# US 8,770,177 B2 · Corrugated strap for securing a heat exchanger

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- Number: US 8,770,177 B2
- Document ID: US8770177B2
- Status: Granted
- Kind: B2
- Application number: 13/283,779
- Filed: 2011-10-28
- Published: 2013-05-02
- Granted: 2014-07-08
- Earliest claimed: 2011-10-28
- Assignees: Deere & Company
- Applicants: Ahmo Krgo; Bradley R. Watkins; Mark A. Taute
- Inventors: Ahmo Krgo; Bradley R. Watkins; Mark A. Taute
- Web page: https://patentgrep.com/patent/US8770177B2

## CPC

- F28F 9/002: {with fastening means for other structures}
- F02M 26/32: Liquid-cooled heat exchangers
- F28F 9/007: Auxiliary supports for elements
- F28F 9/013: for tubes or tube-assemblies
- F28D 21/0003: {the heat being recuperated from exhaust gases (F28D21/0014 takes precedence)}
- F28D 2021/0082: {Charged air coolers}
- F28F 2275/08: by clamping or clipping
- F28F 2275/085: with snap connection
- F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general)

## Abstract

Disclosed is a power system comprising a mount, a heat exchanger, and a corrugated strap positioned about the heat exchanger for securing the heat exchanger to the mount. The heat exchanger comprises a separation edge, and the corrugated strap may comprise a first corrugated section and a second corrugated section. A separation bend may be positioned between the first corrugated section and the second corrugated section, and the separation bend may overlap the separation edge.

## Claims

### Claim 1

A power system, comprising:
a mount;
a heat exchanger comprising a pair of edges and a surface positioned therebetween; and
a corrugated strap positioned about the heat exchanger for securing the heat exchanger to the mount, wherein the corrugated strap comprises a plurality of ridges and grooves positioned at least partially between the pair of edges, and the plurality of ridges and grooves overlap the surface.

### Claim 2 (depends on 1)

The power system of claim 1, wherein the heat exchanger is an exhaust gas recirculation cooler (EGR cooler) for cooling exhaust gas.

### Claim 3 (depends on 1)

The power system of claim 1, further comprising an engine, wherein the mount is be secured to the engine.

### Claim 4 (depends on 1)

The power system of claim 1, further comprising a mounting pad, wherein the heat exchanger comprises a first piece, a second piece, and a welded joint, the welded joint joins the first piece and the second piece, the mounting pad comprises a first lip positioned along a first side of the corrugated strap and comprises a second lip positioned along a second side of the corrugated strap, the first lip and the second lip are configured to axially position the corrugated strap relative to the heat exchanger, and the mounting pad is positioned between the welded joint and the corrugated strap.

### Claim 5 (depends on 1)

The power system of claim 1, wherein:
the corrugated strap comprises a first strap face; and
the mount comprises a first mounting face, the first mounting face has a first receiving hole, the first receiving hole is threaded, and the first strap face contacts the first mounting face.

### Claim 6 (depends on 1)

The power system of claim 1, wherein:
the corrugated strap comprises a second strap face; and
the mount comprises a second mounting face, the second mounting face has a second receiving hole, the second receiving hole is threaded, and the second strap face contacts the second mounting face.

### Claim 7

A power system, comprising:
a mount;
a heat exchanger comprising a separation edge; and
a corrugated strap positioned about the heat exchanger for securing the heat exchanger to the mount, the corrugated strap comprising:
a first corrugated section;
a second corrugated section; and
a separation bend positioned between the first corrugated section and the second corrugated section, the separation bend overlaps the separation edge.

### Claim 8 (depends on 7)

The power system of claim 7, further comprising a mounting pad, wherein the heat exchanger comprises a first piece, a second piece, and a welded joint, the welded joint joins the first piece and the second piece, and the mounting pad is positioned between the welded joint and the second corrugated section.

### Claim 9 (depends on 7)

The power system of claim 7, wherein the heat exchanger comprises a first edge, the corrugated strap comprises a first bend positioned between the first strap face and the first corrugated section, and the first bend overlaps the first edge.

### Claim 10 (depends on 9)

The power system of claim 9, wherein the heat exchanger comprises a second edge, the corrugated strap comprises a second bend positioned between the second strap face and the second corrugated section, and the second bend overlaps the second edge.

### Claim 11 (depends on 10)

The power system of claim 10, wherein the first corrugated section, the second corrugated section, the first bend and the second bend are positioned between the first strap face and the second strap face.

### Claim 12 (depends on 7)

The power system of claim 7, wherein the heat exchanger comprises a first piece, a second piece, and a welded joint, the welded joint joins the first piece and the second piece, and the first corrugated section comprises a weld channel positioned about the welded joint.

### Claim 13 (depends on 12)

The power system of claim 12, wherein the weld channel does not contact the welded joint.

### Claim 14 (depends on 13)

The power system of claim 13, wherein the weld channel has a flat apex.

### Claim 15 (depends on 14)

The power system of claim 14, further comprising an engine, wherein:
the mount is secured to the engine and comprises a first mounting face and a second mounting face, the first mounting face has a first receiving hole, the first receiving hole is threaded, the second mounting face has a second receiving hole, the second receiving hole is threaded;
the corrugated strap comprises a first strap face and a second strap face, the first strap face contacts the first mounting face, the second strap face contacts the second mounting face;
the heat exchanger comprises a first edge and a second edge, the corrugated strap comprises a first bend and a second bend, the first bend is positioned between the first strap face and the first corrugated section, the first bend overlaps the first edge, the second bend is positioned between the second strap face and the second corrugated section, and the second bend overlaps the second edge; and
the first corrugated section, the second corrugated section, and the separation bend are positioned between the first strap face and the second strap face.
