Abstract: The description is directed broadly to a locking differential, comprising; a pair of rotating bevel gears engaged with one another via at least one pinion gear rotatably supported within a carrier; a locking member disposed within the carrier and engagable with each of the bevel gears, the locking member being movable between a locked configuration and an unlocked configuration, such that in the unlocked configuration the locking member allows free rotation of the bevel gears in engagement with the at least one pinion gear to equalise torque between a first bevel gear and a second bevel gear of the pair, and in the locked configuration the locking member locks the first bevel gear to the carrier and locks the second bevel gear to the carrier, simultaneously, to prevent relative movement therebetween.

Abstract: A differential locking mechanism is disclosed including a differential and a locking mechanism; a rotating shaft is rotatably and symmetrically provided on a shell; a gear A is fixedly provided at one end of the rotating shaft facing outside the shell; a sleeve is fixedly provided at the other end of the shell; a cylindrical gear is rotatably provided on one side of the sleeve close to a half-axle gear; one end of the cylindrical gear having teeth is meshed with the gear A, the other end is fixedly connected with a locking piece B; the locking piece B is rotatably connected to the sleeve; a locking piece C is provided opposite to the locking piece B, completing locking with the locking piece B; a connecting member D is sleeved on the sleeve and rotates together; a shifting fork is movably connected to the locking piece C.

Abstract: An axle assembly having a differential assembly that may include a gear reduction unit, a differential nest, and a coupling. The differential nest may be at least partially received in an inner housing. The inner housing may be rotatable about an axis with respect to an outer housing when the coupling is in a first position. The inner housing may be rotatable about the axis with the outer housing when the coupling is in a second position.

Abstract: A differential assembly can include a case, a first side gear, a second side gear, a first pinion gear, a second pinion gear, a third pinion gear, and a cross-pin assembly. The case can be adapted to be supported for rotation about an output axis. The first and second side gears can be disposed within the case and rotatable about the output axis relative to the case. The first, second, and third pinion gears can be disposed within the case and meshingly engaged with the first and second side gears. The cross-pin assembly can include a spider, first, second, and third pins. The proximal end of the first pin can define a first bore that can receive a post of the spider to couple the first pin to the spider. Each pinion gear can be supported by one of the pins for rotation relative to the case.

Abstract: Limited slip differentials (LSD), methods for making and methods for using such LSDs, and motor vehicles employing an LSD. An LSD for a motor vehicle includes a differential casing that drivingly connects to the driveshaft, and two side gears rotatably mounted inside the casing. Each side gear drivingly connects to a respective axle shaft. One or both side gears includes a respective friction surface. One or more pinion gears are mounted inside the casing and meshingly engaged with the side gears. One or more friction plates are movably mounted inside the casing to selectively engage with and disengage from a friction surface. A centrifugal spring mass, which is mounted to one of the pinion gears, includes circumferentially spaced springs that expand responsive to a predetermined disparity in rotational speed between the side gears and thereby urge the friction plate(s) into engagement with the friction surface(s).

Abstract: A side pinion is disclosed for use with a differential of a mobile machine. The side pinion may have a body with a flat bottom and a flat top located at an end opposite the flat bottom. The side pinion may also have a plurality of gear teeth formed adjacent the flat top, and an arcuate outer surface connecting the plurality of gear teeth to the flat bottom.

Abstract: The invention relates to a multi-disc clutch lock having a differential housing in which a differential pinion between axle bevel wheels, disc sets between the axle bevel wheels and the differential housing is untwisted, but thrust rings are arranged such as to be axially movable. The multi-disc clutch lock comprises outer discs of the disc sets that are non-rotatably connected to the differential housing and inner discs that are non-rotatably connected to the axle bevel wheels. As a result, an introduced driving torque is transmitted via the differential pinion to the thrust rings in order to press the disc sets together with the axial forces produced under load on the oblique contact surface of the differential pinion. An axially movable thrust piece is arranged between at least one disc set and the differential housing in order to transmit a lifting movement initiated by an actuator to the disc set.

