Scroll compressor and method for commissioning a refrigeration system with such a scroll compressor

摘要

The invention relates to a scroll compressor (1) having a low pressure chamber (1.1), a high pressure chamber (1.3), a stationary scroll, a drive shaft (2) connected to an orbiting scroll, a back pressure chamber (1.2), a high pressure chamber (1.3). with the counter-pressure chamber (1.2) connecting the throttle opening (4), and a low-pressure chamber (1.1) with the counter-pressure chamber (1.2) connecting the first valve member (V1). According to the invention, a second valve element (V2) connects the counter-pressure chamber (1.2) with the low-pressure chamber (1.1), and for carrying out a filling of the scroll compressor (1) with refrigerant, the second valve element (V2) is at a PS) smaller back pressure (Pm) is a pressure equalization to a static pressure. An alternative solution provides that by means of a arranged on the drive shaft elastic return unit (6) after a filling process, the shifted from an initial position in the direction of the back pressure chamber (1.2) drive shaft is moved back to the starting position. A further alternative solution provides that the throttle opening (4) is designed as a controllable valve member (4.1) and, for filling the scroll compressor (1) with refrigerant, this valve member (4.1) is controlled to its maximum opening cross-section. Furthermore, the invention relates to a method for starting up a refrigeration system with the scroll compressor according to the invention.