CN101418955B - Main and side burner and production method thereof - Google Patents
Main and side burner and production method thereof Download PDFInfo
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- CN101418955B CN101418955B CN 200810166563 CN200810166563A CN101418955B CN 101418955 B CN101418955 B CN 101418955B CN 200810166563 CN200810166563 CN 200810166563 CN 200810166563 A CN200810166563 A CN 200810166563A CN 101418955 B CN101418955 B CN 101418955B
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Abstract
The invention provides primary-secondary combustors and a manufacturing method thereof, and solves the problem of not only maintaining good flame transfer property but also manufacturing effectively with low cost. The primary-secondary combustors are provided with a secondary combustor cover and an annular main combustor cover (10) around the secondary combustor cover. The secondary combustor cover is provided with a secondary combustor fire hole, and the main combustor cover (10) is provided with a main combustor fire hole (11). A hollow convex part (14) is convexly arranged on an upper wall part (13) of the main combustor cover (10) between the main combustor fire hole (11) and the secondary combustor fire hole; and a pair of flame transfer holes (17, 18) is formed on the convex part (14), by using the center of the main combustor cover (10) as a cutting rotary axle center to rotate, and cutting a thick part of the convex part (14) between a longitudinal wall part (15) at the secondary combustor fire hole and a longitudinal wall part (16) at the main combustor fire hole (11) by using a lathe to process.
Description
Technical field
The present invention relates generally to gas furnace with the manufacture method of main and side burner and this main and side burner.
Background technology
In the past, as this gas furnace main and side burner, known have following a kind of gas furnace main and side burner, that is: the ring-type main burner lid that has the auxiliary burner lid and cover around auxiliary burner, the circumferential wall part of auxiliary burner lid has a plurality of auxiliary burner fire holes, and there is the interval in this auxiliary burner fire hole at circumferencial direction; The circumferential wall part of the periphery of main burner lid has a plurality of main burner fire holes, and there is the interval in this main burner fire hole at circumferencial direction.In addition, in this main and side burner, generally with igniter one of them igniting to auxiliary burner fire hole and main burner fire hole, make it pass the fire igniting to other fire holes.
But, in this main and side burner, for the ease of between auxiliary burner fire hole and main burner fire hole, passing the fire igniting, known have following a kind of design, that is: the upper wall portions at the main burner lid arranges slot-shaped flash hole, this slot-shaped flash hole stretches (for example, No. 2506954 patent gazette of Japan Patent) along diametric(al) between main burner fire hole and auxiliary burner fire hole.In this design, owing to the cutting from main burner lid periphery aspect, slot-shaped flash hole has been blocked the outer peripheral portion of the main burner lid of the surrounding wall portion that comprises periphery fully.
But, if in case form slot-shaped flash hole, block the outer peripheral portion of main burner lid fully, flash hole can be because the thermal expansion that the main burner lid produces, outwards shrink and become narrow in diametric(al), the gas quantity that passes burner output will reduce, and causes can not passing well fire between main burner fire hole and the auxiliary burner fire hole.And if the upper wall portions of slot-shaped flash hole and main burner lid at grade, flash hole can because boiling thing overflows and stop up, can not obtain good biography bad temper.
Therefore, known have following a kind of design, that is: the protuberance of a hollow is set in the upper wall portions of main burner lid, forms flash hole (for example, the real fair 4-24260 communique of Japan) at this protuberance.In this design, flash hole is by slot-shaped or be a plurality of small pore-like, laterally gets through on half circumference of protuberance or whole circumference and forms.Owing at described protuberance flash hole is set, thereby reduces the main burner lid because of the impact of thermal expansion generation and the inflow of boiling thing juice, can keep good biography bad temper.
But, upper wall portions at the main burner lid arranges described protuberance, and when on the perisporium of this protuberance, laterally getting through flash hole, need to be on protuberance, insert the cutting elements such as drill bit on the transverse direction that intersects with the projected direction of protuberance, and cutting element can have influence on other parts (for example, the upper limb of main burner fire hole etc.) of main burner lid, the problem of flash hole will occur forming in the desired location of protuberance.Therefore, promote the height of the projected direction of protuberance, allow cutting element cut flash hole in the position that does not affect main burner and cover other parts.If do like this, just strengthened the distance between flash hole and the main burner fire hole, produce the bad problem that bad temper reduces that passes.
