US882611A - Bunsen burner. - Google Patents

Description

NIO. 882,611. PATENTBD MAR. 24, 1908.

G. BARTHEL'.

, BUNSEN BURNER.

lJuPL'ImTIoNFILED sBPT.15.19'os.

/ d/n yen fam/f andlaterally deflected without the body of the mixin l deviatin quantities of vapor and air form mout n n My invent1on1s lustrated 1n the accom` vaporizer surrounding the mixin Y, 3 conducts lthe vaporized fuel in well known yUNITED STATES PATENT. oFFIcE.

,I GUSTAV BAMHEL, or DRESDEN, GERMANY.

BUNSEN BURNER.

' lTpo all whom it'may concern:

" Be it known that I,'GUsTAv BARTHEL, a s'ub'ect of the yGerman Emperor, and residing jat` residen7 Germany, have invented certain I 5' new and useful' Improvements in Bunsen fiurners, of which the following is a specifica- 'tion`.`

' The present invention relates to a Bunsen yburner'for uid fuels, for producing an extremely'hot `ame,`resembling that of a blowpipe or bellows. In the new burner at the `periphery or Aata portion thereof, of the jet of vaplorizedfuel enteringl under hi h pres- 'sure t with air, particlesrof .the gas are caught up the jet being aected. This deviating quantity of vapor and air is formed into a flame, which serves to keep the main jet of vapor issuing from the mixing 'tube in a constant state of ignition. To attain this object the mixing tube is slightly constrictedby means of an internal collar, ali a neck or the like; or a cap is pushed over t e mixing tube, hav-V ing an exit which is smaller than the mouth of the tube. In front of this constriction of tube erforations are .the wall o the tu e, through whic are forced the gaseous particles which are prevented 30 from freely leaving the mixing tube.

Around the mixing tube I prefer to locate \also a, chamber having erforated walls, into which .there enters vt e gaseous mixture' forced through the wall of the mixing tube. After ignition of the burner these laterally an aux' iary flame which unites with the main flame. To aid in forming the auxiliary flame I prefer to' locate the vaporizer concentrically with the mixin tube, in such manner that the auxiliary arne rushes directly throu h the front wall of the vaporizer at the 1I of the tube.

Ipanying ,drawlin'g, in which Figure 1 shows a Bunsen burner havin `a ytu e.

Figs. 2-'4 show in section three ifferent' forms of4 constricted lmixing tubes, which- Inay be employed. Figs.. 5-7 show like 'vlews of mixing tubes provided with a cap. 1 isA the ,ipe eeding fuel fromzthe reservoir below'an coiled so as to resent a s iral 2, rthe convolutions of whic lie close y one against the other. From the coil 2 the pipe el mixing chamber and mingle therein f rovided in Specification of Letters 'Patent'. l' PatentedMarch 24, 1908. Applcationled September 15, 1906. Serial No. 834,769.V

manner to the-nozzle or like device 4. O posite the latter is located the mixing tu e 5, held in `place by two sockets 6, 7 which may lie inside, or be pushed over, the coil 2. The front socket 7 is perforated asat 8 t o admit of the fla-me, burning in the interior of kthe tcoil. 2, which constitutes the vaporizer,

passing out through it. 9 is al clam ring which serves .to separably connect t e assembled parts of the burner.4

The mixing-tube-consists ofthevcentral tube 5, perforated in any suitable manner at` 10. The mouth of the tube 5 is lconstricted,` for instance by means of an internal collar 1 1 (Figi 2), a lip'12 (Fig. 3) or a neck 13 (Fig. 4) or by means ofa cap 14 (Fig. 5) of any desired form, the crownof. which is so sha ed at 17, and if desired, also in the crown at 18,

so that when the burner is i nited an annular flame is formed at the hea of the cap also.

The perforations in the mixing tube being l i of greater capacity than the exit openings from the chamber surroundingsaidv tube, the

gaswill issue from said exits under a pressuregreater than if the erforations and exit openings were of equa capacity.

The burner operates as follows The fuel is fed to the vaporizer2 in well known manner. The vapor generated rushes out at the nozzle 4 and mto the mixing tube 5, drawing in air at the' same time in the -manner of an injector. The larger the ycross-section of the mixing tube and the smaller the orifice in the nozzle 4, the larger the quantity (up to a certain limit) of air drawn into the tube 5 by` the gas jet. Owing, to the constriction of the tube 5, and, to the apertures in its walls, particles of the gaseous mixture are, as already4 mentioned, caught up at the periphery of the gas jet and conducted either laterally into a chamber, or directl into the vaporizer casing. These lateral y diverted gaseousparticles form, after ignition of the burner, an auxiliary flame, which serves in the first placefor heating the vap'orizer, and secondly, after it has left the apertures 8 in 1 the vaporizer casing, for continuous ignition,

that is tovsay, for maintenance of the vmain iiame, for which the gas jet iiows out of the mixing tube with undiminished velocity. The auxiliary flame is aided inkeeping the main iiam'e continually ignited, by the annular flame burning at the perforations 18 at the front of the chamber.'

What I claim is :L 1. In a Bunsen burner, a mixing tube provided with' 'perforations and a `constricted exit opening, causing peri heral particles of gas to deviate' through sai vperforations, and 'a vaporizer surroundlng said mixlng tube,

the space betweenthe tubel and'vaporizer forming a chamber to receive said d1vertedgases, said chamber at its exite'nd having openings for the issue of the diverted gas which, when ignited, forms an auxiliary flame for heating the vapori'zer, substantially.

. as and for the purpose set forth.

2.'A Ina Bunsen burner, a mixingtube provided With perforations and a constricted 'exit opening, causing peripheral particles of gas to deviate through said perforations, and

. a vaporizer consisting of a plpe coiled around mixing tube, said chamber having openings at its exit end Wherev the ignited gases form an 'auxiliar flame for heating the vaporizer, substantiallT 3. In a Bun'sen burner a mixing tube provided with a' constricted gas out1et,'a va orizerinclosing the same and two sockets c osing the space between the vaporizer and the mixing tube and'supporting the latter, sub- 'the mixing tube and forming a chamber for receiving the gases thus -diverted from the y as and for the purpose set forth.

stantially as and for 'the purpose set forth.

4. Ina Bunsen burner, a mixing tube p ro- `videdv with p'erforations and a constricted gas outlet, a vaporizer inclosing the same, sockets closing the space between the vaporizer and the mixing tube and supporting the latter, the front of which sockets 1s provided with a ring of perforations,gall substantially as and for the purpose set'forth In testimony whereof I aiiix my signaturev in presence of two Witnesses.

l GUSTAV BARTHEL.

Witnesses:

CHEMNITZ H. SoinLLnvG, PAULl ARRAS. Y

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