close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2109251

код для вставки
Feb. 22, 1938.
2,109,251
w. .1. JAcoBssoN'
FLUID MIXER
. Filed Aug. 8, 1934
.NAM
omÑ
ff
i5,.
wm
INVENTOR
BY
ATTORNEY
>Patented Feb. 22, 193s .
'
"
2,109,251
UNITED 'STATE-s ,PATENT l OFFICE _
Carbon Corporation, a corporation of New
York
`
Appucßuun Annet c, 193.4., sensi No. 'zas-,924.
` 12 claims.
(ci. 15a-27.4)
'This invention relates to a iiuid mixer and
internal shoulder 29 on the coupling 26.
The
more particularly to an improved gas mixer for unitary mixer or mixing nozzle 2i! comprises e.
blowpipes. The invention relates especially` to l nozzle body having an axial bore 30 therethrough
a unitary mixer for blowpipes which first mixes with on enlarged cavity il at the rear» end oi’
o oir with either iuebgos or‘oxygen and thereafter the bore. An injector t2 is ñtted inthe cavity 5
mixes the oxygen or fuel-gas with the ñrst mix- « 3l and has its forward partspaced from the wall
ture.
A
` e
in welding and high temperature heating oper-
3o to. provide a chamber 33 communicating with
' ations it is frequently desirable to reduce the " the bore 3d.
liii volume of' gas consumed, 'and accordingly au'
may be mixed with the combustible gas mixture
before it reaches the flame. Furthermore, in
did‘ereht classes ci service different ratios of cornToustion ges, combustionnsupnorting ‘gas and an'
i5 are required to .give the greatest efficiency in
~
oi’ 'the cavity and from the‘rear end of the bore
‘The injector t2 has an axial bote .
to through it which extends, when the mixer is lo
in position, from 4the chamber it in the handle.
end il to the chamber it in the mixer, being
disposed in a position to project iiuid passing
through it into the axial here Jill ci the mixer.
ein air port ttl extends through the nozzle body 15
operation and gas economy. Une object of this „ to the cavity il therein tesminating in the chum
invention is to provide a gas mixer in unitary ber iii Thus, a fluid under ni‘essure passing
portions
iorm which
ci combustion
will properly
gas,mix
combustionwsupport»
the desired pro2@ ing gas and air for a given type oi” service. iinother object is the provision oi’ such a mixer in
a form which will permit it to be readily removed
from the blowpipe as a unit. A further object
is the provision o1” a set oi" unitary mixers hav25> ing different dimensions in order that any mixer
the
through
ali* port
theinto
injector
the chamber
will aspirato
tti andaii‘
thence into
the axial bore tu ci’ the mixing nozzle. Air m
passages it in the coupling it give access to
y l may be quickly replaced by another mixer of the
the stem so as to form a chamber it about this
set to meet a change in service requirements
atmospheric air into a space ti between the
coupling llt and the mixing nozzle it.
The forward end ci the mixing nozzle has a
reduced section and clears the inner walls of 25
forward end.
An annular groove tu in the rear y
oi the hlo‘wni‘pe. Other. objects will become an, _ parent upon considei‘ation ci the present special-L`
end of the mixing nozzle registers with the annu
lar groove it in the forward end il ci the handle
3o cation. '
iti to form an annular chamber at the rear end 30
t
’
The> invention is shown by way oi villustration of the mixing nozzle. One or more longitudinal
in the accompanying drawing which represents i passagestt, substantially parallel to the bore fili,
‘ a broken longitudinal mid-section through a connect the annuler chamber termed by the
blcwnipe constructed in accordance Witlfi- the
35 invention.
`
.
l
grooves 39 and 2t ‘with the chamber ttin'the
forward part oi’ the miidng notizie.
35
in the embodiment oi the invention illustrated
From the foregoing the opei'atiori ci the anna
ln the drawing there is shown a blowpipe handle ratus will be clear. Oxygen coming to the blows
it having a forward end ll in which are soldered nine through the oxygen conduit i‘ì posses
or otherwise attached the end-,ef an oxygen con» through the duct it to the oxygen regulating
40 duit it and the end oí a fuel-gas conduit it.. A valve i5.’ When the'valve it is onen the oxygen M
duct it formed in the forward end lll oi the posses throughlthe ducts it and i'i. into the
handle‘connects the oxygen conduit it with an chamber it whence it passes through the axial
oxygen regulating valve it from which ducts iti bore 34 in the injector diend through the cham
and il, in series, lead to a chamber id at the bei' t3, aspiratlng air and mixing ‘with it in nass
45 hase oí a conca-ve conical opening it in the ior~
ward- end ci the handle. A duct it connects theV
fuel-gas conduit it with a fuel~gas control valve
50
ing through the axial bore tu of the mixer. Pro- 4&5
jected through the end oi the bore it and the
chamber - tt the oxygen-‘oir mixture aspirates
t l, whence a duct 2i leads to an> annular -groove
fuel-gas from the chamber t8 into the stem where
it inthe concave conical opening it.
