Patent · US Expired

Process for controlling the operation of a refrigerating unit

US4949548A · kind A · utility

10Cited by
2References
2Claims
0Family size

Inventor

Key dates

Filing dateFeb 10, 1989
Grant dateAug 21, 1990
Priority date
Expiry dateFeb 10, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02B30/70
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

With a process for controlling the operating of a refrigerating unit with an evaporator and a fan, the fan being cut in and cut out independently of the refrigerating unit, which is cut in at a predetermined cut-in temperature, above a set value, and is cut out at a predetermined cut-out temperature, below the set value, to save energy for the refrigerating operation, whenever there is a cutting-out operation of the refrigerating unit, the fan likewise cuts out and then cuts in again as soon as a predetermined cut-in temperature of the fan, lying below the cut-in temperature of the refrigerating unit, is reached.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.