US2671500A

US2671500A - Burner mounting in a gas heater

Info

Publication number: US2671500A
Application number: US109137A
Authority: US
Inventors: Don F Jones
Original assignee: Motor Wheel Corp
Current assignee: Motor Wheel Corp
Priority date: 1949-08-08
Filing date: 1949-08-08
Publication date: 1954-03-09
Anticipated expiration: 1971-03-09

Description

March 9, 1954 JONES 2,671,500

BURNER MOUNTING IN A GAS HEATER;

Filed Aug. 8, 1949 3 Sheets-Sheet 1 Don F. done;

BY 5W.

March 9, 1954 D. F. JONES BURNER MOUNTING IN A GAS HEATER 5 Sheets-Sheet 2 Filed Aug. 8, 1949 INVENTOR. Don 1. (Jones BY Alforneus March 9, 1954 D. F. JONES BURNER MOUNTING IN A GAS HEATER 3 Sheets-Sheet 3 Filed Aug. 8, 1949 INVENTOR. 00/7 A JOfleS BY Afforneqs- Patented Mar. 9, 1954 D on F. Jones, Lansing, Mich, assignor to Mfotor Wheel Corporation, Lansing, Mich., a corporation of Michigan Application August 8, 1949, Serial Nb. 109,137 teatime. (Cl. 158-7) This invention relates to a burner mounting in a gas heater and is more particularly concerned with the mounting of a burner in ages space heater so that the burner can be easily installed, readily disassembled from the heater for servicing and yet positively secured inplace so that it is not necessary to either tie the burner down or remove it while shipping or handling the heater.

This invention contemplates a mounting for a gas burner, particularly in a space heater, which is extremely simple and which facilitates the assembly of the burner in, and the disassembly of the burner from, the heater and which securely holds the burner in position under all Fig. is a fragmentaryfront elevation of my gas space heater illustrating theassembling of the burner in the heater.

Fig. 6 is a detail section'taken along the line 6-6 of Fig. 2.

Referring more particularly to the drawings there is shown a gas space heater comprisiriga combustion chamber 1 'communicat'ingwith

dual heat exchangers

2 and 3 which iriturnare connected to the flue outlet pipe 4'. The'combustion chamber and heat exchangers areenclosed by an outer casing 4 supported on'legs'fi andhaving at one end an opening 6 closed by a door 1 hinged to swing about a vertical axis; Opening 6 provides access to the burner described below;

The end of the combustionchaniber adjacent the Venturi tube ll and'th'ence to the burner 9.

through an orifice spud or tubal; which projects into an orifice at" the end of Venturi tube '1 I as at I3; Tube I2 is threaded into a conventional gas control mechanism l 4 which is mounted "onfthe outside '"or" casing'll by'hracketfii. "me-vertical side walls of combustion chamber I are designated I6 and IT. The bottom of combustion chamber I is preferably open to atmosphere in accordance with the well established practice in the gas space heater art. The burner 9 is supported approximately midway between its ends by a Supportin the form of a bolt I8 having an arcuate ofiset lll which forms a saddle for the burner. Theboltissupported at its opposite ends in openings and 2| in the side wallsll and lfi. respectively ofgthe combustion chamber. The mounting; for the closed end oftheburner that i s,the end remote from the Venturitube, consistsof a bolt 22 likewise supported at its opposite ends in the side walls It and "of the combustion chamber. 'Ifhe openingB in the end wall 23 of the combustion chamber is rectangular but the lower edge 24 of the opening is provided with? semi-circular notch 25'which acts asa saddle in which the Venturi tube ll rests or is seated adiacent its point of connection with burner 9. The Venturi u i hel ne d .25 pc e late Zfiw is ured be he c b ti cham r by. bol 21. The plate 26 is provided with two integral legs 28 which are positioned on the insideof end Wall 23. Plate '26 with door 30 closesand overlaps opening 8. The door 30 ishinged to plate 26 by hinge 3| and is held inclosed position by latch 32. Door 30 is provided with a glass viewing window 33. Door 31) can be swung openso that access can be had to burner 9 for lighting the s m -v To assemble burner 9 in thecombustion chamr doo i v h t de hou ing 4 is en and plate 26 and door 310 removed. flhe burner 9 and venturi l l are now passed endwisethrough opening 6 in the housing 4 and through opening 8 in the combustion chamber I with the burner nd Ve u swu h u h 9 fr m th .pQ -tie shownin Figs. 1 and 5, dottedline showing Fig; 1, so t tt Ventu i is i r r calnosition... Holding the Venturi in vertical position is, necessary merely because the door opening' B is narrow and not wide enough to permit the Venturi pipe [I to be passed therethrough when the .venturi is. in the horizontal position as shown in Fig. 1. If the door'opening 6 is, made wide enough to accommodate Venturi II when in horizontal position, holding of the Venturi in its vertical position'while assembling the burner in the combustion chamber would not be necessary.

