Abstract: The invention concerns a device wherein the equipment and the support formed by the motor vehicle structural element are assembled in at least one point by to matching co-operating element. The equipment co-operating element is elastically deformable for being spaced from or brought close to the support, to enable direct interlocking at said point for mounting with means for cushioning the equipment on the support. The equipment is in particular a heat exchanger comprising an array of tubes assembled at each of their opposite ends by a collector plate closed by a fluid box, the equipment co-operating element being then a structural part of the fluid box.

Abstract: The invention concerns a device for fixing a first heat exchanger conduit on a second heat exchanger fluid box, in particular for a motor vehicle, comprising at least one fixing bracket moulded in one single piece with a wall of the fluid box, said fixing bracket comprising an open part for receiving the conduit. In another embodiment, the fixing bracket is made integral the with conduit by welding and is fixed removable on the fluid box.

Abstract: A fan in which, in order to improve straightening of the airflow, the axial length (L) of the guide vanes lies between 40 and 60 mm, and their angle of inclination &OHgr; with respect to a radial plane lies between 25 and 35°.

Abstract: The invention relates to a heat-exchange module comprising a first heat exchanger (12) the manifold chambers (18, 20) of which are each formed from two shaped sheet-metal pieces (36, 38) and each comprise at least one lug (52, 64) originating from one of the sheet-metal pieces and folded into a housing (60, 68) of matching shape which each of the manifold chambers (28) of a second heat exchanger (14) includes. In one embodiment, the first heat exchanger (12) is a radiator for cooling a motor-vehicle engine, while the second heat exchanger (14) is an air-conditioning condenser.

Abstract: The device comprises a main loop (18) for cooling the fuel cell (12) and a secondary loop (20) for cooling at least the motor (10). These two loops (18, 20) form part of the same circuit which is traversed by a single refrigerant fluid and which comprises a section (22) common to the two loops on which a common pump (24) is mounted, and at least one regulation valve (38) is provided which is suitable for sharing the refrigerant fluid between the loops (18, 20) according to a chosen law. Application to electric and hybrid vehicles.

Abstract: The mounting device has at least two receiving blocks on a load-bearing structure, each block having two face-to-face parallel ribs, as well as at least two damping studs. Each is produced from an elastically deformable material and includes two parallel grooves able to interact, by sliding, with the two parallel ribs of a receiving block. Each damping stud also has a bearing face suitable for interacting with an item of equipment, as well as having an abutment face suitable for interacting with the receiving block.

Abstract: A heat exchanger for heat extraction of a refrigerating fluid such as CO2, comprising at least one collecting box defined by a solid body (41) with a thick wall capable of resisting the high pressure of said fluid, and communicating with a row of flat tubes (44). In order to limit bulkiness in the width of the heat exchanger, only one part of the length of the cross section of the tubes is located opposite the inner volume of said body, whereby tightness of the fluidic communication between the tubes and the inner volume is obtained by means of a cradle (50) in the form of a shaped strip receiving the body and brazed thereto on the periphery of the tubes. The heat exchanger can be used to air condition passenger compartments in vehicles.

Abstract: A heat exchange device comprises two arrays of tubes through which flow two respective fluids. The device comprises a common support plate for the two arrays, which has a first portion provided with holes to act as a header plate for a first array and a second portion provided with openings for receiving in a forced fit manner the tubes of a second array with curved connectors. In one embodiment of the invention one array contains an engine cooling fluid and the other array contains a refrigerant fluid of an air-conditioning circuit.

Abstract: A metallic cooling fin for a motor vehicle heat exchanger has a central part having at least one set of fixed inclined lamellae, of selected form and spaced apart by apertures, the dimensions of which are predetermined to enable a fluid to pass between the lamellae. The lamellae in a common set are distributed in at least two groups, with the respective inclinations of the lamellae varying from one group to the other.

Abstract: The invention concerns a method whereby a soldering joint is applied on one of the surfaces of a collector plate (2, 3) before inserting the ends of the tube to be assembled thereto, in the form of a flexible adhesive previously perforated to correspond to the holes (20) of the plate.

