US1131480A - Fuel-oil burner. - Google Patents

Description

fa/2 awd.

.fTTEIFQNIPny L. H., DAVID.

FUEL OIL BURNER.

APPLICATION HLBD JUNE 2, 1914.

L. H DAVID. PULL oIL BURNER. APPLICATION FILED JUNE 2, 1914. Ll SL48@ Patnted Maf. 9, MM5.

liu

WiTNESSES. `lun/ENTR I L @an mru?.

www@

Mmmm( steam and oil LEQN H. DAVID, F FORT CASEY, WASHINGTON.

FUEL-OIL BUR.

Specification of Letters Iatent.

Patented Mar.; 9, ltl.

Application filed .T une 2, 1914. Serial No. 842,463. y

v ToaZZ whom z't may concern Be 7 it known that I, LEON H. DAVID, 'a

`citizen `vof the United States, residing at Fort Casey, in the county of Island and State of Washington, have invented certain new and useful improvements m Fuel-@1l Burners, of which the following is a specification.

rfhis invention relates to improvements 1n fuel oil burners, and has for its object the provision of means for atomizing and breaking up the heavy hydro-'carbone and securing a perfect admixture of steam therewith to linsure the complete combustion thereof.

.A further objectof the invention is the provision of valve-controlling means of simple construction whereby the passage of may be regulated to a relatively fine adjustment and which is not liable to hecome clogged or otherwise rendered unt for successful and economical service. v

A still further object of the invention is the provision of means wherehv, should the oil passages become clogged, they may be instantly cleared by passage of steam therethrough under pressure in a reverse direction to the normal course of the oil..

The invention consists in the novel con- 'struction of loil-atomizing devices and of valve-passages for the admission of oil and steam thereto, the combination of such ele- Y ments and the adaptation therewith of parts and devices. as will he hereinafter fully explained', illustrated in the accompanying drawings; and iinally set forth 1n the appended claims.

Referring to said drawings, Figure l is a view in vertical section of apparatus emhodying niv-invention partly broken away. Figs. 2 and 3 are front and rear elevational views of the saine, respectively. Fig. t is a fragmentarv detailL view partly in vertical section, on line if- 1t of Fig. Fig. 5 is a `fragmentary detail side elevational view of a valve element shown detached.

Referring to said'views, the reference numeral 't indicates a steam valve casing having a tubular tting 5 adapted to be conrmunicativelv connected to a pipe leading to a source of steam supply under pressure (not shown). Said fitting includes a passage 6 and a restricted aperture 7 communicating with the valve 'chamber 8. `Said aperture 7 is preferably of relatively long and narrow configuration having its larger axis extending longitudinally of the burner. Said valve-chamber 8 is formed with a tapered seat arranged to receivea frustoconical interiorly chambered valve member 10 having its axis of rotation in arallel with said major axis of the aperture The valve stem 1l extends forwardly thereof and is mounted in packed gland-bearing 12, as customarily. The valve member 10 is provided vwith a port 13 adapted to register when suitably manipulated, with said aperture 7. Said port extends through the side walls of said valve and communicatively connects said aperture with the interior chamber of the valve and with the passage 15 leading to the burner propera Port 13 extends circumferentially in aline'nent with the aperture? for a considerable distance about the valve 10 in a progressively di verging opening from a point 16 at one extremity to its opposite eXtremitv 17where itis approximatelv of a width to include the entire length of the aperture 7. A portion ot' the material of said valve is retained. as at 18., suiiicient to lend integritvand strength to lthe valve member and whereby. the valve is closed to the passage of steam when the same is caused to lolock' the aperture 7, as indicated in the views.

20 indicates a handle operatively connected to said valve stein il which is provided at its opposite end with a pointer 23 adapted to he associated with a dial '221 mounted or formed on the valve casing and suitablv inscribed with inscri pticns, as 'at '23, 231l and Q32, respectively. indicating the relative position of the valve; thus., when the relatively narrow point 16 is in register'with the aperture 7, the pointeri will indicate the inscription 23 descriptive of .the open condition of the valve between saidv inscription about said dial to a point correspondine to the widest portion 17 oithe port, as indicated at 231, equal graduate marks as an assistance te the operator in regulating the prcportione of steam andoil. The yhalence of the per The dial is divided into irneter of said dial corresponds to the blank portion v18* of the valve and is distinguished by an inscription 232 signifying the same.