Burner 9 is passed through opening 8 inthe combustion chamber l with'the remote endJHl of 'the bumer foremost and "burner 9 isti-lted at an angle so that the Venturi end is higher than end 40 which passes under bolt 22, Fig. 5. While the burner is moved to the right side of opening 8 and saddle 25, tube 12 is inserted in the end of Venturi tube H as at 13. The burner is then moved to the left into its saddle seats l9 and 25. The burner is now in substantially horizontal position, Fig. 2, so that the burner rests near its center in saddle 19 of bolt support l8 and the end 40 of the burner is beneath bolt 22, Fig. 4. Bolt 22 prevents any substantial upward movement of end 40 of burner 9. At this time the Venturi tube H rests in saddle 25. Plate 26 is now positioned over opening 8 with the semi-circular notch 4| in plate 26 surrounding and contacting Venturi tube H and holding it securely in saddle 25. Plate '26 is secured to the combustion chamber wall 23 by the bolts 21 and the door 30 may now be closed and the heater is ready for operation.

It will be noted that burner 9 is provided with a three point mounting; one point l9 below the approximate mid-section of the burner and the other points 22 and 4H adjacent the ends of the burner so that the burner cannot rock about support l9 as a fulcrum or bodily move substantially in any direction. It will also be noted that when the burner is connected to tube l2 it is also prevented from being rotated axially on its mountmgs.

The disassembling of the burner from the gas heater for servicing can be accomplished very readily by first removing plate 28, disconnecting pipe [2 from the end of the Venturi tube i i, and then raising the Venturi tube end of burner 9 upwardly sufiicient to disengage the Venturi from saddle 25, Fig. 5, whereupon the burner can be withdrawn from the combustion chamber through opening 8 and from the casing 4 through opening 6. It will be noted that no dismantling of the heater is necessary to disassemble the burner therefrom.

Each bolt [8 and 22 are of square section beneath the heads as at 50. This square head portion of each bolt fits into its respective square opening 2! in the side wall l6 and prevents the bolt from turning and thus positively holds saddle [9 in the position shown in Fig. 3. The bolts are fitted with nuts 5|.

The side walls l6 and ll of the combustion chamber are bowed slightly outwardly so that if they warp, the tendency will be for these sides to move outwardly. Hence, with nuts 5| drawn tight when initially installed, the bolts will always stay tight throughout the life of the heater.

It should also be noted that while the burner 9 is held accurately in position, it is not placed under any stress so that the expansion of the burner or heat chamber does not throw any stresses on either the burner or heat chamber. The accurate locating of the burner in the heat chamber is important particularly where the burner is used in conjunction with a pilot burner 52 because it is essential that the burner maintain its location with respect to the pilot burner.

I claim:

1. In a gas heater, a combustion chamber comprising side and end Walls, a gas burner positioned in said combustion chamber, a mounting carried by the side walls of said combustion chamber and positioned under said burner between the ends thereof for supporting the burner in said combustion chamber, one end wall of said combustion chamber having an opening through which the burner projects, said opening being sufficient- 1y large to pass the burner therethrough, a second mounting carried by said combustion chamber and positioned between the first mentioned mounting and the closed end wall of said combustion chamber and contacting the top side of said burner, and a third mounting contacting the top side of said burner adjacent the opening in the end wall of said combustion chamber, said third mounting being positioned to obstruct said opening and being readily removable whereby the burner can be removed from said combustion chamber by moving the same through the said opening in the end wall of the combustion chamher.

