Automobile air-conditioning unit has compressor high pressure line provided with cooling medium feedback line connected to coupling line within compressor for reducing cooling medium losses by permeation

摘要

The air-conditioning unit has a compressor (1) for compression of a cooling medium supplied to the compressor via a low pressure line (4) and transported from the compressor via a high pressure line (6), the part of the high pressure line adjacent the compressor provided with a cooling medium feedback channel (16), coupled to a coupling line (19) within the compressor, with its exit adjacent the outlet of the low pressure line.