the oxygen, fuel-gas and air are thoroughly '
l
A unitary mixing nozzle 2t is secured in operative position between the handle lll and a stem
iii by means of a lcoupling 26, which may be
screwed upon| external threads il on the fors
o ward end of the handle i l, engaging an annular
55 projection 28 on the stem 25 by means of an
mixed before being-projected thi’ough the usual 5g
tip at the end of the stem.
Y
'
At the saine time fuel-gas, as acetylene, reach'
‘ing the blowpipe through the fuel-gas conduit
i3, passes through the duct 2li to the fuel-gas
regulating valve El. When' this valve is open 53
2,109,251
‘ the fuel-gas passes through -the duct 22 into
the chamber formed between the annular groove
23 and the annular groove 39. Thence the 'fuel
gas passes through the longitudinal passage 40
to the chamber 38, and from there is aspirated
into the stem as already described. Obviously
the oxygen and fuel-gas may be transposed, the
fuel-gas passing through the injector 32 and
thereby aspirating and mixing with air before
it in turn aspirates the oxygen from the cham
ber I8.
»
For different types of service different propor
tions of the gases will be required. In order to
meet this situation a set of unitary mixers hav
16 ing different dimensions may be provided, the
' injector and mixer ends being larger or smaller
to decrease or increase the size of the chamber
33 or the chamber 38, and the diameters of the
bores and passages being increased or decreased
as desired. The dimensions of the mixer where
it contacts with the handle or the stem will, of
course, be equal in all cases, in order that one
mixer may be substituted for another.
It will be appreciated, of course, that the ex
ample here given and illustrated in the drawing
is presented to indicate how the invention may be
applied and is not to be taken as limiting its
scope.
'
I claim:
30
1. A unitary mixing nozzle comprising a nozzle
body having an axial bore therethrough with an
enlarged cavity at the rear end of the bore, and
an injector nozzle fitted in the cavity in said
nozzle body, said injector nozzle having a part
thereof spaced from the wall of the cavity and
. from the rear end of the bore to provide a cham
ber communicating with the` bore, said mixing
nozzle having therein a port communicating with
the chamber, the axial bore through said mixÚ
40 ing nozzle and the passage through said injector
nozzle providing means for passage of a gas
through said mixing nozzle- and the passage
through said injector nozzle providing means for
passage' of a gas through said mixing nozzle,
said nozzle body having therein an annular re- '
cess adjacent its rear end and connecting with
the annular recess a longitudinal passage sub
stantially parallel to the bore, said nozzle bodyalso having'therein a port extending from its
surface in the rear thereof to the chamber
formed in the cavity, the longitudinal passage in 10
said nozzle body providing means for passage
of a second gas through said mixing nozzle to the
forward end thereof for mixing with the first
gas.
‘
4. A unitary mixing nozzle comprising a nozzle
body having an axial bore therethrough with an
enlarged cavity at the rear end of the bore, a
threaded section intermediate the ends of said
nozzle, an annular projection adjacent the
threaded section, said projection serving to con
_tact an external face of an-internally threaded
body into which said mixing nozzle is screwed
to limit the distance‘which said mixing nozzle
extends into said body, and an injector nozzle
fitted in the cavity in said nozzle body, said in
lector nozzle having a part thereof spaced from
the wall of the cavity and from the rear end of
the bore to provide a chamber communicating
with the bore, the axial bore through said mix
ing nozzle and the passage through said injector
nozzle providing means for passage of ‘a gas
through said mixing nozzle, said nozzle-body hav-v
ing therein a longitudinal passage substantially
parallel to the bore, the longitudinal passage in
said nozzle body providing means for passage J'
of a second gas through said mixing nozzle to
the forward end thereof for mixing with the
first gas.
5. A unitary mixing nozzle comprising a nozzle
body having an axial bore therethrough with an
enlarged cavity at the rear end of the bore, a
through saidmixing nozzle, said nozzle body hav
threaded section intermediate the ends of said
ing therein `a longitudinal passage substantially nozzle, an annular Iprojection adjacent the
parallel to the bore, the longitudinal passage in. threaded section, said projection serving to con--V
45 said nozzle body providing means for passage
of a second gas through said mixing nozzle to the
forward end thereof for mixing with the first gas.
