Aerodynamic sound decreasing apparatus
US10330339B2 · kind B2 · utility
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2References
5Claims
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Assignee
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Key dates
| Filing date | May 19, 2017 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Sep 23, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/006
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Multiple projections are provided at a flow-change portion, which corresponds to such a portion of a wall surface of an A/C casing, at which velocity gradient of air current becomes larger in an area adjacent to the wall surface, in order to decrease aerodynamic sound generated by disturbed air current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.