Freezer and refrigerator provided with freezer
US6775998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2003 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Oct 17, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/122
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Respective evaporators are set to a proper value in evaporation temperature and the efficiency in refrigeration cycle is enhanced, resulting in a reduction of energy consumption. A refrigerating unit and a refrigerator comprise a compressor, a condenser, a plurality of evaporators connected in series, a refrigerant flow rate adjustable unit and a refrigerant, thereby constituting a refrigeration cycle. The refrigerant flow rate adjustable unit controls each respective evaporation temperature of the plurality of evaporators. Preferably, the refrigeration unit further comprises a bypass circuit bypassing at least one of the plurality of evaporators and, when needs arise, the refrigerant is channeled through the bypass circuit. The refrigerant flow rate adjustable unit controls a flow rate of the refrigerant such that an evaporation temperature of the respective evaporators located at the upstream side of the refrigeration cycle is made higher than an evaporation temperature of the respective evaporators located at the downstream side thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.