In addition, upper wall portions at the main burner lid arranges described protuberance, and when this protuberance forms flash hole, in the time of particularly will a plurality of protuberance being set, just must carry out seriatim for each protuberance the processing operation of flash hole, thereby produce the problem because of inefficiency lifting manufacturing cost.
Summary of the invention
In view of described problem, problem of the present invention is to provide a kind of main and side burner and manufacture method thereof, and its purpose is: not only can keep well the biography bad temper, and can also be efficiently and make at an easy rate and produce.
In order to solve described problem, the ring-type main burner lid that main and side burner of the present invention has the auxiliary burner lid and covers around auxiliary burner wherein, has a plurality of auxiliary burner fire holes on the surrounding wall portion of auxiliary burner lid, and there is the interval in this fire hole at circumferencial direction; The surrounding wall portion of the excircle direction of main burner lid has a plurality of main burner fire holes, and there is the interval in this fire hole at circumferencial direction.It is characterized in that, in the upper wall portions of the lid of the main burner between main burner fire hole and auxiliary burner fire hole, the outstanding protuberance that a hollow is set towards the top, the inside of the protuberance of this hollow is communicated with the main burner fire hole; With the center of main burner lid as the cutting axis of rotation, rotate this main burner lid, process by lathe, thick part between the longitudinal wall part of the longitudinal wall part of the auxiliary burner fire hole side of this protuberance and main burner fire hole side is machined away, obtain thus a pair of flash hole that is communicated in this protuberance offered at this protuberance, this a pair of flash hole is along the circumferential openings of described main burner lid, and the flash hole of described auxiliary burner fire hole side is on the same circumference of described main burner lid, on the other hand, the flash hole of described main burner fire hole side is on another same circumference of described main burner.
According to described structure, owing to have the protuberance of flash hole by the outstanding upper wall portions that is arranged on the main burner lid towards the top, therefore, can prevent that the overflow that boils that the upper wall portions through main burner lid flows down from flowing into flash hole, thus can be good keep the biography bad temper.
In addition, owing to flash hole forms through lathe processing cutting, flash hole is very large, can obtain higher biography bad temper.And flash hole is by lathe processing, rotation main burner lid, a part that machines away the part protuberance forms, even the aspect ratio of the projected direction of protuberance is lower, also can offer definitely flash hole, shorten the distance between flash hole and the main burner fire hole, improve the biography bad temper.
In addition, in main and side burner of the present invention, the ideal form of described protuberance is as follows, that is: with the circumferencial direction of described main burner lid during as width, form the width of the longitudinal wall part of a described auxiliary burner fire hole, less than the shape of the width of the longitudinal wall part of described main burner fire hole; The aperture area of the flash hole of described auxiliary burner fire hole end is less than the aperture area of the flash hole of described main burner fire hole end.
Therefore flash hole among the present invention, can set according to the shape of protuberance the opening shape of flash hole owing to be to be formed by a part that machines away protuberance by lathe processing.Because the protuberance that forms like this, its width of longitudinal wall part that is shaped as auxiliary burner fire hole end is less than the width of the longitudinal wall part of main burner fire hole end, therefore, flash hole by lathe processing acquisition, the flash hole of auxiliary burner fire hole end is with respect to the flash hole of main burner fire hole end, and its aperture area is little.Like this, the flash hole opening of main burner fire hole end enlarges, can improve the biography bad temper to the main burner fire hole, simultaneously, the flash hole opening of auxiliary burner fire hole end dwindles, can reduce the flame of flash hole to the impact (for example, yellow flame etc. occuring) of auxiliary burner fire hole flame, thereby auxiliary burner is burnt well.
In main and side burner of the present invention, the ideal form of each flash hole of described protuberance is as follows, that is: be the inclined plane that forms to tilt downwards towards the outside of this protuberance in the downside cutting face that the longitudinal wall part of this protuberance forms.Like this, when boiling overflow from the top of protuberance drippage, the inclined plane that the juice that the longitudinal wall part of process protuberance flows down can form along the downside cutting face of each flash hole flow to the protuberance outside, can prevent that juice from flowing in the protuberance by flash hole, prevent from stopping up flash hole, thereby realize keeping good biography bad temper.
