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Патент USA US3035643

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May 22, 1962
3,035,633
A. PALKO
OIL BURNER
Filed Sept. 14. 1959
42 54
5a
Fw
25780 Z/
20
BY
United States Patent Ofice
p
3,035,633
Patented May 22, 1962
2
1
OIL BURNER
turnably mounted in a center opening in the top wall so
that the spiral stream of the gas air mixture can be further
Andrew Palko, 14 Sherwood Drive, Nanuet, N_Y.
Filed Sept. 14, 1959, Ser. No. 839,623
20 Claims. (Cl. 158-68)
istie for the invention are set forth in particular in the
3,035,633
The present invention relates to an oil burner, and
more particularly to an oil burner of the pan-type in
which fuel oil is vaporized, mixed with air, and burned.
It is one object of the present invention to provide an
oil burner which efficiently operates, and can be inex
pensively manufactured.
controlled by turning the additional baffle.
The novel features which are considered as character
appended claims. The invention itself, however, both as
to its construction and its method of operation, together
with additional objects and advantages thereof, will be
best understood from the following description of speciñc
embodiments when read in connection with the accom
panying drawings, in which:
FIG. l is a sectional view of an oil burner according
Another object of the present invention is to provide
to one embodiment of the present invention;
an oil burner in which the fuel is reliably gasified and
FIG. 2 is a cross-sectional view taken on line II-II in
thoroughly and uniformly mixed with air to provide a 15 FIG. l; and
blue llame in which the fuel is completely burned with
FIG. 3 is a sectional view taken on line HI-III in
out the development of noxious gases.
Another object of the present invention is to provide
a fuel burner which can be easily adjusted to varying
FIG. 2.
Referring now to the drawings, a fuel inlet pipe 10
is secured to a structure generally indicated by the refer
fuel supply conditions to provide complete combustion 20 ence numeral 20. Structure 20 includes a bottom Wall
of all the vaporized fuel.
21 of circular shape, an outer annular wall 22 projecting
With these objects in view, one embodiment of the
upwardly from bottom wall 21, an intermediate top wall
present invention mainly comprises gasification chamber
23 beyond which an annular portion of Wall 22 projects,
means to which fuel is supplied in liquid form so that
and an inner annular Wall 24 between the top and bottom
it accumulates on the bottom of the chamber means and 25 Walls.
is gasiñed when the chamber means is heated; a distri
bution chamber communicating with a burner block in
which passages are provided; and air inlet tube means
having a perforated portion located in the gasification
An annular chamber 25, and a central chamber 26 is
formed between Walls 21, 22, 23 and 24.
The partitioning walls 27 and 2S having apertures 27a,
28a, are provided in the outer annular chamber 25.
chamber means and opening into the distribution chamber 30 Therefore, liquid fuel supplied through fuel inlet 10 into
whereby gasiñed fuel passes through the perforated por
chamber 25 will accumulate only in the first chamber
portion 251 of chamber 25 if the level of the fuel does
not exceed the height of apertures 27a and 28a. How
is preferably guided therein by spiral-shaped battle means
ever, when fuel in the ñrst chamber portion 251 is gasi
to move in a spiral stream toward the center of the 35 ñed, the gas will pass through walls 27 and 28 and en
distribution chamber from where it passes into a central
ter the second chamber portion 252 under pressure.
passage in the burner block, and then transversely in.
Chamber 251 is at least partly filled with a wire mesh
radial direction through other passages in the burner
253, such as copper wool, serving as a screen.
block. Thebañle means may be turnable to properly
An air inlet tube 30 is provided which is secured to
position it in the third chamber.
