Crossover warm liquid defrost refrigeration system
US6094925A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1999 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Jan 29, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/22
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A crossover warm liquid defrost refrigeration system (10) having a medium temperature side (12) for cooling refrigerated goods and a low temperature side (14) for cooling frozen goods. The medium temperature side has a primary refrigeration loop (16) and a secondary refrigeration loop (18). The low temperature side also has a primary refrigeration loop (46) and a secondary refrigeration loop (48). Further included in the refrigeration system is a low temperature defrost heat exchanger (28) that is connected to the primary refrigeration loop of the medium temperature side and the secondary refrigeration loop of the low temperature side such that coolant from the low temperature side secondary refrigeration loop can be heated by the refrigerant of the medium temperature side, and then transported to the low temperature side refrigerated space heat exchanger (64) to melt any frost formed thereon. Typically, the system further includes a medium temperature defrost heat exchanger (58) that is connected to the primary refrigeration loop of the low temperature side and the secondary refrigeration loop of the medium temperature side such that coolant from the medium temperature side second…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.