A CVT drive train includes a gearbox input shaft, a secondary drive, a differential, and a continuously adjustable variator. The gearbox input shaft is arranged on a motor side. The secondary drive has a starting device and an electric motor, both arranged coaxially to the gearbox input shaft. The electric motor has a stator, and a rotor arranged radially inside of the stator. The differential has a differential output gear. The continuously adjustable variator has a drive-side disc set, and an output-side disc set coupled to the differential and arranged directly adjacent to the differential output gear in a plan view. The drive-side disc set has a drive-side adjustable disc, and a drive-side fixed disc facing away from the motor side. The output-side disc set has an output-side fixed disc, and an output-side adjustable disc facing away from the motor side.

A system is disclosed. The system may include a first hydraulic variator including a first hydraulic pump and a first hydraulic motor. A first actuator may be linked to the first hydraulic pump. The first actuator may be associated with a feedback link configured to control pressure supplied to the first actuator, via a control valve, according to the displacement of the first hydraulic pump. The system may include a second hydraulic variator including a second hydraulic pump and a second hydraulic motor. A second actuator may be linked to the second hydraulic pump and configured to control a pressure within the second hydraulic variator to correspond to a pressure within the first hydraulic variator. The system may include a controller configured to provide a first signal to the first hydraulic variator relating to a speed and a second signal to the second hydraulic variator relating to a torque.

A powertrain has an engine, a continuously variable power source (CVP), an output shaft and a transmission configured to provide selection between a plurality of transmission modes. The transmission includes a variator, with first and second output members, that is operably connected to the engine and the CVP and forward, reverse, first speed and second speed transmission components, each having an engaged position and a disengaged position. The transmission configured to provide at least first and second forward transmission modes and a reverse transmission mode in each of which combined power from the engine and the CVP rotates the output shaft. The forward, first speed and second speed transmission components are substantially coaxial with the output members of the variator.

A continuously variable transmission (1) having the cams (9, 10, 11, 12) that are not circular as usual, but have the form of a spiral. The outer contours (15, 16, 7, 18) of the two cams (9, 10, 11, 12) are each situated in a plane which is perpendicular to the direction of rotation of the respective cams (9, 10, 11, 12).

A drive train includes a first gear set including a sun gear, a ring gear and planetary gears coupling the sun gear to the ring gear, a second gear set including a sun gear, a ring gear and planetary gears coupling the sun gear to the ring gear, a first motor/generator coupled to the first gear set, a second motor/generator coupled to the second gear set, a first clutch that selectively engages the second motor/generator with the first gear set, and a second clutch that selectively engages the ring gear of the second gear set with the planetary gear carrier of at least one of the first gear set and the second gear set. The planetary gears of both sets are rotatably supported by respective planetary gear carriers.

A transmission system for a feed mixer including a continuously variable transmission (CVT) is provided. The CVT includes a mechanical loop and a hydrostatic loop. The CVT is operated so that the mechanical portion of the CVT is prevented from overtaking the hydrostatic portion of the CVT at start up of the CVT.

A system includes a mixer-wagon and a mechanical power transmission unit (100) to actuate the rotating members of the mixer-wagon; the transmission unit includes a box (20), a first shaft (1) accessible from the outside of the box (20) and a second shaft (4) accessible from the outside of the box (20). The first shaft (1) and the second shaft (4) are coupled by an epicyclical gear train (19).

A method of driving an integrated drive generator is provided. The method includes driving a carrier shaft of an epicyclic differential and a variable component of a hydraulic trimming device that is operably coupled to a sun gear of the epicyclic differential. The method also includes driving a generator with an output ring gear that is maintained at a constant output frequency. The method further includes maintaining the constant output frequency by controllably manipulating the speed of the sun gear that is in operable communication with the output ring gear.

A transmission for a propulsion system. The propulsion system includes a power unit, a power transfer system, and a propulsion element. The transmission incorporates a summation, a propulsion output, and a power transfer transmission system, which receives power from the power unit and/or the power transfer system of the propulsion system. The power transfer transmission system includes a propulsion output transmission and a summation transmission, where the propulsion output transmission receives power from the summation transmission and directs the power to the propulsion element. The power transfer transmission system provides for transfer of power between the power transfer system and the summation transmission. The power transfer transmission system includes a power transfer shaft and a power transfer coupler and selectively connects the power transfer shaft to a propulsion outlet shaft, such that power is transferred directly from the power transfer system to the propulsion output transmission.

A continuously variable transmission in which a circular driver, positioned between and frictionally engaged with op posing surfaces of two oppositely rotatable disks, which are urged towards each other with a biasing mechanism, is mounted to, and is movable axially along, a drive shaft which extends radially from an input shaft which rotates the drive shaft about a longitudinal axis of the input shaft, and wherein output drive is taken from the disks via a speed balancing system.