Composition for heat cycle system, and heat cycle system
US-2020010777-A1 · Jan 9, 2020 · US
Working fluid, freezer, and freezer oil
US2024018437A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024018437-A1 |
| Application number | US-202118038540-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 26, 2021 |
| Priority date | Nov 30, 2020 |
| Publication date | Jan 18, 2024 |
| Grant date | — |
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- Title
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Abstract
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A working fluid filled in a refrigerant circulation system comprising a compressor, a condenser, an expansion mechanism, an evaporator, and an accumulator, the working fluid comprising: a refrigerant; and a refrigerating machine oil, wherein the refrigerant comprises a hydrocarbon refrigerant having 2 to 4 carbon atoms, the refrigerating machine oil has a mixed aniline point of 20° C. or higher and 50° C. or lower and a viscosity index of 110 or more, an amount of the refrigerant dissolved in the working fluid is 40% by mass or less under conditions of a temperature of 80° C. and an absolute pressure of 2.8 MPa, and the refrigerating machine oil has a kinematic viscosity at −10° C. of 200 mm2/s or more and 3000 mm2/s or less.
First claim
Opening claim text (preview).
1 . A working fluid filled in a refrigerant circulation system comprising a compressor, a condenser, an expansion mechanism, an evaporator, and an accumulator, the working fluid comprising: a refrigerant; and a refrigerating machine oil, wherein the refrigerant comprises a hydrocarbon refrigerant having 2 to 4 carbon atoms, the refrigerating machine oil has a mixed aniline point of 20° C. or higher and 50° C. or lower and a viscosity index of 110 or more, an amount of the refrigerant dissolved in the working fluid is 40% by mass or less under conditions of a temperature of 80° C. and an absolute pressure of 2.8 MPa, and the refrigerating machine oil has a kinematic viscosity at −10° C. of 200 mm 2 /s or more and 3000 mm 2 /s or less. 2 . The working fluid according to claim 1 , wherein the refrigerating machine oil has a kinematic viscosity at −20° C. of 10000 mm 2 /s or less. 3 . The working fluid according to claim 1 , wherein refrigerating machine oil has a flash point of 250° C. or higher. 4 . The working fluid according to claim 1 , wherein the refrigerating machine oil comprises a phosphorus-containing antiwear agent. 5 . The working fluid according to claim 1 , wherein an amount of the refrigerant dissolved in the working fluid is 15% by mass or less under conditions of a temperature of 40° C. and an absolute pressure of 0.7 MPa. 6 . A refrigerating machine comprising a refrigerant circulation system comprising a compressor, a condenser, an expansion mechanism, an evaporator, and an accumulator, wherein the refrigerant circulation system is filled with a working fluid comprising a refrigerant and a refrigerating machine oil, the refrigerant comprises a hydrocarbon refrigerant having 2 to 4 carbon atoms, the refrigerating machine oil has a mixed aniline point of 20° C. or higher and 50° C. or lower and a viscosity index of 110 or more, an amount of the refrigerant dissolved in the working fluid is 40% by mass or less under conditions of a temperature of 80° C. and an absolute pressure of 2.8 MPa, and the refrigerating machine oil has a kinematic viscosity at −10° C. of 200 mm 2 /s or more and 3000 mm 2 /s or less. 7 . A refrigerating machine oil filled in a refrigerant circulation system comprising a compressor, a condenser, an expansion mechanism, an evaporator, and an accumulator, with a refrigerant, wherein the refrigerant comprises a hydrocarbon refrigerant having 2 to 4 carbon atoms, the refrigerating machine oil has a mixed aniline point of 20° C. or higher and 50° C. or lower and a viscosity index of 110 or more, an amount of the refrigerant dissolved in the working fluid is 40% by mass or less under conditions of a temperature of 80° C. and an absolute pressure of 2.8 MPa, and the refrigerating machine oil has a kinematic viscosity at −10° C. of 200 mm 2 /s or more and 3000 mm 2 /s or less.
Assignees
Inventors
Classifications
Refrigerators lubricants {or compressors lubricants} · CPC title
Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title
Pour-point; Viscosity index · CPC title
Containing Hydrocarbons · CPC title
Refrigerants · CPC title
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- What does patent US2024018437A1 cover?
- A working fluid filled in a refrigerant circulation system comprising a compressor, a condenser, an expansion mechanism, an evaporator, and an accumulator, the working fluid comprising: a refrigerant; and a refrigerating machine oil, wherein the refrigerant comprises a hydrocarbon refrigerant having 2 to 4 carbon atoms, the refrigerating machine oil has a mixed aniline point of 20° C. or higher…
- Who is the assignee on this patent?
- Eneos Corp
- What technology area does this patent fall under?
- Primary CPC classification C10M171/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 18 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).