Patent classifications
F16H2045/0205
Torque converter including extended impeller shell for connecting to engine drive plate
A torque converter is provided. The torque converter includes a front cover and an impeller shell including an axially extending section fixed to the front cover. The impeller shell includes a connector on the axially extending section. The connector is configured for connecting to an engine drive plate assembly. A method for forming a torque converter is also provided. The method includes providing connector on an axially extending section of an impeller shell, the connector being configured for connecting to an engine drive plate assembly; and fixing the axially extending section to a front cover.
Clutch engagement ramps for torque converter
A torque converter including an axis of rotation and a flange rotatable about the axis of rotation is disclosed. The torque converter includes a turbine shell independently rotatable about the axis of rotation relative to the flange. A first plate, disposed between the flange and the turbine shell, may be fixed to the turbine shell. A second plate, disposed between the flange and the turbine shell, may be radially outward relative to the first plate. The torque converter further includes a cover having an inner surface and a third plate disposed between the flange and the cover. The first plate may include at least one ramp protruding in an axial direction toward the flange, wherein the ramp is rotatably engageable with the flange for urging the flange axially in a direction toward the cover, and for transmitting an axial force for urging a clutch to engage.
Hydrokinetic torque coupling device with torsional vibration damper in combination with two vibration absorbers
A hydrokinetic torque coupling device for coupling together driving and driven shafts, comprises a casing, impeller and turbine wheels, a torsional vibration damper, a turbine hub non-rotatably connected to the turbine wheel, and first and second vibration absorbers. Each of the first and second vibration absorbers is one of a dynamic absorber and a pendulum oscillator. The turbine hub is non-rotatably coupled to a driven member of the torsional vibration damper. The first vibration absorber is mounted to the turbine hub and the second vibration absorber is mounted to one of the turbine hub and the casing. The first vibration absorber and the second vibration absorber are tuned to address different orders of vibrations. The dynamic absorber includes an inertial member and a connecting plate coupled to the inertial member. The pendulum oscillator includes a support member and flyweights configured to oscillate relative to the support member.
Hydrokinetic torque coupling device having turbine-piston lockup clutch, and related methods
A hydrokinetic torque coupling device includes a casing having opposite sidewalls and an outer wall extending between and connecting the opposite sidewalls, an impeller coaxial aligned with the rotational axis, a piston engagement member extending substantially radially inward from and non-moveable relative to the outer wall of the casing, and a turbine-piston coaxially aligned with and hydrodynamically drivable by the impeller. The turbine-piston includes a turbine-piston shell having a turbine-piston flange with an engagement surface that is movable axially toward and away from an engagement surface of the piston engagement member to position the hydrokinetic torque coupling device into and out of a lockup mode in which the turbine-piston is mechanically locked to and non-rotatable relative to the piston engagement member.
TORQUE FLUCTUATION INHIBITING DEVICE, TORQUE CONVERTER AND POWER TRANSMISSION DEVICE
A torque fluctuation inhibiting device configured to inhibit torque fluctuations is disclosed. The torque fluctuation inhibiting device comprises a first rotor, a second rotor disposed to be rotatable relative to the first rotor, a centrifugal element, and a cam mechanism. The centrifugal element is configured to receive a centrifugal force generated by rotation of the first rotor. The centrifugal element is disposed to be movable with respect to the first rotor. The centrifugal element includes an engaging portion configured to be engage with the first rotor. The centrifugal element is formed by a plurality of components. The cam mechanism is configured to generate a circumferential force in movement of the centrifugal element and the circumferential force reduces relative displacement between the first rotor and the second rotor.
ISOLATOR ASSEMBLY AND A VEHICLE INCLUDING THE ISOLATOR ASSEMBLY
An isolator assembly includes a clutch configured to operate in a full locked condition. The isolator assembly also includes a first damper and a second damper configured to reduce oscillation when the clutch is in the full locked condition. The first and second dampers each include at least one plate and at least one spring. The isolator assembly further includes a centrifugal pendulum absorber (CPA) coupled to one of the first and second dampers. The CPA is configured to reduce oscillation when the clutch is in the full locked condition. A vehicle includes an engine and a transmission. The engine includes an output shaft and the transmission includes an input member. The vehicle includes the isolator assembly operable between the output shaft and the input member.
CVT drive train
A CVT drive train including an input drive is disclosed. A torque converter is downstream from the input drive in a power flow direction and contained within a torque converter housing, where the torque converter serves as a starting element. A disconnect clutch is contained within the torque converter housing along with a converter bridging clutch. The bridging clutch is combined with the disconnect clutch such that the impeller shell acts as a friction member for both clutches. In this way, the bridging clutch is positioned between a turbine shell and an impeller shell and the disconnect clutch is positioned between the impeller shell and housing of the torque converter. A continuously variable variator is operatively connected to and arranged downstream from the torque converter, and a rotation reversing device is downstream of the variator to enable a shift between a neutral position of the drive train and one of a forward driving position and a reverse driving position.
TORQUE CONVERTER
A torque converter for transmitting torque to an input shaft of a transmission includes a front cover, an impeller, a turbine disposed in opposition to the impeller, and a lock-up device. The lock-up device is for mechanically transmitting torque from the front cover to the turbine. The lock-up device includes a pressure receiving portion, a piston and an input part. The pressure receiving portion has an annular shape and is provided to protrude from an outer peripheral end of the turbine further radially outward. The piston is disposed between the front cover and the turbine so as to be axially movable, and includes a friction portion in an outer peripheral part thereof. The friction portion is capable of being engaged by friction with the pressure receiving portion of the turbine when pressed onto the pressure receiving portion. The input part transmits the torque from the front cover to the piston.
Starting device
A starting device includes a pump impeller, a turbine runner for rotating together with the pump impeller, a damper mechanism having an input element receiving power from an internal combustion engine, an output element coupled to a speed change device, an intermediate element between the input and output elements, and a dynamic damper for damping vibration at a predetermined frequency among vibration transferred to the speed change device. The starting device includes a first dynamic damper having an elastic member and a first mass body coupled the first elastic member, and coupled to the intermediate element; and a second dynamic damper having an elastic member and a second mass body connected to the second elastic member, and coupled to the intermediate element. The first mass body of the first dynamic damper or the second mass body of the second dynamic damper includes at least the turbine runner.
Lock-up device for torque converter
A lock-up device includes a clutch part, an input plate, an outer peripheral side damper part, an output plate, an inner peripheral side damper part, and an intermediate member. The outer peripheral side damper part includes at least two outer peripheral side springs. The outer peripheral side springs are disposed in a circumferential alignment, act in series, and take circular-arc shapes when in a free state. The inner peripheral side damper part includes at least two inner peripheral side springs. The inner peripheral side springs are disposed in a circumferential alignment on an inner peripheral side of the outer peripheral side damper part, and act in series. The intermediate member is rotatable relatively to the input plate and the output plate, and makes the outer peripheral side damper part and the inner peripheral side damper part act in series.