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Oct. l5, 1946.
.
J. l. anais;
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BURNER ANUPUBL FLO” CONTROL “BARS
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2,409,470
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vmhd .my 1s. 1944
39
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36737
_Zìwèzzz‘ar
-ßmës _Ä .Breese
@PQ/„AM um,
«75k/'frega
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Patented Oct. 15, 1946
42,409,470
UNITED ' STATES i PATENT OFFICE
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A2,409,470
BURNER AND FUEL FLOW CONTROL MEANS
James L. Breese, Santa Fe, N. Mex., assignor to
(lil Devices, Santa Fe, N. Mex., a limited part
nership of Illinois
Application July 13, 1944, Serial No. 544.736
9 Claims. ( ci. 15s-42.3)
l
2
may otherwise be supported or positioned within
My invention relates to an improvement in hy
drocarbon burners and has for one purpose the
provision of a burner for burning liquid hydro
carbon fuels which shall be simple, economical
and eil‘icient in operation.
Another purpose is the provision of improved
the wall I defining the mixing and combustion
chamber. 32 is a float of any suitable material
adapted to resist or be undamaged by the tem
peratures to which it is subjected. It maybe of
stainless steel or some ceramic material and is
suiiiciently buoyant to ñoat on the fuel 33.> Il is
any suitable operating rod `upon the free end of
means for supplying a burner through a single
passage or inlet member with all of the air neces
sary to support the primary combustion of the
fuel.
' -which the iioat 32 is secured. It controls any
suitable worm or screw 33 through any suitable
`
- Another purpose> is. the provision of-improved
means for preventing an excess supply of fuel and
for cutting off the fuel supply when an excess sup
ply hasybeen delivered.
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Another purpose is the provision of improved
means for supplying primary and secondary air
for the combustion of liquid fuel hydrocarbons
along a single inlet member.
Another` purpose is to provide improved means
nut 36 to control a valve element 31 opposed to a
seating 38 in the liquid fuel inlet duct 39. It will
be understood that when the level of the fuel 33
drops in> response to vaporization of the fuel in
the vaporizing cup 3|)v the constant rotation of
the arm 34 moves valve 31 away from the valve
seat 33 and permits an inflow of liquid fuel. Also
when sufficient fuel has .been supplied, the rise ,
vof the float 32 moves the valve 31 toward closing
for vaporizíng liquid fuel in a zone of combustion "~ zo position. ' The duct 1 may be employed to supply
in the presence and for mixture with air adequate
all the air necessary for combustion; or addition- . _
to support partial and eventually final fuel com-v."
al air may be admitted through other inlets. I
may provide for example the access opening I0
controlled by a. movable door 4I which may have
bustion.
»
,
Another purpose is to provide» an improved
means for „ controlling the level-` of ‘liquid fuel
damper apertures I2.
subjected to vaporization within a mixing and
It will be realized that, whereas I have de
scribed and illustrated a practical and operative
device, nevertheless many changes may be made
combustion chamber.
`
Other; purposes will appear from time to time in
the course of the speciñcation,
`
_,
in the size, shape, number and disposition o!
I illustrate my invention more or less diagram
30 parts without departingfrom the spirit of my in- '
matically in the accompanying drawing wherein:
vention. ‘ =I§therefore wish myy description and
Fig. 1 is a vertical section through’ an embodie
ment of my device; and
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Fig. 2 is a section on the line 2-'--'2 of Fig. 1.
Like parts are indicated ~ by like symbols
throughout the specification and drawing._
drawing to be'takenas in a broad sense illustra
tive or diagrammatic, rather than as limiting me
to my precise showing.
‘
' >For examplepthe shape and proportion of the '
primary and secondary air passages may be
widely varied, fand- a simple aperture or plurality
Referring to the drawing, Iillustrate a combus
of >apertures may vbe employed', or a variety of
tion chamber I, herein shown 'as in the form of
a drum, having a bottom or base portion 2 and.
diifere’nt shapes of head. It will be understood,
if desired, abottom body 3 of any suitable mate 40 also, Vthat-,11.* 'I .1wish, I may provide some addition
al airv supplmtc ’the Vcombustion chamber I, but
rialI such asfire'brick." It will be understood that
the burner may be applied to a wide variety of
heaters, furnacesuand the like, but I illustrate'it
in connection with a water heater 5 having a cem
tral nue passage 3;* Ijemploy--a single- air‘and
fuel Vinlet member having an outer passage ‘.l,
herein shown as vertieähand with an open top' 8,
under‘rnar'u'tv circumstances it is preferable to
deliverall of the air supply through the passage l.
