Abstract:
A vehicle wheel hub and bearing assembly (A) configuration which prevent axial separation of rotating hub components (4) and stationary housing components (2) in at least one axial direction via physical interference between radially inner most components of said stationary housing (2) and radially outermost components of said rotating hub (4), reducing the risk of vehicle wheel separation failures.
Abstract:
A roller bearing for use in transmission cases (1) made from aluminum alloy or other lightweight materials where the transmission contains a steel shaft (2) which is supported in the case on two directly mounted tapered roller bearings (8,9) so that the two bearings (8,9) confine the shaft (2) both radially and axially. To compensate for the differences in expansion and contraction between the case and the steel shaft (2) as the transmission or transaxle experiences variations in temperature, a race (20) of at least one of the bearings is fitted with a compensating ring (34) having a coefficient of thermal expansion greater than that of the case (1) or shaft (2). As a consequence, the bearings operate at a generally uniform setting over a wide range of temperature variations.
Abstract:
A front or rear torque transfer module system (A) for an all-wheel drive vehicle (V) includes a housing (5) containing two rotating shaft members (10 & 15) connected by a clutch (113). The clutch (113) is activated when a braking mechanism such as an electromagnetic, hysteresis or eddy current brake (260) modulates the relative rotation between a clutch pressure plate (175) and the second rotating shaft member (15). The difference in relative rotation forces two opposing ramped surfaces (65) into opposition to induce the clutch pressure plate (175) to compress a set of interleaved clutch discs (160 & 165) thereby transferring rotational motion between the first rotating shaft member (10) and the second rotating shaft member (15).
Abstract:
A packaged bearing assembly (4) for a full floating axle (a) fits on the end of an axle tube (2) where it serves to couple a road wheel (B) to the axle (A). The bearing assembly (4) includes a housing (12) having external formations (28, 30) for mounting brake components. It also has a hub (14) provided with a drive flange (36) located beyond the outboard end of the housing (12) and a spindle (38) that projects into the housing (12). Finally, the bearing assembly (4) also has an antifriction bearing (16) located within the housing (12) and around the spindle (38) of the hub (14) to enable the hub to rotate relative to the housing and axle tube. The drive flange (38) of the hub (14) provides a mounting for a road wheel (B). An axle shaft (8) extends through the axle tube (2) and through the hub (14) and is removably connected to the hub (14), so that it can be withdrawn without elevating the road wheel (B) off of its supporting surface.
Abstract:
An automotive vehicle (A) has wheels (4) on primary and secondary axles (12,20) to which power from a motor (6) and transmission (26) is delivered through a transfer case (28). The transfer case apportions the torque between the primary and secondary axles to best suit the conditions under which the vehicle operates. The torque for the primary axle passes through the transfer case without experiencing slippage. The torque for the secondary axle is extracted at a torque bias coupling (44,110) which includes a magnetic particle clutch (50) and planetary gear set (52) organized such that two paths exist through the coupling - one a clutch path in which slippage occurs and the other a mechanical path in which no slippage occurs. Most of the extracted torque passes through the mechanical path, but the magnetic particle clutch controls the amount of the torque extracted by the coupling. That coupling dissipates power as a consequence of the slippage in it, and a controller monitors the operation of the clutch to insure that the power dissipation, which manifests itself as heat, does not exceed prescribed limits.
Abstract:
A torque coupling (14) connects the secondary driving wheels (4) of an automotive vehicle (A) indirectly to the power unit (6) of the vehicle (A) through a variable torque coupling (14), while the primary driving wheels (2) on the vehicle (A) are connected directly to the power unit (6). The coupling (14) compensates for variations in the angular velocity of the primary and secondary wheels (2 & 4) while still transferring torque to the secondary wheels (4). The coupling (14) includes a magnetic particle clutch (38) organized about an axis (X) and a planetary gear set (36) organized about the same axis (X). The coupling (14) has two paths through which the torque is transferred, one a mechanical path and the other a clutch path. Most of the torque is transferred through the mechanical path, while the clutch path accommodates for slippage and controls the proportion of torque delivered to the secondary wheels (4), with the control being solely dependent on the magnitude of the current directed through the clutch (38).
Abstract:
An antifriction bearing A capable of transferring radial loads as well as thrust in both axial directions. The bearing A comprises an outer race (2) having a primary raceway (20) and a back face (22) , the back face (22) further having a reverse thrust raceway (26) beyond the small end of the primary raceway (20) . The bearing A also comprises an inner race (4) having another primary raceway (30) . Rolling elements (6) are arranged in a single row between the primary raceways (20, 30) of the races (2, 4) . A backing plate is carried by the inner race (4) and presented opposite the back face (2)2 of the outer race (2) . An antifriction device (10) is located between the reverse thrust raceway (42) of the backing plate (8) and the reverse thrust raceway (26) of the outer race (2) .
Abstract:
A supercharger (A) for an internal combustion engine includes a housing (10) in which an impeller (12, 14) rotates to pressurize the intake manifold (2) of the engine. The impeller is connected to the crankshaft (4) of the engine through a magnetic clutch (18) which enables the impeller to remain at rest or to rotate at a speed that is independent of the speed of the crankshaft and is under control of an engine management system or the operator of the engine.
Abstract:
An electric drive axle (B,C), which is located between and powers the left and right drive wheels (2,4) of an automotive vehicle (A), includes an electric motor (22,84) and left and right torque couplings (24,26). Torque developed by the motor transfers through the torque couplings to axle shafts (10,12) which are connected to the drive wheels. Each torque coupling includes a magnetic particle clutch (42) and a planetary set (44) organized such that the current flowing through the electromagnet of the clutch controls the torque delivered through the coupling. The magnetic particle clutches also accommodate slippage so that the drive wheels may rotate at different angular velocities.
Abstract:
A stabilizer bar (D, E, F) for controlling the roll of an automotive vehicle has left and right sections (16, 18), each provided with a torsion rod (22, 70) and a torque arm (24). The torsion rods are aligned along a transverse axis (X) and attached to a structural component (B) of the vehicle, while the torque arms are connected to the left and right control arms (2) of the vehicle's suspension system (A). In addition, the bar has a coupling (20, 72, 80) between the torsion rods of the two sections for controlling the torsional stiffness of the bar. The coupling includes a rotor (343, 86) fitted to one of the torsion rods and a housing (36, 88) fitted to the other torsion rod, with the housing receiving the rotor, such that a cavities exist between the rotor and housing. Both the rotor and housing carry vanes (44, 56, 82, 104), that alternate so that the vanes of the rotor are located between the vanes of the housing. The cavities contain a magneto-rheological fluid (40, 82). The bar also includes an electrical coil (38, 138) controls the viscosity of the fluid either at the coupling or at a valve (84) located remote from the coupling, but in either place, such that the variations in the viscosity of the fluid control the torsional stiffness of the stabilizer bar.