CA2176705A1 - Evaporator - Google Patents
EvaporatorInfo
- Publication number
- CA2176705A1 CA2176705A1 CA002176705A CA2176705A CA2176705A1 CA 2176705 A1 CA2176705 A1 CA 2176705A1 CA 002176705 A CA002176705 A CA 002176705A CA 2176705 A CA2176705 A CA 2176705A CA 2176705 A1 CA2176705 A1 CA 2176705A1
- Authority
- CA
- Canada
- Prior art keywords
- wall
- sheet
- evaporator
- metal sheet
- connecting surfaces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/022—Evaporators with plate-like or laminated elements
- F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Air-Conditioning For Vehicles (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
An evaporator which encloses a refrigerating chamber (4) of a compressor-type refrigeration unit operated with hydrocarbons and is enclosed on the outside by a heat insulating layer (3) and is provided with a meander-shaped refrigerant duct (8) with a refrigerant inlet (9) and a refrigerant outlet (10) between two metal sheets of the evaporator wall, i.e. an inner and an outer metal sheet (5 and 6), with the two metal sheets (5, 6) mutually having a fixed metallic connection (11) in form of welding or soldering next to and between the refrigerant duct segments, with an additional inner-wall sheet (7) being provided on the refrigerating chamber side which forms the inner wall of the evaporator wall of the refrigerating chamber, which is provided with a metal surface contact with the inner metal sheet and which within the surface contact zone between the inner-wall sheet (7) and the inner metal sheet (5) is provided with connecting surfaces (13, 13a) of the welded or soldered type.
Description
PCr~EP/94/03so3 21 76 705 F.~ApORATOR
The in~rention relate~ to an evaporator which enclose~ a xefrige~ating c~amber o~ a compres6~r-t~pe refrigeratlon unit opcrated wich ~ydrocarbon6 a~ refrigerant and which i9 enclosed on the out~ide by a heat in~ulating layer and is pro~rided between two me~al sheets of the e~aporator ~all, i . e . an inner and an outer metal ~heet, with a meander-shaped refrigerant du~t with a refrigerant inlet and a re~rigexant outlet, wi~h the two metal sheet~ mutually ha~ing a f ixed metallic connection in fonn of welding or ~olderi~g next to and bet~ee~ the refrigerant duct seg~ents, with an additional innex-wall ~heet being pro~rided on the re~rigera~t chamber side ~hich forms the in~e~- wall of the evaporator wall o~ the refrigeran~
char,~er, which i8 pro~ided ~ith a metal su~ace ~t~çt wi~h the inner metal ~heet and which wi~hin the ~urface con~act zone between the inner-wall shee~ and the inner metal ~heet is pro~ided with connecting ~ur~ace~ of th~
welded or soldered type.
~n e~aporator equlpped with the aforemen~ione~ fea~res is ~no.nl. from DE-A-l 426 923. This known e~aporator, howe;er, is ~ot pro~ided ~ith any addi~ional protectlon agai~-st lea-:age~ . With respect to heat PYch~ngers~ in partlc-~lar ~uch o~ the "roll ~o~; ngl~ type, additional plate~ ~o:~ rhe protec~ion again~t leakages were kno~n (~S-A-4 678 027 and EP-~-0 206 416).
In order to form a refrige~ating cham~er, evaporators ar~
regularly shaped from respecti~e plane evaporaror bl~.~k~
~hich - ~en ~haped - fonm ac least the ~our wall~ o~ the rerigerating ~mhe~, e.g. a ~reezer ~t~on, and freguently also the rear wall. Such evaporator blank~ and their production according to the ~o-called roll-bo~ g ;
~ethod are ~hown in D~-C 1 552 044 by way o~ example.
Dur~ng ~he roll-bonding proce6~, where the two layers of the blank are mutually joined by r~ welding with the ~tretchlng of the s~bst~ate, preci~ely delimited areas which form the uture cource o~ the re~rigerant duct are en~ured by separating layer~ ~ade ~rom weld-ob~tructing material. This measure is de~cribed by way of exa~ple in DE-C 1 920 424.
