Патент USA US2118228код для вставки
May 24, 1938. J.‘ RAVENNA 2,118,228 OIL BURNER Filed Oct. 19, 1936 J66e/v/z Rive 11 21a INVENTOR ATTORNEYS Patented May 24, 1938 2,118,228 UNITED STATES PATENT OFFICE 2,118,228 OIL BURNER Joseph Ravenna, Philadelphia, Pa. Application October 19, 1936, Serial No. 106,429 1 Claim. (Cl. 158—-77) This invention relates to burners and has for the primary object the provision of an e?icient and inexpensive device of this character which will successfully break up crude liquid fuel into small particles and mix the latter with air under pressure or with steam to produce highly combus tible gas or liquid capable of furnishing a maxi mum amount of heat. With these and other objects in view, this in vention consists in certain novel features of con stantially of conical shape, as shown at I 4, and is journaled on the tube 5 with the tube extend ing into the sleeve. A core I 5 is carried by the tube 5 and is located within the inner sleeve I2 and a portion thereof 5 is of a hollow formation, as shown at I6, to form a fuel passage extending in the direction of the conical shaped end I4 of the inner sleeve and is in communication with the space between the in ner sleeve and the core. A plurality of relatively 10 struction, combination and arrangement of parts spaced annular ribs I ‘I are formed on the core to be hereinafter more fully described and claimed. For a complete understanding of my inven -1‘ tion, reference is to be had to the following de ‘and provide therebetween annular grooves I8. The annular ribs I‘! are located between the core and the inner sleeve. The space between the in ner sleeve and the core forms a fuel passage I8 15 Figure l is a vertical sectional view illustrating a burner constructed in accordance with my in and the purpose of the ribs and grooves is to in terrupt the ?ow of fuel through the passage I9 towards the nozzle end of the body I. The pas vention. sage I9 is in communication with the passage ‘ scription and accompanying drawing, in which Figure 2 is a transverse sectional view taken on the line 2—2 of Figure 1. Figure 3 is a vertical sectional view illustrating a modi?ed form of my invention. Figure 4 is a transverse sectional view taken on the line 4—4 of Figure 3. Figure 5 is a plan view illustrating a sleeve hav ing a spiral groove forming one of the parts of the burner. Referring in detail to the drawing, the numeral 30 I indicates a tubular body having its thickness increased adjacent one end, as shown at 2. Said end forms a nozzle and the opposite end of the body has integral therewith a head 3 provided with openings 4. The head 3 forms a support ‘ for a fuel conducting tube 5 arranged centrally of the body. The tube is threaded in an opening provided in the head. The head is provided with a threaded nipple 6 communicating with the tube 5 and has threaded thereto a tube ‘I. The tube 1 is supported by an air intake conduit 8, the lat ter having a passage 9 and a screw threaded nip ple I0 to which a liquid fuel supply is connected. The air conduit 8 is suitably connected to the head 3 for the purpose of directing air into the ; body I by way of the openings 4. Air under pres sure is admitted to- the conduit 8 in any well known manner. The tube 5 forms a support for a rotor I I. The rotor is free to rotate within the body I and the air passing through the openings 4 impinges against the rotor. Secured to the rotor II is an inner sleeve I2. Said sleeve I2 projects a limit ed distance from the nozzle end of the body and is spaced from the wall to form a restricted air 55 passage I3. The inner end of the sleeve is sub I6 and the tube 5 has a plurality of openings 20 to permit the fuel to escape from the tube into the passage I6. A substantially conical-shaped de?ector 2| is arranged on the tube within the conical-shaped end I4 of the inner sleeve I2. The fuel after leaving the tube passes through 25 the passage I6 to the de?ector 2| which deflects said fuel into the passage I9. The fuel passes through the passage I9 to the nozzle end of the burner where it mixes with the air under pres sure received from the passage l3. It is to be 30 understood that the fuel is forced into the tube 5 or said fuel is placed under pressure in some suitable way. Therefore, the inner sleeve being rotated by the rotor relative to the core will bring about a thorough breaking up of the fuel 35 after it leaves the tube 5 and prior to reaching the nozzle end of the burner so that the small particles of fuel will thoroughly mix with the air and become vaporized into a highly combustible mixture capable of producing a maximum amount 40 of heat. It will be seen that the fuel after leav ing the tube 5 is caused to travel away from the nozzle end of the burner .and is de?ected towards the nozzle end of the burner and is interrupted in its ?ow towards the nozzle end of the burner so 45 that it will be thoroughly broken into small par ticles. The inner sleeve being driven by the ro tor I I relative to the core and the ribs thereof will prevent the fuel from adhering to the walls of the sleeve. 