Heat Exchanger

• US 20120000634A1
• Filed: 03/31/2011
• Published: 01/05/2012
• Est. Priority Date: 03/31/2010
• Status: Abandoned Application

• Current Assignee: Valeo Autosystemy Sp Z O O (Valeo SE)
• Original Assignee: Valeo Autosystemy Sp Z O O (Valeo SE)
• Inventors: ROD, Janusz, RIVIERE, Sebastien
• Application Number:
  US13/076,770
• Publication Number:
  US 20120000634A1
• Time in Patent Office: Days
• US Class Current: 165/173
• CPC Class Codes: F28D 1/0391 a single plate being bent to form one or more conduits
• CPC Class Codes: F28D 1/05383 with multiple rows of conduits or with multi-channel conduits F28D1/05391 takes precedence
• CPC Class Codes: F28F 1/022 with multiple channels
• CPC Class Codes: F28F 2210/08 Assemblies of conduits having different features
• CPC Class Codes: F28F 2225/00 Reinforcing means
• CPC Class Codes: F28F 2270/02 by using blind conduits
• CPC Class Codes: F28F 9/0209 having only transversal partitions

Abstract

A heat exchanger for an automotive vehicle comprises a tank and a beam of tubes, received at their extremities in openings of the tank where the tubes are linked to the tank through tube to tank junctions. Some of the tube to tank junctions suffer thermal stress. At least some of the tubes involved in the tube to tank junctions suffering thermal stress have a higher mechanical resistance than the other tubes.

Claims

1. A heat exchanger for an automotive vehicle, said heat exchanger comprising a tank and a beam of tubes, received at their extremities in openings of said tank where said tubes are linked to said tank through tube to tank junctions, wherein some of said tube to tank junctions suffer thermal stress, and wherein at least some of the tubes involved in said tube to tank junctions suffering thermal stress have a higher mechanical resistance than the other tubes.

2. A heat exchanger according to claim 1, wherein said tubes having higher mechanical resistance are extruded tubes and said other tubes are folded tubes.

3. A heat exchanger according to claim 2, wherein said extruded tubes have a radial wall thickness to transverse wall thickness ratio superior or equal to 1.5.

4. A heat exchanger according to claim 3, wherein said radial wall thickness is within the range of 0.225 mm to 5 mm.

5. A heat exchanger according to claim 3, wherein said radial wall thickness is equal to 1.5 mm.

6. A heat exchanger according to claim 3, wherein said transverse wall thickness is within the range of 0.15 mm to 3 mm.

7. A heat exchanger according to claim 3, wherein said transverse wall thickness is equal to 0.35 mm.

8. A heat exchanger according to claim 2, wherein said extruded tubes comprise a number of ribs between 2 and 12, each rib having a thickness within the range of 0.15 mm and 3 mm.

9. A heat exchanger according to claim 8, wherein the number of ribs is 3, and wherein the thickness of each rib is 0.35 mm.

10. A heat exchanger according to claim 2, wherein said extruded tubes are located at both ends of said beam.

11. A heat exchanger according to claim 2, further comprising at least one baffle located between two openings of said tank, wherein said tubes received in these two openings are extruded tubes.

12. A heat exchanger according to claim 3, further comprising at least one baffle located between two openings of said tank, wherein

said extruded tubes comprise a number of ribs between 2 and 12, each rib having a thickness within the range of 0.15 mm and 3 mm,

said extruded tubes are located at both ends of said beam, and

said tubes received in the two openings of said tank are extruded tubes.