一、前言在极低温往复式小型回热式气体制冷机中都采用了一只长排出器(膨胀活塞),其活塞密封处于室温,而冷头远离室温。窜梭热交换或称窜梭损失就是由这种排出器的往复运动引起的损失。降低窜梭损失的方 I. INTRODUCTION In the extremely low temperature reciprocating small regenerative gas chiller are used a long ejector (expansion piston), the piston seal at room temperature, while the cold head away from room temperature. The channeling shuttle heat exchange or shuttle channel loss is the loss caused by the reciprocating motion of such an ejector. Reduce the shuttle lost shuttle party