Gleitringdichtung

摘要

The invention relates to a sliding ring seal for sealing the motor shaft (4) of a CO2-refrigeration compressor in relation to an air conditioning compressor housing (1) containing a CO2-oil mixture under very high pressure. The sliding ring seal has two sliding rings (5, 7) with interacting sealing faces (9, 10) which form a sealing slit between them during operation. Both sliding rings (5, 7) are made of a sintered hard material and are characterized by particular compositions, mechanical properties and structural dimensions.