US2531261A

US2531261A - Furnace burner mount

Info

Publication number: US2531261A
Application number: US723163A
Authority: US
Inventors: Edward R Downe
Original assignee: CA Olsen Manufacturing Co
Current assignee: CA Olsen Manufacturing Co
Priority date: 1947-01-20
Filing date: 1947-01-20
Publication date: 1950-11-21
Anticipated expiration: 1967-11-21

Description

Patented Nov. 21, 1950 FURNACE BURNER MOUNT Edward R. Downe, Elyria, Ohio, assignor to The C. A. Olsen Manufacturing Company, Elyria, Ohio, a corporation of Ohio Application January 20, 1947, Serial No. 723,163

2' Claims. 1.

This invention relates to gas furnaces and the like, and more particularly in means for mounting the burner means thereof.

Objects of the invention are to provide: im-

proved burner mounting means outside the furnace combustion chamber, permitting easy insertion of the burner into the combustion chamber, positive positioning thereof when mounted, and. easy removal as for inspection or cleaning; all by simple and inexpensive means, incapable of receiving the burner'positioned otherwise than properly.

Another object of the invention is to provide that the burner mounting means be itself readily removable to provide access to the combustion chamber, with the advantages just described in connection with the burner.

Still another object is to provide that the mounting means position the pilot for serving the burner; so that the combustion chamber, burner. means, burner support means, and pilot have positive interrelation for proper cooperation in; service, and easy access to be serviced.

The invention is particularly applicable, as will appear, to furnaces employing multiple burners such as a pair of semicircular ones in an. annular combustion chamber, remote parts of which are invisible from the: usual pouch inlet thereto.

Further objects and advantages will be apparent from the following description taken in connection with the accompanying drawings wherein Fig. 1- is aview of pertinent furnace, burner, and burner mounting parts as in horizontal section through the furnace parts and plan of the burner and mounting parts.

Fig. 2 is a section looking sideways as in the plane of line 22, Fig. 1, and indicating in broken lines adjacent parts of the furnace.

Fig. 3 is a front vertical section as in the planes of lines 33, Fig. 1.

With reference now to the drawings, A is the combustion chamber of the furnace, of annular form bounded by an inner wall I and concentric outer wall 2; and B is a pouch inlet leading from the front wall 3 of the furnace to the combustion chamber A between side inlet walls 4.

The illustrated construction is of sheet metal and will be recognized by one familiar with the art as not new therein, and being in fact parts of a gas-fired furnace designed for heating air and providing for its circulation by gravity.

The combustion chamber is served by a pair of burners having complementary semicircular 'heads 5 Within the combustion chamber A, and eachhaving a Venturi mixing tube portion 6 disposed in the pouch inlet B and terminating in an enlarged primary air inlet 1 adapted to receive a gas spud as is usual in the art.

Mounting means are provided, to be positioned generally within the pouch inlet B and engageable with the burners, outside the combustion chamber A- As here shown, such mounting means is a single piece of sheet metal generally of arched form as indicated, having side supporting walls H3 fitting between the side. walls 4 of the pouch inlet, and supporting a top wall or panel H: extending therebetween. across the pouch-inlet intermediate its top andbottom. At its inner end, adjacent the combustion chamber, the mounting means ineludes. an upturned flange l-2 having notch recesses [3 to receive and locate the burner mixing tubes-6, and at its outer end, adjacent the front furnace wall 3, the top panel ll of the mounting means is cut away as at [4 to clear and position the enlarged portions 1 of the tubes.

Themounting means also includes flanges 15. laterally extending from the forward extremities of its side members in to overlie the front wall 3 of the furnace and thus prevent insertion of the mounting means into the pouch beyond the position indicated in- Figs. 1 and 2.

To secure the burners against tilting about their mixing. tube axes, each is provided with a pair of laterally extending arms I6; downwardly recessed to receive the upper extremity of the flange l-Z of. the mounting means.

For gas supply to the burners, a manifold 29 is provided, having a spud 2| for each burner, seating in a central hole in the mixing tube end, as is generally usual in the art.

For support of the manifold 20 and hence of its spuds 2|, a pair of brackets 22 are provided, rigidly associated with the manifold as by welding at 23, and each having a flange 24 to bear against the corresponding flange l5 of the burner mounting means, adjacent the front wall 3 of the furnace.

