Heat exchanger module

Patent metadata

Field	Value
Publication number	US-12435933-B2
Application number	US-202318104830-A
Country	US
Kind code	B2
Filing date	Feb 2, 2023
Priority date	Feb 4, 2022
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

A heat exchanger module with a first block of a first heat exchanger, further with a second block of a second heat exchanger, and further with an expansion valve, wherein the first block, the second block and the expansion valve are designed as an interconnected module.

First claim

What is claimed is:

1. A heat exchanger module comprising:
a first block of a first heat exchanger, which is formed as a liquid-cooled condenser, the first block having first fluid channels for a refrigerant and having second fluid channels for a first liquid coolant;
a second block of a second heat exchanger, which is formed as a liquid-cooled chiller, the second block having third fluid channels for the refrigerant and fourth fluid channels for a second liquid coolant; and
an expansion valve,
wherein the first block, the second block, and the expansion valve are formed as an interconnected module,
wherein the first block has a first refrigerant inlet and a first refrigerant outlet and the second block has a second refrigerant inlet, a first refrigerant passage channel, a second refrigerant outlet and a third refrigerant inlet and a third refrigerant outlet,
wherein the expansion valve has a fourth refrigerant inlet and a fourth refrigerant outlet, and
wherein the first refrigerant outlet of the first block is in fluid connection with the second refrigerant inlet of the second block, the second refrigerant inlet of the second block is in fluid connection via the first refrigerant passage channel with the second refrigerant outlet of the second block, the second refrigerant outlet of the second block is in fluid connection with the fourth refrigerant inlet of the expansion valve and the fourth refrigerant outlet of the expansion valve is in fluid connection with the third refrigerant inlet of the second block.

2. The heat exchanger module according to claim 1 , wherein the first block is formed such that the refrigerant is flowable via the first refrigerant inlet into the first block, the first fluid channels of the first block are flowable by the refrigerant and the refrigerant is flowable through the first refrigerant outlet from the first block.

3. The heat exchanger module according to claim 1 , wherein the first block has a desuperheating and condensing section and a subcooling section, and wherein optionally a refrigerant collector is fluidly interconnected between the desuperheating and condensing section and the subcooling section.

4. The heat exchanger module according to claim 3 , wherein the first block has a second refrigerant passage channel and a third refrigerant passage channel, wherein the second refrigerant passage channel fluidly connects the desuperheating and condensing section with the refrigerant collector and the third refrigerant passage channel fluidly connects the refrigerant collector with the subcooling section, such that the refrigerant flows from the desuperheating and condensing section to the refrigerant collector via the second refrigerant passage channel, and the refrigerant flows from the refrigerant collector to the subcooling section via the third refrigerant passage channel.

5. The heat exchanger module according to claim 4 , wherein the second block is formed such that the refrigerant is flowable via the second refrigerant inlet of the second block into the second block, the second block is traversable by the refrigerant through the first refrigerant passage channel of the refrigerant and the refrigerant is flowable via the second refrigerant outlet to the expansion valve with the fourth refrigerant inlet, wherein the expansion valve is flowable by the refrigerant and the refrigerant is flowable from the fourth refrigerant outlet of the expansion valve into the third refrigerant inlet of the second block, the third fluid channels of the second block are flowable from the third refrigerant inlet, wherein at the third refrigerant outlet the refrigerant is adapted to flow out from the second block, wherein optionally between the third refrigerant inlet and the third fluid channels of the second block a fourth refrigerant passage channel is provided and/or optionally between the third fluid channels of the second block and the third refrigerant outlet a fifth refrigerant passage channel is provided.

6. The heat exchanger module according to claim 1 , wherein between the first block and the second block, a third block of a third heat exchanger is interconnected, which is formed as an internal heat exchanger, wherein the third block has fifth fluid channels for the refrigerant and sixth fluid channels for the refrigerant.

7. The heat exchanger module according to claim 6 , wherein the third block has a fifth refrigerant inlet and a fifth refrigerant outlet, which communicate with the fifth fluid channels, and wherein the third block has a sixth refrigerant inlet and a sixth refrigerant outlet, which communicate with the sixth fluid channels.

8. The heat exchanger module according to claim 7 , wherein the first refrigerant outlet of the first block is in fluid connection with the second refrigerant inlet of the second block via the fifth refrigerant inlet, the fifth fluid channels and the fifth refrigerant outlet of the third block, and
wherein the second block is interconnected such that at the third refrigerant outlet of the second block, the refrigerant is adapted to flow out from the second block and flow into the third block via the sixth refrigerant inlet, and the refrigerant is adapted to flow through the sixth fluid channels of the third block and flow out of the third block via the sixth refrigerant outlet of the third block.

9. The heat exchanger module according to claim 6 , wherein the first block, the second block and/or the third block are formed in stacked-plate design with a stacking of stacking plates, wherein in the stacking plates openings for the inflow and outflow of the refrigerant and/or liquid coolant are provided, and wherein between adjacent stacking plates, the first fluid channels, the second fluid channels, the third fluid channels, the fourth fluid channels, the fifth fluid channels and/or the sixth fluid channels are formed.

10. The heat exchanger module according to claim 5 , wherein the first refrigerant passage channel, the second refrigerant passage channel, the third refrigerant passage channel, the fourth refrigerant passage channel and the fifth refrigerant passage channel are each formed by stacking of stacking plates, wherein the stacking plates have openings and annular formations surrounding the openings, wherein the annular formations of adjacent stacking plates are connected sealed together to form a sealed channel as a refrigerant passage channel.

Assignees

• Mahle Int Gmbh

Inventors

• Feldkeller Timo
• Draenkow Andreas

Classifications

• F28D9/0093

  Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids · CPC title

• B60H1/00342

  of the liquid-liquid type · CPC title

• F25B2339/047

  Water-cooled condensers · CPC title

• B60H1/3233

  characterised by condensed liquid drainage means · CPC title

• F25B2339/044

  Condensers with an integrated receiver · CPC title