Abstract: The tube (5) of a heat exchanger (1) is produced from a strip of material (11), the strip of material (11) having two end parts joined such as to form the tube (5). The strip of material (11) forming the tube (5) is folded on itself such as to define at least one fold (13) formed by two strip portions (13a, 13b) with continuity of material. At least one strip portion (13a, 13b) of the fold (13) is a strip portion (13a, 13b) for protecting the tube (5) in the event of an impact from an element outside the tube (5) and is formed in an intermediate part (11 b) of the strip of material (11).

Abstract: The invention relates to a collecting plate (10) having an inner face (12) and an outer face (14) of a heat exchanger, comprising at least three collars (16, 16a) arranged in a row so that each collar receives a tube (18). The two end collars (16a) of the row of collars protrude from the inner face (12) of the collecting plate (10), while at least one of the other collars (16) protrudes from the outer face (14) of the collecting plate (10).

Abstract: The invention relates to a collector box for a heat exchanger, in particular for a motor vehicle, including a collector plate (5), a cover (6), and a seal (7) for providing a seal between said collector plate (5) and said cover (6), said seal (7) including an attachment portion (22) configured so as to engage with at least one tube for circulating fluid of the heat exchanger, said attachment portion (22) having a projection (24) for grasping said seal, said cover having at least one recess (30) for accommodating said grasping projection (24). The invention also relates to a cover for said collector box and to a heat exchanger including such a collector box.

Abstract: The invention relates to a collector plate (14) for a motor vehicle heat exchanger (10), comprising a first receiving zone (30) for tubes of a first tube bundle of a heat exchanger (10), and a second receiving zone (32) for tubes of a second tube bundle of a heat exchanger, the collector plate (14) having a groove (38), the groove (38) extending between the first and second receiving zones (30; 32), the collector plate (14) being thinner at the groove (38). The invention also relates to a heat exchange device for a motor vehicle (10), in particular a radiator for cooling the engine of a motor vehicle, with two methodical passes, comprising such a collector plate.

Abstract: Header plate for a heat exchanger, comprising a wall (3) provided with orifices (7), and through which tubes (1) arranged in rows in a longitudinal direction (L) are intended to pass, characterized in that: said wall has (3), in cross section, a profile made up of a central portion (13) and of two lateral portions (15), the lateral portions (15) overall follow a first curve with a first radius of curvature (R1), the central portion (13) overall follows a second curve with a second radius of curvature (R2), smaller than the first radius of curvature (R1).

Abstract: An annular seal for a motor vehicle heat exchanger, intended to be stretched between two opposite supports (12) that it surrounds, comprising: two opposite support parts (16) intended to cooperate with the two supports (12), two connecting parts (18) joining the support parts (16) together, and an annular bead intended to be deformed elastically by axial compression substantially perpendicular to a plane parallel to the annular shape of the seal (10), said annular bead extending in the support (16) and connecting (18) parts. The cross section of the bead between each support part (16) and the connecting parts (18) to which it is joined changes in such a manner that its dimension, measured in a median plane of the seal (10) parallel to the annular shape of the seal (10), in other words the radial dimension, is smaller in the support part (16) than in the connecting parts (18).

Abstract: The invention relates to a collecting plate (10) having an inner face (12) and an outer face (14) of a heat exchanger, comprising at least three collars (16, 16a) arranged in a row so that each collar receives a tube (18). The two end collars (16a) of the row of collars protrude from the inner face (12) of the collecting plate (10), while at least one of the other collars (16) protrudes from the outer face (14) of the collecting plate (10).

Abstract: The invention relates to a method for producing a heat exchanger tube (1) by bending a metal strip (11), said tube (1) having an internal partition (19) formed by joining the ends of opposing edges (11a, 11b), said partition facing a projection (50) that extends into the heat exchanger tube (1) at a joining zone (22). The method comprises the following steps: locally stamping the metal strip (11) in order to produce a projection at the joining zone (22); and bending the metal strip (11) in order to form said heat exchanger tube (1), such that the projection extends into the tube (1). The invention also relates to such a tube (1) and to a heat exchanger (3) comprising a bundle of said tubes (1).

Abstract: Header plate for a heat exchanger, comprising a wall (3) provided with orifices (7), and through which tubes (1) arranged in rows in a longitudinal direction (L) are intended to pass, characterized in that: said wall has (3), in cross section, a profile made up of a central portion (13) and of two lateral portions (15), the lateral portions (15) overall follow a first curve with a first radius of curvature (R1), the central portion (13) overall follows a second curve with a second radius of curvature (R2), smaller than the first radius of curvature (R1).

Abstract: The distribution plate has a transverse dimension and a longitudinal dimension and includes a peripheral seat for receiving sealing means arranged around the periphery of the distribution plate, a plurality of through-holes for heat exchange pipes, at least one of the holes extending only partially along the transverse dimension of the plate, and at least one local protuberance for positioning the sealing means, delimiting a portion of the seat for receiving the sealing means.

