close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2409131

код для вставки
o@ s, 1946. l
H.LANGE
. 2,409,129
GAS BURNER
Filed Sept. 16, 1943
@yf
2 Sheets-Sheet l
0cm s, 1946.
2,409,129
H. LANGE
GAS BURNER
Filed Sept. 16, 1943
2 Sheets-Sheet 2
27
Patented Oct. 8, 1946
2,409,129
UNITED STATES PATENT OFFICE
2,409,129
GAS BURNER
Henry Lange, Quincy, Ill., assignor to The Quincy
Stove Manufacturing Company, Quincy, Ill., a
corporation of Illinois
Application September 16, 1943, Serial No. 502,583
7 Claims.
(Cl. 126-36)
2
1
This invention relates to improvements in gas
burners.
In domestic cooking ranges of the combination
type, such as are designed for burning coal or
wood as well as gas, it has been common practice
bination range generally, the particular details
of which are not pertinent to the present improve
ments. The oven is shown as being provided with
a conventional ñrebox Il for receiving solid fuel,
' the hot combustion gases from which are caused
to circulate about the exterior of the oven for
heating the same. For example, a top flue I2
is shown which communicates with the ñrebox
the ñrebox, receives hot combustion products
and through which combustion gases flow into
from the i'lrebox for applying heat to the bottoms
of the ovens. Such gas burners have produced 10 a vertical iiue I3 which communicates with a bot
tom flue I4 deiined by the bottom I5 of the oven
cool spots of substantial areas on the oven bot
and the bottom wall I6 of the range. The hot
toms, and notwithstanding the use of heat con
combustion gases flowing into and through the
ducting closure plates or lids in the openings
bottom iiue Hi supply heat to the bottom of the
above the gas burners, they have impaired the
uniformity of the bottom heat supplied by the 15 oven and may ñow thence to a back flue (not
to locate the gas burners within the bottom flues
of the ovens, which, during use of a solid fuel in
bottom flues when the ovens were heated from
the ñre box.
One object of the present invention is to pro
vide a novel gas burner for the oven of a com
bination range which occupies less area in the
oven bottom than the prior types of burners of
equal heating capacity, and thereby .permits a
better distribution of bottom ilue heat whenever
the oven is heated by a solid fuel.
_
Another object of the invention is to provide
an improved gas burner having a novel arrange
ment of gas ports which insure that each flame
will receive an adequate supply of secondary air
and thereby prevent floating flames and incom
plete combustion of the gas.
An additional object of the invention is to pro
vide a gas burner generally of tubular form hav
ing a tubular combustion chamber within which
the flames are conñned and supplied with sec
ondary air for eñicient combustion.
Another object of the invention is to provide a
gas burner having an internal combustion cham
ber forming member which can be removed
readily from the burner structure for facilitating
cleaning thereof.
Other objects of the invention will be apparent
from a consideration of the following speciñca
tion and accompanying drawings wherein
shown) whence they exhaust through an exhaust
i'iue il'.
For the lpurpose of heating the oven with gas
when it is not desirable to utilize a solid fuel in
the ñrebox II, a gas burner is positioned in the
bottom flue I4 preferably centrally of the oven
bottom. The gas burner is indicated generally
by the numeral I8, and, as shown more in detail
in Figs. 2 to 5 inclusive, it comprises an outer
tubular shell i9, which may be of cast iron, for
example, which is supported on the range bottom
IS and extends upwardly into contact with the
oven bottom I5. The shell I9 is shown provided
with a stepped or flanged bottom portion provid
ing annular flanges 20 and 2| through the former
of which, as shown in Fig. 4, bolts 22 may be
passed for securing the shell I9 in firm Contact
with the range bottom I6. The range bottom is
shown provided with an annular rib 23, which
contacts the lower portion of the shell to assist
in affording a gas-tight connection. The bottom
surface of the flange 2| is also shown contacting
the bottom I6 with intermediate sealing or gasket
forming material 24 therebetween.
The construction described provides adequate
contact between the lower end of the shell I9 and
the bottom I6 to provide a gas-tight connection
therebetween, whereby combustion gases flowing
within the ñue cannot pass beneath the lower
Figure 1 is a broken front elevation of a com
bination range disclosing an improved gas burner 45 end of the shell. The upper end of the shell I9
of a construction which is illustrative of the pres
ent improvements;
is also provided with horizontal steps or flanges 25
and 26, the former of which terminates in an
upwardly directed rib 21 which contacts the lower
surface of the oven bottom I5, while the flange
Fig. 2 is a broken enlarged sectional elevation
taken on line 2--2 of Fig, 1;
Fig. 3 is a top plan view of the improved burner; 50 26 provides a seat for an inner tubular burner
member hereinafter described.
