Abstract: A clutch mechanism is configured to be driven in rotation about an axis and includes two assemblies. Each assembly includes: an outer disk carrier externally delimiting a cavity; a clutch including a stack of coupling disks and friction disks, the stack being housed in the cavity and configured to be driven in rotation about the axis; and a reaction member of the outer disk carrier configured to enable compression of the coupling disks against the friction disks in a clutch engaged position of the corresponding clutch. The clutch mechanism includes at least one device for assembling the two assemblies to one another.

Abstract: A clutch mechanism that is configured to be driven in rotation about an axis and includes two assemblies, each assembly including at least an outer disc carrier externally delimiting a cavity, a clutch comprising a stack of coupling discs, and friction discs, the stack being housed in the cavity and configured to be driven in rotation about the axis, a reaction member configured to allow compression of the coupling discs against the friction discs in an engaged position of the clutch, the clutch mechanism comprising at least one device for assembling the two assemblies, the clutch mechanism including at least one device for adjusting an axial distance between the two clutches.

Abstract: Clutch mechanism (10) configured to be driven in rotation about an axis (O) and comprising two assemblies (1, 2), each assembly (1, 2) comprising at least: an outer disk carrier (106, 206) externally delimiting a cavity (C1, C2), a clutch (100, 200) comprising a stack of coupling disks (101, 201) and friction disks (102, 202), the stack being housed in the cavity (C1, C2) and configured to be driven in rotation about the axis (O), a reaction member (103, 203) of the outer disk carrier (106, 206) configured to enable compression of the coupling disks (101, 201) against the friction disks (102, 202) in a clutch engaged position of the corresponding clutch (100, 200), the clutch mechanism (10) comprising at least one device (3) for assembling the two assemblies (1, 2) to one another.

Abstract: The invention concerns a hydraulic pump (6, 7) for a clutch mechanism (1) of a vehicle transmission, the hydraulic pump (6, 7) comprising a body (60, 70) in which there are formed a chamber (61, 71), an inlet opening (62, 72) through which a hydraulic fluid can enter the chamber (61, 71), and an outlet opening (63, 73) through which the hydraulic fluid can leave the chamber (61, 71), the chamber (61, 71) receiving at least one hydraulic wheel of the hydraulic pump (6, 7), the inlet opening (62, 72) and the outlet opening (63, 73) each opening into the chamber (61, 71) of the body (60, 70), the body (60, 70) of the hydraulic pump (6, 7) being delimited by an outer edge (80) on which at least one peripheral groove (81, 82) is formed, configured to receive a gasket (83, 84), the gasket (83, 84) being intended to provide contact sealing between the body (60, 70) of the hydraulic pump (6, 7) and a hydraulic connection interface (4) of the clutch mechanism (1).

Abstract: A clutch mechanism that is configured to be driven in rotation about an axis and includes two assemblies, each assembly including at least an outer disc carrier externally delimiting a cavity, a clutch comprising a stack of coupling discs, and friction discs, the stack being housed in the cavity and configured to be driven in rotation about the axis, a reaction member configured to allow compression of the coupling discs against the friction discs in an engaged position of the clutch, the clutch mechanism comprising at least one device for assembling the two assemblies, the clutch mechanism including at least one device for adjusting an axial distance between the two clutches.

Abstract: The invention concerns a hydraulic pump (6, 7) for a clutch mechanism (1) of a vehicle transmission, the hydraulic pump (6, 7) comprising a body (60, 70) in which there are formed a chamber (61, 71), an inlet opening (62, 72) through which a hydraulic fluid can enter the chamber (61, 71), and an outlet opening (63, 73) through which the hydraulic fluid can leave the chamber (61, 71), the chamber (61, 71) receiving at least one hydraulic wheel of the hydraulic pump (6, 7), the inlet opening (62, 72) and the outlet opening (63, 73) each opening into the chamber (61, 71) of the body (60, 70), the body (60, 70) of the hydraulic pump (6, 7) being delimited by an outer edge (80) on which at least one peripheral groove (81, 82) is formed, configured to receive a gasket (83, 84), the gasket (83, 84) being intended to provide contact sealing between the body (60, 70) of the hydraulic pump (6, 7) and a hydraulic connection interface (4) of the clutch mechanism (1).

Abstract: A torque transmission module (M) intended to be part of a motor vehicle transmission (1), comprising: a cover (10), a double wet clutch mechanism (11) movable rotationally around an axis (X), and a clutch cover (12) having an oil distribution device intended to supply oil to the double wet clutch, the cover (10) and the clutch cover (12) being assembled so as to form a casing defining a receptacle in which the double wet clutch mechanism is partly received, the casing being able to be received entirely or in part in a clutch housing (5) of the transmission.

Abstract: A torque transmission assembly provided in a motor vehicle transmission. The torque transmission assembly comprises at least a clutch housing and a torque transmission module including: a cover, a wet dual-clutch mechanism rotatable about an axis, and a clutch casing comprising, in whole or in part, an oil dispensing device for supplying oil to the wet dual clutch. The cover and the clutch casing are assembled so as to form a housing defining a cavity in which the wet dual-clutch mechanism is received at least in part, and wherein the clutch casing is received, in whole or in part, in the clutch housing, and the cover comprises a first bearing surface capable of resting on an internal combustion engine.

