R744 (CO2) automobile air conditioning pipeline

appeared in the development of refrigerant. The use of these new refrigerant can not only reduce the greenhouse effect on the earth, but also reduce the damage of refrigerant to the ozone layer. At the same time, the daily maintenance cost of refrigerant in the use of vehicles should be taken into account. CO2 as a new refrigerant is an option.

Based on such a concept, Conditech Vehicle Fluid Systems Division and oEMS jointly developed an air conditioning pipeline using R744(CO2) as refrigerant, including rubber hose and contilock-R connector with a new structure developed. The new hose can withstand both high pressure and high temperature, and has ultra-low leakage performance up to 170 Bar in pressure and 180°C in high temperature. It should be known that no matter what kind of refrigerant medium is used, there will be leakage at the connection between pipes and functional parts, and the leakage of refrigerant will pollute the environment to a certain extent. In order to reduce the leakage of refrigerant in the whole cycle of vehicle use, Therefore, a set of contilock-R connector was developed and the corresponding patent was obtained, which can effectively ensure the decrease of the leakage amount of medium energy refrigerant during the use of vehicles.

The R744 (CO2) refrigerant air conditioning pipeline developed by Contac vehicle fluid system has been approved by relevant oems and has achieved mass production in Europe. The localization work in China is also in an orderly way. According to the current progress, the sample production will be completed by the end of 2020 and relevant tests will be carried out. It is expected to achieve mass production in 2021, which will provide high-performance R744(CO2) air conditioning pipeline for major domestic oems.

Market performance

At present, Conditech have signed an agreement with a German OEM for the development of CO2 air conditioning pipes for relevant models, and the OEM plans to apply R744(CO2) in large quantities on its full-sequence models.

Future Development Trend

With the increase of national attention to environmental protection, there have been a number of domestic oems to R744(C02) refrigerant technology research and development and reserve, will be in the appropriate time to switch to R744(CO2) refrigerant, then the demand for R744(CO2) will show explosive growth.