US2282989A

US2282989A - Oil burner

Info

Publication number: US2282989A
Application number: US310745A
Authority: US
Inventors: Lancey Ralph W De
Original assignee: Miller Co
Current assignee: Miller Co
Priority date: 1939-12-23
Filing date: 1939-12-23
Publication date: 1942-05-12
Anticipated expiration: 1959-05-12

Description

W Delancey,

R m N E V lqh m ii m u m f// r m B |1|| Il y|l-.fl.. ll .i I L: In h. I I l I I I ll: 1 I HHHHC May 12, 1942.

ATTORNEY Patented May 12, 1942 2,282,989 OIL BURNER Ralph W. De Lancey, Meriden, Conn, assignor to The Miller Company, Meriden, Conn., a corporation of Connecticut Application December 23, 1939, Serial No. 310,745 4 Claims. (of. 158-94) The present invention relates to oil burners, and is more particularly directed toward an improved air diffuser for use with wick type oil burners.

As ordinarily constructed the air diffusers for oil burners employ perforated sheet metal stampings adjacent the wick to direct air toward the inner surface of the wick adjacent its upper end.

The present invention contemplates a form of air distributor which employs a coil of wire supported in such a way as to receive a predetermined portion of the air from underneath and diffuse and distribute this air so that it is passed out toward the wick in a finely and evenly diffused manner throughout its entire periphery.

The accompanying drawing shows, for purposes of illustrating the present invention, one of the many embodiments in which the invention may take form, it being understood that the drawing is illustrative of the invention rather than limiting the same.

In the drawing:

Figure 1 is a vertical sectional view through a burner embodying the present invention;

Figure 2 is a sectional view taken on the line 2--2 of Figure l; and

Figure 3 is a fragmentary vertical sectional view through a modified form of construction.

For purposes of illustrating the present invention it is shown as being embodied in a burner of the type employing a blast of air under pressure. It, however, is suitable for use in burners of the'type in which draft is produced by the chimney.

In Figures 1 and 2 the wick is indicated at Ill and the wick tube at l I, I la. The wick tube is received in an outer cylinder I2 which carries a constricting cylinder l3 which extends up to the region of the upper edge of the outer wick tube Ila. A fixed axially disposed tube l4 supports a vertically movable plunger or rod i5 which carries a flame spreader I6 and a cylinder ll, this cylinder dividing the space inside the wick tube into two channels through which the blast of air coming up inside the wick tube passes.

A spider member l8 supported from the usual flange [3 in the tube l I is apertured as indicated so that the air can pass up through it and sup ports a channel shaped ring 20 which may be made of steel or insulating material of a nature to withstand the heat. The channel shaped member carries an air diffuser 2| in the form of a coil of wire. This wire is preferably some form of heat resisting wire which will withstand the temperatures adjacent the wick and retain its form. It extends all the way around inside the wick or may be interrupted as indicated in my application Serial No. 310,746, filed concurrently herewith to accommodate an electric igniting coil.

The channel shaped member has openings 22 in the bottom to permit a predetermined portion of the air passing up outside the cylinder H to enter into the diffuser coil 2|. This air passes between the windings of the coil and is distributed and diffused about so as to provide an extremely uniform, well difiused stream of air which passes out through the coil and toward the wick. The channel 20 which supports the diffuser coil may be readily removed after the flame spreader has been lifted.

As shown in Figure 3 the channel 29' is provided-with two rows of holes 22'. In all cases the size and distribution of the holes and the size of thewire and the closeness of the coil are such as to produce the most efficient combustion. These sizes are determined experimentally.

It is obvious that the invention may be embodied in many forms and constructions within the scope of the claims and I wish it to be understood that the particular form shown is but one of the many forms. Various modifications and changes being possible, I do not otherwise limit myself in any way with respect thereto.

What is claimed is:

1. In an oil burner, a wick tube, a wick, and an air diffuser including a coil of wire disposed inside the wick tube adjacent the wick, and having air passages adjacent the coil.

2. In an oil burner, a wick tube, a wick, an air diffuser including a coil of wire disposed inside the wick tube adjacent the wick, and a channel shaped receiver for the coil of wire, thereceiver being apertured to admit air below the coil.

3. An oil burner comprising a Wick tube, a wick, a flame spreader above the wick, a tubular imperforate support for the spreader adapted to form an annular air passage betweenit andthe wick tube, an upwardly opening channel shaped member adjacent the top of the wick to constrict said passage and having openings in the bottom thereof, and a coiled air diffuser in the channel shaped member.

4. An oil burner comprising a wick tube, a wick, an upwardly removable flame spreader, an upwardly removable ring below the top of the wick, and inside the wick tube, and an air diffuser in the form of a coil of wire secured to the ring, the ring having air passages adjacent the coil. 7

RALPH W. DE LANCEY.