Abstract: A method for use with a transmission system (A, A1, B) incorporating a split gear assembly (20, 120, 220) for splitting an applied input load between two or more reaction gears (30, 40, 130, 140, 230, 240) or pathways to selectively positioning a support bearing (50, 150, 250) to achieve an optimized load distribution (LRT) among a set of drive planet pinions (22, 122, 222) and idler planet pinions (70, 170, 270) in the transmission system.

Abstract: A high ratio epicyclic gear train (A) with improved load carrying capability for transmitting power from a driven input shaft, such as may be driven by a turbine engine or engines, to a output shaft, as may be coupled to a rotor of a rotary wing aircraft. The compound epicyclic gear train incorporates a load sharing mechanism consisting of a drive sun gear (10), an idler sun gear (11), a ring gear (12), a set of drive planet gear assemblies (13), a set of idler planet gear assemblies (14), and a planet carrier assembly (15) coupled to provide at least two power pathways through said epicyclic gear train (A) between said driven input shaft and said output shaft to provide an improved overall power density of the transmission.

Abstract: A supercharger for boosting intake manifold pressure in an internal combustion engine and producing electrical energy comprises an input shaft (3), a electric machine (50) including a stator (51) and a rotor (53), a compressor (70) including an impeller (71), and a planetary transmission (30) located between the input shaft (3) and the rotor (53) of the electric machine (50) and the impeller (71) of the compressor (70), all such that the input shaft 3 can drive both the impeller (71) and the rotor (53), or the rotor (53) and input shaft (3) can drive the impeller (71). The planetary transmission (30) includes an outer ring (31) operatively coupled to the input shaft (3), a sun member (39) operatively coupled to the impeller (71), planetary clusters (38) located between the outer ring (31) and sun member (39), and a carrier (37) operatively coupled to the planet clusters (38) and the rotor (53). Each planetary cluster (38) comprises an inner roller (35) and an outer roller (33).

Abstract: A friction drive (10) having a plurality of planet assemblies (24A, 24B, 24C) pivotally mounted to a carrier (12), a sun shaft (14) rotatably mounted with the carrier (12) and having a first raceway (16), and an outer ring member (18) having a second raceway (22) concentric to the first raceway (16) and having a ring shaft (20). The plurality of planet assemblies (24A, 24B, 24C) frictionally engaged with the first raceway (16) and the second raceway (22) for transferring power between the sun shaft (14) and the outer ring member (18).

Abstract: An apparatus (1) for heat treating the surfaces (32b) of gear teeth (32a) via magnetic inductive heating comprises a magnet assembly (40) and a workpiece (or gear) holder (30) operatively mounted on a base (12). The magnet assembly (40) is rotatable in a first plane about a first axis (A1), and the work-piece holder (30) (on which a gear (32) can be removably mounted) is rotatable about a second axis (A2) in a second plane. The first and second axes (A1, A2) are spaced apart from each other and the first and second planes intersect each other.

Abstract: An electric motor comprising a rotor, a stator and a field weakening device. The rotor has a plurality of magnets mounted thereto, and the stator is located adjacent to the rotor and has a plurality of slots defined therein. The slots define raised teeth and are wound with electrical wiring to generate a magnetic field when the wiring is energized with current. The field weakening device is made from a highly magnetically permeable material and a comparatively lower magnetically permeable material. The field weakening device is disposed between the rotor and the stator and is selectively movable between a first position to align the highly magnetically permeable material between the teeth of the stator and the magnets of the rotor and a second position to align the comparatively lower magnetically permeable material between the teeth of the stator and the magnets of the rotor.

Abstract: A mechanical structure (16) for enabling a rotor (28) in a permanent magnet electric motor A to be moved axially relative to a stator (14) under an actuating force, without experiencing frictional sliding during such a movement. As the rotor (28) is moved away from the stator (14), the motor magnetic field is weakened, enabling the motor A to operate efficiently at elevated speeds, extending speed coverage under constant power.

Abstract: A control method for an electro-mechanical camshaft phase shifting devices in general, and a control method for an electro-mechanic camshaft phase shifting device with a self-locking mechanism in particular. The control method takes advantage of a cam shaft reaction torque in conjunction with a frictional self-locking feature of an electro-mechanical camshaft phase shifting device to simplify the control structure and to reduce the actuating torque required for the associated electric machine, consequently reducing the size of electric machine.

Abstract: An integrated electric motor hub drive 1 that combines an electric motor subassembly (30), a sunless differential planetary gear drive subassembly (20), and a hub bearing assembly (10) together in a coaxial assembly to provide a compact high gear reduction electric hub drive system.

Abstract: A camshaft phase shifting device (30) includes a coaxially arranged three-shaft gear system, having an input shaft (16), an output shaft (14), and a control shaft (34) for adjusting the phase angle between the input and output shafts (16, 14). The control structure is a torque-based control structure. The dynamic response of the gear system and thus the desired phase angle of a camshaft (12) associated with the output shaft (16) is controlled and adjusted by a controller (40) which produces a torque command based on received signals. These signals include, but are not limited to, cam shaft phase angle error signal, torque load, and/or angular position signal of the camshaft (12), and relative speed signal between the input and output shafts (16, 14).

Abstract: A spindle unit (A) for effecting a manufacturing or repair procedure includes a spindle assembly (2) having a spindle (12) that holds a tool (B), an electric motor (4), and a friction drive transmission (6) located between the spindle assembly and the motor. The transmission includes a sun roller (86) driven by the motor, an outer ring (110) coupled to the spindle, and a pair of support rollers (90) located between the sun roller and outer ring to position the outer ring eccentric to the sun roller and create a wedge gap (126) between the sun roller and the outer ring. The transmission also has a loading roller (96) located at the wedge gap such that it can displace laterally and lodge tightly in the wedge gap. The spindle rotates in bearings (14, 16), one of which is a single row tapered roller bearing that transfers thrust loads developed during the procedure.

Abstract: A drive (A) for imparting rotation about an axis (X) includes an axial flux motor (4) having a stator (38) and a rotor (44), an output drive element (8), an epicyclic gear system (6) located between the rotor of the axial flux motor and the drive element. The gear system is located within and surrounded by the motor, thus rendering the drive highly compact along its axis.

Abstract: A non-synchronous camshaft phasing device 46 for use with an internal combustion engine E. The internal combustion engine E includes an engine control unit ECU, a camshaft 42 and a crankshaft 12. The non-synchronous phasing device 46 is located between the crankshaft 12 and the camshaft 42 for controlling a phase shift angle between the camshaft 42 and the crankshaft 12. The phasing device 46 comprises an input shaft 36 coupled to the crankshaft 12 via a non-synchronous belt 40. The phasing device 46 also comprises an output shaft 42 coupled to the camshaft 44; a planetary gear train 48 co-axially aligned around and coupled with the input shaft 36 and the output shaft 42; and an motor 50 coupled to the planetary gear train 48 by a carrier 56.

Abstract: An electromagnetic gear-clutch assembly (1) is disclosed. The device comprises a gear (10) having grooves (10c) that open inwardly toward the axis and extend axially. A hub (12) is located within the gear (10) where it is capable of rotating within the gear (10). The hub (12) has grooves (12k) that open outwardly away from the axis and extend axially. Keys (17) are located within the grooves (12k) of the hub (12) and are capable of moving radially toward and away from the axis, the arrangement being such that when the keys (17) are permitted to move away from the axis, at least one will enter one of the grooves (10c) in the gear (10) to couple the gear (10) and huh (12) so that they will rotate in unison. The device also comprises an actuator assembly (3) for effecting radial displacement of the keys (17).

Abstract: A phase shift mechanism (A) for controlling a phase shift angle between a camshaft (12) and a drive (10) comprises a planetary gear train (20). The planetary gear train (20) has first and second planet gears (34, 26) that are united to rotate about common axis at the same angular velocity, and a carrier (32) which includes a first planet bearing (62) and a second planet bearing (64) on which the united first and second planet gears (34, 36) respectively rotate and a locking mechanism (24) carried by the carrier (32) for locking the planetary gear train (20) in a locked condition by preventing the planet gears (34, 36) from rotating relative to the carrier (32) such that the phase shift angle remains the same and the output shaft 26 rotates with the input shaft (18) at the same angular velocity.

Abstract: A supercharger for boosting intake manifold pressure in an internal combustion engine and producing electrical energy comprises an input shaft (3), a electric machine (50) including a stator (51) and a rotor (53), a compressor (70) including an impeller (71), and a planetary transmission (30) located between the input shaft (3) and the rotor (53) of the electric machine (50) and the impeller (71) of the compressor (70), all such that the input shaft 3 can drive both the impeller (71) and the rotor (53), or the rotor (53) and input shaft (3) can drive the impeller (71). The planetary transmission (30) includes an outer ring (31) operatively coupled to the input shaft (3), a sun member (39) operatively coupled to the impeller (71), planetary clusters (38) located between the outer ring (31) and sun member (39), and a carrier (37) operatively coupled to the planet clusters (38) and the rotor (53). Each planetary cluster (38) comprises an inner roller (35) and an outer roller (33).

Abstract: A wheel end (A) has a housing (2, 70, 80, 90) and a hub (4) provided with a spindle (32) that projects into the housing, and the hub rotates relative to the housing on an antifriction bearing (6) located between the housing and hub spindle. The housing has a tubular core (12, 72, 82, 92) that encloses the bearing and ring mounts (14, 74, 84, 94) spaced outwardly from the core and also webs (16,76,86,96) that connect the ring mounts to the core. A road wheel (B) is attached to the hub and rotates with the hub relative to the housing. The housing is secured to a suspension upright (C) at its ring mounts. The core deflects relative to the ring mounts, owning to forces and moments transferred through the bearing from the suspension upright to the road wheel and vice versa, and the magnitude of those forces and moments are reflected in signals derived from strain sensor modules (SM) attached to the webs of the housing.

Abstract: A friction drive (10) having a plurality of planet assemblies (24A, 24B, 24C) pivotally mounted to a carrier (12), a sun shaft (14) rotatably mounted with the carrier (12) and having a first raceway (16), and an outer ring member (18) having a second raceway (22) concentric to the first raceway (16) and having a ring shaft (20). The plurality of planet assemblies (24A, 24B, 24C) frictionally engaged with the first raceway (16) and the second raceway (22) for transferring power between the sun shaft (14) and the outer ring member (18).

Abstract: An electric motor comprising a rotor, a stator and a field weakening device. The rotor has a plurality of magnets mounted thereto, and the stator is located adjacent to the rotor and has a plurality of slots defined therein. The slots define raised teeth and are wound with electrical wiring to generate a magnetic field when the wiring is energized with current. The field weakening device is made from a highly magnetically permeable material and a comparatively lower magnetically permeable material. The field weakening device is disposed between the rotor and the stator and is selectively movable between a first position to align the highly magnetically permeable material between the teeth of the stator and the magnets of the rotor and a second position to align the comparatively lower magnetically permeable material between the teeth of the stator and the magnets of the rotor.

Abstract: A steering wheel mounting assembly comprising a stationary support carrier, first and second drive rings, and a drive roller assembly. The stationary support carrier defines first and second ring receiving areas. The first drive ring has a first cylindrical raceway, is supported in the first ring receiving area, and is adapted for connection to a steering wheel. The second drive ring has a second cylindrical raceway, is positioned in the second ring receiving area, and is adapted for connection to a steering shaft. The drive roller assembly is supported within the first and second cylindrical raceways and comprises first and second roller planets, a sun roller supported in frictional engagement with the first and second roller planets, a first loading planet frictionally positioned between the sun roller and the first cylindrical raceway, and a second loading planet frictionally positioned between the sun roller and the second cylindrical raceway.