US2416383A - Oil burner - Google Patents

Description

Feb. 25, 1947. A 2,416,383

on, BURNER Filed March 4, 1944 INVENTOR. FRANCO/5 1/. Burma Patented Feb. 25, 1947 UNITED STATES PATENT OFFICE OIL BURNER Francois Uldctge Dumas, Spencer, Mass.

Application March 4, 1944, Serial No. 524,990

3 Claims.

Objects of the invention include the provision of a novel and improved oil burner including an improved means for priming, comprising an oil reservoir located adjacent to a device which will quickly preheat the oil; the provision of an improved oil burner including an interior heating chamber which will preheat the oil prior to burning and will thus improve the action of the burner and economy in burning; and the provision of a more economical oil burner providing novel means for air intake and increasing the air directed to the fiame area. 1

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is a vertical section through a device according to the invention;

Fig. 2 is a detail perspective view of a modification thereof;

Fig. 3 is a view similar to Fig. 2 showing a further modification.

In the drawings the reference character Ill represents a support on which the oil burner is to be mounted and this is accomplished by securing a circular sheet metal skirt I2 to the support. I

provide a bottom element M which includes a depending part 96 providing a chamber I8 for the oil and which is connected to the oil reservoir by means of a pipe 29. A ball arrangement 22 is provided for use in mounting the'bottom element It on a stand or bracket.

The chamber I 3 extends vertically and opens into a cup-shaped reservoir at 24 formed by the interior surface of the bottom element I 4. The oil will be fed upwards tothe point of vaporization along the entire surface of the interior of element I4 and will be guided by a sheet metal element 26 which has a shape conforming to the cup-shape of element I 4. The element 26 is spaced from element I 4 to provide the passage 28 for the oil. Element 26 is raised as shown at 39 to provide a reservoir for the oil for a purpose to be described, it being understood that element M and element 2% are circular in shape, and a vent 3! is provided;

At the upper limit of the element I4, I provide a circular channel 32 which may contain a wick if desired. The element 26 terminates in a flange 34 which supports a cylindrical closed element 36, the latter being open at the bottom and closed at the top by a plate 38. Plate 38 is supported on the element 36 as shown, and independently mounts a perforated cylinder 40 which extends down and stops just short of the opening of chamber 28 as is clearly shown in Fig. 1, An exterior perforated cylinder 42 is mounted on ele ment It by means of a shoulder 44 and the cylinder 42 is closed at the top by a perforated plate it. The skirt I2 is secured to the exterior of cylinder 52 as shown in Fig. l and is larger than the diameter of element I4, being bent in at'its top as at E8 to be secured. This arrangement provides that an air draft will be directed from the bottom of the burner directly to the combustion zone at the exterior of element I4, the draft being restricted to enter between cylinders 42 and M9, since the skirt I2 and element I4 are imperforate. This draft enters the space between cylinders 40 and 62 through a series of holes 50. Centrally of plate 38 I provide a cylinder 52 which depends therefrom and extends lower than the other cylinders, stopping just short of the upper part of the bulge 3B for the purpose of preheating oil located within this bulge.

In the operation of the burner the best draft possible will be induced between skirt I2 and the element 54 and this draft will be directed exactly to the point of burning of the oil. The oil is led up through chamber 23 and issues in vaporized state under the lower edge of cylinder lll, The imperforate cylinder 36 will obviously become heated to a high degree and will cause the cup-shaped chamber formed by element 26 to be highly heated whereby the oil in chamber 28 will become quickly preheated increasing the vaporization and economy in. burning oil. In addition, the central cylinder 52 will cause the same effect to an increased degree and the heat in cylinder 52 will be directed to the bulge 30 thus increasing the heating of the oil contained therein. The construction above described will greatly contribute to economy of burning of the oil and will also contribute to ease in maintaining the burner in good operating condition. The

modification of Fig. 2 dispenses with channel 32 and instead provides air channels 54 leading from the air draft between skirt I2 and element I4 directly to the oil vaporizing area so that the Wick may be dispensed with and the draft increased.

Fig. 3 is a modification of the Fig. 2 device and provides in addition to the construction there shown a series of oil receiving recesses 56 which are connected by a channel or the like 58 for passage of the oil from recess to recess.

The construction of Figs. 2 and 3 Will provide suflicient air so that the wick is notnecessary, the issuing oil being immediately vaporized and burned and for this reason it may be that in some 3 instances it will be convenient to dispense with holes 511 and secure skirt H2 at a point 60 as shown in Fig, 3,'thus forcing all the air up through passages 54, This construction may be used in either the case of Fig, 2 or Fig. 3.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. An oil burner structure comprising a base element in the shape of a cup, a cup-shaped ele-- ment interiorly of the base element and spaced therefrom to provide a passage for oil between said elements, oil inlet means in the base element to supply oil to said passage, an upstanding'pen forated cylinder on the base element, a coaxial perforated cylinder of smaller diameter mounted with the lower edge thereof between and slightly spaced from the base element and the second named element, 9, depending imperforate skirt surrounding the base element in spaced relation thereto, and secured adjacent to the lower edge'of the first named cylinder to provide an air chame ber between the skirt and base element, said burner structure being provided with air passages from the air chamber to the space between the two perforated cylinders.

2. An oil burner structure comprising a base element in the shape of a cup, a cup-shaped ele ment interiorly of the base element and spaced therefrom to provide a passage for oil between said elements, oil inlet means in the base element to supply oil to said passage, an upstanding perforated cylinder on the base element, a coaxial perforated cylinder of smaller diameter mounted 5 with the lower edge thereof between and slightly spaced from the base element and the second named element, a depending imperforate skirt surrounding the base element in spaced relation thereto, and secured adjacent to the lower edge of the first named cylinder to provide an air chamber between the skirt and base element, the base member being provided with air pas-sages from the air chamber to the space between the two perforated cylinders.

3. An oil burner structure comprising a base element in the shape of a cup, 3, cup-shaped element interiorly of the base element and spaced therefrom to provide a passage for oil between,

said elements, oil inlet means in the base element to supply oil to said passage, an upstanding perforated cylinder on the base element, a coaxial perforated cylinder of smaller diameter mounted with the lower edge thereof between and slightly spaced from the base element and the second named element, a depending imperforate skirt surrounding the base element in spaced relation thereto, and secured adjacent to the lower edge of the first named cylinder to provide an air chamber between the skirt and base element,

the wall of the first named cylinder being provided with air passages from the air chamber to the space between the two perforated cylinders.

FRANCOIS ULDEGE DUMAS.

a'srEaENpns CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 497,459 Ruppel May 16, 1893 479,690 Wilder et a1 July 26, 1892 525,038 Wilder et a1 Aug. 28, 1894 669,303 Glazier Mar. 5, 1901 1,439,186 Mummery Dec. 19, 1922 1,764,? 94 Johnson et al June 17, 1930 2,040,298 Douglas May 12, 1936 2,047,303 Albree July 14, 1936 2,055,462 Baker et a1 Sept. 29, 1936 2,123,085 Winsor et al July 5, 1938 625,124 Ruppel May 16, 1899 1,365,005 Mackay Jan. 11, 1921 1,961,072 Newberry et a1 May 29, 1934 FOREIGN PATENTS Number Country Date 158,320 Austrian Mar. 26, 1940

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