Variable orifice for particulate coal conduit
US8251088B2 · kind B2 · utility
8Cited by
13References
4Claims
0Family size
Inventor
Key dates
| Filing date | Sep 1, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Feb 3, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87547
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A simplified variable orifice for a conduit furnishing a stream of particulate coal to a burner for a turbine in an electrical utility plant. Two plates are installed across the conduit, one of them being fixed and the other being variable in angular position relative to the first. A lockable mechanism is provided externally of the conduit to manually adjust the degree of blocking and to indicate the position of the movable plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.