US1646816A - Oil burner - Google Patents

Description

A. E. GOODSPED GEL BURNER Filed June S, 1192A VEL Patented Oct. 25, 1927.

UNITED STATES rArENi orifice'.

DL BURNER.

pplcration filed' J une 6,

`In another application of the presentapplicant forLetters Patent of the United States, Serial No.V 655,386, filed August 1,923, there are shown and described certain improvements in oil'burners. In that application a requirement was made on the part of the `Commissioner of Patents for di-` vision on the ground that the claims were dravvn to several independent inventions. The present application is made primarily for the purpose of complying with that requiremeiit and for covering one of such in dependent inventions, butin the timewhich elapsed between the filing of said earlier application and the making of such requirement for division,.the construction which formed the Subj ect matter of the said earlier application as filed was further developed and perfected and the present application, therefore, While covering the original inde-k pendent invention, is based upon the perfected construction and is addressed in part to the perfected features. The invention which is Vthe subject of this application, is

concerned particularly with the construction of the burner itself, the control of the supply of oil and Water to the burner being covered iii another application Serial` No. 718,229 tiled J une 6, 1924.

In the burner which forms the subject of the present application, as in the burner which was shown and described in said application Serial No. 655,386, the oil is delivered at the burner tip, not in a vaporized forni, as in many oil burners, but in a liquid forni and is taken up, carried on, sprayed and vaporized by a surrounding envelope of superheated steam. This result requires a certain construction of the burner proper, as will be described hereinafter. Furthermore, the maintenance of constant regulated pressure under which the oil is discharged is essential to the control of the temperature and' to perfect combustion and forthe accomplishment of these purposes it has been found desirableto do away with the means for adjusting` the steam orifice, as described in said application Serial No. 655,386, and to provide a stabilizing valve through which any excess of superheated steam developed in the generator, instead of being discharged from the generator at a point Where it Will mingle With the hot products of combustion at the tip `of the flame, is returned to the burner nozzle Where it is added to the steam directly supplied thereto, in propera 1,924. Serial No. 718,230.

tion to the consumption of oil and, through the resulting tendency to increase Ofv teinperature and pressure, reacts through the pressure controlled oil and Water supply to cutdoivn the supply of both oil and vvater, thereby maintaining the internal temperature in the combustion chamber and the pressureiin the generator substantially constant. The invention will be more fully described hereinafter With reference tothe accompanying drawing, the'sin'gle figure of lwhich shows, partly in elevationian'd partly intesi@ scribed in said application Serial No. 655,-

386, with a conical seat c2 to receive a conical liner Z which in tuin is formed With a conical seat CZ to receive a conical member e which supports the burner tip e. The conical liner is channeled as at CF and the burner support is channeled as at e2 to permit the oil to be delivered to the orifice e3 of the burner tip which, as will be observed and as is necessary to the proper delivery of the oil, is slightly higher than the plane of the steam orifices by which it is surrounded as hereinafter described, thus permitting the discharge of oil at the orifice e3 in liquid form and the complete filling of the co1iducting channels, to the orifice e?, withV oil in liquidform. The liner d, flanged as shown at (Z4, may be secured to the base c by screwY bolts not shown, and the burner tip supporte-r e may be secured to the liner by screw bolts et and so held in place. rThe burner tip supporter e may also be provided with a removable plug e5 for convenience in manufacture and in cleaning out. It Will be observed that the burner tip e has an ex? ternal diameter less than the internal diameter of the bore of the sleeve extension of the liner (l, so as to form a chamber (ZG about the burner tip c for the admission of superheatcd steam from the generator, to be described. Upon the sleeve extension of thel liner d is threaded a sleeve f conical at its llO i upper end to ,form at f an annular orifice surrounding the burner tip e3 but at a slightly loWer level. In the embodiment of the invention shown in the application Serial No. 655,386,7tlie corresponding sleeve was made adjustable by hand, for the purpose of varying the steam orifice, but in the present construction this is unnecessary and when the burner parts have once been as- Sembled and properly adjusted, further adjustment of the `,sleeve f is unnecessary. The

. sleeve j", asvvill be observed, forms a continuation of the chamber Z6 about the burner tip- Y j Also supported upon the sleeve fand spaced therefrom so as to form a. chamber f2, is a sleeve f3 also conical at its upper end and forming van annular Vsteaniorifice f4 surrounding the oral orifice e3 and the primary stemj, the chamber f2 being supplied with v excess steam from'the generator as hereinafter described.

