Patent ID: 8376733
Filing Date: 2013-02-19
Classification: F24H,Y10T

Abstract:
1. A gas burner comprising first and second spaced parallel burner plates defining a shallow chamber therebetween, each burner plate having a plurality of spaced apart extended openings therethrough defined by respective short tubular collars projecting therefrom with each of the tubular collars of the first plate being aligned with and directed toward and in confronting relation to a respective one of the tubular collars of the second plate such that annular gaps are defined between adjacent end portions of the tubular collars of the first and second plates; a conduit to supply gaseous fuel into said shallow chamber defined between said parallel plates such that, during use, the fuel passes through said annular gaps; a burner blower arranged to supply a flow of combustion air in a direction toward said plates such that the combustion air passes downstream firstly through the tubular collars of the first burner plate to mix with the gaseous fuel passing through said annular gaps to provide a combustible fuel-air mixture and thence through the tubular collars of the second plate, wherein the tubular collars of the first burner plate define flow passages of smaller diameter than those defined by the tubular collars of the second plate thereby creating a venturi-like flow action as the combustion air passes through the aligned tubular collars and thus promoting thorough mixing of the air and the fuel being supplied via said annular gaps.