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Patent Searching and Data


Title:
EXHAUST FACE STRUCTURE OF CRYO ADSORPTION PUMP
Document Type and Number:
Japanese Patent JPS61215470
Kind Code:
A
Abstract:

PURPOSE: To prevent droppage of adsorbing material by fixing a planar holding member having many openings for providing a gap against the metal face to be cooled cryogenically through refrigerant through spacer members and holding the adsorbing material between the metal face and the holding member.

CONSTITUTION: Frame-like metal spacer members 14 are secured to the cryo face 5 of a metallic sump 12 for storing the refrigerant 11. A metal mesh 16 is stretched over the spacer members 14 while granular adsorbing material 6 is placed in the gap between the metal mesh 6 and the cryo face 5. The mesh of said metal mesh 16 is set smaller than the size of the adsorbing material 6 while the height of the spacer member 14 is set same or slightly smaller than the size of the adsorbing material 6 thus to hold the adsorbing material 6 between the cryo face 5 and the metal mesh 16 while contacting tightly against the cryo face 5. Consequently, the adsorbing material 6 can be held reliably without employing organic adhesive which will degrade upon irradiation of radiation.


Inventors:
GOSHIMA MIKIHIKO
Application Number:
JP1985000058072
Publication Date:
September 25, 1986
Filing Date:
March 22, 1985
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
F04B37/08; B01D8/00; (IPC1-7): B01D8/00; F04B37/08