| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 475226000 | Planet pinion is worm gear | 9 |
| 20100144484 | TORQUE PROPORTIONING DIFFERENTIAL - A differential gear mechanism including a gear case having a body defining a gear chamber having a pair of opposed openings with a pair of output gears rotatably supported in the gear chamber adjacent to the openings. At least one of the output gears has a hub with a tapered portion facing an adjacent opening. At least one of the openings includes an inner chamfer portion that corresponds to an adjacent tapered portion. The gear case and gear set cooperate to move the output gear such that the tapered portion is disposed in frictional, torque translating engagement with a chamfered portion to bias torque translated through the differential to the output shafts under predetermined conditions. | 06-10-2010 |
| 20100151982 | Helical Differential Assembly With Preloaded Adjustment Mechanism - A vehicle differential assembly includes a differential housing rotatable about an axis. A first output assembly includes a first side gear positioned within the differential housing and a first output member coupled to the first side gear and having an aperture aligned with the axis. A second output assembly includes a second side gear positioned within the differential housing and a second output member coupled for rotation with the second side gear. A first helical pinion gear is meshingly engaged with the first side gear. A second helical pinion gear is meshingly engaged with the second side gear and the first helical pinion gear. A first coupling assembly includes a coupling mechanism disposed in the aperture and a biasing member engaged with the coupling mechanism to bias the first output assembly into frictional engagement with the differential housing. | 06-17-2010 |
| 20100261568 | GEAR TRAIN WITH SPLIT TORQUE - A gear train is provided that includes at least one side gear comprising a helical face gear and a plurality of helical pinions in meshing engagement with the helical face gear. The gear train may further include an absorber configured to provide an axial force on at least one of the plurality of helical pinions. A differential may also be provided including a differential case and a gear train disposed in the differential case. The gear train includes at least one side gear comprising a helical face gear and a plurality of helical pinions in meshing engagement with the helical face gear. The gear train in the differential may further include a means for providing an axial force on at least one of the plurality of helical pinions. | 10-14-2010 |
| 20100317481 | All Gear Crossed-Axis Differential - An all-gear differential designed primarily for motor vehicle use, employing a “cross-axis” arrangement defined by a pair of helical “side” or “S” gears rotatable about a common first axis and mountable on respective opposite vehicle axles, and one or more pairs of “balance” or “B” gears rotatable about second axes orthogonal to the first axis. The B gears have helical central portions for meshing with the helical S gears, and have spur gear end portions for meshing with each other. The B/S helical gear tooth ratio between each balance gear and its respective side gear greater than 0.60 and preferably is about 0.75, and the B/S helical angle ratio between each balance gear and its respective side gear is less than 43°/47°, more preferably is less than 40°/50° and about 35°/55°, and most preferably is about 27°/63°. | 12-16-2010 |
| 20100317482 | LIMITED SLIP DIFFERENTIAL USING FACE GEARS AND A PINION HOUSING - A differential includes a differential case; a side gear comprising a helical face gear; a helical pinion configured for meshing engagement with the side gear; and a pinion housing configured to support the helical pinion. The pinion housing includes a first face; a second face opposing the first face; a first projection located on the first face; and a second projection located on the second face. In some embodiments, the differential further comprises an actuator configured for engagement with the pinion housing and a plurality of friction plates disposed between the actuator and the differential case. The pinion housing also includes an aperture or hole extending radially inwardly from an outer radial surface of the generally annular ring; and a channel extending from the first face to the second face, wherein the channel is substantially radially aligned with the aperture or hole. | 12-16-2010 |
| 20130130860 | LIMITED SLIP DIFFERENTIAL USING FACE GEARS AND A PINION HOUSING - A differential includes a differential case; a side gear; a pinion configured for meshing engagement with the side gear; and a pinion housing configured to support the pinion. The pinion housing includes a first face; a second face opposing the first face; a first projection located on the first face; and a second projection located on the second face. The pinion housing also includes an aperture or hole extending radially inwardly from an outer radial surface of the generally annular ring; and a channel extending from the first face to the second face, wherein the channel is substantially radially aligned with the aperture or hole. In embodiments, the pinion housing includes one or more transfer formations configured to transfer torque from the differential case, and the pinion housing is configured to permit movement in an axial direction between a pair of side gears. | 05-23-2013 |
| 20150377335 | HELICAL LIMITED SLIP DIFFERENTIAL - A helical LSD includes a case defining an inner cavity and a plurality of grooves disposed around the inner cavity. In addition to the case, the helical LSD includes a plurality of pinion gears. Each pinion gear is disposed in one of the grooves and includes a plurality of gear teeth. Each gear tooth has a top land. The helical LSD further includes at least one helical output gear disposed in the inner cavity of the case. The helical output gear meshes with the pinion gears, and the pinion gears are disposed around the helical output gear. The top land has a surface profile characterized by raised portions and indentations in order to minimize noise and vibration when the pinion gears rotate relative to the case. The surface profile can also be applied to contact surfaces of power transfer units and transfer cases. | 12-31-2015 |
| 475227000 | And spur gear on pinion | 2 |
| 20090017961 | Transmission Unit For Vehicles - The invention is a transmission unit with orthogonal axes for vehicles, comprising: a drive shaft ( | 01-15-2009 |
| 20090149291 | ALL-GEAR FULL TRACTION DIFFERENTIAL GEAR SET - A compact, all-gear full-traction differential including meshing pairs of side gears and worm wheel balance gears wherein the numbers of teeth in the spur gear portion and worm wheel portion of each balance gear and in each side gear are all evenly divisible by 2 or by 3, preferably by both 2 and 3. Examples of such a configuration are: spur=12 teeth; worm wheel portion=6 teeth; side gear=12 teeth or spur=18 teeth; worm wheel portion=6 teeth; side gear=12 teeth. The invention is applicable to all cross-axis differential gear assemblies. | 06-11-2009 |
