DE3235561A1 - WORKING MATERIAL PAIR FOR USE IN SORPTION REFRIGERATORS, CONTAINING TRIFLUORETHANOL - Google Patents
WORKING MATERIAL PAIR FOR USE IN SORPTION REFRIGERATORS, CONTAINING TRIFLUORETHANOLInfo
- Publication number
- DE3235561A1 DE3235561A1 DE19823235561 DE3235561A DE3235561A1 DE 3235561 A1 DE3235561 A1 DE 3235561A1 DE 19823235561 DE19823235561 DE 19823235561 DE 3235561 A DE3235561 A DE 3235561A DE 3235561 A1 DE3235561 A1 DE 3235561A1
- Authority
- DE
- Germany
- Prior art keywords
- diethyl
- dibutyl
- dipropyl
- refrigerant
- sorption
- 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.)
- Withdrawn
Links
- RHQDFWAXVIIEBN-UHFFFAOYSA-N Trifluoroethanol Chemical compound OCC(F)(F)F RHQDFWAXVIIEBN-UHFFFAOYSA-N 0.000 title claims abstract description 5
- 238000001179 sorption measurement Methods 0.000 title claims description 6
- 239000008207 working material Substances 0.000 title claims description 4
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 claims abstract description 6
- RERATEUBWLKDFE-UHFFFAOYSA-N 1-methoxy-2-[2-(2-methoxypropoxy)propoxy]propane Chemical compound COCC(C)OCC(C)OCC(C)OC RERATEUBWLKDFE-UHFFFAOYSA-N 0.000 claims abstract description 3
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 claims abstract description 3
- CMJLMPKFQPJDKP-UHFFFAOYSA-N 3-methylthiolane 1,1-dioxide Chemical compound CC1CCS(=O)(=O)C1 CMJLMPKFQPJDKP-UHFFFAOYSA-N 0.000 claims abstract description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 3
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims abstract description 3
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000003507 refrigerant Substances 0.000 claims description 19
- 239000002594 sorbent Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 8
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical group CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- SESFRYSPDFLNCH-UHFFFAOYSA-N benzyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCC1=CC=CC=C1 SESFRYSPDFLNCH-UHFFFAOYSA-N 0.000 claims description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 4
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 claims description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 2
- LOWMYOWHQMKBTM-UHFFFAOYSA-N 1-butylsulfinylbutane Chemical compound CCCCS(=O)CCCC LOWMYOWHQMKBTM-UHFFFAOYSA-N 0.000 claims description 2
- CRWNQZTZTZWPOF-UHFFFAOYSA-N 2-methyl-4-phenylpyridine Chemical compound C1=NC(C)=CC(C=2C=CC=CC=2)=C1 CRWNQZTZTZWPOF-UHFFFAOYSA-N 0.000 claims description 2
- YUXIBTJKHLUKBD-UHFFFAOYSA-N Dibutyl succinate Chemical compound CCCCOC(=O)CCC(=O)OCCCC YUXIBTJKHLUKBD-UHFFFAOYSA-N 0.000 claims description 2
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- XSIFPSYPOVKYCO-UHFFFAOYSA-N benzoic acid butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1 XSIFPSYPOVKYCO-UHFFFAOYSA-N 0.000 claims description 2
- 229960002903 benzyl benzoate Drugs 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 229960002097 dibutylsuccinate Drugs 0.000 claims description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- KSCKTBJJRVPGKM-UHFFFAOYSA-N octan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCCCCCC[O-].CCCCCCCC[O-].CCCCCCCC[O-].CCCCCCCC[O-] KSCKTBJJRVPGKM-UHFFFAOYSA-N 0.000 claims description 2
- 229920000166 polytrimethylene carbonate Polymers 0.000 claims description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical group OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 2
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 claims 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims 1
- FLKPEMZONWLCSK-UHFFFAOYSA-N phthalic acid di-n-ethyl ester Natural products CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 claims 1
- MQHNKCZKNAJROC-UHFFFAOYSA-N phthalic acid dipropyl ester Natural products CCCOC(=O)C1=CC=CC=C1C(=O)OCCC MQHNKCZKNAJROC-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- -1 ethylene- Chemical class 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
- C09K5/047—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for absorption-type refrigeration systems
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
Beschreibung description
Die Erfindung betrifft Arbeitsstoffpaare zur Verwendung in Sorptionskältemaschinen, enthaltend 2,2, 2-Trifluorethanol als Kältemittel.The invention relates to pairs of working substances for use in sorption refrigeration machines, containing 2,2,2-trifluoroethanol as a refrigerant.
