Oil control system and method for HVAC system
US11624531B2 · kind B2 · utility
0Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 2019 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Sep 27, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/21152
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A HVAC system that includes a compressor comprising a suction port and a discharge port. Also included is a refrigerant circulating throughout the HVAC system and through the compressor. Further included is a pressure equalization valve fluidly coupling the discharge port of the compressor with the suction port of the compressor, the pressure equalization valve configured to open while the compressor is operating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.