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July 11, 1950
R. $- GAUGLER
2,514,572
ABSORPTION REFRIGERATING APPARATUS
Filed Sept. 8, 1947
3 Sheets-Sheet l
July 11, 1950
j
R 5, GAUGLER
2,514,572
ABSORPTION REFRIGERATING APPARATUS
Filed Sept. 8, 1947
3 Sheets-Sheet 2
July 11, 1950
'
R. s. GAUGLER
2,514,572
ABSORPTION REF'RIGERATING APPARATUS
Filed Sept. 8, 1947
5 Sheets-Sheet 3
99
B'Y
5 INVEN TjOR.
Patented July 11, 1950v
2,514,572
' UNITED sures-PATENT orrica
2,514,572
ABSORPTION REFBIGERATING APPARATUS
Richard. S. Gaugler, Dayton, Ohio, allilnor to
General Motors Corporation, Dayton, Ohio, a
corporation of Delaware
Application September a, 1941, Serial N... 772,130
11 Claims. (Cl. 62-1195)
1
This invention relates to absorption refrigera
F18‘. 4 is a horizontal sectional view of the re
tion apparatus in which hot refrigerant and
ceiver and fractionator disclosed in Fig. 3;
'
solvent vapor discharged from the generator is
Fig. -5 is a sectional view taken along the line
5-—5 of Fig. 4;
l
brought into intimate contact with the rich
liquor ?owing from the absorber to the gen- 5
Fig. 6 is a diagrammatic view of the form of
erator. This application 13 a continuation-in-
my receiver shown in Figs. 1 and 2 together with
part of my copending application S. N. 510,587
the remaining elements of an absorption remg
?led November 17, 1943, now Patent No. 2,466,541.
crating system; and
‘
The e?iciency of absorption refrigeration apFig. 7 is a diagrammatic view of the receiver
paratus to an important degree depends on the i0 shown in Figs. 3 and 4 together with sumcient
efficiency of the absorber and fractionator
elements to show how it would be used with the
wherein the refrigerant is transferred between
remaining elements shown in Fig. 6.
.
the solvent liquid and a gas or vapor. To secure
Referring now to the drawings and more par
maximum transfer it is necessary to obtain in
ticularly to Fig. - 1, there is shown a receiver
some way intimate contact between the liquid 15 20 containing a fractionator 22. The lower por
- tion of the receiver 20 is connected by a short
and the gas.
It is an object of my invention to provide a
tube 24 with a lower portion of a generator 26
refrigeration structure for holding and conducting liquid in a thin minutely turbulent ?lm of
which may be like the generator shown in the
Gaugler Patent 2,422,401 issued June 17, 1947.
‘liquid of a large area which is freely exposed on go The short tube 24 contains a dividing wall 23 _
_ both sides to intimate contact with ?owing gas.
- from which extends a plurality of small vapor
It isv another object of my invention to provide
suitable means providing ample intimate extensive contact between a thin ?lm of rich liquor
from the absorber and hot vapor from the gen- 25
erator within, the receiver container to secure
high e?iciency from the system at low cost.
These objects are attained by providing within the receiver a wire screen structure formed
of two capillary wire screen portions having large 3' 30
lift tubes 30 by which liquid in the receiver is
lifted up to the level of liquid in the generator
25, as explained in said patent. The generator
26 is heated by a gas burner 21. The vapor
generated in the generator is conducted to re
ceiver 20 by the vapor pipe 32 which enters the
central portion of the top of the receiver 20 and
extends directly downwardly 1110118 the axis of
the receiver 23.
areas in intimate contact with each other and
' The fractionator 22 is in axial alignment with
having a sheet metal member spaced 9. short
the portion of the vapor tube 32 which extends
distance beneath, with a wire screen thereon
into the receiver 24.
for catching liquid drained from the double
the fractionator I2 is a set of slightlyrconical
The principal element of >
screen structure. There is also a sheet metal 35 wire screen members 34 and 36 which have cen
member spaced above the double screen structral apertures which receive a ?anged sleeve 33.
ture which holds liquid in a thin ?lm and‘ is proThe hot refrigerant absorption vapor from the generator is discharged beneath the screen structure and ?ows between 40
This ?anged sleeve 38 has its sleeve portion
extending within the sleeve portion of the dis- 1
tributor head 40. These members 38 and 43
telescope together so that the edges of the cen
each set of members from the bottom to the top
tral _ apertures of the screens 34 and 36 are
vided with a cover.
in intimate contact with the thin liquid ?lms.