Bei Sorptionskühlmaschinen bzw. -warmepumpen wird in einem geschlossenen System ein Arbeitsstoffpaar, bestehend aus einem Kältemittel und einem Absorptionsmittel, verwendet, wobei das Absorptionsmittel häufig aus einer hochsiedenden Flüssigkeit besteht. Die Kühlung wird durch Verdampfung des Kältemittels in einer Verdampfereinrichtung oder dergleichen erreicht, wobei an der Verdampfereinrichtung ein Strömungsmittel abgekühlt wird, das an das Kältemittel Verdampfungswärme liefert. Das verdampfte Kältemittel wird in einem Absorberteil in dem an Kältemittel armen Absorptionsmittel absorbiert. Die bei der Absorption gebildete Wärme wird an ein externes Kühlmittel abgegeben. Die an Kältemittel reiche Lösung wird zu einem Austreiberteil (Kocherteil) geführt, wo man die Lösung zum Austreiben des Kältemittels erwärmt.Sorption cooling machines or heat pumps are used in a closed System a pair of working materials, consisting of a refrigerant and an absorbent, used, the absorbent often consisting of a high-boiling liquid consists. The cooling is achieved by evaporation of the refrigerant in an evaporator device or the like, with a fluid at the evaporator device is cooled, which supplies heat of vaporization to the refrigerant. That evaporated Refrigerant is in an absorber part in the absorbent poor in refrigerant absorbed. The heat generated during absorption is transferred to an external coolant submitted. The refrigerant-rich solution becomes an expeller part (cooker part) led, where the solution is heated to drive off the refrigerant.
Die erhaltene, an Kältemittel arme Lösung, die noch wenig Kältemittel enthält, wird zum Absorberteil zurückgeführt.The solution obtained, low in refrigerant, which is still low in refrigerant contains, is returned to the absorber part.
Das ausgetriebene dampfförmige Kältemittel wird durch Wärmeaustausch mit einem externen Kühlmittel verflüssigt und dann erneut dem Verdampferteil zugeführt.The expelled vaporous refrigerant is through heat exchange liquefied with an external coolant and then fed back to the evaporator section.
Arbeitsstoffpaare für die Verwendung in Sorptionskältemaschinen sollen insbesondere die folgenden Anforderungen erfüllen: a) Eine möglichst große Differenz der Siedetemperaturen zwischen dem Kältemittel und der Mischung aus Kälte-und Sorptionsmittel, b) ein flüssiger Aggregatzustand der Mischung aus Kälte-und Sorptionsmittel im Arbeitsbereich, c) thermische Stabilität der Mischung aus Kälte- und Sorptionsmittel, d) ein geringer Rektfikationsaufwand für das Gemisch aus Kälte- und Sorptionsmittel, e) eine geringe Viskosität des Gemisches aus Kälte- und Sorptionsmittel im Arbeitsbereich. sowie f) eine hohe Austreibertemperatur der Mischung aus Kälte-und Sorptionsmittel, wenn ein hohes Nutztemperaturniveau gewünscht wird.Working substance pairs for use in sorption chillers are intended in particular meet the following requirements: a) One if possible large difference in boiling temperatures between the refrigerant and the mixture of refrigerants and sorbents, b) a liquid state of aggregation of the mixture Refrigerants and sorbents in the work area, c) thermal stability of the mixture from refrigerants and sorbents, d) a low rectification effort for the mixture of refrigerants and sorbents, e) a low viscosity of the mixture of refrigerants and sorbents in the work area. and f) a high expeller temperature Mixture of refrigerant and sorbent, if a high useful temperature level is required will.
Aufgabe der Erfindung ist die Zurverfügungstellung von Arbeitsstoffpaaren der eingangs genannten Art, die die oben genannten Anforderungen erfüllen.The object of the invention is to provide pairs of working materials of the type mentioned above, which meet the above requirements.
