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Патент USA US2134972

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Nov. 1, 1938.
Filed Oct. 23, 1934
Patented Nov. 1, 1938
' vRoy L. ‘HaneyK’San Francisco, Calif.
Application October 23, 1934, Serial No. 749,546
4 ‘Claims. (01. 158—106)
_ This invention relates to gas burners and has
Ill’ ‘as by pipe sleeves or collars II which are
for its object an improved heating burner espe
cially adapted for industrial‘ use in heating burners
and other apparatus, and‘ which will give high
threaded right and left at opposite ends l2 so
5’ ef?ciency, operate under a great range of gas
pressures without danger of back?re, which will
be substantially silent in starting as well ‘as dur
ing combustion, and in extinguishment. Other
advantages are simplicity and low cost of con
10 struction, and freedom fro-m upkeep expense.
In the drawing accompanying this speci?ca
tion Fig. 1 is a plan view of a group or battery of
my improved burners.
Fig. 2 is an elevation of Fig. 1 shown partly in
15 section and showing the action of the gases.
Fig. 3 is a cross section of a portion of Fig. 1
as taken along the line 3—3.
The drawing is about half size of a commercial
burner, consuming 60 cubic feet of gas per hour
20 at a pressure of 31/2 inches of water.
Brie?y described, my improved gas burner com
prises a gaseous fuel supply or burner pipe I with
spaced gas outlet nozzles 2, and arranged over
and above which outlets are deep refractory
25 blocks 3 provided with Venturi-shaped passage
ways & centered respectively over the gas open
ings. The blocks or Venturi tubes of heavy re
fractory burnt clay or the like are elevated above
the outlet nozzles and the latter are of a size,
30 determined by the gas pressure provided, so that
a large amount of primary air is drawn into the
Venturi tube in a manner to maintain the lower
end of the combustion just above the throat of the
Venturi tube as at 5, though the upper part may
35 project considerably above the refractory blocks.
The spread of the gas 6 issuing from the nozzles
2 is shown in Fig. 2 and wherein the small arrows
indicate the inward and upward rush of primary
The refractory blocks are preferably formed
in units of four or more Venturi openings in a
row, and of heavy walls so as to build up and hold
an intense heat during the operation of the burn
ers as I have found this to add greatly to perfect
45 combustion of the gases within. The unit blocks
are rectangular with vertical grooves or channels
1 formed along their sides, preferably at points
that any of them may easily be removed; Also,
the blocks of each run are slightly spaced as 13
so as to provide additional space besides that
afforded by the confronting channels ‘I for sec
ondary air which thus ascends upward around
all sides of the highly heated refractory blocks
to enter the ?ame just above them.
The Venturi passages are relatively short below 10
the throat or point of constriction and several
times this distance to the top of the block as this
form has been found to induce the largest amount .
of primary air and most thorough mixing and
preheating before the point of actual combustion 15
5, though of course the latter will rise and fall
with variations in gas pressure.
Since the upper
portions of the refractory clay blocks are main
tained from a dull red to a red heat commencing
about half way up the burner, the radiant heat 20
emitted is greately increased.
With burners constructed as above, there is no
possibility of back?re or “popping”, even if the
pressure be repeatedly reduced to drop the ?ames
to very small size in contact with the nozzles and 25
then be instantly raised to full pressure, for upon
establishing full pressure for which the particu
lar burner is adapted, the ?ame will quietly rise
and enlarge to full volume. In fact a gas pressure
just above a half inch of water will maintain the 30
?ame well up above the throat of the Venturi
To adapt the burners for various pressures and
qualities of gas it is merely necessary to use suit
able size nozzles 2 which may be easily screwed 35
in the threaded openings along the burner pipes.
Having thus described my improved gas burner
and its advantages, it will be evident that varia
tions may be made within the spirit of the inven
tion and scope of the appended claims.
1. In a gas burner having a row of spaced gas
outlet openings, a single, horizontally elongated
generally rectangular block of refractory material
formed. with a row of vertical through passage
ways spaced to match said gas outlet openings,
and means supporting said block over said gas
midway between the gas nozzles, and at the ends
outlet openings with its passageways respectively
also by removal of the corners as at l’, and each
50 unit is supported above the burner pipe I by ?at
metal U-shaped brackets 8 preferably welded to
the pipe as at 9.
In arranging the units for a large heating area,
aligned thereover and with the block spaced out
wardly from and above said openings, said pas
sageways through the block being of Venturi tube
form with the throat portion spaced further from
the outer side of said block than from the side
toward the openings whereby the portion of the
block between adjacent passageways will form
- any number of the burner pipes are connected
55 to side branches Ill of a gas supply header pipe
partition walls therebetween tapering from ap
preciable thickness at the level of the throat to
appreciably reduced thickness at the upper ends
of the passageways.
2. In a gas burner, a gas supply pipe with a
gas outlet opening, a refractory block having
exposed outer sides and formed with a Venturi
passageway aligned with said gas outlet opening,
forming a combustion chamber and ?ame dis
charge nozzle, the throat of the Venturi passage
way being adjacent the lower end of said block
and several times as far from the upper end as
from said lower end, means supporting said block
above said outlet with the lower open end of the
15 Venturi passageway spaced a substantial distance
supporting one of the blocks over each pipe with
the passageways aligned over the outlet openings,
said passageways in the blocks being of Venturi
tube form with the throat portion spaced ap
preciably further from the upper side of the block 5
than from the side toward the outlet openings,
and the outer adjacent side of each block being
formed with vertical grooves on the side adjacent
the other block to coact with the adjacent side of
the other block for providing vertical air passage 10
ways between the blocks.
4. In a gas burner having a row of substantially
uniformly spaced gas outlet openings, an elon
gated block of refractory material formed with a
row of parallel, elongated, through passageways 15
of generally Venturi-shape in contour in direction
above said outlet opening for providing a space
between the outlet and lower open end of the longitudinally of the passageways, means sup
Venturi passageway for free access of air directly’ , porting said block in a position with said passage
to the outlet opening at a point outside of said ways, respectively, disposed lengthwise in axial
passageway thereto.
3. A gas burner ‘comprising a pair of parallel
horizontal pipes each provided with a longitudi
nally extending row of spaced gas outlet openings
in the upper side thereof, a ,pair of horizontally
25 elongated refractoryblocks each being formed
with a row of vertically extending passageways
therethrough spaced, horizontally for vertical;
alignment over the outlet openings of the pipes
respectively, means on each pipe independently
alignment with the gas outlet openings, the 20
throats of the respective Venturi-shaped passage
ways being disposed at the ends thereof adjacent
said openings whereby the portions of the block
disposed between adjacent passageways form par
tition walls therebetween tapering from appreci 25
able thickness at the throats to appreciably lesser
thickness at the ends of the passageways remote
from said throats.
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