Defrost control method and apparatus
US6718778B2 · kind B2 · utility
2Cited by
8References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 15, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Feb 8, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/10
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A defrost control system detects the variation in flow rate of refrigerant through an evaporator 8 while the flow is regulated to achieve a desired level of superheat at the outlet of the evaporator 8. When the flow rate becomes unstable, defrosting of the evaporator 8 is triggered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.