Multi-stage refrigeration system
US6553778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Jan 16, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/061
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A multi-stage cooling system is disclosed. The multi-stage cooling system is capable of providing a plurality of cooling capacities. The cooling system has a plurality of independently operable compressors. A control system operates the compressors to provide a cooling capacity corresponding to the heat load of a space to be cooled. A condenser structure of the cooling system has a plurality of individual condenser coils. Each condenser coil has an independent refrigerant path receiving compressed refrigerant from one of the compressors. An evaporator structure of the cooling system has a plurality of individual evaporator coils. Each evaporator coil has an independent refrigerant path receiving condensed refrigerant from a corresponding condenser coil via an expansion mechanism and returning refrigerant to an input of a corresponding compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.