HEAT TRANSFER FLUIDS FOR USE IN LOW-TEMPERATURE COOLING SYSTEMS
Patent Information
- Application Number
- DE602020056590
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-10-28
- Filing Date
- 2020-10-27
- Publication Date
- 2025-08-13
- Estimated Expiration
- 2040-10-27
AI Technical Summary
Existing heat transfer fluids, such as perfluorocarbons (PFCs), have high global warming potentials and ozone depletion potentials, and alternative fluids like HFE-7200 have low boiling points, making them unsuitable for ultra-low temperature refrigeration applications where consistent phase stability and heat transfer are required.
A composition comprising 60-80% methyl perfluoroheptene ether and 20-40% hydrofluoroether HFE-7200, which maintains low viscosity and phase stability over a wide temperature range, enabling efficient heat transfer in ultra-low temperature refrigeration systems.
The composition provides effective heat transfer with low global warming potential, maintaining single-phase stability from -140°C to 120°C, suitable for semiconductor manufacturing, medical imaging, and machine tooling applications, while reducing environmental impact.