| 发明名称 |
CRYOGENIC REFRIGERATOR |
| 摘要 |
<p>A method and apparatus for increasing the refrigeration capacity of a displacer-expander type cryogenic refrigerator pneumatically actuated by a rotary valve by increasing the number of ports of the rotary valve to increase reciprocating speed of the displacer without increasing speed of rotation of the valve.</p> |
| 申请公布号 |
DE3377736(D1) |
申请公布日期 |
1988.09.22 |
| 申请号 |
DE19833377736 |
申请日期 |
1983.06.03 |
| 申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
LONGSWORTH, RALPH CADY |
| 分类号 |
F25B9/14;(IPC1-7):F25B9/00 |
主分类号 |
F25B9/14 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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