Die Arbeitsstoffpaare der Erfindung enthalten als Sorptionsmittel Benzylalkohol, Ethylen-, Diethylen-, Triethylen-und/oder Tetraethylenglykol, Triethylen- und/oder Tetraethylenglykoldimethylether, Diethylenglykoldibutylether, 1, 3-Propandiol, 1 , 4-Butandiol, 1 5-Pentandiol, Mono-, Di- und/oder Tripropylenglykol, Di- und/oder Tripropylenglykoldimethylether, Diethyl-, Dipropyl- undZoder Dibutylphthalat, Benzoesäurebutyl- und/oder-benzylester, Diethyl-, Dipropyl- und/oder Dibutylsuccinat, Sebacinsäurediethylester, Propylencarbonat, Dimethyl-, Diethyl-, Dipropyl- und/oder Dibutylsulfoxid, Sulfolan undfoder 3-Methyl-sulfolan, Phosphorsäuretriethyl- , -tripropyl- und/oder-tributylester, Di- -und/oder Triethanolamin und/oder N-Methylddethanolamin sowie gegebenenfalls übliche Additive wie Korrosionsinhibitoren, Stabilisatoren und/oder Tenside, Bevorzugt sind Arbeitsstoffpaare, die das Sorptionsmittel in einer Menge von 50 - 95 Gew-%, bezogen auf das Gesamtgewicht des Arbeitsstoffpaares, enthalten.The working substance pairs of the invention contain as sorbents Benzyl alcohol, ethylene, diethylene, triethylene and / or tetraethylene glycol, triethylene and / or tetraethylene glycol dimethyl ether, diethylene glycol dibutyl ether, 1,3-propanediol, 1, 4-butanediol, 15-pentanediol, mono-, di- and / or tripropylene glycol, di- and / or Tripropylene glycol dimethyl ether, Diethyl, dipropyl and Z or dibutyl phthalate, Butyl and / or benzyl benzoate, diethyl, dipropyl and / or dibutyl succinate, Diethyl sebacate, propylene carbonate, dimethyl, diethyl, dipropyl and / or Dibutyl sulfoxide, sulfolane andfor 3-methyl-sulfolane, phosphoric acid triethyl-, -tripropyl- and / or tributyl ester, di- and / or triethanolamine and / or N-methylddethanolamine and, if appropriate, customary additives such as corrosion inhibitors, stabilizers and / or surfactants, preferred are pairs of working substances that contain the sorbent in one Contains an amount of 50 - 95% by weight, based on the total weight of the working substance pair.
Claims (2)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823235561 DE3235561A1 (en) | 1982-09-25 | 1982-09-25 | WORKING MATERIAL PAIR FOR USE IN SORPTION REFRIGERATORS, CONTAINING TRIFLUORETHANOL |
| EP19830903002 EP0120048A1 (en) | 1982-09-25 | 1983-09-21 | Fluids for use in sorption refrigerators and heat pumps |
| JP58503057A JPS59501632A (en) | 1982-09-25 | 1983-09-21 | Fluids used in absorption refrigerators and heat pumps |
| PCT/GB1983/000231 WO1984001165A1 (en) | 1982-09-25 | 1983-09-21 | Fluids for use in sorption refrigerators and heat pumps |
| DK2594/84A DK259484D0 (en) | 1982-09-25 | 1984-05-25 | LIQUIDS FOR USE IN SORPTION COOLERS AND HEAT PUMPS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823235561 DE3235561A1 (en) | 1982-09-25 | 1982-09-25 | WORKING MATERIAL PAIR FOR USE IN SORPTION REFRIGERATORS, CONTAINING TRIFLUORETHANOL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3235561A1 true DE3235561A1 (en) | 1984-03-29 |
Family
ID=6174155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19823235561 Withdrawn DE3235561A1 (en) | 1982-09-25 | 1982-09-25 | WORKING MATERIAL PAIR FOR USE IN SORPTION REFRIGERATORS, CONTAINING TRIFLUORETHANOL |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0120048A1 (en) |
| JP (1) | JPS59501632A (en) |
| DE (1) | DE3235561A1 (en) |
| DK (1) | DK259484D0 (en) |
| WO (1) | WO1984001165A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3418705A1 (en) * | 1984-05-19 | 1985-12-12 | GEA Luftkühlergesellschaft Happel GmbH & Co, 4630 Bochum | Systems of materials for sorption processes |
