Patent application number | Description | Published |
20110084228 | HYDROFLUOROOLEFIN COMPOSITIONS - The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 2 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 2 to 55% by weight of HFC-152 | 04-14-2011 |
20110089366 | HYDROFLUOROOLEFIN COMPOSITIONS - The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 10 to 90% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 85% by weight of HFC-134a and 2 to 20% by weight of HFC-152a. | 04-21-2011 |
20110095224 | HYDROFLUOROOLEFIN COMPOSITIONS - The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 5 to 65% by weight, preferably from 5 to 15% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 70% by weight, preferably 40 to 60% by weight, of HFC-134a and 25 to 42% by weight of HFC-32. | 04-28-2011 |
20110186772 | HEAT TRANSFER FLUID - The present invention relates to compositions which are based on tetrafluoropropene and more particularly relates to compositions comprising 60% to 90% by weight of 2,3,3,3-tetrafluoropropene and 10% to 40% by weight of at least one compound selected from difluoroethane and difluoromethane, which can be used as a heat transfer fluid. | 08-04-2011 |
20110197602 | HEAT TRANSFER METHOD - The present invention relates to a method of heat transfer by means of a composition containing hydrochlorofluoroolefins. The subject matter of the present invention is more particularly a heat transfer method comprising, successively, a step of evaporation of a coolant fluid, a compression step, a step of condensation of said fluid at a temperature of greater than or equal to 70° C. and a step of expansion of said fluid, characterized in that that coolant fluid comprises at least one hydrochlorofluoroolefin. | 08-18-2011 |
20110219791 | COMPOSITION INCLUDING 2,3,3,3-TETRAFLUOROPROPENE, METHOD FOR HEATING AND/OR AIR CONDITIONING A VEHICLE - The present invention relates to a composition including 2,3,3,3-tetrafluoropropene, difluoromethane and at least one compound chosen among propane, propylene and ethylene, suitable for being used for refrigeration, air-conditioning and heating. The present invention also relates to a method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including said composition. Said method is particularly suitable when the outside temperature is lower than −20° C. The method is also suitable for hybrid automobiles, which are designed to operate in alternation between a heat engine and an electric engine, as well as for electric vehicles. | 09-15-2011 |
20110219792 | METHOD FOR HEATING AND/OR AIR CONDITIONING A VEHICLE - The present invention relates to method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including 2,3,3,30-tetrafluoropropane and at least one compound chosen from among propane, propylene and ethylene. Said method is particularly suitable when the outside temperature is lower than −20° C. The method is also suitable for hybrid automobiles, which are designed to operate in alternation between a heat engine and an electric engine, as well as for electric vehicles. The present invention also relates to a composition including 2,3,3,3-tetrafluoropropane and at least one compound chosen from among propylene and ethylene, suitable for being used for refrigeration, air conditioning and heating. | 09-15-2011 |
20110240254 | VEHICLE HEATING AND/OR AIR CONDITIONING METHOD - The invention relates to a method for the heating and/or air conditioning of the passenger compartment of an automobile using a reversible cooling loop in which flows a coolant containing 2,3,3,3-tetrafluoropropene. The method is particularly useful when outdoor temperature is lower than −15° C. The method can be used for hybrid automobiles designed for operating alternatively with a thermal engine and an electric motor. | 10-06-2011 |
20110284181 | METHOD FOR HEATING AND/OR AIR-CONDITIONING IN A VEHICLE - The present invention relates to a composition 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and at least one compound selected from propane, propylene and ethylene, which can be used for refrigeration, air-conditioning and heating. The invention also relates to a method for heating and/or air-conditioning the passenger compartment of an automobile using a reversible cooling loop in which a refrigerant fluid including said composition flows. The method is particularly suitable for when the outdoor temperature is lower than −20° C. The method is also suitable for use in hybrid vehicles adapted for alternately operating by means of a thermal engine and an electric motor, as well as for electric vehicles. | 11-24-2011 |
20110315915 | AZEOTROPE AND AZEOTROPE-LIKE COMPOSITIONS OF CHLOROTRIFLUOROPROPENE AND PENTANE - Provided are azeotrope or azeotrope-like compositions comprised of chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) and iso-pentane, n-pentane, cyclo-pentane and mixtures thereof, and uses thereof. | 12-29-2011 |
