Low temperature regenerators for cryogenic coolers
AssigneeNorth American Philips Corporation
InventorMichael P. Goldowsky
Life of this patent
Estimating the term…
Abstract
A regenerator for a closed thermodynamic cycle cryogenic cooler is made of a vessel containing helium. The helium may be contained in, for example, hollow glass spheres or hollow metal tubing. The pressure of the helium in the vessel and the size of the regenerator are chosen to assure that the mass of helium in the regenerator exceeds the mass of helium in the working gas which passes through the regenerator in the operation of the cooler. Closed thermodynamic cycles in which the helium-containing regenerators can be used include the Stirling cycle and the Vuilleumier cycle.
Claims2
A regenerator, for a closed thermodynamic cycle cooler, comprising:
- a cylindrical container having two open ends;
- a first porous plate closing one end of the container;
- a second porous plate, slidably mounted in the cylindrical container, closing the second end of the container;
- a plurality of hollow glass spheres containing helium in the container between the porous plates;
- and
- means for compressing the glass spheres between the two porous plates.
Dependencies are inferred from the claim text.