Abstract: This invention relates to a double-plenum or double-chamber inlet manifold or splitter, made up of a structural unit comprising two distinct coupled plenums with a common wall, an inlet opening for each of the two plenums and several pipes through each of the said plenums, the said superimposed plenums having substantially flattened general structures and forming, with their respectively connected inlet openings and pipes, two independent circulation circuits running from the entrance at the inlet openings to the outlet at the external openings of the pipes, the said external or outlet openings of the pipes being grouped in pairs, with each pair having an opening of each of the two types of pipes; the manifold comprises two one-piece parts assembled together, in a gas-tight manner, at the continuous assembly areas, a first part incorporating at least the two inlet openings and first portions of the walls of the two plenums, contiguous to the said openings and the second part incorporating the pipes and second

Abstract: A method for producing a support plate (1) for valve bodies includes: i) providing a base armature (22) including an even number of portions of pipes (4, 4?); ii) arranging a valve body (5) on portions (19) of the base armature (22) forming temporary reception zones for a valve body (5); iii) mounting the control axis through bearings (7 and 9) and the transverse groove of each valve body (5); iv) molding onto the control axis a bearing support for each valve body (5) and a mounting insert in the corresponding guide bearing (7); v) mounting each valve body (5) on the corresponding bearing support by sliding on the control axis, and vi) inserting mounting inserts in the corresponding guide bearings (7).

Abstract: An air-filter device for a motor vehicle, having a casing and a filtering body separating the clean and dirty compartment, and also having a supporting body for the filtering body and a compression body designed to co-operate mechanically with the supporting body, these bodies being mounted in the manner of sliding drawers in an intermediate mounting compartment; the contact surfaces in mutual sliding bearing of the support and compression bodies are inclined in such a way that the forced stress position leading to a compression of the seal of the filtering body is achieved by displacement of the compression body in the direction of extraction and in that the control device, bringing about this displacement, stresses the supporting body and/or the casing in order to achieve the displacement of the compression body in a forced stress position, at least at the end of displacement.

Abstract: A method for producing a support plate (1) for valve bodies includes: i) providing a base armature (22) including an even number of portions of pipes (4, 4?); ii) arranging a valve body (5) on portions (19) of the base armature (22) forming temporary reception zones for a valve body (5); iii) mounting the control axis through bearings (7 and 9) and the transverse groove of each valve body (5); iv) moulding onto the control axis a bearing support for each valve body (5) and a mounting insert in the corresponding guide bearing (7); v) mounting each valve body (5) on the corresponding bearing support by sliding on the control axis, and vi) inserting mounting inserts in the corresponding guide bearings (7).

Abstract: This invention relates to a double-plenum or double-chamber inlet manifold or splitter, made up of a structural unit comprising two distinct coupled plenums with a common wall, an inlet opening for each of the two plenums and several pipes through each of the said plenums, the said superimposed plenums having substantially flattened general structures and forming, with their respectively connected inlet openings and pipes, two independent circulation circuits running from the entrance at the inlet openings to the outlet at the external openings of the pipes, the said external or outlet openings of the pipes being grouped in pairs, with each pair having an opening of each of the two types of pipes; the manifold comprises two one-piece parts assembled together, in a gas-tight manner, at the continuous assembly areas, a first part incorporating at least the two inlet openings and first portions of the walls of the two plenums, contiguous to the said openings and the second part incorporating the pipes and second

Abstract: A method for producing a hollow part formed from at least two portions joined together along respective adjacent edges, or at least portions of such edges, producing at the same time a seal in the region of the assembly zone, the method consisting in producing a first portion by moulding of a first thermoplastic material, this first portion comprising at least one rib or ridge protruding in the region of its edge or its assembly edge portion, then in producing a second portion by moulding onto the first portion of a second thermoplastic material, with at least partial overmoulding of the edge or the assembly edge portion of the first portion by the second material mass forming the edge or the assembly edge portion of the second portion, or an extension of this edge, said second material entirely covering said at least one rib or ridge.

Abstract: An air-filter device for a motor vehicle, having a casing and a filtering body separating the clean and dirty compartment, and also having a supporting body for the filtering body and a compression body designed to co-operate mechanically with the supporting body, these bodies being mounted in the manner of sliding drawers in an intermediate mounting compartment; the contact surfaces in mutual sliding bearing of the support and compression bodies are inclined in such a way that the forced stress position leading to a compression of the seal of the filtering body is achieved by displacement of the compression body in the direction of extraction and in that the control device, bringing about this displacement, stresses the supporting body and/or the casing in order to achieve the displacement of the compression body in a forced stress position, at least at the end of displacement.

Abstract: An air inlet module incorporating, in one structural unit, on the one hand, a supply manifold, on the other hand, an exhaust gas reinjection circuit and, finally, a gas/liquid heat exchanger designed to cool the exhaust gases, the module consisting of a sealed assembly of at most four parts, namely, a first part comprising the inlet manifold, the outlet manifolds, a portion of the supply conduit, and a hollow body forming the tank of the exchanger, a second part comprising the many circulation manifolds and a support body for assembling said manifolds in the tank, and a third part of which one portion forms a cover for the hollow open container and comprising several conduit portions forming at least partially the exhaust gas circulation circuit and conveying these gases to the inlet manifold, also incorporated in said third part.

Abstract: An air inlet module incorporating, in one structural unit, on the one hand, a supply manifold, on the other hand, an exhaust gas reinjection circuit and, finally, a gas/liquid heat exchanger designed to cool the exhaust gases, the module consisting of a sealed assembly of at most four parts, namely, a first part comprising the inlet manifold, the outlet manifolds, a portion of the supply conduit, and a hollow body forming the tank of the exchanger, a second part comprising the many circulation manifolds and a support body for assembling said manifolds in the tank, and a third part of which one portion forms a cover for the hollow open container and comprising several conduit portions forming at least partially the exhaust gas circulation circuit and conveying these gases to the inlet manifold, also incorporated in said third part.