40 walls 22 and 24 in a fluid-tight manner, for example,
The initial heating of the fuel in the first chamber
by welding, and opens into the inner chamber 26. 'I‘he
means is produced by known additional heating means,
portion 31 of the air inlet tube 30 passes through the
and when sufficient gas mixture is produced, it is ignited
annular chamber 25, and more particularly through the
at the burner block by known igniting means. During
chamber portion 252. Portion 31 is perforated to form
operation of the oil burner the heat developed by the 45 inner projection or burrs 32a With openings 32. Con
burned gasiiied fuel is suñicient to heat the first chamber
sequently, air passing through inlet tube 30 will mix with
to such extent that all supplied liquid fuel is gasiñed.
gasiñed fuel passing under pressure from vapor cham
The operation is improved in accordance With the present
ber 252 through perforations 32 so that ya fuel air mix
invention by an annular Wall extension of the chamber
ture is formed which enters the inner chamber 26. While
means surrounding a part of the burner block so as to 50 normally no liquid fuel can enter vapor chamber 252,
be heated by the ñame. In this manner, heat is trans
nevertheless an overflow 33 is provided for removal of
ferred to the gasification chamber means to gasify liquid
liquid fuel entering the air inlet tube 30, which may oc
fuel supplied to the same.
cur when fuel is supplied continuously without heating
According to a preferred embodiment of the present
the structure 20 as may occur when a person unfamiliar
invention, the chamber means of the oil burner are pro 55 with this type of burner operates the device.
vided in a structure which includes an inner and an outer
A threaded spindle 40 is secured to the bottom Wall
Wall, and top and bottom walls closing the annular walls
21 and passes through the center of the inner chamber
and defining in the same an inner chamber correspond
26. A burner block 59 is secured to structure 20 by a
ing to the above defined third chamber means, and an
washer 41 and a nut 42 on spindle 40. The burner block
annular chamber which is divided lby a pair of partition 60 is composed of a plurality of superimposed but spaced
ing walls into the above defined first and second chambers.
circular discs 51 which are of gradually decreasing di
When fuel is supplied to one part of the annular chamber
ameter. Threaded bolts 52 pass through suitable open
it accumulates on the bottom Wall to a level not exceed
ings in discs 51, and spacing means, such as radially
tion into the air in the air inlet tube means.
The gas
and air mixture passes into the distribution chamber and
ing the height of openings in the partitioning walls,
extending wires 53, are provided between adjacent discs
whereas gas created by heating the bottom Wall passes 65 so that spaces 56 are formed between the discs 51. In
through the partitioning Walls into the other portion of
this manner, a frusto-conical burner block is formed.
the annular chamber, where a perforated portion of the
Each of the discs 51 has a center opening 54, and the
air inlet tube is located so that the gas enters under
diameters of the preferably circular 'openings 54 are grad
pressure into the air inlet tube which communicates with
ually reduced, so that a tapered center passage 55 is
70 formed in the burner block 50. The center passage 55
the inner chamber within the inner annular Wall.
Preferably, a stationary spiral baille is secured to the
is located directly opposite a center opening 231 in top
inner wall, and another baffle of unsymmetrical shape is
wall 23.
In this manner, a gas-air mixture can pass
3,035,633
3
through opening 231 into the central passage 55 and from
there in radial direction through the annular gaps 56 be
tween adjacent discs 51. The gas mixture can be ig
nited at the outer surface of the frusto-conical burner
block 50.
The upper portion 221 of the outer Vannular wall 22
extends beyond top wall 23 and has openings 222. Since
annular portion 221 surrounds part of the burner block
50, it is heated by the flame and such heat is conveyed
4
According to a further feature of lthe present invention,
an additional fuel tube 80 is provided which ends in an
opening 81 of the inner wall 24 and communicates with
chamber 251. Fuel tube 80 passes through an opening 82
in bañie 60, and has an end portion 83 projecting into the
air inlet tube 30. A small amount of fuel enters fuel tube
Sil, is gasified when bottom wall 21 is heated, and the gas
passes through end portion 83 directly into the air inlet
tube 30 where it is taken along by the stream of air to
to the bottom wall 21 so that fuel supplied through fuel 10 enter the inner chamber 26.
inlet 10 is properly gasiñed during the operation of the
burner.
In accordance with the present invention, baille means
are provided in the inlet chamber 26 for guiding the gas
In this manner, a small
amount `of gasiíied fuel is immediately available to form a
gas-air mixture at the beginning of the operation.
