Electric motor muffler
US6680551B2 · kind B2 · utility
16Cited by
36References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2001 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/207
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A muffler is incorporated into an electric motor housing to increase air flow across the motor and to reduce noise escaping from the housing. The muffler includes a cone adapted to be mounted adjacent the exhaust side of the motor fan. The muffler further includes an exhaust passageway comprising at least 270° in turns before final exhaustion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.