US2637378A

US2637378A - Burner structure

Info

Publication number: US2637378A
Application number: US174331A
Authority: US
Inventors: Borde Josef
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-07-20
Filing date: 1950-07-17
Publication date: 1953-05-05
Anticipated expiration: 1970-05-05

Description

y 5, 1953 J. BORDE BURNER STRUCTURE Filed July 17, 1950 I N V EN TOR. um; ea/m:-

Patented May 5, 1953 BURNER STRUCTURE- osetfior a Zurich, Switzerland Application July 1'7, 1950, Serial Nn, 174,331

In Switzerland July- 20, 1949 1 8 Glamor This invention relates to burner structures, in particular to burners for kitchen and similar ap pliances which may even be used outdoors or the held (for camping or-milit-ary purposes) It is one or the primwa-y-objects of this'invem tion to provide-means affording marked eifioiency and safe operation of a burner of the aforesaid type.

It is another object of the present invention ensuring increased speedin the operation-of the burner and accurate regulation of the name thereof.

Still another objector the invention is to provide means facilitating closure of the nozzle device of the burnerin a rapid and safe manner and duringopera-tion of the burner, if desired.

It is a further object of the invention to provide means conducive to a strong and durable bu-rner structure which may be permanently joined to the fuel housing and forms a unitary construction. with the nozzle or jetdevice.

Further objects of the present invention. im elude improvements in simplicity and economy of construct-ion, great adaptability to different fields of use andreduction of the number of parts of which the. bur-neicon sists, so that the same takes up a minimum ofspace, becomes compact, may be readily installed and enhances-its-saleable and commercial possibilities.

Still another object of the invention is to provide means contributing to considerable imp-rovement; in burner structures, the new burner being light in weight, cheap to manufacture and being eas y s mb r-1 and disas mb ed..-

With the above and other objects in View, the invention will hehereinafter more fully described and the combination and arrangementof parts will be shown in the accompanying drawing and pointed out in the claims which form part of the specification.

In the drawing:

Fig, 1 a side view of the, burner gin odying the in ntio a pa f the burn oil. in s tion:

Fig, 2 is a fragmentary top plan of the, burner housing eq pp d with a nozzle or

jet Q

3 and 4 show on an enlarged scale two different fragmentary longitudinal sectional views of th nozzle jet device with. thelower end of the Jet needle.

Fi 5. is, a gmentary top pl v ew tak along the line v v f Fig. 1 sho the s a member supporting the jet needle.

Fig. 6 is a longitudinal sectional view of the plate member and needle, taken along the line W LVI. oi Fig, 5-

B rerr ne now particu arly to throw me, re. is shown a burner b dyins the volition,v wh ch prov ded with a housin 1 I is preferably of cylindrical form. Adjacent one end of said housing there is disposed a spiralshaped tube body 2 which is oval in crossasection and which extends with its

ends

3, 3 through suitable openings in, the wall of housing I into the interior of the latter. At the location of penetration of the

tube ends

3, 3" the latter are affixed to. the housing wall, as by soldering, so as to obtain a-fiuid-ti-ght joint thereat.

The spirally shaped portion of the tube body 2 supports a nozzle body 4 whose nozzle opening 5 communicates with the interior of the tube body 2. Above nozzle body 4 there is afiixed in any appropriate manner to the tube :body 2 and between oppositely disposed convolutions or coils of the latter a plate member I provided with a. plurality of openings 6. This plate member 1 has'in its center athreaded opening or perforation. Through this opening 8 threadedly extends a jet needle orpin 9, which supports at its upper end a slightly conical "disc; element having spider arms Illa.

This jet needle 9 has a conical portion H which coacts with the suitably shaped end of nozzle opening 5 and which is adapted to close the "latter when the needle 9 threadedly engages plate 1- at. opening 8 and is rotated by means of arms woof disc H).

The lower end portion of the jet needle 9 is provided with a substantially flat end l2 rectangular in shape (Figs. 3 and 4), the width of said flat .end being somewhat smaller than the diameter of the nozzle opening 5, so that when needle 3 is turned or rotated, the relatively sharp edges of needle end l2 will contact and scrape the inner well do of the nozzle opening 5, thus freeing the same. from any adhering impurities or-fuel waste deposits.

ordfitto oneratethe burner, needle .1 is first m ved. in upward d rection and relative to plate 1-, hereby the conical needle, portion :1 I will pro- :vide arr de ermined pace. a he ozz pe ing, flfhereaiter, any suitable liquid fuel, as for e so f av is all wed to oooumulatew ththe-cu ed r c ss or cums aped part-H.0 5 the Wa l; o th h sing vl h ch is lo ed b low the pira oo lut ns of th tube 2 a d t e gn t d, T e u e body 2 s thus heat d and ue to convection of heat through the metal of the u e vbody Zr e'f el within bend po t ons 3, 3 o th i u ei llbe al o hos ed and s biecte t tas fi at oni el gas hen s a t to fl th ough the tube 2 o n zzle 4 o h re theeese se os and i there ignited by the burr-1m name at ,th's .part o the bu ner. Due t s adi y n ea in temperature of the tubular body 2 caused by contact with the flame, o sifica i o the liq fuel present n. he t e ends. 3 3 wi l be. continuand? a celerated nd exp d ted The ga scap ng fr m th en of nozzl 4 passes from below par y hrough he p nin s 6 of plate I and will also be diverted partly by the curved underface of plate 1 in outward direction, so that the created flame of the burner will assume a certain width, thus always remainin in contact with both convolutions or coils of the tube body 2, which, consequently, become considerably heated, so that the ends 3, 3' of the tube body which are in contact with the fuel in the housing will maintain and continue gasification of the fuel.