Further objects and advantages of the present
invention will be apparent from the following
gripped between the ?ange of the member 33
‘ and the bottom of the distributor head 43.
Around the edge portions of the screens 34 and
description, reference being had to the accom- 45 36 there are provided six symmetrically posi
panying drawings, wherein a preferred form of
tioned eyelets 42 which, together with the mem
the present invention is clearly shown.
bers 38 and 40. serve to hold the screens in direct
In the drawings:
intimate area contact with each other to form a
Fig. 1 is a vertical sectional view taken along
capillary structure capable of holding and con
the line l-l of Fig. 2, disclosing a fractionator 50 ducting liquid in a thin ?lm. The eyelets also
located in the receiver and adjacent parts;
serve as passages to permit the ?ow of vapor
Fig. 2 is a top view, partly in section. of the
from beneath the screens to the space above the
receiver and fractionator disclosed in Fig. 1;
screens.
Fig. 3 is a vertical sectional view taken along
Beneath the screens 34 and 33 there is pro
the line 3-3 of Fig. 4 disclosing a modi?ed form 55 vided a sheet metal bottom plate 44 which is
of receiver and fractionator embodying another
slightly conical in shape, but tapered oppositely
form of my invention;
'
t0 the screens 34 and 3.. This bottom plate 44
2,514,572
holds a small pool of liquid, and since these
screens are slightly conical, the liquid will ?ow
has a large central aperture and resting in direct
intimate area contact upon the upper surface
by gravity around the intersecting wire strands
of the plate 44 is a slightly conical circular screen
member 46 having a ?anged central aperture in
from one interstice or pool to another. This
causes a very minute turbulence of the liquid in
each tiny pool so that new molecules are ex
which the ?ange portion 48 extends through the
central aperture in the member 44.‘ The rim of
the sheet metal bottom plate 44 is o?set upward
ly to form an offset ?ange which is clamped be
tween the lower edge 66 of the sheet metal top
plate 62 and a spacer ring 64. The screen mem 10
ber 46, like the bottom plate 44, is provided with
an offset shoulder and the periphery of this off
set shoulder together with the peripheries of
posed in every move from one tiny pool to an
other. Due to the effect of gravity there tends
to be more liquid on the bottom of the lower
screen and more ,of the ?ow takes place on its
lower face. When the liquor reaches the periph
eral edges of the screens 34 and 36 it drains onto
. the bottom plate 44.
The screen 46 on top of
the slightly conical bottom plate 44 distributes
the screen members 34 and 36 are held against
a shoulder provided on‘ the spacer 64 by the 15 the liquid over the entire surface of the bottom
plate 44 substantially equally and slows the
offset shoulder of the bottom plate 44. Above
draining process. The screen 46 also provides
the top plate 62 is a sheet metal body member
turbulence for the liquid ?owing on the bottom
66 having a wide downwardly extending ?ange
plate 44 over the intersections of the strands
66 which rests upon‘ a large supporting ring 66
fastened within the receiver 20. The wide ?ange 20 until it reaches the central aperture wherein the
screen 46 is formed into a lip 48 to make uni
66 is provided with ya head 62 by whichthe as
form the drainage of the liquid from the bottom
sembly composed of the bottom plate 44, the
screens 46, 34 ‘and 36, the ring 64 and the top
plate 62 are held tightly against the shoulder
plate 44.
The vapor from the generator 26 which is
25 high in ammonia and low in water vapor is
discharged from the lower end of the tube 32
A wide ?at annular groove 66 is provided in
64 provided upon the body member 66.
