| 摘要 |
FIELD: cryogenic engineering. SUBSTANCE: invention is designed for maintaining vacuum in closed spaces by absorbing molecules of gases. Proposed pump contains reservoir with neck in outer envelope, multiple-layer vacuum thermal insulation, screen and absorbent secured on inner wall of reservoir. Radiation clearance is left in layers of thermal insulation. Screen is placed in this clearance being secured on neck of reservoir. EFFECT: improved evacuation characteristics. 1 dwg
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