Method for defrosting an evaporator in a refrigeration circuit
US8011192B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2005 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | May 15, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/11
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Method for defrosting an evaporator in a refrigeration circuit (2) for circulating a refrigerant in a predetermined flow direction, the refrigeration circuit (2) comprising in flow direction a compressor unit (4), a heat-rejecting heat exchanger (6), an expansion device (12) and an evaporator (14), wherein the evaporator (14) comprises at least two refrigerant conduits (42; 44) and the method comprises the following steps: (a) operating the refrigeration circuit (2) in the normal cooling mode where the refrigerant exiting the heat-rejecting heat exchanger (6) flows through the expansion device (12) and through the evaporator (14) and towards the compressor unit (4); (b) terminating the cooling mode by interrupting the flow of the refrigerant exiting the heat-rejecting heat exchanger (6) into the evaporator (14); and (c) directing hot gas refrigerant through only a portion of the refrigerant conduits (42; 44) of the evaporator (14) for defrosting the evaporator (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.