20120056123 | HYDROFLUOROOLEFIN COMPOSITIONS - The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 10 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 50% by weight of HFC-152a and 30 to 55% by weight of HFC-32. | 03-08-2012 |
20120068104 | COMPOSITION BASED ON 1,3,3,3-TETRAFLUOROPROPENE - The subject of the present application is a composition comprising a lubricant based on polyol esters (POEs) or PVE and a refrigerant F comprising from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze) and from 1 to 99% by weight of 1,1,1,3-tetrafluoroethane. The subject of the present application is also the use of said composition in refrigeration, air conditioning and heat pumps. | 03-22-2012 |
20120068105 | COMPOSTION BASED ON 2,3,3,3-TETRAFLUOROPROPENE - The subject of the present application is a composition comprising a lubricant based on polyol esters (POEs) or PVE and a refrigerant F comprising from 1 to 99% by weight of 2,3,3,3-tetrafluoropropene (HFO- | 03-22-2012 |
20120117990 | HEAT TRANSFER PROCESS - The present invention relates to a heat transfer process using a composition containing hydro(chloro)fluoroolefins. It more particularly relates to a heat transfer process that successively comprises a step of evaporation of a refrigerant; a step of compression, a step of condensation of said refrigerant at a temperature greater than or equal to 70° C. and a step of expansion of said refrigerant characterized in that the refrigerant comprises at least one hydrofluoroolefin having at least four carbon atoms represented by the formula (I) R | 05-17-2012 |
20120117991 | HEAT TRANSFER PROCESS - The present invention relates to the use of a refrigerant in organic Rankine cycle systems comprising at least one hydrofluoroolefin, having at least four carbon atoms represented by the formula (I) R | 05-17-2012 |
20120144857 | LOW-TEMPERATURE AND AVERAGE-TEMPERATURE REFRIGERATION - The invention relates to binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, as a heat transfer fluid in compression, low-temperature and average temperature refrigeration systems, with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. The invention also relates to a heat transfer method. | 06-14-2012 |
20120151958 | USE OF TERNARY COMPOSITIONS - The invention relates to the use of compositions essentially containing 2,3,3,3-tetrafluoropropene, HFC-134a and HFC-32 in compression refrigeration systems comprising exchangers operation in counterflow mode. | 06-21-2012 |
20120151959 | BINARY REFRIGERATING FLUID - The invention relates to binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, and especially to the uses thereof as a heat transfer fluid in compression systems with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. The invention also relates to a heat transfer method. | 06-21-2012 |
20120153213 | TERNARY COMPOSITIONS FOR HIGH-CAPACITY REFRIGERATION - The invention relates to compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. The invention specifically relates to compositions essentially containing between 15 and 50 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 40 wt. % of HFC-134a and between 45 and 60 wt. %, preferably between 45 and 50 wt. %, of HFC-32. | 06-21-2012 |
20120161064 | HEAT TRANSFER FLUID REPLACING R-410A - The invention relates to a heat transfer method using ternary composition containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, as a heat transfer fluid in refrigeration systems, to replace the R-410A mixture | 06-28-2012 |
20120167615 | HEAT TRANSFER METHOD - The invention relates to a heat transfer method using ternary compositions containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, said compositions being especially interesting as a heat transfer fluid in compression refrigeration systems comprising exchangers operation in counterflow mode or in split flow mode with counterflow tendency. | 07-05-2012 |
20120205574 | AZEOTROPE AND AZEOTROPE-LIKE COMPOSITION OF 2,3,3,3-TETRAFLUOROPROPENE AND AMMONIA - The present invention relates to azeotrope and azeotrope-like compositions comprised of 2,3,3,3-tetrafluoropropene (HFO-1234yf) and ammonia, and uses thereof. | 08-16-2012 |
20120255316 | HEAT-TRANSFER FLUIDS HAVING REDUCED FLAMMABILITY - The invention relates to a method for cooling or heating a fluid or a body by means of a vapour compression circuit containing a heat transfer fluid, said circuit being at least partially contained in an enclosure, and the relative humidity of the air in the enclosure being less than or equal to a threshold value H | 10-11-2012 |
