Grate with self ignitor for burning pellet fuel
US5617841A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24B13/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Stoves fueled by biomass pellets are provided with a grate assembly that supports the pellets for combustion and directs combustion gas into the fire. The grate assembly includes a passive grate of equally or unequally spaced rods. The design of the rods serves to prevent the ash and clinkers from accumulating on the grate in mounts that could reduce the flow of combustion gas into the fire. In one embodiment, an ignitor rod is provided as one of the spaced rods in the grate assembly. By applying power to the ignitor rod, the rod is raised to a sufficient temperature to ignite unburned biomass pellets in proximity to the ignitor rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.