Axial flow turbo-machine fan blade having shifted tip center of gravity axis
US6059532A · kind A · utility
64Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1998 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | May 20, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/324
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A high aspect ratio, low solidity fan blade of an axial flow air cycle machine has a local tip center of gravity axis that has been shifted ahead of an elastic axis. The center of gravity axis can be shifted by clipping the tip of the blade at the trailing edge, by undercutting a rear portion of the pressure surface, or by sweeping forward leading and trailing edges of the blade by about five degrees (without clipping or undercutting the blade).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.