US742777A - Hydrocarbon-burner. - Google Patents

Description

No. 742,777. PATENTED OCT. 27, 1903.,

o. PALKBNWALDE.

HYDROGARBON BURNER.

APPLICATION FILED NOV. 2l, 1902. N0 MODEL.

UNITED STATES Patented October 27, 1903.

PATENT OFFICE.

OSCAR FALKENWALDE, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE- HALF TO CHARLES F. STAUFFEN, OF BALTIMORE, MARYLAND.

HYDROCARBON-BURNER.

SPECIFICATION forming part of Letters Application filed November 2l, 1902. Serial No.132,278.

Patent No. 742,777, dated October 27, 1903.

(No model.)

To tZZ'wv/om, it 17m/y concern.-

Beit known that I, OSCAR FALKENWALDE, residing in the city of Baltimore and State of Maryland, have invented certain new and useful Improvements in Hydrocarbon-Burners, of which the following is a specification.

My invention, which in its general nature relates to improvements in hydrocarbon or gaseous-fuel burners,- is more especially designed for use in connection with that type of burners now utilized for domestic purposes in cooking-ranges and heating-stoves and in which ordinary kerosene-oil is the fuel used.

In the practical application of the type of coal-oil burners referred to it has been found that the decomposition of the gaseous vapor of the coal-oil is more or less incomplete, and by reason thereof considerable difficulty is found to obtain the desired heating-flame quality of the burners. Furthermore, the incomplete combustion of the oil causes a too rapid consumption of the fuel and the consequent waste of heat by reason of an improper mixture of oxygen with the gaseous vapor and also the carbonizing of the burner and the stove with incrustations or deposits, and particularly creates a disagreeable blowing noise.

The above and other objections, hereinafter referred to, I seek to overcome by my presentinvention,which generically comprehends a slow or drip feeding means for conveying water into a discharging-nozzle supported outside the hot zone of the burner, whereby to but partly convert the water into a moist vapor and for discharging the water in a direction crossing through beside or below the now of the gaseous-vapor discharge from the burner needle-valve or ejector to intermix with the said gaseous vapor.

In its vmore subordinate features my present invention embodies certain arrangement and peculiar combination of parts, all of which will hereinafter be fully explained, and specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which- Figure 1 is a perspective view of an oilburner equipped with my present invention. Fig. 2 is a longitudinal section thereof. Fig.

.of oil-burner which is 3 is a View of my water-dripping attachment separated from the burner.

Y In the drawings I have illustrated my pres- Y ent invention as applied to the special form fully disclosed in and forms the subject-matter of my copending application, Serial No. 122,891, and while my present improvements are especially designed for use with the said form of burner I desire it understood that the same in its generic nature is arranged to be used in connection with any other form of oil-burner in which the gaseous fuel is ejected into a retort or combustion-chamber.

Y The burner shown comprises a body or casting 1, having a series of transversely-arranged dues b, that extend entirely across the casting 1, and said iiues b are bisected by a central longitudinal bore or flue a, which extends from the straight end :r of the casting 1 to the tapered end 1c, as clearly shown in Fig. 2, and at the tapered end the bore a is forked and extends divergingly outward to form two oppositely-extended discharges ct a.

c c designate a series of air-fines that extend through the bottom of the retort and communicate with the iues b, ando is a smaller air-flue that joins with the central flue or bore a.

2 designates a supporting-base having side and end iianges and provided with a series of longitudinal pockets to receive an absorb- 'ent body 3, it also having a series of air-slits 2X, which extend the length of the said base and through which air is fed under the retort, the latter being supported sufficiently above the slits 2 to permit of a proper circulation of air under the retort and in the air-iiues c c. At one end the base 2 is extended, as at 2a, and on the said extension is mounted an absorbent 2", which is disposed directly under the needle-valve or fuel-ejector g2 to collect the drippings therefrom.

F designates a feed-pipe which connects with the source of oil-supply, and the said pipe joins with an inside asbestos-covered generator-pipe G, that extends up in front of the tapered end of the casting 1 between the fines u. a and connects at the upper end with a horizontal section G', supported overthe top IOO of the casting 1,but not in direct contact therewith. At the rear end generator-pipe sectionG has a pendent member g, which ter, minates in a Valve-chamber g to receive the needle-valve or ejector devices 92,01? any wellknown construction charge the tluid or vaporized fuel into the bore or main Hue of the casting 1.

In the form of burner as described in operation the dames practically surround the body of the casting land pass upwardly over the portion G of the generator G. Having generally outlined the construction and op eration of the burner, I shall now proceed to describe the essential features of my present invention.

l0 designates an ordinary-shaped waterholding tank or reservoir supported inany desired manner outside of the range or heating-stove and at such a place where it can be conveniently filled with Water. As shown, the tank 10 has a feed or offtake pipe l1, having a controlling valve lla, which is braced on abracket-piece l1b on the pendent pipe-section g, and its end joins with a discharge-nozzle llc, whichfis extended into the bore a and has its outlet of such size as to permit the Water to escape in drops, and said nozzle I hereinafter term the drip-nozzle. The nozzle 1lL extends a short distance into the bore a in a plane above the 'flame-discharge from the burner, whereby the Water is dropped in a direction crossing said Hamedischarge or below or on the side of the dame.

The pipe 10 may be of any desired metal and is so supported as to be outside of the hot zone of the burner, whereby to act as a simple and inexpensive means for conveying water in drops into the burner-flame at a point outside of the retort or body l. mixing with the gaseous vapor from the burner acts as a resistance to the vapor, and as it diffuses within said vapors it materially aids in loosening the carbon and nitrogen, and, furthermore, by taking up the hydrogen and oxygen a more perfect decomposition of the oily vapors is effected and the odor of the oil completely overcome. Again, the mixture of the aqueous fluid vvapors creates a more uniform draft irrespective of the variable flow of the fuel-feed and the disagreeable noises incident in force,

and arranged to dis- The waterv with the gaseous l. In combination with a burner of the class described, said burner including a casting having a combustion-chamber comprising a central bore and transverse bores intersecting such central bore, and a vapor-ejector discharging into' said central bore, of a watersupply and an otake-pipe therefor, supported outside of the hot z one of the burner, and including a drip-nozzle projecting into the bore of the casting at a point in a plane above the vapor-ejector and at the same end into which the ejector discharges, whereby to discharge Water in the liquidrstate in drops directly into the combustion-chamber as set forth. i

2. In a hydrocarbon-burner, a combustionchamber, having a central longitudinal bore and transverse bores intersecting said central bore, a base, having an extension for said cornbustion-chamber, said base and extension adapted to hold an .absorbent material, a vaporizer mounted over the combustion-chamber and out of contact therewith, a vapor-injector connected to said vaporizer and projecting over said extension to the base, means for injecting Water in the combustion-chamber in drops as set forth.

3. A hydrocarbon-burner, including a combustion chamber said combustion chamber 'having a longitudinal and transverse bores,

and vertical bores extending from the longitudinal and transverse bores to the bottom of the combustion-chamber,a base for said chamber said base adapted to receive absorbent material, a vaporizer arranged above the combustion-chamber in alinement with the longitudinal bore of the chamber, an injector connected with the vaporizer and in alinement with the longitudinal bore from the extension of the base, means for injecting water into the combustion-chamber at the 'entrant end ofthe longitudinal bore and in advance of the injector, for the purposes described.

OSCAR FALKENWALDE. Witnesses:

JOHN H. GUNDERsDoRF, WALTER L. CLARK.

Images