Low capacity, low-GWP, HVAC system
US10648702B2 · kind B2 · utility
3Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2016 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Oct 12, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/121
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A system (20; 300) comprises: a vapor compression loop (38; 338); a low-pressure or medium-pressure refrigerant in the loop; a centrifugal compressor (42) along the vapor compression loop and comprising: a housing (120); an inlet (44); an outlet (46); an impeller (140); an electric motor (122) coupled to the impeller to drive rotation of the impeller; and one or more refrigerant-lubricated bearings (130, 132).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.