,
with su?icient velocity to cause it to contact-the
the upper surface of the top plate 62. This
surface 84 of the liquid in the receiver 20 which
groove 66 is bordered on the outside by sloping
is made up of liquid drained from the bottom
side walls 66 and on the inside by the sloping
side walls 10 which con?ne the liquid to the 30 plate 44. The liquid in the bottom of the re
ceiver 26 is heated by weak liquor ?owing
surface of the groove '66.. At one point in the
through the pipe coil 66 which has one end con
groove 66 there is provided a partition 12 which
nected to and extending through the dividing
extends entirely across the groove 66 and pro
wall 28 to carry hot weak liquor from the bot
vides a dam. Upon one side of this partition
the sloping side wall ‘Ill is cut out forming an 35 tom of the generator 26 to the top of the inter
changer 16. After being cooled in the‘ inter
opening 13 and bent down and curled to form a
changer 16 this weak liquor passes through the
spout 14 which extends into the annular cup
tube 96 into the absorber 63. The hot mixture
portion of the distributor 46.‘ Between the top
of ammonia and water vapor discharged from
plate 62 and the top of the body member 66,
there is provided a ?anged spacer ?tting upon 40 the pipe 32 picks up whatever ammonia is va
porized upon the surface 64 of the liquid in the
the top of the distributor 40. The cutting out
receiver and thence flows upwardly through the
and turning down of the spout 14 from the wall
aperture within the ?ange 48 and then spreads
‘ll provides the opening 13 in this wall 16 directly
above the spout 14 through which both gasiand _ radially ?owing between the screens 46 and 34.
liquid may ?ow. A washer ?ts on top of the 45 Here the hot water vapor in the gas is attracted
by the cooler liquid upon, and held by the
distributor member 46, spacer and the body
.screens and is condensed therein and conse
member 14. and is pressed against by a spring
quently ammonia vapor in the liquor in- the
16 threaded on the tube 32 and serves to hold
screens is driven out by the heat of condensa
the fractionator assembly in place against the
ring 66.
a
50 tion and by the sensible heat of the gas. After
the gas has ?owed to the peripheral edge of the
Rich liquor is supplied from the absorber 63
screens it passes upwardly through any one of
through an interchanger ‘I8 and the pipe 80 to
the interior of the receiver 26. The mouth of
the pipe “is provided with capillary material
62, such as wire gauze, braided wire sleeving or
wire screen which assists in the smooth draining
the six eyelets 42 and then is forced to ?ow in
' wardly.
In its inward ?ow the gas is in intimate _
contact below with the liquid held-by the upper
screen 36 so that there is, a further transfer of
water vapor from the gas to the liquid in the
of rich liquor fromthe tube 66. An opening 64
screen and liberation of ammonia from the liquid
is provided in the body member 56 for receiv
in the screen to the gas or vapor. Also this gas
ing the tube 80 and the capillary material 82.
The capillary material .82 contacts the groove 60 flows on the bottom side of the top plate, thus
heating the top plate andcausing the ammonia
66 close to the partition 12 upon the side opposite
from the rich liquor traveling around the groove
the spout portion 14. This forces the rich liquor
66 in a thin ?lm to be evaporated. After reach
deposited upon the top plate 62 to ?ow counter
clockwise in a thin film substantially 360 de
ing the central portion of the top plate 52 gas
grees in the groove 66 before it can flow over 65 passes through the opening in the inner wall ‘I0
the lip or spout 14 into the annular cup portion
provided at lip or spout. 14. The partition 12
of the distributing member 40.
v
forces this gas to pass clockwise through the
The bottom of the cup portion of the distrib
groove 66, being con?ned by top of the body
uting member 40 is provided with a dozen small
member 56 and sloping side walls 68 and 16,
holes which evenly distributes the rich liquor
so that additional water vapor is absorbed from
to the screens 34 and 36, held in intimate con
the ?owing gas by the liquor in the groove 66
tact with each other throughout, as before ex
and the gas acquires ammonia vapor from the
plained. Preferably these capillary screens are
liquor ?owing in the groove 66. The gas is then
of 40 mesh .010" steel wire. The rich liquor is
held and conducted by these screens in a very 75 discharged through the opening 84 in the top
thin ?lm of large area and each of the interstices , plate 66 with the ammonia saturation substan
5
2,514,578
'
tlally at the maximum for the liquor as supplied
by the tube III. This gas then ?ows through the
outlet 93 to a suitable recti?er where additional
5
the screens "I and I33.v ‘The second edge I53
of the slit in the screens I3I and I33 is turned
downwardly and fastened to the up-turned edge
water vapor is removed and thence passes to a
I55 of a similar transverse slit in the bottom
condenser 95 to be condensed. The condensed
ammonia ?ows by gravity from the condenser
' 95 into the evaporator 91. Evaporation of the
condensed ammonia in the evaporator 91 is pro
moted by the circulation of an inert gas between
the evaporator 91 and the absorber 33 through
the gas heat exchanger 99. The top of the liquid
heat exchanger 13 is connected by a tube 92 to
the outlet tube 90 to provide a vent to equalize
plate I23. This slit in the bottom plate I23 also
has a down-turned edge I51.
