US725003A - Gaseous-fuel burner. - Google Patents

Description

PATENTED APR. 7,- 1903.

R. J. MINER.

GASEUS FUEL BURNER. APPLIGATION FLBD AUG. 9. 1902.

2 SHEETS-SHEET l,

N0 MODEL.

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TH: nomas virtus co, PHoT-Llmo.. wAsHmcrmn. n. c.

No. 725,003. PATENTED APR. '7, l903. R. J. MINBR.

GASEOUS FUEL BURNER.

APPLICATION FILED AUG. 9, 1902.

N0 MODEL. 2 SHEETS-SHEET 21.

w/TNESSES.- /N VEA/Tof? 'NITED STATnS ATnNr ROBERT J. MINER, OF GREENWICH, CONNECTICUT, ASSIGNOR OF THREE-FOURTHS TO WILLIAM S. JESSUP AND W. L. TUCKER,

OF NEW YORK, N. Y.

eAsEous-FUEL. BURNER.

SPECIFICATION forming part of Letters Patent No. 725,003, dated April 7,1903.

Application filed August 9, 1902. Serial No. 119,077. (No model.)

To ycl/ZZ whom t may concern.-

Be it known that I, ROBERT J. MINER, residing at Greenwich, in the county of Fairiield and State of Connecticut, have invented a'new and Improved Gaseous-Fuel Burner, of which the following is a specification.

My invention relates to that type of gaseous-fuel or kerosene-oil burners fed from a gaseous-vapor supply common to all of the burners, and it primarily seeks to provide an improved burner' of the character stated of a simple and economical constructionespecially well adapted for generating steam on 1notor-vehicles and for such other purposes where gaseous fuel is employed for heating.

In its generic nature my invention comprehends a novel cooperative arrangement of generating means, a series of burners, a valvecontrolled gaseous-vapor-dischargin g member which forms a coperative partof the generating means, and a vapor-distributing cham ber or shell with which all of the burners are operably joined and provided with an inlet for receiving the vapor from the valve-controlled discharging member.

Myinvention also embodiesin its complete make-up a generator comprising anoutertube or shell and a hollow filler longitudinally movable within the outer tubular shell, which primarily serves to aid in maintaining the radiated heat on the inside of the tube or shell in close contact with the inner wall of the said shell, whereby to provide for quickly heating the said outer shell or tube and for keeping it in a uniform generative condition, said hollow filler also serving under certain conditions to act as a cleaner for removing soot or other incrustations or deposits from within the generating tube or shell.

Again, my present invention embodies a novel type of automatically-operating valve devices for controlling the intlow of the gaseous fluid and shiftable in reverse directions by the variable endwise fluid-pressure in opposite directions, whereby under ordinary luidpressure to control the feed of the fuel fluid and maintain it at a uniform predetermined low and under a reverse or vapor pressure to cut the flow of the volatile iiuid down to a predetermined minimum degree.

In its more subordinate features my inven- `hereinafter specifically referred to.

Vtion consists in certain details of construction and combination of parts, all of which will hereinafter be fully explained, and specitically pointed out in the appended claims, reference being had to the accompanying drawings, in which- Figure l is a longitudinal section, parts being in elevation, of my improved burner. Fig. 2 is an enlarged longitudinal section of the intake or oil-receiving end of the generating tube or shell and illustrates the automatically reversely-shiftable valve dgvices 41g. 3 is a cross-section on the line 3 3 of Fig. 2. Figs. 4 and 5 are similar views on the lines 4 4 and 5 5A of Fig. 2 looking in the direction indicated by the arrows. Fig. 6 is a detail vertical section of one of the burners. Fig. 7 is a horizontal section thereof. Fig. 8 is a longitudinal section of a slightly-modified form of burner. Fig. 9 is a horizontal section on the line 9 9 of Fig. 8. Fig. 10 is an inverted plan view of a burner-body formed .with three separate sets of burners, a separate feed for the central set of burners, and a single feed for the two outer sets of burners. Fig. l1 is a transverse section of the burner shown in Fig. l0. Fig. 12 is a detail view illustrating the arrangement of the main feed pipe and the valve equipped laterals for feeding the separate sets of burners in the construction of burner shown in Figs. lO

and 1l.

