Peugeot Citroen Automobiles Sa

Ecoclim S.a.

Renault

Psa Automobiles Sa

Peugeot Citroen Automobiles Societe Anonyme

Emmanuel Boudard

Vital Bruzzo

Armel Le Lievre

Vitale Bruzzo

Julien Berger

Remi Goulet

Philippe Marcais

Marc Gohlke

Xavier Dumont

Manuel Martinez

Michel Cossenet

Fabien Gerard

Mathieu Bartoletti

Marc Yvetot

An absorption plate for a vehicle is crossed by a stream of liquid absorbent fluid flowing between two exchange surfaces arranged relatively opposite one another. The exothermal absorption of a coolant fluid in vapor phase takes place through the exchange surfaces by increasing a concentration of the coolant fluid in the absorbent fluid. The relative arrangement of the two exchange surfaces forces at least one portion of the stream of absorbent fluid to pass at least once through one of the exchange surfaces and causes mixing of the stream of the absorbed fluid.

Absorption plate for an air conditioner

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

A heat exchange and heat transfer device comprises an evaporating/absorbing arrangement connected to a binary mixture flow circuit containing a first refrigerant fluid and a second absorbing fluid. The refrigerant fluid is evaporated in the evaporator part of the arrangement and subsequently absorbed in the absorber part by an absorbing fluid-enriched mixture. The evaporating/absorbing arrangement comprises at least two oppositely disposed reference surfaces defining evaporation and absorption components, respectively, an evaporator mass for supplying the liquid refrigerant fluid to the reference surface of the evaporation component and an absorber mass for supplying the absorbing fluid-enriched mixture to the reference surface of the absorption component.

Heat exchange and heat transfer device, in particular for a motor vehicle

The invention relates to a control device (D) which is intended to control the temperature of first and second fluids formed by the lubricating oil of the heat engine () of the vehicle and the recirculated exhaust gases respectively. The inventive device (D) comprises a first heat transfer liquid/lubricating oil exchanger () and a second heat-transfer liquid/recirculated exhaust gases exchanger (), said first and second exchangers being connected to the same heat transfer liquid circuit (). Preferably, the heat-transfer liquid circuit () is connected to a heat source or a heat sink () comprising, for example, heat storage means () which can exchange heat with the heat-transfer liquid.

Device for controlling the temperature of fluids circulating in a heat engine vehicle and method used by said device

A motor vehicle structure including at least two upper side-members arranged at the level of the bumper, at least two lower side-members connected to the upper side-members by two linking supports, and a cross-member linking the two lower side-members at their front end. The front ends of the lower side-members are substantially in line with the front ends of the upper side-members and the two linking supports are arranged substantially between the front ends of the upper and lower side-members. The rear end of the lower side-members is designed to be supported on a stop portion of a structural element in a case of a head-on impact.

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Voisins Le Bretonneux, France

Emmanuel Boudard