Method for determining the total pressure distribution across a fan entry plane
US8105015B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2009 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2220/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for determining total pressure distribution across a fan entry plane of a fan situated within a fan casing provided with struts which are positioned upstream of the fan, with respect to the normal air flow direction through the fan. The method comprises the steps of measuring static pressure at first measurement points on the leading edges of at least some of the struts; deriving local angularity values at each measurement point from the respective static pressure measurements; deriving, from the local angularity values, the total pressure loss at first derived points in the fan entry plane which correspond to the first measurement points; measuring static pressure at second measurement points around the intersection between the fan entry plane and the fan casing; deriving, from the static pressure measurements at the second measurement points, the total pressure loss at each second measurement point, and interpolating between total pressure loss values at the first derived points and the second measurement points to determine total pressure distribution across the fan entry plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.