发明名称 |
POWER UNIT FOR HYDRAULIC ELEVATOR |
摘要 |
A hydraulic elevator power unit has an oiltight type detector for detecting the number of revolutions of an electric motor. A leak oil hole formed in a lower end portion of the detector is connected to a leak oil tank. The operating oil entering the detector is discharged through the leak oil hole, thereby preventing the detecting portion from being immersed in the operating oil.
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申请公布号 |
US5078236(A) |
申请公布日期 |
1992.01.07 |
申请号 |
US19900588740 |
申请日期 |
1990.09.27 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
SHIMOAKI, MOTOO;KAMIYA, YOSHIO;TAKIGAWA, YUKIHIRO;USIDA, HIROSHI;MIYAKE, TATSURO |
分类号 |
B66B9/04;B66B1/24;B66B1/26 |
主分类号 |
B66B9/04 |
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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