Variable capacity multiple compressor refrigeration system
US4102149A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Apr 22, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/075
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The disclosed system includes first and second hermetic shell compressors, one of which always runs while the system is operating and includes unloading means for running at half load, and the other compressor operating at full load or not at all so that four operating capacity steps are available, both of the compressors having shells with suction gas inlets, oil equalizer line ports, and gas exchange line ports being identically sized and located with respect to each other so that standard compressors can be stocked and used in the multiple compressor system while the multiple compressor system is capable of being operated at the varying capacities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.