Thermoplastic structure for transporting refrigerant fluid
US-2015376335-A1 · Dec 31, 2015 · US
Working medium and heat cycle system
US2018002585A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018002585-A1 |
| Application number | US-201715704211-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 14, 2017 |
| Priority date | May 19, 2011 |
| Publication date | Jan 4, 2018 |
| Grant date | — |
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Abstract
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To provide a working medium for heat cycle which has less influence over the ozone layer, which has less influence over global warming and which provides a heat cycle system excellent in the cycle performance (the efficiency and the capacity), and a heat cycle system excellent in the cycle performance (the efficiency and the capacity). A working medium for heat cycle comprising 1,2-difluoroethylene is employed for a heat cycle system (such as a Rankine cycle system, a heat pump cycle system, a refrigerating cycle system 10 or a heat transport system).
First claim
Opening claim text (preview).
1 . A working medium for heat cycle, comprising (Z)-1,2-difluoroethylene and at least one compound selected from the group consisting of a hydrochlorofluoroolefin and a chlorofluoroolefin. 2 . The working medium of claim 1 , further comprising at least one hydrocarbon. 3 . The working medium of claim 1 , comprising at least 60 mass %, based on the mass of the working medium, of the (Z)-1,2-difluoroethylene. 4 . The working medium of claim 2 , comprising from 1 to 30 mass %, based on the mass of the working medium, of the at least one hydrocarbon. 5 . The working medium of claim 1 , wherein a total content of the hydrochlorofluoroolefin and the chlorofluoroolefin is from 1 to 60 mass % in the working medium. 6 . The working medium of claim 2 , wherein the at least one hydrocarbon is selected from the group consisting of propane, propylene, cyclopropane, butane, isobutane, pentane and isopentane. 7 . The working medium of claim 1 , comprising a hydrochlorofluoroolefin selected from the group consisting of 1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd) and 1-chloro-1,2-difluoroethylene (HCFO-1122). 8 . The working medium of claim 1 , comprising a chlorofluoroolefin selected from the group consisting of 1,1-dichloro-2,3,3,3-tetrafluoropropene (CFO-1214ya) and 1,2-dichloro-1,2-difluoroethylene (CFO-1112). 9 . The working medium of claim 1 , further comprising from 1 to less than 40 mass %, based on the mass of the working medium, of at least one hydrofluorocarbon. 10 . A heat cycle system, comprising the working medium according to claim 1 , an evaporator, a compressor, a condenser, an expansion valve, and a load fluid.
Assignees
Inventors
Classifications
containing only fluorine as halogen · CPC title
Unsaturated fluorinated hydrocarbons · CPC title
Hydrocarbons · CPC title
Halogenated hydrocarbons · CPC title
- C09K5/044Primary
comprising halogenated compounds · CPC title
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Frequently asked questions
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- What does patent US2018002585A1 cover?
- To provide a working medium for heat cycle which has less influence over the ozone layer, which has less influence over global warming and which provides a heat cycle system excellent in the cycle performance (the efficiency and the capacity), and a heat cycle system excellent in the cycle performance (the efficiency and the capacity). A working medium for heat cycle comprising 1,2-difluoroethy…
- Who is the assignee on this patent?
- Asahi Glass Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K5/044. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 04 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).