Perishable product protection control system
US6058716A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1998 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Dec 24, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/21173
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method of controlling supply air temperature in an enclosure refrigerated with a refrigeration cycle including an evaporator exhibiting a temperature differential, is disclosed. The method includes the steps of defining a supply temperature limit constant and a setpoint; sensing supply air temperature; sensing return air temperature; comparing supply air temperature to the supply temperature limit constant; increasing supply air temperature if supply air temperature drops below the constant and at least one of additional determinable factors is sensed, thereby reducing cooling capacity; and increasing cooling capacity without substantially effecting the temperature differential at the evaporator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.