Abstract: The invention relates to a cooling radiator for a vehicle, in particular a motor vehicle, comprising a bundle allowing the exchange of heat between a first fluid and a second fluid. The bundle includes at least one row of parallel tubes (2) through which the first fluid flows, said tubes being flat and spaced apart from one another by a pitch, known as the tube pitch, in a first direction. In addition, the tubes (2) are provided with corrugations (22) designed to disrupt the flow of the first fluid. The tube pitch is between 5 and 8 mm.

Abstract: The invention relates to a collection box (1) for a heat exchanger comprising a header (5) having an at least partially rounded shape and comprising: a plurality of openings (7) for the passage of a plurality of heat-exchange tubes (3) of the heat exchanger, and a plurality of flanges (9) surrounding the openings (7). According to the invention, the header (5) comprises a plurality of corrugations (11), and the flanges (9) are created at the corrugations (11) of the header (5) and respectively have a substantially flared shape directed away from the volume defined by the collection box (1).

Abstract: The invention relates to a heat exchanger including at least one elongate tube (3) adapted for the flow of a coolant, and at least one collection box (5) for such a coolant and into which one end of said tube leads, wherein the collection box includes a collector (9) having an element for receiving the end of said tube, the receiving element including a portion (19) projecting inwardly and shaped into an area for supporting said tube. According to the invention, the receiving element further includes a connection portion (21) for the inwardly projecting portion opposite the collector, and said connection portion protrudes on the side of the collector opposite the collection box such that said inwardly projecting portion (19) and said connection portion (21) have mutually opposite projecting directions.

Abstract: The invention relates to a collector plate (10) for a heat exchanger comprising a web (12) equipped with openings for the passage of tubes of the heat exchanger and a groove (14), known as a receiving groove, to accept a header tank cover, able to accept a gasket (104) and part of the cover and having a base (18) and two flanges, respectively an inner flange (16) and an outer flange (20) which are connected to the base (18). The inner flange (16) is connected to the web (12) and is subdivided into at least two disjointed portions, the two disjointed portions are separated by at least one recess (30), and the recess (30) between the two disjointed portions of the inner flange (16) is at least in the region of a site of the collector plate (10) that is intended to accept a bent part of the gasket (104). The invention also relates to a heat exchanger comprising the collector plate (10).

Abstract: The invention relates to a header plate (1) of a heat exchanger, comprising a plurality of openings or sockets (2) intended for the fixing of a plurality of tubes or the like through which at least one fluid flows, the header plate extending along a planar surface (XX), characterized in that the distance between two adjacent openings or sockets (2), or “tube spacing” (p), is less than 9.5 millimeters (mm). The invention also relates to a header tank with such a header plate (1) and to a brazed or “mechanical” heat exchanger including such a header tank.

Abstract: A collector box for a motor vehicle includes a collector for receiving heat exchange tubes and a cover mounted on the collector. The collector box extends in a longitudinal direction and has a cross section with a maximum height (h) and a maximum width (l). The collector is a metal profile delimited at its longitudinal ends by two end walls which extend in a substantially transverse plane. These two end walls are mounted on the metal profile, and the maximum height (h) of the collector box is greater than or equal to at least one and a half times the width (l) of the collector.

Abstract: The invention relates to a header tank for a heat exchanger, comprising a header plate intended for the fixing of a plurality of tubes through which at least one fluid flows, and a cover intended to close the header tank at least in part when fixed to the header plate, and an elastic sealing means (1) situated between the header plate and the cover, characterized in that the sealing means (1) is arranged resting against and in tension on at least two ends of tube. The invention also relates to the heat exchanger that incorporates two header tanks like those defined and to the method of fitting such a sealing gasket in a header tank.

Abstract: The distribution plate has a transverse dimension and a longitudinal dimension and includes a peripheral seat for receiving sealing means arranged around the periphery of the distribution plate, a plurality of through-holes for heat exchange pipes, at least one of the holes extending only partially along the transverse dimension of the plate, and at least one local protuberance for positioning the sealing means, delimiting a portion of the seat for receiving the sealing means.

Abstract: A spacer (7) for an air heater comprises a predefined number of planar walls (13; 113) that are substantially parallel and are connected two-by-two by folds (15). The planar walls (13; 113) include a plurality of louvers (171, 172) that are substantially inclined relative to the general plane (P) defined by the planar wall (13; 113). The planar wall (13; 113) further includes at least one strap (19; 1191, 1192, 1193, 1194) having longitudinal sides (21) that extend parallel to the planar wall (13; 113) and lateral sides (23) that are linked to the planar wall (13; 113) by means of at least one connecting rail (24). An air heater comprises a heat exchange bundle comprising a stack of parallel tubes (5) for the circulation of the fluid, the tubes having the width (l1) of a tube, and a plurality of such spacers (7) disposed respectively between two tubes (5).

Abstract: The invention relates to a manifold, of the type comprising a substantially flat plate (20) with holes (22) to accept tubes of a heat exchanger, and turned-up lateral edges (24) extending at an angle to said plate (20) and connected thereto by at least one curved portion in which ribs (52) are formed, the ribs each having a convexity extending substantially in the direction of extension of the lateral edges (24). The plate (20) comprises at least one additional rib (50) between at least some of said holes (22), which ribs each have a convexity extending substantially in the opposite direction to the direction in which the lateral edges (24) extend.