A compressor rotor for turbomachinery, such as a compressor, is provided. Disclosed embodiments can benefit from seal elements that may be arranged to inhibit passage onto respective hirth couplings of process fluid being processed by the compressor. A seal element may be affixed to adjacent rotor components (e.g., adjacent impeller bodies) by way of a slip or interference fit connection to one of the adjacent components and may be affixed to the other adjacent rotor component by way of a elastically flexible frustoconical inner surface of the seal element that permits the seal element to be placed in a spring-loaded condition, which generates a biasing force to circumferentially clamp onto a frustoconical outer surface of the other adjacent rotor component. This arrangement is conducive to user-friendly assembly/disassembly of the seal elements with respect to the adjacent rotor components.

A cross joint comprises a flange yoke and a stab yoke, each comprising a based end portion and a pair of arm portions having a shaft hole and extending from both sides of the base end portion, and a spider having a first shaft fitted into the shaft hole of the flange yoke and a second shaft fitted into the shaft hole of the stab yoke, wherein the cross joint further comprises a flexing limiting portion, which limits a flexing angle of the cross joint due to mutual contact of a protruding portion of the base end portion and a flange portion of the spider when the flange yoke is flexed to a predetermined angle.

A gas turbine engine according to an example of the present disclosure includes, among other things, a fan section including a turbo fan supported on a turbo fan shaft, a turbine section including a turbine shaft, and an epicyclic gear train interconnecting the turbo fan shaft and the turbine shaft. The epicyclic gear train includes a sun gear coupled to the turbine shaft, intermediary gears arranged circumferentially about and meshing with the sun gear, a carrier supporting the intermediary gears, and a ring gear including first and second portions each having an inner periphery with teeth, the first and second portions arranged about and intermeshing with the intermediate gears, the first and second portions abutting one another at a radial interface, the first and second portions including respective flanges extending along the radial interface radially outward from the teeth, and the teeth of the first and second portions being oppositely angled teeth.

A gas turbine engine according to an example of the present disclosure includes, among other things, a fan section including a turbo fan supported on a turbo fan shaft, a turbine section including a turbine shaft, and an epicyclic gear train interconnecting the turbo fan shaft and the turbine shaft. The epicyclic gear train includes a sun gear coupled to the turbine shaft, intermediary gears arranged circumferentially about and meshing with the sun gear, a carrier supporting the intermediary gears, and a ring gear including first and second portions each having an inner periphery with teeth, the first and second portions arranged about and intermeshing with the intermediate gears, the first and second portions abutting one another at a radial interface, the first and second portions including respective flanges extending along the radial interface radially outward from the teeth, and the teeth of the first and second portions being oppositely angled teeth.

The invention relates to a driveshaft assembly comprising an elongated front shaft (3), a retaining element (10) being engaged from a connection end (50) with the front shaft (3) in a co-rotating manner and a coupling device (20) secured to the front shaft (3) by means of the retaining element (10). The driveshaft further comprises a gear part (52) which is extending on the connection end (50) and the retaining element (10) is having a sleeve (17) fits to the gear part (52) in axially slidable manner.

The invention relates to a driveshaft assembly comprising an elongated front shaft (3), a retaining element (10) being engaged from a connection end (50) with the front shaft (3) in a co-rotating manner and a coupling device (20) secured to the front shaft (3) by means of the retaining element (10). The driveshaft further comprises a gear part (52) which is extending on the connection end (50) and the retaining element (10) is having a sleeve (17) fits to the gear part (52) in axially slidable manner.

Provided is a structure for connecting an engine to a hybrid transmission, the structure including: a connecting unit connected to a rotor shaft at the opposite side and having an edge portion connected to a mass body by a connecting plate; and a drive plate positioned at a side close to a crank shaft so as to be opposite to the connecting unit, the drive plate being configured to connect the mass body and the crank shaft.

The invention relates to a coupling module for a drive train test stand for connecting an articulated shaft to a driveshaft. The coupling module includes a wheel rim and a wheel cap. The wheel rim can be rotationally fixed to the driveshaft. The wheel cap has a base surface and a lateral wall. The wheel cap can be rotationally fixed to the articulated shaft. A vehicle wheel is arranged on the wheel rim, the trad of the wheel being in frictional contact with the inner face of the lateral wall of the wheel cap. Also disclosed is a corresponding output module for a drive train test stand and to a drive train test stand for testing a vehicle drive train.

The invention relates to a coupling module for a drive train test stand for connecting an articulated shaft to a driveshaft. The coupling module includes a wheel rim and a wheel cap. The wheel rim can be rotationally fixed to the driveshaft. The wheel cap has a base surface and a lateral wall. The wheel cap can be rotationally fixed to the articulated shaft. A vehicle wheel is arranged on the wheel rim, the trad of the wheel being in frictional contact with the inner face of the lateral wall of the wheel cap. Also disclosed is a corresponding output module for a drive train test stand and to a drive train test stand for testing a vehicle drive train.

A compressor assembly is provided. Embodiments of the present disclosure generally relate to compressors used in chiller air conditioning systems for indoor spaces. The disclosed compressors have magnetic bearings that support rotating components. In one embodiment, the compressor comprises a partially segmented thrust bearing stator core. Additional systems, devices, and methods are also disclosed.