Fig. 4 is a sectional view taken on line 4-4 of
The bottom wall I6 is provided with an open
rig. s;
ing 28 concentric with the burner, and the oven
Fig. 5 is a sectional view taken on line 5-5 of
bottom I5 is likewise provided with an opening
Fig. 3.
'
29 concentric with the burner whereby secondary
In Fig. 1 of the drawings, I0 indicates a com
2,409,129
3
4
not extend upwardly into the oven, the baille
air from beneath the range can ilow upwardly
40 may be placed at a lower elevation within the
through the central combustion chamber of the
oven than where a conventional burner is em
burner structure as mentioned hereinafter. The
ployed. Lowering the level of the baille increases
marginal portion of the oven bottom I5 adjacent
the effective pan-holding capacity of the oven.
the opening 29 is shown with a depending flange
The baille 4i) is shown supported at its side edges
30 which seats upon the flange 25 for the purpose
by lugs 4I.
of affording a tight seal between the bottom I5
-When it becomes desirable to clean the burner,
and the upper end of the member I9 to prevent
the latches 32 may be swung to non-latching posi
escape of combustion gases from the flue I4.
The ilange 25 is shown enlarged at opposite por 10 tion with reference to the inner shell 33 and the
latter lifted out, and cleaned readily and replaced
tions to form ears 3l for accommodating latches
without difllculty.
32 which may be moved to inoperative position
The improved burner not only can be cleaned
as described hereinafter whenever it is desired
readily by removal of the inner tubular member
to clean the burner. The depending flange 35.1
is shown cut away adjacent the ears 3I to accom 15 or sleeve 33‘, but improved combustion of the gas is
effected by the unobstructed flow of secondary air
modate swinging movement of the latches 32
to all sides of the individual port flames which is
as shown in Fig. 4. The inner tubular member
facilitated by the flaring shape of the inner tubu
previously referred to is indicated by the numeral
lar member 33 and by the circumferential and
33 and is adapted to seat at its lower end upon
the flange 2| while its upper end is provided with 20 vertical staggering of each gas port with respect
to adjacent ports.
an outwardly directed flange 34 which is adapted
While I have shown and described in detail the
to rest upon the flange 2S and to make gas-«tight
present preferred construction of the burner in
Contact with the flanges 2l and 23.
adapting the same for use in a domestic range,
The inner tubular member 33 is of less diameter
than member I9 and said members cooperate to 25 it will be apparent that various changes in de
scribed details may be made within the spirit of
form therebetween an annular gas distributing
the invention.
passage‘35. Gas is supplied to the burner through
I claim:
a duct 36 which, at its outer end, is provided with
1. In combination with spaced horizontal walls
a conventional mixing valve 31 as shown in Fig. 2.
Primary air and gas flow through the duct 35 into 30 of an oven gas flue provided with vertically
aligned openings therein a gas burner positioned
the distributing passage 35 and thence through
between said horizontal Walls, said burner com
a plurality of gas ports 33 provided in the inner
prising an outer tubular member extending be
shell or tubular member 33. The ports 38 are
tween said walls and provided with means at the
shown arranged in inclined rows to- provide a
staggered arrangement of the individual ports 35 upper and lower ends thereof providing gas-tight
seals with said walls at the margins of said open
to insure to each jet of gas a supply of secondary
ings, an inner tubular member positioned within
air flowing upwardly through the opening 23.
said outer member, said inner member defining
As illustrated in the drawings, the tubular
therein a central combustion chamber substan
members I9 and 33 flare outwardly slightly in an
upward direction and such shape of the inner 40 tially equal in length to the distance between
said walls and being open at the upper and lower
member 33 reduces the likelihood of the individual
ends for permitting flow of air upwardly through
flames contacting the inner surface of the mem
the chamber, said tubular members having upper
ber 33 and being cooled and causing a deposit of
and lower contacting portions providing gas seals
carbon on the wall. The jets of gas issuing
therebetween and being spaced apart intermedi
through the ports 38 are, by the construction dis
ate said contacting portions to provide an annular
closed, supplied with adequate quantities of
gas distributing passage therebetween, and a plu
secondary air whereby the flames are stable and
rality of gas ports in said inner member for jet
floating llames resulting from incomplete com
ting gas from said passage into the stream of air
bustion of the gas are avoided. The unimpeded
in said chamber for combustion therein.
flow of secondary air into the combustion cham
2. In combination with spaced horizontal walls
ber afforded by the described construction of the
of an oven gas flue provided with vertically
burner provides an adequate supply of air to the
aligned openings therein, of a gas burner posi
individual flames, and hence a relatively large
tioned between said horizontal walls, said burner
number of gas ports 38 may be provided so that
comprising an outer tubular member extending
the improved burner obstructs a smaller portion '
between said walls and provided with means at the
of the oven bottom I5 than a conventional burner
upper and lower ends thereof providing gas-tight
of equal heating capacity. When the oven is
seals with said walls at the margins of said open
being heated by hot combustion gases within the
ings, an inner tubular member positioned within
flue I4, the improved gas burner interferes less
with the uniform heating of the oven bottom by 60 said outer member, said inner member defining
therein a central combustion chamber substan
the combustion gases than does a conventional
tially equal in length to the distance between said
burner of equal heating capacity.
