没有可靠的密封件,现代的低温透平发电机以及具有中心力场的低温流体的实验装置就不能运转。因为它不仅保证旋转运动传入高真空室,而且保证冷却剂(氮、氢、氦)排出试验区。高的圆周速度,低的温度和真空限制了一些标准密封件的应用,或者使它们实际上不 Without reliable seals, modern cryogenic turbine generators and experimental devices with cryogenic fluids with a central force field will not operate. Because it not only ensures that the rotary motion is introduced into the high vacuum chamber, it also ensures that the coolant (nitrogen, hydrogen, helium) exits the test area. High circumferential speeds, low temperatures and vacuum limit the use of some standard seals or make them virtually devoid