US2752990A

US2752990A - Liquid fuel burner

Info

Publication number: US2752990A
Application number: US461196A
Authority: US
Inventors: Homer C Kemper
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-10-08
Filing date: 1954-10-08
Publication date: 1956-07-03
Anticipated expiration: 1973-07-03

Description

y 3, 1956 H. c. KEMPER LIQUID FUEL BURNER Filed 00%.. 8, 1954 m r a m m H 772mm w 0m United States Patent() LIQUID FUEL BURNER Homer C. Kemper, Kansas City, Mo.

Application October 8, 1954, Serial No. 461,196

2 Claims. (Cl. 158-53) The present invention relates to a liquid fuel burner and more particularly to a burner designed for use with liquid petroleum gases, and one having a chamber for converting the liquid to a gas by vaporizing.

The principal object of the present invention is to provide a liquid fuel burner having a chamber into which liquid fuel is introduced for vaporizing and which chamber is not in contact on any of its Walls with the combustion tube of the burner.

Another object of the present invention is to provide a liquid fuel burner which will not carbon up within its combustion tube for the reason that no part of the combustion tube comes in contact with the chilling liquid fuel.

A further object of the present invention is to provide a liquid fuel burner having a housing in which a partition separates the housing into an upper chamber and a lower chamber which are in communication with each other, the lower chamber of which is used to convert liquid petroleum gas to a gaseous fuel for pre-heating in the upper chamber before introduction to the combustion tube.

These and other objects and advantages of the present invention will be fully apparent from the following description when taken in conjunction with the annexed drawings, in which:

Figure 1 is a side view in elevation partially broken away, of the present invention;

Figure 2 is an end view in cross section on line 2-2 of Figure 1;

Figure 3 is a side view in cross section on line 3--3 of Figure 2; and

Figure 4 is a view in perspective of the partition used in the housing of the present invention.

Referring in greater detail to the drawing in which like numerals indicate like parts throughout the several views, the invention is seen to consist of a horizontally disposed tubular housing having end walls 11 and 12.

A horizontally disposed partition 13, having a semicylindrical section 14, is positioned within the housing 10 and is connected along its sides and ends to the side walls and end walls of the housing in liquid tight condition.

The partition 13 is formed with a plurality of ports 15 along each side of the flat shelf sections 16.

A combustion tube 17 formed with an open inlet end 18 and a flared open outlet end 19 is positioned axially within the housing 10 and arranged concentrically with respect to the outer wall of the housing and spaced from the partition 13.

A conduit 20 connects the space above the partition 13 which forms an upper chamber with the nozzle plate 21 which is threadedly secured to the end of the conduit 20 and is provided with an orifice 22 for the delivery of fuel to the combustion tube 17.

Another conduit 23 connects the space below the partition 13 which forms a lower chamber, to a source of liquid petroleum gas under pressure.

A coupling 24 is shown connected to the conduit 23 and is provided with a plate 25 having a conical restriction orifice 26 for the purpose of limiting the flow of the liquid petroleum gas to the lower chamber.

It has been found that in the delivery of liquid petroleum gas to such a chamber as is formed by the partition which divides the housing 10, much heat is taken up and a chilling eifect is noted to the walls of that chamber. If the walls of the combustion tube are in direct contact with the walls of the chamber in which this liquid petroleum fuel is converted to gas, a serious amount of carbon is formed on the inner Walls of the combustion tube, preventing complete combustion and producing a smoky flame.

It will be seen, therefore, that the advantage of the present invention lies in the fact that the partition 13 forms the upper wall of the lower chamber and receives radiated heat from the combustion tube 17 without effecting chilling of that tube. The resultant flame is entirely smokeless, and the burner, after it is preheated and ignited, can be operated for long periods of time without further attention.

While a single embodiment of the present invention has been here illustrated and described, it is believed that other embodiments may be made and practiced within the scope of the appended claims without departing from the spirit of the invention.

What is claimed is:

1. A liquid fuel burner comprising a horizontally disposed tubular housing having end walls, a horizontally disposed partition having a semi-cylindrical section disposed concentrically within said housing dividing the space within said housing into an upper chamber and a lower chamber, a combustion tube having an open inlet end and an open outlet end axially positioned within said upper chamber in spaced relation to said semi-cylindrical section and supported in said end walls and having the inlet end exteriorly of and spaced from one of said end walls and having the outlet end exteriorly of and spaced from the other of said end walls, said partition being formed with ports connecting in communication said upper and lower chambers, conduit means for delivery of liquid fuel to said lower chamber, and conduit means having one end in communication with said upper chamber and having the other end adjacent to and in alignment with respect to the inlet end of said combustion tube for delivery of gaseous fuel as vaporized in said lower chamber from said upper chamber to the inlet end of said combustion tube.

2. A liquid fuel burner comprising a. horizontally disposed tubular housing having end walls, a horizontally disposed partition having a semi-cylindrical section disposed concentrically within said housing dividing the space within said housing into an upper chamber and a lower chamber, a combustion tube having an open inlet end and an open outlet end axially positioned in said upper chamber in spaced relation to said semi-cylindrical section and supported in said end walls and having the inlet end exteriorly of and spaced from one of said end walls and having the outlet end flared and exteriorly of and spaced from the other of said end walls, said partition being formed with ports connecting in communication said upper and lower chambers, conduit means for delivery of liquid fuel to said lower chamber, and conduit means having one end in communication with said upper chamber and having on the other end a nozzle positioned adjacent to and in axial alignment with respect to the inlet end of said combustion tube for delivery of gaseous fuel as vaporized in said lower chamber from said upper chamber to the inlet end of said combustion 5 tube.

References Cited in the file of this patent UNITED STATES PATENTS 10 2,585,088 Burch Feb. 12, 1952 2,693,229 Fagan Nov. 2, 1954