Refrigerant compressor arrangement, method for operating a refrigerant compressor arrangement and motor vehicle

摘要

A refrigerant compressor arrangement (10) comprises a compressor unit (20) for compressing a refrigerant, which is coupled to a compressor inlet (21) and a compressor outlet (22), and a drive shaft (11) for connection to a drive unit (40), which are used to operate the compressor unit (20) is mechanically coupled to it. The refrigerant compressor arrangement (10) also has a shaft seal (12) for sealing a compression area (23), which is assigned to the compressor unit (20), against a drive area (43), which is assigned to the drive unit (40). The shaft seal (12) is arranged on the drive shaft (11) and surrounds it radially with respect to a longitudinal axis (L) of the drive shaft (11). The refrigerant compressor arrangement (10) also has a refrigerant guide system (30), which is fluidly coupled to the compressor inlet (21) and to the compressor outlet (22) and forms a refrigerant circuit, with part of the shaft seal (12) within the refrigerant circuit between the fluid Compressor inlet (21) and the compressor unit (20) is arranged.