Heat exchanger assembly for a motor vehicle

• US 20060070725A1
• Filed: 10/01/2004
• Published: 04/06/2006
• Est. Priority Date: 10/01/2004
• Status: Active Grant

• Current Assignee: Mahle International GmbH (MAHLE-STIFTUNG GmbH)
• Original Assignee: Delphi Technologies, Inc. (Aptiv PLC)
• Inventors: Hambruch, Joel Thomas, Fuller, Christopher Alfred, Kroetsch, Karl Paul, Brick, Steve C., Smith, David Matthew
• Granted Patent: US 7,395,853 B2
• Time in Patent Office: Days
• US Class Current: 165/149
• CPC Class Codes: F28F 9/001 Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
• CPC Class Codes: F28F 9/0202 Header boxes having their inner space divided by partitions

Abstract

A heat exchanger assembly includes a core having first and second header tanks covered by tank caps. A pair of core reinforcing members presenting terminal ends extend between the first and second header tanks. A least one tab and an opening for receiving the tab are used for connecting the core reinforcing members to the tank caps.

Claims

1. A heat exchanger assembly for a motor vehicle comprising;

a core having opposite ends and opposite sides with a plurality of fins extending between said opposite sides and a plurality of tubes extending between said opposite ends,

first and second tanks having open ends and disposed at said opposite ends of said core and in a fluid communication with said tubes,

a plurality of tank caps with each tank cap closing one of said open ends to close all of said open ends,

a pair of core reinforcing members each extending between terminal ends and disposed along said opposite sides of said core,

at least one tab and an opening for receiving said tab for connecting each of said tank caps to an adjacent terminal end of said reinforcing members, and

said tab having a head and a neck more narrow in width than said head with said opening smaller than said head for retaining said tab in said opening for connecting said core reinforcing members to said tank caps as said heat exchanger assembly is brazed.

2. A heat exchanger assembly as set forth in claim 1 wherein each tank cap presents a recess having a bottom and sidewalls extending therefrom with said sidewalls engaging the interior of each tank and a rim surrounding said recess and engaging said open ends of each tank.

3. A heat exchanger assembly as set forth in claim 2 including a pair of rectangular flanges being integral with and extending outwardly in the opposite direction from said rim of said tank cap and extending downwardly to engage the exterior of each tank.

4. A heat exchanger assembly as set forth in claim 3 wherein said at least one tab is integral with and extends outwardly from said rim of said tank cap with said at least one tab sloping to said core reinforcing member.

5. A heat exchanger assembly as set forth in claim 4 wherein said opening is further defined by a cut-out portion presenting a rectangular configuration with said cut-out portion having a width with the width of said neck complementary with the width of said cut-out portion.

6. A heat exchanger assembly as set forth in claim 5 wherein each of said terminal ends presents a S-shaped configuration having a pair of reversed bends having a S-shaped configuration with the first bend overlying said rim.

7. A heat exchanger assembly as set forth in claim 6 wherein said reverse bends are more narrow in width than said tank cap.

8. A heat exchanger assembly as set forth in claim 7 wherein said neck and said head are interconnected by outwardly tapered sides to define a dove-tailed configuration of each tab.

9. A heat exchanger assembly as set forth in claim 7 wherein said second reverse bend includes a pair of opposite notches defined therein to present a bending joint between said second bend at the intersection of said S-shape and the reminder of said core reinforcing member.

10. A heat exchanger assembly as set forth in claim 9 including a gusset extending across said second bend to provide structural support to each of said S-shaped configuration at said terminal ends.

11. A heat exchanger assembly as set forth in claim 10 wherein each of said core reinforcing members includes a pair of spaced and parallel reinforcing flanges.

12. A heat exchanger assembly as set forth in claim 11 wherein said reinforcing flanges extend upwardly from said core reinforcing member and terminate short of said terminal ends.

13. A heat exchanger assembly as set forth in claim 12 wherein said core, said first and second tanks, said core reinforcing member, said tank caps, said tubes, and said fins are formed from aluminum.

14. A heat exchanger assembly as set forth in claim 13 wherein said core, said first and second tanks, said core reinforcing member, said tank caps, said tubes, and said fins are brazed together.