Fan rotor design for coincidence avoidance
US7811053B2 · kind B2 · utility
9Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Mar 3, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/328
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan rotor capable of avoiding coincidence will include a fan hub comprising one or more slots each designed to receive a fan blade; and one or more fan blades disposed within the slots. One or more slots will comprise an RZ′ baseline and have one or more second fan blades disposed therein while another set of slots will have an RZ baseline having one or more first fan blades disposed therein. The tips of the second fan blades will be positioned at a distance farther from the fan hub than the tips of the first fan blades disposed, which when implemented in a turbofan engine will avoid coincidence occurrences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.