US1355500A - Burner - Google Patents

Description

G. H. RIEFLIN.

BURNER.

APPLICATION man SEPT. 9. 191s.

Patent-ed 0t.1 2,.1920.

2. SHEETS-SHEET l.'

LUM

INS/ENTER: La

G. H. RIEFLIN.

BURNER.A

PPLlcAloN mgm SEPT. 9. |918 2 SHEETS-SHEET 2.

l Patented Oct. 12, 1920'.y

UNITED STATES PATENT OFFICE.l

GEORGEYH. RIEFLIN, 0F ROCHESTER, NEW YORK, ASSIGi-NOR` ONE-HALF TO CLARENCE A. WORM, OF BUFFALO, NEW YORK.

' BURNER.

Specification of Letters Patent.-

Patented Oct. 12, 1920.

Application tiled September 9, 1918. Serial No. 253,307.

of Rochester, Yin the county of Monroe and i State of New York, have invented certain new and useful Improvements in Burners, of which the following is a specication.

The present.' invention relates to burners and more particularly to the typehaving means for converting a low grade fuel such as'kerosene into a gas, through the means of a heated gas generating chamber. An object of this invention isto provide an improved gas generating chamber which will effectively convert the liquid fuel'intoa gas before discharging it into an air mixing chamber, so that the burner member will give a blue flame. Another object of the invention is to control the entrance of the of a thermostat subject to the influence of Y an auxiliary burner whichy heats the generating chamber so that when the auxiliary burner is extinguished for any cause whatsoever, the liquid fuel will be out off from the generating chamber. Another object of this inventionis to provide a two-chambered burner member leading-from a single outlet of a' mixing chamber and controllable in such a' manner that either one or bothchambers may be employed.

To these and other ends, the invention consists of certain parts and combinations of parts all of which will be hereinafter described, the novel features beingpointed out in the appended claims. Y

ln the drawings Figure 1 is a plan view'of an embodiment of the invention showing the burner member disconnected from the mixing chamber;

Fig. 2 is a view in side elevation with parts in section showing the burner complete connect'ed to a fuel reservoir;

Fig. 3 is a detail view showing the man` ner of supporting the thermostatic bar;

Fig. 4 is a detailv view of the air inlet of the mixing chamber;

Fig. 5 is an enlarged section on theV line 5 5, Fig. 2;

Fig.V 6 is a section on the line 6 6', Fig. 7; Fig. 7 is a section on the line 7 7, Fig. 6; Figs. 8 and 9 are detail views of another form of burner member', Y

Fig. 10 is a detail view showing one manner of connecting the operating key to the valve;

Fig. 11 is an enlarged detail view of the I nozzle which discharges into the mixing chamber; and

Fig. 12 is a detail view of one of the valves.

The burner may be supported in any suitable manner as upon the grate l of a range. The fuel is conducted tothe burner by a` piping 2 from a tank or reservoir 3, 1n which the fuel is maintained under pressure by a pump 4. The piping 2 leading from' the reservoir 3 connects with a gas generator 5 in the form of an elongated tube, which may have therein steel wool 6 or other suitable material which will act to retard the flow of. thel liquid fuel through the generator, permitting said fuel to be held in the generator a time sufficient to be converted into gas. It is preferred to use steel wool as the latter may be maintained 1n the tube at any density, and at the same time does notl flake to close up the valves or fuel nozzle of the gas generator.

Connected with thegas generator' is the nozzle 19 which has a discharge 'orifice 20- of funnel formation. By making the ori- 'ice of this form, the fuel issuing from the nozzle is caused to spread instead of being directed in a stream, the spreading effect being determined by the angles ofy the walls of the orifice, the greater the angles the greater the Haring effect of the gas issuing from the nozzle.

