| Patent Number |
Title Of Patent |
Date Issued |
| RE39838 |
Bearing assembly with sensors for monitoring loads |
September 18, 2007 |
| A bearing assembly which couples a road wheel to a suspension system component on an automotive vehicle includes a hub to which the wheel is attached and a housing which is attached to the suspension system component. The housing has two tapered raceways which surround raceways on co |
| 7452134 |
Bearing assemblies with seals |
November 18, 2008 |
| A bearing assembly (A-H) enables one member (4) to rotate relative to another member (2) about an axis (X). It includes a bearing (6) having an inner race (54) on one of the members, an outer race (74, 126, 164, 250) in the other member, and rolling elements (58) between raceways on the |
| 7422537 |
Torque split hydraulic coupling between transmission and secondary driving axle with torque modu |
September 9, 2008 |
| A power transmission system coupling (100) configured to provide a responsive and controllable clutch (110) using a torque split arrangement including a planetary gear set (106) for torque modulation, together with a locking device (134) to maximize torque transfer capability when mo |
| 7410442 |
Transmission containing helical gearing and bearing arrangement therefor |
August 12, 2008 |
| A transmission for a wind turbine includes a housing (20) in which two shafts (26, 28) rotate, each being supported on a locating bearing (50, 60) which transmits thrust loads to the housing as well as radial loads and on a nonlocating bearing (48, 58) which transmits only radial loads |
| 7410017 |
Electric drive axle |
August 12, 2008 |
| An electric drive axle, which is located between and powers the left and right drive wheels of an automotive vehicle, includes an electric motor and left and right torque couplings. Torque developed by the motor transfers through the torque couplings to axle shafts which are connected |
| 7393141 |
Bearing arrangement for a vehicle differential |
July 1, 2008 |
| A vehicle differential includes a housing having bearing seats and a carrier provided with stub shafts which project into the bearing seats. The carrier is supported in the housing on two single row tapered roller bearings which allow the carrier to rotate, but confine it radially and |
| 7300379 |
Differential with thin film coating at cross shaft and processes for manufacturing the same |
November 27, 2007 |
| A process for improving the durability of a differential, where the differential has a pinion shaft and a pinion, the pinion shaft having a surface that contacts the surface of the inner diameter of the pinion. The process comprises bonding to the surface of the pinion shaft or the p |
| 7297086 |
Epicyclic gear systems |
November 20, 2007 |
| An epicyclic gear system (A, B), which is highly compact, yet capable of transferring substantial torque, includes a sun gear (2, 62), a ring gear (4, 64) around the sun gear, and planet gears (6, 8, 66, 68) organized in two rows between the sun and ring gears. In addition, the gear syst |
| 7264567 |
Wedge loading mechanism for traction drives |
September 4, 2007 |
| A wedge loading mechanism for an eccentric planetary traction drive in which a roller having a flexibly mounted shaft is positioned between two raceways forming a convergent wedge. Rotation of either of the two raceways wedges the roller within the convergent wedge squeezing the roll |
| 7243768 |
Clutch having a variable viscosity fluid |
July 17, 2007 |
| A clutch (A,B) includes a cam (20,70) and a rotor (22,74), both of which revolve around a common axis (X). The cam has a camming surface (30,72) provided with lobes (32), whereas the rotor carries pistons (26,80) which bear against the camming surface of the cam. The pistons project from |
| 7240570 |
Load-sensing bearing |
July 10, 2007 |
| A load sensing bearing assembly comprises a bearing outer race secured to an application structure by a flange assembly incorporating a plurality of anisotropic spring regions which enable a limited range of displacement and/or rotation of the bearing outer race relative to the appli |
| 7238140 |
Differential with torque vectoring capabilities |
July 3, 2007 |
| A differential for delivering vectored torque to left and right axle shafts that rotate about an axis includes a cage which rotates about the axis as a consequence of torque applied to it. The cage contains gearing that transfers the torque to the axle shafts while accommodating for |