It will be understood that each of the elements de
scribed above, or two or more together, may also ñnd a
air mixture toward the central passage 55 of the burn 15 useful application in other types of oil burners differing
from the types described above.
er block 50. A fixed spiral baille 60 is secured to the in
While the invention has been illustrated and described
ner annular wall 24 by its end portion 61, and has an
as embodied in an oil burner provided with an annular
other end portion 62 which is spaced from the inner wall
gasification chamber surrounding an inner chamberV to
24 so that a spiral passage is formed in the inlet cham
ber 26. The stream of the gas-air mixture will pass along 20 which a gas»air mixture is supplied, it is not intended to
the inner wall 24, and will be weakest in the region 261
be limited to the details shown, since various modifica
tions and structural changes may be made without depart
of inner chamber 26. End portion 61 of baffle 6i) is
ing in any way from the spirit of the present invention.
provided with perforations 63 located opposite a small
Without further analysis, the foregoing will so fully
baille member 64 which is provided directly yadjacent the
opening of the air inlet tube 30. Therefore, the air will 25 reveal the gist of the present invention that others can
not pass into the corner between baffle end portion 61
by applying current knowledge readily adapt it for various
applications without omitting features that, from the
and inner wall 24, but will be deflected to pass in clock
standpoint of prior art, fairly constitutes essential charac
wise direction in the spiral passage between wall 24 and
teristics of the generic of specific aspects of this invention
spiral baffle 69. A certain suction will be exerted in the
space defined by walls 61, 24 and baille 64, so that an 30 and, therefore, such adaptations should and are intended
amount of gas-air mixture is drawn through openings 63
to be comprehended within the meaning and range of
equivalence of the following claims.
and the circulation in the area 261` of chamber 26 is
improved.
What is claimed as new and desired to be'secured by
An additional bafñe member 70 is mounted in the cen
Letters Patent is:
ter opening 231 of top wall 23 and is held there by a flange 35
l. A burner comprising, in combination, heat-convey
7l.- Balile member 70 is of spiral shape, but of grad
ing wall means deiining a closed annular outer chamber,
ually decreasing axial length, as can be best seen in
and an inner chamber surrounded by said outer chamber
and having an >opening on top, said wall means including
FIG. l. Consequently, when bafñe member 70 is turned
in opening 231 by a manual operation, the position of the
an outer annular wall surrounding said opening; fuel inlet
Ylongest part of the spiral shaped baffle member can be 40 means for supplying a fuel to said outer chamber; air inlet
means opening into said inner chamber and having a per
determined and Vit has been found that the best results are
obtained when the longest portion of battle member 7i) is
forated portion located in said outer chamber so that fuel
vapor developing in said outer chamber is drawn into said
located in the area 261. The best position of the turn
able baflle member 70 is found by trying out the po
perforated portion and passes with air into said inner
sition in which the llame of the burner is blue all around 45 chamber and from there through said opening; and a
frusto-conical burner block supported on said wall means
as desired for complete combustion. It will be under
and being at least partly surrounded by said annular wall,
stood that also the openings 63, and the baflle 64 are di
mensioned to obtain the best possible combustion.
said frusto-conical burner block having a top face, a bot
The bafñe member 7i) will further guide the stream
tom face, and an annular lateral Vouter surface, said burner
of the gas-air mixture toward the center of the inner 50 block being formed with a central recess extending from
said bottom face into the same, and formed with a plural
chamber 26, so that the gas-air mixture will pass through
ity of superimposed tiers of sets of radial passages extend
baille member 70 into the central passage 55 of the burn
ling from said center recess to said annular outer surface,
er block 50.
.
The device is operated as follows:
said recess being located above said opening so that the
The structure Ztl, and particularly bottom wall 21 is
vapor-air mixture passes into said recess and through said
heated in the manner described, for example, in my U.S.
passages to said annular outer surface to be burned there
Patent 2,458,630. Liquid fuel is supplied through fuel
on whereby said annular wall is heated and conveys heat
to said outer chamber for gasifying liquid fuel therein.
inlet pipe 10 and accumulates on the bottom of the ñrst
2. A burner as set forth in claim 1 wherein said annu-i
chamber means 251 where it is gasified, so that gas passes
through partitioning Walls 27 and 28 into the second 60 lar outer surface of said burner block is frusto-conical and
chamber means 252 from where it enters through open
wider in the region of said bottom face.
