US1657831A - Liquid-hydrocarbon burner - Google Patents

Description

Jan. 31, 1928. 1,657,831

' J. M. KELLEY v LIQUID HYDROCARBON BURNER I Filed Feb. 192s 2 Sheets-Sheet 1 f mum 217,16: jig. l

v fl INVENTOR- BYW 'LM m ATTORNEYS.

Jan. 31, 1928.

1,657,831 J. M. KELLEY LIQUID HYDROGARBON BURNER Filed Feb. 1925 2 Sheets-Sheet 2 i .25 f r L' i a? M\ I Q 503g 26 a1 57 as 35 O 0 a6 59 313 I i Z6 6 L044: w11 23:41pm 0 o o 0 IN VEN TOR. J 0/1274! A II/ 3 ATTORNEYS.

of a means which will cess to the valve for chamber of the oven burner;

Patented Jan. 31, 1928 UMYTED? @STA-TES PATENT OFFI-GE-v' J OHEBDM KELLEY, OFiROGHESTEJM NEWJYORK, ASSIGNOR=TOIROTANEJGQRPORATION,

OFERIE, PENNSYLVANIA.-

LIQUID-HYDROGARIBON. BURNER.

Application filed February The present invention relates to 1iquid1hydrof-carbon burners and aIrObjCt of the invide a burner with a mixing device ata point such inixlng device hav removed therefronir, ing awarming flame; which will act alsdfo-r igniting-the burner. Still another objectpof the invention is the interrelation between a plate burner and an oven burner so that e ther may be employed forthe ignition oi" thefother. A stillfurther object of the in 'v'ention'is theinter-relation between a plateburner 'and an "A still further object is the provisionprevent the ready ac-q I turning on the gas of theioven burner while the door of the even into which the gasis discharged-and burned is in a closed position.

a. To these and other ends, the invention con sists of certain parts andwcombinations :or

other;

parts all of which will" be. hereinafter described: the novel features being pointed out in the appended claims. I

In the drawings; c I

Fig, l is a front view of a gas range embodying the presentinvention;

Fig; 2 is a horizontal section of the gas range above the burners; a I

Fig. 3 is a. View of the underside of the ovenburner showing its relation to one'of the plate burners;

4 is. a side viewof the mixerof the oven burner partially in section;

Fig. 5 is a horizontal'section of the mixing Fig:

r in section and partiallyiin plan a. V n flexible connection between an expansion Will not develop" pounds at 100 men burner so that one warms the drier or QXPflIlSIODLChEHHbGI of the.

' heavy as air {and about seven hundred pheric pressure at The sixth and seventh .constituents' of commercial gasoline.

designedfor'burning the =intermediate. products or" the casinghead gas. 7 a Which will not develop. Sis! aview of the dryingdevice par-1 7 a sectional View showing:thenananitialwboiling chamber and the fuel conducting burner:

Fig. 9 is a fragmentary View showing the 1 manner an which the burnertube passes through the oven casing,

pipe; and- F1g8 is a longitudinal section of the" burner for warming the. expansion chamber of the oven burner and igniting-the'ioven--.x,

The present invention is. designedparticu- -larly-for burning liquid hydro-carbon fuels dry end pointinot in ex cess 015150 F. andan initial'boiling pointof F. or -lower and" which of the type havin'g a approximately 45 pressure in excess of fifty.

ableii'rom'thefgascescaping from oil sands in the production-of crude oil and-known m the-trade as casinghea'd -'F. Such a fuel is obtain- 9 gas; This casing head gas; is represented :by, the following *compoundsf v V Methane CH ethane COH propane C butane C H 5 f pentane G H hexane (1 H heptane (2 11 These belongzto the same chemical family but with different. physical The first-.compound-is agas about one-halt as characteristics.

'requiringc'about the same" pressure; and temperature as .airto liquefy.

Thesecond compoundiis also a gasat ordi-f,

nary temperatures and pressures; requiring pound. pressure and a ten'lperaturegot' 40 F. to liquefy. f The third compound 'is a gas of ordinary pressure and temperatu re5w but :liquefies at two hundred and any pounds at a temperatureof .63 .F

The" fourth compound is a liquid. at atmos- The 'fifth compound atmospheric pressure, lighter fractions of commercial gasoline products arelthe main This invention 's of fifty'pounds at 100 dry" endpoint. not in excess of 150.1115. and

F. or lower:

atemperature of 82 F. I

is aliquidat60 F.,.'.at 3 rand-forms one of the a pressure in excess n e 'F. and .whichhas a point: of approximately 45 i In an application filed by me on the 18th day of June, 1923, Serial No. 64:5,94n5, I have disclosed an apparatus for burning the aforesaid liquid hydro-carbon fuel and a burner used in such method. The present invention embodies improvements over the invention claimed in my aforesaid application.

