The device (10) is associated to a multidisk clutch (1) for motor vehicles, and allows the automatic disengagement thereof in the deceleration and/or braking initial phase, before that the driver operates the clutch lever (1) for downshifting. The device (10) includes a ramped plate (11) connected to the transmission, which features front cam profiles (110) adapted to actuate oscillating rocker arms (13), arranged inside a drum (5) provided in the clutch (1), when a back torque is generated by the drive wheel of the vehicle, during the deceleration and/or braking step. The rocker arms (13) rotate simultaneously from an inoperative position (N) to an operative position (H), causing the pusher plate (9) to move away with a reduction of the pressure exerted on the sets of friction rings (4, 7), which, therefore, can slip with respect to one another. This avoids abnormal blockages of the rear wheel and improves the drivability and curving of the motor vehicle.

A damping pulley assembly is disclosed including a pulley with an outer flange and a fixed pulley plate. A floating pulley clutch plate is located within and engaged with the outer flange. Circumferentially spaced apart leaf springs are connected to a pulley hub. Second ends of the leaf springs are connected to a driven hub that includes a fixed hub plate. Floating clutch plates are located between the fixed pulley plate and the fixed hub plate, which are biased toward the fixed pulley plate by the leaf springs so that the clutch plates contact one another and/or the fixed hub or pulley plates.

A torque distribution control system comprises a torsion unit for detecting traction on wheels of a primary driving axle that is continuously engaged with a drive source or a source of torque power. The amount of traction detected is converted to a signal with variable signal strength, the signal strength correlating to the amount of traction detected by the torsion unit. The signal strength capable of being adjusted automatically based on select parameters and/or manually based on a driver's input. And, in response to the signal, actuators engage and control operations of the vehicle such as the drive source, a braking system, and/or an axle clutch, with the level of engagement dependent upon the signal strength.

Technology is provided for a torque limiting clutch for use with a robot arm. The torque limiting clutch includes a hub including a hub flange and a clamp plate slideably mounted on the hub. A drive member is rotatably mounted on the hub between the hub flange and the clamp plate. The drive member includes a plurality of gear teeth disposed around an annular clutch disc. A first friction disc is positioned between the hub flange and the annular clutch disc, and a second friction disc is positioned between the clamp plate and the annular clutch disc. A plurality of clamp fasteners extend through the hub flange and engage the clamp plate to exert a clamping force operative to urge the clamp plate toward the hub flange, thereby pressing the friction discs against the annular clutch disc in order to transfer torque between the gear teeth and the hub.

A torque distribution control system comprises a torsion unit for detecting traction on wheels of a primary driving axle that is continuously engaged with a drive source or a source of torque power. The amount of traction detected is converted to a signal with variable signal strength, the signal strength correlating to the amount of traction detected by the torsion unit. The signal strength capable of being adjusted automatically based on select parameters and/or manually based on a driver's input. And, in response to the signal, actuators engage and control operations of the vehicle such as the drive source, a braking system, and/or an axle clutch, with the level of engagement dependent upon the signal strength.

A clutch device includes a slipper cam mechanism which releases a back torque by moving a clutch center in an axial direction, and a plunger mechanism provided to the clutch center. The plunger mechanism engages with a movement restricting portion until a rotational speed of the clutch center reaches a threshold value thus restricting the movement of the clutch center in the clutch axial direction, and the plunger mechanism is operated by a centrifugal force when the rotational speed of the clutch center exceeds the threshold value such that it disengages from the movement restricting portion.

A clutch center includes a pressure receiving part and is accommodated inside a clutch housing. A pressure plate includes a pressure applying part disposed at an interval from the pressure receiving part in an axial direction. A clutch portion is disposed between the pressure receiving part and the pressure applying part, and allows and blocks transmission of a power between the clutch housing and the clutch center. A first cam portion is disposed on one side of the clutch center in the axial direction, and increases an engaging force of the clutch portion when a forward drive force acts on a clutch device. A second cam portion is disposed on the other side of the clutch center in the axial direction, and reduces the engaging force of the clutch portion when a reverse drive force acts on the clutch device.

An aircraft propeller drive system for an aircraft is disclosed. The aircraft has a propeller driven by an intermittent combustion internal combustion engine via the propeller drive system. The propeller drive system has: a torsion bar having a first end and a second end opposite the first end, the first end being adapted to be operatively connected to and driven by the engine about a torsion axis, the second end being rotatable relative to the first end about the torsion axis by a torsion angle; an output shaft rotationally fixedly connected to and driven by the second end of the torsion bar, the output shaft being adapted for being connected to the propeller; and a hydraulic damper operatively connected between the output shaft and the first end of the torsion bar to dampen at least some variations in torsion angle of the torsion bar.

The device (10) is associated to a multidisk clutch (1) for motor vehicles, and allows the automatic disengagement thereof in the deceleration and/or braking initial phase, before that the driver operates the clutch lever (1) for downshifting. The device (10) includes a ramped plate (11) connected to the transmission, which features front cam profiles (110) adapted to actuate oscillating rocker arms (13), arranged inside a drum (5) provided in the clutch (1), when a back torque is generated by the drive wheel of the vehicle, during the deceleration and/or braking step. The rocker arms (13) rotate simultaneously from an inoperative position (N) to an operative position (H), causing the pusher plate (9) to move away with a reduction of the pressure exerted on the sets of friction rings (4, 7), which, therefore, can slip with respect to one another. This avoids abnormal blockages of the rear wheel and improves the drivability and curving of the motor vehicle.

Technology is provided for a torque limiting clutch for use with a robot arm. The torque limiting clutch includes a hub including a hub flange and a clamp plate slideably mounted on the hub. A drive member is rotatably mounted on the hub between the hub flange and the clamp plate. The drive member includes a plurality of gear teeth disposed around an annular clutch disc. A first friction disc is positioned between the hub flange and the annular clutch disc, and a second friction disc is positioned between the clamp plate and the annular clutch disc. A plurality of clamp fasteners extend through the hub flange and engage the clamp plate to exert a clamping force operative to urge the clamp plate toward the hub flange, thereby pressing the friction discs against the annular clutch disc in order to transfer torque between the gear teeth and the hub.