In main and side burner of the present invention, the perfect condition of each flash hole of described protuberance is as follows, that is: the inner edge of each flash hole of described protuberance in the downside cutting face that the outer rim in the upside cutting face that the longitudinal wall part of this protuberance forms forms than the longitudinal wall part of this protuberance will more lean on the outside of this protuberance.Like this, even boil overflow from protuberance top drippage, also can stop juice to flow to the inside of protuberance.
In addition, main and side burner of the present invention, the ring-type main burner lid that has the auxiliary burner lid and cover around auxiliary burner, wherein, the surrounding wall portion of auxiliary burner lid has a plurality of auxiliary burner fire holes, and there is the interval in this fire hole at circumferencial direction; The surrounding wall portion of the periphery of main burner lid has a plurality of main burner fire holes, and there is the interval in this fire hole at circumferencial direction.The manufacture method of described main and side burner is characterized in that, in the upper wall portions of the lid of the main burner between main burner fire hole and auxiliary burner fire hole, projects upwards the protuberance that forms hollow, and the internal communication of the protuberance of this hollow is to the main burner fire hole; As the cutting axis of rotation, rotate this main burner lid with the center of main burner lid; Process by lathe, machine away the wall thickness part of the longitudinal wall part of the longitudinal wall part of auxiliary burner fire hole side of this protuberance and main burner fire hole side, offer the flash hole that diametric(al) a pair of and the main burner lid is interconnected in the inside of this protuberance, this a pair of flash hole is along the circumferential openings of described main burner lid, and the flash hole of described auxiliary burner fire hole side is on the same circumference of described main burner lid, on the other hand, the flash hole of described main burner fire hole side is on another same circumference of described main burner.
According to the present invention, as the cutting axis of rotation, be processed to form flash hole by lathe with the center of main burner lid, therefore, even the workload that a plurality of protuberances also can not increase processing is set, can very effectively offer flash hole.And, by lathe processing rotation main burner lid, machine away the part of protuberance and form flash hole, thereby, lower even the projected direction of protuberance gets aspect ratio, also can conscientiously offer flash hole.
Description of drawings
Fig. 1 is the phantom of the main and side burner of embodiment of the present invention.
Fig. 2 is the top view of main burner lid.
Fig. 3 is the top view of explanation protuberance.
Fig. 4 is the cutaway view along the IV--IV line of Fig. 2.
Fig. 5 is the major part cutaway view of the main burner lid of other forms.
Label declaration
6: the auxiliary burner lid; 7: the auxiliary burner fire hole; 10: the main burner lid; 11: the main burner fire hole; 13: upper wall portions; 14: protuberance; 14a: top; 15,16: longitudinal wall part; 17: the 1 flame flash holes (flash hole of auxiliary burner fire hole); 19,20: downside cutting face (inclined plane); 19a, 20a: the inner edge in downside cutting face; 21,22: the upside cutting face; 21a, 22a: the outer rim in upside cutting face; 18: the 2 flash holes (flash hole of main burner fire hole); X: cutting axis of rotation.
The specific embodiment
According to drawing example of the present invention is described.Fig. 1 is the phantom of the main and side burner of this example of expression, Fig. 2 is the top view of expression main burner lid, Fig. 3 is the top view of expression protuberance, and Fig. 4 is the cutaway view that represents along the IV--IV line of Fig. 2, and Fig. 5 is the major part cutaway view of the main burner lid of other forms of expression.
The burner of Fig. 1 is master-slave burners for stove, consists of by auxiliary burner 1 with around the main burner 2 of auxiliary burner 1, and it is inner to be positioned at diagram abridged gas furnace.This main and side burner has auxiliary burner mixing tube 3 and main burner mixing tube 4.And the gas nozzle that each mixing tube 3,4 upstream extremity do not show facing to diagram generates mists at each mixing tube 3,4, and this mist is the mist of the primary air of absorption during with the fuel gas ejection for the fuel gas that discharges from each gas nozzle.
The downstream of auxiliary burner mixing tube 3 have towards above the inner core 5 of opening, in the upper end of inner core 5, the auxiliary burner lid 6 of forging and pressing copper is installed.Auxiliary burner mixing tube 3 and inner core 5 and auxiliary burner lid 6 consist of auxiliary burner 1.Surrounding wall portion at auxiliary burner lid 6 has a plurality of auxiliary burner fire holes 7, and has the interval at circumferencial direction.The mist that auxiliary burner mixing tube 3 is supplied with is from auxiliary burner fire hole 7 ejections of auxiliary burner lid 6.