20120324926 | REFRIGERANT FOR HIGH-TEMPERATURE HEAT TRANSFER - The invention relates to a method of heat transfer by means of a vapor compression circuit containing a heat transfer fluid, said method including, consecutively, evaporating the heat transfer fluid, compressing the heat transfer fluid, condensing the heat transfer fluid to a temperature greater than or equal to 70′ C., and decompressing the heat transfer fluid. In said method, the heat transfer fluid includes 1,1,1,3,3-pentafluorobutane and 1,1,1,3,3-pentafluoropropane, the compounding weight ratio of 1,1,1,3,3-pentafluorobutane in the fluid being no higher than 20%. The invention also relates to a heat transfer fluid suitable for implementing said method and to a facility that is also suitable for implementing said method. | 12-27-2012 |
20130055733 | HEAT-TRANSFER FLUIDS AND USE THEREOF IN COUNTERCURRENT HEAT EXCHANGERS - The invention relates to a ternary composition comprising difluoromethane, 3,3,3-trifluoropropene and a hydrocarbon-derived compound containing at least two fluorine atoms and having a boiling point of between −30 and −18° C., which is selected from 1,1-difluoroethane, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene. This composition is particularly suitable for use as a heat-transfer fund in the presence of countercurrent heat exchangers. | 03-07-2013 |
20130055738 | TERNARY HEAT-TRANSFER FLUIDS COMPRISING DIFLUOROMETHANE, PENTAFLUOROETHANE AND TETRAFLUOROPROPENE - The invention relates to a ternary composition comprising: from 5 to 50% of difluoromethane;—from 2 to 20% of pentafluoroethane; and—from 30 to 90% of tetrafluoropropeae. The tetrafluoropropeae may be 1,3,3,3-tetrafluoropropene or 2,3,3,3-tetrafluoropropene. This composition can he used as a heat-transfer fluid in vapor compression circuit. | 03-07-2013 |
20130055739 | HEAT-TRANSFER FLUIDS AND USE THEREOF IN COUNTERCURRENT HEAT EXCHANGERS - The invention relates to a ternary composition comprising difluoromethane, 1,3,3,3-tetrafluoropropene and a hydrocarbon-derived compound containing at least two fluorine atoms and having a boiling point of between −30 and −20° C., which is selected from 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene. This composition is particularly suitable for use as a heat-transfer fluid in the presence of countercurrent heat exchangers. | 03-07-2013 |
20130061613 | HEAT-TRANSFER FLUID FOR A CENTRIFUGAL COMPRESSOR - The invention relates to a process for cooling or heating a fluid or a body by means of a vapour compression circuit comprising a centrifugal compressor and containing a heat-transfer fluid, the heat-transfer fluid comprising at least two compounds selected from 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoropropene, 1,1-difluoroethane and 3,3,3-trifluoropropene, in which: the ratio of the Mach number of the centrifugal compressor to the Mach number which the centrifugal compressor has under the same operating conditions if the heat-transfer fluid is replaced with 1,1,1,2-tetrafluoroethane in the vapour compression circuit is greater than or equal to 0.97 and less than or equal to 1.03; the compression ratio of the centrifugal compressor is less than or equal to the compression ratio which the centrifugal compressor has under the same operating conditions if the heat-transfer fluid is replaced with 1,1,12-tetrafluorethane in the vapour compression circuit. The invention also relates to equipment suitable for implementing this cooling or heating process, and also to a process for converting existing equipment. | 03-14-2013 |
20130096218 | HEAT TRANSFER COMPOSITIONS OF HYDROFLUOROCARBONS AND A HYDROFLUOROOLEFIN - The present invention relates to heat transfer compositions comprising 2,3,3,3-tetrafluoropropene, difluoromethane, pentafluoroethane, and 1,1,1,2-tetrafluoroethane for use in refrigeration, air-conditioning, heat pump systems, and other heat transfer applications. The inventive heat transfer compositions can possess reduced global warming potential while providing good capacity and performance. | 04-18-2013 |
20130186114 | HEAT TRANSFER COMPOSITIONS OF IMPROVED MISCIBILITY WITH LUBRICANT OIL - The invention relates to a composition comprising:
| 07-25-2013 |
20130247602 | COMPOSITIONS CONTAINING 1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE AND 3,3,4,4,4-PETRAFLUOROBUT-1-ENE - The invention relates to a composition including 1,1,1,4,4,4-hexafluorobut-2-ene and 3,3,4,4,4-pentafluorobut-1-ene, as well as to use thereof, in particular as a heat transfer fluid. | 09-26-2013 |
20130255284 | REFRIGERANTS CONTAINING (E)-1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE - The invention relates to a composition comprising (E)-1,1,1,4,4,4-hexafluorobat-2-ene as a mixture with at least one hydrocarbon, hydrofinorocarbon or fluoroolefin compound having a boiling point less than or equal to 42° C., and also to the use of this composition as a heat transfer fluid. | 10-03-2013 |
20140008565 | BINARY COMPOSITIONS OF 2,3,3,3-TETRAFLUOROPROPENE AND OF AMMONIA - A binary composition of 2,3,3,3-tetrafluoropropene and of ammonia, and also to the use thereof, in particular as a heat transfer fluid. | 01-09-2014 |
