Constant velocity turbine and stator assemblies
US6921030B2 · kind B2 · utility
29Cited by
10References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2002 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Jun 8, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7837
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A rotary sprinkler system for both above-the ground and pop-up rotary sprinkler systems that controls the rate of nozzle rotation is disclosed. To maintain a relatively constant and controlled nozzle rotation, one or more chamfered spokes are included on the turbine of the sprinkler system. This turbine configuration together with a stator assembly that regulates fluid flow to the turbine control nozzle rotation despite variations in fluid flow. In particular, the chamfered spokes counteract the spin of the turbine in direct relation to the amount of water that bypasses the driving blades of the turbine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.