Pellet fuel burning device
US6223737A · kind A · utility
Inventor
Key dates
| Filing date | Sep 27, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Sep 27, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23B2700/013
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A pellet fuel burner, such as a cooking grill, has a fire box with a generally open top plane. A pellet burner unit is disposed in the fire box below the cooking surface. A pellet feeding device opens into the fire box and is disposed so as to feed pellets into the burner unit. A pressure box has an inlet supplied with combustion air at a positive pressure. A plurality of outlets are provided in the pressure box and disposed so as to create a turbulent combustion air flow in the pellet burner unit. The outlets may include a first outlet disposed above the burner unit and a second outlet disposed below the burner unit. The turbulent combustion air flow and supply of pellets, particularly corn kernels from the pellet feeding device allow for a continuous sustained combustion of the fuel in the pellet burner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.