Device for storing refrigerant in a refrigerant circuit and method for operating the device

摘要

The invention relates to a device (1a, 1b, 1c, 1d, 1e, 1f) for storing refrigerant in a refrigerant circuit, in particular for an air conditioning system of a motor vehicle. The device (1a, 1b, 1c, 1d, 1e, 1f) has a housing (2) with a wall enclosing a volume with an inlet (3) for introducing a refrigerant / oil mixture and an outlet (4), one in Inside the housing (2) arranged refrigerant discharge line (5) with an inlet opening above a liquid level of the refrigerant for receiving gaseous refrigerant and a system for returning oil to a compressor with at least one below the liquid level of the refrigerant, in particular below a fill level of the Oil, through passage (6, 6-1, 6-2) formed in the refrigerant discharge line (5). In addition, at least one passage opening (6, 6-2) formed in the refrigerant-discharging line (5) is designed with an adjustable flow cross-section, which can be varied by means of a closure device (7, 7a, 7b, 7c, 7d, 7e, 7f) also relates to a method for operating the device.