US2391585A - Oil burner - Google Patents

Description

Dec. 25, 1945. c, WLLER 3,391,585

OIL BURNER Filed Feb. 8, 1944 INVENTOR, CLARENCE A. MILLER.

Patented Dec. 25, 1945 OIL BURNER Clarence A. Miller, Petaluma, Califl, assignor to Kresky Manufacturing Company, Petaluma. Califl, a corporation of California Application February a, 1944, Serial No. 521,505

1 Claim.

This invention relates to oil burners and particularly to burners of the pot type for domestic or industrial use, employing a gravity feed and wherein the flame burns on the oil surface of the container as distinguished from burners of the jet typ Among the objects of the present invention is the provision of a simple, safe, practical burner of high efliciency and in which an even, steady, white flame is produced.

The present invention represents an improvement over the construction shown in Letters Patent No. 1,912,713, issued June 6, 1933, in the provision of certain features for aiding and increasing combustion and heat distribution, as more particularly pointed out hereinafter.

Having reference to the accompanying drawing:

invention.

Fig. 2 is a side elevation, in partial section, of the same, taken on line 22 of Fig. 1.

Fig. 3 is a cross section taken on line 33 of Fi 1.

Fig. 4 is an isometric view, partially broken away, of a fragment of a range, showing a typical installation, the blower and oil regulator being omitted.

The burner comprises, essentially, two castings A-B telescoping with one another and bolted together,'as at 2, to enclose a mixing or carburetlon chamber 3. The castings AB are shown as elongated to fit lengthwise in the ordinary firebox of a stove or range, although, obviously, they may be of any other desired shape suitable to their environment. The casting A has a well or receptacle 4 formed in its bottom, into which oil for combustion is fed through pipe 5 from any suitable source of regulated supply.

C represents a regulator of conventional design, by which the oil supply is appropriately controlled but forming no part of the present invention.

The upper casting B comprises a top plate 8, with a longitudinal central opening I of sumspaced from the adiacent upstanding walls of.

the lower casting A and are numerously perforated, as at H, whereby air for carburetion and combustion is admitted to the mixing chamber 8.

Wholly enclosing the bottom, sides and ends of the assembled castings A-B is a sheet metal 7 housing I2 which constitutes an air jacket and Fig, 1 is a plan view, in partial section, of the ciently smaller dimensions than those of the mixconduit, through and by which air ior combustion is distributed around and admitted into the mixing chamber 3 through the openings ll.

Air for combustion may be by natural or forced draft. Preferably a motor-driven blower of conventional type and represented at D is suitably secured to an offset end extension 13 of housing 12, whereby air in suitable volume and under suitable pressure is blown into the housing I! and deflected by means of a batlle plate H to each side of, and beneath, the burner to eflect an even distribution of air to the carburetion ports II in the casting B.

This deflector plate l4, it has been found in practice, plays an important role in the production of an even steady flame. The rim flange 8, around'the burner opening 1, provides for better combustion with less air by acting to direct the issuing gases towards the center of the zone of combustion and at, the same time serves as a reflector and deflector to direct some of the heat downwardly and inwardly to aid in the vaporization of the oil in the bottom of the casting A.

These burners are adapted to a wide variety of uses from domestic service to marine use. One of the notable advantages of the burner is its almost immediate response to deliver a hot flame A with no necessary waiting.

I claim:

In an oil burner, the combination comprising a pair of castings enclosing an elongated mixing chamber of generally rectangular cross section, one of said castings forming a bottom box-like member, means for admitting and controlling the flow of fuel to the bottom of said last named casting, the other of said castings forming a cover member with a dependent peripheral skirt telescoping and spaced from the two longer sides of said bottom casting and resting on an internal shoulder formed in said bottom casting, the opposing longer sides of said dependent skirt provided with a plurality of air ports providing flow communication to said mixing chamber, said cover member being provided with an elongated central opening of generally rectangular con-. figuration extending along the length .of said cover member in flow communication with said mixing chamber and defining a peripheral, in-

wardly extending flange, said flange being operative to reflect a portion of the heat generated by the burning gases downwardly into the interior of said mixing chamber to aid in gasiflcation of the fuel in said bottom casting, a housing enclosing and spaced from said castings and forming an air jacket in flow communication with said mixing chamber, an air blower in flow communication with one end of said housing and a baflle of generally rectangular configuration mounted on the interior top wall 01' said housing and disposed at a right angle to the flow oi air from said blower and between said blower and said castings, whereby air supplied to said housing from said air blower is deflected and distributed around the ends of said castings adjacent said blower to said perforated skirt.

CLARENCE A. MIILER.

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