2. A unitary mixing nozzle comprising a nozzle
body having an axial bore therethrough with an
50 enlarged cavity at ‘the rear end of the bore, and
an injector nozzle ñtted in the cavity in said
nozzle body, said injector nozzle having a part
thereof spaced from the wall of the cavity and
from the rear end of the bore to provide a cham
55 ber communicating with the bore, said mixing
nozzle having therein a port communicating with
the chamber the axial bore through said mix~
tact an external face of an internally threaded
body into which said mixing nozzle is screwed to
limit the distance which said mixing nozzle ex
tends` into said body, and an injector nozzle
fitted in the cavity in said nozzle body, said in
jector nozzle having a part thereof spaced from 50
the wall of the cavity and from the rear end of
the bore to provide a chamber communicating
with the bore, the axial bore through said mixing
nozzle andv the passage through said injector
nozzle providing means for passage of a gas 55
through said mixing nozzle, said nozzle body hav
ing therein an annular recess adjacent its rear
ing nozzle and the passage through said injector vend and. connecting with the annular recess a
nozzle providing means formpassage of a ’ gas j longitudinal passage substantially parallel to the
00 through said mixing nozzle, said nozzle body
having therein an annular recess adjacent its
rear end and connecting with the annular recess
a longitudinal passage substantially parallel to
the bore, the longitudinal passage in said nozzle
65 body providing means for passage of a second
gas through said mixing nozzle to the forward
end thereof for mixing with the> first gas."
3. A unitary mixing nozzle` comprising a nozzle
body having an axial bore therethrough with an,
.70 enlarged cavity at the rear end of the bore, and
an injector nozzle flttedin'the cavity in said
nozzle body, said injector nozzle having a part
thereof spaced from the wall of the cavity and
from the rear end of the bore to provide a cham
76' ber communicating with the bore, the axial bore
bore, the longitudinal passage in said nozzlel 60
body providing means for passage of a second
gas `through said mixing nozzle to the forward
end thereof for mixing with the first gas, said
nozzle body also having therein a port extending
from its surface in the rear thereof to the cavity. 66
6. A unitary mixing nozzle comprising a nozzle
body having an axial bore therethrough with an
enlarged cavity at the rear end of the bore, and
an injector nozzle fitted in the cavity in said
nozzle body, said injector ynozzle having a part 70
thereof spaced from the wall'of .the cavity and
from the rear end of the bore to provide a cham
ber communicating -with the bore, said mixing
nozzle having therein a port communicating with
the chamber, the axial bore through said mixing 75
9,109,951
'
\
nozzle and the passage through said injector
through said injector nozzle providing means for
nozzle providing means for passage of a gas
passage of a gas through said mixing nozzle, said
injector' nozzle having a part thereof spaced from
the wall of the cavity and from the rear end
of the bore to provide a chamber communicating
with the bore, said mixing nozzle having therein
a port communicating with the chamben» the
through said mixing nozzle, said nozzle body
having therein ,a longitudinal passage substan
tially parallel to thel bore, the longitudinal pas
sage in said nozzle body being substantially
shorter' than the combined length of the axial
passage and the bore, and providing means for ' bore in said injector nozzle communicating with
passage of _a second gas through said mixing the bore in said handle and with the chamber;
nozzle to the forward end thereof for mixing with said mixing nozzle body having therein a longi
tudinal passage substantially parallel to the bore.
the first gas. '
' `
-'l. A unitary mixing nozzle comprising a nozzle the longitudinal passage in said mixing nozzle
body having an axial bore therethrough, an en
body providing means for passage of a second
larged cavity at the rear end of said bore, and an gas through said mixing nozzle to the forward
air port extending through ‘the nozzle body to end thereof for mixing with said first gas.
1i. in a blownipe a handle having .a bore there» '
the cavity; and an injector nozzle fitted in the
cavity in said nozzle body, said injector nozzle in, n recess with conical walls at tile» forward end
having a nari thereof spaced-from the wall oi the
cavity and. from the res-.r end of the here to
provide a chamber communicating with the here>
and said air port, the axial here through scifi
mixing nozzle and the passage through said inn
lector nozzle providing means for passage of a.
tiiereoiï and another here terminating in the rom
gas through said mixing nozzle, said nozzle body
said hooly in communion-„sn with the fore there@
in, and an injector nozzle fitted
the cavity mi
' having therein a longitudinal passage substan
tially parallel to the bore providing means for
passage of - a >second gas through said mixing
nozzle to the forward end thereof for mixing
with the iirst gaa
il. ln a blowpipe, a handle having oxygen >and
cess; an'
mixing
i
n convex conicni
‘iii the recess at the'
rear
oriented to intr
forward. handle end; s iti 'mixing nozzle corn»
pricing a nomic irony
througlfl and an enlarge ”
„
fain .
