Patent ID: 8282391
Filing Date: 2012-10-09
Classification: F23D

Abstract:
1. A burner comprising: a burner main body having a mixing pipe being supplied with a fuel gas and air for combustion, and provided with a mixing chamber at a downstream end side of the mixing pipe; and a burner head provided at an upper part of the burner main body while communicating with the mixing chamber, and having burner ports for ejecting a mixed gas of the fuel gas and combustion air mixed in the mixing chamber, wherein an extension pipe is protruded into the mixing chamber by extending the mixing pipe, wherein the extension pipe is positioned inside the mixing pipe and an end thereof extends through and beyond an end of the mixing pipe inside the mixing chamber, and wherein a bottom surface of said end of the extension pipe is flattened and said flattened surface is in contact with a bottom surface of the mixing chamber, whereby said contact between said flattened surface of the end of the extension pipe and said bottom surface of the mixing chamber prevents the extension pipe from rotating within the mixing chamber, wherein the protruded end of the extension pipe is cut to be continuously inclined, so as to have an upwardly extending opening.