Tn the past only hydrocarbon was u~ed as a refri~erant (CFCs), wherea~ newer refrigeratin~ ~ystem~ use hydrocarbon~ Fuch as isobutane, i~opropane or propane-butane. The6e hydrocarbon~ form an inflammable mixture with air, so that increasingly ex~?lo~io~-protected elect~ical de~ice~ are used in the zone o~ the refrigerating ~h~
ae a preca~tionary mea~ure. In addi~ion, ~ n~ ar~ made ~or additional measures to pre~ent refrigerant leakage6, in partlcula~ towarda the re~rigerating r~mh~
It i~ the ob;ect in accordance with the invention to provide an e~aporator of the kind mentioned abo~e ln such a way that the danger of a refrlgerant leaka~e w~thout any sub3tantial lo~s in the refrigerating ou~put o~ the evaporator i~ reduced.
It i~ therefore p~oposed in accordance with the invention that between ad~ acent connecting surfaces there are t~in separating layers between the inner-~all ~heet and the inn&X ~etal cheet which ha~e a m~ shaped course which 1~ adapted ro the ~n~ r-sh~ couree o~ the refrigerant duc~, ~ut a~e each wider t~an the re~rigerant duct.
Reference i~ hereby made eo embodiments of the invention pursuant to ~he subclalms. Thu~ a ~lrst em~o~;mont pro~ide~
that the connect~g sur~ace~ between the inner-wall ~heet and the inner meeal ~hee~ are li~lted to se~ip-like or 3 2~ 76705 in~ular ~urface segments w~ic~ are dlstr~buted o~r the evaporator wall.
F~rther e~bodiments of the l~vent~on al~o provlde additional oecurity on the out~ide in Buch a way that on the slde of the insulating layer there is pro~iaed an additional outer-~rall sheet which forrns the ou~er wall of the e~aporator wall and has metallic surface contact wich the outer ~etal s~eet, ~nd that within the s~r~ace contact zone between the outer-wall ~heet a~d the outer metal sh~et there are connecting 8urfa~e6 of the soldered or welaed t~p~. Between adjacen~ outer connecting 6urfaces there are pro~ided thin oute~ separatlng layers betwee~ the oute~-~all 6heet and the outer metal ~heet which ha~e a meander-~haped cour~e adapted to the meAn~er-~haped cour3e of the re~rigerant d~ct, ~ut are each wider than said ~e~rige~ant duct.
~ Sl~ilaz to the inner protection it i~ proYided advantageou~ly in this respect that the outex connecti~g ~ur~ace~ between the outer-wall sheet and the outer metal sheet are limi~ed to strip~ e or insular surface ~egme~ts ~hich are distributed o~r the ~a~otator wall.
~n an e~aporator where the fixed metallic co~nec~ion between the inner metal sheet and the outer metal sheet i~
manu~actured by welding under application of roll-weldlng according to the roll _h~Ai ~ method and the refrigerant duct i~ manufactured by infla~ing non-welded zoneQ prior to the ~haping of ~he eva~o~dtor~ the CQ~e~ting s~rfaces between the inner wall and the lnner ~etal sheet or ~e~een the o~t~r wall and the outer metal sheet are produced in one pa~s with the roll-~elding of in~er and outer ~et~l sheet.
The object ~s achieved by the in~ention in a simple way.
~xcept ~or the use of further ~heet~ for th~ inner-wall ~ sheet and, optionally, the outer-wall shee~c the invention doe~ not rec~uire any ~dditional manufacturing wor~c, because t~e welding of the three or four laye~, for example, car~
~e carried out according to the roll-horl~i ng met:hod in one paE3~ and with the exi~ting eq~ipment.
The in~rention i~ now explained below by ref erence to the embo~;ment~ shown in the Pigures, which ~how in a ~chematic representation a3 ~ollow~3:
Fig 1 an evapora~or of a co~pressor-ty~e refrigeration Unit:
Fig. 2 a ~;ectional view of an evaporator ~all;
Fig . ~ a top view o~ an evaporator wall i Fig. 4 a gec'clonal view o~ a~ e~d~o~ c.tor wall in a perepecti~re ~iew.