The present invention is herein shown as illustrated in a gas range with an oven although it will be apparent that the invention is not limited to this use of the invention. Referring more particularly to the drawings, 1 indicates the range having a top plate 2, a bake oven 3 and a broiler oven 1. The gas in liquid form is received from a suitable source through a pipe 5 andis conducted by said pipe to the driers or expansion chamber 6, 7. 8, 9 and 10 of the different burners. In this instance, the coupling head 11 of each burner 6, 7, S, 9 and 10 has a port or opening surrounded by a seat 12 for one end of a conductor pipe 13. This seat has an enlarged bore 14. thereabout formed with screw thread walls with which external threads on a bushing 15 are adapted to engage. The end of this bushing is feathered at 16 in order to cooperate with a camming or wedging wall 17 formed on the drier head 11 and adapted to press the feathered edge or portion 16 onto the coupling pipe 13. thereby providing a flexible yet gastight connection between the driers or expansion chambers and the fuel supply. The coupling member or head 11 of the drier 10 being the last in the series has only one of the flexible connections secured to it.

The driers or expansion chambers 6, 7, 8, 9 and 10 are the same as that claimed in my application aforesaid Serial No. 645,945. In this illustrated embodiment they are identical in construction except. as to length so that a description of the drier 10 will serve for all. This drier or fuel delivery device comprises an elongated expansion chamber having the coupling member 11 secured to one end thereof and having a bushing 18 at the other end formed with a discharge orifice 19. This elongated expansion chamber has its walls formed with a material of high heat conductivity such as brass or copper. Within this tube or expansion chamber a helix 20 may be arranged extending from the coupling member 11 substantially to the bushing this helix having a central opening in which a controlling memher or needle 21 is operated. One end of this needle has a screw threaded portion 22 turning in the coupling member 11 and provided with a handle or turning wheel .23 on the exterior of the coupling member. The other end of this needle is provided with a long sharp pointed tapering end 24 which operates in the cylindricallv formed orifice 19 in the bushing 18. The helixacts as a guide for the stem of the needle and the pointed tapered end acts to measure the amount flowing through the orifice in its extreme end, the orifice being entirclv closed when the cylindricd portion of the stem enters the cylindrical orifice- Each drier (5, 7, 8 and 9 projects slidably into a mixing device, the same, in this instance, as disclosed in my application Serial No. (345,945 aforesaid. and comprising generally a mixing chamber 25 in the form of a return bend connecting with the burner head 26, the mixing chamber having an air inlet opening controlled by an ad ustable air inlet valve 27.

Each mixing chamber and burner of the driers 6, 7, 8, and 9 are secured by bolts 25 to a supporting bar 25" of which there are two, one for the driers 6 and 8 and the other for the driers T and 9. The valves 27 are situated above these bars and have their outward movements limited by the bars. The even burner embodies the main burner portion 28, in this instance in the form of a rectangular frame with a contra leg arranged in the broiler oven beneath the bottom of the baking oven and supported through lugs 29 on brackets 30 secured to the side wall of the range. The wall 31 adjacent the plate 2 is provided with a collared opening 32 and in this collar a laterally extending arm 33 on a mixing; chamber 34: of the oven burner extends, the arm 33 being enlarged to receive a lateral projection 35 on the burner member 28 and this lateral projection being secured in the arm 33 by a bolt 36. The collar has a recess 33 below the arm for a purpose to be described.

The mixing chamber of the oven burner extends from the arm 35 rearwardly and downwardly at 37 and then by an upward and forward bend 38 connects with a forwardly extending portion 39. thereby forming a trap for any un 'aporized fuel. At the forward end of this arm a depending portion 40 is provided having an air opening controlled by an adjustable valve 41, whereby the amount of air entering the mixing chamber formed by the. portions 37. 38 and 39 may be controlled or adjusted. Above the air opening, the mixer chamber has a sub-chamber 12 which through a contracted portion 43 connects with the main portion of the mixing chamber. Into this sub-chamber 4-2 the end of the drier slidably projects so that the fuel issuing from the orifice 19 first partially expands in the chamber 42 in the presence of air and then the mixture passes through the contracted opening 43. so that a final expansion takes place in the main chamber of the mixer.

