HERMETIC SCROLL COMPRESSOR USING HELIUM

摘要

Conventionally, the pressure rise rate in both the compression chamber by the seal deterioration between compression chamber (compression-ray) This varies, the pressure difference between the compression chamber ( P ₁ ) is becomes large. Accordingly, internal leakage is large, large, internal compression engine, resulting in even larger compressor input. In addition, the volume efficiency in the suction process decreases and the helium gas flow rate is lowered. As a result, the performance of the compressor there is a problem that the degradation. So the present invention, will be to improve the performance of the compressor for the purpose. In order to achieve the above object, the present invention, the oil and the first pivot angle range of the outer compression chamber that communicates with the injection port for the pivot, the second pivot angle range that communicates with the compression chamber inside the pivot for the oil injection port, approximately the same A turning angle range is set for the opening of the port for the oil injection on a fixed gear groove bottom surface so that the scroll portion. ;