Downstream at main burner mixing tube 4 has urceolus 8, and this urceolus 8 is arranged on the gap around the inner core 5.Urceolus 8 is by inwall 8a and outer wall 8b is two-layer consists of, and forms the ring-type that there is opening a top.Between the inwall 8a of urceolus 8 and the outer wall 8b gas distributing chamber 9 is arranged, this distributor chamber 9 be used for to around disperse main burner mixing tube 4 to spray mist.Above urceolus 8, the main burner lid 10 of forging and pressing copper is installed.Main burner mixing tube 4 and urceolus 8 and main burner lid 10 common formation main burners 2.
Described two flash holes 17,18 are used for the flame of auxiliary burner 1 is passed fire to main burner 2, that is: when only lighting auxiliary burner 1, and Once you begin to main burner 2 feed fuels combustion gas, just can be to the internal feed fuel of protuberance 14.Like this, can form the flame that auxiliary burner fire hole 7 transmits in the 1st flash hole 17, next, can form to the 2nd flash hole 18 at once and pass fire, 11 pass fire from the 2nd flame flash hole 18 to the main burner fire hole.
In addition, as shown in Figure 2, at same circumference 3 protuberances 14 are set, and have fixed intervals in the upper wall portions 13 of main burner lid 10.On each protuberance 14, offer the flash hole 17,18 that diametric(al) a pair of and main burner lid 10 is interconnected.Like this, just can pass fire at 3 o'clock, conscientiously realize the biography fire igniting between auxiliary burner 1 and the main burner 2.
And as shown in Figures 2 and 3, protuberance 14 when wide as horizontal stroke with the circumferencial direction of main burner lid 10, forms following shape, that is: the width of the longitudinal wall part 15 of auxiliary burner fire hole 7 is less than the width of the longitudinal wall part 16 of main burner fire hole 11.Because protuberance 14 is this kind shape, as shown in Figure 3, the aperture area of the 1st flash hole 17 is less than the 2nd flash hole 18.By such setting, the 2nd flash hole 18 has possessed larger aperture area, forms fully strong biography fire flame, therefore, can pass the fire igniting to main burner fire hole 11 rapidly and exactly.In addition, because the aperture area of the 1st flash hole 17 is less, form smaller biography fire flame, therefore, the flame of the 1st flash hole 17 can produce harmful effect to the flame that forms on the auxiliary burner fire hole 7 hardly, for example can prevent that auxiliary burner fire hole 7 from producing yellow fire, makes auxiliary burner 1 carry out good burning.
Through lathe processing described later, machine away part thick on each longitudinal wall part 15,16 of protuberance 14 and form two flash holes 17,18, as shown in Figure 4, each flash hole 17,18 downside cutting face 19, the inclined plane that 20 formation are tilted laterally.The upside cutting face 21,22 relative with this inclined plane (downside cutting face 19,20), its outer rim 21a, 22a are positioned at the outside with respect to downside cutting face 19,20 inner edge 19a, 20a, and the part of the top 14a of protuberance 14 forms outstanding.As shown in Figure 3, when seeing protuberance 14 from the top, the inner space that can not expose protuberance 14, even when cooking directly over the protuberance 14 drippage boil overflow, can prevent that also juice from flowing directly to the inside of protuberance 14, simultaneously, drop onto on each flash hole 17,18 even boil overflow, also can flow to the outside of protuberance 14 along the downside cutting face 19,20 that tilts, and can not flow in the protuberance 14.
Two flash holes 17,18 are processed to form as follows by lathe, that is: at first with reference to Fig. 2, with the center of main burner lid 10 as cutting axis of rotation X, rotation main burner lid 10.Be actually by the fixing periphery of main burner lid 10 of the lathe snap close that do not show on the diagram, make the axis of rotation of snap close and main burner cover 10 center and be consistent.On Fig. 2 and Fig. 3, allow respectively cutter T1, T2 enter track R1, R2 (with reference to Fig. 4) that the hypothesis line represents.As shown in Figure 4, like this, cutter T1, T2 machine away thick part on each longitudinal wall part 15,16 of protuberance 14, form each flash hole 17,18.And, according to the shape of cutter T1, T2, except the top 14a of protuberance 14, the longitudinal wall part 15,16 that is positioned at the below that can machine away, thereby a part that makes top 14a is given prominence on each flash hole 17,18 top, as upside cutting face 21,22, is highly susceptible to processing.
