Fan apparatus with lift fan and louvered cover
US12129024B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 17, 2021 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Jan 26, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K1/002
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present disclosure provides systems, apparatuses, and methods relating to a fan apparatus including a lift fan mounted in a duct and a cover for the lift fan. In some examples, a fan apparatus has a louvered cover including louvers having different chord lengths and/or different projection distances relative to one another when the louvers are in an intermediate (transitional) position. In some examples, a fan apparatus includes a louver actuation assembly configured to move louvers of the fan apparatus rotationally and translationally between open and closed positions. In some examples, a fan apparatus includes a fluid-actuated sealing assembly configured to form a seal between a sealing member and a cover, such as a louvered cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.