Variable span splitter blade
US9976422B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2013 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Apr 6, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The presently disclosed embodiments utilize flow from a higher-energy portion of flow within the impeller flow path and inject it into the lower-energy portion of the flow path to re-energize the flow, delaying the onset of, or minimizing, large (and inefficient, entropy-generating) re-circulation zones in the flow field. By making a spanwise cut along the chord length of the splitter blade (variable blade clearance from leading edge to trailing edge), additional secondary flow occurs within the flow passages as the higher pressure flow on the pressure side of the blade can now spill over into the low-pressure suction side of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.