Ventilation fan having air bearing system
US10371156B2 · kind B2 · utility
4Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Mar 18, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ventilation fan includes a shaft assembly, a rotor, a motor housing, and a bearing housing. The shaft assembly defines a first port and a second port. The rotor has a rotor first portion disposed about a first portion of the shaft assembly and a rotor second portion that extends from the rotor first portion. The rotor first portion defines a rotor port. The motor housing is disposed about a second portion of the shaft assembly. The motor housing defines a housing port. The bearing housing is operatively connected to the motor housing. The bearing housing is disposed about a third portion of the shaft assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.