Working medium and heat cycle system
US-2017101567-A1 · Apr 13, 2017 · US
Working fluid for heat cycle
US10053607B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10053607-B2 |
| Application number | US-201514850035-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 10, 2015 |
| Priority date | Apr 30, 2013 |
| Publication date | Aug 21, 2018 |
| Grant date | Aug 21, 2018 |
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Abstract
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A working fluid for heat cycle, which has less influence over the ozone layer, has less influence over global warming, and has favorable cycle performance, is provided. The working fluid contains trifluoroethylene and difluoroethylene and the proportion of the difluoroethylene is less than 1.5 mass % based on the working fluid.
First claim
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What is claimed is: 1. A working fluid for heat cycle, comprising trifluoroethylene, 1,1-difluoroethylene, and difluoromethane, wherein a proportion of 1,1-difluoroethylene is less than 1.5 mass % based on an entire amount of the working fluid. 2. The working fluid according to claim 1 , wherein a proportion of trifluoroethylene is at least 20 mass % based on the entire amount of the working fluid. 3. The working fluid according to claim 1 , further comprising a hydrofluoroolefin. 4. The working fluid according to claim 3 , wherein the hydrofluoroolefin is 2,3,3,3-tetrafluoropropene. 5. A working fluid for heat cycle, comprising trifluoroethylene, 1,1-difluoroethylene, and difluoromethane, wherein a proportion of 1,1-difluoroethylene is less than 1.5 mass % based on an entire amount of the working fluid, and a total proportion of trifluoroethylene and difluoromethane is at least 80 mass % based on the entire amount of the working fluid. 6. The working fluid according to claim 5 , wherein a proportion of trifluoroethylene is at least 20 mass % based on the entire amount of the working fluid. 7. A working fluid for heat cycle, comprising trifluoroethylene, 1,1-difluoroethylene, difluoromethane, and 2,3,3,3-tetrafluoropropene, wherein a proportion of 1,1-difluoroethylene is less than 1.5 mass % based on an entire amount of the working fluid, and a total proportion of trifluoroethylene and 2,3,3,3-tetrafluoropropene is at least 70 mass % based on the entire amount of the working fluid. 8. The working fluid according to claim 7 , wherein a proportion of trifluoroethylene is at least 20 mass based on the entire amount of the working fluid. 9. A working fluid for heat cycle, comprising trifluoroethylene, 1,1-difluoroethylene, difluoromethane and 2,3,3,3-tetrafluoropropene, wherein a proportion of 1,1-difluoroethylene is less than 1.5 mass % based on an entire amount of the working fluid. 10. The working fluid according to claim 9 , wherein a proportion of trifluoroethylene is at least 20 mass % and less than 70 mass %, a proportion of difluoromethane is at least 30 mass % and at most 75 mass %, and a proportion of 2,3,3,3-tetrafluoropropene is at most 50 mass %, based on the entire amount of the working fluid.
Assignees
Inventors
Classifications
- C09K5/045Primary
containing only fluorine as halogen · CPC title
Halogenated hydrocarbons · CPC title
All components of a mixture being fluoro compounds · CPC title
Unsaturated fluorinated hydrocarbons · CPC title
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Frequently asked questions
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- What does patent US10053607B2 cover?
- A working fluid for heat cycle, which has less influence over the ozone layer, has less influence over global warming, and has favorable cycle performance, is provided. The working fluid contains trifluoroethylene and difluoroethylene and the proportion of the difluoroethylene is less than 1.5 mass % based on the working fluid.
- 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 Aug 21 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).