Valeo Systemes Thermiques

Merck Patent Gmbh

Laurent Moreau

Pascal Roitel

Thierry Cassou

Alain Bauerheim

Francois Beideler

Lionel Taupin

Ichiro Kano

Didier Meyer

Patrick Zanchetta

Christophe Paragot

Mickael Dumoutier

Sory Sidibe

Christophe Voidie

Jean Lavenu

Philippe Metayer

François Beideler

Mickaël Dumoutier

The invention provides an irradiation device () designed to be mounted to an irradiation reactor (), comprising: an irradiation source (), preferably an UV-LED, mounted on a heat conductive substrate (); a disk-like heat sink () configured to removably receive the conductive substrate () such that heat transfer from the substrate () to the heat sink () is possible at a contact surface () and such that the irradiation from the irradiation source () can pass through an opening () of the heat sink () into aninterior volume () of the irradiation reactor () when the irradiation device () is mounted to the irradiation reactor (), wherein the opening () of the heat sink () is closed by a quartz window (); fixation means () releasably biasing the substrate () against the contact surface () of the heat sink (); and a fluid channel () extending along and/or through the heat sink (), wherein the fluid channel () is arranged to communicate with a fluid inlet or outlet port () of the irradiation reactor () and with one or more outlet openings () for discharging the fluid into the interior volume () of the irradiation reactor () or with one ore more inlet openings () for feeding the fluid from the interior volume () of the irradiation reactor () into the fluid channel ().

Irradiation device for irradiation reactor for treating a fluid and irradiation reactor

The invention provides a water purification and dispensing system, preferably for producing ultrapure water and offering the purified water at dispensing sites. The system () comprises a first purification stage () for purifying water to a first water purity grade, a water recirculation loop () including a second purification stage () for purifying water to a second water purity grade higher than the first purity grade and a dispensing portion () for the purified water, and a reservoir () arranged to store the water purified at the first purification stage () through a first connecting flowpath () and to deliver the stored water to the water recirculation loop () through a second connecting flowpath (). A 3-way valve () is provided in the flowpath between the first purification stage () and the reservoir () to selectively block the flow of purified water to the reservoir () and to drain the purified water from the first purification stage (). A third connecting flowpath () is branched from said dispensing portion () and is connected to the first connecting flowpath () upstream of an UV radiation treatment device ().

Water purification and dispensing system and method of operating such system

A fluid distributor valve () for repartitioning an inlet fluid stream (Z) into two outlet fluid streams (X, Y), comprising an inlet port (), two outlet ports (), a first and a second valve mechanism (), one arranged upstream each outlet port (), wherein each valve mechanism () comprises a valve body () slidable in a cylindrical valve bore () in reciprocating strokes through a valve shaft (), wherein the valve body () includes a first portion () that is formed with a progressively changing diameter so as to reduce a valve gap between the valve bore inner peripheral wall and the valve body outer peripheral wall at a plane (A, B) perpendicular to the stroke direction, in a regular operating range of the valve mechanism (), from a maximum valve gap to a minimum valve gap, to reduce or increase the flow rate through the gap towards the associated outlet port () upon the relative movement, and wherein at least one of the valve bodies () of the valve mechanisms (), preferably both, is/are formed such that the minimum valve gap is maintained at the end position of the stroke of the valve body () in the regular operating range.

Fluid distributor valve and water purification and dispensing system using the same

The invention provides a water purification and dispensing system, preferably for producing ultrapure water and offering the purified water at one or more dispensing sites in a desired volume. The water purification and dispensing system comprises a (closed) water recirculation loop including a water inlet for introducing water to be purified, pumping means for pumping water through said water recirculation loop in a flow direction, water purification means for purifying water downstream of said water inlet, a dispensing portion of the water recirculation loop including one or more outlet(s) for purified water branched from said water recirculation loop downstream of said water purification means, a first valve arranged between each outlet and said water recirculation loop, for controlled dispensing of the purified water from said recirculation loop through the respective outlet, a second valve arranged in said dispensing portion of the water recirculation loop downstream of said first valve(s) and upstream of said pumping means, a bypass passage branched from said water recirculation loop and bypassing said dispensing portion of the water recirculation loop including said first valve(s) and said second valve, and a third valve for controlling the flow rate through said bypass passage.