The iiow of the liquid fuel into the gas generator may be controlled by a valve'7 having a valve member 8 with a tapered end 9 for cooperation with the seat 10, the valve member being provided with threads 11 per dle 13a and'thezstem 14? is not providedv with."

a knuckle joint. In order to guide the socket 16a of this key to the squared end 17 of the valve stem, the valve may be provided with a funnel-shaped or flaring member 18 surrounding the squared end of the valve stem and acting to center the socket 16a on the stem. The knuckle or universal joint is provided in the first mentioned embodiment in order that the operating member may be extended through the damper 63 in the front of a range above the fire pot, thus permiting the burner to be controlled from the exterior of the range.

vThe nozzle 19 discharges into one end of an arm 21 of a mixing chamber which also comprises an arm 22 connected to the arm 21 by a bend. Adjacent the point where the nozzle 19 discharges into the mixing i chamber, the Vlatter is provided in its bottom with an air inlet, and within this air inlet a rotary agitator 24 operates, said agitator being mounted on a shaft 25 which is journaled at its upper end within the mixing chamber and its lower end in a spider 26 secured to the lower end of the inlet by screws 27. This agitator tends to stir up the air in proximity to the fuel nozzle to produce a proper mixture. Control of the air through the inlet may be effected by a valve 28 pivoted on one of the screws 27 and operable over the end face of the spider 26 to vary the size of the opening through the spider. The other arm 22 of the mixing chamber is provided with an upwardly-opening outlet 29 surrounded by a flange 30 to which the burner member is secured, as will be hereinafter set forth.

lVith the end in view of heating the gas generator, two heating devices are employed, one lfor priming purposes and the other operating after the burner is in operation. The priming heater, in this instance, comprises a trough 31 formed in the base of the burner directly beneath the gas generating tube 5. This trough is adaptedto receive alcohol or gasolene which when ignited will direct the flame on the gas generating tube 5 to start the generation of the gas. 'After the gas has been generated the gas generating tube may be heated from an auxiliary burner 32 which extends longitu- V- dinally of the gas generating tube 5 to one sideof the trough 31, said burner being formed with a number of slots 33 in the side of a tube which connects by a bend 34 with la tube 35 leading from the mixing chamber, preferably in line vwith the arm or leg 22 of said chamber. By these means,

.after the generatorV has been started, the

burner member 32 is supplied from the mixing chamber to maintain the gas generating tube 5in a rheated condition.

Itis preferred to provide some means for automatically cutting off the fuel supply whenever the gas valve 12 is operated manuthe burner member 33, and has'i'ts free end provided with a deflected portion 39 pivotally connected to an karm 40 on the valve stem of the valve 7. It is apparent that as long as this bar 36 is in an extended condition the valve 7 will remain open and permit the flow of fuel to the gas generating tube 5, but as soon as the thermostatic bar 36 contracts, due to the reduction in heat, the valve 7 will be closed.

Any suitable form of burner member may be employed. In the embodiment shown in Figs. 1 to 7, the burner member is in the form of an elongated body 41 with two chambers 42 therein, separated by a partition 43 and openings at the bottom of the burner member at 44 to provide for the intake of the gas, said openings being surrounded by a flange 45 by which the burner member may be connected tothe burner as will be set forth. The burner member is provided in its top and side walls with a number of slots or openings 46, through whichthe gas passes, and at which such gas is ignited. To reduce the size of the chambers 42 so that the gas will not be cooled, an opening 47 extends throughout the length of the burner .member 41 and opens at opposite ends of said member. The walls of this central opening tend tovdeflect the gas so that the latter may issue with equal force from all of the burner openings.

With the: foregoing type of burner member it is desirable to interpose between the mixing' chamber and the burner member a member. The packing member 51, with a partition 52, is adapted to be arranged between the flanges 45 and v49Go that a continuous wall is provided between the partitions 50 and 43. Within the coupling member v43 below the partition 50, two valves 53 are arranged, these valves swinging in opposite directions on shafts 54 which are extended to the exterior` of the coupling member and are provided withv operating handles 55. Through: these handles either one or both ofthe valves 53 may be opened or closed, so that .the flowfof gas into the chambers 42 is controlled at will. The construction and arrangement of the handles are such that they act to hold the valves in either open or closed positions.