ings 32 into the air stream passing through air inlet tube
3. An oil burner comprising in combination, heatable
30 into the inner distribution chamber 26. The stream of
wall means defining an open inner chamber anda closed
outer chamber, said wall means including an annular wall;
the gas-air mixture is guided first by baille 60 and then by
baffle 7i) toward the center of the inner chamber 26 from 65 fuel inlet means opening into said outer chamber; tubular
air inlet means opening into said inner chamber and hav
where it passes into the central passage 55 of burner block
ing a perforated portion located in said outer chamber so
50, and from there through the annular gaps 56 between
that fuel vapor passes from said outer chamber into said
the discs 51 to be ignited by suitable known igniting means
air inlet means and from there into said inner chamber;
at the frusto-conical surface of the burner block 50. If
and a burner block supported on said wall means in the
the flame is not blue all around, the position of the baffle
region of said inner chamber closing the same, said burner
member 70 may be adjusted. When suñicient heat is
block having an annular outer surface at least partly sur
developed by the llame on burner block 50, annular wall
rounded by said annular wall, said burner block `being
extension 221 will be heated so that the bottom wall 21
formed with passages communicating with said inner
will become suñiciently hot to Continuously gasify fuel
75 chamber and opening on ksaid annular outer surface so
supplied through inlet 10.
3,035,633
6
5
that burning gas between said burner block and said an
nular Wall heats the latter whereby said outer chamber is
heated and fuel therein is gasiñed.
,
4. An oil burner comprising in combination, heatable
wall means including a bottom wall, an outer annular
Wall and an inner annular wall, and deñning an open
inner chamber within said inner Wall and an outer closed
chamber between said inner and outer walls; fuel inlet
means opening into said outer chamber; tubular air inlet
means passing through said inner and outer walls opening
into said inner chamber and having a perforated portion
chamber portion so that fuel vapor passes from said
outer chamber into said air inlet means and from there
into said inner chamber; and a burner block supported
on said wall means in the region of said inner chamber
closing the same, said burner block having an annular
outer surface at least partly surrounded by said outer
annular wall, said burner block being formed with pas
sages communicating with said inner chamber and open
ing on said annular outer surface so that burning gas
10 between said burner block and said outer annular wall
located in said outer chamber so that fuel vapor passes
from said outer chamber into said air inlet means and
from there into said inner chamber; and a burner block
supported on said wall means in the region of said inner
chamber closing the same, said burner block having an
annular outer surface at least partly surrounded by said
outer annular wall, said burner block being formed with
passages communicating with said inner chamber and
heats the latter whereby said outer chamber is heated
and fuel therein is gasiiied.
8. An oil burner comprising in combination, heatable
wall means including a bottom wall, an outer annular
wall and `an inner annular wall, and defining an inner
chamber within said inner wall and a closed outer cham
ber between said inner and outer Walls; partitioning Walls
in said outer chamber having apertures spaced from said
bottom wall and defining in said outer chamber a fuel
opening on said annular outer surface so that burning gas 20 chamber portion and a vapor chamber portion communi
cating with said fuel chamber portion; fuel inlet means
between said burner block and said outer annular wall
heats the latter whereby said outer chamber is heated
and fuel therein is gasiñed.
5. An oil burner comprising in combination, heatable
wall means including a top wall having a center opening, 25
-a bottom wall, an outer wall and an inner annular wall,
opening into said fuel chamber portion of said outer
chamber; tubular air inlet means passing through said
inner and outer Walls, opening into said inner chamber
and having a perforated portion located in said vapor
chamber portion; a spiral bañle in said inner chamber
having one end portion secured to the inner surface of
and deñning an inner chamber within said inner wall and
said inner wall on one side of said air inlet means and
an outer chamber between said inner and outer walls;
having the other end portion thereof located on the other
fuel inlet means opening into said outer chamber; tubular
air inlet means passing through said inner and outer walls, 30 side of said air inlet means spaced from said inner wall
so that fuel vapor passes from said outer chamber into
opening into said inner chamber and having a perforated
said air inlet means and from there into said inner cham
portion located in said outer chamber so that fuel vapor
ber to be guided by said spiral bame in a spiral stream;
passes from said air inlet means and from there into said
and a burner block supported on said wall means in the
inner chamber; and spiral-shaped baille means in said
region of said inner chamber and formed with passages
inner chamber deñning in the same a spiral-shaped duct
communicating with said inner chamber.
for guiding fuel vapor toward the center of said inner
9. An oil burner comprising in combination, heatable
chamber and to said center opening.