Fig. 1 show~ an evaporator 1 wi~ h the ~our evaporator walle 2 which are formed from a respecti~rely large e~raporato~
~lank by the ben~in~ thereo~. The ev~poL~tor is enclosed on the outside by a heat insulating layer 3 which is only showr~ in a sectional view, The re~rigerating ch~rnhe~ 4 iB
limited at t~e rear regmlarly }~y a rear wall ~not designated in cloeer detail).
The evaporator wall 2 is shown in a pa~tly sectional ~iew, with its ar~angement ~eing more clearly visible in ~ig. 2.
I t con~ists of an inner metal ~heet 5 and an outer ~etal sheet 6 and an inner-wall ~heet 7. 'rhe re~igerant duct ~
i6 located beeween the inner metal sheet 5 and the outer metal ~heet 6. The re~rigeran~ duct ~ 1~ p~o~ide~ with a re~igerant inlet 9 and a refrigerant ou~let 10, a~ i6 sho~ in Fig. 1.
~ig~ 2 6how~ moreo~er that ~he inner metal sheet 5 iB
pro~ided with a ~ixed metallic connectio~ 11 ~ith the outer metal aheet 6 on either side of the refrigerant duct ~, ~hich has the form of a welding here. For the sake o~
improved clarity it ii outlined o~erproportionally. In the refrigerant duct ~er ~e the aeparating central layer 12 i~
al90 Bhown overp~o~ ionally, which layer enabled the inflation o~ the ~efrigerant duct 8.
~etween the inner me~cal ~he~t 5 ar~d the inner-wall ~heet 7 there are o~erproportlonally repreeented connectlng surfaces 13, 13a, which ar~ of the welded type ~ere. ~ thl~
separating layer 14 i~ provided between the connecting our~acee 13 and 13a.
Fig. 3 shows an e~apo~a~or wall 2 in the wall arrangement pursuant to Fig. 2 without the insulating la~er, as seen ~rom t~e outside. The u~broken d~l m~ tin~ lines o~ she refrigerant duct 8, which has a substanclally ~n~
Ghaped course, project ae relie like ~he circular and o~al ~olid metal connections 11 in a ~idened re~e.ring zone. A~
i~ de~ignated by the dot-dash lineb, the re~rigerant duct ~r~nrhes numerously therein.
A pair o~ broken linei Pn~r~Qs~ the respec~i~ely ~ering separating layer 1~. It can be ~een that the ~eparating layer 14 is wider than the refr~gerant duc~ 8 ~ig. 4 6ho~6 a perspective and sectlonal vie~ ~f a separating wall 2 which con~ist~ o~ rhe inner-wall sheet 7, the inner metal sheet 5, the ou~er metal 6~eet 6 and the ou~er-wa~l ~heet 15.
In ~uch an ~vaporator wall 2 the inner-wall shee~ 7 and the outer-~all sheet 15 cou}d be made of alumlnium ~Al 99.5) and each ha~e a thick~ess of approx. 0.6 m~.
6 21 767~5 The lnner-~all sheet S i6 made f~om zirconium-containing aluminium ~AlZr) and ha~ a thick~e~s of O.2 and O.6 ~m. The outer-wall ~heet 6, with a ~hickne~ of O.5 ~m, i~ again ~ade ~rom AluminiU~ (Al 99.5)~ ~etween adjacent outer connecting ~ur~aces 17 ~etween the outer-wall ~heet 15 and the outer metal sheet 6 there are provided thin outer separating layers 16 which also have a mea~der-~haped course adapted to the meander~Fh~re~ ~our~e o~ the refrigerant duct 8. The 3eparati~g layer~ howe~er are wider than the refrigerant dUcr.
The connecting ~urfaces ~7 between the oute~-wall ~heet 15 and the outer metal sheet 6 are manufactured in ~ne pa~s wit~ the with the roll-~elding of inner and outer metal sheet 5, 6.
