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Gas burner

a technology of gas burner and oven door, which is applied in the direction of gaseous heating fuel, combustion types, domestic stoves or ranges, etc., can solve the problems of flame extinction, particularly troublesome oven door manipulation, and related pressure variations

Inactive Publication Date: 2009-07-02
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention provides a gas range with a cook top and a gas burner assembly. The gas burner assembly includes a burner body with at least one enclosed chamber and at least one venturi. The chamber has an inner wall with at least one port and an outer wall with at least one port. The venturi has an input for receiving a gas flow, a throated region, and an elliptical exit in flow communication with the chamber. The technical effects of the invention include improved gas flow control and efficiency, as well as improved flame quality and stability."

Problems solved by technology

Manipulation of the oven door is particularly troublesome because rapid openings and closings of the oven door often produce respective under-pressure and over-pressure conditions under the cook top.
These under-pressure and over-pressure conditions cause related pressure variations in the gas entering the burner chamber.
The pressure variations can translate into flow disturbances at the burner ports causing flame extinction.
Adverse changes in the flame characteristics are detrimental to various performance characteristics such as the inability to support flames at certain ports particularly at very low input rates.
However, these burners, while uniform in applying heat the cooking vessel, are only efficient for large cooking vessels where the diameter of the vessel is larger than the burner.

Method used

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Embodiment Construction

[0017]While the methods and apparatus are herein described in the context of a gas-fired cook top, as set forth more fully below, it is contemplated that the herein described method and apparatus may find utility in other applications, including, but not limited to, gas heater devices, gas ovens, gas kilns, gas-fired meat smoker devices, and gas barbecues. In addition, the principles and teachings set forth herein may find equal applicability to combustion burners for a variety of combustible fuels. The description herein below is therefore set forth only by way of illustration rather than limitation, and is not intended to limit the practice of the herein described methods and apparatus.

[0018]Typically, for a burner chamber, flow distribution is governed by individual port areas. The larger ports exhibit higher flow rates than smaller ports. Thus, port sizing, a static attribute of a burner, primarily determines this flow characteristic. This defines the distribution of flow rates ...

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PUM

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Abstract

A gas range has a cook top and a gas burner assembly. The gas burner assembly includes a burner body positioned in the cook top and connected to a source of gas. The burner body has at least one substantially enclosed chamber. The chamber has an inner wall with at least one port, and an outer wall with at least one port. At least one gas conduit with a substantially round entry for receiving a gas flow, a throated region, and a non-round exit in flow communication with the at least one chamber.

Description

BACKGROUND OF THE INVENTION[0001]This invention relates generally to an apparatus for gas burners, and, more particularly, an apparatus for improved flow characteristics for gas surface burners used in a gas-cooking product.[0002]Atmospheric gas burners are commonly used as surface units in household gas cooking appliances. A significant factor in the performance of gas burners is their ability to withstand airflow disturbances from the surroundings, such as room drafts, rapid movement of cabinet doors, and oven door manipulation. Manipulation of the oven door is particularly troublesome because rapid openings and closings of the oven door often produce respective under-pressure and over-pressure conditions under the cook top.[0003]These under-pressure and over-pressure conditions cause related pressure variations in the gas entering the burner chamber. Gas refers to any gas or fuel air mixture. The pressure variations can translate into flow disturbances at the burner ports causing...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F24C3/08
CPCF23D14/06F24C3/085F23D2900/14064F23D2900/14062
Inventor CADIMA, PAUL BRYANKUMAR, SHREEMCCROREY, PAUL E.
Owner GENERAL ELECTRIC CO