Wall means including a bottom wall, an outer annular
6. An oil burner comprising in combination, heatable
wall and Áan inner annular wall, and defining an inner
wall means including a bottom wall, an outer annular
wall and an inner annular wall, 'and defining an open 40 chamber within said inner wall and a closed outer cham
ber between said inner and outer walls; fuel inlet means
inner chamber within said inner wall and an outer closed
chamber between said inner and outer walls; fuel inlet
opening into said outer chamber; tubular air inlet means
opening into said outer chamber; tubular air inlet means
passing through said inner and outer walls opening into
passing through said inner and outer walls, opening into
said inner chamber and having a perforated portion lo
said inner chamber and having a portion located in said
outer chamber above said bottom wall and having in
cated in said outer chamber; -a spiral baffle in said inner
chamber having one end portion secured to the inner
surface of said inner wall on one side of said air inlet
wardly projecting nozzle-like projections formed with
means and having the other end portion thereof located
perforations so that gasiiied fuel under pressure passes
on the other side of said air inlet means spaced from said
from said outer chamber through said perforations into
said air inlet means and from there into said inner cham 50 inner wall; a small baille projecting lfrom said inner wall
into said inner chamber `and being located on said one
ber to form a fuel-air mixture; spiral-shaped bañie means
side of said air inlet means between the same »and said
turnably mounted in said inner chamber defining in the
secured end portion of said spiral bathe, said secured end
same a spiral-shaped duct for guiding fuel vapor toward
portion being formed with `apertures opposite said small
the center of said inner chamber; and a burner block
supported on said wall means in the region of said inner 55 bafñe so that fuel vapor passes from said outer chamber
into said tair inlet means and from there into said inner
chamber closing the same, said burner block having
chamber to be guided by said spiral bañle in a spiral
an annular outer surface at least partly surrounded by
stream, and a burner block supported on said wall means
said outer Lannular wall, said burner block being formed
in the region of said inner chamber and formed with
with passages communicating with the center of said inner
chamber and opening on said annular outer surface so 60 passages communicating with said inner chamber.
l0. An oil burner comprising in combination, heatable
that burning gas between said burner block and said
wall means including a top wall having a center opening,
outer annular wall heats the latter whereby said outer
a bottom wall, »an outer annular wall yand lanvinner an
chamber is heated and fuel therein is gasifìed.
7. An oil burner comprising in combination, heatable
ular Wall, and deñning an inner chamber within said
wall means including a bottom wall, an outer annular
wall and Van inner annular wall, and defining an inner
chamber within said inner wall and a closed outer cham
inner wall and an outer vchamber between said inner and
outer walls; a deilector member located in said center
ber between said inner and outer walls; partitioning walls
opening of said «top wall and having a bañie portion
projecting into said inner chamber, said bafñe portion
being curved and being obliquely cut olf to be longer on
in said outer chamber defining in said outer chamber a
fuel chamber por/tion and «a vapor chamber portion com 70 one side than on the other side, said deflector member
being turnable in said center opening for manual adjust
municating with said fuel chamber portion; fuel inlet
Vment; fuel inlet means opening into said outer chamber;
means opening into said fuel chamber portion of said
tubular -air inlet means passing through said inner and
outer chamber; tubular air inlet means passing through
outer walls opening into said inner chamber and having
said inner and outer walls opening into said inner cham
ber and having a perforated portion located in said vapor 75 a perforated portion located in said outer chamber so
3,035,633
7
ë
that fuel vapor passes from said air inlet means and from
there into said inner chamber; and a burner block sup
ported on said wall means in the region of said inner
chamber and formed with a central passage communi
with the outer surface of said burner block so that said
upper annular wall portion and said outer chamber are
heated to gasify fuel.
14. An oil burner comprising in combination, heatable
cating through said center opening in said top wall with
wall means including a bottom wall, an outer annular
said inner chamber, and having transverse passages com
wall projecting from said bottom Wall, an inner annular
wall projecting from said bottom wall, a top wall extend
ing from the inner surface of said outer wall and deñning
municating with said center passage.
