Peugeot Citroen Automobiles Sa

Ecoclim S.a.

Peugeot Citroen Automobiles Societe Anonyme

Vital Bruzzo

Emmanuel Boudard

Julien Berger

Philippe Marcais

Michel Cossenet

Fabien Gerard

This unit () comprises an evaporator () of liquid refrigerating fluid and an absorber () of gaseous refrigerating fluid linked to the evaporator (). The apparatus () includes a migrating chamber () for gaseous refrigerant fluid delimited by an evaporation surface (A) located on the absorber () facing the evaporation surface (A), and through a connecting floor () linking these surfaces (A,A). The evaporator () comprises a refrigerant fluid collector () linked to the evaporation surface (A) to collect the refrigerant fluid downstream from this surface. The evaporator () comprises partitions () set out in the chamber () and delimiting, on the evaporation surface (A) at least one area () covered by partitions () and at least one uncovered evaporation area (). For application in motor vehicle air conditioning.

Evaporator/absorbers combination, absorption cooling device and associated motor vehicle

This device () comprises a generator () for separating a mixed fluid into a refrigerant fluid and an absorbent fluid. It comprises a refrigerant fluid condenser (), linked to a generator () and an evaporator () of refrigerant fluid linked to a condenser () by a feeder conduit () into refrigerant fluid. This device () also comprises a refrigerant fluid absorber () linked to an evaporator () and a generator (). The device () comprises a refrigeration circuit () using refrigerant fluid. The circuit () is linked to at least a first heat exchanger () located outside the evaporator (). The circuit () is linked to at least a first evaporation area of the evaporator (), up and down stream from the first heat exchanger () to make part of the refrigerant circulate as a refrigerant fluid in the refrigeration circuit (). For application in air conditioning for motor vehicles.

Absorption-type cooling device and associated motor vehicle

The invention relates to an absorption air conditioner that comprises a desorber (), a condenser, an evaporator and an absorber, wherein the absorbing fluid may consist of lithium bromide. The method comprises the following steps: calculating the concentration of the absorbing fluid solution at the outlet of the desorber (); and comparing the calculated concentration with a predetermined critical value and, if the calculated concentration gets closer to the predetermined critical value, increasing the charge loss in the duct () connecting the desorber () to the condenser, which interrupts the condensation in the condenser and results in a pressure increase in the desorber that stops the desorption and in a concentration increase, the charge loss being on the other hand reduced for resuming the desorption when the calculated concentration deviates from the predetermined critical value. The invention can be used in automobiles and absorption air-conditioners.

Method for calculating and adjusting the concentration of absorbing fluid in an absorption air conditioning device, and absorption air conditioning device for implementing said method

Growing community of inventors

San Germano dei Berici Vicenza, Italy

Vital Bruzzo