Refrigeration system with dual evaporators and suction line heating
US4918942A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1989 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Oct 11, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/23
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A refrigeration system suitable for use in a household refrigerator having a freezer compartment and a fresh food compartment is provided. The refrigeration system includes a first capillary tube, a first evaporator for providing cooling to the freezer compartment, a two stage compressor, a condenser, a second capillary, and a second evaporator providing cooling to the fresh food compartment. All the above elements are connected together in series in that order, in a refrigerant flow relationship. A phase separator connects the second evaporator to the first capillary tube in a refrigerator flow relationship and the phase separator provides intercooling between the first and second compressors. A first fraction of the second capillary tube in a heat transfer relationship with the gaseous phase refrigerant providing intercooling and a second fraction of the second capillary tube in a heat transfer relationship with the gaseous phase refrigerant supplied to the suction inlet of the first stage of the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.