The in~rention relate~ to an evaporator which enclose~ a xefrige~ating c~amber o~ a compres6~r-t~pe refrigeratlon unit opcrated wich ~ydrocarbon6 a~ refrigerant and which i9 enclosed on the out~ide by a heat in~ulating layer and is pro~rided between two me~al sheets of the e~aporator ~all, i . e . an inner and an outer metal ~heet, with a meander-shaped refrigerant du~t with a refrigerant inlet and a re~rigexant outlet, wi~h the two metal sheet~ mutually ha~ing a f ixed metallic connection in fonn of welding or ~olderi~g next to and bet~ee~ the refrigerant duct seg~ents, with an additional innex-wall ~heet being pro~rided on the re~rigera~t chamber side ~hich forms the in~e~- wall of the evaporator wall o~ the refrigeran~
char,~er, which i8 pro~ided ~ith a metal su~ace ~t~çt wi~h the inner metal ~heet and which wi~hin the ~urface con~act zone between the inner-wall shee~ and the inner metal ~heet is pro~ided with connecting ~ur~ace~ of th~
welded or soldered type.
~n e~aporator equlpped with the aforemen~ione~ fea~res is ~no.nl. from DE-A-l 426 923. This known e~aporator, howe;er, is ~ot pro~ided ~ith any addi~ional protectlon agai~-st lea-:age~ . With respect to heat PYch~ngers~ in partlc-~lar ~uch o~ the "roll ~o~; ngl~ type, additional plate~ ~o:~ rhe protec~ion again~t leakages were kno~n (~S-A-4 678 027 and EP-~-0 206 416).
In order to form a refrige~ating cham~er, evaporators ar~
regularly shaped from respecti~e plane evaporaror bl~.~k~
~hich - ~en ~haped - fonm ac least the ~our wall~ o~ the rerigerating ~mhe~, e.g. a ~reezer ~t~on, and freguently also the rear wall. Such evaporator blank~ and their production according to the ~o-called roll-bo~ g ;
~ethod are ~hown in D~-C 1 552 044 by way o~ example.
Dur~ng ~he roll-bonding proce6~, where the two layers of the blank are mutually joined by r~ welding with the ~tretchlng of the s~bst~ate, preci~ely delimited areas which form the uture cource o~ the re~rigerant duct are en~ured by separating layer~ ~ade ~rom weld-ob~tructing material. This measure is de~cribed by way of exa~ple in DE-C 1 920 424.
Tn the past only hydrocarbon was u~ed as a refri~erant (CFCs), wherea~ newer refrigeratin~ ~ystem~ use hydrocarbon~ Fuch as isobutane, i~opropane or propane-butane. The6e hydrocarbon~ form an inflammable mixture with air, so that increasingly ex~?lo~io~-protected elect~ical de~ice~ are used in the zone o~ the refrigerating ~h~
ae a preca~tionary mea~ure. In addi~ion, ~ n~ ar~ made ~or additional measures to pre~ent refrigerant leakage6, in partlcula~ towarda the re~rigerating r~mh~
It i~ the ob;ect in accordance with the invention to provide an e~aporator of the kind mentioned abo~e ln such a way that the danger of a refrlgerant leaka~e w~thout any sub3tantial lo~s in the refrigerating ou~put o~ the evaporator i~ reduced.
It i~ therefore p~oposed in accordance with the invention that between ad~ acent connecting surfaces there are t~in separating layers between the inner-~all ~heet and the inn&X ~etal cheet which ha~e a m~ shaped course which 1~ adapted ro the ~n~ r-sh~ couree o~ the refrigerant duc~, ~ut a~e each wider t~an the re~rigerant duct.
Reference i~ hereby made eo embodiments of the invention pursuant to ~he subclalms. Thu~ a ~lrst em~o~;mont pro~ide~
that the connect~g sur~ace~ between the inner-wall ~heet and the inner meeal ~hee~ are li~lted to se~ip-like or 3 2~ 76705 in~ular ~urface segments w~ic~ are dlstr~buted o~r the evaporator wall.
