GB2223302A

GB2223302A - Gas burner

Info

Publication number: GB2223302A
Application number: GB8822730A
Authority: GB
Inventors: Yen Tiao-Ho
Original assignee: TIAO HO YEN
Current assignee: TIAO HO YEN
Priority date: 1988-09-28
Filing date: 1988-09-28
Publication date: 1990-04-04
Also published as: GB8822730D0

Abstract

A burner for a gas range includes an outer, and optionally an inner, burner assembly. The outer assembly has a mixing tube 11 feeding an annular chamber from which extend inner and outer annular outlets B, A and also inner and outer rings of holes. The inner assembly has its own mixing tube 21 and has both an annular outlet C and a ring of holes. The burner is designed to provide complete combustion without flame lifting. <IMAGE>

Description

MIGHT BURNER FOR GAS RANGE riELD OF THE TNvENTION The present invention relates to a mighty burner for gas range, which in particuiar, are a flame-focusing, free from flame-iifting an producing reddish flame, and complete combustion device without equipping with an air-regulated damper.

i3ACKGROUND OF THE tNVENTICN The present invention relates to a mighty burner for gas range which are particularly a flame-focusing device and can supply complete combustion for fuel gas without equipping an air-regulated danker. According to the operation procedures or the conventional gas burner, the Intake air flow rate is regulated at the mixing tube by means of adjustIng an airregulated damper located at the rear end cf the mixing tube, nixed with the fuel gas in the mixing tube and ignited at the range core (i. e.

portions of nozzles of the burner.) Its disadvantages is as follows: (1) The core of range is so big that the flame is irregularly disperse and can't focus on the bottom of the stove. (2) In case the pressure of fuel is higher, the gas-air mixture will be immediately blown off before being completely combusted while the mixture reaches the nozzle openings and push the flame out of the range core which will cause unstable flame-lifting phenomena or completely blow flame out. (3) Owing to the air-regulated damper is equipped at the rear end of the mixing tube, housekeepers do not know how to adjust and scare to touch it.

Then, the flow rate of intake air in the mixing tube will fluctuate between excess or insufficiency and result in flame-lifting in case of excess and incomplete combustion (i. e. reddish flame) in case of insufficiency. All above three disadvantage will decrease the combustion eff- ciency of the burner and waste fuels. Besides, it will produce the hazardous waste gas and endanger the user's health. In order to improve the above-mentioned defects, the inventor invents this present Invention through accumulating a lot of experiences in the field of the gas range design, manufacture and usage and making å long period of experiment.

SUbSIARY OF THE INVENTION A major object of the present invention is to supply a flame-focusina mighty gas burner. Another object of the present invention is to provide a gas range which is free from flame-lifting and reddish flames and can supply a complete combustion. A further purpose of the present invention is to provide a gas range which is not needed to eauip with an air-regulated damper and can automatically inhale the proper quantity of air for mixing with fuel.

Techniques, equipment, accessories and its effects for the above and other objects, features and advantages of the present invention will become more apparent from the following description when taken in conjunction with the accompanying drawings in which preferred embodiments of present invention are shown by way of illustrative example.

But, special terms of the equipment and accessories are only for explanation, not for limiting its meanings.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a three-dimensional drawing of the mighty burner for gas ranee according to the present invention.

Fig. 2 isan illustrated example of the present invention in operation.

Fig. 3 is a three-dimensional of the burner set of the present invention product.

Fig. 4 is a cross-sectional view of the present invention product.

Fig. 5 is a cross-sectional view of the outer burnino system of the present invention product.

Fig. 6 is a cross-sectionan view of the outer burner set of te present invention product.

Fig. ; is a cross-sectional view of the outer burner core of the present invention product.

Fig. 8 is a bottom view of the outer burner core of the present invention product.

Fig. 9 is a cross-sectional view of the inner burning system of the present invention product.

Fig.10 is a cross-sectional view of the inner burner set of the present invention product.

Fig.ll is a cross-sectional view of the inner burner core of the present invention product.

Fig.12 is a three-dimensional view of the inner burner core of the present invention product.

DESCRIPTION OF THE PREFERRED EN1BODINENTS A mighty burner for gas range according to an embodiment of the present invention is shown in Fig. 1, 2 and 4 is consisted of : an outer burning system 1 (see Fig. 5 through 8) and an inner burning system 2 (see Fig.