Water, under constant'head as described in saidwapplication Serial No. 718,229, filed J une 6, 1924 issupplied through a pipe g to a 'channel g2 in one of the radial lugs or (arms of 'thebase c, whence it is delivered through a pipe g3 to the generator it. Super# `heated steam from the generator It is deliv- `ered through a'pipe la', Which rises Within the generator nearly to the top thereof, and a pipe h2 to a channel h3 in oneof the radial 'lugs or arms of the base c, whence it is delivered through a channel 7a4 to the chamber d6 about the burner tip e. In the embodiment ofthe invention shown in the application Serial No. 655,386, any excess of steam,

developed andV superheated in the generator L, is delivered into an annular channel about thewupper part ofthe chimney sleeve Z,

whence it is allowed to mingle with the hot products of combustion as they issue through Vopenings beneath the refractory top o. In the present instance, hovvever,.it has 'been found desirable, in order to maintain a substantially uniform internal temperature Aabout the generator, and a substantially con-VV stantpressure Within While providing a safety outlet for the excess steannto return such excess steam to a point vvhere`it may be mingled With the steam from the primarv steam orifice f and'with the oilfiom the oil orifice e3. Accordingly, the excess'steam is conducted Afrom the channel h4, through a suitable connector 71,5, to a stabilizing valve 71,6 vwhich receivesthe steam through an inlet eh?, upon which rests a spherical valve body ha, 'the-Weight of which may be supplemented as desired by a Weight it? supported in the closed weight chamber 71.1. From the valve chamber such'steam as vpasses the valve hs is .delivered ,through a suitable conductor la to .the chamber f2 which terminates in the secondary, annular steam orifice f4 about the primary steamv orifice f and the oil orifice,

- f3. Thereby excess pressure Within the generator maybe relieved through the stabilizing valve lr6 .and the excess steam is delivered tothe burner nozzle, through the secondary steam orifice f4, and there mingles With the steam through the primary steam orifice f" and with the oil from the oil orifice Ve3. The

vsurplus steam therefore supplies steam in `proportion to the consumption of oil and, with the oil, tends toV increase the internal temperature belowthe generator and therelfore the pressure Within the generator. Through the pressure actuated devices for controlling the flowV of yoil and iwater, the flow of each is cut doivnand 'the' tendency toward a rise of temperature belovv the generator and of the pressure in the generator `is counteracted andA substantiallyk uniform temperature is maintained under given conditions.- i j l It Will be understood that changes in details of construction and arrangement canbe inade to suit differenti conditions of use and that, except as pointed out in the' claims, the

' invention is not restrictedto the particular "stabilizing valve, to conduct steam from the generator to the second named steam chamber.

` i 2. In an oil burner, the combination of a burner tip, means to supply oil thereto, a steam generator, a sleeve forming a steam chamber about the burner tip and having` an annular orifice about the burner tip, `a second sleeve forming a second steam chamber about the firstmentioned sleeve and Ihaving' an annular orifice, means to conduct steam from the generator to the first mentioned steam chamber and other means, including Y a stabilizing valve, to conduct steam, from vthe generator tothe second namedfsteain chamber, said stabilizing valve comprising a chamber connected on one side to the genei`- ator and on the other side tothe second named steam chamber and a Weighted valve body to control the passage of steam therethrough.

This specification signed, this 3d dayrof June, A. D. 1924. s

- ARTI-IURB. GOODSPEED.

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