20140024575 | COMPOSITIONS COMPRISING 3,3,3-TRIFLUOROPROPENE AND AMMONIA - A composition based on 3,3,3-trifluoropropene and ammonia, and to the use thereof, especially as a heat transfer fluid. A heat-transfer composition including the composition based on 3,3,3-trifluoropropene and ammonia and also one or more additives chosen from lubricants, stabilizers, surfactants, tracers, fluorescers, odorant agents and solubilizers, and mixtures thereof. A process for heating or cooling a fluid or a body by means of a vapor compression circuit containing a heat-transfer fluid, said process successively including evaporation of the heat-transfer fluid, compression of the heat-transfer fluid, condensation of the heat fluid and depressurization of the heat-transfer fluid, in which the heat-transfer fluid is a composition based on 3,3,3-trifluoropropene and ammonia. | 01-23-2014 |
20140048739 | COMPOSITIONS OF CHLORO-TRIFLUOROPROPENE AND HEXAFLUOROBUTENE - Provided are compositions, preferably azeotrope or azeotrope-like compositions comprised of 1,1,1,4,4,4-hexafluoro-2-butene and chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and uses thereof. | 02-20-2014 |
20140075969 | HEAT-TRANSFER COMPOSITIONS EXHIBITING IMPROVED MISCIBILITY WITH THE LUBRICATING OIL - The invention relates to the use of 1,1,1,2-tetrafluoroethane for increasing the miscibility of 2,3,3,3-tetrafluoropropene with a lubricating oil, and in particular with a polyalkylene glycol oil. In this regard, the invention provides heat-transfer compositions and also equipment and processes using these compositions. | 03-20-2014 |
20140083119 | COMPOSITIONS OF 2,4,4,4-TETRAFLUOROBUT-1-ENE AND CIS-1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE - A composition including 2,4,4,4-10-tetrafluorobut-1-ene and cis-1,1,1,4,4,4-hexafluorobut-2-ene, and also the use thereof in particular as a heat transfer fluid. The composition may include: from 1% to 99% of 2,4,4,4-tetrafluorobut-1-ene and from 1% to 99% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 5% to 70% of 2,4,4,4-tetrafluorobut-1-ene and from 30% to 95% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 20% to 65% of 2,4,4,4-tetrafluorobut-1-ene and from 35% to 80% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 25% to 60% of 2,4,4,4-tetrafluorobut-1-ene and from 40% to 75% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 28% to 51% of 2,4,4,4-tetrafluorobut-1-ene and from 49% to 72% of cis-1,1,1,4,4,4-hexafluorobut-2-ene. | 03-27-2014 |
20140110623 | BINARY COMPOSITIONS OF 1,3,3,3-TETRAFLUOROPROPENE AND AMMONIA - A binary composition of 1,3,3,3-tetrafluoropropene and ammonia, as well as to the use thereof, in particular as a heat-transfer fluid. The composition may include from 40% to 99% of ammonia and from 1% to 60% of 1,3,3,3-tetrafluoropropene; preferably from 60% to 98% of ammonia and from 2% to 40% of 1,3,3,3-tetrafluoropropene; preferably from 70% to 95% of ammonia and from 5% to 30% of 1,3,3,3-tetrafluoropropene; preferably from 75% to 90% of ammonia and from 10% to 25% of 1,3,3,3-tetrafluoropropene; preferably from 78% to 85% of ammonia and from 15% to 22% of 1,3,3,3-tetrafluoropropene. The 1,3,3,3-tetrafluoropropene may be in the cis form or in the trans form or is a mixture of cis form and trans form and in which, preferably, at least 80% or at least 90% or at least 95% or at least 98% or at least 99% of the 1,3,3,3-tetrafluoropropene is in the trans form. | 04-24-2014 |
20140318160 | USE OF TERNARY COMPOSITIONS - The use of a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane, as a heat-transfer fluid, in compression refrigeration systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency. A heat-transfer process in which a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane is used as a refrigerant in compression systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency. | 10-30-2014 |
20140326017 | TERNARY COMPOSITIONS FOR LOW-CAPACITY REFRIGERATION - Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions essentially containing between 10 and 90 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 80 wt. % of HFC-134 | 11-06-2014 |
20140352336 | CASCADE REFRIGERATION SYSTEM - A method for cooling a fluid or a body by means of at least a first vapour compression circuit containing a first heat transfer fluid and at least a second vapour compression circuit containing a second heat transfer fluid, the method including: measuring the temperature of the external surroundings; and setting the temperature of the second heat-transfer fluid to evaporation, according to the temperature of the external surroundings. Also, an installation suited to implementing this method. | 12-04-2014 |
20150052918 | COMPOSITIONS OF 2,4,4,4-TETRAFLUOROBUT-1-ENE AND 1-METHOXYHEPTAFLUOROPROPANE - The invention relates to the use of a composition comprising 2,4,4,4-tetra-fluoro-but-1-ene and 1-methoxyheptafluoropropane as a heat transfer fluid. The invention also relates to associated units, methods and compositions. | 02-26-2015 |