Refrigeration is an important industry that includes many specialised products, including rolling piston compressors. This text will cover the operation, advantages, disadvantages and maintenance of rolling piston compressors. Rotary piston compressor function and operation A rolling piston compressor is a type of reciprocating compressor used in refrigeration systems and heat pumps. Unlike other types of compressors such as the scroll compressor or reciprocating compressor, the rolling piston compressor, also called a rotary compressor, uses two rotating elements to draw in and compress the refrigerant. The rolling pistons rotate in a sealed housing, creating a continuous compression cycle. Rolling piston compressors can compress the refrigerant to low or medium condensing pressures and are therefore able to compress small amounts of gas in an energy-efficient manner. Advantages and disadvantages of rotary compressors While rolling piston compressors have some advantages, they also have some disadvantages. One of the main disadvantages is the higher purchase price compared to other types of compressors. Maintenance costs can also be higher, as rotary piston compressors can be more sensitive to dirt and contamination. In contrast, however, the rotary piston compressor has a longer service life, which can lead to savings in total cost of ownership.

Double rolling piston compressor

A further development of the rolling piston compressor is the double rolling piston compressor. As the name suggests, this compressor has two rolling pistons that rotate in opposite directions. This achieves a higher pressure and improves the efficiency. Again, the initial cost is higher than a conventional rolling piston compressor, but the savings in operating costs may well outweigh the higher cost. By using two rolling pistons rotating in opposite directions, a higher pressure is achieved. This means that the twin rolling piston compressor is able to compress more refrigerant than a conventional rolling piston compressor. The higher efficiency results in better efficiency and performance, which is particularly advantageous in applications with high cooling capacity requirements. Another advantage of the double rotary piston compressor is the improved stability during operation. The counter-rotation of the rollers ensures better alignment and greater stability in operation. This is particularly advantageous in applications with high loads and frequent operation.