发明名称 |
Scroll fluid machine having a communication passage between an inner periphery of lip seal and an outer periphery of drive shaft or ring |
摘要 |
A scroll fluid machine with ensured reliability of an oil seal and a bearing even in a compressor operation at high rpm and high load is provided, which includes: a fixed scroll; an orbiting scroll facing the fixed scroll and having a boss provided on a face opposite to the fixed scroll; a drive shaft having a leading end mounted to the boss; an orbiting bearing supporting the drive shaft in connection with the orbiting scroll; and a seal member placed between the boss and the drive shaft to seal against a lubricant supplied to the orbiting bearing. The seal member has an oil lip producing action of moving the lubricant toward the orbiting bearing by rotation of the drive shaft. A communication passage is provided in the oil lip for communication between a space between the orbiting bearing and the seal member and a space outside the boss. |
申请公布号 |
US8647085(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US201113176894 |
申请日期 |
2011.07.06 |
申请人 |
IWANO KIMINORI;SAKAMOTO SUSUMU;KOBAYASHI YOSHIO;TASHIRO KOICHI;HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. |
发明人 |
IWANO KIMINORI;SAKAMOTO SUSUMU;KOBAYASHI YOSHIO;TASHIRO KOICHI |
分类号 |
F03C4/00;F04C2/00;F04C18/00 |
主分类号 |
F03C4/00 |
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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