Extended venturi fan ring
US7481619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2005 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Aug 10, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F7/065
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A high efficiency, low-noise fan ring for use with a heat exchanger having an annular fan ring body attached to a coaxial mounting ring. The fan ring body extends in a substantially perpendicular direction from an inner periphery of the mounting ring. The annular body has a circumferential periphery profile defined by a plane coincident the center axis and an inner surface of the fan ring body. The periphery profile includes a transition portion and a curved portion. The transition portion extends in a substantially perpendicular direction from the mounting ring and attaches to an end of the curved portion. In order to reduce noise and increase uniformity of airflow, the length of the curved portion of the periphery profile is sufficient long to reduce recirculation of air entering the fan ring body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.