Plate heat exchanger having a plurality of plates stacked one upon the other

Patent metadata

Field	Value
Publication number	US-9528773-B2
Application number	US-201013383924-A
Country	US
Kind code	B2
Filing date	Jul 8, 2010
Priority date	Jul 16, 2009
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A plate heat exchanger may include a plurality of plates stacked one upon each other forming a stack. Each plate may alternately span a first and a second flow space forming a first and second medium respectively. Each plate may have a circumferential edge and a basin-shaped design. Two adjacent plates may be connected to each other via the circumferential edges. An end plate may be connected to at least one adjacent plate at least one end of the stack, wherein the circumferential edge of the at least on adjacent plate is supported on the end plate by a wall face of the end plate. The edge of the at least one adjacent plate may be formed parallel and fixedly connected to the wall face. The end plate may include an aluminium alloy, wherein the wall face is formed between two flat, generally parallel surfaces of the end plate.

First claim

The invention claimed is:

1. A plate heat exchanger comprising: a plurality of plates stacked one upon the other forming a stack of plates, each of the plurality of plates alternately span a first and a second flow space for forming a first and second medium respectively, wherein each plate has a circumferential edge and a basin-shaped design, and wherein two adjacent plates are in each case connected to each other via the circumferential edges, an end plate fixedly connected to at least one adjacent plate at at least one end of the stack, wherein the circumferential edge of the at least one adjacent plate is supported on the end plate by a wall face of the end plate, the edge of the at least one adjacent plate is formed at least generally parallel to and is fixedly connected to the wall face, wherein the at least one adjacent plate is a lowest plate of the plurality of plates and is included in whole within a depression within the end plate, and the end plate includes an upper planar surface and a lower planar surface, and the depression therein is between the upper and the lower planar surfaces, and the end plate is defined to have a unitary thickness between the upper planar surface and a bottom of the depression, and the unitary thickness extends beyond the circumferential edges of the plates,
wherein the end plate includes an aluminium alloy and the wall face is formed between two parallel surfaces of the end plate, wherein the two parallel surfaces include the upper planar surface and the lower planar surface;
further comprising a turbulence insert arranged between the at least one adjacent plate and the end plate.

2. The plate heat exchanger according to claim 1 , wherein the wall face is formed by an inner lateral face of basin-like receptacle in the end plate for the adjacent plate.

3. The plate heat exchanger according to claim 2 , wherein the end plate includes an essentially flat plate part and a frame part connected non-detachably to the plate part, wherein the receptacle is formed at least partially by the frame part.

4. The plate heat exchanger according to claim 2 , wherein a depth of the receptacle corresponds essentially to at least a height of the edge of the plate.

5. The plate heat exchanger according to claim 1 , wherein the wall face is at least partially formed by an outer lateral face of the end plate.

6. The plate heat exchanger according to claim 1 , wherein the adjacent plate is in contact with at least a portion of the end plate with the face facing the end plate.

7. The plate heat exchanger according to claim 1 , wherein the end plate is soldered to the adjacent plate.

8. The plate heat exchanger according to claim 1 , wherein the end plate has at least one of at least one opening and at least one connecting piece for at least one of the feed and discharge of the respective medium.

9. The plate heat exchanger according to claim 1 , wherein the end plate is produced using formed by an aluminium casting method using at least one of a thixocasting method and a Vacural die casting method.

10. The plate heat exchanger according to claim 1 , wherein the end plate forms a mounting plate of the plate heat exchanger.

11. The plate heat exchanger according to claim 1 , wherein the end plate forms a cover plate of the plate heat exchanger.

12. The plate heat exchanger according to claim 1 , wherein the end plate has honeycomb-like structure defining at least one cut-out to reduce the weight.

13. The plate heat exchanger according to claim 2 , wherein the adjacent plate is in contact with at least a portion of the end plate with the face facing the end plate.

14. The plate heat exchanger according to claim 2 , wherein the end plate has at least one of at least one opening and at least one connecting piece for at least one of the feed and discharge of the respective medium.

15. The plate heat exchanger according to claim 2 , wherein the end plate is formed by an aluminium casting method using at least one of a thixocasting method and a Vacural die casting method.

16. The plate heat exchanger according to claim 2 , wherein the end plate forms a mounting plate of the plate heat exchanger.

17. The plate heat exchanger according to claim 1 , wherein the end plate is attached to the lowest plate along an entire edge of the lowest plate.

18. A plate heat exchanger comprising:
a plurality of plates stacked one upon the other forming a stack of plates, each of the plurality of plates alternately span a first and a second flow space for forming a first and second medium respectively, wherein each plate has a circumferential edge and a basin-shaped design, and wherein two adjacent plates are in each case connected to each other via the circumferential edges, an end plate fixedly connected to at least one adjacent plate at at least one end of the stack, wherein the circumferential edge of the at least one adjacent plate is supported on the end plate by a wall face of the end plate, the edge of the at least one adjacent plate is formed at least generally parallel to and is fixedly connected to the wall face;
wherein the end plate includes an aluminium alloy and the wall face is formed between two parallel surfaces of the end plate;
wherein the wall face is formed by an inner lateral face of basin-like receptacle in the end plate for the adjacent plate;
wherein the receptacle is at least partially formed by a depression formed in the end plate and the at least one adjacent plate is included in whole within the depression, and the end plate includes an upper planar surface and a lower planar surface, and the depression therein is between the upper and the lower planar surfaces, wherein the two parallel surfaces include the upper planar surface and the lower planar surface, and the end plate extends having a unitary thickness from the upper planar surface to a bottom of the depression, and the unitary thickness extends beyond the circumferential edges of the plates,
wherein the wall face is at least partially formed by an outer lateral face of the end plate;
further comprising a turbulence insert arranged between the at least one adjacent plate and the end plate;
wherein the at least one adjacent plate is in contact with the turbulence insert and attached thereto, and an outer surface of the at least one adjacent plate is in contact with an inner lateral face of the end plate.

Assignees

• Otahal Klaus
• Hawa Niki
• Mahle Int Gmbh

Inventors

• Otahal Klaus
• Hawa Niki

Classifications

• F28F2225/04

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• F28D2021/0089

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• F28D9/005 Primary

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• F28F9/02

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• F28F2280/06

  Adapter frames, e.g. for mounting heat exchanger cores on other structure and for allowing fluidic connections · CPC title