Process for setting the temperature difference between cut-in and cut-out temperature of a refrigerating unit or the like in the region of a set value, to be maintained, of the temperature

US4934593A · kind A · utility

Inventor

• Friedhelm Meyer · Mühlacker, DE

Key dates

• Filing date: Feb 10, 1989
• Grant date: Jun 19, 1990
• Expiry date: Feb 10, 2009

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25D2700/12
• WIPO field: Control
• WIPO sector: Instruments

Abstract

With a process for setting the temperature difference between cut-in temperature and cut-out temperature of a heating unit or, in particular, of a refrigerating unit in the region of a set value, to be maintained, of the temperature of a medium or of a room, for automatic adaptation of the temperature difference between cut-in temperature and cut-out temperature to changing loads, the temperature which, starting from the set value, is reached by the unit below or above the set value after expiry of a preselected unit of time in each case being established repeatedly, whereupon these established temperatures are compared and that temperature which coincides with several previously measured temperatures is used for setting the temperature difference between cut-in temperature and cut-out temperature.