The invention discloses a novel power transmission structure suitable for all-terrain karts, comprising a first sprocket support frame, the upper part of the first sprocket support frame is provided with an upper bearing chock of the support frame, and the lower part is provided with a lower bearing chock of the support frame, the engine end output shaft of the engine is connected to the upper bearing chock of the support frame through a suitable coupling and bearing, the engine end output shaft is equipped with a first sprocket and chain mechanism, and the sprocket of the first sprocket and chain mechanism is installed on the sprocket bearing chock. Compared with the prior art, the invention has the advantages that the overall structure is simple and practical, and the power output from the engine is efficiently transmitted to the rear drive axle, so that the vehicle can better adapt to off-road driving, the engine can also be installed on the frame and separated from the drive axle, which reduces the unsprung mass and improves the comfort of the driver and passengers, greatly improves the power transmission efficiency of the kart, and reduces a large amount of costs invested in the early stage and maintenance cost in the later stage, it has good applicability and is easy to promote.

A drivetrain system includes a first drive gear driven by a first motor and a second drive gear driven by a second motor. The first drive gear and the second drive gear are arranged along the axis. The first drive gear includes a first extension and the second drive gear includes a second extension arranged radially within and axially overlapping the first extension. The drivetrain system includes a system of bearings arranged between the first drive gear and the second drive gear, either drive gear and a stationary component, or a combination thereof. In some embodiments, the drivetrain system includes a clutch assembly arranged between the first drive gear and the second drive gear that interfaces to the first drive gear and to the second drive gear. The clutch assembly allows the drive gears to be locked or otherwise engaged to improve torque transfer.

An axle drive for a vehicle comprising at least one drivable vehicle axle oriented transversely to a longitudinal direction of the vehicle, said axle drive comprising an electric motor; a drive shaft that extends in parallel with the longitudinal direction between a first end and a second end and that is configured to receive drive power from the electric motor at an input section and to output said drive power at least partly to the vehicle axle via a bevel gear arranged at the first end; and a brake, in particular a parking brake, comprising a brake disk that is arranged at a brake section of the drive shaft, wherein the electric motor is arranged coaxially to the drive shaft and the input section of the drive shaft is arranged between the brake disk and the first end with respect to the longitudinal direction.

An axle drive for a vehicle comprising at least one drivable vehicle axle oriented transversely to a longitudinal direction of the vehicle, said axle drive comprising an electric motor; a drive shaft that extends in parallel with the longitudinal direction between a first end and a second end and that is configured to receive drive power from the electric motor at an input section and to output said drive power at least partly to the vehicle axle via a bevel gear arranged at the first end; and a brake, in particular a parking brake, comprising a brake disk that is arranged at a brake section of the drive shaft, wherein the electric motor is arranged coaxially to the drive shaft and the input section of the drive shaft is arranged between the brake disk and the first end with respect to the longitudinal direction.

A process for recovering catalyst from a fluidized catalytic reactor effluent is disclosed comprising reacting a reactant stream by contact with a stream of fluidized catalyst to provide a vaporous reactor effluent stream comprising catalyst and products. The vaporous reactor effluent stream is contacted with a liquid coolant stream to cool it and transfer the catalyst into the liquid coolant stream. A catalyst lean vaporous reactor effluent stream is separated from a catalyst rich liquid coolant stream. A return catalyst stream is separated from the catalyst rich liquid coolant stream to provide a catalyst lean liquid coolant stream, and the return catalyst stream is transported back to said reacting step.

A tube yoke used in a propeller shaft, which provides power transmission in vehicles. The tube yoke has a body made of composite pre-preg material, which has an extension surface in the form of a yoke on one end and in the form of a tube on the other end, which is attached to the propeller shaft tube by bonding or tight fitting.

A tube yoke used in a propeller shaft, which provides power transmission in vehicles. The tube yoke has a body made of composite pre-preg material, which has an extension surface in the form of a yoke on one end and in the form of a tube on the other end, which is attached to the propeller shaft tube by bonding or tight fitting.

An arrangement for mounting a powertrain of a four-wheeled vehicle of a body-on-frame type, wherein the powertrain is mounted on a chassis in an orientation transverse to the longitudinal axis of the vehicle. The mounting arrangement comprises a right-side powertrain mounting assembly 310 for supporting the powertrain 100 on the right-hand side, a left-side powertrain mounting assembly 320 for supporting the powertrain 100 on the left-hand side of the vehicle, and a powertrain roll-restricting and mounting assembly 330 for supporting the powertrain 100 on the rear side of the powertrain 100. The right-side powertrain mounting assembly 310 and the left-side powertrain mounting assembly 320 comprise a right isolating element 316 and a left isolating element 326 respectively, and the powertrain roll-restricting and mounting assembly 330 comprises a roll restricting and isolating element 334.

An arrangement for mounting a powertrain of a four-wheeled vehicle of a body-on-frame type, wherein the powertrain is mounted on a chassis in an orientation transverse to the longitudinal axis of the vehicle. The mounting arrangement comprises a right-side powertrain mounting assembly 310 for supporting the powertrain 100 on the right-hand side, a left-side powertrain mounting assembly 320 for supporting the powertrain 100 on the left-hand side of the vehicle, and a powertrain roll-restricting and mounting assembly 330 for supporting the powertrain 100 on the rear side of the powertrain 100. The right-side powertrain mounting assembly 310 and the left-side powertrain mounting assembly 320 comprise a right isolating element 316 and a left isolating element 326 respectively, and the powertrain roll-restricting and mounting assembly 330 comprises a roll restricting and isolating element 334.

Provided is a damper device enabling to exert stable vibration damping performance over a wide range of rotational speed regardless of environmental changes. A damper device attached to a rotating shaft to suppress amplitude at resonance of the rotating shaft, includes: a damper housing formed annularly and concentrically with the rotating shaft; a plurality of mass bodies annularly arranged around the rotation shaft inside of the damper housing and configured to be movable in the diameter direction by centrifugal force; an annular elastic body, formed of a circular spring-shaped elastic body abutting on the outside of the plurality of the mass bodies, so as to bias the mass body inward; and a biasing member, being a leaf spring-shaped elastic body abutting on the outside of the annular elastic body, so as to bias the annular elastic body inward.