In this form of receiver, the ammonia and
water vapor discharged from the generator may
be conducted downwardly along the vertical axis
of the receiver as is disclosed in Figs. 1 and 2.
but as shown in Figs. 3 to 5 an alternative con
struction is disclosed in which the water and
ammonia vapor generated in the generator I53
pressures in the weak liquor tubes.
v
enters the receiver I2I through the pipe I59 at
By virtue of this arrangement the receiver 23 15 a level Just below the bottom plate I 23. In its
serves as a housing for the fractionator 22 and
?ow across the ‘receiver, this hot gas picks up
water vapor is, removed from the generator
ammonia vapor from and deposits water vapor
vapor and its ammonia content increased
upon the surface III of the rich liquor in the
through a favorable transfercondition.
bottom of the receiver. The remainder of this
A second form of fractionator within the re 20 gas passes between the lips I55 and I51 in the
ceiver is shown in Figs. 3 to 5; In this form
bottom plate I23 to the space between the lower
there is provided in the receiver I2I a-bottom
set of'screens I 3I and I33 of the bottom plate
plate I23 with an inner up-turned ?ange I25 fas
‘I23. In this space it meets the thin ?owing ?lm
tened to a sleeve I21 and an outer up-turned
?ange I29 which is fastened to the wall of the
receiver I2I. The bottom plate I23 is ?at and
capable of holding a thin ?lm of liquid through
out this large ?at area.
Above the bottom plate I23 are two disks I3I
and I33 of wire screen material in direct inti 30
mate area contact with each other throughout,
of rich liquor which .?rst travels in a counter
clockwise direction upon the upper set of
screens I31 which hold and contact the rich liq
uor in a thin ?lm by capillary action.
As mentioned in connection with the first em
bodiment the interstices of the screen members
hold tiny pools of liquid which are kept in tur
bulence by the liquid ?owing around the inter
secting wire strands forming the screen mem
bers from one pool to another. Through this
forming a capillary structure capable of holding
and conducting a thin liquid ?lm. At their cen
tral portions there are provided up-turne'd
. arrangement the liquid in a wide thin turbulent
?anged apertures, the upper edges of which are 35 flowing ?lm is exposed to the gas on both sides.
fastened to the sleeve I21. The peripheral edges
The liquid after having passed in a counter
of the two screens I 3| and I33 are likewise pro
clockwise direction from one end of the upper
set of screens to the other is drained by the
edges of which are preferably fastened to the
down-turned lip I5I onto the lower set of screens
outer up-turned ?ange I29 0! the bottom plate 40 I3I and I33 upon which the liquor is conduct
I23. Above the screens I3I and I33 is a second
ed‘ in -a counterclockwise direction completely
set of screens I31 in direct intimate area con
around the screens to the lip I53 from which the
tact with each other, which are fastened to the
liquor is drained onto the bottom plate I23. The
sleeve I21 and the ?ange I29 by up-turned edges
lip I55 on the bottom plate I 23 forces the liquid
vided with up-turned ?anges I35, the upper
in a similar manner. This second set of screens
I31 form a second capillary structure capable of
holding and conducting a thin liquid ?lm
throughout their contacting area. Above this
second set oi‘ screens I31 is a top plate I39 pro
vided with an upwardly ?anged central aperture 50
I4I fastened to the top of the sleeve I21 and
an outer up-turned ?ange I43 fastened to the
up-turned outer ?ange I29 of the bottom plate
vI23. The up-turned edges of the screens I3I,
I33 and I31 prevent the draining of the capillary
illm down the surfaces of the ?ange I29 and the
sleeve I21. .
As better shown in Fig. 5, the top plate I39 is’
slit transversely and provided with an up-turned
edge I45 and a down-turned edge I41 forming
an opening therebetween. The tube I49, which
conducts strong liquor from the absorber and
interchanger to the receiver, enters the receiver
substantially adjacent the up-turned edge I45
and has the bottom of its inner surface sub
stantially at the level of the upper set of screens
I31 so that the rich liquor discharged by the
pipe I49 is received and spread into a thin capil
lary ?lm by the upper set of screens. The up
to ?ow entirely around the bottom plate I23 in
a counterclockwise direction until it reaches the
down-turned lip I51 which permits it to drain
into the bottom of the receiver I2I.
