combustion engine according to  claim 8 , wherein the plurality of corrugation troughs correspond to a reversed configuration of the at least one corrugation peak. 
     
     
         15 . The internal combustion engine according to  claim 8 , wherein the curve of each one of the plurality of corrugation peaks has the curved first segment and the curved second segment, and wherein the plurality of corrugated fins are composed of an aluminium material. 
     
     
         16 . The heat exchanger according to  claim 1 , wherein the curve of each one of the plurality of corrugation peaks has the curved first segment and the linear second segment, and wherein the plurality of corrugated fins are coupled to the plurality of tubes in a region of at least one of the plurality of corrugation peaks and the plurality of corrugation troughs. 
     
     
         17 . The heat exchanger according to  claim 1 , wherein the curve of each one of the plurality of corrugation peaks has the curved first segment and the curved second segment, and wherein the plurality of corrugated fins are coupled to the plurality of tubes in a region of at least one of the plurality of corrugation peaks and the plurality of corrugation troughs. 
     
     
         18 . The heat exchanger according to  claim 2 , wherein the plurality of corrugated fins are bonded to the plurality of tubes in a region of the plurality of corrugation peaks and the plurality of corrugation troughs. 
     
     
         19 . The heat exchanger according to  claim 2 , wherein the curve of the at least one corrugated peak has the curved first segment and the linear second segment, and wherein the opposite slope of the first segment and the second segment is 0.3-0.4. 
     
     
         20 . A heat exchanger, comprising:
 a plurality of tubes;   a plurality of corrugated fins arranged between the plurality of tubes, the plurality of corrugated fins having straight flanks and defining a plurality of corrugation troughs and a plurality of corrugation peaks;   a laminated adhesive layer disposed on an outer side of the plurality of tubes;   wherein the plurality of corrugated peaks and the plurality of corrugated troughs each have a curve, and wherein:
 the curve of each corrugation peak of the plurality of corrugation peaks has a curved first segment and a linear second segment, wherein the linear second segment is at least twice as long as the curved first segment, and the curved first segment and the linear second segment have an opposite slope of 0.1 to 0.5; or 
 the curve of each corrugation peak of the plurality of corrugation peaks has a curved first segment and an equally long second segment curved in a direction the same as the curved first segment, wherein a tolerance distance is provided between two adjacent corrugation peaks when the plurality of corrugated fins are unloaded, and upon being loaded the tolerance distance reduces to zero in an installed state such that the plurality of corrugation peaks lie in contact with one another; and 
   wherein the plurality of corrugated fins are secured via a bonded connection to the plurality of tubes in a region of the plurality of corrugation peaks and the plurality of corrugation troughs.