Gas burner with a compact injet

Abstract

A gas burner includes a burner body that defines a plurality of naturally aspirated flame ports and a plurality of forced induction flame ports. A first gas orifice is mounted to an injet body such that the first gas orifice is oriented for directing a flow of gaseous fuel towards the plurality of naturally aspirated flame ports. A second gas orifice and the injet body form an eductor mixer within a mixing chamber of the injet body. A mixed outlet nozzle is mounted to the injet body at the mixing chamber such that the mixed outlet nozzle is oriented for directing a mixed flow of air and gaseous fuel from the mixing chamber towards the plurality of forced induction flame ports.

Description

FIELD OF THE INVENTION[0001]The present subject matter relates generally to gas burners, such as forced induction gas burners.BACKGROUND OF THE INVENTION[0002]Conventional gas cooking appliances have one or more burners. A mixture of gaseous fuel and air combusts at the burners to generate heat for cooking. Known burners frequently include an orifice and Venturi mixing throat. A jet of gaseous fuel between the orifice and the Venturi mixing throat entrains air into the Venturi mixing throat with the jet of gaseous fuel. The air and gaseous fuel mix within the Venturi mixing throat, and the mixture of gaseous fuel and air is combusted at flame ports of the burners. Such burners are generally referred to as naturally aspirated gas burners.[0003]Naturally aspirated gas burners can efficiently burn gaseous fuel. However, a power output of naturally aspirated gas burners is limited by the ability to entrain a suitable volume of air into the Venturi mixing throat with the jet of gaseous f...

AI Technical Summary

Benefits of technology

The present invention relates to gas burners for industrial applications. The technical effects of the invention are the improved mixing of air and gaseous fuel, which results in better flame quality and better efficiency of gas burners. The gas burner has a unique design that includes a mixing chamber with two gas orifices, an eductor mixer, and a mixed outlet nozzle, which allows for a mixed flow of air and gaseous fuel. This mixing process creates a more complete and uniform mixture of air and gas, resulting in a more stable flame and better heat transfer. The patent describes two specific embodiments of the gas burner with different configurations and arrangements of the gas orifices and the injet body.

Problems solved by technology

However, a power output of naturally aspirated gas burners is limited by the ability to entrain a suitable volume of air into the Venturi mixing throat with the jet of gaseous fuel.

While offering increased power, known forced induction gas burners suffer from various drawbacks.

For example, known forced induction gas burners are bulky and occupy large volumes within cooktop appliances.

In addition, plumbing of the gas / air lines within known forced induction gas burners is complex and costly.

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