Patent ID: 6419480
Filing Date: 2002-07-16
Classification: F23C,F23D

Abstract:
An apparatus for burning combustible fuel at a low emission of NOx and CO, comprising:an elongate housing forming a combustion chamber having a side wall mounted substantially concentrically of a predetermined axis, a first wall normal to the axis and forming a first opening therein disposed concentrically of the axis for the emission of hot exhaust gas and a second wall disposed substantially parallel to the first wall and forming a second opening therein concentrically of the axis; an elongate hollow member comprising a third wall perforated throughout its surface mounted concentrically of the axis within the combustion chamber at a predetermined spacing from the side wall and defining a closed end at a predetermined distance from the first wall and an open end disposed in the second opening; a first pipe connected to the open end for feeding air through the perforations in a continuous graduation; and a second pipe disposed around the first pipe and defining therewith within the second wall an annular orifice for feeding the fuel in a predetermined direction into the combustion chamber between the side wall and the third wall for mingling and burning with the air from the perforations.