Patent ID: 7172413
Filing Date: 2007-02-06
Classification: D06F,F23D

Abstract:
1. A laundry dryer having a gas combustion apparatus, the apparatus comprising: a mixing pipe, having a mixing passage extending from an inlet end to an outlet end adapted to mix gas with primary air, the primary air and gas entering the mixing passage at the inlet end and a gas-and-air mixture exiting the mixing passage at the outlet end; a flame holder, disposed at the outlet end of said mixing pipe adapted to seperate the gas-and-air mixture exiting said mixing pipe into a complex plurality of jetted streams, the flame holder comprising an annular hub having a center flame hole and a plurality of outer wings radiating from the annular hub; and an igniter disposed adjacent the outlet end of said mixing pipe, wherein the igniter is adapted to ignite the gas-and-air mixture of said mixing pipe, wherein at least one of said outer wings has a circumferential width that is greater than the circumferential width of any other outer wing of said outer wings, and wherein said igniter is disposed adjacent said at least one outer wing.