发明名称 |
CENTRIFUGAL HEAT PUMP WITH OVERLOAD PROTECTION |
摘要 |
A variable capacity air conditioning system for heat pump operation using small centrifugal compressors and including capacity reducing methods to prevent overloading when starting up the compressors, and including methods to remove the refrigerant liquid from the evaporator while the system is not in use, also to prevent overloading when restarting.
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申请公布号 |
US3668883(A) |
申请公布日期 |
1972.06.13 |
申请号 |
USD3668883 |
申请日期 |
1970.06.12 |
申请人 |
JOHN D. RUFF;PHILLIP R. WHEELER |
发明人 |
JOHN D. RUFF;PHILLIP R. WHEELER |
分类号 |
F24F3/00;F25B1/10;F25B5/00;F25B49/02;(IPC1-7):F25B1/00 |
主分类号 |
F24F3/00 |
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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