US1769821A - Burner - Google Patents

Description

1930. H. a. BARBER 1,769,821

BURNER Filed April 26, 1923 lNV-NTOR Hue/1 6. 611mm ATTORNEY Patented July 1, 1930 UNITED STATES. PATENT? OFFICE HUGE BUBBOUGES BARBER, OF TOLEDO,

omo, assrenoa 'ro um suuraca cou- BUSTION COMPANY, 1170., O1! TOLEDO, OHIO, A. COBPORATIOHOE NEW YORK runner.

Application filed April 26,

This invention relates to improvements in gas. burners and more particularly to a burner tip for burning mlxtures of natural gas and air. 5 Burners which Operate satisfactorily for burning mixtures of artificial gas and air do not necessarily operate satisfactorily for burning mixtures of natural gas and air. Natural gas has a much lower rate of flame 1o propagation than artificial gas and consequently tends to blowolf at the tip under gas pressures which are materially lower thanrthose which may be successfully used with artificial gas.

It is an object of this invention to provide a burner which shall permit mixtures of natural gas and afirunder relatively high pressure to be successfully burned without the flame blowing off.

In accordance with this invention I form a relatively deep well or tunnel in a body of a suitable heat resisting material and adjacent the bottom of the well I provide an abutment against which jets of a mixture of natural gas and air impinge before emerging from the well, the feed ports through which the gas-air mixture enters the well being formed in the base of the burner.

For a more complete understanding of the invention reference is made to the detailed description taken in connection with the accompanying drawing wherein Fig.1 is a plan view of the burner and Fig. 2 is a cross section therethrough.

The material from which the burner tip is formed may be of any suitable heat resist ing material such as lava and the burner may be considered as comprising a cylinder which is exteriorly threaded at one end to permit its paling screwed into a supply manifold or the The burner is shown as a cylindrical body 10 and in this body is formed a cylindrical well or combustion tunnel 11 having a depth which is preferably greater than its diameter. Adjacent the bottom of the well is formed an annular abutment or shoulder against which some of the feed ports discharge. The abutment preferably takes the form of an.

- 50 undercut 12 having upwardly sloping walls.

192s. swarm. 272,913.

Extending through the base 14: are two series of ports 16 and 18, these ports constituting the feed ports or passages through which the gaseous mixture is introduced into the well. The ports 16 have their axis inclined to the axis of the well in such a manner as to cause the gaseous mixture flowing through the individual ports 16 to impinge against the abutment formed by the undercut and be deflected towards the center of the well.

The angle included by the undercut is preferably a angle and the angle of the inclination of each port 16 with respectto the axis of the well is preferably such that the axis of the port is not perpendicular to the upwardly sloping wall of the undercut but is obli ue with respect thereto. Where the inclu ed angle of the undercut is 45 I prefer to incline each port 16 in such a manner that the angle included between the axis of the well and the axis of an individual port 16 is between 12 and 13. This will causethe axis of the said port 16 to meet the sloping surface of the un-' dercut at an angle of about 58. The angle of impingement of the stream of gas may vary within fairly wide limits without departing are from the spirit of the invention, the angles the mixture is set up within the well with the result that the flame hugs the tip'of the burner without any tendency to blow off even when the pressure of the mixture is relatively high. In actual practice I have found it possible to use pressures as hi h as 8 of water without the slightest ten ency of the flame to blow off.

Prior to my invention it has not been possible to burn perfect or self-sustaining mixtures of natural gas and air in relatively small burners of the tunnel or welltype unless the pressure on the mixture was maintained relatively low. It will be understood that the gaseous mixture to be burned in burners of the t pe disclosed in this application will be substantially perfect mixtures of natural gas and air or in other words such mixtures as will give complete combustion. Such mixtures are commonly known in the art as explosive gaseous mixtures.

What is claimed is:

1. A burner comprising a body having a well, means for introducing gas into the well through the base of the body, an upwardly sloping undercut in the well wall, and means for directing jets of gas against the sloping wall of the undercut.

2. A burner comprising a body having a round well of greater depth than diameter, means for introducing gas into the well through the base of the body, an upwardly sloping undercut in the well wall, and means for directing jets of gas against the sloping wall of the undercut.

3. A burner comprising a body having a wall, means for introducing gas into the well through the base of the body, an upwardly sloping undercut in the well wall, a plurality of gas ports in the base of the body discharging lengthwise of the well, and gas ports around the rim of the base discharging against the sloping wall of the undercut. 4. A burner comprising a body having a well of greater depth than diameter, an upwardly sloping groove in the well wall at its foot, means for introducing gas into the well through the bottom thereof, and means for impinging streams of gas against the sloping wall of the groove.

5. A burner comprising a body havinfga well, means for introducing gas straight orwardly into the well from its bottom, and means for directin separate streams of the same as around t e bottom of the well toward t e center of the well.

6. A burner comprising a body having a well, means for introducing gas straight orwardly into the well from its bottom, and means for directing gas upwardly from the bottlom of the well towards the center of the wel 7. A burner comprising a body having a well of greater depth than diameter, an upwardly sloping undercut around the foot of the well wall, the included angle of the undercut being such that the sloping wall if projected would intersect the axis of the well at a point intermediate between the top and bottom of the well, and gas ports discharging into the well through its bottom, some of said ports opening belowsaid undercut. 7 8. A burner comprising a body having a well of greater depth than diameter, an upwardly sloping undercut around the foot of the well wall, the included angle of the undercut being such that the sloping wall if projected would intersect the axis of the well at a point approximately midway the Ill I CERTIFICATE OF CoRRECTIoN. Patent No. 1,769,821. I Granted July 1, 1930, m

HUGH BURROUGHS BARBER.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring' correction as follows: Page 2, line 22 claim 3, for the word "wall" read "'well; and that the saidLetters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office; I

Signed and sealed thisSth day of August, A. D. 1930 ,Wm. A. Kinnan, (Seal) Acting Commissioner of Patents.

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