Heat exchanger and integrated air-conditioning assembly including such exchanger

A technology of heat exchangers and integrated components, which is applied in the field of heat exchangers and can solve problems such as complex inner cores

Active Publication Date: 2011-04-27
VALEO SYST THERMIQUES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, this solution requires the use of a relatively complex inner core

Method used

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  • Heat exchanger and integrated air-conditioning assembly including such exchanger
  • Heat exchanger and integrated air-conditioning assembly including such exchanger
  • Heat exchanger and integrated air-conditioning assembly including such exchanger

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0032] figure 1 An air conditioning system 10 is shown operating with a coolant, in particular a supercritical coolant such as carbon dioxide (CO 2 ).

[0033] The air conditioning system 10 may be installed in a motor vehicle to cool the air inside the vehicle according to the needs of passengers.

[0034] This air conditioning system operating according to a supercritical coolant cycle mainly comprises a compressor 14 , a gas cooler 11 associated with a fan 16 , an internal heat exchanger 9 , an expansion chamber 12 , an evaporator 13 and an accumulator 17 .

[0035] Compressor 14 compresses the coolant to a discharge pressure, referred to as high pressure. The fluid then flows through a gas cooler 11 where it is cooled in the gas phase at high pressure. During this cooling process, the fluid is not condensed, unlike air conditioning systems that use fluorinated components such as coolants.

[0036] The fluid thus cooled by the gas cooler 11 then flows in the first branc...

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PUM

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Abstract

The invention relates to a heat-exchanger for an air-conditioning circuit that includes a first pipe (110) defining a path for a flow of fluid, the first pipe being spirally wound about a so-called exchanger axis (A). According to the invention, the heat exchanger (9) further includes at least one second pipe (120a, 120b) defining a path for a flow of a second fluid, said second pipe being provided against a surface of the first pipe (110) and spirally wound together with said first pipe (110) about said axis (A). The invention can be used in air-conditioning circuits operating with a super-critical coolant, in particular carbon dioxide (CO2).

Description

technical field [0001] The invention relates to heat exchangers for air conditioning systems. It also relates to the use of said heat exchanger as an internal exchanger of an air-conditioning system, an integrated assembly for an air-conditioning system operated with a coolant, and an air-conditioning system comprising such an integrated assembly. [0002] The invention is particularly advantageously applied in the field of air conditioning systems operating with supercritical coolants such as carbon dioxide (CO 2 ). Background technique [0003] Air conditioning systems of this type generally include a compressor, a gas cooler, an internal exchanger, an expansion chamber and an accumulator. The coolant, which has been made high pressure by the compressor, is sent to the gas cooler to be cooled. The high pressure fluid from the cooler then flows in the first branch of the internal exchanger before being expanded through the expansion chamber. The low pressure fluid then ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/04F28D7/00F25B40/00
CPCF28D7/04F25B2309/061F28D7/0033F25B40/00F25B2500/18F28F9/0243
Inventor 奥雷利·贝伦凡特吉米·莱米莱昂内尔·雷诺特弗雷德里克·伯纳德
Owner VALEO SYST THERMIQUES
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