Abstract: The invention relates to a device for assembling at least one item of equipment, such as a secondary heat exchanger, onto a primary heat exchanger, the said primary heat exchanger including a tube manifold (8) and a manifold chamber (9) crimped onto the tube manifold, the periphery of the said tube manifold forming a groove (12) for accommodating a sealing gasket (13) between the tube manifold and the manifold chamber. This device comprises, on the one hand, first means (19, 21, 23) for clipping onto the outside of the said groove, and, on the other hand, means (20) for accommodating and locking the said item of equipment. Application to motor vehicles.

Abstract: The invention relates to a device for fixing a fan-blade assembly (10) onto a shaft (12) suitable for being driven in rotation by a motor (14). It comprises a drive hub (24) integral with the shaft (12) and suitable for serving as a support for a hub (16) of the blade assembly (10), as well as a stop ring (26) slipped on around the shaft and equipped with elastic recall means (44), so as to press the hub (16) of the fan assembly (10) elastically against the drive hub (24). Application especially to the equipment of motor vehicles.

Abstract: The invention relates to a method of manufacturing a fin for a heat-exchange module which comprises at least two heat exchangers equipped with fluid-circulation tubes and comprising cooling fins common to the exchangers. The fin consists of a metal strip (14) having a width (L1) divided into at least two heat-exchange regions (18, 20) by at least one series of longitudinal oblong holes spaced apart from one another. In accordance with the method of the invention, at least one series of longitudinal slits (22) is formed, spaced apart from one another, in the metal strip (14), and the longitudinal slits are widened so as to form a series of oblong holes spaced apart from one another. According to one embodiment variant, stampings (24) are formed between the longitudinal slits (22), and these stampings are flattened so as to widen the slits (22) and form the oblong holes.

Abstract: The invention concerns a lighting or signalling equipment for a motor vehicle comprising a housing and adjustable means for fixing said housing on a structural part of the vehicle, and stop means countering the headlamp displacement in a specific direction to define a reference position for said headlamp relative to the car body. The invention is characterized in that the adjustable fixing means comprise a rotary fixing member capable of co-operating with said structural part and driving during an initial phase of its rotation means forming a cam capable of urging the equipment in said specific direction. The invention also concerning adapted structural element.

Abstract: A tube for a heat exchanger consists of a folded metal strip having an outer face covered with a plating of brazing alloy (31) and including at least one folded border (28) having a sheared edge bearing on an inner face (34) of the metal strip. The metal strip is folded by passing through a series of successive rollers. The sheared edge is covered with a layer of brazing alloy (31) which has advantageously been pushed back by the rollers from the outer surface towards the sheared edge. According to the method, the metal strip is made to pass between a series of rollers, each roller including a surface which exhibits an inclination with respect to the rotational axle of the rollers, the inclinations of the successive rollers continually increasing.

Abstract: Fixing of a fluid reservoir onto a part of the vehicle provided for this purpose. The reservoir is fixed onto the front-face module of the vehicle. A housing corresponding to the reservoir is provided in the module, into which the reservoir is inserted, then fixed by clipping.

Abstract: A cooling circuit for a vehicle engine, traveled by fluid under pump action, comprises a cooling branch with a radiator associated with a motor-driven fan unit, and a heating branch containing an air heater. A first device establishes a hot-starting state of the engine as a function of chosen conditions; and a second device, active in this hot-starting state, controls the speed of the pump and the speed of the motor-driven fan unit under chosen conditions, as a function of a first magnitude representative of the temperature of the fluid and of a second magnitude representative of the heating demand.

Abstract: A front-face support for various components at the front end of the vehicle has a plastic body overmolded onto a reinforcement enhancing the mechanical strength of the support. The reinforcement is a fabric of fibers, for example glass or carbon fibers, or a cable advantageously composed of steel wires.

Abstract: A cooling device for a vehicle with an electric motor powered by a fuel cell has a first cooling loop suitable for cooling the fuel cell and traversed by a first cooling fluid, a second cooling loop suitable for cooling at least the electric motor and traversed by a second cooling fluid, and a heat exchanger interposed between the first cooling loop and the second cooling loop.

Abstract: The invention concerns a heat exchanger comprising at least a manifold and a fixing lug attached to the manifold by a mechanical linkage obtained by clinching. The invention also concerns a method for making such a heat exchanger comprising a step for clinching the fixing lug on the manifold before making them definitely integral for furnace soldering. The invention is particularly applicable when the heat exchanger is an air conditioning condenser for a motor vehicle.