lmmediately below said steam valve pparatus is positioned a. fuel-oil controlling valve consisting of a casing 26 provided with i a fitting 27 adapted to make communicative connection of the oil passage .28 of said casing and an oilsupply pipe, not shown., leading from-asource-ot oil-supply Yunder pres 36 and pointen 37 associated with a dial 38 inscribed in an analogous manner to the described dial 22. Mounted at one end in said casing 26 and communicatively connected with said chamber 31 is an oil-pipe 40 extending horizontally therefrom and adapted to extend Within a discharge pipe and tip to protrude Within a furnace and provided at its opposite extremity with a nozzle 41 having an outlet opening for the emission ot' cil therethrough. Communicatively connected with said passage 15 is a horizontally arranged steam pipe 42 disposed concentrically about said oil pipe 40 having a bore of sulicient diameter to all'ord a passage 43 thereabout. The steam pipe 42 extends to Within a short distance of the inner extremity of oil-pipe 40 and is provided at 'such extremity with screw-threads 45 making connection with the base 46 of a burner-tip 47. Axially of said burner the base is formed With an opening 48 adapted .to'receive the nozzle 41 of the oil pipe, the lopening48 being of suli'cient diameter to allow of the passage of steam about said nozzleand also provided with a plurality of spirally directed grooves 50 through which the major portion of the steaml is permitted to pass and give a. whirling or spiral direction. rlhe burner-tip 47 is provided with a chamber portion 51 beyond the open ing 48 and into which the-nozzle 41 slightly projects and in which the oil and steam are mtermingled and through the velocity and whirling motion of the escaping steam the oil is thoroughly broken up or atomized. The combined oil and steam is thereupon permitted to escape through 'the apertures 52, 52 in-bevel plates 53, 53, whence it issues into the combustion chamber of the furnace through slots 55, 55,` The upper 'portion ot said valve casing 26' is provided with `a b vpass 56 connecting the chamber 31 with the meinen steam passage 15 in alinement with the ap-a erture 30 andport 35. Said b -pass is provided with a needle-valve 5 controlling samefwhereby steam may becaused to pass'v fromthe passage 15 through the port 'p35 into the chamber 31,1-and thence throughv the member 32 is shifted to expose lor cover `the 'aperture 30.

It will be -noted that the adjustment of the steam valve 10 may be set with great accuracy and delicacy, ranging from the slightest opening equivalent to a pin-point at the extremity 16 of the valve 10 to the fullest area of the aperture 7,it` being un derstood that the axis of said aperture l extends transversely to the length of the port 13 and the full'opening of said aperture is only obtained by the rotation of the valve through the major portion of a revo lution and through the movement of the valve from initial point indicated at '232 wherein the valve is closed, past the point indicated at 23 Whereat the valve is slightly open. rThe opening progressively widens as the handle is rotated in the properv direction until the full opening is obtained at the point .indicated at 231. A further movement of the valve handle in the same direction immediately shuts od the supply of fluid or reversely, the handle may be rotated in the opposite direction whereby a full opening is obtained at once Without further operation of the valve handle. The valve 32 is operated in a similar manner.

The invention is simple in its construction and mode of operation, is durable in use and is not liable to become disordered in service. 'lhe valves are adapted to give perfect regulation and are Well adapted for the purposes intended.

Having described my invention, what l claim, is-

1. ln a device of the class described, steam and oil supply pipes,a valve :tor each ot the pipes consisting et a chambered casing having an elongated aperture in its side wall, the major axis of the aperture lying parallel with the axis of the casing-chamber, a rotatable valve member having an elongated triangular portyvhose greatest length is disposed transversely to the major axis of the aperture, and outer and inner concer: tric steam and oil tubes communicatively connected 'to the supply pipes.

2'. In a device of the class described, a steam` tube arranged to protrude within a furnace, an oil tubel arranged concentrically Within th steam tube, `a steam supply pipe and oilsupply pipe respectively connected with the tubes, valves in the supply pipes each consistingof.latjtapered valve chamber forming a portion ot 'the supply duct, the

zit

meme@ Signed at Fort Casey, Wash., this 26th day of May, 1914.

LEON H. DAVID.

Witnesses: y

D. W. CRADDOCK, JOHN J. ERNST.

Images