:Ihre there“
.e i ai' enel ci
in said nozzle body, said injector nozzle having
a part thereoi spaced from the Wall oi the cavity
and from the rear end of the bore to provide a
chamber communicating with the here,
inn
lector nozzle also having a bore therethrough Eil
fuel-gas passages therein; a stem having a gas' communicating with the bore in said handle
passage therethrough; a unitary mixer; and and with the chamber; the axial bore through
means for securing said mixer between saidV said mixing nozzle and the bore threugh said in
handle and said stem: said mixer having an axial ¿lector nozzle providing means for passage of a
, passage therethrough with a cavity at its rear
gas through said mixing nozzle, said nozzle body im
end, an injector nozzle in the cavity in com
having therein a port for admitting atmospheric
munication with one of the passages in said air to the chamber, and said nozzle nods' also hav»
handle, the axial passage through said mixer and ing therein an annular recess adjacent the open
the passage through said7 injector nozzle provid
ing of the second bore in said handle and conr
Ml ing means for passage of a gas through said municating with the annular recess a longitu dil
mixer, an air duct extending through said mixer dinal passage for a. second gas suhetantially par- '
and communicating with the cavity formed alici to the bore in said nonzle body, the longitu»
therein, and a second passage in communication
with the other passage in said handle, said sec»_
45 ond passage in said mixer providing means for
passage’of a second gas through said mixer to the
forward end thereof for mixing with the iirst gas.
9. In a blowpipe, a handle having a recess
' with conical walls at the forward end“ thereof,
a stem. a unitary mixing nozzle fastened in said
stem, said nozzle having a convex conical rear
end adapted to mate with the receœ at the for
ward handle end, and means for holding said
handle and said _stem together with the rear end
of said nozzle held firmly in the recess in said
handle, said nozzle' having an axial bore there
through, a cavity in its rear end in continuation
, of said bore, and an injector nozzle tltted in the
cavity in said mixing nozzle.
,
, 10. In a blowpipe, a- handle having a bore
therein and a recess, with conical walls at> the
>forward end thereof; andra mixing nozzle having
a convex conical rear end adapted to mate with
the recess at the forward handle end; said'mix
ing nozzle comprising a nozzle'body having an
axial bore therethrough and an enlarged _cavity
at the rear end of said „bodygin communication
’ with the bore therein', 'and an injector nome
dinal passage in said nomic body being adapted
to deliver Íthe second gaa adjacent'the forward`
end of the axial bore in. said nozzle body for mix 45
ture with the ñrst gas.
‘
' 12. In a blowpipe for projecting different mix
tures> of fuel gas and oxygen, a handle having
fuel gas and oxygen passages therein; a stem
having a gas passage therethrough: a removable
unitary
fuel gasbetween
mixer
mixer
and oxygen:
for
saidmixing
handle
and means
theand
desired
_for
saidsecuring
>mixture
stern: said
mixer having a passage therethrough with a
cavity at its rear end, an injector nozzle in the 55
cavity in communication with one of the passages
in said handle, the passage through said mixer
and the passage through said injector nozzle
providing means >for passage of a gaa through
said mixer, an air duct extending through said
mixer into the cavity formed therein,r and a seo
ond passage extending through said mixer sub
stantially parallel to the ßx'st passage there»
through. the second passage being in communi
cation with the other passage‘in said handle and'
providing for passage of a second gas through>
said mixer ,tothe forward end thereof for mixing ’
nttedln the cavity in said nozzle body. the axial " with-rn» am ns'.
1o bore through said mixing uozzle‘nand javboren
-
,1; .uiconssonV
CERTIFICATE CJP-CORRECTION.
Patent No.
2,109,251.
„ '
-
'
February 2g, 1958.
wILGoT J. JAcoBssoN.
It is hereby certified that error appears in the printed specification
of thea»` above numbered patent requiring correction as follows: Page 2, first
column, lineÍ~ 57, claim 2, after the word "chamber" insert a comme; and second
column, lines 10 toV 1hA inclusive, claim "9', strike out the connna and words
" , the longitudinal psfssage in said nozzle body providing means for passage
of èLv second gas through said mixingnozzle to the forward end thereof for
mixing with the first gas" and insert the same after "bore" and before' the
comma in line Y, sumel claim; and that the Asaid Letters vPatent should be
read with these corrections therein that the same may conform to the record
of the case in the Patent Office.
I
y
signed andl sealed this 5th day of April, A. D. 195e.
Henry Van yArsdale,
(Seal)
Acting Commissioner ofl Patents.
Документ
Категория
Без категории
Просмотров
0
Размер файла
711 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа