Refrigeration cycle device

The present invention makes it possible to obtain a refrigeration cycle device that uses HFO-1123, said device making it possible to suppress disproportionation reactions. This refrigeration cycle device 10 is provided with: refrigerant circuits 11a, 11b in which a high-pressure shell-type compressor 12, an exterior heat exchanger 14, an expansion valve 15, and an interior heat exchanger 16 are connected; a mixed refrigerant including 1,1,2-trifluoroethylene and another refrigerant apart from 1,1,2-trifluoroethylene, and circulating in the refrigerant circuits 11a, 11b; and a refrigerator oil 60 being adjusted such that 1,1,2-trifluoroethylene is more soluble therein than the other refrigerant, and being enclosed inside the refrigerant circuits 11a, 11b.

REFRIGERANT COMPOSITIONS CONTAINING A COMPATIBILIZER AND USE THEROF IN A COMPRESSION REFRIGERATION APPARATUS

The present invention provides compositions that are useful for compatibilizing a conventional, non-polar, compression refrigeration lubricant and a hydrofluorocarbon and/or hydrochlorofluorocarbon refrigerant in a compression refrigeration apparatus. Additionally, these compositions promote efficient return of lubricant from the non-compressor zones to the compressor zones of the aforesaid refrigeration apparatus.

COMPOSITIONS AND METHODS FOR REDUCING FIRE HAZARD OF FLAMMABLE REFRIGERANTS

The present invention relates to compositions comprising flammable refrigerant, fire hazard-reducing agent, and optionally a lubricant suitable for use in a refrigeration or air conditioning apparatus. Further, the present invention relates to compositions comprising lubricant and fire hazard- reducing agent and methods for reducing flammability of flammable refrigerant, for delivering a fire hazard-reducing agent to a refrigeration or air conditioning apparatus, and for replacing a non-flammable refrigerant with a flammable refrigerant.

HIGH VISCOSITY SYNTHETIC ESTER LUBRICANT BASE STOCK BLENDS

Cross blends of synthetic ester base stocks are produced from high viscosity synthetic ester base stocks having a viscosity from about iso 120 to 140 and conventional synthetic ester base stocks of varying viscosities to form base stocks having viscosities from about iso 68 to iso 220. Lubricants formed from the cross blends have sufficient miscibility with HFC refrigeration fluids with minimal use of i-C9 carboxylic acids to form the ester.

COMPOSITIONS COMPRISING A FLUOROOLEFIN

Working fluid composition for refrigerator

The use of the compressor and the compressor of the air conditioning equipment

Fluoro olefin refrigerant composition

COMPOSITION Containing 1,3,3,3-TETRAFLUOROPROPENE

La présente demande a pour objet une composition comprenant un lubrifiant à base d'esters de polyol ( POE) ou PVE et un fluide frigorigène F comprenant de 1 à 99 % en poids du trans-1,3,3,3-tetrafluoropropène (trans HFO-1234ze) et de 1 à 99 % en poids du 1,1,1,3-tetrafluoroéthane. Elle a également pour objet l'utilisation de ladite composition en réfrigération, climatisation et pompe à chaleur.

COMPOSITION Containing 2,3,3,3-TETRAFLUOROPROPENE

METHOD FOR HEATING AND/OR AIR CONDITIONING OF A VEHICLE

플루오르 치환된 올레핀을 함유한 조성물들

... 냉각 장비(refrigeration equipment)를 포함하는 다양한 적용처에 있어서, 테트라플루오로프로펜, 특히 (HFO-1234)의 다양한 용도가 개시되어 있다. 이러한 물질들은 일반적으로 가열 및 냉각용 냉매, 발포제, 에어로졸 추진제, 용매 조성물 및 소화 및 내화제로서 사용된다.

열 전달 조성물

... 열 전달 부분 및 윤활 부분을 포함하는 조성물로서, 여기서 윤활 부분은 1종 이상의 하기 화학식 (I)에 따른 화합물을 포함한다: 식 중, W는 독립적으로 H, F, Cl, Br 및 I로 이루어진 군으로부터 선택되고; Y는 독립적으로 F, Cl, Br 및 I로 이루어진 군으로부터 선택되며; Z는 독립적으로 H, OH, (CW2)pCW3, CY3, OCW3, O(CW2)pCW3, OCW((CY2)mCY3)CWCW2, 폴리알킬렌 글리콜 및 폴리올에스터로 이루어진 군으로부터 선택되고; n은 2 내지 250의 정수이며; m은 0 내지 3의 정수이고; 그리고 p는 0 내지 9의 정수이다.

REFRIGERATOR OIL COMPOSITION

REFRIGERATOR OIL COMPOSITION, AND REFRIGERATOR COMPRESSOR AND REFRIGERATION SYSTEM USING THE COMPOSITION

Disclosed are: a refrigerator oil composition comprising at least one base oil selected from a mineral oil and a synthetic oil and an imide compound in an amount of 0.01 to 5% by mass relative to the total amount of the refrigerator oil composition; and a compressor or refrigeration system using the composition. The composition can achieve both of sludge dispersibility and prevention of abrasion/seizing up of a sliding part made of aluminum and/or iron in a refrigerator compressor. © KIPO & WIPO 2008 ...

AIR CONDITIONER

REFRIGERATING-MACHINE OIL COMPOSITION, AND COMPRESSOR FOR REFRIGERATING MACHINE AND REFRIGERATING APPARATUS EACH EMPLOYING THE SAME

A refrigerating-machine oil composition which is satisfactory in both of sludge-dispersing properties and the prevention of wear and seizing on sliding parts made of aluminum and/or iron of a compressor for refrigerating machines. The refrigerating-machine oil composition is characterized by comprising a base oil which is at least one member selected among mineral oils and synthetic oils and, incorporated therein, at least one polyamide compound having two or more amide groups per molecule, the amount of the polyamide compound being 0.01-5 mass% based on the whole refrigerating-machine oil composition. © KIPO & WIPO 2008 ...

COMPOSITION FOR REFRIGERATING MACHINE

Disclosed is a composition for refrigerating machines which enables to improve compatibility between a refrigerating machine oil and a refrigerant and to increase the high-temperature separation temperature of the composition for refrigerating machines. Specifically disclosed is a composition for refrigerating machines which is composed of at least one refrigerating machine oil selected from terminally alkylated polyethers and terminally acylated polyethers having specific structures, and a mixed refrigerant of a hydrofluorocarbon and CF3I.

FREEZING DEVICE

Provided is a freezing device (20) including a compressor (30) and a coolant circuit (10) for circulating a coolant by the compressor (30) to perform a freezing cycle. The compressor (30) has a fluid machine (82) for compressing the coolant and a motor (85) for driving the fluid machine (82). The compressor (30) uses a freezer oil having a volume resistivity of 1010 Ω m or above at the temperature of 20 degrees C.

REFRIGERATING-MACHINE OIL COMPOSITION, AND COMPRESSOR FOR REFRIGERATING MACHINE AND REFRIGERATING APPARATUS EACH EMPLOYING THE SAME

A refrigerating-machine oil composition which is satisfactory in both of sludge-dispersing properties and the prevention of wear and seizing on sliding parts made of aluminum and/or iron of a compressor for refrigerating machines. The refrigerating-machine oil composition is characterized by comprising a base oil which is at least one member selected among mineral oils and synthetic oils and, incorporated therein, at least one polyamide compound having two or more amide groups per molecule, the amount of the polyamide compound being 0.01-5 mass% based on the whole refrigerating-machine oil composition.

Refrigerant compositions containing perfluoropolyethers

The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity or energy efficiency of the refrigeration, air conditioning and heat transfer system.

REFRIGERATOR OIL COMPOSITION

There is provided a refrigerating machine oil composition which has a low viscosity, an improved energy saving performance, a good sealability and an excellent loading endurance and, therefore, can be suitably used in various refrigerating application fields, in particular, in closed-system refrigerators. The refrigerating machine oil composition of the present invention comprises a base oil containing a hydrogenated a-olefin oligomer as a main component and having a kinematic viscosity of 1 to 8 mm2/s as measured at 40°C, and is preferably applied to refrigerators having a sliding portion which is made of an engineering plastic material, or provided thereon with an organic coating film or an inorganic coating film.

Compositions containing fluorine substituted olefins

Use of a composition comprising at least one fluoroalkene having the Formula I: XCFzR3-z (I) where X is a C2 to C5 unsaturated, substituted or unsubstituted radical, each R is independently Cl, F, Br, I or H, and z is 1 to 3, as an extractant for biologically-active compounds, fragrances or flavours.

LUBRICANT COMPOSITION FOR REFRIGERATING MACHINES

Provided is a lubricating oil composition for a refrigerator, the refrigerator using a refrigerant which has a low global warming potential and is applicable to, in particular, current car air conditioning systems or the like, that is, the refrigerant including at least one kind of fluorine-containing organic compounds selected from compounds represented by the following molecular formula (A) or including a combination of the fluorine-containing organic compound and a saturated fluorinated hydrocarbon compound, CpOqFrRs (A) where: R represents Cl, Br, I, or H; p represents an integer of 1 to 6, q represents an integer of 0 to 2, r represents an integer of 1 to 14, and s represents an integer of 0 to 13; and provided that, when q represents 0, p represents 2 to 6 and one or more carbon-carbon unsaturated bonds are included in molecules, in which a base oil contained in the composition includes as a main component a polyvinyl ether derivative having a hydroxyl value of 17 mgKOH/g or less.

COMPOSITIONS AND METHODS FOR REDUCING FIRE HAZARD OF FLAMMABLE REFRIGERANTS

Compositions comprising a fluoroolefin

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

LUBRICATING OIL COMPOSITION FOR COOLING SYSTEMS

Refrigerant mixtures comprising tetrafluoropropene, difluoromethane, pentafluoroethane, and tetrafluoroethane, and uses thereof

A non-flammable refrigerant mixture is disclosed. The non-flammable refrigerant mixture may include from 20 weight percent to 25.5 weight percent HFO-1234yf, (b) from 20 weight percent to 24.5 weight percent HFC-32, (c) from 24.5 weight percent to 30 weight percent HFC-125, (d) from 25.5 weight percent to 30 weight percent HFC-134a, and optionally (e) from about 0.0001 weight percent to 10 weight percent trans-HFO-1234ze. These refrigerant mixtures are useful as components in compositions also containing non-refrigerant components (e.g., lubricants), in processes to produce cooling, in methods for replacing refrigerants R-404A, R-507, R-407A, R-407C, R-407F and/or R-22, and in refrigeration apparatuses.

Lubricant for low global warming potential refrigerant systems

The disclosed technology relates to a working fluid for a low global warming potential (GWP) refrigeration system that includes a compressor, where the working fluid includes a polyolester oil, an alkylbenzene oil, and a low GWP refrigerant, and where the ester based lubricant comprises dipentaerythritol esterified with a mixture of carboxylic acids, wherein the mixture of carboxylic acids comprises at least one linear carboxylic acid having 8 to 10 carbon atoms. The disclosed technology provides commercially useful low GWP working fluids (commercially useful working fluids based on low GWP refrigerants) that do not have the solubility and/or miscibility problems commonly seen in low GWP fluids, including high viscosity fluids and applications.

Refrigeration oil composition

This refrigerator oil composition for HFC refrigerants or HC refrigerants is an esterification product of an alcohol component that is composed of pentaerythritol and dipentaerythritol and a fatty acid component that is composed of a linear or branched fatty acid having 5 carbon atoms and/or a linear or branched fatty acid having 6 carbon atoms, and a linear or branched fatty acid having 8 carbon atoms and/or a linear or branched fatty acid having 9 carbon atoms. The fatty acid having 5 carbon atoms and/or the fatty acid having 6 carbon atoms in the fatty acid component is 20-100% by mole of the total amount of the fatty acid component, and either the alcohol component or the fatty acid component is a mixture.

REFRIGERATING MACHINE OIL COMPOSITION

A refrigerating machine oil composition which comprises a base oil comprising a mineral oil and/or a synthetic oil and, compounded therewith, (a) a partial ester of a polyhydric alcohol with a fatty acid and (b) an acid phosphoric ester or an amine salt thereof; and a refrigerating machine oil composition which comprises a base oil comprising a mineral oil and/or a synthetic oil and, compounded therewith, (a) an acid phosphoric ester or an amine salt thereof, (b) an alkylene oxide adduct of an acetylenic glycol, (c) the potassium salt of a fatty acid, etc., (d) an organic acid, and (e) a fatty acide amide, etc. The compositions have excellent lubricating performace and produce a satisfactory friction-reducing effect in either an oily region or an extreme pressure region, especially in friction between an aluminum material and an iron material.

REFRIGERATION LUBRICANT COMPOSITION

The present invention provides a refrigeration lubricant composition comprises an ester obtained from a mixed alcohol and a mixed carboxylic acid as a main component. The mixed alcohol comprises 65 to 99.95 mol% of pentaerythritol and 0.05 to 35 mol% of dipentaerythritol, the mixed carboxylic acid comprises 25 to 55 mol% of monocarboxylic acid having 5 to 8 carbon atoms and 45 to 75 mol% of isononanoic acid, and the composition has a hydroxyl value of 5.0 mgKOH/g or less and an acid value of 0.05 mgKOH/g or less.

A POLYOL ESTER FOR USE WITHIN A REFRIGERATION LUBRICANT COMPOSITION COMPATIBLE WITH CHLORINE-FREE HYDROFLUOROCARBON REFRIGERANTS

The present invention provides a refrigeration lubricant composition comprises an ester obtained from a mixed alcohol and a mixed carboxylic acid as a main component. The mixed alcohol comprises 65 to 99.95 mol% of pentaerythritol and 0.05 to 35 mol% of dipentaerythritol, the mixed carboxylic acid comprises 25 to 55 mol% of monocarboxylic acid having 5 to 8 carbon atoms and 45 to 75 mol% of isononanoic acid, and the composition has a hydroxyl value of 5.0 mgKOH/g or less and an acid value of 0.05 mgKOH/g or less.

HYDROFLUOROCARBON MISCIBLE SYNTHETIC ESTER LUBRICANT BASE STOCK BLENDS

... ²²²Cross blends of synthetic ester base stocks are produced from high viscosity ²synthetic ester base stocks having a viscosity from about iso 120 to 140 and ²conventional synthetic ester base stocks of varying viscosities to form base ²stocks having viscosities from about iso 68 to iso 220. Lubricants formed from ²the cross blends have sufficient miscibility with HFC refrigeration fluids ²with minimal use of i-C9 carboxylic acids to form the ester.² ...

COMPOSITIONS COMPRISING A FLUOROOLEFIN

Compositions containing fluorine substituted olefins

COMPOSITION HAS BASE OF 2,3,3,3-TETRAFLUOROPROPENE

COMPOSITIONS OF TRIFLUOROETHYLENE, AND USES THEREOF

La présente invention concerne une composition comprenant : - le trifluoroéthylène ; - le pentafluoroéthane ; et - au moins un composé C choisi dans le groupe constitué du difluorométhane, du 1,1,1-trifluoroprène , du trifluoroéthane, du 1,1,1,2-tétrafluoroéthane, du monofluoroéthane, du 1,1,1,4,4,4-hexafluorobut-2-ène, du 3,3,4,4,4-pentafluorobut-1-ène, du 2,4,4,4-tétrafluorobut -1-ène, du 1,1,1,3,3-pentafluoropropane, du 2,3,3,3-tétrafluoropropène, du 1,1,2,2-tétrafluoroéthane, du 1,1-difluoroéthane, du 1,1,1,3,3-pentafluorobutane, du butane, du 1,1,1,2,3,3,3-heptafluoropropane, du 1-chloro-trifluoropropène, du 2-méthylbutane , du pentane, du propane, et de leurs mélanges. La présente invention concerne également ses utilisations dans la réfrigération, climatisation et pompes à chaleur.

PROCESS OF TRANSFER OF HEAT

COOLING FLUID

La présente invention a pour objet des compositions à base de tetrafluoropropène et a plus particulièrement pour objet des compositions comprenant de 60 à 90 % en poids du 2,3,3,3 tetrafluoropropène et de 10 à 40 % en poids d'au moins un composé choisi parmi le difluoroéthane et le difluorométhane uitlisable en réfrigération.

Fluorinated Alkene Refrigerant Compositions

냉동기용 작동 유체 조성물

... 본 발명의 냉동기용 작동 유체 조성물은, 모노플루오로에탄을 함유하는 냉매와, 폴리올에스테르, 폴리비닐에테르 및 폴리알킬렌글리콜 화합물로부터 선택되는 적어도 1종을 기유로서 함유하고, 당해 기유의 탄소/산소 몰비가 2.5 이상 5.8 이하인 냉동기유를 함유한다.

LUBRICANT COMPOSITION FOR REFRIGERATING MACHINE

... 본 발명의 냉동기유 조성물은, 기유에 4,4'-메틸렌비스(2,6-디-t-부틸-페놀), 2,2'-메틸렌비스(4-메틸-6-t-부틸페놀), 2,2'-메틸렌비스(4-에틸-6-t-부틸페놀) 및 4,4'-부틸리덴비스(3-메틸-6-t-부틸페놀)로부터 선택된 비스페놀류가 배합되어 이루어지는 것이다.

COMPRESSOR FOR REFRIGERATION AND AIR-CONDITIONING, AND REFRIGERATING AND AIR-CONDITIONING APPARATUS

압축기 및 냉동 사이클 장치

... 실시형태에 의하면, 압축기는, 냉매로서 R32를 이용하는 동시에 냉동기유를 내장한다. 상기 냉동기유와 상기 냉매의 액상 혼합물은 10질량% 내지 40질량%의 범위의 냉동기유 함유율 및 -40℃ 내지 60℃의 온도 범위에서 2층으로 분리되며, 또한 5질량% 이하의 냉동기유 함유율 및 20℃ 내지 40℃의 온도 범위 그리고 55질량% 이상의 냉동기유 함유율 및 20℃ 내지 50℃의 온도 범위에서 상용한다.

REFRIGERATING MACHINE OIL AND WORKING FLUID COMPOSITION FOR REFRIGERATING MACHINES

cooling apparatus

REFRIGERATION OIL AND COMPOSITIONS WITH HYDROCARBON REFRIGERANTS

Polyol ester lubricant compositions comprising predominately straight chain C5-10 alkylcarboxlate esters of neopentyl alcohols, for example, straight chain C5-10 alkylcarboxlate esters of one or more of trimethylol propane, pentaerythritol, di- pentaerythritol, tri-pentaerythritol or pentaerythritol oligomers, and working fluids comprising said lubricant compositions and a hydrocarbon refrigerant, suitable for heat transfer devices including refrigeration and air conditioning systems are provided. The polyol ester lubricant compositions have a kinematic viscosity at 40 °C of 22-125 cSt and a viscosity index of greater than 140, and are characterized by having very high lubricity, excellent load carrying properties and excellent low temperature properties.

LUBRICANTS FOR REFRIGERATION SYSTEMS

A lubricating composition which comprises: (A) a polyalkyleneglycol of the general formula (I) : RO (RaO) x (RbO) y (RcO) zRd (I); wherein: R is a C4 to C6 substituent comprising a heterocyclic ring, in which the heteroatom (s) in said ring(s) is (are) oxygen and/or sulphur, Ra is a C2 alkylene group, Rb is a C3 alkylene group, Rc is a C4 alkylene group, Rd is the same as R, or is a hydrogen atom or a C1-C20 alkyl or C1-C20 acyl group, x, y, z are each independently 0 or an integer in the range of from 1 to 100, and x + y + z = 4 to 100 ; and (B) an ester of a alcohol containing two or more hydroxyl groups with a mono- or dicarboxylic acid, or an ester of an dicarboxylic acid with an alcohol containing one hydroxyl group.

METHOD FOR SELECTING LUBRICANTS FOR HEAT PUMPS

Provided is a method for selecting a lubricant and a refrigerant for use in a vapor-compression refrigeration device such that the combination of the lubricant and refrigerant produces a fluid system having a lubricant-rich phase and a refrigerant-rich phase, yet exhibits miscible-type properties.

REFRIGERATING MACHINE WORKING FLUID COMPOSITION AND REFRIGERANT OIL

This refrigerating machine working fluid composition contains: a refrigerant that contains difluoromethane and an unsaturated fluorinated hydrocarbon, said difluoromethane and an unsaturated fluorinated hydrocarbon having a mass ratio of 95:5 to 10:90; and a refrigerant oil that contains at least one type of base oil selected from polyol ester, which has a carbon/oxygen molar ratio of 3.2 to 5.8, and from polyvinyl ether, which has a carbon/oxygen molar ratio of 3.2 to 5.8.

LUBRICATING OIL COMPOSITION FOR REFRIGERATING MACHINES

This lubricating oil composition for refrigerating machines is made by blending an additive to a base oil, wherein said additive is a hydrocarbon compound having a biphenyl structure or a stilbene structure. In refrigerating devices in which this lubricating oil composition for refrigerating machines is to be used, such as open-type automotive air conditioners, electric automotive air conditioners, gas heat pumps, air conditioners, refrigerators, vending machines, showcases, hot-water supply systems, and refrigeration/heating systems, refrigerant leakage can be detected stably over a long period of time. Thus, this lubricating oil composition for refrigerating machines is extremely effective in cases where an unsaturated fluorocarbon refrigerant with low stability is used in the various devices mentioned above.

LUBRICATING OIL COMPOSITION FOR CHILLER

Provided is a lubricating oil composition for a chiller which has a low global warming potential due to the inclusion of an organic compound having two or more non-conjugated double bonds in a base oil, and which is used for chillers that use a refrigerant having a specific structure, such as an unsaturated fluorinated hydrocarbon, which is a refrigerant that is particularly suitable for existing car air conditioners, air conditioners, and the like. The lubricating oil composition has excellent compatibility with the aforementioned refrigerant, and has excellent thermal and chemical stability.

REFRIGERANT COMPOSITIONS COMPRISING PERFORMANCE ENHANCING ADDITIVES

The present invention is related to refrigerant and lubricant compositions containing performance-enhancing additives. The performance enhancing additives are found to improve the energy efficiency and capacity of vapor compression refrigeration and air conditioning systems, which utilize hydrofluorocarbon refrigerants (e.g. HFC-134a) and oxygenated refrigeration lubricants (e.g. POEs, PAGs and PVEs).

COMPOSITION COMPRISING 2,3,3,3-TETRAFLUOROPROPENE

The invention relates to a composition comprising a lubricant based on polyol esters (POE) and a refrigerant F including at least 99.8 wt.-% 2,3,3,3-tetrafluoropropene, between 0.5 and 500 ppm 1,1,1,2,3-pentafluoropropene, between 0.5 and 500 ppm trifluoropropyne and between 1 and 1500 ppm compounds based on 2 or 3 carbon atoms optionally including an olefinic bond.

COMPOSITION AND METHODS FOR INJECTION OF SEALANTS INTO HVAC AND REFRIGERATION SYSTEMS

An apparatus (12) and method for injecting sealant mixtures based on organosilanes into a hermetically sealed refrigeration and air conditioning systems are described. The mixtures are injected at controlled flow rates and viscosity to prevent bearing seizure. The apparatus (12) comprises metering means (20, 22) such as orifices of different sizes regulating the flow of mixture from a sealed canister (15) into an injection port (17) installed on a low (10) or high (11) side of a compressor (5).

COMPOSITIONS OF A TETRAFLUOROPROPENE AND POLYOL ESTER LUBRICANTS

The present invention relates to heat transfer fluid combinations for use in refrigeration, heat transfer, heat pump, and air conditioning applications. More particularly, the present invention relates to heat transfer fluid combinations of 1,3,3,3-tetrafluoropropene and polyol ester (POE) oils which are useful in refrigeration, heat transfer, heat pump, and air conditioning systems.

Azeotrope-like compositions of tetrafluoropropene and trifluoroiodomethane

Provided are azeotrope-like compositions comprising tetrafluoropropene and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and sprayable compositions, including aerosol propellants.

LUBRICATING OIL COMPOSITION FOR CHILLER

It is to provide a lubricating oil composition for a refrigerating machine that has a low global warming potential by including in a base oil an organic compound having two or more non-conjugated double bonds in the molecule thereof, and that is particularly preferably used for a refrigerating machine using a refrigerant having a particular structure, such as an unsaturated Fluorinated hydrocarbon compound, which is a refrigerant capable of being used for existing car air conditioner system, air conditioners and the like, and that has excellent compatibility with the refrigerant and excellent thermal and chemical stability.

Lubricating oil for refrigerator and refrigerator fluid composition for refrigerator using the same

The present invention proposes a lubricating oil for refrigerators comprising, as the base oil, a polyvinyl ether derivative and a polyoxyalkylene glycol derivative. The lubricating oil exhibits excellent miscibility with a refrigerant having one carbon atom and no chlorine atoms and, in particular, with difluoromethane and provides a hydraulic fluid composition exhibiting excellent antiwear, lubricity and stability.

Compositions comprising a fluoroolefin

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

Refrigerant mixtures comprising tetrafluoropropene, difluoromethane, pentafluoroethane, and tetrafluoroethane and uses thereof

A non-flammable refrigerant mixture is disclosed. The non-flammable refrigerant mixture consists essentially of (a) from 20 weight percent to 25.5 weight percent HFO-1234yf, (b) from 20 weight percent to 24.5 weight percent HFC-32, (c) from 24.5 weight percent to 30 weight percent HFC-125 (d) from 25.5 weight percent to 30 weight percent HFC-134a, and (e) from about 0.0001 weight percent to 10 weight percent trans-HFO-1234ze. These refrigerant mixtures are useful as components in compositions also containing non-refrigerant components (e.g. lubricants), in processes to produce cooling, in methods for replacing refrigerant R-404A or R-507, and in refrigeration apparatus.

REFRIGERANT COMPOSITIONS CONTAINING A COMPATIBILIZER

The present invention provides compositions that are useful for compatabilizing a conventional, non-polar, compression refrigeration lubricant and a hydrofluorocarbon and/or hydrochlorofluorocarbon refrigerant in a compression refrigeration apparatus. Additionally, these composition promote efficeint return of lubricant from the non-compressor zones to the compressor zones of the aforesaid refrigeration apparatus.

COMPOSITION COMPRISING 1-CHLORO-3,3,3-TRIFLUOROPROPENE

L'invention concerne une composition comprenant au moins un lubrifiant à base d'esters de polyol et un fluide frigorigène F comprenant du 1-chloro-3,3,3-trifluoropropène. L'invention concerne également diverses utilisations de cette composition.

COMPOSITIONS AND METHODS FOR REDUCING FIRE HAZARD OF FLAMMABLE REFRIGERANTS

... ²²²The present invention relates to compositions comprising flammable ²refrigerant, fire hazard-reducing agent, and optionally a lubricant suitable ²for use in a refrigeration or air conditioning apparatus. Further, the present ²invention relates to compositions comprising lubricant and fire hazard-²reducing agent and methods for reducing flammability of flammable refrigerant, ²for delivering a fire hazard-reducing agent to a refrigeration or air ²conditioning apparatus, and for replacing a non-flammable refrigerant with a ²flammable refrigerant.² ...

HIGH VISCOSITY SYNTHETIC ESTER LUBRICANT BASE STOCK

A high viscosity synthetic ester base stock of about ISO 68 to 400 is formed from a neopentylpolyol condensed with at least one monocarboxylic acid selected from the group consisting of linear acids having between 4 to 10 carbon atoms and branched chain acids having from 5 to 10 carbon atoms in an excess of hydroxyl to carboxylic acid groups to form a partial polyneopentyl polyol ester that is further reacted with the same or similar acid to form a high viscosity polyneopentyl polyol ester. Lubricants formed from the base stocks have satisfactory miscibility with standard highly or fully fluorinated refrigeration fluids.

3,3,3-trifluoropropene composition

Refrigeration compressor lubricant

HEAT TRANSFER COMPOSITIONS HAVING IMPROVED MISCIBILITY WITH OIL LUBRICATION

COMPOSITIONS OF TRANSFER OF HEAT PRESENTING a MISCIBILITY AMELIOREE WITH the OIL OF LUBRICATION

L'invention concerne une composition comprenant du 2,3,3,3-tétrafluoropropène et une huile de lubrification comprenant un polyalkylène glycol et un ester de polyol, la teneur en ester de polyol dans l'huile de lubrification étant inférieure ou égale à 25 %. L'invention concerne également l'utilisation de cette composition dans des procédés de chauffage ou de refroidissement.

HEAT TRANSFER COMPOSITIONS HAVING IMPROVED MISCIBILITY WITH LUBRICATING OIL

COMPRESSOR FOR REFRIGERATING AIR CONDITIONING USING HEAT PUMP CYCLE AND HAVING IMPROVED ABRASION RESISTANCE, AND A REFRIGERATING AIR CONDITIONAL

PURPOSE: A compressor for refrigerating air conditioning is provided to improve performance and abrasion resistance without using phosphorous-based extreme pressure material. CONSTITUTION: A compressor for refrigerating air conditioning is one in which base oil for refrigerating machine oil and refrigerating machine oil are mixed and sealed. The base oil for refrigerating machine oil comprises a coolant including 2,3,3,3-tetrafluoropropene, 1,3,3,3- tetrafluoropropene or difluoromethane, and at least one kind of base oil selected from polyol ester oils in chemical formula 1 and 2. The refrigerating machine oil comprises addition polyol ester oil in chemical formula 3. The amount of the addition polyol ester oil is 1-30 weight%. In chemical formula 1 and 2, R1 is a C5-9 alkyl group. In chemical formula 3, R2 is a C7-9 alkyl group. COPYRIGHT KIPO 2012 ...

냉동기유, 냉동기용 작동 유체 조성물

... 본 발명에 따른 냉동기유는, 화학식 1로 나타내어지고, 중량 평균 분자량(Mw)과 수 평균 분자량(Mn)의 비 Mw/Mn이 1.00 내지 1.15인 폴리알킬렌 글리콜을 함유하고, 미연성 하이드로플루오로카본 냉매와 함께 사용된다. 화학식 1 R1-(OR3)n-OR2 상기 화학식 1에서, R1 및 R2는, 서로 동일해도 상이해도 좋고, 각각 수소 원자, 탄소수 1 내지 5의 알킬기 또는 탄소수 2 내지 5의 아실기를 나타내고, R3은 탄소수 2 내지 4의 알킬렌기를 나타내고, n은 화학식 1로 나타낸 폴리알킬렌 글리콜의 수 평균 분자량이 1000 내지 2500이 되는 정수를 나타낸다.

윤활 첨가제 및 조성물

... 본원에 기술된 구현예들은 HVAC 시스템의 윤활제에 첨가되어 윤활제 파괴를 방지/감소하는 기능성 조성물을 제공한다. 기능성 조성물은 예를 들어, 확장 장치 및/또는 열 전달 표면(들)의 오리피스 상에 물질이 증착되는 것을 방지/감소시킬 수 있다. 기능성 조성물은 HVAC 시스템의 윤활제에 첨가제로 첨가되어 윤활제 조성물을 형성한다. 윤활제 조성물은 HVAC 시스템에 첨가되어 물질 증착을 방지/감소시킬 수 있다. 임의의 구현예들에서, 기능성 조성물은 HVAC 시스템이 작동하는 동안 HVAC 시스템에 첨가되어 존재하는 물질 증착을 제거/감소시킬 수 있다.

COMPOSITIONS CONTAINING FLUORINE SUBSTITUTED OLEFINS

Various uses of tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including refrigeration equipment, are disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents. © KIPO & WIPO 2008 ...

플루오르 치환된 올레핀을 함유한 조성물들

... 냉각 장비(refrigeration equipment)를 포함하는 다양한 적용처에 있어서, 테트라플루오로프로펜, 특히 (HFO-1234)의 다양한 용도가 개시되어 있다. 이러한 물질들은 일반적으로 가열 및 냉각용 냉매, 발포제, 에어로졸 추진제, 용매 조성물 및 소화 및 내화제로서 사용된다.

할로올레핀류 조성물

... 분해나 산화가 억제된, 안정성이 높은 할로올레핀류 조성물을 제공한다. 할로올레핀류 조성물은, (a) 할로올레핀류와, (b) HFO-1234ze, HFC-254eb, HFO-1243zf, HFC-245eb, HFC-245fa, HFC-245cb, HFC-236ea, HFC-236fa, HFO-1225ye, 3,3,3-트리플루오로프로핀, HFC-23, HFC-32, HFC-125, HFC-143a, HFC-134a, FC-1216, HCFO-1233xf, HCFO-1233zd, HCFO-1232xf, HCFO-1223xd 및 클로로메탄의 군으로부터 선택되는 적어도 1종 이상의 화합물과, (c) 물을 포함하여 이루어진다.

LUBRICATING OIL COMPOSITION FOR REFRIGERATING MACHINE

TETRAESTER OF PENTAERYTHRITOL

Provided is a tetraester of pentaerythritol that is a mixed ester of pentaerythritol and carboxylic acid, the carboxylic acid containing butyric acid, 3,5,5-trimethylhexanoic acid, and aliphatic carboxylic acid having 5-7 carbon atoms, to be used in refrigerant oil and the like having excellent compatibility and the like with difluoromethane refrigerant.

LUBRICATING OIL COMPOSITION FOR REFRIGERATING MACHINE

A lubricating oil composition for refrigerating machines which comprises a lube base oil and an organic compound having one or more double bonds in the molecule, such as an α-olefin or conjugated diene, incorporated as an additive in the base oil. This lubricating oil composition for refrigerating machines can be stably used for long even in the presence of oxygen. It is hence suitable for use in open type automotive air conditioners, electric automotive air conditioners, gas heat pumps, air conditioners, refrigerators, vending machines, showcases, various hot-water supply systems, or refrigeration/heating systems.

POLYESTER LUBRICANT FOR WORKING FLUIDS COMPRISING DIFLUOROMETHANE

Mixtures of select neopentyl polyol esters are found to be highly miscible with the refrigerant R-32 over a wide temperature range. Working fluids are provided comprising R-32 and a lubricant containing these select neopentyl polyol esters and having a kinematic viscosity at 40°C of 32 cSt or higher. Specifically, the lubricant composition of the invention comprises a mixture of alkylcarboxy esters of neopentyl polyols, wherein at least 10 wt % of all neopentyl polyol esters are esters of pentaerythritol oligomers of 4 or more pentaerythritol monomer groups, and wherein a majority of the alkylcarboxylate groups of the alkylcarboxy esters of neopentyl polyols are pentanoyl groups wherein at least 15% of the pentanoyl groups are branched.

LUBRICATING OIL COMPOSITION FOR COMPRESSION REFRIGERATOR HAVING TRACTION MECHANISM

A lubricating oil composition for a compression refrigerator, which comprises the following components (1) to (6) each having a molecular weight of 150 to 5000 and a tertiary or quaternary carbon: (1) an alicyclic hydrocarbon; (2) a branched carboxylic acid ester with a polyhydric alcohol; (3) an alicyclic polycarboxylic acid ester; (4) polybutene; (5) an alkyl benzene and/or an alkyl naphthalene; and (6) a paraffin mineral oil characterized in that a peak area having a chemical shift in 13C-NMR within the range from 30 to 100 ppm comprises 5 to 40% of the entire area and/or a naphthene mineral oil having a naphthene content of 30 to 70% by mass, and which further comprises a base oil having a kinematic viscosity of 2 to 1000 mm2/s at 40ºC. The composition has excellent traction performance, lubricating properties and stability.

REFRIGERATION DEVICE

A refrigeration device (1) is provided with a compressor (2), a condenser (4, 6), an expansion mechanism (5), and an evaporator (6, 4). The refrigeration device (1) uses a refrigerant comprising R32, and a refrigerating machine oil for lubricating the compressor (2). The refrigerating machine oil has blended therein an acid scavenger of which the added amount is 1.0 to 5.0 wt%. The amount of air mixed into the refrigeration device (1) is controlled to 500 ppm or less with respect to an amount of filled refrigerant. An amount of moisture mixed into the refrigeration device (1) is controlled to 300 ppm or less with respect to the amount of filled refrigerant. The temperature of gas discharged from the refrigeration device (1) is controlled to 120°C or below.

REFRIGERANT COMPOSITIONS CONTAINING A COMPATIBILIZER

The present invention provides compositions that are useful for compatabilizing a conventional, non-polar, compression refrigeration lubricant and a hydrofluorocarbon and/or hydrochlorofluorocarbon refrigerant in a compression refrigeration apparatus. Additionally, these composition promote efficeint return of lubricant from the non-compressor zones to the compressor zones of the aforesaid refrigeration apparatus.

AIR CONDITIONER

An air conditioner has a refrigeration cycle configured by connecting a compressor, a condenser, a decompressor, and an evaporator. Sealed within the refrigeration cycle is a mixed refrigerant composed primarily of difluoromethane (R32) and tetrafluoropropene (HFO-1234yf or HFO-1234ze) and having an R32 concentration of 70% or less, the mixed refrigerant circulates through the refrigeration cycle, and the refrigerant condenses when the atmospheric temperature of the refrigeration cycle exceeds 50°C. This allows the discharge temperature of the compressor to be kept equal to that of the currently used R-410A with high efficiency even when the atmospheric temperature is 50°C or greater, the reliability of the refrigeration cycle to be improved, the warming potential of the refrigerant to be kept low, and hence the warming effects to be reduced even when the refrigerant leaks into the atmosphere.

LUBRICANT BASE OIL, REFRIGERATOR OIL AND WORKING FLUID COMPOSITION FOR REFRIGERATORS

This lubricant base oil contains an ester which is synthesized from a first component that is at least one substance selected from among polyhydric alcohols having 2-4 hydroxyl groups, a second component that is at least one substance selected from among polybasic acids having 6-12 carbon atoms, and a third component that is at least one substance selected from among monohydric alcohols having 4-18 carbon atoms and monovalent fatty acids having 2-12 carbon atoms. A refrigerator oil of the present invention and a working fluid composition for refrigerators of the present invention respectively contain the lubricant base oil.

REFRIGERATOR OIL COMPOSITION

Disclosed is a refrigerator oil composition which contains a base oil mainly containing at least one substance selected from the group consisting of monoether compounds, alkyleneglycol diethers and polyoxyalkyleneglycol diethers having an average repeating oxyalkylene groups of 2 or less, and having a kinematic viscosity at 40˚C of 1-8 mm2/s. This refrigerator oil is preferably applied to refrigerating machines whose sliding parts are composed of an engineering plastic or provided with an organic coating film or an inorganic coating film. This refrigerator oil enables to improve energy-saving performance since it has a low viscosity. In addition, the refrigerator oil has good sealing properties and excellent load resistance. This refrigerator oil is suitably used in various refrigeration applications, especially in closed-type refrigerating machines.

REFRIGERATING MACHINE OIL COMPOSITION

La présente invention concerne une composition de refroidissement d'huile mouvement comprenant (A) un composé d'ester d'un acide carboxylique alicyclique présentant un noyau alicyclique et au moins deux groupes d'esters correspondant à la formule générale suivante (1):-COOR1¿ et dont au moins deux sont liés respectivement à des atomes de carbone contigus l'un à l'autre sur le noyau. Dans la formule (1) R1¿ représente un groupe hydrocarboné en C¿1-C¿30 et les R1¿ de tous les groupes d'esters pouvant être identiques ou différents); et (B) au moins un composé époxydique choisi parmi le groupe constitué des composés époxydiques du type d'ester de glycidyle et des composés époxydiques alicycliques.

REFRIGERANT COMPOSITIONS COMPRISING UV FLUORESCENT DYE AND SOLUBILIZING AGENT

The present invention relates to refrigerant compositions comprising refrigerant, UV fluorescent dye and solubilizing agent that enable introduction of leak detectant UV fluorescent dye as solution of dye in refrigerant. Further, the present invention relates to methods for introducing dye, methods for solubilizing dye, methods for detecting leaks and methods for producing refrigeration and heat using the compositions described herein.

Foaming Agents and Compositions Containing Fluorine Substituted Olefins, and Methods of Foaming

Various uses of fluoroalkenes, including tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including as blowing agents are disclosed.

NOISE REDUCTION ADDITIVE

COOLING LUBRICANT COMPOSITION AND COOLING WORK LIQUID COMPOSITION

BASIC LUBRICATING OIL FROM SYNTHETIC ESTERS OF HIGH VISCOSITY

A METHOD FOR THE PRODUCTION OF A POLYOLE ESTER LUBRICANT FOR AT HIGH TEMPERATURE OPERATION REFRIGERATOR COMPRESSION

POLYESTER LUBRICANT FOR AT HIGH TEMPERATURE OPERATION REFRIGERATOR COMPRESSOR

Use of R-1233 in liquid chillers

This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with chloro-trifluoropropenes. The chloro-trifluoropropenes, particularly 1-chloro-3,3,3-trifluoropropene, have high efficiency and unexpectedly high capacity in liquid chiller applications and are useful as more environmentally sustainable refrigerants for such applications, including the replacement of R-123 and R-11.

Compressor and air conditioning apparatus using the same

An air conditioning apparatus including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion valve to depressurize a refrigerant. The refrigerant is formed of hydro fluorocarbon (HFC). The compressor includes a compression unit to compress the refrigerant, a motor unit to provide rotational power to the compression unit, and an oil accommodation portion to store oil to reduce friction between the rotating shaft and the compression unit and lower a temperature of the compressor, and the oil contains a carbon nanoparticle. Even when an HFC-based refrigerant producing high discharge temperature in a compressor is used, deterioration of the compressor due to the high temperature is prevented. In addition, by lowering the operational temperature of the compressor, the reliability and performance of the compressor using the HFC-based refrigerant and the air conditioning apparatus using the same may be enhanced.

Lubricant for Low Global Warming Potential Refrigerant Systems

The disclosed technology relates to a working fluid for a low global warming potential (GWP) refrigeration system that includes a compressor, where the working fluid includes an ester based lubricant and a low GWP refrigerant, and where the ester based lubricant includes an ester of one or more branched carboxylic acids where said branched carboxylic acid contains 8 or less carbon atoms. The disclosed technology provides commercially useful low GWP working fluids (commercially useful working fluids based on low GWP refrigerants) that do not have the solubility and/or miscibility problems commonly seen in low GWP fluids, including high viscosity fluids and applications. 1. A working fluid for a low global warming potential refrigeration system comprising a compressor , the working fluid comprising an ester based lubricant and a low global warming potential refrigerant;wherein the ester based lubricant comprises an ester of one or more branched carboxylic acids where said branched carboxylic acid contains 8 or less carbon atoms.2. The working fluid of wherein said branched carboxylic acid contains 5 carbon atoms.3. The working fluid of wherein said branched carboxylic acid comprises 2-methylbutanoic acid claim 1 , 3-methylbutanoic acid claim 1 , or a combination thereof.4. The working fluid of wherein said ester is formed by the reaction of said acid and one or more polyols claim 1 , wherein said polyol comprises neopentyl glycol claim 1 , glycerol claim 1 , trimethylol propane claim 1 , pentaerythritol claim 1 , dipentaerythritol claim 1 , tripentaerythritol.5. The working fluid of wherein said working fluid further comprises: (i) one or more esters of one or more linear carboxylic acids claim 1 , (ii) one or more polyalphaolefin (PAO) base oils claim 1 , (iii) one more alkyl benzene base oils claim 1 , (iii) one or more polyalkylene glycol (PAG) base oils claim 1 , (iv) one or more alkylated naphthalene base oils claim 1 , or (v) any combination thereof claim 1 , in ...

WORKING FLUID FOR HEAT CYCLE, COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a working fluid for heat cycle which has high durability, which is excellent in the compatibility with a greater variety of refrigerant oils, and which is excellent in the cycle performance (capacity), a composition for a heat cycle system, and a heat cycle system. A working fluid for heat cycle, which contains trifluoroethylene and difluoromethane, wherein the proportion of the total amount of trifluoroethylene and difluoromethane based on the entire amount of the working fluid for heat cycle is higher than 90 mass %, and the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 21/79 to 39/61, a composition for a heat cycle system, and a heat cycle system employing the composition. 1. A working fluid for heat cycle , which contains trifluoroethylene and difluoromethane , whereinthe proportion of the total amount of trifluoroethylene and difluoromethane based on the entire amount of the working fluid for heat cycle is higher than 90 mass % and at most 100 mass %, andthe mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 21/79 to 39/61.2. The working fluid for heat cycle according to claim 1 , wherein the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 23/77 to 39/61.3. The working fluid for heat cycle according to claim 1 , wherein the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 23/77 to 37/63.4. The working fluid for heat cycle according to claim 1 , wherein the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 25/75 to 37/63.5. The working fluid for heat cycle according to claim 1 , wherein the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 25/75 to 35/65.6. The working fluid for heat cycle according to claim 1 , wherein the ...

REFRIGERATION OIL, AND COMPOSITION FOR USE IN REFRIGERATING MACHINE

A refrigerator oil according to one embodiment of the present invention contains: a base oil containing an oxygen-containing organic compound; a polyphosphate ester compound; and a metal salt of an organic carboxylic acid having 6 to 60 carbon atoms. 1: A refrigerator oil , comprising:a base oil comprising an oxygen-containing organic compound;a polyphosphate ester compound; anda metal salt of an organic carboxylic acid having 6 to 60 carbon atoms.2: The refrigerator oil according to claim 1 , wherein a content of the polyphosphate ester compound is from 0.01 to 5.0% by mass based on the total amount of the refrigerator oil.3: The refrigerator oil according to claim 1 , wherein a content of the metal salt of an organic carboxylic acid is 1 ppm or more in terms of metal concentration based on the total amount of the refrigerator oil.4: The refrigerator oil according to claim 1 , wherein the oxygen-containing organic compound is at least one selected from the group consisting of a polyvinyl ether compound claim 1 , a polyoxyalkylene glycol compound claim 1 , a copolymer of a poly(oxy)alkylene glycol or a monoether thereof and a polyvinyl ether claim 1 , and a polyol ester compound.6: The refrigerator oil according to claim 5 , wherein in the general formula (1) Rcomprises an arylene group.9: The refrigerator oil according to claim 1 , wherein the metal salt of an organic carboxylic acid is an alkali metal salt of an organic carboxylic acid.10: The refrigerator oil according to claim 1 , wherein the metal salt of an organic carboxylic acid is a metal salt of an organic carboxylic acid having 16 to 20 carbon atoms.11: The refrigerator oil according to claim 1 , wherein the metal salt of an organic carboxylic acid is potassium oleate.12: A composition for a refrigerator claim 1 , the composition comprising a refrigerant and the refrigerator oil according to .13: The composition for a refrigerator according to claim 12 , wherein the refrigerant is at least one selected ...