| 7219938 |
Backing ring for railcar axle |
May 22, 2007 |
| A backing ring that serves to back an antifriction bearing on the journal of a rail car axle includes an annular body that seats against a fillet that is located at the end of the journal and also a lip that projects over a larger dust guard diameter that is located on the axle immediate |
| 7207574 |
Stabilizer bar with variable torsional stiffness |
April 24, 2007 |
| A stabilizer bar for controlling the roll of an automotive vehicle has left and right sections, each provided with a torsion rod and a torque arm. The torsion rods are aligned along a transverse axis and attached to a structural component of the vehicle, while the torque arms are con |
| 7175350 |
Thermally compensated bearing system |
February 13, 2007 |
| A shaft rotates in a housing on two single row tapered roller bearings mounted in opposition such that the raceways of the one bearing taper downwardly toward the raceways of the other bearing. The metal from which the housing is formed has a higher coefficient of thermal expansion than |
| 7174269 |
Speed sensing method and apparatus |
February 6, 2007 |
| 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 (1 |
| 7165471 |
Thermally compensated differential |
January 23, 2007 |
| A thermally compensated differential comprises a housing, a pinion gear mounted into the housing, a differential case carrying a ring gear with the case being supported by a first roller bearing and a second roller bearing with the bearings being mounted indirectly, and the first and |
| 7153230 |
Eccentric planetary traction drive transmission with flexible roller for adaptive self-loading m |
December 26, 2006 |
| An eccentric planetary traction drive transmission which includes at least two planetary rollers, sun roller member, and a carrier member. One of the planetary rollers is flexible and is positioned between and in contact with an outer ring member and the sun roller member. Rotation of |
| 7147380 |
Pressure screw assembly primarily used with an axially guided locking ring to permit controlled |
December 12, 2006 |
| A locking ring assembly retains a bearing to a shaft rotatably supported on a first axis of rotation. Guide pins or rods extend axially from an annularly shaped bearing retainer slideably disposed on the shaft towards the pressure ring, also slideably disposed on the shaft. The heads of |
| 7110910 |
Method and apparatus for determining the straightness of tubes and bars |
September 19, 2006 |
| A method and apparatus for automating the measurement of straightness of linear stock material produced by the operation of a mill. As the linear stock material exits from the mill, sensors acquire a sequence of image or distance measurement pairs associated with the material at discrete |
| 7108427 |
Wheel end with rotation sensor |
September 19, 2006 |
| A wheel end (A, B, C) for mounting a road wheel (W) of an automotive vehicle includes a knuckle (2) having a bearing cavity (20, 24, 26), a hub having a spindle (40) that projects into the bearing cavity of the knuckle and a flange (42) at one end of the spindle, with the road wheel |
| 7093505 |
Speed sensor and method of attaching the same |
August 22, 2006 |
| A speed sensor (B, C) produces a signal that reflects the angular velocity of a shaft (4) which rotates in a case (2) having a mounting surface (10), beyond which the shaft projects to provide a target (6), and threaded holes (12) which open out of the mounting surface. The speed sen |
| 7070530 |
Method and apparatus for power flow management in electro-mechanical transmissions |
July 4, 2006 |
| A method for power management in an electro-mechanical power-split infinitely variable transmission (eVT) designed to be operated within a designated speed ratio range for vehicular applications. The eVT is comprised of an input shaft coupled to the output shaft of a drive engine to |
| 7070402 |
Integrated speed reducer and pump assembly |
July 4, 2006 |
| An integrated speed reducer and gerotor pump is disclosed. The device comprises a motor, a speed reducer, and a gerotor pump. The motor provides torque at an elevated speed. The speed reducer is coupled with the motor and converts the torque at an elevated speed into torque at a redu |
| 7056259 |
Epicyclic gear system |
June 6, 2006 |
| An epicyclic gear system (A) has a sun gear (2), a ring gear (4) located around the sun gear, and planet gears (6) located between and engaged with sun and ring gears. In addition, it has a carrier (8) including a carrier flange (30) offset axial from the planet gears, carrier pins (34) |
