Valeo Systemes Thermiques

Jean-Sylvain Bernard

Anne-Sylvie Magnier-Cathenod

Carlos Alberto Martins

Bertrand Gessier

Abdelaziz Gormat

Stéphane Tondelli

Carlos Da Silva

A compression and expansion machine is disclosed that includes a body with at least one chamber about an axis of symmetry, and pistons rotating about the axis of symmetry and dividing the chamber into cells rotating with the pistons. The invention also includes a device for coordinating the movement of the pistons and configured so that, during one rotation cycle, each of the cells performs at least one first expansion/contraction cycle corresponding to a stage of compressing a first stream of gas passing through this cell and at least one second expansion/contraction cycle corresponding to a stage of expanding a second stream of gas passing through this cell.

Scissor type compression and expansion machine used in a thermal energy recuperation system

A heat exchanger () comprises an alternating stacking of first plates () and second plates () provided respectively with first corrugations () separated by a first pitch (P) and second corrugations () separated by a second pitch (P), which is different from the first pitch (P). Between the plates, first flow channels are defined having a first cross sectional area adapted to a first fluid (F) which alternate with second flow channels having a second cross sectional area adapted to a second fluid (F). The invention applies in particular to heat exchangers for motor vehicles.

Plate-type heat exchanger, particularly for motor vehicles

A control valve for a cooling circuit of an automobile engine comprises a valve body () provided with an input () and a number of outputs () for a coolant, an adjustment member () designed to rotate about a rotation axis (XX), an electric motor () coupled to the adjustment member () to bring it into chosen angular positions to control the distribution of the coolant between the outputs (), and an absolute position sensor () coupled in rotation to the adjustment member () to deliver an output signal (S) representative of the angular position of the adjustment member (), wherein the motor is able to be driven by a position controller (CP) which is designed to receive the output signal (S) and which is used to adjust the angular position of the adjustment member ().

Growing community of inventors

Le Mesnil Saint Denis, France

Jean-Sylvain Bernard