Fuel atomizer and apparatus and method for reducing NOx
US5622489A · kind A · utility
Inventor
Key dates
| Filing date | Apr 13, 1995 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Apr 13, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2201/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A fuel atomizer using a spray plate, for a highly spun liquid fuel is described for generating spaced apart fuel rich zones separated by a fuel lean zone by forming a slot in an outer domed surface of the spray plate. The shape of the domed surface is selected so that the spinning fuel, which is also under a high pressure, is permitted to preferentially expand in the direction of the ends of the slot while increasingly spilling over a wall bounding the slot. With a fuel atomizer in accordance with the invention substantial reductions in the generation of thermal NOx can be achieved in boilers when the fuel atomizer is placed within a flame stabilizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.