US1337824A

US1337824A - Burner for gaseous fuels

Info

Publication number: US1337824A
Application number: US282872A
Authority: US
Inventors: Edward T Curran
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-03-15
Filing date: 1919-03-15
Publication date: 1920-04-20
Anticipated expiration: 1937-04-20

Description

' E. T. CURRAN.

BURNER FOR GASEOUS FUELS. APPLICATION FILED MAR.15, 1919.

1,337,824, Patented Apr. 20, 1920.

I IN

Hill]... a!!! mmvron E.T CURRAN HIS ORA/E) T 0 all whom it may concern:

EDWARD T. CURRAN, 013 DETROIT, MICHIGAN.

BURNER FOB. GASEOUS FUELS.

Specification of Letters Patent.

Patented Apr. 20, 1920.

Application filed March 15, 1919. Serial No. 282,872.

Be it known that I, EDWARD Detroit, Wayne county, and State of Michigan, have invented new and useful Improvevention to provide a burner having a plu-' rality of burner ports and each burner port provided with separate air intake means and arranged so that the pressure at which the fuel is fed to thejburner port orports will operate to cause the proper amount of air to be mixed or drawn to the combustible gas and thereby promote good combustion.

It is a further object of the invention to provide in a gas burner having multiple burner ports means whereby the gas supplyto one or more of the burner'ports may-be shut off without reducing the pressure of the flow of gas to any one or more of the burner ports, and to also provide means to simultaneously regulate the flow of gas to all of the burner ports.

It is another object of the invention-to provide valve mechanism whereby to shut off the flowof gas to all of the bu'rnerswith the exception of one burner and a restricted predetermined supply of gas delivered to such burner port to serve as a pilot light.

Other objects and advantages will herein after appear.

In the drawing accompanying and f0rming a part of this specification, Figure 1 is a side elevation of a burner partly broken away and partly in section illustrating an embodiment of my invention.-

Fig. 2 is a plan view looking at the top of Fig. 1. s

Fig. 8 is a cross sectional viewof valve mechanism of controlling the gas supply to the burner and showing the manner of' supplying a predetermined and restricted supply of gas to one of the burner ports;*and,

Fig. 4 is a cross'se'ctional view of the main gas supply controlling valve taken substan tiall'y'on the line l tof Fig. 1 looking-in the direction of the arrow.

Similar characters of reference designate like parts through the different views of the drawing.

In the embodiment of the invention shown T. CURRAN, a citizen of the United States, residing in;

in the drawing a central gas supply chamber 5 is connected to a source of gas supply by a pipe 6, and the gas supply to the chamber 5 controlled by a valve 7 of a particular arrangement and construction to be hereinafter described.

The chamber 5 has a burner port in a nozzle 8 (Fig. 2) in line with the axis of said chamber, with gas passages 9, shown as four in number, extending laterally from said chamber, and each of said passages having a nozzle 10 fitted thereto having a burner port to extend in a plane parallel with the port of the central nozzle 8 whereby said ports are grouped about the central port.

A tube 11 engages over the nozzle 8 and is supported upon a seat formed at the base of the nozzle and extending above the nozzle. Similar tubes 12 engage over each of the nozzles 10 and supported on seats at the base of the nozzles, as shown at 13. The tubes 12 extend above the ports of the nozzles 8 and above the central tube 11 and are preferably of sli htly greater diameter than said tube 11. Faclrof the

tubes

11 and 12 are provided with ciroumferentially disposed openings 15, shown as three in number, and located inline with the ends and outlet of orifices ,or ports of the respective nozzles, and said nozzles preferably terminate in a planewith the axes of the openings 15. The gas supply through each of the radial passages 9 to the ports of the respective nozzles 10 is controlled separately by individual valves 14L seated in valve seats in the nozzle fittings, and are shown of the well known plug type and maintained seated by springs 15 as is usual in this type of valve.

The gas supply to the main passageway or chamber 5 and thereby to the lateral passages 9 is controlled by the valve 7 seated in a valve seat in a coupling 16 for connecting the 'chamber 5 with the as supply through the pipe 6. This valve llas a plug 17 to rotatably engage in the coupling 16 and retained therein by a headed screw 18 threaded into the end of the plug. To control the flow of gas from the pipe 6 to the chamber 5 the plug has a transverse slot 18 to permit of the flow of the gas from the pipe therethrough to a port 19 in the coupling leading into the chamber 5, and by so adjusting the valve that the wall of the slot opposite said port 19 the flow of gas through the Valve slot and port 19 to the chamber 5 will be shut oflt'.