9 through 12). Although said system 1 and 2 must be casted together in manufacturing, the fuel gas flow processes are independently separated. The followings are the description for the outer burning system 1 : the system 1 is consisted of an outer burner set 12, a mixing tube 11 of the outer burner, an outer burner core 13. Fuel gas and air are sucked into the tube 11, flow through the set 12, reach the nozzles of the core li and ignited. Said set 12 (see Fig. 3 and 6) having a ring-shaped concave groove is used for enveloping the mixed gas coming from the tube 11 and engaging core 13.The bottom portion of the set 12 having a hole which is connected to the tube 11 is designed for the flow of mixture gas; the top portions of the set 12 have an irregular stepeise ring shape in which shape and heist are match- ing with the bottom side of the core 13.The inner concave surface of the set 12 installs three solid holder 121 in equal-distance isee Fig. 3 One end of the tube 11 (see Fig. 3 and 6) having an L-shape is connecting to the bottom of the set 12, another end of the tube 11 is the conical member 11; the center of the member 113 has a round shape fuel gas inlet 111 in which both sides of the inlet are fan-shaped air inlet 11.

During fuel fas is blown into member 113 through inlet 111, adeauate quantity of air will be sucked from air inlet 112 duing to the suction force formed by the pressure difference through air flow action and mixed with fuel gas. The more fuel gas pressure (i. e. fuel gas flow rate) is, the more air is sucked. Based on this, the quantity of intake air is quite enough for the uses in mixing with the large quantIty of fuel gas. It is the reason that the gas burner according to the pressent invention can automatically regulate necessary air flow rate and get the complete combustion effect without adopting the air-regulated damper.

After air and fuel gas are sucked into the member 113, it will be blown into the set 12 which is connected to another end of the tube through the tube 114.

The core 13 (see Fig. 7 6 8) as a cover body in ring-shape are located on the top side of the set 12 and has the smaller top area than conventional one in order to concentrate flames on the bottom of the pan, prevent flames from separation, or flying off the pan, decrease heat loss and increase combustion efficiency. On its horizontal ringshaped surface of the top portion, there are three burner grates 13 in equal-distance for holding pots and pans.The bottom surface of the core 13 having an irregular stepwise ring surface is supplied with an outward-concaved ring member i34 and an inward-concaved ring member 13D On the member 13 , there are several outer nozzles 13i and middle-portion nozzles 132 which are all separately furnished in equal-distance and respectively connected to the declined ring surface at the outer topside and the inner topside of the core 13 for forming the main flames by means of delivering the mixed gas from the set 12 to the cook toD.

On the member 134, several radial grooves 136 are separately furnished in equal-distance for fulfilling with fuel gas over the system. The contacting surface between said core 13 and set 12 is the ring surface of the ring 1J4 which is furnished with the radial grooves 136, the other s mmetrical portions having a slit almost in equal width forms an outer circular flow channel .R and a middle-portion circular flow channel B (see Fig. 5) for passing a part of mixed fuel gas in the set 12 throughout the core 13, the nozzles 131 and the nozzles 132.

After being ignited, this part of flames will reignite and completely burn out the fuel gas residued from flame-lifting. As a result, it will not only strengthen the intensity of flames, but also eliminate hazardous exhausted gas from incomplete combustion and secure the user's health.

The followings are descriptions for the inner burning system : The system 2 is consisted of an inner burner set 22, a mixing tube 21 of the inner burner and an inner burner core 23. Fuel gas and air are sucked into the tube 21, flow through the set 22, reach the nozzle of the core 23 and ignited. Said set 22 (see Fig. 3 6 10) having a ringshaped body is furnished at the center opening of the set 12 with several connecting blocks 223 for binding the set 22 and the set 12 together (see Fig. 3 6 4).The top portion of the set 22 have a stepwise ring-shaped surface which can match with the shape of the bottomportion surface of the core 23 and is separately furnished with radial groove 222 in equal-distance at the lower stepwise ring-shaped surface for fulfilling with fuel gas over the system.

The inner wall of said set 22 is supplied with three inner ring holding solid blocks 221 which are separately furnished in equal distance. The bottom portion of said set 22 is connected to the tube 21 for delivering the mixed gas in the tube 21 to the set 22. The tube 2 (see Fig. 10 6 3) almost in L-shape is forged into one piece with the tube 11. Owing to the core 23 is smaller than the core 13, the fuel gas necessary is so little that its pipe diameter is smaller than the diameter of the tube 11. Said tube 21 is connected to the bottom portion of the set 22. Another end is furnished with a conical groove 213 and supplied with a round fuel gas inlet 211 at the center.Both sides of the inlet 211 have a fan-shaped air inlet 212 in which functions are the same as the functions of the tube 11. Fuel gas is blown into the groove 213 through the inlet 211; air is sucked into the groove 213 from the inlet 212. After both gases is mixed in the tube 214, its are delivered into the set 22 which is connected to the top portion of the tube 21.

Said core 23 having a mushroom-shape (see Fig. 11 and 12) located on the top portion of the set 22, has a hollow stem at its bottom portion.

