Abstract: A pendulum damping device including a support that rotates about an axis, at least one pendulum body and at least one rolling member guiding the movement of the pendulum body relative to the support, the rolling member engaging with at least one rolling track rigidly connected to the support and with at least one rolling track rigidly connected to the pendulum body. The rolling member includes a first part defining a first axial end, a second part defining a second axial end, and a resilient element arranged in the rolling member so as to axially separate these two parts so that the rolling member exerts an axial clamping force on one of the pendulum body and the support during the movement of the pendulum body relative to the support.

Abstract: A pendulum damping device including a support that rotates about an axis, at least one pendulum body and at least one rolling member guiding the movement of the pendulum body relative to the support, the rolling member engaging with at least one rolling track rigidly connected to the support and with at least one rolling track rigidly connected to the pendulum body. The rolling member includes a first part defining a first axial end, a second part defining a second axial end, and a resilient element arranged in the rolling member so as to axially separate these two parts so that the rolling member exerts an axial clamping force on one of the pendulum body and the support during the movement of the pendulum body relative to the support.

Abstract: A pendulum damping device including a mounting to rotate about an axis; at least one pendulum body that includes first and second pendulum masses axially spaced relative to each other and movable relative to the mounting, the first pendulum mass being axially placed on a first side of the mounting and the second pendulum mass being axially placed on a second side of the mounting, and at least one member to connect the first and second pendulum masses and couple the masses; and at least one rolling member that guides the movement of the pendulum body relative to the mounting. The rolling member engages with a rolling track secured to the mounting and with a rolling track secured to the pendulum body and defined by the connecting member. The rolling member exerts an axial clamping force on one of the pendulum masses during movement of the one pendulum mass relative to the mounting.

Abstract: An inertial deflector (1) for a motor vehicle transmission system. The inertial deflector comprises a support member (7) intended to be associated with an element (3) of the transmission system and to be driven rotationally around an axis X, an inertia mass (8) mounted rotationally movably on the support member (7) around the axis X, and helical springs (9) arranged along a circumferential direction and elastically rotationally coupling the support member (7) and the inertia mass (8). Each of the helical springs (9) is received in a receiving space that is delimited between on the one hand a recess (22) configured in the inertia mass (8) and radially and axially guiding the helical spring, and on the other hand a rim zone (23) of the support member (7) covering the recess (22) in order to axially retain the helical spring (9) in the recess (22).

Abstract: A device for damping torsional oscillations, comprising: a support capable of moving rotationally around an axis; a plurality of pendulum bodies, each pendulum body being movable with respect to the support; and a plurality of bearing members, each bearing member interacting with a first raceway integral with the support and with at least one second raceway integral with a pendulum body, the movement of each pendulum body with respect to the support being guided by two of those bearing members, the support comprising a plurality of windows in each of which two bearing members are received, one of those bearing members interacting with at least one second raceway integral with one of the pendulum bodies, and the other of those bearing members interacting with at least one second raceway integral with another of those pendulum bodies, the pendulum bodies being circumferentially adjacent.

Abstract: A torsional damping device (4) includes a first movable element (13, 14) and a second movable element (15, 16), a central hub rotationally coupled to the second element, at least one group of elastic members (25, 26) acting against rotation of the first element and second element with respect to one another, a phasing member having by two parts (32, 33) for arranging the elastic members of the at least one group of elastic members (25, 26) in series so that the elastic members (25, 26) of the at least one group deform in phase with one another, and a pendulum damper (48) rotationally connected to the phasing member. The first and second movable elements (13-14, 15-16) are coaxial and rotationally movable around an axis X. The phasing member (32, 33) is centered on the central hub by means of a pendulum support member.

Abstract: A pendulum damping device including a mounting capable of rotating about an axis; at least one pendulum body that includes first and second pendulum masses axially spaced relative to each other and movable relative to the mounting, the first pendulum mass being axially placed on a first side of the mounting and the second pendulum mass being axially placed on a second side of the mounting, and at least one member that is intended for connecting the first and second pendulum masses and couples said masses; and at least one rolling member guiding the movement of the pendulum body relative to the mounting. The rolling member engages, on one hand, with a rolling track secured to the mounting and, on the other hand, with a rolling track secured to the pendulum body and defined by the connecting member. The rolling member exerts an axial clamping force on at least one of the pendulum masses during movement of said pendulum mass relative to the mounting.

Abstract: A device for damping torsional oscillations including at least one support being displaced rotationally about an axis, a plurality of pendular bodies, each pendular body being mobile in relation to the support, and a friction-based connection between two circumferentially adjacent pendular bodies.

Abstract: A device for damping torsion oscillations comprises support rotatably movable about an axis. A pendular body comprises first and second axially spaced pendular masses movable relative to the support. The first mass disposed axially on a first side of the support and the second mass disposed axially on a second side of the support. A member connects the first and second pendular masses. Each mass includes an opening in which the connecting member is force-fitted. The openings have radially exterior and interior edges. The connecting member has radially interior and exterior edges. The radially exterior edge extends between two angular ends of the connecting member, each defined by a lug. Each mass exerts a force on each lug, and via a one nose piece projecting radially and carried by the radially interior edge of the opening or the radially interior edge of the connecting member.