Abstract: An elastic return device including a gasket and a clutch mechanism whose actuating system includes a control chamber designed to receive a pressurized fluid, a piston which is axially movable in the control chamber so as to engage or disengage the corresponding clutch, a balancing chamber situated opposite the control chamber in relation to the piston, and an elastic return device housed in the balancing chamber and designed to exert an axial force against the piston. According to the invention, the elastic return device includes, on one of its faces bearing against the piston, an internal peripheral end which extends radially beneath the piston and which carries a gasket in order to seal off the balancing chamber from the control chamber. The invention likewise relates to a transmission system including such a dual clutch mechanism.

Abstract: A transmission system (10), especially for a motor vehicle, having around an axis (O) at least an input shell (12) that is rotationally connected to a driving shaft and to a drive web (18) in order to rotationally connect said input shell (12) to a double wet clutch mechanism (20) that, having at least a first clutch (E1) and a second clutch (E2) respectively of the multiple-disc type, is controlled to selectively couple said driving shaft to a first driven shaft (A1) and to a second driven shaft (A2), wherein the input shell (12) and the drive web (18) are rotationally connected by connecting means (24), which are constituted in particular by rivets (25), with zero angular clearance.

Abstract: This device comprises two coaxial elements mounted rotatably with respect to a spring, and two seats for positioning the spring. Each seat comprises a dorsal pivot projection configured in two coaxial elements. The pivot projection is delimited by a cylinder portion whose section is a first circular arc whose tangent forms an angle ? with the axis of the spring. The section of each receptacle is formed by a second circular arc, having the same center and radius of curvature as the first circular arc, the tangent of which forms with the axis of the spring an angle ? greater than ?. The pivot axes are parallel to one another at a distance L, and are included in a plane located at a distance R from the rotation axis. The maximum deflection angle of the device is ?. ? is within the range [arctg(L/2R)??/8 to arctg(L/2R+?].

Abstract: A transmission system (10), especially for a motor vehicle, having around an axis (O) at least an input shell (12) that is rotationally connected to a driving shaft and to a drive web (18) in order to rotationally connect said input shell (12) to a double wet clutch mechanism (20) that, having at least a first clutch (E1) and a second clutch (E2) respectively of the multiple-disc type, is controlled to selectively couple said driving shaft to a first driven shaft (A1) and to a second driven shaft (A2), wherein the input shell (12) and the drive web (18) are rotationally connected by connecting means (24), which are constituted in particular by rivets (25), with zero angular clearance.

Abstract: A double wet clutch mechanism for a transmission system, at least a first clutch and a second clutch respectively of the multiple-disc type, the first clutch having a first piston and the second clutch having a second piston, the first and second pistons being displaced in order to cause, in an engaged position, clamping of a multiple-disc assemblage against reaction means that are interposed axially between the multiple-disc assemblage of each of the first and second clutches, the assemblage respectively having friction discs that are rotationally connected respectively to the first driven shaft and to the second driven shaft respectively by an external disc carrier, each of the external disc carriers having a radial extension and an axial extension, the axial extension of one of the external disc carriers exhibiting a radial offset.

Abstract: A torque transmission module (M) intended to be part of a motor vehicle transmission (1), comprising: a cover (10), a double wet clutch mechanism (11) movable rotationally around an axis (X), and a clutch cover (12) having an oil distribution device intended to supply oil to the double wet clutch, the cover (10) and the clutch cover (12) being assembled so as to form a casing defining a receptacle in which the double wet clutch mechanism is partly received, the casing being able to be received entirely or in part in a clutch housing (5) of the transmission.

Abstract: A transmission system (10), especially for a motor vehicle, having around an axis (O) at least a double wet clutch mechanism (20) having at least a first clutch (E1) and a second clutch (E2) respectively of the multiple-disc type, wherein the mechanism (20) has connecting means (85) arranged axially between the pistons (30, 90) of the clutches (E1, E2) which, for direct transmission of input power, connect together, with zero axial clearance, at least a drive web (18), an internal disc carrier (80) of the first clutch (E1), an internal disc carrier (130) of the second clutch (E2), and reaction means (60) interposed axially between the internal disc carriers (80, 130).

Abstract: This device comprises two coaxial elements mounted rotatably with respect to a spring, and two seats for positioning the spring. Each seat comprises a dorsal pivot projection configured in two coaxial elements. The pivot projection is delimited by a cylinder portion whose section is a first circular arc whose tangent forms an angle ? with the axis of the spring. The section of each receptacle is formed by a second circular arc, having the same center and radius of curvature as the first circular arc, the tangent of which forms with the axis of the spring an angle ? greater than ?. The pivot axes are parallel to one another at a distance L, and are included in a plane located at a distance R from the rotation axis. The maximum deflection angle of the device is ?. ? is within the range [arctg(L/2R)??/8 to arctg(L/2R+?].