Thegul‘eïandï operation of my invention are v
45 asîfollowsz"
fr
I provi
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¿heating device »in which a liquid »
fuel.l such.
dhydrocarbon, may be burned.
. I have iv
¿my device in connection with
It has a horizontal portion 3,“which- extends in? '
fr
‘ih willbe,'uriv rstöod that `I mayapply it to'space
elbow I0, which may'be'aidally‘. aligned with- thef
iiue passage 6. I'provide aufixedïvaporivzing
'y Basically, I employ an inlet passage of substan
or` any other suitableme'ans for admitting air.`
, u
,
ble for, a hotwater heater, but
50;
wardly through the _wall oi’j the jmember I, l
heaters, furnaces. or the like, or any other heat
herein showni as 'terminating' ‘with -a' ï'd wnward ï
fngnnieans."
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30 of metal or any other _suitable‘materialtwhich I
tially greater capacity than is necessaryfor the
may be mounted on any suitable supports 3i 'or \
mere> supply of ¿a liquidfuel to be burned. In
2,409,470
3
drawing I illustrate an air passage oi' sub
"
ntial cross sectional area, which receives air
...ie open top 8 and delivers the air inwardly
¿t
for, having air inlet means, means for delivering a
liquid fuel to the interior of said chamber ele
aiong the passage 9. The liquid fuel is admitted
ment, a liquid fuel receiving cup, located in said
interior of said chamber element and in the line
along the passage 39, past the valve members
3&3, and ñows inwardly along the passage S.
of delivery of liquid fuel to the interior of said
chamber element, and means for varying the flow
.as a substantial length of the, passage 9 is` sub
.iected to the heat of combustion within the mem
ber i, the tube through which the mixture of
, of liquid _fuel to the interior of said chamber ele
ment in response to changes in the volume of the
liquid fuel in said cup.
primary air and the liquid fuel flows is highly 10
2. In combination, in a liquid fuel burner, a
heated. Enough air is admitted to constitute
mixing and combustion chamber element there
the entire primary supply of air, and the liquid
for, having air inlet means, means for delivering
hydrocarbon, in the presence of this primary air,
a liquid fuel to the interior of said chamber ele
. is vapor-ized' and forms, with the primary air, a
ment, a liquid fuel receiving cup, located in said
hydroxylated mixture.
15 interior of said chamber element and in the line
The mixture is supplied at a speed exceeding
of delivery of liquid fuel to the interior of said
that of flame propagation, so that the mixture
chamber element, and means for varying the flow
cannot burn back into the passage 9, with a con
of liquid fuel to the interior of said chamber ele
sequent deposit of carbon. It will be understood
ment in response to changes in the level of the
that I may employ any means for maintaining 20 liquid fuel in said cup.
this relatively high flow of mixture. If in any
3. In combination, in a liquid fuel burner, a
particular situation natural draft is not suñlcient,
mixing and combustion chamber element there
may employ a motor driven fan, or other suit
for, having air inlet means, means for delivering
able means not herein shown.
a liquid fuel to the interior of said chamber ele
Fuel is supplied in suiiicient volume to maln 25 ment. a liquid fuel receiving cup, located in said
taln a ñre which will subject the member 9 to
interior of said chamber element and in the line
temperatures suflicient t0 vaporlze the liquid fuel
of delivery of liquid fuel to the interior of said
and to superheat the final mixture. When the
chamber element, and means for varying the flow
mixture escapes from the downturned end lill of
of liquid fuel to the interior of said chamber
the member 9, it receives sufficient secondary air 80 element in response to changes in the level of the
in the space defined by the drum I to produce a
liquid fuel in said cup, said cup being normally
unal mixture which is burned in the combustion
fixed within and in relation to said mixing and
chamber.
combustion chamber.
l may employ any suitable inlet means for sup
4. In combination, in a liquid fuel burner, a
plying this secondary air. It is advantageous to 35 mixing and combustion chamber element there
deliver the secondary air so as to maintain a zone
for having air inlet means, means for delivering
of combustion directly adjacent the passage l0
a liquid fuel to the interior of said chamber ele
so that 'the liquid fuel is properly vaporized and
ment, means in said chamber element for receiv
the primary mixture superheated.