50 While I have described this burner as having a rotor for the purpose of driving an inner sleeve, the burner may be constructed as shown in Fig ure 3, wherein all of the parts are stationary, and consists of a tubular body 22 similar in shape 55 2,118,228 to the body I at the nozzle end while the opposite carried by the head and extending axially with end is in the form of a head 23 having a steam conduit 24 and a fuel conduit 25. Extending into in the body and having an outer end terminating between said head and nozzle, said outer end the fuel conduit 25 is a fuel conducting tube 26 and the latter is arranged axially of the body 22 and has secured thereto a spreader or de?ector 21 arranged at the nozzle end of the body. The spreader is formed with a series of stepped an nular faces 28 forming between itself and a core fashioned with radially extending discharge ports air under pressure introduced into said body through said air inlet, a sleeve forming a liquid 10 29 mounted on the tube 26 a mixing chamber 30. The core 29 is constructed similar to the core l5 fuel chamber having a conical shaped inner sec tion secured to said rotor for rotation therewith for discharging liquid fuel under pressure from a said tube, a rotor rotatably mounted on said tube adjacent said head and adapted for rotation by ' de?ning between itself and the tube 26 a fuel and an outer section spaced from said body to passage 3!. Surrounding the core and mounted on the tube 26 is an inner sleeve 32. The inner sleeve is spaced from the ribs of the core and forms a fuel passage 33 communicating with the fuel passage 3|. The fuel escapes from the tube 26 to the fuel passage 3| through ports 34. The provide a restricted air passage between itself and said body, the outer end of said outer section terminating beyond said nozzle, a de?ector ?xed to said tube within said conical shaped section of the sleeve and fashioned with a conical shaped inner end of the sleeve 32 is closed and abuts the 510 head 23 of the body 22 with a tight ?t. The in ner sleeve is slightly spaced from the body 22 to form an air passage 35 communicating with the conduit 24 and with the mixing chamber 30. A portion of the inner sleeve is of an increased thickness and has formed therein a spiral groove 31. The steam under pressure escaping from the conduit 24 travels through the passage 35 to the recess in the outer face thereof, a core spaced from said sleeve to form a liquid fuel discharge passage through said chamber and having a re cessed inner end section ?xed to and embracing the outer end of said tube to form a longitudinally extending liquid fuel passage therebetween Where by to reverse a ?ow of liquid discharged from said tube through said ports, said core having circumferentially extending ribs spaced from the mixing chamber 38 and is given a swirling action by ‘the spiral groove 3?. The fuel traveling through the passages 3| and 33 is thoroughly bro ken up into small particles and when leaving the passage 33 it enters the chamber 30 and be- inner periphery of said sleeve, said inner end of the core extending within the recess of said deflector and spaced from the latter to form up wardly and outwardly extending liquid fuel pas- ; sages therebetween adapted to reverse the flow of liquid fuel from said longitudinally extending comes mixed with the steam. The steam and fuel passage and direct the same against the inner’ in the mixing chamber 36 striking against the 35 spreader or the stepped faces thereof becomes thoroughly mixed and escapes at the nozzle end of the body 22 in a thoroughly mixed and vapor ized condition. Having described the invention, I claim: A burner comprising a body having a head formed with an air inlet at one end and provided with an opening at the opposite end acting as an outlet nozzle, a liquid fuel conducting tube’ periphery of said sleeve whereby the rotation of the latter serves to urge the liquid fuel in flowing condition thereagainst to form a ?lm thereover, said ribs coacting with said sleeve to maintain a predetermined depth to said ?lm on said sleeve for mixture with air from said restricted pas sage at the outer end of said sleeve and to pre vent ?ames from entering ‘the fuel chamber and said liquid fuel passages. JOSEPH RAVENNA.