| 摘要 |
A cooling element with a sorbent material ( 4 ) which in vacuo can sorb a vaporous working medium that evaporates from a fluid working medium in an evaporator ( 29 ) and with a shut-off means which, up to the moment at which the cooling process is initiated, prevents the working medium vapor from flowing into the sorbent material ( 4 ), with the sorbent material ( 4 ) being sealed into a sorbent-containing pouch ( 22 ) which comprises a multilayer sheeting material which in turn comprises at least one metallic layer or one metallized layer.
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