发明名称 |
Lubricant composition for ammonia based refrigerants with good seal performance |
摘要 |
A problem with refrigeration systems using ammonia as the refrigerant and hydrocarbon lubricants is that the seals/gaskets of the systems have a tendency to harden and shrink. This can cause leakage of the refrigerant and eventually require disassembly of the equipment and replacement of the seals. The addition of a small amount polyether having an aromatic fragment of 6-18 carbon atoms or an aliphatic fragment of 10-22 carbon atoms can soften the seals and partially re-swell the seals solving the leakage problem and avoiding expensive maintenance costs. Alternatively a polyether of 1,2-butylene oxide which is more oil soluble than most other polyethers with a smaller Z group e.g. derived from alkanols of 1 to 9 carbon would be effective at reducing hardening and shrinkage.
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申请公布号 |
US2003104951(A1) |
申请公布日期 |
2003.06.05 |
申请号 |
US20020220460 |
申请日期 |
2002.08.29 |
申请人 |
RAJEWSKI THOMAS;TOLFA JOHN C;LI HSINHENG |
发明人 |
RAJEWSKI THOMAS;TOLFA JOHN C;LI HSINHENG |
分类号 |
C10M145/36;C10M169/04;C10M171/00;(IPC1-7):C10M101/00 |
主分类号 |
C10M145/36 |
代理机构 |
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主权项 |
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地址 |
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