As stated the central burner port is also adapted to serve as a pilot light and may therefore be somewhatrestricted with rela tion to the nozzle ports 10. a To adapt the central port as a pilot light the plug of the valve 17 is provided with passages 20 a portion of which extend longitudinally of the plug and another portion radiallvof the plug, said passages having inlets in communication with the plug slot 18 and outlets 22 in the peripheral wall of the plug and which are adapted to be placed successively in communication with a port 23 in the valve casing leading to the chamber 5. By this arrangement a constant and restricted supply of gas is furnished to the chamber 5 and from the latter to the central burner port, and to supply a predetermined limit though restricted supply to said chamber a series of ports 20 are provided one or all of which may be placed in communication with the restricted port 23, and for which purpose a recess 24 is provided in the wall of the valve casing 16 in communication with the port 23 and in line with the outlets 22 of the ports 20. The outlets 22 are so arranged that as the flow of gas is shut off to the port 19 by the valve one of the outlets 22 will be placed in communication with the port 23 which will furnish a sufficient supply of gas to the burner port 8 to serve as pilot light. However, should it be desired to utilize the burner for a slow heating purpose or to maintain something in a warmed state the valve is adjusted so that two or more of the outlets 22 of the ports 20 are in communication with the port 23 through the recess 24:.

By the arrangement of the

tubular chambers

11, 12 as the gas from the respective ports is injected into the portionsof the tubes above said ports such flow of the gas will induce a flow of air through the tube openings 15 to mix with the gas therein, and which liow of air will be in proportion with the flow of gas depending upon the force and rapidity of flow of gas.

Combustion of the combustible mixture of gas and air takes place at the upper ends of the tubes. By the combination and arrange ment of a separate air supply for the respective burner ports of a gas burner I have been able to produce a multiple port gas burner in which the flow of gas from the individual ports is a goodcombustible mixture in which there is no softening as combustion takes place and consequent car bon desposits. Furthermore, by the prov sion of gas controlling means for the individual burner ports I have been able to produce a great flexibility in the control of the gas and thereby in the ,heat'cont'rol so much sought for. The burner is particularly adapted for use in what are termed instantaneous heaters for water as well as for the generation of steam.

Having thus described my inventlon, I claim: 4 r

1, In a gas burner, a central port and a series of ports grouped about said central port, tubes to engage over and project above the ports with openings adjacent the ports, a valve for each of said latter ports to con trol the gas supply to such ports independently of each other, and a valveto control the gas supply to the central port and the ports grouped about the same and adapt the central port as a pilot light.

2. In a gasburn-er, a central port with a series of ports grouped radially about said central port, and valves to shut off and control the gas supply to each of the radial burner ports, and a valve for the main gas supply arranged to deliver a constant predetermined limited supply of gas to the cen-' tral burner port to adapt said burner port as a pilot light when the gas is shut oil from the other burners;

3. In a gas burner, a main gas supply having a burner port in line therewithwith passages extending laterally from the main supply and each passage having a port the axis of which is in a plane parallel with the port of the main supply,a tube'to engage over the port of the main supply and extend above said port, said tube having circumferentiallv disposed openings in line with the port, and a tube to engage over each of the ports of the latter, passages, to

extend above said'ports and the tube of the port of thevmain'supply', and having circumferentially disposed openings in line gith the burner ports for the purpose specied. "7

- 4. In a fgas burner', a main 'gas supply having a burner port in'line therewith with passages extending radially from themain supply and each passage having a burner port tubes to engageover theburner ports having circumferentially disposed openings in line with the burner ports, valves toshut ofi' the gas supply to jeachfo'f the ports of the radial passages one independently of the other, and a valveto control the main gas supply and to furnish a v constant limited supply of gas to said port in line'therewith to adapt said port as a pilot light;

5. In a gas burner, a main gas supply spective burner ports having circumferen tially disposed openings in line with the 7 burner ports, a valve for each of the burner ports of the radial passagesto control the gas supply to said ports one independent of the other, and a valve for the main gas supply arranged to permit of a constant predetermined limited supply of gas to the port in line with the main gas supply whereby said port may serve as a pilot light.

6. In a gas burner, a main gas supply, a port in line therewith, passages radiating from the main supply having ports arranged to be grouped around the port in line with the main supply, a valve for each of the radial passages to control the gas supply to the ports of said passages one independent of the other, and a valve to control the main gas supply and arranged to and means to regulate the restricted gas 25 supply to the central port.

EDWVARD T. CURRAN.