Water purification and dispensing system and method

Water purifier

Fluid circulation tube and heat exchanger equipped with tubes of this type are disclosed. The tube () is produced by bending, and, once its wall has been bent, has a base portion () prolonged laterally by two linking portions () leading to two top portions () turned toward one another, which terminate in end legs () turned toward the base portion (), forming at least two parallel longitudinal internal channels () into which the two systems () of bends () of a corrugated disrupter () can be inserted, these systems being interconnected by a central part () inserted into a gap left between said legs and the base portion.

Fluid circulation tube and a heat exchanger comprising such tubes

A header box (') includes a header () and a cover () having a longitudinal extent dimension and at least one flange (&#x2032;) crimped in-between the header () and the cover (). The header () has a ductility different from that of the flange (&#x2032;). At the flange (&#x2032;), a longitudinal portion () of the header () and/or of the flange (&#x2032;) is rolled in such a way that the flange (&#x2032;) is trapped between the header () and the cover (). Additionally, a heat exchanger includes such a box.

Header box, heat exchanger comprising said header box and method of crimping such a box

A collector box () is a component of a heat exchanger for a motor vehicle, with the heat exchanger including a heat exchange core with a plurality of heat exchange tubes (). The collector box () includes a fluid collector () with a flat bottom () to receive the ends of the tubes (). The fluid collector () has two lateral walls () extending from the flat bottom () and respectively forming a curve between the lateral walls () and the flat bottom () of a radius (R) of between 1.5 and 4 mm. The fluid collector () has a ratio between the burst strength and the height (h) of the collector box () that is greater than 10.

Heat exchanger collector box, in particular for a motor vehicle, and corresponding heat exchanger

The invention relates to a cylinder for storing coolant, with which a heat exchanger of an air-conditioning circuit is to be provided, said cylinder defining a first cavity () accommodating a desiccator, and a second cavity () capable of enabling fluid communication with said circuit. Said cylinder is configured such that said first () and second () cavities remain isolated from each other up to a first inner pressure threshold, and are placed in fluid communication once said second cavity () is subjected to a second inner pressure threshold that is greater than the first threshold. The invention also relates to a condenser provided with such a cylinder.

Cylinder for storing coolant, and heat exchanger including such a cylinder

The present invention relates to a heat exchanger header, wherein said header includes a lower portion () having two longitudinal edges (), an upper portion () forming a cover, and at least one flange (). According to the invention, said flange () has a profile () that enables the longitudinal edges () of the header, which are provided at least locally folded, to be received at the flanks () thereof, so as to simultaneously crimp the flange () onto said cover () and retain the cover () on said lower portion ().

Heat exchanger header

Header for a heat exchanger and resulting heat exchanger are disclosed. The tubular header is of the type which can receive at least one connecting flange () with an internal fluid passage (), and is composed of: a header plate () with a longitudinally open wall, provided with slots intended to receive parallel fluid flow tubes; and a cover () which, after assembly, closes a longitudinal opening of said header plate, the wall of this cover having at least one external collar () delimiting a hole for the flow of fluid (), said connecting flange () being attached to said cover () and being configured in such a way that it can be crimped onto the header (), thereby bringing the internal passage () into fluid communication with the hole () in said collar. Advantageously, said collar () has a wall thickness () which is reduced relative to that of said cover () from which the collar extends, thereby maximizing the cross section of said hole () for the flow of fluid toward the internal passage () of said flange.

Heat exchanger manifold and a heat exchanger equipped with such a manifold

The invention relates to an assembly of two parts crimped together by folding at least one portion of peripheral edge () of one so-called first part () over the other so-called second part (). Said first part () has a hinge-forming region facilitating the folding of said portion of peripheral edge (). The invention also relates to a manifold comprising said assembly and a heat exchanger comprising said manifold.

Assembly of two parts crimped one over the other

The present invention relates to a brazing method for a component () of an air-conditioning circuit comprising a fluid refrigerant receiver (), said receiver containing a desiccator () for said fluid refrigerant. Said method includes the steps consisting of: equipping said receiver () with confinement means () capable of insulating said desiccator () from said component (); assembling and brazing together said receiver () and said component (); releasing said confinement means (). The invention also relates to a fluid receiver intended in particular for implementing such a method, with application to the air conditioning of motor vehicles.

Growing community of inventors

Versailles, France

Laurent Moreau