F~rther e~bodiments of the l~vent~on al~o provlde additional oecurity on the out~ide in Buch a way that on the slde of the insulating layer there is pro~iaed an additional outer-~rall sheet which forrns the ou~er wall of the e~aporator wall and has metallic surface contact wich the outer ~etal s~eet, ~nd that within the s~r~ace contact zone between the outer-wall ~heet a~d the outer metal sh~et there are connecting 8urfa~e6 of the soldered or welaed t~p~. Between adjacen~ outer connecting 6urfaces there are pro~ided thin oute~ separatlng layers betwee~ the oute~-~all 6heet and the outer metal ~heet which ha~e a meander-~haped cour~e adapted to the meAn~er-~haped cour3e of the re~rigerant d~ct, ~ut are each wider than said ~e~rige~ant duct.
~ Sl~ilaz to the inner protection it i~ proYided advantageou~ly in this respect that the outex connecti~g ~ur~ace~ between the outer-wall sheet and the outer metal sheet are limi~ed to strip~ e or insular surface ~egme~ts ~hich are distributed o~r the ~a~otator wall.
~n an e~aporator where the fixed metallic co~nec~ion between the inner metal sheet and the outer metal sheet i~
manu~actured by welding under application of roll-weldlng according to the roll _h~Ai ~ method and the refrigerant duct i~ manufactured by infla~ing non-welded zoneQ prior to the ~haping of ~he eva~o~dtor~ the CQ~e~ting s~rfaces between the inner wall and the lnner ~etal sheet or ~e~een the o~t~r wall and the outer metal sheet are produced in one pa~s with the roll-~elding of in~er and outer ~et~l sheet.
The object ~s achieved by the in~ention in a simple way.
~xcept ~or the use of further ~heet~ for th~ inner-wall ~ sheet and, optionally, the outer-wall shee~c the invention doe~ not rec~uire any ~dditional manufacturing wor~c, because t~e welding of the three or four laye~, for example, car~
~e carried out according to the roll-horl~i ng met:hod in one paE3~ and with the exi~ting eq~ipment.
The in~rention i~ now explained below by ref erence to the embo~;ment~ shown in the Pigures, which ~how in a ~chematic representation a3 ~ollow~3:
Fig 1 an evapora~or of a co~pressor-ty~e refrigeration Unit:
Fig. 2 a ~;ectional view of an evaporator ~all;
Fig . ~ a top view o~ an evaporator wall i Fig. 4 a gec'clonal view o~ a~ e~d~o~ c.tor wall in a perepecti~re ~iew.
Fig. 1 show~ an evaporator 1 wi~ h the ~our evaporator walle 2 which are formed from a respecti~rely large e~raporato~
~lank by the ben~in~ thereo~. The ev~poL~tor is enclosed on the outside by a heat insulating layer 3 which is only showr~ in a sectional view, The re~rigerating ch~rnhe~ 4 iB
limited at t~e rear regmlarly }~y a rear wall ~not designated in cloeer detail).
The evaporator wall 2 is shown in a pa~tly sectional ~iew, with its ar~angement ~eing more clearly visible in ~ig. 2.
I t con~ists of an inner metal ~heet 5 and an outer ~etal sheet 6 and an inner-wall ~heet 7. 'rhe re~igerant duct ~
i6 located beeween the inner metal sheet 5 and the outer metal ~heet 6. The re~rigeran~ duct ~ 1~ p~o~ide~ with a re~igerant inlet 9 and a refrigerant ou~let 10, a~ i6 sho~ in Fig. 1.
~ig~ 2 6how~ moreo~er that ~he inner metal sheet 5 iB
pro~ided with a ~ixed metallic connectio~ 11 ~ith the outer metal aheet 6 on either side of the refrigerant duct ~, ~hich has the form of a welding here. For the sake o~
improved clarity it ii outlined o~erproportionally. In the refrigerant duct ~er ~e the aeparating central layer 12 i~
al90 Bhown overp~o~ ionally, which layer enabled the inflation o~ the ~efrigerant duct 8.