11. An oil burner comprising, in combination, heatable
wall means including a bottom wall, an outer annular Wall
and an inner annular wall, ‘and defining an open inner
with said inner and outer walls an annular outer chamber
chamber within said inner wall »and an outer closed cham
ber between said inner and outer walls; fuel inlet means
said outer wall having an upper portion projecting beyond
and above said top Wall and being formed with openings;
a pair of radial partitioning walls located in said outer
chamber between said outer and inner walls and on said
opening into said outer chamber; tubular air inlet means
passing through said inner and outer walls, opening into
said inner chamber, and having -a perforated portion lo
cated in said outer chamber so that fuel vapor passes from
said outer chamber into said 'air inlet means and from
and an inner chamber, said top wall being perforated,
bottom wall and having aperatures spaced from said bot
tom wail; a fuel inlet pipe opening into `said outer cham
ber between one pair of sides of said partitioning walls
so that fuel supplied through said inlet pipe accumulates
there into said inner chamber; ‘and «a burner block sup
on said bottom wall between said sides of said partition
ported on said wall means in the region of said inner
chamber, said burner block including a plurality of spaced 20 ing wails while vapor passes through said apertures in said
partitioning walls; an air inlet tube means having a por
circular discs of gradually decreasing `diameter so as to
tion formed with a plurality of perforations and located
have a truste-conical outer surface, said discs having cen
tral openings of gradually decreasing diameter forming
between said outer and inner walls in said outer chamber
between the other sides of said partitioning walls, said
a central upwardly tapering passage in said burner block
communicating with said inner chamber and with the 25 air inlet tube means opening into said inner chamber so
that fuel vapor passing through said apertures in said
spaces between said discs, said burner block including
partitioning walls passes from said outer chamber into
means for closing the upper end of said passage, the outer
said air inlet tube means and from there into said inner
truste-conical surface of said burner block being partly
chamber; a spiral bañle located in said inner chamber
surrounded by said outer annular wall so that the same
is heated and heats said outer chamber to gasify the fuel 30 and extending from said inner wall past said air inlet
therein.
`
12. An oil burner comprising in combination, heatable
tube means to guide an air vapor mixture in a spiral
stream in said inner chamber, said spiral baffle abutting
said top and bottom walls; and a burner block supported
on said wall means and being located within said upper
35 portion of said outer wall, said burner block having pas
sages communicating with said inner chamber through
ber and having a portion located outside of said wall
said perforated top wall and connecting said inner` cham
means 'and a perforated portion located in said outer
ber with the outer surface of said burner block.
chamber so that fuel vapor passes from said outer cham
l5. An oil burner comprising in combination, hea-table
@ber into said air inlet means and from there into said inner
wall
means including a bottom wall, an outer annular
chamber; spiral-shaped vbaiìie means in said inner cham
wall projecting from said bottom wall, an inner annular
her forming a spiral-shaped Iduct therein leading from said
wall projecting from said bottom wall, 4a top wall extend
air inlet means to the center of said inner chamber; and
ing from the inner surface of said outer -Wall and defining
a »burner block supported on said -wall means in the
with said inner and outer walls an annular outer chamber
region of sm'd inner chamber and formed with passages
kcommunicating with the 'center of said inner chamber. 45 and an inner chamber, said top wall having a central
opening, said outer wall having an upper portion project
13. An oil burner comprising in combination, heatable
wall means defining an inner chamber »and a closed outer
chamber; fuel inlet means opening into said outer cham
ber; tubular air inlet means opening into said inner cham
wall'means including a bottom wall, an outer annular
wall projecting from said bottom wall, an inner annular
wall projecting from said bottom wall, a top Wall extend
ing from the inner surface of said outer Wall and defining 50
with said inner and outer walls »an »annular outer cham
ing beyond and above said top wall and `being formed
with openings; a pair of radial partitioning walls located
in said outer chamber between said outer and inner
walls and on said bottom wall and having apertures spaced
from said bottom wall; a fuel inlet pipe opening into said
outer charnber between one pair of sides of said partition
ing Walls so that fuel supplied through said inlet pipe
‘ber »and an inner chamber, said top wall being perforated,
said outer Wall having an upper annular portion project
accumulates on said bottom wall between said sides of
ing beyond and `above said top wall land being formed with
openings; .-a pair of radial partitioning walls located in 55 said partitioning Walls while vapor passes through said
apertures in said partitioning Walls; an air inlet tube