2. In a gas heater, a combustion chamber comprising side and end walls, a gas burner positioned in said combustion chamber, a mounting carried by the side walls of said combustion chamber and positioned under said burner between the ends thereof for supporting the burner in said combustion chamber, one end wall of said combustion chamber having an opening through which the burner projects, said burner resting on its lower side upon the lower edge of said opening and closing a portion of said opening, a second mounting carried by said combustion chamber and positioned between the first mentioned mounting and the closed end wall of said combustion chamber and contacting the top side of said burner, and a third mounting contacting the top side of said burner adjacent the opening in the end wall of said combustion chamber, said third mounting being in the form of a closure for another portion of said opening and being readily removable whereby the burner can be removed from said combustion chamber by moving the same through the said opening in the end wall of the combustion chamber.

3. The combination set forth in claim 2 wherein the first and second mountings are in the form of rods each supported at its opposite ends in the side walls of the said combustion chamber, the end of the burner being positioned under one rod and resting upon the upper-side of the other rod.

4. In a gas heater, a combustion chamber comprising end walls and side walls, one of said end walls having an opening therein, a gas burner and Venturi tube assembly mounted with the burner in said combustion chamber and the Venturi tube positioned outside said chamber, said opening being of a size to pass said burner therethrough, a mounting located within said combustion chamber and positioned under said burner between opposite ends thereof for supporting the burner in the combustion chamber, and separate mountings positioned above said burner on opposite sides of the aforesaid mounting and contacting the top side of said burner for holding the burner upon the aforesaid mounting, said mountings interlocking with said burner to prevent said burner from being rotated about the aforesaid mounting on an axis disposed transversely of a line extending between said opposite ends of said burner, said burner having obstruction means thereon engaged by at least one of said mountings to prevent substantial bodily movement of said burner relative to said mountings, one of said upper mountings being removable to permit removal of the burner from said combustion chamber.

5. The combination claimed in claim 4 wherein one of said opposite ends of said burner rests upon the lower edge of said opening in the end wall of said combustion chamber and said last mentioned upper mounting is positioned adjacent said end wall and holds the burner down against the said lower edge of said opening in the end wall of the chamber.

6. In a gas heater, a combustion chamber comprising side walls and end walls, an opening in one of the end walls having its lower edge in the form of a saddle, a gas burner and Venturi assembly mounted with the burner within said combustion chamber and the Venturi tube without said combustion chamber and resting upon the saddle in the end wall of said combustion chamber, a closure for the opening in the end wall of said combustion chamber and contacting the top side of said Venturi tube to secure the same in said saddle, and separate mountings for said burner within the combustion chamber, the said burner resting upon the one mounting between the ends of the burner and the top side of the said burner engaging the underside of the other mounting adjacent the end of the burner remote from said Venturi tube.

7. In a gas heater, a combustion chamber comprising end walls and side walls, one of said end walls having an opening therein, a gas burner and Venturi tube assembly mounted with the burner in said combustion chamber and the Venturi tube positioned outside said chamber, a mounting located within said combustion chamber and positioned under said burner between the ends thereof for supporting the burner in the combustion chamber, and separate mountings positioned above said burner on opposite sides of the aforesaid mounting and contacting the top side of said burner for holding the burner upon the aforesaid mounting, one end of said burner resting upon the lower edge of said opening in the end wall of the combustion chamber, one of said upper mountings being positioned adjacent said end wall and holding the burner down against the lower edge of said opening in the end wall of said chamber, said burner closing a portion of the opening in said end wall and said last mentioned upper mounting being in the form of a closure for the opening in the end wall of said combustion chamber.

DON F. JONES.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,101,721 Van Hoesen June 30, 1914 1,764,719 Gercich June 17, 1930 1,790,739 Antrim Feb. 3, 1931 1,862,182 Fraser June 7, 1932 2,064,714 Antrim Dec. 15, 1936 2,153,915 Dolibois Apr. 11, 1939