Stacked plate heat exchanger

Patent metadata

Field	Value
Publication number	US-10876802-B2
Application number	US-201916396152-A
Country	US
Kind code	B2
Filing date	Apr 26, 2019
Priority date	Apr 27, 2018
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A stacked plate heat exchanger may include a plurality of stacked plates stacked on top of one another, between which a plurality of hollow spaces for two media may be alternately defined. The plurality of stacked plates may include at least two first stacked plates and at least one second stacked plate. The plurality of stacked plates may respectively include at least one first passage opening surrounded by a dome and at least one second passage opening. The at least one second passage opening of the at least one second stacked plate may be surrounded by an annular bead. The at least one second stacked plate may be arranged between the at least two first stacked plates such that the dome of a lower first stacked plate, the dome of an upper first stacked plate, and the annular bead are connected to one another and define an immersion tube.

First claim

The invention claimed is:

1. A stacked plate heat exchanger, comprising:
a plurality of stacked plates stacked on top of one another and soldered to one another, between which a plurality of hollow spaces for two media are alternately defined;
at least two first stacked plates of the plurality of stacked plates respectively including at least one first passage opening and at least one second passage opening the at least one first passage opening surrounded by a dome projecting from a stacked plate plane;
at least one second stacked plate of the plurality of stacked plates including at least one first passage opening surrounded by a projecting dome and a second passage opening, the second passage opening of the at least one second stacked plate surrounded by an annular bead projecting from the stacked plate plane;
the at least one second stacked plate arranged between the at least two first stacked plates such that i) a free edge of the annular bead is connected to a free edge of the dome of a lower first stacked plate of the at least two first stacked plates arranged below the at least one second stacked plate and ii) an annular bead peak region of the at least one second stacked plate is connected to a foot of the dome of an upper first stacked plate of the at least two first stacked plates arranged above the at least one second stacked plate; and
wherein an immersion tube passage is defined by the dome of the lower first stacked plate, the dome of the upper first stacked plate, and the annular bead connected to one another.

2. The stacked plate heat exchanger according to claim 1 , wherein the at least one second passage opening of the at least two first stacked plates is a punched passage opening.

3. The stacked plate heat exchanger according to claim 1 , wherein at least two first openings are disposed spaced apart from one another in a circumferential direction of and radially outside of the dome of each of the at least two first stacked plates.

4. The stacked plate heat exchanger according to claim 1 , wherein the annular bead peak region is flat and includes a plurality of second openings.

5. The stacked plate heat exchanger according to claim 3 , wherein the at least two first openings are one of a circular shape and an annular segment shape.

6. The stacked plate heat exchanger according to claim 4 , wherein:
at least two first openings are disposed spaced apart from one another in a circumferential direction of and radially outside of the dome of each of the at least two first stacked plates; and
the at least two first openings and the plurality of second openings are arranged aligned with one another and define a return passage which surrounds the immersion tube passage.

7. The stacked plate heat exchanger according to claim 1 , further comprising a turbulence insert arranged in at least one of the plurality of hollow spaces.

8. The stacked plate heat exchanger according to claim 1 , wherein the stacked plate heat exchanger is structured as one of a chiller, an oil cooler, and an indirect evaporator.

9. The stacked plate heat exchanger according to claim 1 , further comprising a plurality of lateral outlets having a rounded contour and an angular contour.

10. The stacked plate heat exchanger according to claim 9 , wherein at least one of:
the plurality of lateral outlets are arranged in a lower region distant from an inflow opening; and
the plurality of lateral outlets are punched outlets defined by a plurality of straps, each of the plurality of straps defined by a portion of one of the free edge of the annular bead and the free edge of the dome of the lower first stacked plate.

11. The stacked plate heat exchanger according to claim 4 , wherein the plurality of second openings are one of a circular shape and an annular segment shape.

12. A stacked plate heat exchanger, comprising:
a plurality of stacked plates stacked on top of one another in a stacking direction and soldered to one another, between which a plurality of hollow spaces for two media are alternately defined, the plurality of stacked plates including a plurality of first stacked plates and a plurality of second stacked plates;
the plurality of stacked plates respectively including at least one first passage opening surrounded by a dome projecting therefrom in the stacking direction and at least one second passage opening, the at least one second passage opening of the plurality of second stacked plates surrounded by an annular bead projecting therefrom in the stacking direction;
wherein each of the plurality of second stacked plates is arranged between two adjacent first stacked plates of the plurality of first stacked plates such that i) a free edge of the annular bead is coupled to a free edge of the dome of a lower first stacked plate of the two adjacent first stacked plates and ii) an annular bead peak region of the annular peak is coupled to a foot of the dome of an upper first stacked plate of the two adjacent first stacked plates; and
wherein the dome of the lower first stacked plate, the dome of the upper first stacked plate, and the annular bead coupled to one another define an immersion tube passage.

13. The stacked plate heat exchanger according to claim 12 , wherein each of the plurality of first stacked plates includes at least two first openings disposed radially outside of the dome and spaced apart from one another in a circumferential direction of the dome.

14. The stacked plate heat exchanger according to claim 12 , wherein the annular bead peak region is flat and includes a plurality of second openings.

15. The stacked plate heat exchanger according to claim 13 , wherein the at least two first openings are one of a circular shape and an annular segment shape.

16. The stacked plate heat exchanger according to claim 14 , wherein:
each of the plurality of first stacked plates includes at least two first openings disposed spaced apart from one another in a circumferential direction of the dome and radially outside of the dome; and
the at least two first openings and the plurality of second openings are arranged aligned with one another and define a return passage surrounding the immersion tube passage.

17. The stacked plate heat exchanger according to claim 12 , further comprising a turbulence insert arranged in at least one of the plurality of hollow spaces.

18. The stacked plate heat exchanger according to claim 12 , further comprising a plurality of lateral outlets each having one of a rounded contour and an angular contour.

19. The stacked plate heat exchanger according to claim 18 , further comprising an inflow opening disposed spaced apart from a lower region, wherein the plurality of lateral outlets are arranged in the lower region.

20. The stacked plate heat exchanger according to claim 18 , wherein the plurality of lateral outlets are punched outlets defined by a plurality of straps, each of the plurality of straps defined by a portion of one of the free edge of the annular bead and the free edge of the dome of the lower first stacked plate.

Assignees

• Mahle Int Gmbh

Inventors

• Dolderer Axel
• Draenkow Andreas
• Feldkeller Timo
• Mager Thomas
• Merten Thomas
• Wesner Markus

Classifications

• F28D9/00

  Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall {(F28F3/083, F28F3/086 take precedence)} · CPC title

• F28F9/026

  with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits · CPC title

• F28F3/048

  in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels · CPC title

• F28D9/0043 Primary

  the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another · CPC title

• F28F3/10

  Arrangements for sealing the margins · CPC title