ing said liquid fuel and for maintaining it in-po
li und it advantageous to provide means for 40 sition for vaporization by the heat of combustion
cutting ofî the fuel supply in the event that an
taking place within or adjacent said chamber ele»
excess supply of fuel, more than can be vapor
ment, and means for varying the rate of flow
ized, is delivered from the outlet I0.
of liquid fuel to the interior of said chamber
@il flows from the inlet 39 through the valve
element in response to variations in the volume
orlñce into the tube 9, and flows out along the 45 of unvaporized liquid fuel present in said cham~
tube, which is pitched somewhat downwardly
toward the mouth I0. The oil starts in as a liquid
after passing the valve seat 3B, and flows down
`the lower surface of the tube d. Before it reaches
the orifice til it is vaporized by the heat of com
bastion.
‘The air passing through the tube 9 is suñlcient
to completely hydroxylate the mixture. and a
dry combustible gas flows downwardly through
the orifice ill at a velocity greater than that of
darne propagation. 'I'his velocity is sumclent to
prevent iiame from burning back into the tube.
any suitable secondary air supply means may
employed for supplying secondary air to the
space within the drum or housing i. It will be
understood that in any event secondary air is
admitted to the space within the drum I and
that thlssecondary air is sufficient and effec
tive to maintain final complete combustion of
the mixture which iìows from the oriñoe i d.
‘With reference to the drawing I provide means
for controlling the liquid fuel valve in response
to variations in the amount of liquid fuel present
in the mixing chamber or Zone and in the van
porlzíng member. Variations in the amount or
Revel of the fuel subjected to vaporization are
employed to control the liquid fuel inlet valve 3l.
I claim:
i. 'in combination, in a liquid fuel lburner, a
mixing and combustion chamber element there
ber.
,.
5. In combination, in a liquid fuel burner, a
mixing and combustion chamber element there
for, having air inlet means, means for delivering50 a liquid fuel to the interior of said chamber ele~
ment, a liquid fuel receiving cup, located in said
ínterlor'of said chamber element and in the line
of delivery of liquid fuel to the interior of said
chamber element and means for varying the flow
55 of liquid fuel to the interior of said chamber ele
ment, in response to changes in the volume of liq
uid fuel ln said cup including a float member re
sponsive to the level of liquid fuel in said cup.
6. In combination, in a liquid fuel burner, a
60 mixing and combustion chamber element there
for, having air inlet means, means for delivering a
liquid fuel to the interior of said chamber ele~
ment, a liquid fuel receiving cup, located in said
interior of said chamber element and in the line
35 of delivery of liquid fuel to the interior of said
chamber element, and means for varying the flow
of liquid fuel to the interior of said chamber element in response to increases in the volume of the
liquid fuel in said cup.
70 7. In combination, in a liquid fuel burner, a
mixing and combustion chamber element there
for, having air inlet means, means for delivering
a liquid ‘fuel to the interior of said chamber ele
ment, a liquid fuel receiving cup, located in said
75 interior of said chamber element, and in Ithe line
2,409,470
o! delivery of liquid fuel to the interior of said
chamber elements,` and means for varying the i'iow
of liquid fuel to the interior of said chamber ele
ment in response to increases in the level of the
liquid fuel in said cup.
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8. In' combination, in a liquid fuel burner, a
mixing and combustion chamber element Íthere»
for, having air inlet means. means for delivering
ñxed within and in relation to said mixing and
combustion chamber.
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9. In combination, in a liquidfuel burner, a
mixing and combustion chamber element therefor
having air inlet means, means for delivering a
liquid fuel to the interior of said chamber ele
ment, means in said chamber element for receiv
ing said liquid fuel and for maintaining itin posi
a liquid fuel to the interior of said chamber ele
tion for vapo'x‘ization by the heat of combustion
' ment, a liquid fuel receiving cup, located in said 10 taking place within or adjacent ‘said chamber ele~
interior of said chamber element and in the line
ment, and means for varying the rate of flow of
of delivery of liquid fuel tothe interior of said
liquid fuel to the interior of said lchamber ele
chamber element, and means fox-'varying the flow
ment in response to increases in- the volume oi'`
of liquid fuel to the interior of said chamber ele
unvaporized liquid iuel present in said chamber.
ment in response to increases in the level of the 15
liquid fuel in said cup, said cup being normally
<
JAMES n nREE'sE. ,
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