Extending forwardly from the body of the mixer is an arm 44 having an opening 45 at it forward end aligned with the opensaid jet openings will be conducted to the jet openings 49 of the burner.

lVith the end in view of preventing the operation oi the oven burner prior to the opening of one of the oven doors, so that the gas cannotaccnmulate in the oven and pro duce an explosion, the broiler oven door at is provided with an arm 5% which has at its outer end a flanged disk or cap of a size to cover the operating wheel or handle 23 of the valve of the expansion chamber 10. This cap when the door is open exposes the handle or wheel 23 for operation. As a consequence, it is impossible readily to turn the handle or wheel withoutopening the door of the broiler oven. It is desirable to place this valve covering device upon a broiler door in preference to arranging it upon the door of the main oven as the gas, it issued unburned from the burner at all, being heavier than air will accumulate mostly in -ihe broiler oven and will with the opening oi the door, fall or pass out from such oven.

\Vith this invention, it is possible to ignite a burner situated at a distance from the mixing chamber by means of an auxiliary or warmingburner which is utilized for warming an expansion chamber which delivers gas into the mixing chamber, this result being secured, in this instance, by providing a connection between the distant burner and the mixing chamber which has a series of jet openings connecting the jet opening oi the warming burner with the jet openings oi the distant burner. A mixing chamber provided which has a snbchamber separated from the main portion by a restricted passageway and provided with an air inlet opening, so that the gas expands in passing into the main portion after being delivered to the sub-chamber. The mixing chamber has beyond the restricted passageway two arms one of which connects with the warm ing burner and the other of which leads to the main or distant burner. Furthermore, two mixing chambers are provided each having its own expansion chamber to deliver gas therein and one of which has a burner connected with its mixing chamber and so arranged that a flame from such mentioned burner will warm the expansion chamber of the other burner. In one form, the expansion chambers are elongated, one being lone er than the other and the two burners are arranged one in rear of the other, the forward burner being arrangedto warm both expansion chan'ibcrs and the rear burner being arranged to warm only the expan ion chamber connected to it. There is also provided a construction in which two expansion chambers are employed each of which has two burners, one of such burners being utilized for warming its expansion chamber and the other burner connected with such expansion chambers being utilized for warming the expansion chamber of the other two burners, and igniting the warming burner of such other two burners whereas the warming burner of such other two burners is employed for igniting the other burner of such other two burners. A range is provided which has an upper and lower oven, the door 01 the lower oven being employed for preventing the operation 01 the valve which controls the burners for heating both ovens.

\Vhat I claim as my invention and desire to secure by Letters Patent is:

1. The combination with a main burner, of an air mixing chamber arranged at a distance from the main burner, an expansion chamber arranged in close proximity to the air mixin chamber and at a distance from the main Taurner and discharging in the air mixing chamber, means for delivering liquid fuel into said expansion chamber, a second burner arranged in proximity to the expansion chamber and at a distance from the main burner and receiving gas from the air mixing chamber, said burner playing upon the expansion chamber to maintain the latter in a warm condition, and a gas conducting connection between the two burners through which the main burner receives its supply of fuel from the air mixing chamber, said connection being formed with a train of jet openings maintaining a contmuous flame connection between the two burners, so that either may be lighted from the other and both burners will be maintained in a lighted condition.

2. The combination with a chamber and an elongated expansion chamber into which a llquid fuel is delivered arranged extcriorly of the first mentioned chamber, of an air mixing chamber into which the gas from the expansion chamber is discharged, arranged exteriorlyof the first mentioned chamberpan arm arranged exteriorly of the first mentioned chamber extending from the mixing chamber along the expansion chamber and provided with a warming burner for the expansion chamber arranged exteriorly of the first mentioned chamber a main burner arranged within such first mentioned chamber, and a connection between the mixing chamher and the main burner having jet openings leading to the burner of said arm to conduct the flame to the burner from the warming burner.

3. The combination with an elongated ex pansion chamber into which the liquid fuel is delivered, of an air mixing chamber into which gas from the expansion chamber is discharged, an arm extending from the mixing chamber and provided with a \211111- ing burner for the expansion chamber receiving gas from the mixing chamber and arranged to be ignited by a flame producing device employed for initially llf) warming: therexpansiou chamber, a main burner, and connection between the main barrier and the mixing chamber embodying arms onzbothielements', one received within the other, the receiving 1 arm. having a bevelled end and both arms being provided withijet openings which extend through the bevelled portion and conduct a flame from the warming burner to the main burner without a break.

