Variable displacement compressors typically utilize which type of compressor technology?

Variable displacement compressors primarily employ axial compressor technology. This type of technology is designed to vary the amount of airflow according to demand, optimizing performance and efficiency. In an axial compressor, the compressor blades are oriented in a manner that allows them to adjust their angle, effectively changing the volume of air being compressed. This capability is essential for applications where load changes frequently, as it enhances fuel efficiency and reduces energy consumption.

Centrifugal and rotary compressors have different mechanisms for air compression that do not typically include the ability to vary displacement on demand, making them less suited for variable displacement applications. Scroll compressors, while efficient for certain applications, also lack the variable displacement feature that is characteristic of axial technology. Thus, axial compressors are the correct choice for variable displacement systems in many heating and air conditioning applications.