More particularly, a frame 25 of angle section as indicated in Fig. 1 may preferably be provided about the outer extremity of the inlet pouch, so that the flanges I5 of the mounting means and the flanges 24 of the brackets 22 actually bear against the frame 25 instead of the front wall 3 itself. However, in any event, the brackets 22 are effectively mounted on the front wall as by suitable bolts 26, which may pass through the forward flanges of the frame 25, the

front wall panel 3 itself, and matching flanges on the side walls 4 of the pouch inlet as is well understood in the art.

Also, the flanges l5 of the mounting means are notched adjacent their upper extremities as at 21, and the bracket flanges 24 are turned inwardly at their extremities as indicated in Fig. 1, to overlie and engage these flanges l5 adjacent their notches 21 and thereby secure the forward end of the mounting means against upward displacement in the pouch inlet as well as against removal toward the front of the furnace.

It will be apparent that by the assembly illustrated and described, the burners are positively positioned against displacement in any direction. Adjacent its head each burner is secured against lateral, fore and aft, and lateral tilting motion by interengagement between its arms l6 and the mounting flange l2 at its air inlet extremity; and each burner is secured against up and down and lateral displacement by its spud 2|, and additionally against lateral motion by its clearance notch I4 in the mounting means.

It is also to be noted that each burner head extends from the mounting means and into the combustion chamber with cantilever effect and without necessity for any support within the combustion chamber.

In making the assembly, first the mounting means is inserted into the pouch inlet within which it fits, to the extent permitted by the flanges l 5; next the burners are put in and positioned to bear on the flange I2, thereafter the manifold assembly is added, inserting the spuds into the burner mixing tubes, and mounted by the bolts 26. Thus the bolts 26 maintain the entire assembly against relative motion of any part thereof; yet obviously, upon removal, permit withdrawal of all the parts in the reverse order from the described assembling order.

It is to be observed also that in the assembly the arch form of the mounting means provides ample path for secondary air to the burner heads, between the side walls I0 and beneath the top panel ll.

Preferably also, a pilot, conventionally indicated at 30 Fig. 1, is mounted on the top panel H to serve the burner means, the pilot thus being positively related to the burner means which it serves yet being withdrawable with the mounting means for inspection and servicing.

What I claim is:

1. Apparatus of the class described including furnace means having a combustion chamber with a pouch inlet thereto, burner means having a mixing tube with an enlarged inlet end, a burner head, and downwardly recessed arms laterally extending from said tube adjacent said head, and mounting means for said burner means and including a support of arch form with side members fitting between the sides of said pouch inlet and a transverse member interconnecting said side members, the inner end of said transverse member having upstanding members receiv ing said mixing tube and received by said arms thereof, and the outer end of said transverse member having an opening to receive and posi tion the inlet end of said tube.

2. Apparatus of the class described including furnace means having a combustion chamber with a pouch inlet thereto, burner means having a mixing tube with a spud-receiving inlet, a burner head, and downwardly recessed arms laterally extending from said tube adjacent said head, and mounting means for said burner means and including a support of arch form in transverse section, fitting between the sides of said pouch inlet, having at its inner end upstanding member receiving said mixing tube and received by said arms thereof, and having at its outer end lateral flanges engaging the face of said pouch inlet at the sides thereof, bracket means mounted to clamp said flanges against said face, and spud means supported by said bracket means cooperative with said tube inlet.

EDWARD R. DOWNE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 783,181 De Freitas Feb. 21, 1905 955,308 Bean Apr. 19, 1910 983,423 Holtman Oct. 26, 19 1 1,405,386 Baluss Feb. 7, 1922 1,855,778 Stark Apr. 26, 1932 1,927,019 Branche Sept. 19, 1933 1,964,872 Dodge July 3, 1934 1,997,036 Atwater Apr. 9, 1935 2,140,841 Leonard et al. Dec. 20, 1938 2,183,836 Gordon Dec. 19, 1939 2,215,983 Smith Sept. 24, 1940 2,251,710 Livar Aug. 5, 1941 2,295,784 Handley Sept. 15, 1942 2,297,856 Ames Oct. 6, 1942 2,369,235 Jaros Feb. 13, 1945 2,383,641 Focke et al Aug. 28, 1945