US1030419A - Oil-burner. - Google Patents

Description

R. B. MQLBLLAN.

OIL BURNER.

APPLICATION FILED APR. 3 1911.

Patented'June 25, 1912.

[9 :4. Ma m INVENTOR A TTOR/VEY UNITED STATES. PATENT OFFICE.

ROBERT BURNS MOLELLAN, OF SEATTLE, WASHINGTON.

OIL-BURNER.

Specification of Letters fatent.

Applicatioafiled April 3, 1911.

Patented J une 25, 1912 Serial No. 618,757.

To all whom it mag) concern:

Be it known that I, ROBERT Burns Mo LELLA v, a citizen of the. United States, residing" at Seattle, in the county of King and State of Washington, have invented a new and useful, Oil-Burner, of which the following is a'specification.

My invention relates to improvements in that class of oil burners adapted to burn oil as a fuel in steam-boiler furnaces, crucible furnaces, stoves, ranges, house-heating furnaces and the like.

The objects of my invention are, to pro-' .a longitudinal sideview" of same and Fig. '3 a cross-sectional view of. same, looking toward thedirection of the arrows from the broken line 3 shown in Fig. 1.

Similar numbers refer to similar parts throughout the several views.

- In oil burners of this class the highest efliciency of the fuel can be attained only when the oil employed is atomized before it reaches the point of c mbustion, irrespective of variations in t e rate of oil consumption. 'Under such conditions a flame of larger volume with higher flame-temperature reaches a longer distance from the.

nozzle or tip of the burner. In burners heretofore employed such conditions have not been-.readily attained. In such burners a changein the rate of flow of the oil would cause the oil to reach the point of combustion in a liquid state in theform of s ray or small drops which makes a smoky fi ame of comparatively small volume "and low flame-temperature with consequent decrease in efficiency of fuel. By my invention all the oil consumed, irrespective of chan s in the rate of'consumption, reaches the pomt of combustion in a finelydivided state mixed wit'hthe pro er proportion of oxygen for producing a ame of large volume and high flame-temperature whereby results the highest efiiciency.

Referring to the drawings I will now describe-the plan of construction and mode of operation of my invention.

4, illustrates the body or frame of my burner which preferably is cast in one piece of metal.

5 shows a screw cap which embodies a feeding tube 6 and which is adapted to screw on to the body 4 of the burner so that the tube 6 projects into thebody 4. 7 represents an elastic washer or gasket, of material suitable for withstanding heat, disposed between the screw-cap5 and body 4. 8 represents a pipe-thread on the outer end of the feeding tube 6 which is adapted to connect with a pipe, not shown, leading to some source of 011 sup ly. Such pipe should, obviousl be prov1ded.with means.

for regulating t erate of oil flow into the burner.

9 and 9 represent inlets adapted to connect with steamipes or air-pipes, not shown,.through which steam or air, or both steam and air may pass into the receiving chamber 10. From the chamber 10 through the central portion of the body lead a'plur'ality of passages 11 formed like segments of a circle by reason of the'spoke like Iongitudinal partitions 12. These passages .11

lead into an intermediate chamber 13 from which other passages 14 of a form similar to passages 11 lead into another chamber 15, which chamber 15 serves as an outlet chamber. The passages 11 and the passages 14 are so disposed circumferentially with respect to each other that the passages 14 are in a line with the partitions 12 as shown in Fig. 3. From the outlet chamber 15 there leads the threaded outlet 17 which is adapted to receive and connect with a pipe, not shown, suitable to serve as the tip of the burner.

, Theoperation of my invention is as follows: Air or steam is admitted into the inlet chamber 10 through inlets 9 and 9 by means of pipes, not shown, provided with cocks .or other means for regulating streams of air or steam from the lnlets 9 and 9 with the result that the oil is broken in fine sprayand then forced through passages 11 into chamber 13 where it has further time to be atomized, thence the now atomized oil is forced through passages 14 into chamber -whereit is joined by additional air which is forced in chamber 15 through the sidev passages 16.' From the outlet chamber 15 the atomized oil (thoroughly mixed with air or steam in proportionsregulated as desired) is forced 'through the threaded outlet 17 thence to the burner tip, not shown, where its com- .bustion results in high efiiciency, It will be observed that themixed air and oil spray in its progress from chamber 10 to chain-- ber 15 comes in contact with large areas of metal which retards or retains such portion of the oil as stillis in liquid formuntil it becomes atomized.

Having thus described my invention, what I claim is: i

In an oil burner of the class described, a feed pipe for oil, inlets adapted each for connection with an independent source of compressed gaseous fluid, a receiving chamber, an intermediate. chamber, an outlet chamber adapted to connect with a burner tip; independent side passages communicat-.

seal.

ROBERT BURNS MCLELLAN.

Witnesses: 4

- H. A. MUFFLEY,

Mrs. W. METZENBAUM.

I a i of March, 1911 hereunto set my hand and

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