In all forms of my improved burner the same includes a shallow shell 1, of cylindrical or other desired shape, dependent on the particular use for which my burner may be desired. The shell l serves as a gaseous-vapor collector, and in the simplest form it has a single feed-pipe l, which is connected to the bottom plate 1X of the shell centrally thereof and communicates therewith,as clearly shown in Fig. 1, from which it will also be noticed the entrant end of the pipe l? is held adjacent to the ejector-,nozzle 3a of the vapor-feed pipe 3, which nozzle is controlled by a needle-valve 4., of the ordinary construction.

In the simplest form of my invention, as illustrated in Fig. l, the shell l is equipped with a series of burners, all of which communicate with the interior of the said shell llOO 1, from which all of the said burners are fed; but each of the said burners has a separate air-feed, as clearly shown. Each burner consists of a short hollow tubular member 5, detachably or rigidly joined with an outlet 1C in the top plate of the shell l, and the upper end vof the hollow member 5 terminates with an inwardly-projecting annular flange 5', the under edge of which is beveled upward and outward, as indicated by 5X, for a purpose presently explained. Within the member 5 is tted a pipe-section 6 of somewhat less diameter than the outer tubular member 5, into which it projects, and the said pipe-section 6 extends down through the shell l, is ixedly or d etachably connected with the bottom plate thereof, and joins with au air-aperture ld in the said bottom plate, as shown. The pipe 6, as will be best understood from Fig. 6, extends sufficiently close to the Walls of the member 5 to produce a narrow annular passage g for the outflow of the gaseous Vapor from within the shell l toward the tip or ignition endof the burner. The upper end of the air-pipe section terminates just under the flange 5a of the member 5, and the upper edge thereof is beveled, as at 6, in a plane parallel with the bevel 5X on the member 5, and the two beveled surfaces 5x 6x oppose each other in suchunanner as to provide a restricted annular' discharge-opening from which the gaseous vapor will be ejected toward the axial center of the air-pipe 6, and thereby provide a positive and uniform intermixing of the air and vapor at the tip or igniting end of the burner. This manner of ejecting the volatile fluid and intermixing it with the air is very advantageous, for the reason that there is practically no Waste of the volatile vapor on account of a non-mixing with the air or by reason of non-combustion, as the annular rim on the member prevents the volatile vapor from passing upwardly in a plane with the vertical directionof the air-current through the pipe 6 and the consequent waste of the fluid from spreading laterally from the burner. Furthermore, the [lange 5 on the member 5 acts as a baffle for properly deflecting the volatile vapor inward into the aircurrent that is drawn up through the pipe 6, and by reason of the inward inclination of the said flange and the restricted circular discharging-orifice being at a point some distance above the point where the gas is fed into the member 5 and disposed out of a vertical plane danger of the flame passing backward or following the fuel down the tube 5 and into the gas-holding shell is rendered impossible.

The vapor-feed pipe 3 connects with one end of the generating member 2, which extends horizontally over the burners and preferably over the central set thereof, and the said generating member consists of an outer tube 2a, to the inner end of which is connected a socket 2b, to which the discharge-pipe 3 is also joined, and the outer end of the said socket 2b is open, for a purpose presently ex'- plained.