Y
‘The gas then, after entering between the lips
I55 and I51 ?ows in a direction opposite to the
?owing ‘film of rich liquor. In other Words, a
clockwise direction, and being exposed to the
?owing ?lm of liquorbe'low and above as it
passes through the passage de?ned by the
screens I3I and the bottom plate I23. After
?owing through this “passage substantially 360
degrees the gas passes upwardly between the
lips I5I and I53 to the passage between the
upper and lower sets of screens from which point
it passes in a clockwise direction substantially
360 degrees until it reaches and .passes between
' the turned up edges I41 and I5I where it begins a
third clockwise passage which is formed between
the upper set of screens I31 and the top plate
I39. The gas is then finally discharged between
the edges I45 and I41 and escapes from the re
ceiver I2I through the outlet pipe I53.
Weak liquor is conducted from the generator
I53 through the weak liquor tube I55 having a
per set of screens I31 are slit transversely in a 70 coiled portion in the bottom of the receiver I2I
manner similar to the top plate and one edge
which extends upwardly through the sleeve I21
is turned up and fastened to the down-turned
and terminates within the tube I53. The tube
edge I41 of the top plate I39. The second edge
I55 is connected to a second weak liquor tube
I5I is turned downwardly and is fastened to an
I51 which extends through the tube I49 to the
up-turned edge of a similar transverse slit in 75 interchanger I10 and the absorber I12. The coil
2,514,672
.
portion of the weak liquor tube Iii heats, and
assists in vaporizing some of the ammonia in
the rich liquor in the bottom of the receiver.
In this fractionator the gas, in addition to con
tacting the liquid surface ISI, contacts ?ve 5
liquid surfaces each having an area substantially
equal to the area of the liquid surface IGI.
Through the contact of the gas with such ex
tensive liquid surfaces presented, particularly in
a thin film which has minute turbulence given
to it by the wire screen structure, e?icient trans
fer of the ammonia from the liquor to the vapor
is obtained.
While the form of embodiment of the inven
tion as herein disclosed. constitutes a preferred
8
4. Absorption refrigerating apparatus includ
ing a generator and an absorber and an en
closed container means, two large portions of
wire screen in direct area contact extending
laterally within the container means, said con
tainer means being provided with a rich liquor
inlet means connected to the absorber, said inlet
means having its lowest liquid holding surface
entering substantially at the highest level of the
screen and having means for discharging the
rich liquor substantially upon the highest portion
of the screen, said screen being provided with an
opening, means for discharging hot refrigerant
and absorbent vapor from the generator beneath
the screen, and baiile means above the screen
for forcing the vapor to flow from said opening
over large portions of the screen.
form, it is to be understood that other forms
might be adopted, as may come within the scope
5. Absorption refrigerating apparatus includ
of the claims.
ing a generator and an absorber and an enclosed
What is claimed is as follows:
1. Absorption refrigerating apparatus for trans - 20 container means, a horizontal member extend
ing within‘ the container means. a liquid hold
ferring a refrigerant between absorption liquid
ing means capable of holding liquid in a thin
and a gas comprising a generator and an ab
?lm exposed on both sides extending transversely
sorber and an enclosed container means, two
within the container meansbeneath but spaced
large portions of wire screen in continuous direct
intimate area contact with each other through 25 from said horizontal member, means for ?owing
rich absorption liquid from the absorber onto
out large areas to form a thin capillary structure
one portion of said horizontal member, means
capable of holding and conducting throughout
for directing the liquid from said horizontal
their contacting area a liquid film of such thin
member to said liquid holding member, said con
ness to assure intimate contact between all of
the liquid and the gas, said areas extending 30 tainer means being arranged to collect liquid
discharged from the holding means beneath the
laterally within the container means, means for
holding means, means for discharging refrigerant
feeding rich absorption liquid from the absorber
and absorbent vapor from the generator within
to one portion of the wire screen and draining
said container means beneath said liquid hold
liquid from another portion, baiiie means above
ing means and above the collected liquid, means
and below said screen, and means for ?owing ‘a
for conducting the vapor from below the liquid
gas from the generator substantially parallel to
holding means to above the liquid holding means
and in direct contact with the screen along both
beneath said horizontal member, means for con
sides thereof between the baffle means and the
ducting vapor from beneath the horizontal mem
screen for obtaining intimate contact with the
rich absorption liquid to transfer some refrigerant 41 her to above the horizontal member, and a shield
extending over said horizontal member for forc
from the rich absorption liquid to the gas.
ing the'vapor to flow over the liquid thereon.
