发明名称 |
Pulse tube refrigerator |
摘要 |
In a pulse tube refrigerator the refrigeration efficiency has been improved by reducing the on-off valve loss. A second space 47 in a cylinder member 41 is connected with a second high pressure on-off valve 23 and a second low pressure on-off valve 24. A buffer side on-off valve 25 is provided between the buffer space (a buffer tank 50) and the second space 47. By opening the buffer side on-off valve 25 before the second high pressure on-off valve 23 or the second low pressure on-off valve 24 is open, the pressure in the second space 47 can be the intermediate pressure. Since the pressure difference when the valves are open is decreased, the on-off valve loss can be decreased.
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申请公布号 |
US2001032469(A1) |
申请公布日期 |
2001.10.25 |
申请号 |
US20010822354 |
申请日期 |
2001.04.02 |
申请人 |
AISIN SEIKI KABUSHIKI KAISHA |
发明人 |
ZHU SHAOWEI;NOGAWA MASAHUMI;KAWANO SHIN;INOUE TATSUO |
分类号 |
F25B9/00;F25B9/14;(IPC1-7):F25B9/00;F02G1/04;F01B29/10 |
主分类号 |
F25B9/00 |
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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