Working Fluid Composition for Refrigerator and Refrigeration Oil

Disclosed is a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil comprising an ester of a polyhydric alcohol and a fatty acid, a carbodiimide compound, and a phosphorous compound, and at least one refrigerant selected from 1, 1, 1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene, the fatty acid comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the carbodiimide compound and the phosphorus compound satisfy the conditions represented by the formula (1): 0.11 ≦ ( N C M C · W C ) ( N P M P · W P ) ≦ 4.70 ( 1 ) wherein, N c represents the number of carbodiimide groups per molecule of the carbodiimide compound, M c represents the molecular weight of the carbodiimide compound, W c represents the content of the carbodiimide compound, N p represents the number of phosphorus atoms per molecule of the phosphorus compound, M p represents the molecular weight of the phosphorus compound, and W p represents the content of the phosphorus compound.

REFRIGERATOR OIL AND REFRIGERATOR WORKING FLUID COMPOSITION

The present invention provides a refrigerating machine oil comprising at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less as a base oil, and the refrigerating machine oil being used with a trifluoroethylene refrigerant. 1. A refrigerating machine oil comprising at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less as a base oil , and the refrigerating machine oil being used with a trifluoroethylene refrigerant.2. The refrigerating machine oil according to claim 1 , comprising an ester of a fatty acid and a polyhydric alcohol as the oxygen-containing oil claim 1 , the fatty acid comprising a branched fatty acid having 4 to 9 carbon atoms in a proportion of 20 to 100 mol %.3. A working fluid composition for a refrigerating machine comprising:a refrigerating machine oil comprising at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less as a base oil; anda trifluoroethylene refrigerant.4. The working fluid composition for a refrigerating machine according to claim 3 , wherein the refrigerating machine oil comprises an ester of a fatty acid and a polyhydric alcohol as the oxygen-containing oil claim 3 , the fatty acid comprising a branched fatty acid having 4 to 9 carbon atoms in a proportion of 20 to 100 mol %.5. (canceled)6. (canceled) The present invention relates to a refrigerating machine oil and a working fluid composition for a refrigerating machine.Against the background of the recent problem of ozone layer depletion, CFC (chlorofluorocarbon) and HCFC (hydrochloro-fluorocarbon) conventionally used as refrigerants for refrigerating machines are subject to regulation and, instead of them, HFC (hydrofluorocarbon) is becoming widely used as a refrigerant. However, one of the HFC refrigerants, HFC-134a, which is commonly used as a refrigerant for car air conditioners, is subject to regulation in Europe due to its high global ...

COMPOSITION BASED ON 1,3,3,3-TETRAFLUOROPROPENE

A composition including a lubricant based on polyol esters (POEs) or PVE and a refrigerant F including from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze) and from 1 to 99% by weight of 1,1,1,2-tetrafluoroethane. Also, the use of the composition including a lubricant and refrigerant in refrigeration, air conditioning and heat pumps. 17-. (canceled)8. A composition comprising at least one lubricant comprising at least one polyol ester or at least one polyvinyl ether and a refrigerant comprising from 5 to 10% by weight of trans-1 ,3 ,3 ,3-tetrafluoropropene (trans-HFO-1234ze) and from 10 to 30% by weight of 1 ,1 ,1 ,2-tetrafluoroethane.9. The composition according to claim 8 , wherein the refrigerant comprises from 5 to 10% by weight of trans-1 claim 8 ,3 claim 8 ,3 claim 8 ,3-tetrafluoropropene (trans-HFO-1234ze) and from 20 to 30% by weight of 1 claim 8 ,1 claim 8 ,1 claim 8 ,2-tetrafluoroethane.10. The composition according to claim 8 , wherein the at least one lubricant comprises at least one polyol ester claim 8 , wherein the at least one polyol ester is obtained from a polyol having a neopentyl backbone.11. The composition according to claim 10 , wherein the polyol having a neopentyl backbone is selected from the group consisting of neopentyl glycol claim 10 , trimethylolpropane claim 10 , and dipentaerythritol.12. The composition according to claim 8 , wherein the at least one lubricant comprises at least one polyol ester claim 8 , wherein the at least one polyol ester is obtained from a linear or branched carboxylic acid containing from 2 to 15 carbon atoms.13. The composition according to claim 8 , wherein the at least one lubricant comprises at least one polyol ester claim 8 , wherein the at least one polyol ester is between 10 and 50% by weight of the composition.14. The composition according to claim 8 , wherein the polyvinyl ether represents between 10 and 50% by weight of the composition.16. The composition according to claim ...

METHOD OF SELECTING REFRIGERANT-LUBRICANT COMBINATIONS

The present invention provides methods for selecting refrigerant and lubricant combinations for use in heat transfer cycle systems and provides methods for operating said heat transfer system. More particularly, the invention provides methods to select lubricant and refrigerant combinations for a heat transfer cycle system wherein at the lower temperatures of the heat transfer cycle the refrigerant and lubricant are miscible and at the upper temperatures of the heat transfer cycle the refrigerant and lubricant are phase separated and such that the density phase inversion temperature of the combination is below the upper operating temperature of the heat transfer cycle. 1. A method of operating a vapor-compression heat transfer system containing a refrigerant and a lubricant combination comprising:a. determining a lower, evaporator discharge operating temperature range of a vapor-compression heat transfer system;b. determining an upper, compressor discharge operating temperature range of the vapor-compression heat transfer system; andc. wherein said refrigerant is selected from hydrofluorocarbons (HFCs), hydrofluoroolefis (HFOs), hydrochlorofluorocarbos (HCFCs), hydrochlorofluoroolefins (HCFOs), hydrocarbons (HCs), carbon dioxide, ammonia, dimethyl ether, or mixtures thereof at a first concentration and said lubricant is selected from polyalkylene glycols (PAGs), polyol esters (POEs), polyvinyl ethers (PVEs), polyglycols, polyalkylene glycol esters, alkyl benzenes, mineral oils, polyalphaolefins, or mixtures thereof at a second concentration and wherein said refrigerant and said lubricant are miscible at a first temperature within said lower, evaporator discharge operating temperature range and produce a fluid system having a refrigerant-rich phase and a lubricant-rich phase at a second temperature within said upper, compressor discharge operating temperature range provided that said second temperature is higher than said first temperature, wherein the lubricant-rich ...

REFRIGERANT COMPRESSOR AND FREEZING APPARATUS USING SAME

Refrigerant compressor includes electromotive element, and compression element that is driven by electromotive element, includes a slider, and compresses a refrigerant. Freezer oil that lubricates the slider is added with fullerene having a diameter that ranges from 100 pm to 10 nm. 1. A refrigerant compressor comprising:an electromotive element; anda compression element that is driven by the electromotive element, includes a slider, and compresses a refrigerant,wherein a freezer oil that lubricates the slider is added with a fullerene having a diameter that ranges from 100 pm to 10 nm.2. The refrigerant compressor according to claim 1 , wherein one of a C60 fullerene, a C70 fullerene, and a higher-order fullerene including a larger number of carbons than a number of carbons of the C70 fullerene; or', 'a mixed fullerene obtained by mixing at least two of the C60 fullerene, the C70 fullerene, and the higher-order fullerene., 'the fullerene is3. The refrigerant compressor according to claim 1 , wherein a shape of the fullerene is spherical or elliptic.4. The refrigerant compressor according to claim 1 , wherein an additive amount of the fullerene is less than or equal to a saturating amount of dissolution with respect to the freezer oil.5. The refrigerant compressor according to claim 1 , whereinthe refrigerant compressed by the compression element is a hydrofluorocarbon (HFC) refrigerant or a mixed refrigerant including the HFC refrigerant, and one of ester oil, alkylbenzene oil, polyvinyl ether, and polyalkylene glycol; or', 'mixed oil of at least two of the ester oil, the alkylbenzene oil, the polyvinyl ether, and the polyalkylene glycol., 'the freezer oil is6. The refrigerant compressor according to claim 1 , wherein one natural refrigerant of R600a, R290, and R744; or', 'a mixed refrigerant that includes at least one of the R600a, the R290, and the R744, and, 'the refrigerant compressed by the compression element is one of mineral oil, ester oil, alkylbenzene oil ...

COMPOSITION BASED ON 2,3,3,3-TETRAFLUOROPROPENE

A composition including a lubricant based on polyol esters (POEs) or polyvinyl ether (PVE) and a refrigerant F including from 1 to 99% by weight of 2,3,3,3-tetrafluoropropene (HFO-1234yf) and from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze). Also, the use of the composition in refrigeration, air conditioning and heat pumps. 1. Composition comprising at least one lubricant comprising polyol esters or polyvinyl ether and a refrigerant F comprising from 1 to 99% by weight of 2 ,3 ,3 ,3-tetrafluoropropene (HFO-1234yf) and from 1 to 99% by weight of trans-1 ,3 ,3 ,3-tetrafluoropropene (trans-HFO-1234ze).2. Composition according to claim 1 , characterized in that the refrigerant F comprises from 5 to 70% by weight of 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene (HFO-1234yf) and from 30 to 95% by weight of trans-1 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene (trans-HFO-1234ze).3. Composition according to claim 1 , characterized in that the refrigerant F comprises from 25 to 55% by weight of 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene (HFO-1234yf) and from 45 to 75% by weight of trans-1 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene (trans-HFO-1234ze).4. Composition according to claim 1 , characterized in that the polyol esters are obtained from polyols having a neopentyl backbone.5. Composition according to claim 4 , characterized in that the polyol having a neopentyl backbone is selected from the group consisting of neopentyl glycol claim 4 , trimethylolpropane claim 4 , pentaerythritol and dipentaerythritol.6. Composition according to claim 1 , characterized in that the polyol esters are obtained from a linear or branched carboxylic acid containing from 2 to 15 carbon atoms.7. Composition according to claim 1 , characterized in that the polyol esters comprise between 10 and 50% by weight of the composition. The present application is a continuation of U.S. application Ser. No. 13/232,165, filed on Sep. 14, 2011 ...

Refrigerator oil and working fluid composition for refrigerators

The invention provides a refrigerating machine oil comprising as a base oil at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less, and being used in combination with a (Z)-1,1,1,4,4,4-hexafluoro-2-butene refrigerant.

REFRIGERATION APPARATUS

A refrigeration apparatus includes a compressor, a first heat exchanger, an expansion mechanism, and a second heat exchanger. The compressor compresses low-pressure gas refrigerant and discharges high-pressure gas refrigerant. The first heat exchanger condenses high-pressure gas refrigerant and discharges high-pressure liquid refrigerant during an air-cooling operation, or evaporates low-pressure gas-liquid mixed refrigerant and discharges low-pressure gas refrigerant during an air-heating operation. The expansion mechanism has metal components. High-pressure liquid refrigerant passes through the expansion mechanism, and becomes low-pressure gas-liquid mixed refrigerant. The second heat exchanger evaporates low-pressure gas-liquid mixed refrigerant and discharges low-pressure gas refrigerant during an air-cooling operation, or condenses high-pressure gas refrigerant and discharges high-pressure liquid refrigerant during an air-heating operation. The refrigerant contains at least 60 wt % of R32. An acid scavenger added in an amount of 1.0 wt % to 5.0 wt % is blended in refrigerator oil for lubricating the compressor. 1. A refrigeration apparatus comprising:a compressor, the compressor compressing low-pressure gas refrigerant and discharging high-pressure gas refrigerant;a first heat exchanger, the first heat exchanger condensing high-pressure gas refrigerant and discharging high-pressure liquid refrigerant during an air-cooling operation, the first heat exchanger evaporating low-pressure gas-liquid mixed refrigerant and discharging low-pressure gas refrigerant during an air-heating operation;an expansion mechanism, the expansion mechanism having metal components, high-pressure liquid refrigerant passing through the expansion mechanism, and becoming low-pressure gas-liquid mixed refrigerant; anda second heat exchanger, the second heat exchanger evaporating low-pressure gas-liquid mixed refrigerant and discharging low-pressure gas refrigerant during an air-cooling ...

REFRIGERATOR OIL AND WORKING FLUID COMPOSITION FOR REFRIGERATORS

The present invention provides a refrigerating machine oil comprising: an ester of a polyhydric alcohol and a fatty acid as a base oil; and an ether compound of a polyhydric alcohol, the refrigerating machine oil being used with an unsaturated hydrofluorocarbon refrigerant. 1. A refrigerating machine oil comprising:an ester of a polyhydric alcohol and a fatty acid as a base oil; andan ether compound of a polyhydric alcohol.3. The refrigerating machine oil according to claim 1 , wherein a content of the ether compound is 0.4% by mass or less based on a total amount of the refrigerating machine oil.4. A working fluid composition for a refrigerating machine comprising:a refrigerating machine oil; andan unsaturated hydrofluorocarbon refrigerant, an ester of a polyhydric alcohol and a fatty acid as a base oil; and', 'an ether compound of a polyhydric alcohol., 'wherein the refrigerating machine oil comprises5. The working fluid composition for a refrigerating machine according to claim 4 , wherein the unsaturated hydrofluorocarbon is at least one selected from 1 claim 4 ,3 claim 4 ,3 claim 4 ,3-tetrafluoropropene and 2 claim 4 ,3 claim 4 ,3 claim 4 ,3-tetrafluoropropene.7. The working fluid composition for a refrigerating machine according to claim 4 , wherein a content of the ether compound is 0.4% by mass or less based on a total amount of the refrigerating machine oil. The present invention relates to a refrigerating machine oil and a working fluid composition for a refrigerating machine.Refrigerating machines such as refrigerators, car air-conditioners, room air-conditioners, and automatic vending machines have a compressor for circulating a refrigerant in a refrigeration cycle. The compressor is charged with a refrigerating machine oil for lubricating a sliding part. Thus, the refrigerating machine oil coexists with the refrigerant in the refrigerating machine and, therefore, the refrigerating machine oil is required to have properties such as: lubricity, and ...

Lubricant for Low Global Warming Potential Refrigerant Systems

The disclosed technology relates to a working fluid for a low global warming potential (GWP) refrigeration system that includes a compressor, where the working fluid includes a polyolester oil, an alkylbenzene oil, and a low GWP refrigerant, and where the ester based lubricant comprises dipentaerythritol esterified with a mixture of carboxylic acids, wherein the mixture of carboxylic acids comprises at least one linear carboxylic acid having 8 to 10 carbon atoms. The disclosed technology provides commercially useful low GWP working fluids (commercially useful working fluids based on low GWP refrigerants) that do not have the solubility and/or miscibility problems commonly seen in low GWP fluids, including high viscosity fluids and applications. 1. A working fluid for a low global warming potential refrigeration system comprising a compressor comprising:(a) a lubricating oil component comprising (i) a polyolester oil, wherein the polyolester oil comprises dipentaerythritol esterified with a mixture of carboxylic acids, wherein the mixture of carboxylic acids comprises at least one linear carboxylic acid having 8 to 10 carbon atoms and (ii) an alkylbenzene; and(b) a refrigerant comprising hydrofluoroolefin-1336mzzZ/trans-1,2-dichloroethylene.2. The working fluid of claim 1 , wherein the polyolester oil has a neat viscosity of 150 cSt to 180 cSt measured at 40° C. according to ASTM D445.3. The working fluid of claim 1 , wherein the alkylbenzene has a neat viscosity of 3 cSt to 100 cSt measured at 100° C. according to ASTM D445.4. The working fluid of claim 1 , wherein the polyolester oil comprises 10 mol % to 20 mol % of a linear carboxylic acid having 8 carbon atoms.5. The working fluid of claim 1 , wherein the polyolester oil comprises 5 mol % to 12 mol % of a linear carboxylic acid having 10 carbon atoms.6. The working fluid of claim 1 , wherein the polyolester oil comprises 10 mol % to 20 mol % dipentareythritol claim 1 , 0 mol % to 10 mol % of a linear carboxylic ...

Refrigerator lubricating oil and mixed composition for refrigerator

Disclosed herein is a mixed composition for a refrigerator, the mixed composition containing: a refrigerant containing at least one unsaturated fluorinated hydrocarbon compound selected from compounds represented by the following molecular formula (1): C p F r H s (1), provided that the compound has one or more carbon-carbon unsaturated bond in a molecule: and a refrigerator lubricating oil containing, as a major component, a polyoxyalkylene glycol compound represented by the following general formula (2), and containing a phenothiazine compound in an amount of 1.0% by mass or more based on the total amount of the refrigerator lubricating oil: R 1 —[(OR 2 ) m —OR 3 ] n (2). A mixed composition for a refrigerator is provided having a lower possibility of autoignition in a high temperature environment even during unexpected leakage in a refrigerator using a refrigerant containing a slightly flammable refrigerant. A refrigerator lubricating oil is provided that is capable of being applied to the mixed composition.

COMPOSITION FOR HEAT CYCLE SYSTEM AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A and a heat cycle system employing the composition. 1. A composition for a heat cycle system comprising a working fluid for heat cycle containing 1 ,2-difluoroethylene , and a refrigerant oil.2. The composition for a heat cycle system according to claim 1 , wherein 1 claim 1 ,2-difluoroethylene is trans-1 claim 1 ,2-difluoroethylene claim 1 , cis-1 claim 1 ,2-difluoroethylene or a mixture thereof.3. The composition for a heat cycle system according to claim 1 , wherein the refrigerant oil is at least one member selected from an ester refrigerant oil claim 1 , an ether refrigerant oil and a hydrocarbon refrigerant oil.4. The composition for a heat cycle system according to claim 1 , wherein the kinematic viscosity of the refrigerant oil at 40° C. is from 1 to 750 mm/s.5. The composition for a heat cycle system according to claim 1 , wherein the proportion (carbon/oxygen molar ratio) of carbon atoms to oxygen atoms of the refrigerant oil is from 2 to 7.5.6. The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains at least one member selected from a saturated hydrofluorocarbon.7. The composition for a heat cycle system according to claim 6 , wherein the saturated hydrofluorocarbon is at least one member selected from difluoromethane claim 6 , 1 claim 6 ,1-difluoroethane claim 6 , 1 claim 6 ,1 claim 6 ,1 claim 6 ,2-tetrafluoroethane and pentafluoroethane.8. The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains at least one member selected from a hydrofluorocarbon having a carbon-carbon double bond other than 1 claim 1 ,2-difluoroethylene.9. The composition for a heat cycle system according to claim 8 , wherein the hydrofluorocarbon having a ...

COMPOSITION FOR HEAT CYCLE SYSTEM AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. 1. A composition for a heat cycle system comprising a working fluid for heat cycle containing 1 ,2-difluoroethylene , and a stabilizer for preventing deterioration of the working fluid for heat cycle.2. The composition for a heat cycle system according to claim 1 , wherein 1 claim 1 ,2-difluoroethylene is trans-1 claim 1 ,2-difluoroethylene claim 1 , cis-1 claim 1 ,2-difluoroethylene or a mixture thereof.3. The composition for a heat cycle system according to claim 1 , wherein the stabilizer is at least one stabilizer selected from an oxidation resistance-improving agent claim 1 , a heat resistance-improving agent and a metal deactivator.4. The composition for a heat cycle system according to claim 1 , wherein the stabilizer is at least one compound selected from the group consisting of a phenol compound claim 1 , an unsaturated hydrocarbon group-containing aromatic compound claim 1 , an aromatic amine compound claim 1 , an aromatic thiazine compound claim 1 , a terpene compound claim 1 , a quinone compound claim 1 , a nitro compound claim 1 , an epoxy compound claim 1 , a lactone compound claim 1 , an orthoester compound claim 1 , a mono- or di-alkali metal salt compound of phthalic acid claim 1 , and a thiodiphenyl ether hydroxide compound.5. The composition for a heat cycle system according to claim 1 , which contains the stabilizer in an amount of at least 1 mass ppm.6. The composition for a heat cycle system according to claim 1 , wherein the proportion of 1 claim 1 ,2-difluoroethylene is at least 20 mass % based on the working fluid for heat cycle.7. The composition for a heat cycle system according to claim 1 , wherein the proportion of 1 claim 1 ,2-difluoroethylene is from 20 to 80 mass % based on the working fluid for heat ...

WORKING FLUID COMPOSITION FOR REFRIGERATOR

The working fluid composition for a refrigerating machine of the present invention comprises a refrigerant comprising a first refrigerant component and a second refrigerant component, and having a global warming potential (GWP) of 500 or less, wherein the first refrigerant component is at least one selected from difluoromethane and tetrafluoropropene, and the second refrigerant component is at least one selected from carbon dioxide and a hydrocarbon having 3 to 4 carbon atoms; and a refrigerating machine oil comprising at least one selected from a polyol ester, a polyvinyl ether arid a polyalkylene glycol compound as a base oil, wherein a carbon/oxygen molar ratio of the base oil is 2.5 or more and 5.8 or less. 4. The working fluid composition for a refrigerating machine according to claim 1 , wherein the hydrocarbon having 3 to 4 carbon atoms is propane or isobutane claim 1 , and a global warming potential of the refrigerant is 300 or less.5. The working fluid composition for a refrigerating machine according to claim 1 , wherein a mass ratio of the refrigerant to the refrigerating machine oil is 90:10 to 30:70.6. The working fluid composition for a refrigerating machine according to claim 1 , wherein the polyol ester has a carbon/oxygen molar ratio of from 4.0 to 5.0 claim 1 , and the polyol ester is obtainable by synthesis from a fatty acid having 4 to 9 carbon atoms and a polyhydric alcohol having 4 to 12 carbon atoms. The present application is a Divisional Application of U.S. application Ser. No. 14/387,079, filed on Sep. 22, 2014, which is a U.S. National Stage Application of International Patent Application No. PCT/JP2013/058587 filed Mar. 25, 2013, which claims priority to Japanese Application No. 2012-157976 filed on Jul. 13, 2012 and Japanese Application No. 2012-072310 filed on Mar. 27, 2012. The disclosures of U.S. Application No. 14/387,079 and International Patent Application No. PCT/JP2013/058587 are incorporated by reference herein their entireties. ...

COMPOSITIONS CONTAINING CHLOROFLUOROOLEFINS OR FLUOROOLEFINS

Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HF0-1233, or HF0-1354 having properties highly beneficial in foaming and blowing agent applications, articles and methods. 2. The composition of wherein said one or more compounds in accordance with Formula II consist essentially of 1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoro-I-propene (CF—CH═CHCl.)3. The composition of wherein said composition consists essentially of said mineral oil and said 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoro-I-propene.4. The composition of wherein said 1-chloro-3 claim 3 ,3 claim 3 ,3-trifluoro-1-propene is present in the composition n amount of at least about 20% by weight and said mineral oil is present in the composition in an amount of at least about 20% claim 3 ,5. The composition of wherein said 1-chloro-3.3.3-trifluoro-1-propene is present in the composition amount of at least about 30% by weight.6. The composition of wherein said 1-chloro-3 claim 3 ,3 claim 3 ,3-trifluoro-1-propene is present in the composition in amount of at least about 50% by weight.7. The composition of wherein said mineral oil is present in the composition in an amount of at least about 20%.8. The composition of wherein said 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoro-1-propene is present in the composition in amount of at least about 70% by weight.9. The composition of wherein said composition consists essentially of said mineral oil and said 1-chloro-3 claim 8 ,3:3-trifluoro-I-propene.10. The composition of wherein said wherein said 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoro-1-propene:mineral oil weight ratio is from about 80:20 to about 20:80.11. The composition of wherein said 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoro-1-propene and said mineral oil are miscible.12. The composition of wherein said 1-chloro-3 claim 11 ,3 claim 11 ,3-trifluoro-1-propene is present in the composition in amount of at ...

COMPOSITIONS COMPRISING A FLUOROOLEFIN

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents. 15-. (canceled)6. A composition comprising HFC-1234yf and HFC-134a; wherein said HFC-1234yf is present at about 20 weight percent to about 99 weight percent.7. The composition of claim 6 , wherein said HFC-1234yf is present at about 40 weight percent to about 99 weight percent.8. The composition of claim 6 , wherein said HFC-1234yf is present at about 50 weight percent to about 99 weight percent.9. The composition of claim 6 , consisting essentially of about 30 weight percent to about 99 weight percent HFC-1234yf and about 70 weight percent to about 1 weight percent HFC-134a.10. The composition of claim 6 , further comprising a lubricant selected from the group consisting of polyol esters claim 6 , polyalkylene glycols claim 6 , polyvinyl ethers claim 6 , mineral oil claim 6 , alkylbenzenes claim 6 , synthetic paraffins claim 6 , synthetic napthenes claim 6 , and poly(alpha)olefins.11. The composition of claim 6 , further comprising a stabilizer claim 6 , water scavenger claim 6 , or odor masking agent.12. The composition of claim 6 , wherein said stabilizer is selected from the group consisting of nitromethane claim 6 , hindered phenols claim 6 , hydroxylamines claim 6 , thiols claim 6 , phosphites and lactones.13. A method of producing cooling claim 6 , said method comprising: evaporating said composition of in the vicinity of a body to be cooled and thereafter condensing said composition.14. A method of producing heat claim 6 , said method comprising: condensing said composition of in the vicinity of a body to be heated and thereafter evaporating said ...

Refrigerator Oil, and Working Fluid Composition for Refrigerators

The present invention provides a refrigerating machine oil comprising a polyvinylether having a structural unit represented by the following formula (1): 2. A working fluid composition for a refrigerating machine , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the refrigerating machine oil according to ; and'}a mildly flammable hydrofluorocarbon refrigerant.3. The working fluid composition for a refrigerating machine according to claim 2 , wherein the mildly flammable hydrofluorocarbon refrigerant comprises at least one selected from difluoromethane claim 2 , 1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , and 2 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene.45-. (canceled) The present invention relates to a refrigerating machine oil, a working fluid composition for a refrigerating machine, use of a composition containing a polyvinylether for a refrigerating machine oil or a working fluid composition for a refrigerating machine, and use of a polyvinylether for manufacturing a refrigerating machine oil or a working fluid composition for a refrigerating machine, and a method of flame-retarding a refrigerating machine.CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons), which have been conventionally used as refrigerants for refrigeration equipment, have become objects of regulations due to the problem of recent ozone layer depletion, and HFCs (hydrofluorocarbons) are used as refrigerants instead of them.In the case of using a CFC or HCFC as a refrigerant, hydrocarbon oils such as mineral oil and alkylbenzenes have been used suitably as a refrigerating machine oil. However, depending on the type of the coexistent refrigerant, the refrigerating machine oil may exhibit unpredictable behavior in, for example, compatibility with the refrigerant, lubricity, solution viscosity with the refrigerant, and thermal and chemical stability, and therefore the refrigerating machine oil needs to be developed for each refrigerant. Thus, ...

Compositions comprising a fluoroolefin

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

COMPOSITIONS COMPRISING A FLUOROOLEFIN

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents. 15-. (canceled)6. A mobile air-conditioning apparatus containing a composition comprising HFC-1234yf and at least one compound selected from trans-HFC-1234ze , cis-HFC-1234ze , HFC-1243zf , HFC-32 , and CO.7. The apparatus of claim 6 , wherein the composition comprises HFC-1234yf and at least one compounds selected from trans-HFC-1234ze and CO.8. The apparatus of claim 6 , wherein the composition consists of HFC-1234yf claim 6 , trans-HFC-1234ze claim 6 , and CO.9. The apparatus of claim 6 , wherein the composition comprises HFC-1234yf and at least one compound selected from trans-HFC-1234ze claim 6 , cis-HFC-1234ze claim 6 , and HFC-1243zf.10. The apparatus of claim 6 , wherein the composition comprises HFC-1234yf and at least one compound selected from trans-HFC-1234ze and HFC-32.11. The apparatus of claim 6 , wherein the composition comprises HFC-1234yf and at least one compound selected from HFC-32 and CO.12. The apparatus of claim 6 , wherein the composition consists of HFC-1234yf and HFC-32.13. The apparatus of claim 12 , wherein the composition consists of from about 40 to 99 weight percent HFC-1234yf and from about 1 to 60 weight percent HFC-32.14. The apparatus of claim 6 , wherein said composition further comprises at least one lubricant selected from the group consisting of polyol esters claim 6 , polyalkylene glycols claim 6 , polyvinyl ethers claim 6 , mineral oil claim 6 , alkylbenzenes claim 6 , synthetic paraffins claim 6 , synthetic napthenes claim 6 , and poly(alpha)olefins.15. The apparatus of claim 6 , wherein said composition further ...

FLUORINATED ALKENE REFRIGERANT COMPOSITIONS

Liquid compositions for use in compression refrigeration, air-conditioning and heat pump systems in which a fluoroalkene containing from 3 to 4 carbon atoms and at least 1 but no more than 2 double bonds is combined with an effective amount to provide lubrication of an essentially miscible organic lubricant comprised of carbon, hydrogen and oxygen and having a ratio of oxygen to carbon effective to provide a degree of miscibility with said fluoroalkene so that when up to five weight percent of lubricant is added to said fluoroalkene the refrigerant has one liquid phase at at least one temperature between −40 and +70° C. Methods for producing refrigeration and heating with the fluoroalkenes, alone or in combination with the disclosed lubricants, are also disclosed. 1. A liquid composition for use in compression refrigeration , air-conditioning and heat pump systems comprising:(A) a fluoroalkene containing from 3 to 4 carbon atoms and at least 1 but no more than 2 double bonds; and(B) an effective amount to provide lubrication of an essentially miscible organic lubricant comprised of carbon, hydrogen and oxygen and having a ratio of oxygen to carbon effective to provide a degree of miscibility with said fluoroalkene so that when up to five weight percent of lubricant is added to said fluoroalkene the mixture has one liquid phase at at least one temperature between −40 and +70° C.2. The composition of claim 1 , wherein the mixture has one liquid phase when up to five weight percent of lubricant is added to said fluoroalkene.3. The composition of claim 2 , wherein the mixture has one liquid phase when up to 20 weight percent of lubricant is added to said fluoroalkene.4. The composition of claim 3 , wherein the mixture has one liquid phase in all proportions of fluoroalkene and lubricant.5. The composition of claim 1 , wherein the mixture has one liquid phase over essentially the entire temperature range.6. The composition of claim 1 , wherein said lubricant is selected ...

REFRIGERATOR LUBRICATING OIL AND MIXED COMPOSITION FOR REFRIGERATOR

Disclosed herein is a mixed composition for a refrigerator, which contains: a refrigerant containing at least one unsaturated fluorinated hydrocarbon compound selected from compounds represented by the following molecular formula (1): CFH, and a refrigerator lubricating oil containing, as a major component, a polyoxyalkylene glycol compound represented by the following general formula (2), and containing an amine compound in an amount of 1.0% by mass or more based on the total amount of the refrigerator lubricating oil: R—[(OR)—OR](2). According to the present disclosure, a mixed composition for a refrigerator can be provided that has a less possibility of autoignition under a high temperature environment even in an unexpected leakage thereof in a refrigerator using a refrigerant containing a slightly flammable refrigerant, and a refrigerator lubricating oil can be provided that is capable of being applied to the mixed composition for a refrigerator. 2: The mixed composition according to claim 1 , wherein the refrigerant consists of the at least one unsaturated fluorinated hydrocarbon compound.3: The mixed composition according to claim 1 , wherein the at least one unsaturated fluorinated hydrocarbon compound is a fluoride of propene.4: The mixed composition according to claim 3 , wherein the fluoride of propene is at least one selected from the group consisting of isomers of pentafluoropropene claim 3 , 3 claim 3 ,3 claim 3 ,3-trifluoropropene claim 3 , and 1 claim 3 ,3 claim 3 ,3 claim 3 ,3-tetrafluoropropene.5: The mixed composition according to claim 1 , wherein the refrigerator lubricating oil comprises the amine compound in an amount of 1.0% by mass or more and 5.0% by mass or less based on the total amount of the refrigerator lubricating oil.6: The mixed composition according to claim 1 , wherein the amine compound is at least one selected from the group consisting of diphenylamine claim 1 , dioctylphenylamine claim 1 , butylphenyloctylphenylamine claim 1 , ...

COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

A compressor is configured to form a refrigerant circuit using refrigerant containing a substance having such a property as to cause a disproportionation reaction, and includes a shell serving as an outer shell, a compression chamber installed inside the shell, the compression chamber being configured to compress the sucked refrigerant, cause the compressed refrigerant to flow into the shell to place the shell under a high-pressure refrigerant atmosphere, and discharge the compressed refrigerant externally, and a motor configured to feed power to the compressor. With the configuration described above, a disproportionation reaction is made unlikely to occur. As a result, the substance having such a property as to cause a disproportionation reaction can be used safely as the refrigerant. 1. A compressor configured to form a part of a refrigerant circuit circulating refrigerant , the compressor comprising:a hermetic container serving as an outer shell;a compression chamber installed inside the hermetic container, the compression chamber being configured to compress the refrigerant containing a substance having such a property as to cause a disproportionation reaction, which is sucked, cause the compressed refrigerant to flow into the hermetic container to place the hermetic container under a high-pressure refrigerant atmosphere, and discharge the compressed refrigerant externally; anda motor configured to feed power to the compression chamber,{'sup': '10', 'refrigerating machine oil having miscibility with the refrigerant and having a volume resistivity at 20 degrees Celsius of 2×10Ω·m or more being filled.'}2. The compressor of claim 1 , wherein the refrigerant in a two-phase state is sucked.3. The compressor of claim 2 , wherein the refrigerant in the two-phase state is quality of 0.8 or higher and 0.99 or lower.4. The compressor of claim 1 , wherein an insulating material for the motor comprises a resin material.5. The compressor of claim 4 , wherein one or more ...

COMPOSITIONS COMPRISING A FLUOROOLEFIN

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents. 15-. (canceled)6. A composition comprising trans-HFC-1234ze and HFC-227ea; wherein said trans-HFC-1234ze is present at about 20 weight percent to about 99 weight percent.7. The composition of claim 6 , wherein said trans-HFC-1234ze is present at about 40 weight percent to about 99 weight percent.8. The composition of claim 6 , wherein said trans-HFC-1234ze is present at about 50 weight percent to about 99 weight percent.9. The composition of claim 6 , consisting essentially of about 20 weight percent to about 80 weight percent trans-HFC-1234ze and about 80 weight percent to about 20 weight percent HFC-227ea.10. The composition of claim 6 , further comprising a lubricant selected from the group consisting of polyol esters claim 6 , polyalkylene glycols claim 6 , polyvinyl ethers claim 6 , mineral oil claim 6 , alkylbenzenes claim 6 , synthetic paraffins claim 6 , synthetic napthenes claim 6 , and poly(alpha)olefins.11. The composition of claim 6 , further comprising a stabilizer claim 6 , water scavenger claim 6 , or odor masking agent.12. The composition of claim 6 , wherein said stabilizer is selected from the group consisting of nitromethane claim 6 , hindered phenols claim 6 , hydroxylamines claim 6 , thiols claim 6 , phosphites and lactones.13. A method of producing cooling claim 6 , said method comprising: evaporating said composition of in the vicinity of a body to be cooled and thereafter condensing said composition.14. A method of producing heat claim 6 , said method comprising: condensing said composition of in the vicinity of a body to be heated and ...

COMPOSITIONS COMPRISING A FLUOROOLEFIN

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents. 15-. (canceled)6. A composition comprising HFC-1234yf , HFC-32 and HFC-125; wherein said HFC-1234yf is present at about 20 weight percent to about 99 weight percent.7. The composition of claim 6 , wherein said HFC-1234yf is present at about 20 weight percent to about 80 weight percent.8. The composition of claim 6 , wherein said HFC-1234yf is present at about 20 weight percent to about 70 weight percent.9. The composition of claim 6 , further comprising a lubricant selected from the group consisting of polyol esters claim 6 , polyalkylene glycols claim 6 , polyvinyl ethers claim 6 , mineral oil claim 6 , alkylbenzenes claim 6 , synthetic paraffins claim 6 , synthetic napthenes claim 6 , and poly(alpha)olefins.10. The composition of claim 6 , further comprising a stabilizer claim 6 , water scavenger claim 6 , or odor masking agent.11. The composition of claim 6 , wherein said stabilizer is selected from the group consisting of nitromethane claim 6 , hindered phenols claim 6 , hydroxylamines claim 6 , thiols claim 6 , phosphites and lactones.12. A method of producing cooling claim 6 , said method comprising: evaporating said composition of in the vicinity of a body to be cooled and thereafter condensing said composition.13. A method of producing heat claim 6 , said method comprising: condensing said composition of in the vicinity of a body to be heated and thereafter evaporating said composition.14. A method for replacing a high GWP refrigerant in a refrigeration claim 6 , air-conditioning claim 6 , or heat pump apparatus claim 6 , wherein said high GWP refrigerant ...

HEAT PUMP APPARATUS

A heat pump apparatus is provided in which refrigerant circulates between an indoor unit and an outdoor unit, wherein the refrigerant is a mixed refrigerant of HFO-1123 and an HFC refrigerant other than HFO-1123, the outdoor unit has a cooling capacity (kW) in the range of 2.2 to 9.5 kW, the outer diameter φ (mm) of a gas pipe between the indoor unit and the outdoor unit and the cooling capacity (kW) of the outdoor unit satisfy the relation (1.00≦outer diameter φ (mm) of gas pipe/cooling capacity (kW) of outdoor unit≦5.77), and the outer diameter φ (mm) of a liquid pipe between the indoor unit and the outdoor unit and the cooling capacity (kW) of the outdoor unit satisfy the relation (0.67≦outer diameter φ (mm) of liquid pipe/cooling capacity (kW) of outdoor unit≦5.77). 1. A heat pump apparatus comprising:an indoor unit;an outdoor unit having a cooling capacity (kW) in the range of 2.2 to 9.5 kW;a refrigerant circulating between the indoor unit and the outdoor unit, the refrigerant being a mixed refrigerant of HFO-1123 and an HFC refrigerant other than HFO-1123;a gas pipe communicating between the indoor unit and the outdoor unit; anda liquid pipe communicating between the indoor unit and the outdoor unit, [{'br': None, '1.00≦an outer diameter φ(mm) of the gas pipe/the cooling capacity (kW) of the outdoor unit≦5.77\u2003\u2003(1)'}, {'br': None, '0.67≦an outer diameter φ(mm) of the liquid pipe/the cooling capacity (kW) the of outdoor unit≦5.77\u2003\u2003(2)'}], 'the gas pipe and the outdoor unit being configured to satisfy the following formula (1), and the liquid pipe and the outdoor unit being configured to satisfy the following formula (2)2. A heat pump apparatus comprising:a plurality of indoor units;at least one outdoor unit having a cooling capacity (kW) of 10 kW or more and less than 40 kW;a refrigerant circulating between the plurality of indoor units and the at least one outdoor unit, the refrigerant being a mixed refrigerant of HFO-1123 and an HFC ...

SYSTEM AND METHOD FOR RETROFITTING A REFRIGERATION SYSTEM FROM HCFC TO HFC REFRIGERANT

A system and method for retrofitting a refrigeration system containing an HCFC refrigerant and a compatible lubricant, with an HFC refrigerant, comprising providing a transport container containing a mixture of about 5-15% by weight of a miscible lubricant and the HFC refrigerant, removing the HCFC refrigerant from the refrigeration system while maintaining at least a portion of a lubricant immiscible with the HFC refrigerant, and charging the refrigeration system with the mixture. 1. A kit for retrofitting a refrigeration system from an HCFC refrigerant mixed with a compressor lubricant consisting of a mineral oil or alkyl benzene lubricant , to an HFC refrigerant compatible with a polyol ester lubricant , comprising:a U.S. Department of Transportation compliant refrigerant transport container; andan HFC refrigerant mixed with a compatible hygroscopic polyol ester compressor lubricant, in an amount of 5-20% by weight of the HFC refrigerant, within the U.S. Department of Transportation compliant transport container.2. The kit according to claim 1 , wherein the HFC refrigerant comprises a blend of difluoromethane (R-32) claim 1 , pentafluoroethane (R-125) claim 1 , and 1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoroethane (R-134a).3. The kit according to claim 1 , wherein the HFC comprises R-407C.4. The kit according to claim 1 , wherein the compatible hygroscopic polyol ester compressor lubricant is present in an amount of 8% by weight of the HFC refrigerant5. The kit according to claim 1 , wherein the compatible hygroscopic polyol ester compressor lubricant is present in an amount of 5-15% by weight of the HFC refrigerant.6. The kit according to claim 1 , wherein the U.S. Department of Transportation compliant refrigerant transport container is compliant at least one of DOT-39 claim 1 , DOT 3 claim 1 , DOT 3A claim 1 , DOT 3AA claim 1 , DOT 3AL claim 1 , DOT 3B claim 1 , DOT 3BN claim 1 , DOT 3E claim 1 , DOT 4B claim 1 , DOT 4BA claim 1 , DOT 4B240ET claim 1 , DOT ...

METHOD FOR SELECTING LUBRICANTS FOR HEAT PUMPS

Provided is a method for selecting a lubricant and a refrigerant for use in a vapor-compression refrigeration device such that the combination of the lubricant and refrigerant produces a fluid system having a lubricant-rich phase and a refrigerant-rich phase, yet exhibits miscible-type properties. 1. A method for selecting a refrigerant and lubricant for a vapor-compression refrigeration device system comprising:a. determining a lower operating temperature range of a vapor-compression refrigeration device;b. determining an upper operating temperature range of the vapor-compression refrigeration device; and{'sub': 2', '5, 'c. selecting a refrigerant comprising at least one Cto Cfluoroalkene at a first concentration and selecting a lubricant comprising at least one polyol ester, polyalkylene glycol, or polyalkylene glycol ester at a second concentration to produce a fluid system having a refrigerant-rich phase and a lubricant-rich phase at a first temperature within said lower operating temperature range and at a second temperature within said upper operating temperature range provided that said second temperature is higher than said first temperature, wherein the refrigerant-rich phase is denser relative to the lubricant-rich phase at said first temperature and wherein the lubricant-rich phase is denser relative to the refrigerant-rich phase at said second temperature, provided that the relative difference in densities between the two phases is less than 20% at said first temperature and less than 20% at said second temperature.'}2. The method of wherein said refrigerant-rich phase and said lubricant-rich phase are liquid and are substantially immiscible with each other at said first and second temperatures.3. The method of wherein said refrigerant has a density within a range of about 0.8 g/cmto about 1.2 g/cmwhen measured at a temperature within a range of about 25° C. to about 50° C. and wherein said lubricant has a density within a range of about 0.7 g/cmto about ...

COMPRESSOR AND REFRIGERATION CYCLE DEVICE USING SAME

A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyol ester oil as a compressor lubricating oil. In addition, a fixed scroll and a revolving scroll each having a spiral lap rising from an end plate, and a compression chamber which is formed by meshing the fixed scroll and the revolving scroll, are provided. In addition, a discharge hole which is provided at a center position of the end plate of the fixed scroll, and is open to a discharge chamber, a bypass hole which is provided in the end plate of the fixed scroll, and communicates with the compression chamber and the discharge chamber at a timing different from a timing at which the compression chamber communicates with the discharge hole, and a check valve which is provided in the bypass hole, and allows a flow from the compression chamber side to the discharge chamber side. 1. A compressor which uses a refrigerant containing 1 ,1 ,2-trifluoroethylene as a working fluid , and uses a polyol ester oil as a compressor lubricating oil , comprising:a fixed scroll and a revolving scroll each having a spiral lap rising from an end plate;a compression chamber which is formed by meshing the fixed scroll and the revolving scroll;a discharge hole which is provided at a center position of the end plate of the fixed scroll, and is open to a discharge chamber;a bypass hole which is provided in the end plate of the fixed scroll, and communicates with the compression chamber and the discharge chamber at a timing different from a timing at which the compression chamber communicates with the discharge hole; anda check valve which is provided in the bypass hole, and allows a flow from a compression chamber side to a discharge chamber side.2. The compressor of claim 1 ,wherein the check valve is a reed valve provided on an end plate surface of the fixed scroll.3. The compressor of claim 1 ,wherein the discharge chamber always communicates with the compression chamber via the ...

HEAT TRANSFER METHODS, SYSTEMS AND COMPOSITIONS

The present invention relates to a refrigerant composition, including difluoromethane (HFC-32), pentafluoroethane (HFC-125), and trifluoroiodomethane (CFI) for use in a heat exchange system, including air conditioning and refrigeration applications and in particular aspects to the use of such compositions as a replacement of the refrigerant R-410A for heating and cooling applications and to retrofitting heat exchange systems, including systems designed for use with R-410A. 1. A heat transfer composition comprising a refrigerant consisting of:from 48% by weight to 51% by weight difluoromethane (HFC-32),11.5%+/−1% by weight pentafluoroethane (HFC-125), andfrom 36.5% by weight to 40.5% by weight trifluoroiodomethane (CF3I), wherein said refrigerant is non-flammable when tested in accordance with ASTM E681-2009 as required in ASHRAE Standard 34-2013 and described in Appendix B1 to ASHRAE Standard 34-2013.2. The heat transfer composition of wherein said CF3I is present in said refrigerant in an amount of about 38.5% by weight.3. The heat transfer composition of wherein said HFC-125 is present in said refrigerant in an amount of 11.5%+/−0.5% by weight.4. The heat transfer composition of wherein said HFC-32 is present in said refrigerant in an amount of about 50% by weight.5. The heat transfer composition of wherein said HFC-32 is present in said refrigerant in an amount of about 50% by weight.6. The heat transfer composition of wherein said HFC-32 is present in said refrigerant in an amount of about 50% by weight.7. The heat transfer composition of further comprising a polyol ester (POE) lubricant.8. A method of cooling air in a heat transfer system of the type having an evaporator claim 1 , a condenser claim 1 , a compressor and heat transfer composition in the system claim 1 , the method comprising: from 48% by weight to 51% by weight difluoromethane (HFC-32),', '11.5% by weight pentafluoroethane (HFC-125), and', 'from about 36.5% by weight to about 40.5% by weight ...

STABILIZED HEAT TRANSFER COMPOSITIONS, METHODS AND SYSTEMS

The present invention relates to heat transfer compositions comprising refrigerant, lubricant and stabilizer, wherein the refrigerant comprises from about 10% by weight to 100% by weight of trifluoroiodomethane (CFI), and wherein said lubricant comprises polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and wherein said stabilizer comprises an alkylated naphthalene and optionally but preferably an acid depleting moiety. 1. A heat transfer compositions comprising refrigerant , lubricant and stabilizer , said refrigerant comprising from about 5% by weight to 100% by weight of trifluoroiodomethane (CFI) , said lubricant comprising polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant , and said stabilizer comprising alkylated naphthalene , wherein said alkylated naphthalene is present in the composition in an amount of from 1% to less than 10% by weight based on the weight of the alkylated naphthalene and the lubricant.2. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1% to 8% by weight based on the weight of the alkylated naphthalene and the lubricant.3. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1.5% to 8% by weight based on the weight of the alkylated naphthalene and the lubricant.4. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1.5% to 6% by weight based on the weight of the alkylated naphthalene and the lubricant.5. The heat transfer composition of wherein said stabilizer further comprises an acid depleting moiety (ADM).6. The heat transfer composition of wherein said stabilizer comprises from about 50% by weight to about 99.9% of alkylated naphthalenes and from 0.05% to about 50% by weight of ADM based on the weight of the stabilizer.7. The heat transfer composition of wherein said stabilizer comprises from about ...

STABILIZED HEAT TRANSFER COMPOSITIONS, METHODS AND SYSTEMS

The present invention relates to heat transfer compositions comprising refrigerant, lubricant and stabilizer, wherein the refrigerant comprises about 49% by weight difluoromethane (HFC-32), about 11.5% by weight pentafluoroethane (HFC-125), and about 39.5% by weight trifluoroiodomethane (CFI), and wherein said lubricant comprises polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and wherein said stabilizer comprises an alkylated naphthalene and optionally but preferably an acid depleting moiety. 1. A heat transfer compositions comprising refrigerant , lubricant and stabilizer , said refrigerant consisting essentially of the following three compounds , with each compound being present in the following relative percentages:about 49% by weight difluoromethane (HFC-32),about 11.5% by weight pentafluoroethane (HFC-125), and{'sub': '3', 'about 39.5% by weight trifluoroiodomethane (CFI), wherein (i) said lubricant comprises polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, (ii) said stabilizer comprises alkylated naphthalene, and (iii) said alkylated naphthalene is present in the composition in an amount of from 1% to less than 10% by weight based on the weight of the alkylated naphthalene and the lubricant.'}2. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1% to 8% by weight based on the weight of the alkylated naphthalene and the lubricant.3. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1.5% to 8% by weight based on the weight of the alkylated naphthalene and the lubricant.4. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1.5% to 6% by weight based on the weight of the alkylated naphthalene and the lubricant.5. The heat transfer composition wherein said lubricant is a PVE lubricant.6. The heat transfer composition ...

STABILIZED HEAT TRANSFER COMPOSITIONS, METHODS AND SYSTEMS

The present invention relates to heat transfer compositions comprising refrigerant, lubricant and stabilizer, wherein the refrigerant comprises 39 to 45% by weight difluoromethane (HFC-32), 1 to 4% by weight pentafluoroethane (HFC-125), and 51 to 57% by weight trifluoroiodomethane (CFI), and wherein said lubricant comprises polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and wherein said stabilizer comprises an alkylated naphthalene and optionally but preferably an acid depleting moiety. 2. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1% to 8% by weight based on the weight of the alkylated naphthalene and the lubricant.3. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1.5% to 8% by weight based on the weight of the alkylated naphthalene and the lubricant.4. The heat transfer composition of wherein said alkylated naphthalene is present in the composition in an amount of from 1.5% to 6% by weight based on the weight of the alkylated naphthalene and the lubricant.5. The heat transfer composition wherein said lubricant is PVE lubricant.6. The heat transfer composition wherein said stabilizer further comprises an acid depleting moiety (ADM).7. The heat transfer composition wherein said stabilizer comprises from about 40% by weight to about 99.9% of alkylated naphthalene and from 0.05% to about 50% by weight of ADM based on the weight of the stabilizer.8. The heat transfer composition of wherein said alkylated naphthalene comprises AN5.9. The heat transfer composition of wherein said stabilizer further comprises a phenol.10. The heat transfer composition of wherein said phenol comprises BHT.11. The heat transfer composition of wherein said stabilizer alkylated naphthalene comprises AN10.12. The heat transfer composition of wherein said stabilizer further comprises a phenol.13. The heat transfer composition ...

ADDITIVE COMPOSITION FOR IMPROVEMENT OF MISCIBILITY OF LUBRICANTS IN AIR-CONDITIONING AND REFRIGERATION SYSTEMS

A lubricant additive for introduction into an AC/R system to improve lubricant miscibility and performance in the AC/R system. 1. A device comprising:a lubricant additive composition including a miscibility agent and a hydrolytic agent, wherein the miscibility agent includes a polyolester.2. The device of claim 1 , wherein the lubricant additive composition includes at least about 30 wt % of the polyolester.3. The device of claim 1 , wherein the hydrolytic agent includes at least one of an orthoester claim 1 , an acetal claim 1 , an epoxide claim 1 , or a carbodiimine.4. The device of claim 1 , wherein the hydrolytic agent includes a triethylorthoformate.5. The device of claim 4 , wherein the lubricant additive composition includes about 20 wt % to about 40 wt % of the triethylorthoformate.6. The device of claim 1 , wherein the lubricant additive composition includes at least one of a fluorescent dye or a performance enhancing agent.7. The device of claim 6 , wherein the performance enhancing agent includes at least one of an antioxidant claim 6 , a thermal stabilizer claim 6 , an anticorrosion additive claim 6 , a metal deactivator claim 6 , an acid neutralizer claim 6 , or an antiwear additive.8. The device of claim 7 , wherein at least one of the antioxidant or the thermal stabilizer includes at least one of a phenol or a phenyl-alphnaphthylamine.9. The device of claim 7 , wherein the anticorrosive agent includes an alkenyl sucking acid derivative.10. The device of claim 7 , wherein the anticorrosive agent includes a phosphate ester.11. The device of claim 1 , wherein the lubricant additive composition includes a metal deactivator additive.12. The device of claim 11 , wherein the metal deactivator additive includes a tolutriazole.13. The device of claim 7 , wherein the acid neutralizer includes at least one of a metal alkoxide claim 7 , a carbodiimide claim 7 , a glycidyl ether claim 7 , an epoxide claim 7 , an alkanolamine claim 7 , an arylamine claim 7 , an ...

HEAT TRANSFER FLUID

Compositions which are based on tetrafluoropropene and more particularly relates to compositions inclduing 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. The compositions may include 60% to 79% by weight of 2,3,3,3-tetrafluoropropene and 21% to 40% by weight of a compound selected from difluoroethane and difluoromethane. 112-. (canceled)13. A heat transfer fluid comprising:60% to 90% by weight of 2,3,3,3-tetrafluoropropene; and10% to 40% by weight of a mixture of difluoromethane and 1,1-difluoroethane.14. The heat transfer fluid of comprising:60% to 79% by weight of 2,3,3,3-tetrafluoropropene; and21% to 40% by weight of a mixture of difluoromethane and 1,1-difluoroethane.15. The heat transfer fluid of comprising:60% to 70% by weight of 2,3,3,3-tetrafluoropropene; and30% to 40% by weight of a mixture of difluoromethane and 1,1-difluoroethane.16. The heat transfer fluid of comprising:60% to 65% by weight of 2,3,3,3-tetrafluoropropene; and35% to 40% by weight of a mixture of difluoromethane and 1,1-difluoroethane.17. A composition comprising the heat transfer fluid of and a stabilizer selected from the group consisting of nitromethane claim 13 , ascorbic acid claim 13 , terephthalic acid claim 13 , azoles claim 13 , phenolic compounds claim 13 , epoxides claim 13 , phosphites claim 13 , phosphates claim 13 , phosphonates claim 13 , thiols and lactones.18. The composition of claim 17 , wherein the stabilizer represents at most 5% by weight relative to the heat transfer fluid.19. A composition comprising the heat transfer fluid of and a lubricant selected from the group consisting of mineral oil claim 13 , alkylbenzene claim 13 , polyalkylene glycol and polyvinyl ether.20. A composition comprising the heat transfer fluid of and a stabilizer selected from the group consisting of nitromethane claim 16 , ascorbic acid claim 16 , ...

COMPRESSOR AND REFRIGERATION CYCLE DEVICE USING SAME

A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyvinyl ether oil as a compressor lubricating oil. In addition, a fixed scroll and a revolving scroll each having a spiral lap rising from an end plate, and a compression chamber which is formed by meshing the fixed scroll and the revolving scroll, are provided. In addition, a discharge hole which is provided at a center position of the end plate of the fixed scroll, and is open to a discharge chamber, a bypass hole which is provided in the end plate of the fixed scroll, and communicates with the compression chamber and the discharge chamber at a timing different from a timing at which the compression chamber communicates with the discharge hole, and a check valve which is provided in the bypass hole, and allows a flow from the compression chamber side to the discharge chamber side. 1. A compressor which uses a refrigerant containing 1 ,1 ,2-trifluoroethylene as a working fluid , and uses a polyvinyl ether oil as a compressor lubricating oil , comprising:a fixed scroll and a revolving scroll each having a spiral lap rising from an end plate;a compression chamber which is formed by meshing the fixed scroll and the revolving scroll;a discharge hole which is provided at a center position of the end plate of the fixed scroll, and is open to a discharge chamber;a bypass hole which is provided in the end plate of the fixed scroll, and communicates with the compression chamber and the discharge chamber at a timing different from a timing at which the compression chamber communicates with the discharge hole; anda check valve which is provided in the bypass hole, and allows a flow from a compression chamber side to a discharge chamber side.2. The compressor of claim 1 ,wherein the check valve is a reed valve provided on an end plate surface of the fixed scroll.3. The compressor of claim 1 ,wherein the discharge chamber always communicates with the compression chamber ...

COMPOSITIONS CONTAINING FLUORINE SUBSTITUTED OLEFINS AND METHODS AND SYSTEMS USING SAME

Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents. 1. A method of transferring heat to , or from , a fluid or body , said method comprising contacting said fluid or body with a heat transfer composition comprising a refrigerant comprising HFO-1234ze , wherein the HFO-1234ze is at least 90% by weight transHFO-1234ze.2. The method of wherein the heat transfer composition comprises HFO-1234ze in an amount of 5% to 99% by weight.3. The method of wherein the heat transfer composition comprises HFO-1234ze in an amount of at least about 50% by weight.4. The method of wherein the heat transfer composition comprises HFO-1234ze in an amount of at least about 70% by weight.5. The method of wherein the HFO-1234ze is at least 95% by weight transHFO-1234ze.6. The method of wherein the HFO-1234ze is at least 97% by weight transHFO-1234ze.7. The method of wherein the HFO-1234ze is no more than 10% by weight cisHFO-1234ze.8. The method of wherein the HFO-1234ze is no more than 5% by weight cisHFO-1234ze.9. The method of wherein the HFO-1234ze is no more than 3% by weight cisHFO-1234ze.10. The method of comprising the steps of (1) evaporating the heat transfer composition to produce refrigerant vapor claim 1 , (2) compressing the refrigerant vapor to produce compressed refrigerant vapor claim 1 , (3) condensing the compressed refrigerant vapor to form refrigerant liquid claim 1 , and (4) reducing the pressure of the refrigerant liquid.11. The method of wherein the contacting occurs in an automobile air conditioning system.12. The method of wherein the contacting occurs in a commercial refrigeration system.13. The method of ...

REFRIGERATOR OIL COMPOSITION, AND REFRIGERATION DEVICE

Provided is a refrigerator oil composition for a refrigerant containing an unsaturated fluorinated compound having a carbon-carbon unsaturated bond, which is represented by a general formula (I): CFR, wherein R each independently represents a hydrogen atom, a chlorine atom, a bromine atom, or an iodine atom, and p represents an integer of 1 to 3. The composition contains a base oil (P) including one or more kinds selected from polyvinyl ethers, polyalkylene glycols, copolymers of a poly(oxy)alkylene glycol or a monoether thereof and polyvinyl ethers, and a polyol ester. The kinematic viscosity at 100° C. of the base oil (P) is 2.00 to 50.00 mm/s, and the hydroxyl value thereof is 5.0 mgKOH/g or less. The refrigerator oil composition is excellent in compatibility with a refrigerant containing an unsaturated fluorinated compound having 2 carbon atoms and having a specific atom, and is also excellent in thermal stability. 1. A refrigerator oil composition comprising: {'br': None, 'sub': 2', 'p', '4-p, 'CFR\u2003\u2003(I)'}, '(i) a refrigerant comprising an unsaturated fluorinated compound having a carbon-carbon unsaturated bond, which is represented by formula (I)wherein R at each instance independently represents a hydrogen atom, a chlorine atom, a bromine atom, or an iodine atom, and p represents an integer of 1 to 3; and(ii) a base oil (P) which comprises one or more selected from the group consisting of a polyvinyl ether, a polyalkylene glycol, a copolymer of a poly(oxy)alkylene glycol or a monoether thereof and a polyvinyl ether, and a polyol ester;{'sup': '2', 'wherein the base oil (P) has a kinematic viscosity at 100° C. of 2.00 to 50.00 mm/s and a hydroxyl value of 5.0 mgKOH/g or less.'}3. The refrigerator oil composition according to claim 1 , wherein the base oil (P) comprises the polyvinyl ether claim 1 , and the polyvinyl ether is a polymer which has an alkyl group having 1 to 4 carbon atoms in a side chain thereof.4. The refrigerator oil composition ...

LUBRICATING OIL COMPOSITION FOR REFRIGERATING MACHINES

A lubricating oil composition for refrigerating machines contains a base oil and an additive in a form of a naphthalimide compound. A refrigerant used in a refrigerating machine in which the composition is used is unsaturated hydrofluorocarbon (unsaturated HFC) having a GWP of 1000 or less. When the present lubricating oil composition for refrigerating machines is used in refrigerating equipment such as an open-type automobile air-conditioner, an electric automobile air-conditioner, a gas heat pump, other air-conditioning equipment, a refrigerating machine, a vending machine, a showcase, a water-heating system and a refrigerating/heating system, it is possible to detect the leakage of a refrigerant with a long-lasting stability. Therefore, when an unsaturated fron refrigerant with a poor stability is used in the above-listed equipment, the present lubricating oil composition for refrigerating machines is significantly advantageous. 1a base oil; andan additive in a form of a naphthalimide compound, whereina refrigerant used in a refrigerating machine in which the composition is used is unsaturated hydrofluorocarbon (unsaturated HFC) having a GWP of 1000 or less.. A lubricating oil composition for refrigerating machines comprising: The present invention relates to a lubricating oil composition for refrigerating machines.Air-conditioner systems and cooling systems use a variety of refrigerants, which are likely to leak outside during use. In such a case, a refrigerant-leakage spot needs to be found. Typically, the leakage of the refrigerant is detected simply depending on the presence or absence of bubbles formed of soapy water sprayed onto pipes and joints in the system. These days, a leakage-detecting method using a fluorescent agent has been developed and a refrigerant-leakage-detecting fluorescent agent is sometimes provided in a receiver dryer in a refrigeration cycle in an automobile air-conditioner.According to Patent Literatures 1 and 2, a fluorescence dye ...

REFRIGERATING MACHINE OIL

The present invention provides a refrigerating machine oil including a lubricating base oil and a compound represented by the following formula (A): 2. The refrigerating machine oil according to claim 1 , comprising at least one oxygen-containing oil selected from the group consisting of esters and ethers claim 1 , as the lubricating base oil.3. The refrigerating machine oil according to claim 1 , further comprising an epoxy compound.4. The refrigerating machine oil according to claim 3 , comprising at least one selected from the group consisting of glycidyl ether-based epoxy compounds claim 3 , glycidyl ester-based epoxy compounds claim 3 , oxirane compounds claim 3 , alkyl oxirane compounds claim 3 , alicyclic epoxy compounds claim 3 , epoxidized fatty acid monoesters claim 3 , and epoxidized plant oils claim 3 , as the epoxy compound.5. The refrigerating machine oil according to claim 3 , comprising at least one selected from the group consisting of glycidyl ether-based epoxy compounds claim 3 , glycidyl ester-based epoxy compounds claim 3 , and alicyclic epoxy compounds claim 3 , as the epoxy compound.6. The refrigerating machine oil according to claim 1 , wherein the polar group has an oxygen atom. The present invention relates to a refrigerating machine oil.Refrigerating machines such as refrigerators, car air-conditioners, room air-conditioners, and automatic vending machines have compressors for circulating refrigerants through their refrigerating cycles. These compressors are filled with refrigerating machine oils for lubricating slide members. Refrigerating machine oils are required to have properties such as antiwear property and stability.Refrigerating machine oils generally contain lubricating base oils and additives which are selected depending on the aforementioned required properties. Conventionally, orthophosphate esters, acid phosphate esters, and the like are used as additives (antiwear agents) for improving antiwear property (for example, see ...

Azeotrope to azeotrope-like composition containing 1-chloro-3,3,3-trifluoropropene and 1,1,1,3,3-pentafluoropropane

The problem to be solved by the present invention is to provide a novel mixed refrigerant that can be an alternative for HCFC-123, has a low ODP and a low GWP, has a COP equal to that of HCFC-123, and has a refrigerating capacity and gas density higher than those of single refrigerants, such as HCFO-1233zd(E) and HFC-245fa, which are being considered as alternative refrigerants for HCFC-123. A composition comprising a refrigerant, wherein the refrigerant comprises HCFO-1233zd(E) and HFC-245fa, and has a mass ratio of HCFO-1233zd(E) to HFC-245fa of 18:82 to 49:51 is provided as a means for solving the above problem.

COMPOSITION CONTAINING MIXTURE OF FLUORINATED HYDROCARBONS, AND METHOD FOR PRODUCING SAME

This invention provides, as alternative refrigerants for R404A, a refrigerant and refrigerant composition that have, for example, a nonflammability similar to that of R404A, a refrigerating capacity that can replace that of R404A, a ratio of refrigerating capacity to power consumed in a refrigeration cycle (coefficient of performance (COP)) that is equal or superior to that of R404A, and a lower GWP than that of R404A. 1. A composition comprising a mixture containing fluorinated hydrocarbons , the mixture comprising difluoromethane (R32) , pentafluoroethane (R125) , and 1 ,1 ,1 ,2-tetrafluoroethane (R134a) in amounts such that the sum of the concentrations thereof is 99.5 wt % or more , the composition ratio of the fluorinated hydrocarbons contained in the mixture falling within a triangle having the following three points as vertices in a ternary composition diagram in which the sum of the concentrations of R32 , R125 , and R134a is 100 wt %:point A (R32/R125/R134a=37.3/17.0/45.7 wt %),point F (R32/R125/R134a=30.7/10.9/58.4 wt %), andpoint G (R32/R125/R134a=29.4/14.1/56.5 wt %),the mixture being an alternative refrigerant for R404A that is a mixed refrigerant.2. The composition comprising a mixture containing fluorinated hydrocarbons according to claim 1 , wherein the composition ratio of the fluorinated hydrocarbons contained in the mixture falls within a quadrilateral having the following four points as vertices in a ternary composition diagram in which the sum of the concentrations of R32 claim 1 , R125 claim 1 , and R134a is 100 wt %:point B (R32/R125/R134a=34.0/13.9/52.1 wt %),point C (R32/R125/R134a=33.3/15.5/51.2 wt %),point E (R32/R125/R134a=31.7/14.9/53.4 wt %), andpoint D (R32/R125/R134a=32.7/12.8/54.5 wt %).3. The composition comprising a mixture containing fluorinated hydrocarbons according to claim 1 , wherein the composition ratio of the fluorinated hydrocarbons contained in the mixture falls within a triangle having the following three points as ...

SYSTEM AND METHOD FOR RETROFITTING A REFRIGERATION SYSTEM FROM HCFC TO HFC REFRIGERANT

A system and method for retrofitting a refrigeration system containing an HCFC refrigerant and a compatible lubricant, with an HFC refrigerant, comprising providing a transport container containing a mixture of a miscible lubricant and the HFC refrigerant, removing the HCFC refrigerant from the refrigeration system while maintaining at least a portion of a lubricant immiscible with the HFC refrigerant, and charging the refrigeration system with the mixture. The polyol ester lubricant may be present in a range exceeding about 5-15% by weight, e.g., 8%. 1. A method of retrofitting a refrigeration system from an HCFC refrigerant and a mineral oil or alkyl benzene lubricant to a refrigerant consisting essentially of an HFC , comprising:removing the HCFC refrigerant while retaining the mineral oil or alkyl benzene lubricant in the refrigeration system; andcharging the refrigeration system with a mixture consisting essentially of the HFC and a polyol ester lubricant in an amount of between 5% and 20% by weight of the HFC, substantially independent of an amount of mineral oil or alkyl benzene lubricant remaining in the refrigeration system.2. The method according to claim 1 , wherein the HFC and the polyol ester lubricant in an amount of between 5% and 20% by weight of the HFC are premixed at a site remote from the refrigeration system claim 1 , prior to removal of the HCFC claim 1 , further comprising transporting the premixed HFC and the polyol ester lubricant in an amount of between 5% and 20% by weight of the HFC in a DOT compliant transport container.3. The method according to claim 2 , wherein the premixed HFC and the polyol ester lubricant in an amount of between 5% and 20% by weight of the HFC in a DOT compliant transport container comprises 8% by weight polyol ester lubricant in HFC claim 2 , in a DOT-39 transport container.4. The method according to claim 1 , wherein said removing and charging are performed substantially without measuring an amount or ...

Refrigerating-Machine Oil Composition and Working Fluid Composition Including Same for Refrigerating Machine

The present invention provides a refrigerating-machine oil composition which comprises the following ester additive (a) and the following ester base oil (b), the content of the ester additive (a) being 5-45 mass % with respect to the total amount of the refrigerating-machine oil composition. Ester additive (a): At least one ester of isotridecanoic acid with pentaerythritol Ester base oil (b): Polyhydric-alcohol esters comprising esters of two or more aliphatic monocarboxylic acids selected from among C4-9 aliphatic monocarboxylic acids with pentaerythritol. 1. A refrigerating machine oil composition comprising the following ester additive (a) and the following ester base oil (b) , whereina content of the ester additive (a) is within a range of 5 to 45% by mass based on a total amount of the refrigerating machine oil composition,the ester additive (a) is an ester of isotridecanoic acid and pentaerythritol, andthe ester base oil (b) is an ester of a polyhydric alcohol, including esters of pentaerythritol and two or more aliphatic monocarboxylic acids selected from aliphatic monocarboxylic acids having 4 to 9 carbon atoms.2. A working fluid composition for refrigerating machines , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the refrigerating machine oil composition according to ; and'}a refrigerant including a hydrofluoroolefin.3. The working fluid composition for refrigerating machines according to claim 2 , wherein the refrigerant including a hydrofluoroolefin is 1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene (HFO-1234ze) or a refrigerant mixture of 1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene (HFO-1234ze) and difluoromethane (HFC-32). The present invention relates to a refrigerating machine oil composition and a working fluid composition for refrigerating machines obtained by using the refrigerating machine oil composition.Recently, in refrigerating machines and the like, hydrofluorocarbons (HFCs) having ozone depletion potentials ...

AIR CONDITIONER

Provided herein is an air conditioner in which the acid scavenger in a refrigeration cycle is maintained over extended time periods of operation to improve reliability. The air conditioner includes a compressor for compressing a refrigerant, an outdoor heat exchanger for causing a heat exchange between the refrigerant and outdoor air, an indoor heat exchanger for causing a heat exchange between the refrigerant and indoor air, and an expansion valve for decompressing the refrigerant. The compressor , the outdoor heat exchanger , the indoor heat exchanger , and the expansion valve are connected to one another with pipes to constitute a refrigeration cycle. The air conditioner uses a refrigerator oil that uses a polyol ester oil as a base oil, and that contains an alkyl glycidyl ether compound having an epoxy group. 1. An air conditioner comprising:a compressor for compressing a refrigerant;an outdoor heat exchanger for causing a heat exchange between the refrigerant and outdoor air;an indoor heat exchanger for causing a heat exchange between the refrigerant and indoor air; andan expansion valve for decompressing the refrigerant,the compressor, the outdoor heat exchanger, the indoor heat exchanger, and the expansion valve being connected to one another with pipes to constitute a refrigeration cycle,wherein the air conditioner uses a refrigerator oil that uses a polyol ester oil as a base oil, and that contains an alkyl glycidyl ether compound having an epoxy group.2. The air conditioner according to claim 1 , wherein the refrigerant contains 70 mass % or more of R32 in the refrigeration cycle.3. The air conditioner according to claim 2 , wherein the alkyl glycidyl ether compound has an alkyl group of 4 to 10 carbon atoms.4. The air conditioner according to claim 3 , wherein the refrigerator oil contains the alkyl glycidyl ether compound in an amount of 0.1 to 1.0 mass %.5. The air conditioner according to claim 1 , wherein the refrigerator oil has a viscosity of 40 mm/ ...

REFRIGERATING MACHINE OIL, AND WORKING FLUID COMPOSITION FOR REFRIGERATING MACHINES

The present invention provides a refrigerating machine oil comprising a base oil; a sulfide compound; and an orthophosphoric acid ester, wherein a content of the sulfide compound is 0.01 to 2.0% by mass and a content of the orthophosphoric acid ester is 0.1 to 5.0% by mass, based on a total amount of the refrigerating machine oil, and the refrigerating machine oil having a kinematic viscosity at 40° C. of 3 to 500 mm/s. 1. A refrigerating machine oil comprising: a polyhydric alcohol comprising pentaerythritol and', 'a fatty acid comprising isobutanoic acid and 3,5,5-trimethylhexanoic acid;, 'a base oil comprising a polyol ester obtainable by synthesis from'}a sulfide compound comprising at least one selected from the group consisting of diphenyl sulfide, dibenzyl sulfide, didecyl sulfide, didodecyl sulfide and thiobisphenol compounds; andan orthophosphoric acid ester comprising at least one selected from the group consisting of triphenyl phosphate, tricresyl phosphate, and an alkylphenyl phosphate having a C3-C4 alkyl group,whereina content of the sulfide compound is 0.01 to 2.0% by mass anda content of the orthophosphoric acid ester is 0.1 to 5.0% by mass, based on a total amount of the refrigerating machine oil, and{'sup': '2', 'the refrigerating machine oil having a kinematic viscosity at 40° C. of 5 to 150 mm/s.'}2. A working fluid composition for a refrigerating machine comprising:a refrigerant; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the refrigerating machine oil according to .'}3. The working fluid composition according to claim 2 , wherein the refrigerant has a global warming potential of 700 or less.4. The working fluid composition according to claim 2 , wherein the refrigerant comprises at least one selected from the group consisting of difluoromethane claim 2 , HFO-1234yf and R600a.5. The working fluid composition according to claim 3 , wherein the refrigerant comprises difluoromethane.6. The working fluid composition according to claim 3 , ...

HEAT TRANSFER FLUID

Compositions which are based on tetrafluoropropene and more particularly relates to compositions including 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. The compositions may include 60% to 79% by weight of 2,3,3,3-tetrafluoropropene and 21% to 40% by weight of a compound selected from difluoroethane and difluoromethane. 1. A method of replacing R22 in a heat pump or air conditioner , the method comprising replacing a first heat transfer fluid of R22 with a second heat-transfer fluid comprising a composition consisting of 60% to 80% by weight of 2 ,3 ,3 ,3-tetrafluoropropene and 20% to 40% by weight of difluoromethane , and optionally a stabilizer.2. The method as claimed in claim 1 , wherein the composition consists of 60% to 70% by weight of 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene and 30% to 40% by weight of difluoromethane claim 1 , and optionally a stabilizer.3. The method as claimed in claim 1 , wherein the composition consists of 65% to 70% by weight of 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene and 30% to 35% by weight of difluoromethane claim 1 , and optionally a stabilizer.4. The method as claimed in claim 1 , wherein the composition consists of 75% to 80% by weight of 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene and 20% to 25% by weight of difluoromethane claim 1 , and optionally a stabilizer.5. (canceled)6. (canceled)7. The method as claimed in claim 1 , wherein the composition consists of 60% by weight of 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene and 40% of difluoromethane claim 1 , and optionally a stabilizer.8. The method as claimed in claim 1 , wherein the composition further contains the stabilizer.9. The method as claimed in claim 8 , wherein the stabilizer is selected from the group consisting of nitromethane claim 8 , ascorbic acid claim 8 , terephthalic ...

REFRIGERATING MACHINE OIL, AND WORKING FLUID COMPOSITION FOR REFRIGERATING MACHINES

The present invention provides a refrigerating machine oil comprising, as a base oil, a polymer having a structural unit represented by the following formula (1): 2. The refrigerating machine oil according to claim 1 , wherein —ORin the formula (1) is represented by the following formula (2):{'br': None, 'sup': 5', '6, 'sub': 'm', '—O(RO)R\u2003\u2003(2)'}{'sup': 5', '6', '5, 'wherein Rrepresents a divalent hydrocarbon group or a divalent hydrocarbon group containing an ether-bond oxygen atom; Rrepresents a hydrocarbon group; and m represents an integer of 0 or more; with the proviso that if m is 2 or more, a plurality of Rmay be the same as or different from each other.'}4. The working fluid composition for a refrigerating machine according to claim 3 , wherein —ORin the formula (1) is represented by the following formula (2):{'br': None, 'sup': 5', '6, 'sub': 'm', '—O(RO)R\u2003\u2003(2)'}{'sup': 5', '6', '5, 'wherein Rrepresents a divalent hydrocarbon group or a divalent hydrocarbon group an ether-bond oxygen atom; Rrepresents a hydrocarbon group; and m represents an integer of 0 or more; with the proviso that if m is 2 or more, a plurality of Rmay be the same as or different from each other.'}56-. (canceled) The present invention relates to a refrigerating machine oil, a working fluid composition for a refrigerating machine, use of a composition containing a polymer as a base oil for a refrigerating machine oil or a working fluid composition for a refrigerating machine and use of a polymer for manufacturing a refrigerating machine oil or a working fluid composition for a refrigerating machine.Recently, destruction of the ozone layer has been concerned. Due to this problem, CFC (chlorofluorocarbons) and HCFC (hydrochlorofluorocarbons) conventionally used as refrigerants for refrigerating machines become subjects to regulation and alternatively HFC (hydrofluorocarbons) has been increasingly used as a refrigerant. In addition, refrigerants having a lower global ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The working fluid has a low global warming potential and can replace R410A. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and an aniline point of at least −100° C. and at most 0° C. 1. A composition for a heat cycle system , comprising:a working fluid for heat cycle containing difluoromethane as a saturated fluorinated hydrocarbon compound, trifluoroethylene and 2,3,3,3-tetrafluoropropene as unsaturated fluorinated hydrocarbon compounds, and optionally at least one other unsaturated fluorinated hydrocarbon compound containing at least one carbon-carbon unsaturated bond and represented by formula (I), and {'br': None, 'sub': x', 'y', 'z, 'CFR\u2003\u2003(I)'}, 'a refrigerant oil having a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and an aniline point temperature of at least −100° C. and at most 0° C.wherein R is H or Cl, x is an integer of from 2 to 6, y is an integer of from 1 to 12, and z is an integer of from 0 to 11, provided that 2x≥y+z≥2.2. The composition according to claim 1 , wherein the working fluid contains the other unsaturated fluorinated hydrocarbon compound of the formula (I) with x being 2 or 3.3. The composition according to claim 2 , wherein the other unsaturated fluorinated hydrocarbon compound is at least one selected from the group consisting of 1 claim 2 ,2-difluoroethylene claim 2 , 2-fluoropropene claim 2 , 1 claim 2 ,1 claim 2 ,2-trifluoropropene claim 2 , (E)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (Z)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (E)-1 claim 2 ,3 ...

FLUORINATED ALKENE REFRIGERANT COMPOSITIONS

Liquid compositions for use in compression refrigeration, air-conditioning and heat pump systems in which a fluoroalkene containing from 3 to 4 carbon atoms and at least 1 but no more than 2 double bonds is combined with an effective amount to provide lubrication of an essentially miscible organic lubricant comprised of carbon, hydrogen and oxygen and having a ratio of oxygen to carbon effective to provide a degree of miscibility with said fluoroalkene so that when up to five weight percent of lubricant is added to said fluoroalkene the refrigerant has one liquid phase at at least one temperature between −40 and +70° C. Methods for producing refrigeration and heating with the fluoroalkenes, alone or in combination with the disclosed lubricants, are also disclosed. 1. A liquid composition for use in compression refrigeration , air-conditioning and heat pump systems comprising:(A) a fluoroalkene containing from 3 to 4 carbon atoms and at least 1 but no more than 2 double bonds; and(B) an effective amount to provide lubrication of an essentially miscible organic lubricant comprised of carbon, hydrogen and oxygen and having a ratio of oxygen to carbon effective to provide a degree of miscibility with said fluoroalkene so that when up to five weight percent of lubricant is added to said fluoroalkene the mixture has one liquid phase at at least one temperature between −40 and +70° C.2. The composition of claim 1 , wherein the mixture has one liquid phase when up to five weight percent of lubricant is added to said fluoroalkene.3. The composition of claim 2 , wherein the mixture has one liquid phase when up to 20 weight percent of lubricant is added to said fluoroalkene.4. The composition of claim 3 , wherein the mixture has one liquid phase in all proportions of fluoroalkene and lubricant.5. The composition of claim 1 , wherein the mixture has one liquid phase over essentially the entire temperature range.6. The composition of claim 1 , wherein said lubricant is selected ...

FLUORINATED ALKENE REFRIGERANT COMPOSITIONS

Liquid compositions for use in compression refrigeration, air-conditioning and heat pump systems in which a fluoroalkene containing from 3 to 4 carbon atoms and at least 1 but no more than 2 double bonds is combined with an effective amount to provide lubrication of an essentially miscible organic lubricant comprised of carbon, hydrogen and oxygen and having a ratio of oxygen to carbon effective to provide a degree of miscibility with said fluoroalkene so that when up to five weight percent of lubricant is added to said fluoroalkene the refrigerant has one liquid phase at least one temperature between −40 and +70° C. Methods for producing refrigeration and heating with the fluoroalkenes, alone or in combination with the disclosed lubricants, are also disclosed. 1. A liquid composition for use in compression refrigeration , air-conditioning and heat pump systems comprising:(A) a fluoroalkene containing from 3 to 4 carbon atoms and at least 1 but no more than 2 double bonds; and(B) an effective amount to provide lubrication of an essentially miscible organic lubricant comprised of carbon, hydrogen and oxygen and having a ratio of oxygen to carbon effective to provide a degree of miscibility with said fluoroalkene so that when up to five weight percent of lubricant is added to said fluoroalkene the mixture has one liquid phase at least one temperature between −40 and +70° C.2. The composition of claim 1 , wherein the mixture has one liquid phase when up to five weight percent of lubricant is added to said fluoroalkene.3. The composition of claim 2 , wherein the mixture has one liquid phase when up to 20 weight percent of lubricant is added to said fluoroalkene.4. The composition of claim 3 , wherein the mixture has one liquid phase in all proportions of fluoroalkene and lubricant.5. The composition of claim 1 , wherein the mixture has one liquid phase over essentially the entire temperature range.6. The composition of claim 1 , wherein said lubricant is selected from ...

REFRIGERATION OIL AND WORKING FLUID COMPOSITION FOR REFRIGERATION OIL

The present invention provides a refrigerating machine oil comprising: a base oil comprising an ester of a polyhydric alcohol and a fatty acid comprising 20 to 100% by mol of a branched fatty acid having 4 to 9 carbon atoms; and 0.2 to 0.5% by mass of a phenol-based antioxidant based on a total amount of the refrigerating machine oil, and the refrigerating machine oil being used with trifluoroethylene refrigerant. 1. A refrigerating machine oil comprising:a base oil comprising an ester of a polyhydric alcohol and a fatty acid comprising 20 to 100% by mol of a branched fatty acid having 4 to 9 carbon atoms; and0.2 to 0.5% by mass of a phenol-based antioxidant based on a total amount of the refrigerating machine oil, andthe refrigerating machine oil being used with trifluoroethylene refrigerant.2. The refrigerating machine oil according to claim 1 , wherein the phenol-based antioxidant comprises 2 claim 1 ,6-di-tert.-butyl-p-cresol.3. A working fluid composition for a refrigerating machine claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the refrigerating machine oil according to ; and'}trifluoroethylene refrigerant.4. The working fluid composition for a refrigerating machine according to claim 3 , wherein the phenol-based antioxidant comprises 2 claim 3 ,6-di-tert.-butyl-p-cresol. The present invention relates to a refrigerating machine oil and a working fluid composition for a refrigerating machine.CFC (chlorofluorocarbon) and HCFC (hydrochlorofluorocarbon), which have been conventionally used as refrigerants for refrigeration equipment, have been subject to regulation due to the problem of recent ozone layer depletion, and HFCs (hydrofluorocarbons) have been increasingly used as refrigerants instead of them. Among HFC refrigerants, however, HFC-134a normally used as a refrigerant for a car air-conditioner is subject to regulation in Europe because the global warming potential (GWP) is high while the ozone layer depletion potential (ODP) is ...

HEAT TRANSFER METHODS, SYSTEMS AND COMPOSITIONS

Disclosed are refrigerants comprising at least about 97% by weight of a blend of three compounds, said blend consisting of: 1. A heat transfer composition comprising at least about 40% by weight of refrigerant and a stabilizer for said refrigerant , wherein said refrigerant comprises at least about 97% by weight of a blend of the following four compounds , with the following percentages being based on the total weight of the following four compounds:from about 40% by weight to about 49% by weight difluoromethane (HFC-32),from about 6% by weight to about 12% by weight pentafluoroethane (HFC-125),{'sub': '3', 'from about 33% by weight to about 40% by weight trifluoroiodomethane (CFI); and'}from about 2% by weight to about 12% by weight of trans 1,3,3,3-tetrafluoropropene (trans HFO-1234ze), provided that the refrigerant is substantially free of CO2.2. The heat transfer composition of wherein together said HFC-32 claim 1 , said HFC-125 claim 1 , said CF3I and said transHFO-1234ze comprise at least about 98.5% by weight of said refrigerant.3. The heat transfer composition of wherein together said HFC-32 claim 1 , said HFC-125 claim 1 , said CF3I and said transHFO-1234ze comprise at least about 99.5% by weight of said refrigerant.4. The heat transfer composition of wherein said refrigerant comprises:from about 46.5% by weight to about 48.5% by weight difluoromethane (HFC-32),from about 10.5% by weight to about 12% by weight pentafluoroethane (HFC-125),{'sub': '3', 'from about 34.5% by weight to about 36.5% by weight trifluoroiodomethane (CFI); and'}from about 2% by weight to about 5% by weight of trans 1,3,3,3-tetrafluoropropene (trans HFO-1234ze).5. The heat transfer composition of wherein said refrigerant comprises:about 47.5% by weight difluoromethane (HFC-32),about 12% by weight pentafluoroethane (HFC-125),{'sub': '3', 'about 36.5% by weight trifluoroiodomethane (CFI); and'}about 4% by weight of trans 1,3,3,3-tetrafluoropropene (trans HFO-1234ze).6. The heat transfer ...

LUBRICANT FOR COMPRESSION TYPE REFRIGERATING MACHINES

The present invention is a lubricating oil for compression-type refrigerators using a difluoromethane (R32) refrigerant. The lubricating oil for compression-type refrigerators contains a first polyvinyl ether compound that is a polymer having a structural unit of a specific structure and has a carbon/oxygen molar ratio of from 3.0 to less than 4.0. 211-. (canceled) The present invention relates to a lubricating oil for compression-type refrigerators and, more specifically, to a lubricating oil for compression-type refrigerators using a difluoromethane (R32) refrigerant and a method for producing it, to a composition for compression-type refrigerators, as well as to a compression-type refrigeration apparatus using it.Heretofore, in a refrigerator, for example, a compression-type refrigeration cycle comprising a compressor, a condenser, an expansion valve and an evaporator, HFCs (hydrofluorocarbons), for example, 1,1,1,2-tetrafluoroethane (R134a) as well as other various types of so-called alternatives for chlorofluorocarbons that are free from environmental pollution have been used as refrigerants. However, such HFCs also involve some problems in that their risk of global warming is high, and recently, use of refrigerants free from such problems has become taken into consideration.As refrigerants having few influences on global warming, R32 (difluoromethane) refrigerant has also been taken into consideration as an alternative refrigerant, in addition to carbonic acid gas (carbon dioxide), ammonia, hydrocarbon gas.For example, carbonic acid gas (carbon dioxide) is harmless to the environments, but has problems in that the pressure thereof is high as compared with that of HFC, etc. Use of ammonia and hydrocarbons is not still popular from the viewpoint of toxicity and flammability thereof.On the other hand, R32 refrigerant is excellent in point of the performance thereof as a refrigerant in that the global warming coefficient of R32 refrigerant is lower than that of ...

COMPOSITIONS COMPRISING A FLUOROOLEFIN

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents. 15-. (canceled)6. A composition comprising HFC-1234yf and HFC-152a.7. The composition of claim 6 , comprising from about 40 to about 99 weight percent HFC-1234yf and about 60 to about 1 weight percent HFC-152a.8. The composition of claim 6 , comprising from about 40 to about 91 weight percent HFC-1234yf and about 60 to about 9 weight percent HFC-152a.9. The composition of claim 6 , further comprising at least one additional compound selected from the group consisting of HFC-32 claim 6 , HFC-134a claim 6 , and HFC-227ea.10. The composition of claim 6 , further comprising a lubricant selected from the group consisting of polyol esters claim 6 , polyalkylene glycols claim 6 , polyvinyl ethers claim 6 , mineral oil claim 6 , alkylbenzenes claim 6 , synthetic paraffins claim 6 , synthetic napthenes claim 6 , and poly(alpha)olefins.11. The composition of claim 6 , further comprising a stabilizer claim 6 , water scavenger claim 6 , or odor masking agent.12. The composition of claim 11 , wherein said stabilizer is selected from the group consisting of nitromethane claim 11 , hindered phenols claim 11 , hydroxylamines claim 11 , thiols claim 11 , phosphites and lactones.13. A method of producing cooling claim 6 , said method comprising: evaporating said composition of in the vicinity of a body to be cooled and thereafter condensing said composition.14. A method of producing heat claim 6 , said method comprising: condensing said composition of in the vicinity of a body to be heated and thereafter evaporating said composition.15. A method for replacing a high GWP ...

Refrigerator Oil, and Working Fluid Composition for Refrigerators

The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): 17-. (canceled)8. A refrigerating machine oil comprising a polyalkylene glycol represented by the following formula (1):{'br': None, 'sup': 1', '3', '2, 'sub': 'n', 'R—(OR)—OR\u2003\u2003(1)'}{'sup': 1', '2', '3, 'wherein Rand Rmay be the same or different from each other and each represents a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, Rrepresents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 600 to 1500;'}{'sup': '3', 'the polyalkylene glycol having a ratio of a weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.13, wherein a ratio of an ethylene group in the alkylene groups represented by Rin the polyalkylene glycol represented by the formula (1) is 30 mol % or less.'}9. The refrigerating machine oil according to claim 8 , wherein Rand Rrepresent a methyl group.10. The refrigerating machine oil according to claim 8 , wherein a flash point of the polyalkylene glycol is 220° C. or more.11. The refrigerating machine oil according to claim 8 , wherein an autoignition point of the polyalkylene glycol is 330° C. or more.12. The refrigerating machine oil according to claim 8 , wherein the number average molecular weight of the polyalkylene glycol is from 1000 to 1500.13. The refrigerating machine oil according to claim 8 , wherein the Mw/Mn of the polyalkylene glycol is from 1.02 to 1.13.14. The refrigerating machine oil according to claim 8 , wherein the Mw/Mn of the polyalkylene glycol is from 1.04 to 1.13.15. A working fluid composition for a refrigerating machine claim 8 , comprising:{'claim-ref': {'@idref': 'CLM-00008', 'claim 8'}, 'the refrigerating machine oil according ...

COMPOSITIONS COMPRISING A FLUOROOLEFIN

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents. 15-. (canceled)6. A composition comprising HFC-1234yf , HFC-32 , and CFI.7. The composition of claim 6 , comprising from about 10 weight percent to about 80 weight percent HFC-1234yf claim 6 , from about 1 weight percent to about 70 weight percent HFC-32 claim 6 , and from about 1 weight percent to about 80 weight percent CFI.8. The composition of comprising:{'sub': '3', 'HFC-1234yf, HFC-32, HFC-134a, and CFI;'}{'sub': '3', 'HFC-1234yf, HFC-32, HFC-125, and CFI;'}{'sub': '3', 'HFC-1234yf, HFC-1225ye, HFC-32, and CFI;'}{'sub': 3', '3, 'HFC-1234yf, HFC-32, NH, and CFI;'}{'sub': '3', 'HFC-1234yf, HFC-1225ye, HFC-32, HFC-134a, and CFI; or'}{'sub': '3', 'HFC-1234yf, HFC-1225ye, HFC-32, HFC-125, and CFI.'}9. The composition of comprising:{'sub': '3', 'from about 5 weight percent to about 70 weight percent HFC-1234yf, from about 5 weight percent to about 80 weight percent HFC-32, from about 1 weight percent to about 70 weight percent HFC-134a, and from about 5 weight percent to about 70 weight percent CFI;'}{'sub': '3', 'from about 10 weight percent to about 80 weight percent HFC-1234yf, from about 5 weight percent to about 70 weight percent HFC-32, from about 10 weight percent to about 80 weight percent HFC-125, and from about 5 weight percent to about 80 weight percent CFI;'}{'sub': '3', 'from about 10 weight percent to about 80 weight percent HFC-1234yf, from about 10 weight percent to about 80 weight percent HFC-1225ye, from about 1 weight percent to about 60 weight percent HFC-32, and from about 1 weight percent to about 60 weight percent CFI;'}{'sub': 3', '3, ' ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A, and a heat cycle system employing the composition. 2. The composition for a heat cycle system according to claim 1 , wherein the compound of the formula (I) wherein x is 2 or 3 is contained.3. The composition for a heat cycle system according to claim 2 , wherein as the unsaturated fluorinated hydrocarbon compound claim 2 , at least one member selected from the group consisting of trifluoroethylene claim 2 , 2 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , 1 claim 2 ,2-difluoroethylene claim 2 , 2-fluoropropene claim 2 , 1 claim 2 ,1 claim 2 ,2-trifluoropropene claim 2 , (E)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (Z)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (E)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , (Z)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene and 3 claim 2 ,3 claim 2 ,3-trifluoropropene is contained.4. The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains a saturated fluorinated hydrocarbon compound.5. The composition for a heat cycle system according to claim 4 , wherein as the saturated fluorinated hydrocarbon compound claim 4 , at least one member selected from the group consisting of trifluoromethane claim 4 , difluoromethane claim 4 , difluoroethane claim 4 , trifluoroethane claim 4 , tetrafluoroethane claim 4 , pentafluoroethane claim 4 , trifluoroiodomethane claim 4 , pentafluoropropane claim 4 , hexafluoropropane claim 4 , heptafluoropropane claim 4 , pentafluorobutane and heptafluorocyclopentane is contained.6. The composition for a heat cycle system according to claim 1 , wherein as the unsaturated fluorinated hydrocarbon compound claim 1 , trifluoroethylene is ...

COMPOSITIONS CONTAINING FLUORINE SUBSTITUTED OLEFINS AND METHODS AND SYSTEMS USING SAME

Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents. 1. A method of transferring heat to , or from , a fluid or body , said method comprising contacting said fluid or body with a heat transfer composition comprising a refrigerant comprising HFO-1234ze and at least one co-refrigerant , wherein the HFO-1234ze is at least 90% by weight transHFO-1234ze.2. The method of wherein the heat transfer composition comprises HFO-1234ze in an amount of at least about 50% by weight.3. The method of wherein the heat transfer composition comprises HFO-1234ze in an amount of at least about 70% by weight.4. The method of wherein the HFO-1234ze is at least 97% by weight transHFO-1234ze.5. The method of wherein the HFO-1234ze is no more than 3% by weight cisHFO-1234ze.6. The method of comprising the steps of (1) evaporating the heat transfer composition to produce refrigerant vapor claim 1 , (2) compressing the refrigerant vapor to produce compressed refrigerant vapor claim 1 , (3) condensing the compressed refrigerant vapor to form refrigerant liquid claim 1 , and (4) reducing the pressure of the refrigerant liquid.7. The method of wherein the contacting occurs in an automobile air conditioning system.8. The method of wherein the contacting occurs in a commercial refrigeration system.9. The method of wherein the contacting occurs in a chiller.10. The method of wherein the contacting occurs in a residential refrigerator.11. The method of wherein the contacting occurs in a residential freezer.12. The method of wherein the contacting occurs in an air conditioning system.13. The method of wherein the contacting occurs in a heat pump. ...

USE OF TETRAFLUOROPROPENE BASED COMPOSITIONS

The invention relates to the use of a composition comprising a polyol ester-based lubricant and a refrigerant F comprising at least one tetrafluoropropene and at least one hydrofluorocarbon, in a heat transfer system containing a vapour compression circuit comprising an oil separator. 1. (canceled)3. The system according to claim 11 , wherein the polyol esters are obtained from a polyol selected from the group consisting of neopentyl glycol claim 11 , glycerol claim 11 , trimethylolpropane claim 11 , pentaerythritol claim 11 , dipentaerythritol claim 11 , tripentaerythritol claim 11 , and mixtures thereof.4. The system according to claim 11 , wherein the polyol esters are obtained from at least one branched carboxylic acid comprising from 5 to 8 carbon atoms.7. The system according to claim 11 , wherein the refrigerant F comprises at least one tetrafluoropropene chosen from HFO-1234yf and HFO-1234ze claim 11 , and at least one hydrofluorocarbon selected from the group consisting of dichloromethane (HFC-32) claim 11 , pentafluoroethane (HFC-125) claim 11 , 1 claim 11 ,1 claim 11 ,2 claim 11 ,2-tetrafluoroethane (HFC-134) claim 11 , 1 claim 11 ,1 claim 11 ,1 claim 11 ,2-tetrafluoroethane (HFC-134a) claim 11 , 1 claim 11 ,1-difluoroethane (HFC-152a) claim 11 , fluoroethane (HFC-161) claim 11 , 1 claim 11 ,1 claim 11 ,1 claim 11 ,2 claim 11 ,3 claim 11 ,3 claim 11 ,3-heptafluoropropane (HFC-227ea) claim 11 , 1 claim 11 ,1 claim 11 ,1-trifluoropropane (HFC-263fb) claim 11 , and mixtures thereof.9. The system according to claim 11 , wherein refrigerant F comprises from 75.5 to 79.5% weight of HFO-1234yf claim 11 , from 12 to 16% weight of HFC-152a claim 11 , and from 6.5 to 10.5% weight of HFC-134a.10. The system according to claim 11 , wherein refrigerant F comprises 77.5% (±0.2%) weight of HFO-1234yf claim 11 , 14% (±0.2%) weight of HFC-152a and 8.5% (±0.2%) weight of HFC-134a claim 11 , said composition being azeotropic at a boiling point of between −40.00° C. and 70. ...

COMPOSITIONS COMPRISING ESTOLIDE COMPOUNDS AND METHODS OF MAKING AND USING THE SAME

Provided herein are compositions comprising at least one estolide compound of formula: 1128-. (canceled)130. The composition of claim 129 , wherein x is 3.131. The composition of claim 130 , wherein y is 12.132. The composition of claim 129 , wherein x is 7.133. The composition of claim 132 , wherein y is 8.134. The composition of claim 133 , wherein Ris an unsubstituted C-Calkyl.135. The composition of claim 134 , wherein Ris saturated.136. The composition of claim 135 , wherein Ris unbranched.137. The composition of claim 133 , wherein Ris an unsubstituted Calkyl that is unbranched.138. The composition of claim 137 , wherein Ris saturated.139. The composition of claim 138 , wherein Ris unbranched.140. The composition of claim 129 , wherein the synthetic compound is purified.141. The composition of claim 140 , wherein the synthetic compound is racemic.142. The composition of claim 140 , wherein the synthetic compound is optically active.143. The composition of claim 140 , wherein the synthetic compound is enantiomerically pure.144. The composition of claim 129 , wherein the at least one additive is selected from an antioxidant claim 129 , a surfactant claim 129 , or a stability enhancer.145. The composition of claim 139 , wherein the synthetic compound is racemic.146. The composition of claim 139 , wherein the synthetic compound is optically active.147. The composition of claim 139 , wherein the synthetic compound is enantiomerically pure.148. The composition of claim 139 , wherein the at least one additive is selected from an antioxidant claim 139 , a surfactant claim 139 , and a stability enhancer. This application claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application No. 61/498,499, filed Jun. 17, 2011, and U.S. Provisional Patent Application No. 61/569,046, filed Dec. 9, 2011, which are incorporated herein by reference in their entireties for all purposes.The present disclosure relates to compositions comprising estolide compounds ...

LUBRICATING OIL COMPOSITION FOR REFRIGERATORS

Provided is a lubricating oil composition for a refrigerator which uses a base oil including as the main component at least one kind of oxygen-containing compounds selected from polyoxyalkylene glycols, polyvinyl ethers, copolymers of poly(oxy)alkylene glycols or monoethers thereof and polyvinyl ethers, polyol esters, and polycarbonates. The lubricating oil composition for a refrigerator is used for a refrigerator that uses, as a refrigerant, a fluorine-containing organic compound, which is a refrigerant applicable to current car air conditioner systems or the like and has a specific polar structure, and has favorable sealing property, a low coefficient of friction factor in a sliding part, and excellent stability as well as excellent compatibility with the refrigerant. 1. A composition refrigerator using comprising: [{'br': None, 'sub': p', 'q', 'r', 's, 'COFR\u2003\u2003(A),'}, 'wherein:', 'R represents H;', 'p represents an integer of 2 to 6;', 'q represents 0', 'r represents an integer of 1 to 12;', 's represents an integer of 0 to 11; and', 'the unsaturated fluorinated hydrocarbon contains one or more carbon-carbon unsaturated bonds; and, '(i) a refrigerant comprising at least one unsaturated fluorinated hydrocarbon represented by formula (A)(ii) a lubricating oil composition for a refrigerator comprising a base oil comprising, as a main component, a polyoxyalkylene glycol.2. The composition according to claim 1 , wherein the refrigerant consists of the unsaturated fluorinated hydrocarbon represented by formula (A).3. The composition according to claim 1 , wherein the unsaturated fluorinated hydrocarbon is a fluorinated derivative of propene.4. The composition according to claim 1 , wherein the polyoxyalkylene glycol is represented by formula (I):{'br': None, 'sup': 1', '2', '3, 'sub': m', 'n, 'R—[(OR)—OR]\u2003\u2003(I)'}wherein:{'sup': '1', 'Rrepresents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an acyl group having 2 to 10 carbon atoms, or ...

FLUORINATED DIESTER COMPOUNDS AND THEIR USE IN HEAT TRANSFER SYSTEM

A compound of formula (I): wherein W is independently selected from the group consisting of H, F, CI, Br, and I; X is independently selected from the group consisting of H, F, CI, Br, and I; Y is independently selected from the group consisting of F, CI, Br, and I; Z is independently selected from the group consisting of H, F, CI, Br, and I; n is an integer from 1 to 8; and n′ is an integer from 1 to 12. 2. A compound according to claim 1 , wherein W is H or F claim 1 , and preferably H.3. A compound according to or wherein X is H or F claim 1 , preferably H.4. A compound according to any one of the preceding claims whereinW is H;X is H;Y is independently selected from the group consisting of F, Cl and I; andZ is independently selected from the group consisting of H, F, Cl and I.5. A compound according to any one of the preceding claims wherein Y is F.6. A compound according to any one of the preceding claims wherein Z is H or F.7. A compound according to any one of the preceding claims wherein n is an integer from 1 to 5.8. A compound according to any one of the preceding claims wherein n′ is an integer from 1 to 10.13. A composition comprising a heat transfer fluid claim 1 , together with one or more compounds as defined in any one of to and/or a composition as defined in .14. A composition according to wherein the heat transfer fluid comprises one or more compounds selected from the group of (hydro)fluoroolefins (HFOs) claim 13 , hydrofluorocarbons (HFCs) claim 13 , chlorofluorocarbons (CFCs) claim 13 , hydrochlorofluorocarbons (HCFCs) and hydrocarbons.15. A composition according to wherein the heat transfer fluid comprises one or more compounds selected from the group of R-1234ze claim 13 , R-1234yf claim 13 , R-1233xf claim 13 , R-1233zd claim 13 , R-1243zf claim 13 , R-134a claim 13 , R-152a claim 13 , R-32 claim 13 , R-161 claim 13 , R-125 claim 13 , R-134 claim 13 , propane claim 13 , propylene claim 13 , carbon dioxide claim 13 , R-245fa claim 13 , R-236fa ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A, and a heat cycle system employing the composition. 2. The composition for a heat cycle system according to claim 1 , wherein the compound of the formula (I) wherein x is 2 or 3 is contained.3. The composition for a heat cycle system according to claim 2 , wherein as the unsaturated fluorinated hydrocarbon compound claim 2 , at least one member selected from the group consisting of trifluoroethylene claim 2 , 2 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , 1 claim 2 ,2-difluoroethylene claim 2 , 2-fluoropropene claim 2 , 1 claim 2 ,1 claim 2 ,2-trifluoropropene claim 2 , (E)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (Z)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (E)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , (Z)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene and 3 claim 2 ,3 claim 2 ,3-trifluoropropene is contained.4. The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains a saturated fluorinated hydrocarbon compound.5. The composition for a heat cycle system according to claim 4 , wherein as the saturated fluorinated hydrocarbon compound claim 4 , at least one member selected from the group consisting of trifluoromethane claim 4 , difluoromethane claim 4 , difluoroethane claim 4 , trifluoroethane claim 4 , tetrafluoroethane claim 4 , pentafluoroethane claim 4 , trifluoroiodomethane claim 4 , pentafluoropropane claim 4 , hexafluoropropane claim 4 , heptafluoropropane claim 4 , pentafluorobutane and heptafluorocyclopentane is contained.6. The composition for a heat cycle system according to claim 1 , wherein as the unsaturated fluorinated hydrocarbon compound claim 1 , trifluoroethylene is ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system having less influence over the ozone layer, having a low global warming potential and having excellent durability, and a heat cycle system. 1. A composition for a heat cycle system comprising a working fluid containing trifluoroethylene and difluoromethane , and a lubricating oil , wherein the interaction distance (Ra) between trifluoroethylene and the lubricating oil as determined from the Hansen solubility parameters is shorter than the interaction distance (Ra) between difluoromethane and the lubricating oil.2. The composition for a heat cycle system according to claim 1 , wherein the difference (Ra-Ra) between the interaction distance (Ra) and the interaction distance (Ra) is at least 1.3. The composition for a heat cycle system according to claim 1 , wherein the lubricating oil is at least one member selected from the group consisting of an ester lubricating oil claim 1 , a polyglycol oil and a fluorinated lubricating oil.4. The composition for a heat cycle system according to claim 1 , wherein the mass ratio of the working fluid to the lubricating oil is from 1/10 to 10/1.5. The composition for a heat cycle system according to claim 1 , wherein the mass ratio (trifluoroethylene/difluoromethane) of trifluoroethylene to difluoromethane in the working fluid is from 1/99 to 99/1 .6. The composition for a heat cycle system according to claim 1 , wherein the proportion of the content of trifluoroethylene in the working fluid is at least 10 mass % based on the entire amount of the working fluid.7. The composition for a heat cycle system according to claim 1 , wherein the total amount of trifluoroethylene and difluoromethane in the working fluid is at least 70 mass % per 100 mass % of the working fluid.8. The composition for a heat cycle system according to claim 1 , wherein the working fluid further contains at least one hydrofluoroolefin selected from 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene claim 1 , ...

Oil Miscible Polyalkylene Glycols And Uses Thereof

A polyalkylene glycol having an end-group of the general formula: 2. The polyalkylene glycol as claimed in claim 1 , which has the general formula:{'br': None, 'sub': x', '2x', 'p', 'y', 'y', 'q', 'z', '2z', 'r, 'sup': '1', 'R[(CHO)(CH2O)(CHO)]R\u2003\u2003(II)'}whereinR is the group of formula I;{'sup': '1', 'sub': 1-20', '1-20, 'Ris a hydrogen atom, a Calkyl group or a Cacyl group, or a group of formula I;'}x is 2; y is 3; and z is an integer from 4 to 8;and each of p, q and r independently is a number from 0 to 350, provided that the total of p, q and r is at least 4.3. The polyalkylene glycol as claimed in claim 1 , in which the number of alkylene oxide monomer units having 4 or more carbon atoms is 0.4. The polyalkylene glycol as claimed in claim 1 , in which the number of alkylene oxide monomer units having 2 carbon atoms is 0.5. The polyalkylene glycol as claimed in claim 1 , in which the number of alkylene oxide monomer units having 3 carbon atoms is from 4 to 50.6. The polyalkylene glycol as claimed in claim 1 , in which one end group of the formula I is present claim 1 , and the or each other end group is H.7. The polyalkylene glycol as claimed in claim 1 , in which m is 2 and one Rrepresents a methyl group and the other Rrepresents a Calkyl group.8. The polyalkylene glycol as claimed in claim 1 , in which n is 1 claim 1 , 2 or 3 and each Ris a methyl group.9. The polyethylene glycol as claimed in claim 1 , in which the end group of formula I is derived from a tocopherol.10. (canceled)11. A lubricating oil composition comprising the polyalkylene glycol as claimed in .12. The lubricating oil composition as claimed in claim 21 , which comprises one or more known additives selected from the group consisting of those that provide improved antiwear properties claim 21 , extreme pressure resistance claim 21 , oxidation stability claim 21 , corrosion inhibition claim 21 , antifoaming claim 21 , suppression of pourpoint claim 21 , improvement of viscosity index ...

Desicating synthetic refrigeration oil composition for fluoro-olefin refrigeration systems

A working fluid for use in a compression refrigeration, air conditioning or heat pump system, is described, which has a refrigerant composed of a fluoro-olefin, and a lubricant which is a mixture of polyol ester and a polyoxyalkylene glycol, and the polyol ester is present in an amount of at least 50% by weight based on the total weight of the polyol ester and the polyoxyalkylene glycol. A lubricant, being a mixture of a polyol ester and a polyoxyalkylene glycol, is described and comprises at least 10% by weight of polyoxyalkylene glycol based on the total weight of the polyol ester and the polyoxyalkylene glycol.

APPARATUS, SYSTEMS AND METHODS FOR LUBRICATION OF FLUID DISPLACEMENT MACHINES

Apparatuses, systems, and methods are provided for the lubrication of fluid displacement machines, in particular positive displacement machines such as twin screw expanders utilized in organic Rankine cycle systems, comprising a working fluid mixed with a lubricant that is neither soluble nor miscible in the liquid phase of the working fluid. 1. A system for lubricating a fluid displacement machine , the system comprising:A. a fluid;B. a fluid displacement machine comprising at least one fluid input and at least one fluid output;C. at least one lubricant that is neither soluble or miscible with the fluid, said lubricant combined with the fluid to form a colloidal fluid mixture flowing through the machine from the at least one fluid input to the at least one fluid output;D. at least one mixture extraction point at which a portion of the mixture is extracted for lubrication purposes; andE. at least one desired point of lubrication in the machine in mixture receiving communication with the mixture extraction point.2. The system of wherein the system pressure at the at least one mixture extraction point is sufficiently higher than the system pressure at the at least one desired point of lubrication such that mixture flows from the at least one mixture extraction point to the at least one desired point of lubrication.3. The system of further comprising at least one lubricant filter disposed between the at least one mixture extraction point and the at least one desired point of lubrication.4. The system of wherein a lubrication pump is disposed between the at least one mixture extraction point and the at least one desired point of lubrication.5. The system of wherein the machine is a screw expander.6. The system of wherein the fluid comprises an HFC refrigerant and the lubricant comprises at least one of a mineral oil claim 1 , an alkylbenzene oil claim 1 , or a solid lubricant additive compound held in colloidal suspension.7. The system of wherein the HFC refrigerant ...

HEAT TRANSFER PROCESS

The use of a refrigerant in organic Rankine cycle systems including at least one hydrofluoroolefin, having at least four carbon atoms represented by the formula (I) R1CH═CHR2 in which R1 and R2 independently represent alkyl groups having from 1 to 6 carbon atoms, substituted with at least one fluorine atom, optionally with at least one chlorine atom. 1. An energy conversion process employing a turbine system having at least one stage comprising successively a step of evaporation of a refrigerant , an expansion step in a turbine , a desuperheating step in an internal exchanger , a step of condensation of said fluid and a step of liquid compression in a pump , characterized in that the refrigerant comprises at least one hydrofluoroolefin having at least 4 carbon atoms represented by formula (I) RCH═CHRin which Rand Rrepresent , independently , alkyl groups having from 1 to 6 carbon atoms , substituted with at least one fluorine atom , optionally with at least one chlorine atom.2. The process as claimed in claim 1 , characterized in that the evaporation temperature is between 60 and 150° C. claim 1 , preferably between 80 and 150° C.3. The process as claimed in claim 1 , characterized in that the refrigerant further comprises at least one compound selected from hydrofluorocarbons claim 1 , hydrocarbons claim 1 , (hydro)fluoroethers claim 1 , hydrochlorofluoropropenes claim 1 , hydrofluoropropenes claim 1 , ethers claim 1 , methyl formate claim 1 , carbon dioxide and trans-1 claim 1 ,2-dichloroethylene.4. The process as claimed in claim 1 , characterized in that the refrigerant comprises at least one hydrofluorocarbon selected from 1 claim 1 ,1 claim 1 ,3 claim 1 ,3 claim 1 ,3-pentafluoropropane and 1 claim 1 ,1 claim 1 ,3 claim 1 ,3 claim 1 ,3-pentafluorobutane.5. The process as claimed in claim 1 , characterized in that the refrigerant comprises at least one hydrofluorocarbon selected from pentane claim 1 , isopentane and cyclopentane.6. The process as claimed in ...

Composition for heat cycle system, and heat cycle system

A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid has a low global warming potential and can replace R410A. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and a kinematic viscosity at 40° C. of from 5 to 200 mm2/s and a kinematic viscosity at 100° C. of from 2 to 30 mm2/s.

LUBRICANT BLENDS TO REDUCE REFRIGERANT SOLUBILITY

Compositions, methods, systems, and applications herein are directed to lubricant blends that balance solubility and viscosity of a refrigerant, where in some cases the lubricant blends herein help reduce solubility of a refrigerant. A lubricant blend includes a mixture of two or more different types of lubricants to reduce refrigerant solubility. 1. A lubricant blend composition , comprising:two or more lubricants, the two or more lubricants includinga first lubricant; anda second lubricant,the first lubricant is present at a higher volume percentage than the second lubricant, the first lubricant includes a higher viscosity than the second lubricant, such that when blended with the second lubricant, the lubricant blend has a resulting viscosity when mixed with a refrigerant, and that exhibits a suitable miscibility and solubility within a desired operating range of a vapor compression system.2. The lubricant blend composition of claim 1 , wherein the first lubricant includes one or more of POE claim 1 , PVE claim 1 , and PAG claim 1 , and the second lubricant includes one or more of alkylbenzene (AB) claim 1 , polyalphaolefin (PAO) claim 1 , mineral oil claim 1 , and estolide.3. The lubricant blend composition of claim 1 , wherein the first lubricant is present at or about 60 to at or about 90 percent by volume of the lubricant blend claim 1 , and the second lubricant is present at or about 10 to at or about 40 percent by volume of the lubricant blend.4. The lubricant blend composition of claim 1 , wherein the first lubricant is present at or about 80 to at or about 90 percent by volume of the lubricant blend claim 1 , and the second lubricant is present at or about 10 to at or about 20 percent by volume of the lubricant blend.5. The lubricant blend composition of claim 1 , wherein the first lubricant is present at or about 80 to at or about 85 percent by volume of the lubricant blend claim 1 , and the second lubricant is present at or about 15 to at or about 20 ...

STABLE 2,3,3,3-TETRAFLUOROPROPENE COMPOSITION

A stable composition (CS) including at least x wt.-% 2,3,3,3-tetrafluoropropene (99.8 ÿ x<100), at most y wt.-% unsaturated compound(s) (Ia) (0 Подробнее

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A and a heat cycle system employing the composition. A composition for a heat cycle system comprising a working fluid for heat cycle containing trifluoroethylene, and a refrigerant oil (for example, an ester refrigerant oil, an ether refrigerant oil, a polyglycol refrigerant oil or a hydrocarbon refrigerant oil), and a heat cycle system employing the composition for a heat cycle system. 1. A composition for a heat cycle system , comprising: a working fluid for heat cycle; and a refrigerant oil , wherein the working fluid for a heat cycle comprises trifluoroethylene (HFO-1123) , difluoromethane (HFC-32) , and (E)-1 ,3 ,3 ,3-tetrafluoropropene (HFO-1234ze(E)) in amounts of:{'br': None, '10 mass %≤HFO-1123≤80 mass %;'}{'br': None, '10 mass %≤HFC-32≤75 mass %; and'}{'br': None, 'i': ze', 'E, '5 mass %≤HFO-1234()≤60 mass %.'}2. The composition for a heat cycle system according to claim 1 , wherein the refrigerant oil is at least one member selected from an ester refrigerant oil claim 1 , an ether refrigerant oil claim 1 , a polyglycol refrigerant oil and a hydrocarbon refrigerant oil.3. The composition for a heat cycle system according to claim 2 , wherein the refrigerant oil is at least one member selected from a dibasic acid ester claim 2 , a polyol ester claim 2 , a complex ester claim 2 , a polyol carbonate ester claim 2 , a polyvinyl ether claim 2 , a polyalkylene glycol and an alkylbenzene.4. The composition for a heat cycle system according to claim 1 , wherein the kinematic viscosity of the refrigerant oil at 40° C. is from 1 to 750 mm/s.5. The composition for a heat cycle system according to claim 1 , wherein the kinematic viscosity of the refrigerant oil at 100° C. is from 1 to 100 mm/s.6. The composition for a heat cycle system according to claim 1 , wherein a ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. 1. A composition for a heat cycle system , which comprises a working fluid for heat cycle containing trifluoroethylene , and a stabilizer for preventing deterioration of the working fluid for heat cycle.2. The composition for a heat cycle system according to claim 1 , wherein the stabilizer is at least one stabilizer selected from an oxidation resistance-improving agent claim 1 , a heat resistance-improving agent and a metal deactivator.3. The composition for a heat cycle system according to claim 2 , wherein the stabilizer is at least one compound selected from the group consisting of a phenol compound claim 2 , an unsaturated hydrocarbon group-containing aromatic compound claim 2 , an aromatic amine compound claim 2 , an aromatic thiazine compound claim 2 , a terpene compound claim 2 , a quinone compound claim 2 , a nitro compound claim 2 , an epoxy compound claim 2 , a lactone compound claim 2 , an orthoester compound claim 2 , a mono- or di-alkali metal salt compound of phthalic acid claim 2 , and a thiodiphenyl ether hydroxide compound.4. The composition for a heat cycle system according to claim 1 , which contains the stabilizer in an amount of at least 1 mass ppm.5. The composition for a heat cycle system according to claim 1 , which further contains a refrigerant oil.6. The composition for a heat cycle system according to claim 5 , wherein the refrigerant oil is at least one member selected from an ester refrigerant oil claim 5 , an ether refrigerant oil claim 5 , a polyglycol oil and a hydrocarbon refrigerant oil.7. The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains at least one member selected from a saturated hydrofluorocarbon.8. The composition for a ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A, and a heat cycle system employing the composition. 2. The composition for a heat cycle system according to claim 1 , wherein the compound of the formula (I) wherein x is 2 or 3 is contained.3. The composition for a heat cycle system according to claim 2 , wherein as the unsaturated fluorinated hydrocarbon compound claim 2 , at least one member selected from the group consisting of trifluoroethylene claim 2 , 2 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , 1 claim 2 ,2-difluoroethylene claim 2 , 2-fluoropropene claim 2 , 1 claim 2 ,1 claim 2 ,2-trifluoropropene claim 2 , (E)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (Z)-1 claim 2 ,2 claim 2 ,3 claim 2 , 3 claim 2 ,3-pentafluoropropene claim 2 , (E)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , (Z)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene and 3 claim 2 ,3 claim 2 ,3-trifluoropropene is contained.4. The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains a saturated fluorinated hydrocarbon compound.5. The composition for a heat cycle system according to claim 4 , wherein as the saturated fluorinated hydrocarbon compound claim 4 , at least one member selected from the group consisting of trifluoromethane claim 4 , difluoromethane claim 4 , difluoroethane claim 4 , trifluoroethane claim 4 , tetrafluoroethane claim 4 , pentafluoroethane claim 4 , trifluoroiodomethane claim 4 , pentafluoropropane claim 4 , hexafluoropropane claim 4 , heptafluoropropane claim 4 , pentafluorobutane and heptafluorocyclopentane is contained.6. The composition for a heat cycle system according to claim 1 , wherein as the unsaturated fluorinated hydrocarbon compound claim 1 , trifluoroethylene is ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A, and a heat cycle system employing the composition. 2. The composition for a heat cycle system according to claim 1 , wherein the compound of the formula (I) wherein x is 2 or 3 is contained.3. The composition for a heat cycle system according to claim 2 , wherein as the unsaturated fluorinated hydrocarbon compound claim 2 , at least one member selected from the group consisting of trifluoroethylene claim 2 , 2 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , 1 claim 2 ,2-difluoroethylene claim 2 , 2-fluoropropene claim 2 , 1 claim 2 ,1 claim 2 ,2-trifluoropropene claim 2 , (E)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (Z)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (E)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , (Z)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene and 3 claim 2 ,3 claim 2 ,3-trifluoropropene is contained.4. The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains a saturated fluorinated hydrocarbon compound.5. The composition for a heat cycle system according to claim 4 , wherein as the saturated fluorinated hydrocarbon compound claim 4 , at least one member selected from the group consisting of trifluoromethane claim 4 , difluoromethane claim 4 , difluoroethane claim 4 , trifluoroethane claim 4 , tetrafluoroethane claim 4 , pentafluoroethane claim 4 , trifluoroiodomethane claim 4 , pentafluoropropane claim 4 , hexafluoropropane claim 4 , heptafluoropropane claim 4 , pentafluorobutane and heptafluorocyclopentane is contained.6. The composition for a heat cycle system according to claim 1 , wherein as the unsaturated fluorinated hydrocarbon compound claim 1 , trifluoroethylene is ...

COMPOSITIONS CONTAINING CHLOROFLUOROOLEFINS OR FLUOROOLEFINS

Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354 having properties highly beneficial in foaming and blowing agent applications, articles and methods. 2. The composition of wherein said one or more compounds in accordance with Formula II consist essentially of 1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoro-1-propene (CF—CH═CHCl.)3. The composition of wherein said composition consists essentially of said mineral oil and said 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoro-1-propene.4. The composition of wherein said 1-chloro-3 claim 3 ,3 claim 3 ,3-trifluoro-1-propene is present in the composition n amount of at least about 20% by weight and said mineral oil is present in the composition in an amount of at least about 20% claim 3 ,5. The composition of wherein said 1-chloro-3.3.3-trifluoro-1-propene is present in the composition amount of at least about 30% by weight.6. The composition of wherein said 1-chloro-3 claim 3 ,3 claim 3 ,3-trifluoro-1-propene is present in the composition in amount of at least about 50% by weight.7. The composition of wherein said mineral oil is present in the composition in an amount of at least about 20%.8. The composition of wherein said 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoro-1-propene is present in the composition in amount of at least about 70% by weight.9. The composition of wherein said composition consists essentially of said mineral oil and said 1-chloro-3 claim 8 ,3 claim 8 ,3-trifluoro-1-propene.10. The composition of wherein said wherein said 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoro-1-propene:mineral oil weight ratio is from about 80:20 to about 20:80.11. The composition of wherein said 1-chloro-3 claim 2 ,3 claim 2 ,3-trifluoro-1-propene and said mineral oil are miscible.12. The composition of wherein said 1-chloro-3 claim 11 ,3 claim 11 ,3-trifluoro-1-propene is present in the composition in amount ...

COMPOSITION INCLUDING DIFLUOROMETHANE (HFC-32), PENTAFLUOROETHANE (HFC-125), AND 1,1,1,2-TETRAFLUOROETHANE (HFC-134A)

The present invention provides a mixed refrigerant having (1) a superior cooling COP compared to R410A, which is an existing alternative refrigerant to R22, and (2) an equal or superior refrigerating effect in comparison with R22, even under conditions of use in which the condensation temperature setting is high, such as at a high outside air temperature. The present invention pertains to a composition containing refrigerants, the refrigerant containing HFC-32, HFC-125, and HFC-134a, the mass ratio of the three components being, in a ternary composition diagram having the three components as respective apexes, in the range of a triangle having the following three points as apexes: 1. A composition comprising refrigerants comprising difluoromethane (HFC32) , pentafluoroethane (HFC125) , and 1 ,1 ,1 ,2-tetrafluoroethane (HFC134a) , the mass ratio of the three components being , in a ternary composition diagram having the three components as respective apexes , in the range of a triangle having the following three points as apexes:point A (HFC32/HFC125/HFC134a=36/25/39 mass %);point B (HFC32/HFC125/HFC134a=36/31/33 mass %); andpoint C (HFC32/HFC125/HFC134a=43/34/23 mass %).2. A composition comprising refrigerants comprising HFC-32 , HFC-125 , and HFC-134a , the mass ratio of the three components being , in a ternary composition diagram having the three components as respective apexes , in the range of a triangle having the following three points as apexes:point A′ (HFC32/HFC125/HFC134a=40/30/30 mass %);point B′(HFC32/HFC125/HFC134a=40/32/28 mass %); andpoint C (HFC32/HFC125/HFC134a=43/34/23 mass %).3. The composition according to further comprising refrigerant oil.4. The composition according to claim 3 , wherein the refrigerant oil is at least one refrigerant oil selected from the group consisting of polyalkylene glycol (PAG) claim 3 , polyol ester (POE) claim 3 , and polyvinyl ether (PVE).5. The composition according to that is used as an alternative refrigerant to ...

FLUORINATED ESTERS AS LUBRICANTS FOR HEAT TRANSFER FLUIDS

The present invention provides compounds of formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br and I; 10 X is independently selected from the group consisting of H, F, Cl, Br, I, CWand OR on the basis that at least one X is OR; R is independently selected from the group consisting of C(O) (CH)(CF)Y and CWC(CWOC(O)(CH)m(CF)nY); m is an integer from 0 to 2; 15 n is an integer from 2 to 8; Y is C(Z); and Z is independently selected from the group consisting of H, F, Cl, Br and I. Such compounds may be utilised as lubricants, for example in heat transfer compositions. 2. A compound according to claim 1 , wherein at least two of the X substituents are OR.3. A compound according to any one of the preceding claims claim 1 , wherein at least three of the X substituents are OR.4. A compound according to any one of the preceding claims claim 1 , wherein all four of the X substituents are OR.5. A compound according to any one of the preceding claims claim 1 , wherein R is C(O)(CH)(CF)Y.6. A compound according to claim 2 , wherein two X substituents are H.7. A compound according to claim 3 , wherein one X substituent is CW.8. A compound according to claim 4 , wherein one R substituent is CWC(CWOC(O)(CH)(CF)Y).9. A compound according to claim 8 , wherein three R substituents are C(O)(CH)(CF)Y.10. A compound according to any one of the preceding claims claim 8 , wherein when m is 0 n is an integer from 5 to 8.11. A compound according to claim 10 , wherein when m is 0 n is an integer of 5 or 6.12. A compound according to any one of the to claim 10 , wherein when m is 1 n is an integer from 4 to 7.13. A compound according to any one of the preceding claims claim 10 , wherein Y is independently selected from the group consisting of CFand CFH.14. A compound according to claim 10 , wherein Y is CF.15. A compound according to claim 10 , wherein Y is CFH and m is 5.16. A compound according to any one of the preceding claims claim 10 , wherein W is ...

HYDROFLUOROCARBON/TRIFLUOROIODOMETHANE/HYDROCARBONS REFRIGERANT COMPOSITIONS

A composition comprising from about 40 weight percent to about 99.9 weight percent of at least one C-chydrofluorocarbon, from about 0.1 weight percent to about 50 weight percent of CF3I, and from about 0.1 weight percent to about 10 weight percent of at least one C-chydrocarbon and the use of these composition for in methods of the recharging of refrigeration systems. 1. A composition comprising:{'sub': '1', '(a) from about 40 weight percent to about 99.8 weight percent of at least one C-C5 hydrofluorocarbon;'}{'sub': '3', '(b) from about 0.1 weight percent to about 50 weight percent of CFI; and'}{'sub': '1', '(c) from about 0.1 weight percent to about 10 weight percent of at least one C-C6 hydrocarbon.'}2. The composition of wherein the at least one C-C5 hydrofluorocarbon is present in an amount of from about 72 weight percent to about 99.8 weight percent.3. The composition of wherein the CFI is present in an amount of from about 0.1 weight percent to about 20 weight percent.4. The composition of wherein the at least one C-C6 hydrocarbon is present in an amount of from about 0.1 weight percent to about 8 weight percent.5. The composition of wherein the at least one C-C5 hydrofluorocarbon is present in an amount of from about 72 weight percent to about 99.8 weight percent; the CFI is present in an amount of from about 0.1 weight percent to about 20 weight percent; and the at least one C-C6 hydrocarbon is present in an amount of from about 0.1 weight percent to about 8 weight percent.6. (canceled)7. The composition of wherein the CFI is present in an amount of from about 0.1 weight percent to about 10 weight percent.8. (canceled)9. (canceled)10. The composition of wherein the at least one C-Chydrofluorocarbon comprises consists essentially of difluoromethane claim 1 , and 1 claim 1 ,1-1 claim 1 ,2- claim 1 ,2-p-entafluoro-ethane.11. (canceled)12. The composition of wherein the at least one C-Chydrofluorocarbon is a combination of 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 ...

Refrigerant with lubricating oil for replacement of r22 refrigerant

An apparatus and method wherein potential ozone layer-damaging chlorodifluoromethane (Refrigerant R-22) is substituted with a mix of less environmentally damaging refrigerants pentafluoroethane and tetrafluoroethane in chlorodifluoromethane-based air-cooling systems mainly in residential cooling. While less environmentally damaging than chlorodifluoromethane, the substitute refrigerant has a temperature-pressure relationship similar to that of chlorodifluoromethane, making the substitute refrigerant suitable for use with chlorodifluoromethane-based air-cooling systems. In this event, it is mixed with a relatively small percentage of a lubricating oil which is compatible with both the unit refrigerant and typical R-22 system design.

REFRIGERATION OIL, AND COMPOSITION FOR USE IN REFRIGERATING MACHINE

A refrigerator oil according to one embodiment of the present invention contains: a base oil containing an oxygen-containing organic compound; a polyphosphate ester compound; and a benzotriazole compound. 1: A refrigerator oil , comprising:a base oil containing an oxygen-containing organic compound;a polyphosphate ester compound; anda benzotriazole compound.2: The refrigerator oil according to claim 1 , wherein a content of the polyphosphate ester compound is from 0.01 to 5.0% by mass based on the total amount of the refrigerator oil.3: The refrigerator oil according to claim 1 , wherein a content of the benzotriazole compound is 0.01% by mass or more based on the total amount of the refrigerator oil.4: The refrigerator oil according to claim 1 , wherein the oxygen-containing organic compound is at least one selected from the group consisting of a polyvinyl ether compound claim 1 , a polyoxyalkylene glycol compound claim 1 , a copolymer of a poly(oxy)alkylene glycol or a monoether thereof and a polyvinyl ether claim 1 , and a polyol ester compound.6: The refrigerator oil according to claim 5 , wherein in the general formula (1) claim 5 , Rcontains an arylene group.10: A composition for a refrigerator claim 1 , the composition comprising a refrigerant and the refrigerator oil according to .11: The composition for a refrigerator according to claim 10 , wherein the refrigerant comprises at least one selected from the group consisting of a fluorinated hydrocarbon claim 10 , carbon dioxide claim 10 , a hydrocarbon claim 10 , and ammonia.12: The composition for a refrigerator according to claim 10 , wherein the refrigerant comprises a saturated fluorinated hydrocarbon compound.13: A method for producing a refrigerator oil claim 10 , the method comprising blending at least a polyphosphate ester compound and a benzotriazole compound with a base oil comprising an oxygen-containing organic compound to obtain a refrigerator oil. The present invention relates to a refrigerator ...

Working fluid composition for refrigerator and refrigeration oil

본 발명은 다가 알코올과 지방산의 에스테르, 카르보디이미드 화합물 및 인 화합물을 함유하는 냉동기유와, 1,1,1,2-테트라플루오로에탄 및 2,3,3,3-테트라플루오로프로펜으로부터 선택되는 적어도 1종의 냉매를 함유하고, 다가 알코올은 펜타에리스리톨 및 디펜타에리스리톨을 함유하고, 지방산은 탄소수 4 내지 9의 지방산으로부터 선택되는 적어도 1종을 함유하고, 카르보디이미드 화합물 및 인 화합물은 식 (1)로 나타나는 조건을 충족시키는, 냉동기용 작동 유체 조성물을 제공한다. [식 1] [N C 는 카르보디이미드 화합물 1분자당 카르보디이미드기의 수, M C 는 카르보디이미드 화합물의 분자량, W C 는 카르보디이미드 화합물의 함유량, N P 는 인 화합물 1분자당 인 원자의 수, M P 는 인 화합물의 분자량, W P 는 인 화합물의 함유량을 나타낸다.] The present invention relates to a refrigerating machine oil comprising a refrigerating machine oil containing an ester of a polyhydric alcohol and a fatty acid, a carbodiimide compound and a phosphorus compound, 1,1,1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene , Wherein the polyhydric alcohol contains pentaerythritol and dipentaerythritol, the fatty acid contains at least one selected from fatty acids having 4 to 9 carbon atoms, the carbodiimide compound and the phosphorus compound Satisfies the condition expressed by the formula (1). [Formula 1] [N C is the number of carbodiimide groups per molecule of the carbodiimide compound, M C is the molecular weight of the carbodiimide compound, W C is the content of the carbodiimide compound, N P is the number of atoms phosphorus per molecule of the phosphorus compound , M P is the molecular weight of the phosphorus compound, and W P is the content of the phosphorus compound.]

Compositions comprising estolide compounds and methods of making and using the same

Provided herein are compositions comprising at least one estolide compound of formula: in which n is an integer equal to or greater than 0; m is an integer equal to or greater than 1; R 1 , independently for each occurrence, is selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; R 2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R 3 and R 4 , independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided are uses of the compositions described herein.

Composition comprising 1-chloro-3,3,3-trifluoropropene

A composition including at least one lubricant including polyol esters and a refrigerant fluid F including 1-chloro-3,3,3-trifluoropropene. Also, a composition including at least one lubricant based on polyol esters and a refrigerant fluid F including 1-chloro-3,3,3-trifluoropropene and at least one C3 to C6 alkene stabilizing compound including a single double bond. Also, different uses of the compositions.

Composition 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-1234A and from 1 to 99% by weight of trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze). The subject of the present application is also the use of said composition in refrigeration, air conditioning and heat pumps.

Low GWP heat transfer compositions

The present invention relates, in part, to heat transfer and refrigerant compositions and methods that include HFC-32; HFO-1234ze and HFC-125.

Process for reducing the total acidity of refrigerating compositions

The present invention relates to a process for reducing the total acidity of refrigerating compositions comprising at least one refrigerant with at least one lubricant, said process comprising at least one stage of bringing said composition into contact with at least one zeolitic adsorbent based on powder formed of zeolite(s) or on agglomerates formed of zeolite(s).

Method of selecting refrigerant-lubricant combinations

The present invention provides methods for selecting refrigerant and lubricant combinations for use in heat transfer cycle systems and provides methods for operating said heat transfer systems. More particularly, the invention provides methods to select lubricant and refrigerant combinations for a heat transfer cycle system wherein at the lower temperatures of the heat transfer cycle the refrigerant and lubricant are miscible and at the upper temperatures of the heat transfer cycle the refrigerant and lubricant are phase separated and such that the density phase inversion temperature of the combination is below the upper operating temperature of the heat transfer cycle.

Method and apparatus for operating a steam cycle process with a lubricated expander

Embodiments of the invention relate to a method for operating a steam cycle process performed in an apparatus having an evaporator or steam generator for the evaporation of a liquid working medium and an expander, which is lubricated by a lubricant, for the performance of mechanical work. The method comprises a) supplying the liquid working medium to the evaporator, in which it evaporates and is fed to the expander in the form of steam; b) supplying an ionic liquid, which at room temperature forms two liquid phases with the liquid working medium, to the expander as a lubricant; and c) separating the ionic liquid forming the lubricant for the expander from the working medium upstream of the evaporator.

Lubricant composition for refrigerating machines, and refrigerating machine

The lubricating oil composition for a refrigerator of the present invention is a lubricating oil composition for a refrigerator that is used in combination with a refrigerant containing at least one fluorine-containing organic compound selected from compounds represented by the following molecular formula (A): C p F r R s   (A) wherein R represents Cl, Br, I, or H; p represents an integer of from 2 to 6; r represents an integer of from 1 to 12; and s represents an integer of from 0 to 11, provided that the molecule contains at least one carbon-carbon unsaturated bond, and the lubricating oil composition for a refrigerator contains a base oil and a cyclic organic compound having a cyclic hydrocarbon structure and having one or more non-conjugated double bond in a cyclic structure or a side chain thereof.

Compositions comprising a fluoroolefin

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

Refrigerant mixtures comprising tetrafluoropropene, difluoromethane, pentafluoroethane, and tetrafluoroethane, and uses thereof

A non-flammable refrigerant mixture is disclosed. The non-flammable refrigerant mixture may include from 20 weight percent to 25.5 weight percent HFO-1234yf, (b) from 20 weight percent to 24.5 weight percent HFC-32, (c) from 24.5 weight percent to 30 weight percent HFC-125, (d) from 25.5 weight percent to 30 weight percent HFC-134a, and optionally (e) from about 0.0001 weight percent to 10 weight percent trans-HFO-1234ze. These refrigerant mixtures are useful as components in compositions also containing non-refrigerant components (e.g., lubricants), in processes to produce cooling, in methods for replacing refrigerants R-404A, R-507, R-407A, R-407C, R-407F and/or R-22, and in refrigeration apparatuses.

Composition for heat cycle system, and heat cycle system

A composition for a heat cycle system comprising a working fluid containing trifluoroethylene and difluoromethane, and a lubricating oil, wherein the interaction distance (Ra1123) between trifluoroethylene and the lubricating oil as determined from the Hansen solubility parameters is shorter than the interaction distance (Ra32) between difluoromethane and the lubricating oil.

Lubricant composition for refrigerating machine and compressor using the same

A lubricating oil composition for refrigerator including a base oil and an acid scavenger, and a compressor using the composition are provided, where the acid scavenger is a polyalkylene glycol derivative represented by a formula (1) as follows: R 1 —[(OR 2 ) e —OR 3 ] f   (1) and the base oil is at least one compound selected from a group consisting of polyvinyl ether, polyalkylene glycol and an ether-base compound represented by a formula (2) as follows, R a -[(OR b ) n -(X)—(OR c ) k]x -R d   (2) where meanings of respective signs are as described in the specification.

Composition for heat cycle system, and heat cycle system

A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid has a low global warming potential and can replace R410A. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and a kinematic viscosity at 40° C. of from 5 to 200 mm2/s and a kinematic viscosity at 100° C. of from 2 to 30 mm2/s.

Additive composition for improvement of miscibility of lubricants in air-conditioning and refrigeration systems

A lubricant additive for introduction into a AC/R system to improve lubricant miscibility and performance in the AC/R system.

Composition for heat cycle system, and heat cycle system

A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The working fluid has a low global warming potential and can replace R410A. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and an aniline point of at least −100° C. and at most 0° C.