The gas which ascends through the holes or openings 6 of the plate I is collected or caught within the upper disc element [0, so that the gas upon impingement upon disc or plate surface is intimately mixed with air and will be completely burned.

A wire piece [4 having hook-shaped ends 15 can be brought into engagement with notches l6 of disc plate [0, so that the latter may be turned together with jet needle 9 which can be adjusted in its position relative to opening even during operation of the burner. Conical needle portion ll may thus close more or lessthe aforesaid opening whereby the intensity of the flame may be easily regulated.

The cross-section of the tubular body 2 is oval or elliptical, the body being at least partly flattened, to obtain a relatively narrow crosssection for the passage of the fuel and further intimate contact of the fuel gas when it ascends from the ends 3, 3' of the tube body 2 with the heated walls of the latter. In this manner, complete gasification of the fuel takes place and only fuel, which is entirely trans formed into gas reaches carburetor nozzle 4.

In the

ends

3, 3 of the tubular body 2 there are provided a plurality of perforations I! through which in accordance with the consumption or delivery of fuel from housing I, air entering nozzle 4 may flow into said housing. The end wall [8 of the cylindrical housing extends at both sides beyond said housing (see Fig. 2) so that the latter cannot be tipped or tilted when in position of operation.

A wire or like stirrup [9 held on and coiled with its end around housing I may be employed as a handle for manipulating the burner or to place the latter in operative position within a cooking utensil or any other suitable appliance.

It can thus be seen that there has been provided in accordance with this invention a compact and efficient burner structure for liquid fuel to be gasified, said burner being characterized by a tubular body terminating in two legs having open ends, said tubular body incuding coil means extending intermediate said two legs, and a jet or nozzle device seated on said coil means and in communication with the interior of said tubular body, said legs being adapted to extend into a fuel supply housing, whereby said open ends establish connection between said fuel supply housing and said jet device.

While one embodiment of the invention has been shown and described, it will be easily understood that the same is capable of modification without departure from the general scope and spirit of the invention as defined in the claims.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. A burner structure for gasifiabe fuel comprising a housing adapted to contain said fuel, a tubular body seated on said housing, a nozzle arranged on said tubular body, said tubular body terminating in two end portions extending into said housing and connected with the latter whereby the interior of said housing communicates through said tubular body with said nozzle, needle means in operative connection with and movable relatively to said nozzle, a plate member supporting said needle means and guiding the same, said plate member being provided with a plurality of openings for diverting fuel gas emanating from said nozzle, and an end disk affixed to said needle means above said plate member and forming bafiie means against which said fuel gas may be impinged for intimate mixture with air, whereby a combustible air-fuel mixture for igni tion is constituted, said end disk including arms, said arms being rotatable to actuate said needle means and to move the same through said plate member and relatively to said nozzle.

2. A burner structure according to claim 1, wherein said tubular body includes a spiralshaped portion, which is positioned intermediate said end portions of said tubular body, said housing being provided with a recess for engagement with said spiral-shaped portion.

3. A burner structure according to claim 2, wherein said nozzle is arranged for support on said spiral-shaped portion and communicates with the interior of same.

4. A burner structure according to claim 1, wherein said openings of said plate member are concentrically arranged with respect to said needle means, to thereby intensify diversion of fuel gas emanating from said nozzle.

5. A burner structure according to claim 1, including a rectangular-shaped end portion connected to said needle means and adapted to engage the inner wall of said nozzle when said needle means is rotated.

6. A burner structure according to claim 1, wherein said end portions are provided with perforations to facilitate contact of said tubular body with a larger surface of said fuel when contained in said housing.

7. A burner structure according to claim 1, wherein the cross-section of said tubular body is oval-shaped.

8. A burner structure according to claim 1, wherein said tubular body includes a plurality of coils extending in a horizontal direction with respect to said end portions and seated on said housing.

JOSEF BORDE.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 56,530 Child 1 July 24, 1866 270,690 Ostlund Jan. 16, 1883 386,534 Goverts July 24, 1888 390,660 Gill et al. Oct. 9, 1888 524,093 Niemczik Aug. '7, 1894 689,785 Braun Dec. 24, 1901 1,281,056 Nash Oct. 8, 1918 1,299,263 Tester Apr. 1, 1919 1,469,714 Broch Oct. 2, 1923 1,664,410 Greenwald et al. Apr. 3, 1928 1,673,119 McKesson June 12, 1928 FOREIGN PATENTS Number Country Date 5,803 Great Britain of 1892 42,244 Sweden Mar. 28, 1917 502,043 France Feb. 12, 1920 171,574 Great Britain Nov. 24, 1921 Norway Nov; 2. 1942