发明名称 |
Bearing air seal for vacuum cleaner motor |
摘要 |
A combination motor-fan unit for wet pick-up vacuum cleaner applications is provided with a flow of sealing air past the bearing located between the motor and the fan. The housing supporting the bearing is provided with a diffusing chamber on the fan side of the bearing and a restricted air flow path through the housing to the diffusing chamber to utilize the motor cooling air as a source for the bearing sealing air. A check valve is provided in the restricted air flow path.
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申请公布号 |
US4527960(A) |
申请公布日期 |
1985.07.09 |
申请号 |
US19840576667 |
申请日期 |
1984.02.03 |
申请人 |
GENERAL SIGNAL CORPORATION |
发明人 |
DESISTO, RICHARD E. |
分类号 |
F16C33/76;A47L5/22;F04D29/04;F04D29/056;F04D29/10;F04D29/70;(IPC1-7):F04B39/06 |
主分类号 |
F16C33/76 |
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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