Corrugated rib structure

Abstract

A corrugated rib structure for a heat exchanger may include wave-shaped wave crests and wave troughs running in a through-flow direction, and which may be connected with one another via wave-shaped walls running in the through-flow direction; and inwardly flared fins provided in at least one of: (i) the wave crests, and (ii) the wave troughs.

1 . A corrugated rib structure for a heat exchanger comprising:
 wave-shaped wave crests and wave troughs running in a through-flow direction, and which are connected with one another via wave-shaped walls running in the through-flow direction; and   inwardly flared fins provided in at least one of: (i) the wave crests, and (ii) the wave troughs.   
     
     
         2 . The corrugated rib structure according to  claim 1 , wherein the fins are flared inwards about an angle Φ between 30°≤Φ≤80°. 
     
     
         3 . The corrugated rib structure according to  claim 1 , wherein a wave length L in the through-flow direction is between 7 mm≤L≤12 mm. 
     
     
         4 . The corrugated rib structure according to  claim 1 , wherein a wave height H in through-flow direction is between 1 mm≤H≤1.5 mm. 
     
     
         5 . The corrugated rib structure according to  claim 1 , wherein the fin has a trapezoidal shape with one shorter base side, one longer base side and two legs. 
     
     
         6 . The corrugated rib structure according to  claim 5 , wherein at least one of:
 the shorter base side has a width of about 0.88 mm;   the longer base side has a width of about 1.6 mm; and   the legs have a length of about 0.95 mm.   
     
     
         7 . The corrugated rib structure according to  claim 5 , wherein the longer base side of the trapezoidal fin is inclined about an angle α of about 70° to the through-flow direction. 
     
     
         8 . The corrugated rib structure according to  claim 1 , wherein the walls form an angle β between 92°≤β≤94° to a corresponding wave crest and wave trough connected thereto. 
     
     
         9 . The corrugated rib structure according to  claim 1 , wherein the corrugated rib structure is formed as a deep-drawn sheet metal stamped part. 
     
     
         10 . The corrugated rib structure according to  claim 1 , wherein at least one of:
 at least one wave crest has a saddle width of 2 mm to 4 mm;   at least one wave trough has a trough width of 2 mm to 4 mm; and   the corrugated rib structure has a height of 3 mm to 5 mm.   
     
     
         11 . The corrugated rib structure according to  claim 1 , wherein a metal sheet of the corrugated rib structure has a thickness of 0.08 mm to 0.2 mm. 
     
     
         12 . A heat exchanger comprising at least one corrugated rib structure having:
 wave-shaped wave crests and wave troughs running in a through-flow direction, and which are connected with one another via wave-shaped walls running in the through-flow direction; and   inwardly flared fins provided in at least one of: (i) the wave crests, and (ii) the wave troughs.   
     
     
         13 . The heat exchanger according to  claim 12 , wherein at least one of:
 the fins are flared inwards about an angle Φ between 30°≤Φ≤80°;   a wave length L in the through-flow direction is between 7 mm≤L≤12 mm;   a wave height H in through-flow direction is between 1 mm≤H≤1.5 mm; and   the walls form an angle β between 92°≤β≤94° to a corresponding wave crest and wave trough connected thereto.   
     
     
         14 . The heat exchanger according to  claim 12 , wherein the fin has a trapezoidal shape with one shorter base side, one longer base side and two legs. 
     
     
         15 . The heat exchanger according to  claim 14 , wherein at least one of:
 the shorter base side has a width of about 0.88 mm;   the longer base side has a width of about 1.6 mm; and   the legs have a length of about 0.95 mm.   
     
     
         16 . The heat exchanger according to  claim 14 , wherein the longer base side of the trapezoidal fin is inclined about an angle α of about 70° to the through-flow direction. 
     
     
         17 . The heat exchanger according to  claim 12 , wherein at least one of:
 at least one wave crest has a saddle width of 2 mm to 4 mm;   at least one wave trough has a trough width of 2 mm to 4 mm; and   the corrugated rib structure has a height of 3 mm to 5 mm.   
     
     
         18 . The corrugated rib structure according to  claim 2 , wherein 1 is approximately 55°. 
     
     
         19 . The corrugated rib structure according to  claim 11 , wherein the thickness of the metal sheet is 0.15 mm. 
     
     
         20 . A corrugated rib structure for a heat exchanger comprising:
 wave-shaped wave crests and wave troughs running in a through-flow direction, and which are connected with one another via wave-shaped walls running in the through-flow direction; and   inwardly flared fins provided in at least one of: (i) the wave crests, and (ii) the wave troughs;   wherein:
 the fins are flared inwards about an angle Φ between 30°≤Φ≤80°; 
 a wave length L in the through-flow direction is between 7 mm≤L≤12 mm; 
 a wave height H in through-flow direction is between 1 mm≤H≤1.5 mm; and 
 the walls form an angle β between 92°≤β≤94° to a corresponding wave crest and wave trough connected thereto.