US799949A - Oil-burner. - Google Patents

Description

PATENTED SEPT. 19, 195.

H. B. STILZ.

OIL BURNER..

APPLICATION FILED H1B. 2a. 1995.

lnvenor ANDREW, n emma au, Puoromrnosmlmgna Mmmm, u. c.

l WTnesz-Se UNITED sTATEs PATENT OFFIOE.

OIL-BURNER.

Specicatonof Letters Patent.

Patented Sept. 19, 1905.

Application iled February 28, 1905. Serial No. 247,648.

To ct/Z whom t may concern;

Be it known that I, HARRY B. STILz, a citizen ofthe UnitedStates, residing at 1015 East Columbia street, 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 oil-burners in which the oil is reduced to an atomized state on issuingA from a nozzle preparatory to its combustion in a supply of fresh air from an outside source; and the objects of my improvement are, rst, to supply a burner which will completely burn an oil consisting of a mixture having various densities and boiling points, such as crude petroleum, without the use of an external atomizing agent, such as compressed air or steam; second, to provide a means for boiling off the more volatile constituents of the oil and separating the vapors generatedpthese vapors to be used in. atomizing the oil remaining when the two are brought together in a suitable nozzle; third, to furnish a means of generating the vapor at a rate automatically kept equal to the rate at which such vapor is used in the nozzle; `fourth, to regulate the pressure within the system, and hence the intensity of the iiame from the nozzle, by means of a reliefvalve in the oil-supply pipe between the pump and the vaporizer. I attain these objects by thesystem illustrated in the accompanying drawings, in which- Figure l is a plan view, and Fig. 2 is an elevation.

The oil is pumped from the supply-tank T into the vaporizer H by means of the pump I?, operated mechanically from an external source. The burner E supplies heat to the vaporizer, so that when the oil circulates through the coils c from the bottom and into the top of the cylinder O the more volatile constituents are vaporized by the heat from said burner. The vapors collecting in the top ofthe cylinder O force the surface of the oil therein to a lower level, the surplus oil escaping to the pressure-reservoir R until a determined pressure is produced by the air compressed above the oil in said reservoir, when the reliefvalve V will open, and the surplus oil escapes into the su pply-tank T. Vhen the cylinderO becomes full of vapor, no oil can enter the coil c and no more vapor is produced. As the vapor is carried off from the top of the cylinder O for use the reduced pressure thereby will permit the oil to enter at bottom, and on passing through the coil a part of same will be vaporized as before. The vapor thus separated is entered into the nozzle N through the pipe f, being superheated in its passage down through the vaporizer H. The oil, deprived of its more volatile parts, 'enters the nozzle through the pipe g, and on passing through the small opening at the center of the nozzle is met by the rapidly-moving vapors. The mixture on escaping from the nozzle enters the furnace in a thoroughly-atomized l:["rom nozzle.

The burner e' derives its supply of combustible from the vapor-pipe f, and an auxiliary means will be provided for heating the vaporizer at start.

The vaporizer is inclosed in an insulatingcasing I, provided with an opening at the bottom for the entrance of the vaporizing-flame and with an opening at the top for the escape of the products of combustion from said iiame. The cylinder O is located near the coil inside the casing; but the pressure-reservoir Ris located on the outside, where it will not be affected b v the heat.

"I prefer to show the system described as being a general case. `For a burner used under a boiler the vaporizer would consist of coils c and cylinder O, placed inside the furnace at a location giving the proper temperature to generate the desired amount of vapor, an auxiliary heater being provided for the vaporizer to start the process.

The mechanically-operated pump could b omitted by placing the supply tank T at a height above vaporizer suiicient to produce the desired pressure by the head of oil. With the supply-tank so located the pressure-reservoir R and the relief-valve V would also be omitted as being unnecessary.

When the oil is to be atomized in a space under a high pressure, as inside the cylinder of an internal-combustion engine, the mechanically-operated pump and the system substantially as described will be required. The vaporizing in this case, however, can be effected by the heat from the exhaust-gases from the engine being made to pass through the vaporizing-chamber.

IOO

IIO

I am aware that prior to my invention oilburners have been made in which the oillis atomized for combustion. Itherefore do not claim such a burner broadly; but

What I do claim as my invention, and desire to secure by Letters Patent, is-

1. In an oil-burner the combination of an atomiZing-nozzle, a Vaporizer provided with a chamber for containing oil and the .vapor generated therefrom` a means of sup plying` oil to said chamber, ameans of supplying heat to the vaporizer, a conduit for conveying oil from the bottom of said chamber to the atomizingnozzle and a conduit for conveying vapor from the top of said chamber to the atomizingnozzle.

Q. In an oil-burner the combinationwith an atomizing-nozzle,-a vaporizer provided with a chamber for containing1 oil and the vapor generated therefrom, a means oi' supplying heat to the Vaporizer and conduits from the top and bottom of said chamber to the atomizing-nozzle, of a pump for supplying oil to the vapori'zer under pressure, an auxiliary reservoir in the form of an air-chamber communicatively connected at its bottom with the oil-supply pipe to vaporizer and a'relief-valve inisaid-oil-supply pipe.

3. In an oil-burner the Combination with an atomiZing-nozzle, of a cylinder with coils of.

scribing Witnesses.

HARRY B. STILZ. Witnesses:

THEO GOMMENTZ, B; R. Woon.

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