초록 ▼

A device for transferring helium between rotating and non-rotating members includes first and second transfer reeds and a cylindrical sleeve. The cylindrical sleeve is provided between the first and second reeds and extends substantially throughout the region of axial overlap of the reeds. One of th

A device for transferring helium between rotating and non-rotating members includes first and second transfer reeds and a cylindrical sleeve. The cylindrical sleeve is provided between the first and second reeds and extends substantially throughout the region of axial overlap of the reeds. One of the reeds rotates with the rotating member while the other reed is fixed. Third and fourth coaxial transfer reeds may be provided for the transfer of gaseous helium. The third and fourth reeds concentrically surround the first and second reeds with one of the reeds rotating and the other reed being fixed. Cylindrical sleeve members are provided between adjacent reeds with the sleeve members all rotating with the rotating member. The sleeve members are connected to one another at opposite end of the intermediate sleeve member. Guide means may be provided to cancel a component of rotation of the gaseous helium. A bayonet fixing device releasably attaches the cylindrical sleeve to the rotating member.

대표청구항 ▼

A device for the transfer of helium between rotating and non-rotating members, comprising: first and second coaxial transfer reeds for the transfer of liquid helium, the first transfer reed being adapted to rotate with the rotating member, the second transfer reed being adapted to be fixed with resp

A device for the transfer of helium between rotating and non-rotating members, comprising: first and second coaxial transfer reeds for the transfer of liquid helium, the first transfer reed being adapted to rotate with the rotating member, the second transfer reed being adapted to be fixed with respect to the non-rotating member, one of the transfer reeds being partially engaged in the other transfer reed with a slight radial clearance being provided in the region of axial overlap of the first and second coaxial transfer reeds; and a cylindrical sleeve made from a softer material than the material of the first and second coaxial transfer reeds and mounted for rotation with the first rotating transfer reed, said cylindrical sleeve having first and second ends and extending axially in the slight radial clearance provided in the region of axial overlap of the first and second coaxial transfer reeds throughout substantially the entire region of axial overlap, whereby said cylindrical sleeve has a tendency to wear and become perforated before said first and second transfer reeds.