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  Flame inductor and fire tier arrangement for gas burner-based apparatusUSPTO Application #: 20060210939Title: Flame inductor and fire tier arrangement for gas burner-based apparatus Abstract: An inductor and fire tier arrangement used in a gas burner-based apparatus having an ignition flame generating unit with a flame inductor and gas burner with multiple fire tiers is disclosed. The flame inductor has the tip thereof set suspending above a plate member in one flame hole of one fire tier of the gas burner to detect the presence of the flame and to turn off power supply and shut off the supply of fuel gas when detects no signal. (end of abstract) Agent: Pro-techtor International - Saratoga, CA, US Inventor: Wen Chou Chen USPTO Applicaton #: 20060210939 - Class: 431285000 (USPTO) Related Patent Categories: Combustion, Separately Supplied Or Controlled, Physically Related Flame Holders, E.g., Diverse Fuels, Pilot And Main, Etc., Having Common Flame Chamber Or Shield Means The Patent Description & Claims data below is from USPTO Patent Application 20060210939. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates generally to a gas burner-based apparatus such as gas range, gas furnace, gas water heater, etc. and more particularly, to an inductor and fire tier arrangement for gas burner-based apparatus, which prevents incomplete combustion of fuel gas at the gas burner. [0003] 2. Description of the Related Art [0004] Many technical teachings have been disclosed to automatically turn off power supply and shut off the supply of fuel gas upon shortage of oxygen at the gas burner during burning, preventing the problems of high consumption of fuel gas from incomplete combustion, low thermal efficiency and poisoning of carbon monoxide. In one conventional teaching, a flame inductor is used to detect the burning status of the gas burner and to automatically turn of power supply and shut off the supply of fuel gas upon abnormal burning due to shortage of oxygen (in the following description, to turn off power supply and shut off the supply of fuel gas has the same meaning as apparatus shutdown). [0005] FIG. 1 illustrates the outer appearance of the ignition flame generating unit 40 and gas burner 50 of a gas water heater according to the prior art. According to this design, the ignition flame generating unit 40 comprises a base frame 41, which supports an ignition electrode 42, a flame inductor 43 and a mixing pipe 44. The gas burner 50 comprises 11.about.15 pieces of fire tiers 51. Each fire tier 51 has a plurality of flame holes 52. [0006] When turned on the faucet, the electric circuit of the gas water heater is simultaneously turned on. At this time, a small amount of fuel gas is supplied to the mixing pipe 44 and discharged out of the ignition flame nozzle 45 at the top side of the mixing pipe 44. At the same time, the ignition electrode 42 discharges a high voltage to produce sparks that burns the discharged fuel gas, thereby producing an ignition flame. When the flame inductor 43 detected the presence of the ignition flame, the ignition electrode 42 is stopped from discharging a high voltage, and at the same time, the gas supply pipe is opened to supply fuel gas to the gas burner 50, and therefore a relatively bigger amount of fuel gas is discharged out of the flame holes 52 and burned by the ignition flame to produce the desired main flame for heating water. [0007] After the formation of the main flame, the flame inductor 43 keeps detecting the burning status of the gas burner 50 so as to control the operation of the gas water heater subject to the detection result. In order to detect the burning status of the gas burner 50, the tip 46 of the flame inductor 43 must be extended to a place right above the flame holes 52. [0008] Setting the tip 46 of the flame inductor 43 above the flame holes 52 enables the flame inductor 43 to detect the presence of a flame at the gas burner. However, if the flame is floating above the flame holes 52 due to low concentration of oxygen, the flame inductor 43 still detects the presence of the flame, and the gas water heater will keep working, i.e., the flame inductor 43 cannot automatically turn off power supply and shut off the supply of fuel gas during this unstable burning status. SUMMARY OF THE INVENTION [0009] The present invention has been accomplished under the circumstances in view. [0010] It is the main object of the present invention to provide a flame inductor and fire tier arrangement for gas burner-based apparatus, which detects the presence of the flame and automatically turns off power supply and shuts off the supply of fuel gas when detects no signal. [0011] According to one embodiment of the present invention, the inductor and fire tier arrangement is used in a gas burner-based apparatus comprising an ignition flame generating unit having a flame inductor with a tip, and gas burner, which comprises at least one fire tier, each fire tire comprising a plurality of flame holes and partition members between each-two adjacent-flame holes; wherein the tip of the flame inductor set suspending above one partition member between two adjacent flame holes of one fire tier for detecting the presence of a flame. [0012] According to another embodiment of the present invention, the inductor and fire tier arrangement further comprises a plate member bridging one partition member between two adjacent flame holes of one fire tier; the tip of the flame inductor set suspending above the plate member for detecting the presence of a flame. [0013] According to still another embodiment of the present invention, the plate member can be bridging one flame hole; the tip of the flame inductor set suspending above the plate member for detecting the presence of a flame. BRIEF DESCRIPTION OF THE DRAWINGS [0014] FIG. 1 illustrates the outer appearance of an inductor and a gas burner in a gas burner-based apparatus according to the prior art. [0015] FIG. 2 is a schematic side view of the assembly of FIG. 1, showing the relationship between the inductor and the flame upon shortage of oxygen. [0016] FIG. 3 illustrates the outer appearance of an inductor and a gas burner in a gas burner-based apparatus according to the present invention. [0017] FIG. 4 is a schematic side view of the assembly of FIG. 3, showing the relationship between the inductor and the flame upon shortage of oxygen. [0018] FIG. 5 illustrates the outer appearance of an inductor and a gas burner in a gas burner-based apparatus according to an alternate form of the present invention. [0019] FIG. 6 illustrates the outer appearance of an inductor and a gas burner in a gas burner-based apparatus according to another alternate form of the present invention. [0020] FIG. 7 illustrates the outer appearance of an inductor and a gas burner in a gas burner-based apparatus according to still another alternate form of the present invention. [0021] FIG. 8 illustrates the outer appearance of still another alternate form of the present invention. Continue reading... Full patent description for Flame inductor and fire tier arrangement for gas burner-based apparatus Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Flame inductor and fire tier arrangement for gas burner-based apparatus patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Flame inductor and fire tier arrangement for gas burner-based apparatus or other areas of interest. ### Previous Patent Application: Hot stuff aka chic lite Next Patent Application: Candle system Industry Class: Combustion ### FreshPatents.com Support Thank you for viewing the Flame inductor and fire tier arrangement for gas burner-based apparatus patent info. 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