In order that the burner may be maintained in condition for instantaneous use, the burner member-41 is provided with two pilot lights 61 branching from a pipe 62 leading from the coupling member 48 below the valves 53. lVhen the valves 53 are closed the pilot lights 61 will maintain flames adjacent opposite ends of the burner member 41, provided, of course, thevalve 12 has not been closed completely. Of course, under such conditions, the opening in the valve 12 will be reduced to such a point that only a small flame issues from the burner 32 sulicient to generate only a small amount of gas.

Another form of burner member is shown in Figs. 8 and 9, this member being of circular formation and indicated at 56. Its fiange 57 about its inlet 58 is secured directly to the flange 30 of the mixing chamber. As the gas enters they burner 56 it impinges a concave deflecting surface 59 and is directed by the latter to the screened opening` 60, at which the burning of the gas takes place.

In the operation of the invention, the valve 12 is opened and the alcohol or gasolene placed in the trough 31 is ignited. This flame heats the gas generating tube 5 as well as the thermostatic bar 36. The heat of the bar expands the latter, thus opening the valve 7 and admitting liquid fuel to the gas generating tube 5. After a short time the gas in the tube 5 is discharged by the nozzle 19 into the mixing chamber, where it mixes with the air entering through the inlet 23. At the same time the burner member, which is connected with the outlet 29 of the mixing chamber, is ignited. With the entrance of the gas into the mixing chamber gas will enter the conduit 34-35 and pass to the burner 32 where it will be ignited Vby the llame from the trough 31. Eventually, the fuel in the trough will burn out, after which tlie gas generator tube 5, as well as the thermostatic b ar, will be maintained in a heated condition by the auxiliary burner 32. Should it be desired to cut off either end of the burner member 41, the desired valve 53 is manipulated. VWhen the valve 12 is closed, gas will no longer be discharged into the mixing chamber and, as a consequence, the auxiliary burner 32 will go out. On the extinguishing of the auxiliary burner 32, the thermostatic bar 36 will cool, thus effecting the closing-of the valve 7 and preventing the feeding of any more liquid fuel to the generator tube 5.

lV hat I claim as my invention and desire to secure by Letters Patent is 1. A burner comprising a mixing chamber, a nozzle discharging into said mixing chamber, a gas generating chamber connected to said nozzle, a valve arranged between the gas generating chamber and the nozzle and in spaced relation to the nozzle to control the flow of gas from the nozzle without varying the size of the discharge orifice of the nozzle, and an auxiliary burner connected to said mixing chamber and arranged to heat fuel in said gas generating chamber.

2. A burner comprising a mixing chamber, a gas nozzle discharging into said mixing chamber, a gas generating chamber connected to said nozzle, a valve arranged between the gas generating chamber and the nozzle to control the flow of gas from the nozzle, a valve arranged between the fuel supply and the .gas generating chamber to control the flow of fuel into the gas generating chamber, an auxiliary burner connected to said mixing chamber and arranged to heat the fuel in said gas generating chamber, and a thermostat subject to the heat of said auxiliary burner and connected to said valve which controls the flow of fuel to the gas generating chamber to cut off said fuell supply when the gas controlling valve is closed.

A burner comprising a mixing chamber having two arms connected by a bend, one of said arms being provided with an air inlet vand the other being provided with an outlet for the gas, a gas-generating tube arranged in line with one of said arms and having a nozzle at one end discharging into said arm adjacent the air inlet, an auxiliary burner tube arranged parallel with said gas generating tube and below the latter and having connection with the mixing chamber 'adjacent the gas outlet of the latter, and a burner member positioned above the mixing chamber and having a depending portion connected to the outlet of the mixing chamber.

4. A burner comprising a horizontally elongated body having a central opening extending horizontally therethrough, and two chambers at opposite ends of the body, the burner being provided with a partitioned inlet at the center and on the under side of the body.

5. A burner comprising a mixing chamber, a gas nozzle discharging into said chamber, a burner member provided with a plurality of clfambers and with a partitioned inlet communicating with said chambers, and a coupling member interposed between the burner member and the mixing chamber and having partitioning means therein corresponding to the partitioning means in the inlet, said coupling member also having mounted therein independently control,

lable valves for controlling the flow of fuel with the different chambers of the burner member.

GEORGE H. RIEFLIN.

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