无油喷射单螺杆压缩机基本上是一种SSC，在这种SSC中，可以使用液体制冷剂喷射来冷却压缩机，而不是用油。尽管只有在间隙中存在液体制冷剂时，密封效果可能比注油时小，但通过最小化间隙，可以令人满意地减少泄漏损失，因为通过液体制冷剂的冷却作用，压缩机温度始终处于或接近饱和状态。此外，为了提高系统性能的潜力，将省煤器循环作为标准，将离心分离器“离心省煤器”从压缩机主轴驱动到压缩机中。 本文介绍了新的无注采油模型的性能。这些压缩机的性能将使其能够与传统的往复式和喷油螺杆压缩机竞争。单位:SICitation:研讨会，ASHRAE交易，1986年，第92卷，pt。1B，旧金山

An Oil injection-free Single Screw Compressor is basically an SSC in which liquid refrigerant injection can be employed for cooling the compressor instead of oil.Though only with liquid refrigerant present in the clearance the sealing effect may be less than with oil injection, the leakage losses can be reduced satisfactorily by means of minimizing the clearance gaps because the compressor temperature is always at or close to saturation condition by cooling effect of liquid refrigerant.Additionally, to improve the potential for system performance an economizer cycle is adopted as standard by incorporating into the compressor a centrifugal separator "centrifugal economizer" driven from the compressor main shaft.This paper presents the performance of the new Oil Injection-Free production model. The performance of these compressors will enable them to compete with conventional reciprocating and oil-injected screw compressors.Units: SI