Regulating device for a coolant circuit of an air...

B - Operations – Transporting – 60 – H

Patent

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Details

B60H 1/00 (2006.01) F25B 9/00 (2006.01) F25B 49/02 (2006.01) G05B 11/32 (2006.01)

Patent

CA 2312701

The invention relates to a regulating device for a coolant circuit of an air conditioning system. Said coolant circuit is divided into a high pressure side and a low pressure side by a compressor and an expansion element. The regulating device comprises a regulating part (8 to 12) located on the high pressure side and has a regulating part (1 to 7) located on the low pressure side for respectively regulating one or several system components which can be regulated and which are located on the high pressure side or on the low pressure side. According to the invention, both regulating parts are coupled to one another in that at least one influencing quantity (ys) of the one regulating part (1 to 7) forms a coupling quantity which is injected into the other regulating part (8 to 12) as an influencing quantity which is also effective in said regulating part. The invention is used e.g. for CO2 air conditioning systems in motor vehicles.

L'invention concerne un dispositif de régulation destiné au système de circulation d'agent de refroidissement d'une installation de climatisation, système qui est divisé, par un compresseur et un organe de détente, entre un côté haute pression et un côté basse pression. Le dispositif de régulation comprend une partie de régulation côté haute pression (8 à 12) et une partie de régulation côté basse pression (1 à 7) servant, respectivement, à la régulation d'un ou de plusieurs composants de l'installation régulable, côté haute pression et côté basse pression. Selon l'invention, les deux parties de régulation sont couplées, au moins une grandeur d'influence (ys) d'une partie de régulation (1 à 7) formant une grandeur de couplage qui est injectée dans l'autre partie de régulation (8 à 12) en tant que grandeur d'influence également efficace dans cette partie de régulation. Ce dispositif de régulation est destiné à être utilisé, par exemple, dans des installations de climatisation à CO¿2? de véhicule automobile.

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