Fan brake for removable module
US6422814B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Apr 13, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D27/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Fan brakes for decelerating blower impellers particularly for modular equipment enclosures are described. A module includes a blower having an impeller with a plurality of blades. The brake engages the impeller body or blades when the module is at least partially removed from the enclosure and disengages the impeller when the module is inserted into the enclosure. One brake includes an arm coupled to a braking surface. The arm applies the braking surface to the impeller when disengaged by a cam and retracts the braking surface from the impeller when engaged by the cam. A solenoid may be used in lieu of a cam for directly or indirectly applying the braking surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.