2. Absorption refrigerating apparatus for
transferring a refrigerant between absorption
6. Absorption refrigerating apparatus'includ
ing a generator and an absorber and an enclosed
liquid and a gas including a generator and an
absorber and an enclosed container means, two 45 container means, a liquid inlet connection from
the absorber extending to the side of the con
large portions of ‘ screen material in continuous
tainer means for feeding rich absorption liquid
direct area contact throughout large areas to
thereto, a horizontal sheet metal member ex
form a thin capillary structure capable of hold
tending within the container means at a level
ing and conducting throughout their contacting
area a liquid ?lm of such thinness to assure in- ,
timate contact between all of the liquid and the
gas extending laterally within the container
means, means for feeding rich absorption liquid
below said inlet connection for receiving liquid
therefrom, two large portions of wire screen in
direct area contact with each other extending
laterally within the container means, means for
discharging liquid from the central area of said
from the absorber to one portion of the screen
material and draining it from another, and means 55 sheet metal member onto the central area of
said screen portions, means for discharging vapor
for ?owing hot refrigerant and absorbent vapor
from the generator beneath said screen portions,
from the generator parallel to and in direct
said screen portions having edge portions ar-‘
contact with the screen on both sides thereof for
ranged to provide a passageway for the vapor
obtaining intimate contact with the rich ab
sorption liquid to transfer some refrigerant in ill to flow from beneath the screen portions to above
the screen portions, the central area of said sheet
the rich absorption liquid to the ?owing vapor.
metal member having an opening to provide a
3. Absorption refrigerating apparatus includ
passageway for said vapor.
ing a generator and an absorber and an enclosed
7. Absorption refrigerating apparatus com
container means, two large portions of screen
prising a generator and an absorber and en
material in direct area contact throughout ex
closed container means having a cylindrical wall
tending laterally within the container means,
portion, a vapor inlet conduit extending from
means for feeding rich liquor from the absorber
the generator having its outlet substantially in
to one portion of the screen material and drain
ing it from another and collecting the drained
the center of the container means, a set of two
liquid in the bottom of the container means, 70 wire screen members in direct area contact with
means for discharging hot refrigerant and ab
each other throughout a major portion of their
areas, said wire screen members each having a
sorbent vapor from the generator beneath said
conical surface with a central aperture at the
screen material, and means connecting to the
highest point, said central aperture being located
container means above the screen material for
conducting vapor away from the container means. 75 substantially concentric with and adjacent the
2,514,572
10
-
and an enclosed container means connected be
mouth of said inlet conduit, an annular dis
tributing member surrounding said inlet conduit
and having its outer rim overlying the inner edge
of said screen members, means for feeding rich
liquor from the absorber to said distributing
member so that it discharges and the discharging
tween the generator and the condenser and the
absorber through which the hot refrigerant and
absorbent vapor ?ows from‘ the generator to the
condenser and the cool rich absorption liquid
?ows from the absorber to the generator, said
container means having side wall portions and
a thin liquid ?lm conducting means extending
substantially laterally between the side wall por
' liquid ?ows onto and saturates the contacting
screens and is drained from the peripheral por
tions and collected in the bottom of the container
means, and vapor and liquid outlets for said 1O tions capable of conducting rich absorption
liquid in a continuous thin ?lm exposing a ?ow
container means.