Abstract: A method for assembling a pendulum-type damping device (1) includes the steps of force-fitting a first end of the spacer (17) into an opening (26) of a first part (3a) of a pendulum mass (3). A support (2) is positioned so that the spacer (17) spans a corresponding opening of the support (2). A roller is positioned between the spacer (17) and the edge of the opening of the support (2). The second end (17b) of the spacer (17) is force fit into an opening (26) of a second part (3b) of the mass (3).

Abstract: A filtering mechanism for torque fluctuations is interposed between a crankshaft of an internal combustion engine and a transmission. This mechanism comprises a rotating member to be damped, an oscillating inertial flywheel rotating around the axis of revolution, and pivot-mounted modules allowing angular deflection of the oscillating inertial flywheel with respect to the member to be damped. The modules each have at least one oscillating arm pivoting radially with respect to the member to be damped and a kinematic connecting member between the oscillating arm and the oscillating inertial flywheel. When the mechanism rotates centrifugal forces on the oscillating arm produce a counteracting torque that tends to return the oscillating inertial flywheel and the member to be damped toward the equilibrium position. The counteracting torque increases with the rotation speed of the filtering mechanism and with the amplitude of the angular deflection.

Abstract: A device for damping torsional oscillations has a support rotatable around an axis, a plurality of pendulum assemblies, a plurality of rolling members with each rolling member interacting with a first and second raceways, and a plurality of interposition members. The support comprises a plurality of windows which two rolling members are received, one of those rolling members interacting with a second raceway integral with one of the pendulum assemblies, and the other of those rolling members interacting with a second raceway integral with another of those pendulum assemblies. Each interposition member is arranged in a window of the support, and each interposition member being movable with respect to each of the two pendulum assemblies. Each interposition member capable of coming into contact with the periphery of the window in which it is received, with one of the two pendulum assemblies, and with the other of the two pendulum assemblies.

Abstract: A torsional damping device (4) having: a first movable element (13, 14) and a second movable element (15, 16), coaxial and rotationally movable around an axis X; a central hub rotationally coupled to the second element; at least one group of elastic members (25, 26) acting against rotation of the first element and second element with respect to one another; a phasing member (32, 33) constituted by two parts (32, 33), for arranging the elastic members of that group in series so that the elastic members of each group deform in phase with one another; and a pendulum damper (48) rotationally connected to the phasing member, the phasing member being centered on the central hub by means of the pendulum support member.

Abstract: An inertial deflector (1) for a motor vehicle transmission system, having: a support member (7) intended to be associated with an element (3) of the transmission system and to be driven rotationally around an axis X; an inertia mass (8) mounted rotationally movably on the support member (7) around the axis X; and helical springs (9) arranged along a circumferential direction and elastically rotationally coupling the support member (7) and the inertia mass (8); each of the helical springs (9) is received in a receiving space that is delimited between on the one hand a recess (22) configured in the inertia mass (8) and radially and axially guiding the helical spring, and on the other hand a rim zone (23) of the support member (7) covering the recess (22) in order to axially retain the helical spring (9) in the recess (22).

Abstract: A device for damping torsional oscillations, comprising: a support capable of moving rotationally around an axis; a plurality of pendulum bodies, each pendulum body being movable with respect to the support; and a plurality of bearing members, each bearing member interacting with a first raceway integral with the support and with at least one second raceway integral with a pendulum body, the movement of each pendulum body with respect to the support being guided by two of those bearing members, the support comprising a plurality of windows in each of which two bearing members are received, one of those bearing members interacting with at least one second raceway integral with one of the pendulum bodies, and the other of those bearing members interacting with at least one second raceway integral with another of those pendulum bodies, the pendulum bodies being circumferentially adjacent.

Abstract: A filtering mechanism for torque fluctuations is interposed between a crankshaft of an internal combustion engine and a transmission. This mechanism comprises a rotating member to be damped, an oscillating inertial flywheel rotating around the axis of revolution, and pivot-mounted modules allowing angular deflection of the oscillating inertial flywheel with respect to the member to be damped. The modules each have at least one oscillating arm pivoting radially with respect to the member to be damped and a kinematic connecting member between the oscillating arm and the oscillating inertial flywheel. When the mechanism rotates centrifugal forces on the oscillating arm produce a counteracting torque that tends to return the oscillating inertial flywheel and the member to be damped toward the equilibrium position. The counteracting torque increases with the rotation speed of the filtering mechanism and with the amplitude of the angular deflection.

Abstract: A device for damping torsion oscillations comprises support rotatably movable about an axis. A pendular body comprises first and second axially spaced pendular masses movable relative to the support. The first mass disposed axially on a first side of the support and the second mass disposed axially on a second side of the support. A member connects the first and second pendular masses. Each mass includes an opening in which the connecting member is force-fitted. The openings have radially exterior and interior edges. The connecting member has radially interior and exterior edges. The radially exterior edge extends between two angular ends of the connecting member, each defined by a lug. Each mass exerts a force on each lug, and via a one nose piece projecting radially and carried by the radially interior edge of the opening or the radially interior edge of the connecting member.

Abstract: A method for assembling a pendulum-type damping device (1) includes the steps of force-fitting a first end of the spacer (17) into an opening (26) of a first part (3a) of a pendulum mass (3). A support (2) is positioned so that the spacer (17) spans a corresponding opening of the support (2). A roller is positioned between the spacer (17) and the edge of the opening of the support (2). The second end (17b) of the spacer (17) is force fit into an opening (26) of a second part (3b) of the mass (3).