~etween the inner me~cal ~he~t 5 ar~d the inner-wall ~heet 7 there are o~erproportlonally repreeented connectlng surfaces 13, 13a, which ar~ of the welded type ~ere. ~ thl~
separating layer 14 i~ provided between the connecting our~acee 13 and 13a.
Fig. 3 shows an e~apo~a~or wall 2 in the wall arrangement pursuant to Fig. 2 without the insulating la~er, as seen ~rom t~e outside. The u~broken d~l m~ tin~ lines o~ she refrigerant duct 8, which has a substanclally ~n~
Ghaped course, project ae relie like ~he circular and o~al ~olid metal connections 11 in a ~idened re~e.ring zone. A~
i~ de~ignated by the dot-dash lineb, the re~rigerant duct ~r~nrhes numerously therein.
A pair o~ broken linei Pn~r~Qs~ the respec~i~ely ~ering separating layer 1~. It can be ~een that the ~eparating layer 14 is wider than the refr~gerant duc~ 8 ~ig. 4 6ho~6 a perspective and sectlonal vie~ ~f a separating wall 2 which con~ist~ o~ rhe inner-wall sheet 7, the inner metal sheet 5, the ou~er metal 6~eet 6 and the ou~er-wa~l ~heet 15.
In ~uch an ~vaporator wall 2 the inner-wall shee~ 7 and the outer-~all sheet 15 cou}d be made of alumlnium ~Al 99.5) and each ha~e a thick~ess of approx. 0.6 m~.
6 21 767~5 The lnner-~all sheet S i6 made f~om zirconium-containing aluminium ~AlZr) and ha~ a thick~e~s of O.2 and O.6 ~m. The outer-wall ~heet 6, with a ~hickne~ of O.5 ~m, i~ again ~ade ~rom AluminiU~ (Al 99.5)~ ~etween adjacent outer connecting ~ur~aces 17 ~etween the outer-wall ~heet 15 and the outer metal sheet 6 there are provided thin outer separating layers 16 which also have a mea~der-~haped course adapted to the meander~Fh~re~ ~our~e o~ the refrigerant duct 8. The 3eparati~g layer~ howe~er are wider than the refrigerant dUcr.
The connecting ~urfaces ~7 between the oute~-wall ~heet 15 and the outer metal sheet 6 are manufactured in ~ne pa~s wit~ the with the roll-~elding of inner and outer metal sheet 5, 6.
Claims (6)
1. An evaporator which encloses a refrigerating chamber (4) of a compressor-typerefrigeration unit operated with hydrocarbons and is enclosed on the outside by a heat insulating layer (3) and is provided with a meander-shaped refrigerantduct (8) with a refrigerant inlet (9) and a refrigerant outlet (10) between two metal sheets of the evaporator wall, i.e. an inner and an outer metal sheet (5 and 6), with the two metal sheets (5, 6) mutually having a fixed metallic connection (11) in form of welding or soldering next to and between the refrigerant duct segments, with an additional inner-wall sheet (7) being provided on the refrigerating chamber side which forms the inner wall of the evaporator wall of the refrigerating chamber, which is provided with a metal surface contact with the inner metal sheet and which within the surface contact zone between the inner-wall sheet (7) and the inner metal sheet (5) is provided with connecting surfaces (13, 13a) of the welded or soldered type, characterized in that between adjacent connecting surfaces (13, 13a) there are thin separating layers (14) between the inner-wall sheet (7) and the inner metalsheet (5) which have a meander-shaped course which is adapted to the meander-shaped course of the refrigerant duct (8), but are each wider than the refrigerant duct (8).
2. An evaporator as claimed in claim 1, characterized in that the connecting surfaces (13) between the inner-wall sheet (7) and the inner metal sheet (5) arelimited to strip-like or insular surface segments which are distributed over theevaporator wall.
