Noise reduced centrifugal blower
US5336046A · kind A · utility
37Cited by
5References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 7, 1992 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Oct 7, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/663
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blower of an automotive air conditioner has a lower casing a part of which is formed is a plastic housing for a motor and a porous member in the form of a flat plate disposed at a position where the plastic housing and an upper casing of the blower abut against each other. An air layer is defined between the flat-plate porous member and the lower casing to add a muffling function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.