Refrigerant circulation device, method for circulating refrigerant and method for suppressing isomerization
US10465959B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Oct 23, 2014 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/121
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pump device and an organic Rankine cycle device that are capable of maintaining a stable thermal cycle even when an HFO or HCFO is used as the refrigerant. The refrigerant circulation device uses a refrigerant, wherein the refrigerant includes a hydrofluoroolefin or hydrochlorofluoroolefin having a carbon-carbon double bond within the molecular structure, and a reaction suppression unit which suppresses an isomerization reaction of the refrigerant is provided within the refrigerant circulation circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.