3. An evaporator as claimed in one of the claims 1 or 2, characterized in that on the insulating layer side there is provided an additional outer-wall sheet (15) which forms the outer wall of the evaporator wall and has metallic surface contact with the outer metal sheet (6) and in which within the surface contact zone between the outer-wall sheet (15) and the outer metal sheet (6) there are provided connecting surfaces (17) of the welder or soldered type, characterized in that between adjacent outer connecting surfaces (17) there are provided thin outer separating layers (16) between the outer-wall sheet (15) and the outer metal sheet (6) which have a meander-shaped course adapted to the meander-shaped course of the refrigerant duct (8), but are each wider than said refrigerant duct (8).
4. An evaporator as claimed in claim 3, characterized in that the outer connecting surfaces (17) between the outer-wall sheet (15) and the outer metal sheet (6) are limited to strip-like or insular surface segments which are distributed overthe evaporator wall (2).
5. An evaporator as claimed in one of the claims 1 or 2, in which the fixed metallic connection between the inner metal sheet (5) and the outer metal sheet (6) is manufactured by welding under application of roll-welding according to the roll-bonding method and the refrigerant duct (8) is manufactured by inflating non-welded zones prior to the shaping of the evaporator, characterized in that the connecting surfaces (13, 13a) between the inner-wall sheet (7) and the inner metal sheet (5) are produced in one pass with the roll-welding of inner metal sheet (5) and outer metal sheet (6).
6. An evaporator as claimed in claim 5, characterized in that the connecting surfaces (17) between the outer-wall sheet (15) and the outer metal sheet (6) are produced in one pass with the roll-welding of inner and outer metal sheet (5 and 6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4338895.7 | 1993-11-15 | ||
| DE4338895A DE4338895A1 (en) | 1993-11-15 | 1993-11-15 | Evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2176705A1 true CA2176705A1 (en) | 1995-05-26 |
Family
ID=6502585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002176705A Abandoned CA2176705A1 (en) | 1993-11-15 | 1994-10-25 | Evaporator |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0728282A1 (en) |
| JP (1) | JP2689996B2 (en) |
| KR (1) | KR960706055A (en) |
| CN (1) | CN1145663A (en) |
| AU (1) | AU8060194A (en) |
| BG (1) | BG100591A (en) |
| BR (1) | BR9408060A (en) |
| CA (1) | CA2176705A1 (en) |
| CZ (1) | CZ143396A3 (en) |
| DE (2) | DE4338895A1 (en) |
| FI (1) | FI963007A (en) |
| PL (1) | PL314489A1 (en) |
| SK (1) | SK65296A3 (en) |
| WO (1) | WO1995014197A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4439996C5 (en) * | 1994-11-09 | 2006-08-10 | BSH Bosch und Siemens Hausgeräte GmbH | The refrigerator |
| SE506059C2 (en) * | 1996-02-28 | 1997-11-03 | Electrolux Ab | Device at a vaporizer |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2481512A (en) * | 1945-07-21 | 1949-09-13 | Yoder Co | Evaporator structure |
| US3036369A (en) * | 1955-06-29 | 1962-05-29 | Revere Copper & Brass Inc | Method of making fluid conducting elements |
| US2999305A (en) * | 1955-12-27 | 1961-09-12 | Reynolds Metals Co | Spiral heat exchanger |
| US2859509A (en) * | 1956-02-24 | 1958-11-11 | Olin Mathieson | Fabrication of hollow articles |
| US2992545A (en) * | 1959-05-27 | 1961-07-18 | Gen Motors Corp | Refrigerating apparatus |
| DE1426923A1 (en) * | 1962-12-04 | 1969-03-13 | Electrolux Ab | Evaporator for refrigerators |
| US3435504A (en) * | 1965-12-15 | 1969-04-01 | Texas Instruments Inc | Method of making tube-in-sheet metal products |