Abstract: A differential gear case is provided that includes a container housing of a differential gear, the container housing having on an outer surface thereof an annular flange that extends around an axis of rotation of the container housing, and one of two areas of the container housing that are separated by the annular flange being formed with an opening that is communicated with a containing space formed in the container housing. The area of the container housing that is formed with the opening is provided with a fixing portion used for fixing the differential gear case. The fixing portion includes two flat surfaces that are in parallel with a plane surface containing the axis of rotation of the container housing and arranged around the axis of rotation keeping a space therebetween.

Abstract: A reduction gear with epicyclic gear train including an annulus gear, and at least one planet gear rolling on the annulus gear and able to rotate about a planet spindle borne by a planet carrier is provided. The planet spindle is mounted such that it can itself rotate about its axis relative to the planet carrier. The reduction gear is suitable for mounting in a high bypass ratio jet engine for driving the fan thereof.

Abstract: A hydraulic system for a vehicle clutch assembly can include an on-demand variable displacement pump and a purge valve for regulating hydraulic pressure supplied to the clutch(es). The hydraulic pressure at the pump can have multiple displacement settings to compensate for variable changes in clutch pressure requirements. The purge valve can be configured to purge hydraulic pressure from the hydraulic system so that an optimum, controllable, and/or pre-determined operating pressure can be supplied to the clutch(es). The system can be configured to provide accurate control of clutch(es) when a drivetrain is being automatically controlled to switch between a low gear ratio and a high gear ratio.

Abstract: A selectively locked differential has a locked configuration in which both side gears are independently locked to the differential casing so that torque is not transmitted through the pinion gears. The locking of the side gears is accomplished by generally cylindrical, ring-shaped structures with castellations on one axial end surface of each structure. These castellations selectively interfit with rotatably fixed castellations of secondary structures fixed to the differential casing, such that the ring-shaped structures define a mechanically interconnected, zero-slip arrangement with respect to the rotationally fixed secondary structures when the differential is in the locked configuration.

Abstract: A locking differential having a movable locking ring that can selectively engage a gear of the differential to lock or unlock the differential is disclosed. The locking ring is moved by a pressure source, such as a pneumatic pressure source, and a spring. The locking ring engages a fixed annular ring in the case of the differential. Two O-rings create a seal between sides of the fixed annular ring and arms of the locking differential.

Abstract: A limited slippery differential used in a remote control model vehicle is disclosed to include a housing, a main gear mounted on one side of the housing, two transmission gears mounted inside the housing, and a differential unit mounted in the housing. When the remote control model vehicle is moving over a turn at a high speed, bevel gears of the differential unit are forced into positive engagement with respective transmission gears to reduce the speed of the vehicle wheels that are suspending in the air. When the remote control model vehicle moved over the turn, the bevel gears are forced away from the transmission gears by respective spring members, enabling engine power to be normally transferred to the wheels.

Abstract: A differential lock assembly includes a differential lock and a blocking assembly. The differential lock assembly is movable between a locked position and an unlocked position. The blocking assembly is associated with the differential lock and includes a blocking member and a shape memory member. The blocking member is movable between a blocking position and a non-blocking position. When the blocking member is in the blocking position, the differential lock is inhibited from moving to the locked position. The shape memory member is coupled with the blocking member and configured to receive an activation signal. The shape memory member is configured for actuation between a first length and a second length in response to the activation signal, wherein actuation of the shape memory member between the first length and the second length facilitates movement of the blocking member between the non-blocking and blocking positions.

Abstract: A power divider for motor vehicles includes a housing, a primary shaft and a secondary shaft, wherein a friction clutch having an outer part that is rigidly connected to the primary shaft, and an inner part, derives torque from the primary shaft and delivers the torque to the secondary shaft by means of the inner part and a displacement drive. To ensure a sufficient supply of lubrication oil under all conditions, an oil reservoir, which at least partially surrounds the ramp ring, is fixed in the housing between the coupling and the displacement drive. The base of the oil reservoir comprises at least one opening, which is adjacent to the upper part of the periphery of the ramp ring, and the oil reservoir has at least one guiding device that extends into the centrifugal area of the displacement drive, through which the centrifuged lubrication oil is received in the reservoir.

Abstract: An axle assembly with an electronic locking differential that employs a locking mechanism having components that are fixed to one another along an axis such that they co-translate with one another when the actuator that effects the locking and unlocking of the differential is operated.