4. The combination with a chamber to be heated and an expansion chamber arranged exteriorly of the first mentioned chamber, of

a main burner within the first mentioned chamber, an air mixing chamber into which the expansion chamber delivers fuel, arranged exteriorly of the first mentioned chamber, a connection between the air mixing chamber and the main burner through which the main burner receives its supply of fuel from the mixing chamber. and a train of jet openings leading from the main burner through said connection to a point adjacent the expansion chamber so that a flame employed for warmingthe expansion chamber will, through said train of jet openings, ignite the main burner.

5. The combination with a chamber and an expansion chamber into which liquid fuel is delivered arranged exteriorly of the first mentioned chamber, of a mixing chamber arranged exteriorly of the first mentioned chamber and having two parts separated by a restricted passageway, one of said parts having gas from the expansion chamber discharged therein and being provided with an air opening, two burners receiving gas from the other part of the mixing chamber, one

7 of said burners being arranged exteriorly of said first mcntioned chamber and acting to warm the expansion chamber, and the other of said burners being arranged within said first mentioned chamber, and means for conducting a flame from such warming burner to the other burner to ignite the latter.

6. The combination with an expansion chamber into which liquid fuel is delivered, of a mixing chamber having two parts separated by a restricted passageway, one of said mixing chamber parts having gas from the expansion chamber discharged therein and being provided with an. air opening and the other of said parts having a return bend and being provided with two arms, one of which extends alongthe expansion chamber and is provided with a warming burner for the expansion chamber receivinggas from the mixing chamberand the other of which extends laterally and is provided with jet openings communicating with the warming burner of the first mentioned arm, and a burner connected with the last' mentioned arm to be ignited by a flame from the warmingburner of such arm.

7. The combination with a stove and two elongated expansion chambers horizontaliy sidebyside on the stove, one of said expansion chambers being -longer than the other, of two mixing chambers, one receiving gas from each expansion chamber, and .two burners each associated with: one mixingchamber, that burner connected with the mixing chamber associated with the longer expansion chamber lying onthe stove in rearof the other burner, andthe forward burner lying between the two expansion chambers, each of said burners having jet openings from which flame playsupon the expansion chamber from-which the burner receives its gas to warm said expansion chamber, and the burner connected with the shorter expansion chamber also having jet openingsfrom which a flame passes to warm the longer expansion chamber, whereby the rear burner may be ignited without any initial warming of the expansion chamber by an igniting device;

8. The combination with a chamber to be heated, of two main burners, one arranged in said chamber and the other arranged without, the chamber, two air mixing chambers, both situated outside of the chamber to be heated, two gasconducting connections,

one leading from one air mixing chamber to the burner outside of the chamber to be heated and the other leading fromthe other air mixing chamber to the burner within the chamber to be heated, two expansion chamhere for deliveringfuel into the two air mixing chambers, both situated outside of the chamber to be heated, an auxiliary burner arranged to warm her which feeds fuel. within the chamber to iliary burner receiving its supply of fuel from the mixing chamber of said main burner, the gas conducting connection between the main burner of. the chamber to be heated and the mixing chamber of said main burner being provided with a train of jet openings for conducting a flame from the auxiliary burner another auxiliary burner communicating with the mixing chamber of that main burner which is located outside of the chamber and arranged so that the flametherefrom may play on the expansion chamber of the main burner located within the chamber to be heated and also supply aflame to the auxto the main burner be heated, said auxiliary burner of the main burner located within the chamber to be heated.

9. The combination with an expansion chamber, of a mixing chamber receiving gas from the expansion chamber, two burners associated with said mixing chamber, one of said burners being situated at such a distance from the expansion chamber as not to materially affect the temperature thereof, the other of said burners being arranged so as to warm said expansion chamber, means arranged that expansion chem;

to the main burner, and,

for connecting the first mentioned burner with the last mentioned burner so that the ignition of the last mentioned burner efiects the ignition of the distant burner, a second expansion chamber, a mixing chamber receiving gas therefrom, and means connecting with said last mentioned mixing 0hi1111 her for warming the last mentioned expansion chamber and also for warming the first mentioned expansion chamber and for igniting the warming burner of said first mentioned expansion chamber.

JOHN M. KELLEY.

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