Wood fuel combustion system
OwnerTheodore J. Johnsoninventor
Life of this patent
Estimating the term…
Abstract
A furnace adapted to burn wood chips and wood particles and including an inner cylinder adapted to be positioned in horizontal relation and including a primary combustion area. A funnel assembly is provided for supporting a quantity of wood particles and for funneling the wood particles into the primary combustion area of the inner cylinder. A second cylinder is also provided, the second cylinder having a length greater than that of the inner cylinder and having one end which surrounds the inner cylinder such that the inner cylinder and the second cylinder define an air space therebetween. The other end of the second cylinder defines a secondary combustion area where the combustion gases from the primary combustion area are mixed with secondary air.
Claims21
A furnace adapted to burn wood chips and wood particles, the furnace comprising
- an inner cylinder adapted to be positioned in horizontal relation and including opposite ends, and said inner cylinder housing a primary combustion area wherein wood particles are burned, one of said opposite ends comprising an air intake end,
- means for supporting a quantity of wood particles and for funneling wood particles into said primary combustion area, said means for supporting including a container adapted to house a quantity of wood particles, said container including a lower end having an opening adapted to deposit wood particles into said primary combusion area of said inner cylinder,
- a second cylinder including opposite ends, one of said ends surrounding said inner cylinder, said inner cylinder and said one of said ends of said second cylinder defining an air space therebetween, and the other of said opposite ends of said second cylinder defining a secondary combustion chamber,
- means for separating an upper portion of said air space from a lower portion of said air space, said means for separating including a first plate extending between one side of said inner cylinder to said second cylinder and a second plate extending between an opposite side of said inner cylinder and said second cylinder, one of said lower portion of said air space and said upper portion of said air space defining an air flow passage providing for air flow to said secondary combusion chamber.
A furnace adapted to burn wood chips and wood particles, the furnace comprising
- an inner cylinder adapted to be positioned in horizontal relation and including opposite ends, and said inner cylinder housing a primary combustion area wherein wood particles are burned, one of said opposite ends comprising an air intake end,
- means for supporting a quantity of wood particles and for funneling wood particles into said primary combustion area, said means for supporting including a container adapted to house a quantity of wood particles said container including a lower end having an opening adapted to deposit wood particles into said primary combustion area of said inner cylinder,
- a second cylinder including opposite ends, one of said ends surrounding said inner cylinder, said inner cylinder and said one of said ends of said second cylinder defining an air space therebetween, and the other of said opposite ends of said second cylinder defining a secondary combustion chamber, said air space defining an air flow passage for flow of air from adjacent said one of said opposite ends of said inner cylinder and along the length of said inner cylinder into said secondary combustion chamber.
A combustion unit adapted to burn wood chips and wood particles, the combustion unit comprising
- an inner housing including opposite ends, and said inner housing including a primary combustion area wherein wood particles are burned, one of said opposite ends comprising an air intake end,
- means for supporting a quantity of wood particles and for funneling wood particles into said primary combustion area, said means for supporting including container means adapted to house a quantity of wood particles, said container means including a lower end having an opening adapted to deposit wood particles into said primary combustion area of said inner cylinder,
- a second housing including opposite ends, one of said ends surrounding said inner housing, said inner housing and said one of said ends of said second housing defining an air space therebetween, and the other of said opposite ends of said second housing defining a secondary combustion chamber,
- means for separating an upper portion of said air space from a lower portion of said air space, one of said upper portion of said air space and said lower portion of said air space providing an air flow passage to said secondary combustion chamber, said air flow in said air flow passage providing for air flow in the direction from said one of said ends of said second housing toward said other of said ends of said second housing into said secondary combustion chamber.
Dependencies are inferred from the claim text.