In this example, 3 protuberances 14 respectively have a pair of flash hole 17,18.As shown in Figure 2, just can form flash hole 17,18 at 3 protuberances 14 because 3 protuberances 14 on same circumference, are done a lathe processing, can very effectively offer flash hole 17,18.
In addition, as shown in Figure 3, protuberance 14 is with the circumferencial direction of main burner lid 10 during as width, forms the width of longitudinal wall part 15 of an auxiliary burner fire hole 7 less than the shape of the width of the longitudinal wall part 16 of main burner fire hole 11.According to this shape, the cutting of the longitudinal wall part 15 of the auxiliary burner fire hole 7 of cutter T1 end is apart from the cutting distance of the longitudinal wall part 16 of the main burner fire hole 11 that is shorter than cutter T2 end.Therefore, the aperture area of the 1st flash hole 17 is less than the aperture area of the 2nd flash hole 18.
Because each flash hole 17, the 18th forms through lathe processing, such as Fig. 1 and shown in Figure 4, even protuberance 14 does not project upwards from the extreme higher position 13a of the upper wall portions 13 of main burner lid 10, also can form at an easy rate each flash hole 17,18, like this, protuberance 14 does not highlight, and can obtain good appearance effect.
In described example, as optimal example, as shown in Figure 3, and being shaped as of protuberance 14, the width of the longitudinal wall part 15 of auxiliary burner fire hole 7 is less than the width of the longitudinal wall part 16 of main burner fire hole 11, and still, the protuberance shape among the present invention is not limited only to this.For example, the shape that the width of the longitudinal wall part of the width of the longitudinal wall part of auxiliary burner fire hole and main burner fire hole is almost equal that is: can be the elliptical shape (without diagram) of plan view.
In addition, in described example, as optimal example, as shown in Figure 4, the part of the top 14a of protuberance 14 is given prominence on each flash hole 17,18 top, is shown as each flash hole 17,18 upside cutting face 21,22.In addition, as shown in Figure 5, also can make the part of top 14a of protuberance 14 outstanding, machine away the upper part of the longitudinal wall part 16 of the upper part of longitudinal wall part 15 of auxiliary burner fire hole 7 and main burner fire hole 11, form each flash hole 17,18.
Claims (3)
1. main and side burner, this main and side burner have the auxiliary burner lid and around the circular main burner lid of auxiliary burner lid, the surrounding wall portion of described auxiliary burner lid has a plurality of auxiliary burner fire holes, and there is the interval in this auxiliary burner fire hole at circumferencial direction; The surrounding wall portion of the periphery of main burner lid has a plurality of main burner fire holes, and there is the interval in this main burner fire hole at circumferencial direction, it is characterized in that,
The upper wall portions of the main burner lid between main burner fire hole and auxiliary burner fire hole projects upwards the protuberance that hollow is set, and the inside of the protuberance of this hollow is communicated with the main burner fire hole; With the center of main burner lid as the cutting axis of rotation, rotate this main burner lid, machine away the wall thickness part of the longitudinal wall part of the longitudinal wall part of auxiliary burner fire hole side of this protuberance and main burner fire hole side by lathe processing, offer the flash hole of this protuberance inside of a pair of connection at this protuberance
This a pair of flash hole is along the circumferential openings of described main burner lid, and along the protuberance that circumferentially extends through described hollow of described main burner lid, and the flash hole of described auxiliary burner fire hole side is on the same circumference of described main burner lid, on the other hand, the flash hole of described main burner fire hole side is on another same circumference of described main burner
With the circumferencial direction of described main burner lid during as width, described protuberance forms the width dimensions of longitudinal wall part of a described auxiliary burner fire hole side less than the shape of the width dimensions of the longitudinal wall part of described main burner fire hole side,
The aperture area of the flash hole of described auxiliary burner fire hole side is less than the aperture area of the flash hole of described main burner fire hole side.
2. main and side burner according to claim 1 is characterized in that,
Each flash hole of described protuberance forms the inclined plane that tilts towards the outside of this protuberance downwards in the downside cutting face that the longitudinal wall part of this protuberance forms.
