Refrigeration system with compressor load transfer means
US4193270A · kind A · utility
Inventor
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/22
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A closed cycle, multiple compressor, multiple evaporator, refrigeration system of the type particularly adapted to supermarket applications having a common condenser, a multiplicity of refrigerated fixtures with associated evaporators for cooling, all operating at the same temperature and pressure, all discharging into a common compressor suction header and a series of parallel compressors pumping from the common suction header to the condenser, together with a second set of refrigerated fixtures having evaporators operating at a lower pressure than that of the first multiplicity of evaporators, discharging into a second, lower pressure, suction header, from where its effluent refrigerant is pumped by a second compressor system back to the common condenser. The two compressor suction headers are connected by a conduit containing a pressure regulating valve which senses suction pressure in the lower pressure system and, as necessary, transfers refrigerant from the higher pressure suction header to the lower pressure suction header so as to fully utilize the pumping capacity of the compressor system pumping from the low pressure suction header.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.