said outer chamber between said outer and inner walls
means having a portion formed with a plurality of perfo
»and on said bottom wall .and having apertures spaced from
rations and located between said outer and inner walls
said bottom wall; a fuel inlet pipe opening into said outer
in said outer chamber between the other sides of said
chamber `between Vone pair of sides of Said'partitioning
walls so that fuel supplied through said inlet pipe ac 60 partitioning walls, said air inlet means opening into said
inner chamber so that fuel vapor passing through said
cumulates on said ‘bottom wall between said‘sides of said
apertures in said partitioning walls passes from said outer
partitioning walls while vapor passes through said aper
tures in said partitioning walls; an air-inlet tube means
chamber into said air inlet tube means and from there
into said inner chamber; a burner block supported on said
having a portion formed with a plurality of perforations
and located between said outer and inner walls in said 65 wall means and being located within said upper portion
of said outer wall, said burner block having passages
outer chamber between the other sides of said partitioning
communicating with said inner chamber through said cen
walls, said air inlet tube means opening into saidV inner
tral `opening in said top wall and connecting said inner
chamber so that fuel vapor passing through said apertures
chamber with the outer surface of said burner block;
in said partitioning walls passes -from said outer chamber
into said air inlet tube means and from there into said 70 and a spiral-shaped baiiie member turnably mounted in
said central opening of said top wall so as to form in said
inner chamber; anda burner block supported on said wall
inner chamber a spiral-shaped passage for guiding the
Ymeans ‘and being located within said upper ‘annular por
air vapor mixture to the center of said inner chamber.
tion of said outer wall, said burner block having passages
16. An oil burner comprising in combination, heatable
communicating with said inner chamber through said
perforated top wall audconnecting said inner chamber 75 wall means including a bottom wall, an outer annular
3,035,633
10
Wall projecting from said bottom wall, an inner annular
wall projecting from said bottom wall, a top wall extend
ing from the inner surface of said outer Wall and defining
with said inner and outer wmls an annular outer chamber
and an inner chamber, said -top wall having a central
opening, said outer wall having an upper portion project
ing beyond and above said top wall and being formed
with openings; a pair of radial partitioning Walls located
with air introduced through said air inlet tube means;
and a burner block located within said wall means and
closing said outlet, said burner block having passages
communicating with said outlet of said third chamber
means to receive a fuel-air mixture, and opening with
in and opposite said wall means so that the same is heated
and heats said first chamber means.
19. ln an oil burner, in combination, a plurality of
walls forming adjacent first, second and third chamber
and contacting said bottom wall and defining apertures 10 means, said second chamber means communicating with
spaced from said bottom wall; a fuel inlet pipe opening
the upper portion of said first chamber means, said
ñrst and second communicating chamber means being
into said outer chamber between one pair of sides of
said partitioning walls so that fuel supplied through said
closed to the outside, said third chamber means having
in said outer chamber between said outer and inner walls
inlet pipe accumulates on said bottom wall between said
sides of said partitioning walls while vapor passes through
said apertures in said partitioning walls; an air inlet tube
means having a portion formed with a plurality of perfo
an outlet at the center thereof; a fuel inlet pipe opening
into said ñrst chamber means so that fuel accumulates
in the lower portion of said íirst chamber means, rises
to the upper portion of the same, when gasified, and passes
rations and located between said outer and inner Walls
into said second chamber means; air inlet tube means hav
in said outer chamber between the other sides of said
ing a perforated portion located in said second chamber
partitioning walls, said air inlet tube means opening into 20 means and opening into said third chamber means whereby
said inner chamber so that fuel vapor passing through
gasiiied fuel passes through said perforated portion into
said perforations in said air inlet tube means passes from
said third chamber means with air introduced through
said outer chamber into said air inlet tube means and
said air inlet tube means; spiral-shaped bañle means in
from there into said inner chamber; a spiral baîiie located
said third chamber for guiding the fuel-air mixture t0
in said inner chamber and extending from said inner wall 25 wards the center of said third chamber; and a burner
past said air inlet tube means to guide an `air vapor mix
block closing said outlet of said second chamber means
ture in a spiral stream in said inner chamber, said spiral
and having passages communicating with the center
baffle abutting said top and bottom walls; a burner block
of said third chamber means to receive a fuel-air mix
supported on said wall means and being located within
ture.