3. main and side burner according to claim 1 is characterized in that,
The inner edge of each flash hole of described protuberance in the downside cutting face that the outer rim in the upside cutting face that the longitudinal wall part of this protuberance forms forms than the longitudinal wall part of this protuberance will more lean on the outside of this protuberance.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007279059A JP5182745B2 (en) | 2007-10-26 | 2007-10-26 | Parent and child burner |
| JP2007279059 | 2007-10-26 | ||
| JP2007-279059 | 2007-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418955A CN101418955A (en) | 2009-04-29 |
| CN101418955B true CN101418955B (en) | 2013-05-29 |
Family
ID=40629870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810166563 Expired - Fee Related CN101418955B (en) | 2007-10-26 | 2008-10-17 | Main and side burner and production method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5182745B2 (en) |
| CN (1) | CN101418955B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5184571B2 (en) * | 2010-04-07 | 2013-04-17 | 株式会社コメットカトウ | Gas stove |
| CN104501155A (en) * | 2014-11-24 | 2015-04-08 | 吴江市格瑞福金属制品有限公司 | Collar-shaped efficient energy-saving cooking range |
| CN107461744B (en) * | 2017-09-28 | 2023-01-31 | 广东美的厨房电器制造有限公司 | Fire cover and burner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3217703B2 (en) * | 1995-09-01 | 2001-10-15 | 株式会社東芝 | Magnetic device and magnetic sensor using the same |
| CN2486852Y (en) * | 2001-03-28 | 2002-04-17 | 上海山富燃气用具有限公司 | Burner of household gas range |
| CN2615509Y (en) * | 2003-04-17 | 2004-05-12 | 徐剑光 | Domestic gas stove burner |
| JP2004218875A (en) * | 2003-01-10 | 2004-08-05 | Paloma Ind Ltd | Parent-child burner |
| CN2859235Y (en) * | 2006-01-06 | 2007-01-17 | 吴启瑞 | Improved burner of gas cooker |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424260Y2 (en) * | 1987-04-30 | 1992-06-08 | ||
| JPH01181009A (en) * | 1988-01-13 | 1989-07-19 | Rinnai Corp | Burner apparatus |
| JP2506954B2 (en) * | 1988-07-06 | 1996-06-12 | 松下電器産業株式会社 | Gas stove |
| JP2911944B2 (en) * | 1990-01-24 | 1999-06-28 | パロマ工業株式会社 | Parent and child burner for gas stove |
| JP3459858B2 (en) * | 1995-11-10 | 2003-10-27 | パロマ工業株式会社 | Method of manufacturing burner burner and burner burner manufactured by the method |
| JP3777690B2 (en) * | 1996-12-19 | 2006-05-24 | 松下電器産業株式会社 | Gas stove |
| JP3277149B2 (en) * | 1998-01-10 | 2002-04-22 | パロマ工業株式会社 | Manufacturing method of stove burner |
| JPH10140U (en) * | 1998-01-10 | 1998-06-26 | パロマ工業株式会社 | Manufacturing method of stove burner |
| JP3701488B2 (en) * | 1999-01-06 | 2005-09-28 | リンナイ株式会社 | Gas burner and method for producing the same |
-
2007
- 2007-10-26 JP JP2007279059A patent/JP5182745B2/en not_active Expired - Fee Related
-
2008
- 2008-10-17 CN CN 200810166563 patent/CN101418955B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3217703B2 (en) * | 1995-09-01 | 2001-10-15 | 株式会社東芝 | Magnetic device and magnetic sensor using the same |
| CN2486852Y (en) * | 2001-03-28 | 2002-04-17 | 上海山富燃气用具有限公司 | Burner of household gas range |
| JP2004218875A (en) * | 2003-01-10 | 2004-08-05 | Paloma Ind Ltd | Parent-child burner |
| CN2615509Y (en) * | 2003-04-17 | 2004-05-12 | 徐剑光 | Domestic gas stove burner |
| CN2859235Y (en) * | 2006-01-06 | 2007-01-17 | 吴启瑞 | Improved burner of gas cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101418955A (en) | 2009-04-29 |
| JP2009109036A (en) | 2009-05-21 |
| JP5182745B2 (en) | 2013-04-17 |
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