ing liquid surface on its upper and lower faces,
8. Absorption refrigerating apparatus com
said container means being provided with means
prising a generator and an absorber and en
for conducting the rich absorption liquid from
closed container means having a cylindrical wall
portion, a vapor inlet conduit extending from the 15 the absorber to an initial portion of the liquid
?lm conducting means and with means for ?ow
generator having its outlet substantially in the
ing the hot refrigerant and absorbent vapor from
center of the container means, a set of two wire
the generator parallel to and in direct contact
screen members in direct area contact with each
with both the lower and the ,upper surfaces of
other throughout a major portion of their areas,
said wire screen members each having a conical 20 said cool ?owing thin ?lm to cause condensation
of the absorbent vapors and the consequent lib
surface with a central aperture at the highest
eration of the refrigerant vapors by the rich ab
sorption liquid to enrch the vapor ?owing to the
condenser, said liquid ?lm conducting means
point, said central aperture being located sub
stantially concentric with and adjacent the
mouth of- said inlet conduit, an annular dis
tributing member surrounding said inlet conduit 25 being provided with a drainage formation to pro
mote the ?ow of the liquid ?lm from said initial
and having its outer rim overlying the inner
portion along the conducting means to a dis
edge of said screen members, a ?rst sheet metal
charge portion.
member above and spaced from said screen mem
11. Absorption refrigerating apparatus in
bers to form a ?rst passageway therebetween for
vapor, a second sheet metal member below and 30 cluding an enclosed container means, two large
portions of screen material in continuous direct
spaced from said screen members to form a
area contact throughout large areas to form a
second passageway, said second sheet metal mem
thin capillary structure capable of holding and
ber having a central aperture, said screen mem
conducting throughout their contacting area a
bers being constructed to provide passageways ad
jacent the periphery connecting the ?rst and sec
ond passageways, means for feeding rich liquor
from the absorber to said distributing member so
35 liquid ?lm of such thinness to assure intimate
, contact between the liquid and a gas, an absorber
that the liquor discharges onto and saturates the
screens, the surplus liquor draining from the
peripheral portions of the screens onto said sec
ond sheet metal member, said ?rst sheet metal
member having an aperture in its central portion
to permit the escape of vapor.
having means for feeding rich absorption liq
uid to a liquid receiving portion of the screen
.material, the screen material extending substan
tially laterally within the container means and
provided with a drainage formation to promote
the ?ow of rich absorption liquid from said liquid
receiving portion to another portion for drain
ing, agenerator provided with means for draw
prising a generator and an absorber and en 45 ing the drained rich absorption liquid from the
container and expelling hot refrigerant and ab
closed container means having a cylindrical wall
9. Absorption refrigerating apparatus com
sorbent vapor into the container beneath the
contacting portions of the screen material, said
container containing means including ba?le
center of the container means, a set of two wire
screen members in direct area contact with each 60 means above the contacting portions of the
screen material for directing the ?ow of the hot
other throughout a major portion of their areas,
refrigerant and absorbent vapor parallel to and
said wire screen members each having a conical
in direct contact with both the upper and lower
surface with a central aperture at the highest
surfaces of the contacting portions of the screen
point, said central aperture being located sub
stantially concentric with and adjacent the 55 material for obtaining intimate contact between
the hot vapor and the cool rich absorption liq
mouth of said inlet conduit, an annular dis
uid ?owing in the thin ?lm adhering to the con
tributing member surrounding said inlet conduit
tacting areas ‘of the screen material to transfer
and having its quter rim overlying the inner
some refrigerant in the rich absorption liquid
edge of said screen members, a ?rst sheet metal
member above and spaced from said screen 60 to the ?owing vapor.
portion, a vapor inlet conduit extending from the
generator having its outlet substantially in the
RICHARD S. GAUGLER. ’
members to form a vapor passageway therebe
tween, a covering sheet metal member above and
REFERENCES CITED
spaced from said ?rst sheet metal member to
provide a second vapor passageway, said ?rst
The following references are of record in the
sheet metal member having an opening in its 65 ?le of this patent:
central portion providing communication be
tween said passageways, said ?rst sheet metal
member also having means for discharging rich
liquor into said distributing member, and means
extending vfrom the absorber for feeding rich 70
liquor from the absorber to said ?rst sheet metal
member.
10. Absorption refrigerating apparatus includ
ing a generator and a condenser and an absorber
rmrrsn STATES ra'mn'rs
Number
1,107,455
1,979,482
Number
245,254
Name
Date
Sintz ____________ .... Aug. 18, 1914
Kohler ___________ __ Nov. 6, 1984
FOREIGN PATENTS
Country
Date
Great Britain ...... _. Jan. 7, 192B
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