| 7044877 |
Two speed transmission with smooth power shift |
May 16, 2006 |
| A two speed transmission having an input shaft and an output shaft, the two speed transmission being capable of changing the rotating speed of the output shaft from a first speed ratio to a second speed ratio, the shift between the first rotating speed ratio and the second rotating s |
| 7029414 |
Hub assembly with speed change |
April 18, 2006 |
| A hub assembly includes a carrier that is attached to a supporting structure, a shaft having a pair of sun rollers located in the carrier, a hub having a pair of rings, each surrounding a different sun roller, and planet rollers arranged in two rows between the sun rollers and the ri |
| 7018316 |
Planetary traction drive with multiple inputs |
March 28, 2006 |
| A traction drive has inner and outer rings and drive and idler rollers organized in two rows between the rings, with the drive rollers being in an inner row and the idler rollers being in an outer row. The drive rollers contact the inner ring and the idler rollers contact the outer r |
| 7000717 |
Output power split hybrid electric drive system |
February 21, 2006 |
| A power split hybrid wheel drive system of the present invention comprises a planetary gear train (16) coupled to the output shaft of a driving engine (12). A primary motor or generator (18) is coupled to an output shaft of the planetary gear train (16) for receiving power therefrom, and |
| 6994651 |
Epicyclic gear system |
February 7, 2006 |
| An epicyclic gear system has a sun gear, a ring gear, and planet gears between the sun and ring gears. In addition, it has a carrier including a carrier flange offset axially from the planet gears and carrier pins that project from the flange into the planet gears, each with a shank anch |
| 6994646 |
Electro-mechanical infinitely variable transmission |
February 7, 2006 |
| 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 an |
| 6994475 |
Coated rolling element bearing cages |
February 7, 2006 |
| A rolling element bearing comprises an inner ring (3) and an outer ring (2) each provided with a raceway (4, 5), said rings having land regions (10, 11) on opposite sides of their raceways, and a series of rolling elements (6) which are in rolling contact with the raceways and which are |
| 6993852 |
Gauge and process for adjusting bearings |
February 7, 2006 |
| A setting gauge (G) determines the thickness of a spacer (22) which gives the correct setting for a pair of tapered roller bearings (B1, B2) that are mounted in opposition to accommodate relative rotation between machine components (S, H). The gauge has a base (50) which at one end f |
| 6981930 |
Integrated electric motor and traction drive |
January 3, 2006 |
| An integrated electric motor and traction drive is disclosed. The device comprises an electric motor and a traction drive. The electric motor provides power at a high angular velocity to a sun roller. The sun roller transfers the power to the traction drive which reduces the power to a |
| 6974011 |
Directional clutch |
December 13, 2005 |
| A bi-directional clutch permits the unidirectional transfer of torque between inner and outer races in either direction of rotation, depending on how the clutch is set. The outer race has a cylindrical raceway presented inwardly toward the inner race, whereas the inner race has reces |
| 6964627 |
Output-split and compound-split infinitely variable transmission |
November 15, 2005 |
| A transmission includes two planetary units (U1, U2) and two variators (V1, V2), all connected together such that power can be transferred between an input (I) and an output (O) in a compound-split mode or an output-split mode. In the compound-split mode the two planetary units are joine |
| 6948707 |
Stabilizer bar having variable torsional stiffness |
September 27, 2005 |
| A stabilizer bar (D) for controlling the roll of an automotive vehicle has left and right sections (16, 18) joined together at a coupling (20) including a housing (36) on one of the sections and on a rotor (38) on the other section, with the rotor being in the housing. The coupling also |
| 6935005 |
Installation of, a hub/bearing assembly for an automotive vehicle |
August 30, 2005 |