| DE3514108A1 (en) * | 1985-04-19 | 1986-10-23 | Dieter Dipl.-Ing. 7024 Filderstadt Seher | Multi-component mixtures for sorption heat pumps, sorption refrigerators and sorption heat transformers |
| WO1990005172A1 (en) * | 1988-11-11 | 1990-05-17 | Asahi Glass Company Ltd. | Tetrafluoroethane composition for a regrigerator |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4948525A (en) * | 1988-04-06 | 1990-08-14 | Nippon Oil Co., Ltd. | Lubricating oil compositions for refrigerators |
| US5543068A (en) * | 1988-04-08 | 1996-08-06 | Japan Energy Corporation | Lubricating oils for flon compressors, compositions adapted for flon compressors and composed of mixtures of said lubricating oils and flon, and process for lubricating flon compressor by using said lubricating oils |
| US6962665B2 (en) * | 2000-12-08 | 2005-11-08 | E. I. Du Pont De Nemours And Company | Refrigerant compositions containing a compatibilizer |
| US6991744B2 (en) | 2000-12-08 | 2006-01-31 | E. I. Du Pont De Nemours And Company | Refrigerant compositions containing a compatibilizer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2615443A1 (en) * | 1975-04-10 | 1976-10-21 | Allied Chem | PROCEDURE FOR ABSORPTION HEATING AND ABSORPTION PAIR FOR CARRYING OUT THE PROCEDURE |
| DE2832237A1 (en) * | 1977-07-22 | 1979-02-08 | Allied Chem | ABSORPTION PAIR FOR ABSORPTION HEATING PROCESS |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722211A (en) * | 1970-09-28 | 1973-03-27 | Halocarbon Prod Corp | Prime mover system utilizing trifluoroethanol as working fluid |
| JPS5679175A (en) * | 1979-11-30 | 1981-06-29 | Daikin Ind Ltd | Absorption refrigerant carrier composition |
| DE3003471C2 (en) * | 1980-01-31 | 1983-02-17 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Working substance pair for sorption heat pumps |
| JPS592477B2 (en) * | 1980-02-12 | 1984-01-18 | 三洋電機株式会社 | Absorption liquid for absorption refrigerators |
-
1982
- 1982-09-25 DE DE19823235561 patent/DE3235561A1/en not_active Withdrawn
-
1983
- 1983-09-21 WO PCT/GB1983/000231 patent/WO1984001165A1/en not_active Ceased
- 1983-09-21 JP JP58503057A patent/JPS59501632A/en active Pending
- 1983-09-21 EP EP19830903002 patent/EP0120048A1/en not_active Withdrawn
-
1984
- 1984-05-25 DK DK2594/84A patent/DK259484D0/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2615443A1 (en) * | 1975-04-10 | 1976-10-21 | Allied Chem | PROCEDURE FOR ABSORPTION HEATING AND ABSORPTION PAIR FOR CARRYING OUT THE PROCEDURE |
| DE2832237A1 (en) * | 1977-07-22 | 1979-02-08 | Allied Chem | ABSORPTION PAIR FOR ABSORPTION HEATING PROCESS |
Non-Patent Citations (2)
| Title |
|---|
| DE-Z: Klima-Kälte-Heizung, 1/1980, S.865-876 * |
| US-Z: Refrigerating Engineering, 8/1944, S.97-100 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3418705A1 (en) * | 1984-05-19 | 1985-12-12 | GEA Luftkühlergesellschaft Happel GmbH & Co, 4630 Bochum | Systems of materials for sorption processes |
| DE3514108A1 (en) * | 1985-04-19 | 1986-10-23 | Dieter Dipl.-Ing. 7024 Filderstadt Seher | Multi-component mixtures for sorption heat pumps, sorption refrigerators and sorption heat transformers |
| WO1990005172A1 (en) * | 1988-11-11 | 1990-05-17 | Asahi Glass Company Ltd. | Tetrafluoroethane composition for a regrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| DK259484A (en) | 1984-05-25 |
| DK259484D0 (en) | 1984-05-25 |
| EP0120048A1 (en) | 1984-10-03 |
| JPS59501632A (en) | 1984-09-13 |
| WO1984001165A1 (en) | 1984-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |