Classification of automotive air conditioning pipelines

The classification of automotive air conditioning pipelines can be done from multiple perspectives, and the following are some common classification methods:

Classified by material:

Metal pipes: such as copper pipes, aluminum pipes, etc., have good thermal conductivity and corrosion resistance, and are usually used in high-pressure parts to withstand high refrigerant pressure.

Rubber hose: such as air conditioning hose, used to connect different components, has a certain degree of flexibility, and can adapt to the complex layout inside the car.

Plastic pipes: Some modern cars may use plastic pipes because they are lighter, cheaper, and easier to process and install.

Classified by pressure:

High pressure pipe: The pipeline connecting the compressor and condenser, which bears high refrigerant pressure.

Low pressure pipe: The pipeline connecting the evaporator and other components, usually bearing lower refrigerant pressure.

Classified by refrigerant state:

Gas tube: a pipeline used to transport gaseous refrigerant.

Liquid tube: a pipeline used to transport liquid refrigerant.

Classified by function:

Condenser inlet and outlet pipes: used to cool refrigerant, usually connected to the engine's cooling system.

Evaporator inlet and outlet pipes: used to absorb heat from the car in the evaporator and achieve refrigeration effect.

Expansion valve (or throttle valve) inlet and outlet pipes: used to control the flow and pressure of refrigerant, and regulate the refrigeration effect.

Classified by location:

Engine compartment piping: This section of piping is usually exposed and needs to withstand high temperatures and harsh environmental conditions.

Cabin interior piping: This part of the piping is usually hidden inside the car and needs to consider the spatial layout and passenger comfort.

In practical applications, automotive air conditioning pipelines are often a combination of multiple classification methods. For example, a metal high-pressure pipe may be responsible for simultaneously transporting gaseous refrigerant and connecting the compressor and condenser. Therefore, when designing and installing automotive air conditioning pipelines, it is necessary to comprehensively consider multiple factors to ensure the reliability, efficiency, and safety of the pipelines.