| A tool facilitates the installation of a hub/bearing assembly on a CV joint during the assembly of an automotive vehicle. The hub/bearing assembly has a housing, a hub provided with a spindle that projects into the housing, and a bearing between the spindle and housing to enable the hub |
| 6922004 |
Axial flux motor assembly |
July 26, 2005 |
| A power unit assembly which has a pair of mirrored axial flux electric motors having a common axis of rotation, each axial flux motor including a rotor disposed on a rotor shaft and at least one stator disposed in operative relationship to said rotor. A common end plate is disposed b |
| 6896270 |
Sealing device for a bearing arrangement |
May 24, 2005 |
| There is provided a sealing device (10) for a unitised grease-or oil-lubricated package bearing assembly comprising a twin outer race (14) and two inner races (15, 16) arranged next to each other on a shaft (12), with their faces abutting. Typically, oil may be present between the said |
| 6895855 |
Hydraulic motors and pumps with engineered surfaces |
May 24, 2005 |
| Engineered surface treatments are applied to different types of hydraulic motors and pumps to improve the life of the contacting surfaces in said motors and pumps. The engineered surface treatments are selected from texture modifications and tribiological coatings and selectively applied |
| 6870363 |
Speed sensor target wheel with improved retention capability |
March 22, 2005 |
| An improved target wheel is provided for a bearing speed sensor. The target wheel includes an annular base which is sized to be press fit on a seat or extension of the inner race of a bearing. The base includes a first end and a second end. A plurality of encoding elements, in the form o |
| 6863749 |
Method of improving the toughness of low-carbon, high-strength steels |
March 8, 2005 |
| A method of post-solidification processing to minimize the content of extremely coarse grain-refining precipitates that may form during solidification is low-alloy and alloy high-strength steels containing approximately 0.09-0.17% by weight C so as to provide improved toughness in a |
| 6814494 |
Sealed spherical roller bearing for dragline swing shaft |
November 9, 2004 |
| A spherical roller bearing having a sealing arrangement and a closure arrangement to prevent the loss of lubricants from the bearing and to prevent the entrance of contaminants into the bearing. |
| 6796031 |
Process for setting bearings and verifying force preload |
September 28, 2004 |
| A pair of tapered roller bearings, which are located between two machine components, such as a pinion shaft and its carrier, to enable the one component to rotate relative to the other one, is set to a desired dimensional preload with the aid of a gauge and the force preload in the b |
| 6792815 |
Multiaxis ring load cell |
September 21, 2004 |
| A ring load cell configured to measure force, moment, and temperature components in an orthogonal three-axis coordinate system. The ring-load-cell structure consists of two annular flanges having a common central axis through which a shaft may be disposed. The annular flanges are int |
| 6786645 |
Mounting for vehicular road wheel |
September 7, 2004 |
| A mounting for the road wheel of an automotive vehicle includes a spindle, a hub located around the spindle and inboard and outboard tapered roller bearings located between the hub and spindle where they are mounted in opposition. The cones (inner races) of the two bearings are separated |
| 6776552 |
Ball joint with spherical rollers |
August 17, 2004 |
| A ball joint which uses spherical rollers to reduce the torque friction which tends to inhibit the rotation of the ball within a ball joint assembly. Two sets of spherical rollers are captivated between the ball and two liner rings in the ball joint housing. The ball has two annular |
| 6772648 |
Method and apparatus for determining bearing parameters |
August 10, 2004 |
| A method for determining bearing parameters such as the radial load or interference fit of a bearing having a inner or outer race, secured by the interference fit with its mounting component, which experiences angular rotation relative to the mounting component in response to the radial |
| 6770007 |
Epicyclic drive with unified planet assemblies |
August 3, 2004 |
| An epicyclic drive has its planet gears integrated into separately built planet assemblies. Each planet assembly, in addition to its planet gear, includes a pin which extends through the planet gear and an antifriction bearing located between the gear and the pin. The outer raceways for |
