ARRANGEMENT FOR INFLUENCING THE SPEED OF A COMPRESSOR OF A REFRIGERATING SYSTEM

摘要

The V-belt drive (30, 32) between a drive engine (M) and the compressor (10) is constructed as V-belt drive of infinitely variable transmission ratio having at least one cone pulley pair (20). Connected to the evaporator (14) is a pressure line (24) via which the pressure from the evaporator acts directly on an actuating drive (22) associated with the cone pulley pair (20), whereby said drive adjusts the cone pulleys of the cone pulley pair proportionally to changes of the pressure and thus adjusts the speed of the compressor (10) so that the pressure in the evaporator (14) is kept constant. The arranged is suitable in particular for use in the refrigerating system of motor vehicles, for example for refrigerating and air-conditioning purposes.