| US4484623A (en) * | 1983-04-08 | 1984-11-27 | Paul Mueller Company | Dual flow condenser with through connections |
| US4678027A (en) * | 1984-12-14 | 1987-07-07 | Paul Mueller Company | Dual-walled coiled plate heat exchanger with vented interface |
| EP0206416A3 (en) * | 1985-06-17 | 1987-09-02 | Paul Mueller Company | Plate-type heat exchange unit and method of forming same |
| US5070607A (en) * | 1989-08-25 | 1991-12-10 | Rolls-Royce Plc | Heat exchange and methods of manufacture thereof |
-
1993
- 1993-11-15 DE DE4338895A patent/DE4338895A1/en not_active Withdrawn
-
1994
- 1994-03-31 DE DE9405447U patent/DE9405447U1/en not_active Expired - Lifetime
- 1994-10-25 BR BR9408060A patent/BR9408060A/en not_active Application Discontinuation
- 1994-10-25 AU AU80601/94A patent/AU8060194A/en not_active Abandoned
- 1994-10-25 CN CN94194514A patent/CN1145663A/en not_active Withdrawn
- 1994-10-25 WO PCT/EP1994/003503 patent/WO1995014197A1/en not_active Application Discontinuation
- 1994-10-25 EP EP94931549A patent/EP0728282A1/en not_active Ceased
- 1994-10-25 PL PL94314489A patent/PL314489A1/en unknown
- 1994-10-25 CZ CZ961433A patent/CZ143396A3/en unknown
- 1994-10-25 CA CA002176705A patent/CA2176705A1/en not_active Abandoned
- 1994-10-25 SK SK652-96A patent/SK65296A3/en unknown
- 1994-10-25 KR KR1019960702575A patent/KR960706055A/en not_active Application Discontinuation
- 1994-10-25 JP JP7514177A patent/JP2689996B2/en not_active Expired - Lifetime
-
1996
- 1996-05-14 BG BG100591A patent/BG100591A/en unknown
- 1996-07-29 FI FI963007A patent/FI963007A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CZ143396A3 (en) | 1996-12-11 |
| JP2689996B2 (en) | 1997-12-10 |
| FI963007A0 (en) | 1996-07-29 |
| CN1145663A (en) | 1997-03-19 |
| JPH09504360A (en) | 1997-04-28 |
| EP0728282A1 (en) | 1996-08-28 |
| FI963007A (en) | 1996-07-29 |
| BG100591A (en) | 1996-12-31 |
| BR9408060A (en) | 1996-12-24 |
| DE9405447U1 (en) | 1994-06-30 |
| WO1995014197A1 (en) | 1995-05-26 |
| PL314489A1 (en) | 1996-09-16 |
| DE4338895A1 (en) | 1995-05-18 |
| AU8060194A (en) | 1995-06-06 |
| KR960706055A (en) | 1996-11-08 |
| SK65296A3 (en) | 1998-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2219646A1 (en) | Falling film evaporator with vapor-liquid separator | |
| JP2863481B2 (en) | Heat exchanger for compressed air dehumidification | |
| CA2026563A1 (en) | Recovery system for differing refrigerants | |
| CA2277730A1 (en) | Hot gas defrost refrigeration system | |
| AU729547B2 (en) | Method of liquefying a natural gas with two interconnected stages | |
| WO2000019551A3 (en) | Internal self heat piping amtec cell | |
| US5701758A (en) | Refrigeration system accumulating vessel having a brazed, metal-clad deflector | |
| AU703255B2 (en) | Fluid circulation apparatus | |
| CA2176705A1 (en) | Evaporator | |
| US4379390A (en) | Ice-making evaporator | |
| CN107772919A (en) | A kind of cold and hot showcase | |
| JPS61119964A (en) | Control circuit for cooling loop of drink vending machine | |
| WO2000014458A3 (en) | Absorption refrigeration machine | |
| US2481512A (en) | Evaporator structure | |
| US2315356A (en) | Refrigeration | |
| JPS62169883U (en) | ||
| US2023201A (en) | Evaporator for refrigerators | |
| KR100231642B1 (en) | Roll bond type evaporator of a cooling system | |
| CN208176423U (en) | A kind of cold and hot showcase | |
| US2900807A (en) | Defrostable evaporator structure | |
| US2143976A (en) | Evaporator for use in refrigeration devices | |
| US2109199A (en) | Refrigerating apparatus | |
| US2806359A (en) | Refrigerating apparatus | |
| JP2017093934A (en) | Method for removing carbon monoxide | |
| JPH0446667U (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |