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:
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. The apparatus (10) includes a mechanism (16, 22) to move one (or both) of the magnet assembly (40) and the workpiece holder (30) relative to each other, such that the magnet assembly (40) and work piece holder (30) can be moved between a position in which the magnet assembly (40) and the gear (32) mounted on the work-piece holder (30) are in heating proximity to each other and a second position in which the magnet assembly (40) and gear (32) are out of heating proximity with each other.
Abstract:
A method and apparatus for measuring the speed of a target object passing a pair of sensor units (12) displaced apart by a predetermined distant L in the direction of motion of the target object (16). Passage of one or more features of the target object (16) past the first sensor unit (12A) results in the generation of a signal (x 1 ), and passage of the same feature of the target object (16) past the second sensor unit (12B) results in the generate of a second signal, (x 2 ). A signal processor (18) is configured to determine a mathematical correlation between signals (x 1 ) and (x 2 ), and an associated time delay (τ 0 ). The speed (v) of the target object (16) is calculated by the signal processor (18) as the ratio of the predetermined distance (L) to the time delay (τ 0 ).
Abstract:
An eccentric planetary traction drive transmission (A) which includes at least two planetary rollers (3 & 4), sun roller member (2), and a carrier member (27). One of the planetary rollers (3, 4, or 5) is flexible and is positioned between and in contact with an outer ring member (1) and the sun roller member (2). Rotation of either the outer ring member (1) or the sun roller member (2) wedges the flexible planetary roller (3, 4, or 5) within a convergent wedge gap (23) which squeezes the flexible planetary roller (3, 4, or 5) between the outer ring member (1) and the sun roll member (2). Friction between the flexible planetary roller (3, 4, or 5), the sun roller member (2), and the outer ring member (1) transmits rotational motion and torque between the outer ring member (1) and the sun roller member (2). The other at least one supporting planetary roller (3, 4, or 5) is a supporting roller which supports the sun roller member (2) and the carrier member (27). A plurality of bearings (26) supports the sun roller member (2) within the outer ring member (1) and the at least one supporting planetary roller (3, 4, or 5).
Abstract:
An electro-mechanical vehicle power transmission (10) comprises two planetary trains (12, 14) defining mechanical pathways, two electric machines (20, 22) defining an electrical pathway, and at least one torque transfer device (24) that can selectively couple between one component and another component or components to transfer torque. Each planetary train includes a sun member (12A, 14A), a ring member (12B, 14B), and a plurality of planet members (12C, 14C) engaged with the ring member and the sun member. Each planetary train includes a planet carrier (12D, 14D) configured to hold the planet members in an annular space between the ring member and the sun members. Each electric machine can be operated either as a motor to covert electrical energy to mechanical energy or as a generator to convert mechanic energy to electric energy. A first external coupler (16) receives mechanical power from a prime mover while a concentrically disposed second external coupler (18) delivers mechanical power to a driven member.
Abstract:
A roller bearing includes an inner race ring, an outer race ring, and a roller arranged between and in contact with the inner and outer rings. The bearing has a flange (31,131) on the inner race ring at one axial end, and a flange (21,121) on the outer race ring at an opposite axial end. One of the flanges, and/or an end of the roller, includes at least one principal segment (53,153) intermediate two additional segments (52,152;54,154). The principle segment is tangentially blended with the two additional segments, and the principle segment has a first curvature that is different from the respective curvatures of the two additional segments. A non-elliptical contact footprint can be obtained by composite profiles at the contact location between the roller end and the mating flange face.
Abstract:
A variable speed compressor system (A) incorporating an electric power generation capability by combining a variable-speed compressor assembly (70) with an electric motor assembly (50) via a drive subassembly (30) in a compact unit regulated by a control system (400). The control system (400) facilitates fully controllable boost-on-demand forced-air induction operation across an entire engine speed range, and offers intelligent electric power generation.
Abstract:
A method and apparatus for a transmission system selectively positioning sets of planet gear support bearings (50, 55, 80, 90) to achieve an optimized load distribution among a set of drive planet pinions (22) and a set of idler planet pinions (70) disposed in engagement between two reaction gears (30, 40) in the transmission system (A, A1), for splitting an applied load between at least two pathways between an input and an output.
Abstract:
An axially compact and highly integrated bevel pinion and bearing assembly (A1, A2) wherein a pinion gear (10) is integrated with a first support bearing (B1), and the pinion shaft (12) is integrated with a second support bearing (B2) axially displaced from the first support bearing (B1). With the first support bearing (B1) arranged axially under the pinion gear teeth (11), loads from the pinion gear (10) are transferred primarily through the first support bearing (B1). As a result, the second support bearing (B2) can be reduced in size and brought axially closer to the first support bearing (B1) to reduce the axial length of the pinion and bearing assembly. The integration of the pinion gear (10) with the first and second support bearings (B1, B2) optimizes material utilization and reduces overall weight of the pinion and bearing assembly, leading to a power density improvement.
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.