8 designates a valve-casing which is detachably secured to the outer or entrant end of the tube 2a and is extended in the longitudinal plane thereof. By referring now more particularly to Figs. 2 to 5 it will be noticed the valve-chamber 8 has a nozzle ElLL for conveniently attaching thereto the oil-supply pipe, and at each of the opposite ends it has a semicircular Valve-seat, the one at the entrant end of the valve-chamber being designated X, and the opposing one at the discharge end of the said chamber is designated Y. The valve-seats X and Y are of semicir-v cular shape, whereby to properly coperate with the correspondingly-shaped ends 9% 9y of the shiftable valve 9, which is tloatably mounted within the chamber 8, and the said valve is of a length and diameter less than that of the chamber 8 and is automatically shiftable under varyin g fluid-pressures thereagainst from opposite directions. Under the ordinary adjustment of my improved burner the Valve 9 assumes a midway position to permit of the maximum flow of the kerosene or other Volatile fluid into the generating member 2. In operation should the fluid-feed pressure become excessive and greater than that of the gaseous or vapor pressure within the generatingv member 2 the Valve 9 will shift to bring its end 9y into engagement with the valve-seat Y, and thereby cut down the flow of oil into the generating-tube. As it is necessary, however, for the proper operation of my invention that the feed of the oil be not entirely cut off, the valve-seats X and Y are provided with radial grooves or channels X Y', as clearly shown in Figs. 2 and 4, and which are so arranged as to provide for a predetermined minimum feed of the oil under all of the adjustments of the valve 9. p

Byv providing a Valve mechanism as de` scribed a simple and effective means for controlling the feed of .the oil is provided when the feed-pressure is excessive, and for reducing the feed of the oil in case the vapor or gaseous pressure within the generating-tube becomes excessive-that is, greater than that of the oil-feed pressure against the valve 9 and in that event the end 9x of the valve moves into engagement with its opposing valve-seat X, and in consequence the oil-feed will be thereby reduced to the predetermined minimum llow.

The generating means also includes a hollow space-filler l0,y which consists of a tubular stem of somewhat less diameter than the tube 2, into which it is slidably projected through the open end of the union or socket member 2", and it is suspended within the said tube 2a and out of contact'with the inner walls thereof by a conical screw-plug 11, having a cap or flange llb to close the open end of the socket 2b, its screw portion being arranged to engage with an internally-threaded conical socket 10a, formed on the outer end IOO IIO

of the filler-tube 10, as clearly shown in Fig. l. The object in using a hollow filler for the tube 2 is twofold. First, it provides for concentrating the heat directly against the inner and outer surfaces of the tube 2, as the radiated heat within the tube 2"L is confined within the annular space between the filler and the tube 2a, and by reason of such concentration of the heat within the tube 2fL the fluid as it passes into the generator and is restricted in its passage therein by being confined within the annular space between the iiller and the tube 2 is more quickly converted into vapor than would be possible if it were free to circulate within the entire cross-sectional area of the said tube 2a. On the outer end ofthe filler lO is fitted a cappiece 12, the peripheral surface ot which is roughened or ream-faced, so as not to close off" the tube 2a from the feed, and the said cap-piece l2 when the burner is out of operation is utilized as a cleaner for scraping off the incrustations, soot, or other deposits which accumulate within the tube 2a, and such result is accomplished by pulling the filler lO out of the open end of the socket 2b and drawing the deposits within the tube 2n to its outlet 2K, with. which the pipe 3 connects, it being understood that during the cleaning operation the said pipe 3, with its attached parts, is disconnected from the tube 2.

In Figs. 8 and 9 I have shown a slightlymodiiied form of the burners, and in the said ferm the tubular extension (designated by 5m) is an integral part of a shell or chamber portion lm, and the chamber portion lm of each tubular extension 5' is provided with a screw-tap, whereby all of the chamber portions IlIn can be connected in series. The airpipe (i in this construction is arranged the saine as in the preferred form, and both the pipe 6 and the tubular extension 5 have beveled surfaces at the ignition end, as shown.

In Figs. l0 and ll the burneris illustrated as comprising three distinct vapor-collecting chambers, (designated by C C (EJ-into each of which a separate gas-feed pipe discharges. As shown in Figs. 10 and 12, but two gasfeed pipes c c are used, one of which, c', connects with the central chamber C', and ani other, c, provided with laterals ci cx, that discharge into the outer chambers C, and the two pipes o c are held to coperate with the,-

valved ejectors 3f 25a, which are joined with the pipe 3 in the manner clearlyshown in Fig. l2.