walls and being open at the upper and lower ends
It will be seen that when the oven is being
for permitting flow of air upwardly through the
heated by combustion gases flowing within the flue
chamber, said tubular members having upper and
Iii, the gases can circulate freely about the gas
lower contacting portions providing gas seals
burner, and by providing a closely fitting lid 39
therebetween and being spaced apart intermedi
within the opening 29 substantial heat conduc
ate said contacting portions to provide an an
tion by the lid materially reduces the cooling
nular gas distributing passage therebetween and
effect produced by the gas burner.
a plurality of gas ports in said inner member for
When the gas burner is in use, a baille plate 1343
jetting gas from said passage into the stream of
which is positioned in the lower part of the oven
serves to distribute the heat from the burner so
air in said chamber for combustion therein, said
that the oven temperature is uniform. Since
gas ports being arranged in inclined rows spaced
the flames at each of the ports 33 are conñned
circumferentially of said inner member distances
within the combustion chamber and generally do 75 greater than the distance between adjacent ports
2,409,129
5
6
within a row whereby each port of any row is
municating with said tubular member, an inner
tubular member -deñning an inner combustion
chamber and coaXially positioned Within said iirst
tubular member and coacting therewith to pro
spaced from any directly subjacent port in an
adjacent row a distance greater than the distance
between the respective rows.
3. ln combination, a pair of vertically spaced
oven walls defining therebetween a circulation
line for het gases, said walls having a pair of
aligned openings therein, a tubular member posi
tioned in said openings and sealed to the flue
walls at the margins of the openings to prevent =
escape of íiue gases through said openings, an
inner tubular member positioned in said first
mentioned tubular member and annularly spaced
therefrom to provide an intermediate gas dis
tributing passage, means at the upper and lower
ends of said members for sealing the respective
ends of said passage, means for conveying gas
vide an annular gas distributing passage there
between closed at the upper and lower ends of
said inner tubular member, and a plurality of
gas ports in said inner tubular member arranged
in circumferentially off-set oblique rows in com
munication with said gas distributing passage for
jetting gas into said combustion chamber for
combustion therein.
6. A gas burner comprising an outer tu
bular member, an inner tubular member inter
mediately spaced apart and providing seals ad
jacent the upper and lower ends to form an an
nular gas distributing passage therebetween,
to said passage, and a plurality of gas ports in
means for conducting gas to said passage, and a
said inner tubular member distributed over the
plurality of burner ports in said inner tubular
portion intermediate the ends thereof for direct 20 member communicating with said passage and
ing gas from said passage into the interior of
arranged in circumferentially off-set inclined
said inner tubular member for combustion there
rows for jetting gas into the interior of said inner
m.
tubular member for combustion therein and
4. A gas burner adapted to be positioned in a
whereby secondary air passing upwardly through
pair of vertically aligned openings in the horizon
said inner tubular member can flow to each jet
tal walls of an oven heating flue comprising a
Without'obstruction by a subjacent jet.
pair of coaXially arranged separable tubular
7. A gas burner comprising an outer tubular
members having upper and lower contacting por
shell open at the ends, an inner tubular member
tions providing gas seals therebetween and defin
Within said shell open at the ends to enable the
ing an intermediate annular gas distributing pas- 2
free flow of secondary air axially through the
sage between said members, releasable vmeans for
saine, means sealing the ends of said inner tu
latching said tubular members in gas sealing rela
tion, means for supplying gas to said passage, and
a plurality of cireumferentially spaced oblique
rows of gas ports in the inner of said members for
¿letting gas from said passage into the interior of
said inner member for combustion within the
bular member to said shell and spacing the same
apart annularly intermediate said sealing means
to provide therebetween an annular gas passage,
means for conducting gas into said passage, and
a plurality of oblique rows of gas ports in said
tubular member through which gas is jetted into
latter. the interior of said tubular member for combus
5. In combination, an oven provided with
tion within the secondary air stream flowing
spaced bottom walls deñning therebetween a bot 40 through said member, said rows of openings being
tom heating iiue and having registering open
spaced apart circumferentially distances greater
ings therein, a tubular member spanning said
than the spaces between ports within a row to
ñue in alignment with said openings and united
insure access of the flame at said ports to fresh
to said walls at the margins of said openings to
secondary air flowing through said tubular mem
prevent leakage of gases from said flue around
ber.
~
said tubular member, a gas supply duct com
HENRY LANGE.
Документ
Категория
Без категории
Просмотров
0
Размер файла
540 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа