Refrigerator oil and refrigerator working fluid composition
US-2017015935-A1 · Jan 19, 2017 · US
Working fluid for heat cycle, composition for heat cycle system, and heat cycle system
US9862868B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9862868-B2 |
| Application number | US-201615220580-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 27, 2016 |
| Priority date | Jan 31, 2014 |
| Publication date | Jan 9, 2018 |
| Grant date | Jan 9, 2018 |
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Abstract
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A working fluid for heat cycle, a composition for a heat cycle system containing the working fluid, and a heat cycle system employing the composition are provided. The working fluid contains trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane. A proportion of the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane based on the entire amount of the working fluid is higher than 90 mass % and at most 100 mass %. Based on the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane, the proportion of trifluoroethylene is at least 10 mass % and less than 70 mass %, the proportion of 2,3,3,3-tetrafluoropropene is at most 50 mass %, and the proportion of difluoromethane is higher than 30 mass % and at most 75 mass %. The working fluid can replace R410A and has a low global warming potential and high durability.
First claim
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What is claimed is: 1. A working fluid for heat cycle, comprising: trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane, wherein a proportion of a total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane based on an entire amount of the working fluid is higher than 90 mass % and at most 100 mass %, and based on the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane, a proportion of trifluoroethylene is at least 10 mass % and less than 70 mass %, a proportion of 2,3,3,3-tetrafluoropropene is at most 50 mass %, and a proportion of difluoromethane is higher than 30 mass % and at most 75 mass %. 2. The working fluid according to claim 1 , wherein the proportion of difluoromethane based on the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane is higher than 30 mass % and at most 44 mass %. 3. The working fluid according to claim 1 , wherein based on the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane, the proportion of trifluoroethylene is at least 20 mass % and less than 70 mass %, and the proportion of 2,3,3,3-tetrafluoropropene is at most 40 mass %. 4. The working fluid according to claim 1 , wherein based on the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane, the proportion of 2,3,3,3-tetrafluoropropene is at least 5 mass % and at most 40 mass %. 5. A composition for a heat cycle system, comprising the working fluid according to claim 1 and a lubricating oil. 6. A heat cycle system, which employs the composition according to claim 5 . 7. The heat cycle system according to claim 6 , which is a refrigerating apparatus, an air-conditioning apparatus, a power generation system, a heat transport apparatus, or a secondary cooling machine. 8. The heat cycle system according to claim 6 , which is a room air-conditioner, a store package air-conditioner, a building package air-conditioner, a plant package air-conditioner, a gas engine heat pump, a train air-conditioning system, an automobile air-conditioning system, a built-in showcase, a separate showcase, an industrial fridge freezer, an ice making machine, or a vending machine.
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Classifications
Halogenated hydrocarbons · CPC title
Unsaturated fluorinated hydrocarbons · CPC title
All components of a mixture being fluoro compounds · CPC title
- C09K5/045Primary
containing only fluorine as halogen · CPC title
Replacement mixtures · CPC title
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- What does patent US9862868B2 cover?
- A working fluid for heat cycle, a composition for a heat cycle system containing the working fluid, and a heat cycle system employing the composition are provided. The working fluid contains trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane. A proportion of the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene, and difluoromethane based on the entire amount of the w…
- Who is the assignee on this patent?
- Asahi Glass Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K5/045. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 09 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).