Method for managing a heat pump operating with a low environmental impact operating fluid
US12061026B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 11, 2022 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Mar 11, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/21174
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for managing and controlling a heat pump based on a compression/expansion thermodynamic cycle of an operating fluid including at least: first and second heat exchangers; an expansion valve; and a compressor. The compressor is able to suck and compress a wet operating fluid. A plurality of temperature sensors detects the delivery temperatures Tm of the compressor, an evaporation temperature SST in the first exchanger, and a condensation temperature SDT in the second exchanger. The temperature difference between the lubricating oil in the compressor and the operating fluid at the compressor delivery is kept equal to or greater than a safety threshold OIL_SH such that there is no condensation of the operating fluid in the lubricating oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.