Patent · US Expired

Control device for refrigeration or air conditioning systems

US7711451B2 · kind B2 · utility

5Cited by

5References

11Claims

0Family size

Assignee

Emerson Electric GmbH & Co. OHG · DE

Inventors

Peter Aue · Balingen, DE
Ali R. Nejad · Schorndorf, DE
Hans-Jürgen Bersch · Simmerath, DE
Bernd Kowanz · Öhringen, DE

Key dates

Filing date	Apr 20, 2005
Grant date	May 4, 2010
Priority date	—
Expiry date	Oct 2, 2025

Classification

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

Abstract

The invention relates to a control unit for a refrigeration or air conditioning device, comprising a main processor that is situated in a housing and that controls the temperature, fan and/or the defrosting process of a refrigeration or air conditioning device. Contact points for a co-processor, which is separate from the main processor and is suitable for controlling an electronic expansion valve, are located in said housing.

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