US 4,419,942 A · Stove

Abstract

A stove in which the fuel is combusted within a primary combustion zone and the products of combustion are transported into a tertiary combustion zone surrounded by a container of water. A bundle of secondary combustion tubes connect the primary and tertiary combustion zones. The tertiary combustion and separation chamber termed a posatron completes the combustion and separates a portion of the creosote and other condensable materials from the combustion gases. The combustion gases are then conducted through small pipes immersed in the water bath to cool the combustion gases and complete the condensation of water, creosote and other unburned constituents. The water and creosote mixture flows into a creosote collection chamber and the products of combustion are either recycled to the combustion chamber or exhaused to the atmosphere. Heat is removed from the system by recirculating air or by hot water circulation.

Claims14

Dependent claims

A stove for the combustion of wood, coal or other fuels comprising:

a primary combustion zone having a fuel inlet, an air inlet and a combustion gas outlet;
a secondary combustion zone comprising an elongated bundle of tubes extending at least a portion of their length into said primary combustion zone and adapted to conduct combustion gases from said primary combustion zone and continue the combustion thereof;
a tertiary combustion and condensation zone communicating with said secondary combustion zone, said tertiary combustion and condensation zone being surrounded by a heat exchange medium to remove heat therefrom and condense water and other condensables while cooling said combustion gases;
means to conduct combustion gases from said tertiary combustion and condensation zone through conduits in heat exchange contact with said heat exchange medium and then to the atmosphere after removal of heat therefrom;
and,
means to conduct said water and other condensable from said tertiary combustion and condensation chamber into a collection vessel.

3 more elements

Dependencies are inferred from the claim text.

Stove

Life of this patent

Stove

Life of this patent

Abstract

Claims14