Slight changes in the details of construction and further modifications of my invention may be made without departing from the scope of the appended claims.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In a burner of the class described; a generating or vaporizing tube, a valve-controlled fuel-feed discharging into the entrant end thereof, a supplementary hollow rtube of less diameter than the vaporizing-tube rem ovably mounted in said vaporizing-tube, a cap for closing the inner end of said supplementary tube, said cap being of a diameter to closely fit inside of said vaporiZing-tube, and having spiral grooves on its periphery, all being arranged as specified.

2. In a burner as described, the combination with the vapor-collecting chamber and the burners cooperatively joined therewith; of a generating or vaporizing tube supported over the burners, said tube having a pendent outlet-pipe and a valved ejector at one end, a valved fuel-feed pipe connected with the other end of the tube, a hollow space-filler detachably mounted within the vaporizingtube, means for closing the inner endof said space-filler, consisting of a cap of a diameter to snugly fit the inside of said vaporizin g-tube and having spiral grooves on its periphery, said cap also serving as a supporting means for the inner end of said space-filler, and a means for supporting the outer end of said space-filler whereby the said space-filler is supported within the said tube and out of con tact with the walls thereof, as specified.

3. In an appliance as described, the combination with the burners, a generating or vaporizing tube cooperatively connected there with, an outlet-pipe connected with the said tube, and a valved ejector on the said outletpipe for feeding the vaporized fiuid to the burners; of a valve chamber detachably mounted on the inlet end of the vaporizingtube, said valve-chamber having a feed-inlet and provided with opposing valve-seats, one at the inlet and the other at the outlet end thereof, each of said seats having radial grooves or channels, a floatable valve within the valve-chamber, having its ends shaped to engage the opposing valve-seats, said valve being shiftably supported and endwise movable alternately in opposite directions to engage the opposing Valve-seats by the varying fluid-pressures from the opposite ends, as set forth. Y

4. In a gaseousduel burner as described,a burner having a central and two outer inde pendent compartments, a vaporizingtube having a pendent outlet-pipe, said pipe having laterals, each provided with a valveeqnipped ejector, a valve-chamber mounted on the inlet end of said vaporizing-tube, said valve-chamber having a feed-inlet and provided with opposing valve-seats, said valveseats having radial grooves or channels, a valve within said chamber adapted to seat upon said Valve-seats at predetermined times, a vapor-receiving tube cooperatively joined with each ejector, one of said tubes communicating with lthe central compartment of the burner and the other tube communicating with the two outer compartments, and firingtubes connected with the several independent compartments of the burner, the central TOO ITO

IZO

ones of said ring-tubes being disposed in alineinentwith the vaporizing-tube, substantially as shown and described.

5. In an appliance as described, the combination with the burners, a generatingor vaporizing tube coperatively connected therewith, an outlet-pipe connected with the said tube and a valved ejector for the said outletpipe for feeding the vaporized fuel to the burners, said vaporizing-tube consisting of an outer tube having a-valved inlet at one end and a hollow space-filler mounted within said vaporiZing-tube, a cap having grooves in its periphery and of a diameter to snugly t VVinside the vaporizing-tube, said cap adapted to close the inner end of the said space-ller,

and an enlarged portion at the other end of the space-filler to prevent the discharge of the vaporized fuel to atmosphere, said enlarged end. being internally threaded, a handle having a threaded member adapted to engage with said internally-threaded portion and forming a plug for closing said enlarged end of the hollow space-liller, whereby the said space-filler may be readily withdrawn from or inserted into said vaporizingtube, all being arranged substantially as shown and for the purposes described.

- y ROBERT J. MINER. Witnesses:

FRED G. DIETERICH, JOHN L. FLETCHER.

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