said upper portion of said outer wall, said burner block 30
20. In an oil burner, in combination, a plurality of
having passages communicating with said inner chamber
walls forming adjacent first, second and third chamber
through said central opening in said top wall and con
means and including an upwardly projecting annular
necting said inner chamber with the outer surface ofsaid
perforated Wall means, said second chamber means com
burner block; and a spiral-shaped baffle member turnably
municating with the upper portion of said first chamber
mounted in said central opening of said top wall so as to 35 means, said ñrst and second communicating chamber
form in said inner chamber and with said spiral bañle a
means being closed to the outside, said third chamber
spiral-shaped passage for guiding the air vapor mixture
means having an outlet located within said >upwardly pro
to the center of said inner chamber.
jecting annular perforated wall means; a fuel -inlet pipe
17. An oil burner comprising in combination, heat
opening into said iirst chamber means so that fuel ac
able wall means including a bottom wall, an outer an 40 cumulates in the lower portion of said first chamber
nular wall and an inner annular wall, and defining an
means, rises to the upper portion of the same, When `gasi
inner chamber within said inner wall and a closed outer
iied, and passes into said second chamber means; air inlet
chamber between said inner and outer walls; fuel inlet
tube means having a perforated portion located in said
means opening into said outer chamber; tubular air in
second chamber means and opening into said third cham
let means passing through said inner and outer walls 45 A'ber means whereby gasiiied fuel passes through said per
opening into said inner chamber and having a per
forated portion into said third chamber means with air
forated portion located in said outer chamber; a fuel
introduced through said air inlet tube means; a burner
pipe partly located in sm'd inner chamber and having
block located within said annular wall means and clos
one end opening into said outer chamber in the region
ring said outlet, said burner block ‘having passages com
of said fuel inlet means and having another end por 50 municating with said outlet of said third chamber means
tion passing through said outer chamber, said other end
to receive a fuel-air mixture and opening within and 0p
portion of said fuel pipe extending into said air inlet
posite said annular wall means so that the same is heated
means and opening into the same so that fuel vapor
and heats said first chamber means, said annular per
passes from said outer chamber into said air inlet means
forated wall means surrounding at least a portion of said
and from there into said inner chamber; and a burner 55 burner block.
block supported on said wall means in the region of
said inner chamber and formed with passages com
References Cited in the ñle of this patent
municating'with said inner chamber.
UNITED STATES PATENTS
18. In an oil burner, in combination, a plurality of
walls forming adjacent first, second and third chamber 60
means and including an upwardly projecting wall means
extending along an annular line, said second chamber
means communicating with the upper portion of said
first chamber means, said ñrst and second communica
ting chamber means being closed to the outside, said 65
third chamber means having an outlet located within
said upwardly projecting -wall means; a fuel inlet pipe
opening -into said first 'chamber means so that fuel ac
cumulates in the lower portion of `said ñrst chamber
means, rises to the upper portion of the same, when 70
gasiiied, and passes into said second chamber means;
air inlet tube means having a perforated portion located
in said second chamber means and opening into said
third chamber means whereby gasiñed fuel passes through
said perforated portion into said third chamber means 75
366,704
997,278
1,036,037
1,592,120
1,775,866
2,023,624
2,222,854
2,458,630
2,560,984
2,561,264
2,658,568
2,707,989
Van Wie _________ ______ July 19, 1887
Donnelly ____________ __ July 11, 1911
Vondracek et al ________ __ Aug. 20, 1912
Meier ______________ __ July
Salz ________________ __ Sept.
Tullis ______________ __ Dec.
Reynolds _____________ __ Nov.
Palko _______________ __ Jan.
Port et al _____________ __ July
13,
16,
l0,
26,
11,
17,
Burgess _______________ __ July 17,
Broady ______________ __ Nov. 10,
Schori _______________ __ May 10,
1926
1930
1935
1940
1949
1951
1851
1953
1955
FOREIGN PATENTS
451,452
Great Britain _________ __ Aug. 6, 1936
284,930
Switzerland __________ __ Dec. l, 1952
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