发明名称 |
Hydraulic power unit for an elevator drive |
摘要 |
A vertically oriented hydraulic power unit for an elevator drive includes an outer tank for drive fluid and an inner tank for fluid used to submerge and cool a motor, the fluids being exchangeable to maintain temperature in the inner tank at or below a specified maximum temperature. Oil returning from an elevator piston is fed into the inner tank to keep the inner tank sufficiently cool.
|
申请公布号 |
US6499567(B2) |
申请公布日期 |
2002.12.31 |
申请号 |
US20010950375 |
申请日期 |
2001.09.10 |
申请人 |
OTIS ELEVATOR COMPANY |
发明人 |
FOSCHINI GIANLUCA;TOSCHI RENZO |
分类号 |
B66B5/02;B66B9/04;(IPC1-7):B66B9/04 |
主分类号 |
B66B5/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|