There have several nozzles 231 which are separately furnished in equal distance and connected to the declined ring surface at the outer ring of the top portion of the core 23 in order to deliver the mixed gas in the set 22 to the cook top. The contacting surface between the core 23 and the set 22 is the ring surface of the stem portion of the core 23 and of the radial groove 222. The other corresponding portion having a slit almost in equal width forms an inner circular flow channel C (see Fig. 9) for delivering a part of mixed gas in the set 22 to the side portion and inner nozzles of the core 23 and forming flames.

mizen users start to open the control knob of the gas range, fuel gas is respectively blown into the appropriate conical grooves from the iniets of the tube 11 and the tube 1. t this moment, the air pressure differences are formed in each conical grooves and air is sucked into each burning set from each air inlet after mixing with fuel gas in mixing tubes. Then, the most parts of the mixed gas reach the noz=les and cook top through each burning core and is ignited as main flames.

When the mixed gas is delivered to each burner set, a small part of mixed gas flows through each circular flow channel into side portions and each nozzle and is ignited to form auxiliary flames.

Said auxiliary flames are used for burning off gases resulted from the flame-lifting and assure a complete combustion.

A mighty burner for gas range as described above can be manufactured in the style of single-channel 6 single-burner core to meet the marketing demand (see Fig. 5). Said gas burner is only consisted of the abovementioned system 1 (i. e. the set 12, the tube 11 and the core 13).

One end of the tube 11 is connected to the bottom portion of the set 1 and another end is furnished with the fuel gas inlet 111 and the air inlet 112; the core 13 locates on the top portion of the set 12 and spare a slit in between to form an outer circular flow channel A and a middle-portion circular flow channel B.

After assembling the above-mentioned elements, the tube 11 can suck appropriate quantity of air for blending with fuel gas by means of the pressure difference formed at the gas inlet during fuel gas is blown into the gas inlet and flow into the nozzles of the core 13 through the tube 11, the set 12 and is ignited to form main flames.

Besides, a part of blending gas flow through the outer circular flow channel A and the middle-portion channel B between the set 12 and the core 13 and is blown into the nozzles at the side portions of the burner set and ignited to form flames which can burn off residual gases resulted from the flame-lifting at the outer nozzles 131 and the middle-portion nozzles 132 and totally accomplish complete combustion effect. As a result, the burner core according to the present invention is smaller than the conventional core and can prevent flames from split and concentrate all flames on the bottom portion of the pan and the pot.

It do increase the combustion efficiency. Meanwhile, the present invention utilizes the suction action resulted from the pressure difference by blowing flow of fuel gas to suck appropriate quantity of air and blend with fuel gas without the use of the air-regulated damper.

That is why it can avoid the trouble in operating the air-regulated damper.

Besides, a circular flow channel which can produce flames can help to burn completely off gases residued from the flame-lifting at the nozzles, strengthen the intensity of flames and assure to be free from producing hazardous exhaust gas.

