Heat exchanger for vehicle

Abstract

A heat exchanger for a motor vehicle including a pair of tanks located apart from each other and a core part located between the pair of tanks. The core part has a plurality of tubes and a plurality of corrugated fins arranged between the adjacent tubes, where the corrugated fins are formed with a plurality of louvers. The corrugated fins have an upstream projecting portion provided with a projecting portion so that cooling air converges downward to be conducted to the louvers by the projecting portion.

1 - 8 . (canceled) 
   
   
       9 . A heat exchanger for a motor vehicle comprising:
 a pair of tanks located apart from each other; and   a core part located between the pair of tanks and having a plurality of tubes and a plurality of corrugated fins arranged between the adjacent tubes, the corrugated fins being formed with a plurality of louvers, wherein   the corrugated fins have an upstream projecting portion provided with a projecting portion so that cooling air converges downward to be conducted to the louvers by the projecting portion.   
   
   
       10 . The heat exchanger according to  claim 9 , wherein
 the heat exchanger has a radiator with a core part and a condenser with a core part, the core parts being arranged near each other to have a plurality of corrugated fins, piled up alternately with tubes, so that upstream portions and downstream portions of the corrugated fins are shared for the core parts, respectively, wherein   the corrugated fins are formed with first louvers at a position corresponding to the core part of the radiator and second louvers at a position corresponding to the core part of the condenser, and wherein   the projecting portion is provided on the corrugated fins between the core parts.   
   
   
       11 . The heat exchanger according to  claim 10 , wherein
 the projecting portion projects in a direction where the cooling air flows into the louvers arranged at a downstream side of the projecting portion.   
   
   
       12 . The heat exchanger according to  claim 11 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have linear portions whose extended lines intersect each other on the central line.   
   
   
       13 . The heat exchanger according to  claim 11 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have curved portions which are bent to further depart from each other toward the downstream side.   
   
   
       14 . The heat exchanger according to  claim 10 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have linear portions whose extended lines intersect each other on the central line.   
   
   
       15 . The heat exchanger according to  claim 10 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have curved portions which are bent to further depart from each other toward the downstream side.   
   
   
       16 . The heat exchanger according to  claim 9 , wherein
 the heat exchanger has a radiator with a core part and a condenser with a core part arranged near the core part of the radiator, wherein   a plurality of first corrugated fins of the radiator, piled up alternately with tubes, have upstream projecting portions, and a plurality of second corrugated fins of the condenser, piled up alternately with tubes, have downstream projecting portions to approach the upstream projecting portions, and wherein   the upstream projecting portions and the downstream projecting portions have the projecting portion.   
   
   
       17 . The heat exchanger according to  claim 16 , wherein
 the projecting portion projects in a direction where the cooling air flows into the louvers arranged at a downstream side of the projecting portion.   
   
   
       18 . The heat exchanger according to  claim 16 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have linear portions whose extended lines intersect each other on the central line.   
   
   
       19 . The heat exchanger according to  claim 16 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have curved portions which are bent to further depart from each other toward the downstream side.   
   
   
       20 . The heat exchanger according to  claim 16 , wherein
 the first corrugated fins and the second corrugated fins are different in at least one of fin pitch and fin height.   
   
   
       21 . The heat exchanger according to  claim 9 , wherein
 the projecting portion projects in a direction where the cooling air flows into the louvers arranged at a downstream side of the projecting portion.   
   
   
       22 . The heat exchanger according to  claim 21 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have linear portions whose extended lines intersect each other on the central line.   
   
   
       23 . The heat exchanger according to  claim 21 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have curved portions which are bent to further depart from each other toward the downstream side.   
   
   
       24 . The heat exchanger according to  claim 21 , wherein
 the corrugated fins includes first corrugated fins for a radiator and second corrugated fins for a condenser, the first corrugated fins and the second corrugated fins being different in at least one of fin pitch and fin height.   
   
   
       25 . The heat exchanger according to  claim 9 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have linear portions whose extended lines intersect each other on the central line.   
   
   
       26 . The heat exchanger according to  claim 25 , wherein
 the corrugated fins includes first corrugated fins for a radiator and second corrugated fins for a condenser, the first corrugated fins and the second corrugated fins being different in at least one of fin pitch and fin height.   
   
   
       27 . The heat exchanger according to  claim 9 , wherein
 the projecting portion includes a first projecting portion and a second projecting portion that are arranged like a V-letter shape, wherein   the first projecting portion and the second projecting portion are arranged symmetrically relative to a central line extending in a longitudinal direction of the corrugated fin at a central height thereof, and wherein   the first projecting portion and the second projecting portion have curved portions which are bent to further depart from each other toward the downstream side.   
   
   
       28 . The heat exchanger according to  claim 27 , wherein
 the corrugated fins includes first corrugated fins for a radiator and second corrugated fins for a condenser, the first corrugated fins and the second corrugated fins being different in at least one of fin pitch and fin height.