Claims

isHA. IS CLAIN1ED iS

A mighty burner for gas range, comprising: (a) an outer burning system 1 consisted of an outer burner set 12, a mixing tube 11 of the outer burner and an outer burner core 13; (b) an inner burning system 2 consisted of an inner burner set 22, a mIxing tube 21 of the inner burner and an inner burner core ; in which its characteristics is as follows: said set 12 having a ring-shaped concave groove and an irregular stepwise ring-shaped top-portion matched with the bottom-portion of the core 13; three solid holder 121 is separately instailed in equaldistance for holding the outer burner core at the inner concave surface of said groove of the set 12; the bottom portion of the set 12 furnished with a hole which is connected to the tube 11; the mixing tube 11 is in L-shape and its top portion are connected to the bottom of the outer burner set 12; another end of the tube 11 is supplied with a conical member 113 and a round-shape fuel gas inlet 111 in the center for blowing fuel gas, there are fan-shaped air inlet 112 at both sides of the inlet for sucking air; the core 13 is a cover body in ring-shape and locates on the top of the set 12 in which the top area of the core is smaller than the top area of the conventional core in order to concentrate flames on the bottom of pans and pots; the bottom portion of the core 13 has an outwardconcaved ring member 134 and an inward-concaved ring member 135, in which the ring surface of the member 134 has several radial grooves separately furnished in equal-distance for the flow of fuel gas over the system and there are several outer nozzles 131 and middle-portion nozzles 132 in between the ring member 134 and the ring member 135 and separately furnished in equal-distance which are respectively connected to the declined ring surface at the outer topside and the inner topside of the core 1 for forming main flames through delivering the mixed gas from the set 12 to the cook top; the contacting surface between said core 13 and the set 12 is the ring surface of the ring 134 which is furnished with the radial grooves 1X6, the other symmetrical portions have a slit almost in equal width and forms an outer circular flow channel A and a middle-portion circular flow channel B for delivering a part of mixed fuel gas in the set 12 to the core 13, the nozzles 131 and the nozzles 132; the inner burner set 22 having a ring-shaped body is furnished with several connecting blocks 223 at the center opening of the set 12 for binding the set 22 and the set 12 together, the top portion of the set 22 have a stepwise ring-shaped surface which can match the shape of the bottom-portion surface of the core 23 and is separately furnished with several radial groove 222 in equal-distance at the lower stepwise ring-shaped surface for the flow of fuel gas over the system; the inner wall of said set 22 is supplied with three solid blocks 221 for holding the inner burner core 23 which are separately furnished in equal distance, the bottom portion of said set 22 is connected to the tube 21 for the flow of the mixed gas; said tube 21 of the set 22 is connected to the portion of said ringshaped body; another end is furnished with a conical groove 213 and supplied with a round fuel gas inlet 211 at the center and both sides of the inlet 211 have a fan-shaped air inlet 212 in which functions are the same as functions of the tube 11, therefore it can suck and deliver an appropriate quantity of air to the set 22 after blending with fuel gas in the tube 21 by means of the flowing speed of fuel gas while it is blown into said conical groove; said core 23 having a mushroom-shape located on the top portion of the set 22, has a hollow stem at its bottom portion and is equipped with several nozzles 1 which are separatel furnished in equal distance and connected to the declined ring surface at the outer ring of the to? portion of the ccre 23 in order to deliver the mixed gas in the set 2 to the cook top; the contacting surface between the core 23 and the set 22 is the ring surface of the stem portion of the core 2 and of the radial groove 22, the other correspondin portion having a slit almost in equal width forms an inner circular flow channel C for delivering a part of mixed gas in the set 22 to the side portion and inner nozzle of the core 23;; while complete the assembly with all above-mentioned elements and fuel gas is respectively blown into the gas inlet of the tube from each end of the mixing tubes, an appropriate quantity of air is sucked from the air inlets duing to the air pressure differences between the inner portions and the outer portions of the conical grooves formed by the flow of fuel gas and mixed in the mixing tubes, then delivered into the sets in which most parts of the mixed gas is delivered into the cook top through the nozzles and ignited to form main flames; a small part of mixed gas flows into side portions of the sets and each nozzle through each circular flow channel and is ignited to form auxiliary flames; said auxiliary flames can burn off gases resulted from the flame-lifting and assure a complete combustion.
2. A mighty burner for gas range, comprising: An outer burner set 12, a mixing tube 11 of the outer burner and an outer burner core 13; in which its characteristics is as follows: said set 12 having a ring-shaped concave groove and an irregular stepwise ring-shaped top-portion matched with the bottom-portion of the core 13; three solid holder 121 is separately installed in equal distance for holding the outer burner core at the inner concave surface of said groove of the set 12; the bottom portion of the set 12 is furnished with a hole which is connected to the tube 11; the mixing tube 11 is in L-shape and its top portion are connected to the bottom of the outer burner set 12; another end of the tube 11 is supplied with a conical member 113 and a round-shape fuel gas inlet 111 in the center for blowing fuel gas, there are fan-shaped air inlet 112 at both sides of the inlet for sucking air; the core 13 is a cover body in ring-shape and locates on the top of the set 12 in which the top area of the core is smaller than the top area of the conventional core in order to concentrate flames on the bottom of pans and pots; the bottom portion of the core 1 has an outward-concaved ring member 134 and an inward-concaved ring member 135, in which the ring surface of the member 134 has several radial grooves separately furnished in equal-distance for the flow of fuel gas over the system and there are several outer nozzles 131 and middle-portion nozzles 132 in between the ring member 134 and the ring member 135 and separately furnished in equal-distance which are respectively connected to the declined ring surface at the outer topside and the inner top side of the core 13 for forming main flames through delivering the mixed gas fron the set 12 to the cook top; the contacting surface between said core 13 and the set 12 is-the ring surface of the ring 14 which is furnished with the radial grooves 136, the other symmetrical portions have a slit almost in equal width and forms an outer circular flow channel A and a middle-portion circular flow channel B for delivering a part of mixed fuel gas in the set 12 to the core 13, the nozzles 131 and the nozzles 132; while complete the assembly with all above-mentioned elements and fuel gas is respectively blown into the gas inlet of the tube from each end of the mixing tube, an appropriate quantity of air is sucked from the air inlet duing to the air pressure differences between the inner portion and the outer portion of the conical groove formed by the flow of fuel gas and mixed in the mixing tube, then delivered into the set, in which most parts of the mixed gas is delivered into the cook top through the nozzles and ignited to form main flames; a small part of mixed gas flows into side portions of the set and each nozzle through each circular flow channel and is ignited to form auxiliary flames; said auxiliary flames can burn off gases resulted from the flamelifting and assure a complete combustion.