Abstract: A differential carrier is disclosed containing sideshaft gears supported in the carrier so as to be coaxially rotatable around a longitudinal axis (A). Differential gears are supported in the carrier on axes of rotation (R) positioned radially relative to the longitudinal axis (A) and have teeth engaging those of the sideshaft gears, and a multi-plate coupling in the carrier to extend coaxially relative to the axis. The carrier includes a flange to which a ring gear can be bolted, and is formed of a dish-shaped part with a base and an integrally formed-on flange and a cover which is axially fixed by an annular securing element. The multi-plate coupling and the cover are positioned in the carrier on the side located opposite the flange and the base.

Abstract: An axle assembly with an electronic locking differential that employs a locking mechanism having components that are fixed to one another along an axis such that they co-translate with one another when the actuator that effects the locking and unlocking of the differential is operated. A method for assembling a differential is also provided.

Abstract: The present invention relates to a limited slip differential with friction using a pressure generating device. The limited slip differential includes a first side pinion gear and a second side pinion gear opposite to each other, a pair of differential pinion gears each of which is rotated in engagement with the first and second side pinion gears friction plates arranged at rear sides of the first and second side pinion gears friction plates arranged at rear sides of the first and second side pinion gears, and a pressure generating device having a cover gear and a piston gear and being constructed such that the cover gear and the piston gear engage with the second side pinion gear and first side pinion gear, respectively, and can be displaced away from each other in a longitudinal direction of the device.

Abstract: The present invention relates to a differential gear equipped with a selectively controllable locking device. Said locking device is self energizing, i.e. it utilizes the differentiation energy (i.e. the possible torque imbalance) to self-lock on its own accord. The control signal is therefore not needed to lock the locking device but rather to selectively control it not to lock itself. Said control signal is designed to, separately for each of the two possible differentiation directions, allow or not allow the locking device to lock. In this way the differential gear will get four different working modes. Said working modes are respectively; open regardless of differentiation direction; open in one differentiation direction but self-locking in the other direction; open in the other direction but self-locking in the first one; self-locking regardless of differentiation direction. A control unit is supplied with sensor data of the present “driving situation”. Said control unit has a steering strategy.

Abstract: A slide-proof structure between an outer wall of a planet gear and a planet frame of a differential mechanism comprises a left half shaft engaged to a left gear; a right half shaft engaged to a right gear; at least one planet gear installed between the left gear and the right gear; a planet frame installed at outer sides of the left half shaft and the right half shaft; the planet frame being formed by two pieces which includes a left sub-frame and a right sub-frame; and a slide proof device installed at an upper outer wall or a lower outer wall of the planet gear and located between the left sub-frame and the right sub-frame of the planet frame. Furthermore, an elastic body is installed at an outer side of the slide proof device; and the elastic body resisting against the slide proof device.

Abstract: An improved differential gear mechanism is characterized by a lockout mechanism (129) operably associated with a latch member (119) that cooperates with a flyweight mechanism (53) to retard differentiating action in the differential gear mechanism. The lockout mechanism (129) includes a lockout member (131) positionable, in response to an input signal, in a normal condition and a lockout condition. In the normal condition, the lockout member (131) permits the latch member (119) to move freely between a locking position and an unlocking position. In the lockout condition, the lockout member (131) prevents the latch member (119) from moving into the locking position.

Abstract: In a multi-disk clutch comprising a rotary body having splines formed thereon so as to extend helically along the surface thereof, with a number of disks having central openings with inwardly projecting teeth via which the discs are in rotationally positively locking engagement with the rotary body, the teeth are twisted so as to extend in a plane normal to the surface of the helically extending splines of the rotary body so that the end face areas of the teeth are in planar contact with the spline surfaces of the rotary body for the transmission of torque between the rotary body and the disks.

Abstract: A differential gear mechanism, of either the locking Cr limited slip type, including a gear case rotatably disposed within an outer housing and a mechanism to limit rotation of side gears relative to the gear case; this rotation limiting mechanism including a member which is axially moveable between a first position and a second position. The mechanism includes a sensor assembly and a sensor element disposed adjacent the gear case. The axially moveable member includes a sensed portion surrounding an annular surface of the gear case, and disposed between the annular surface and the sensor element, in one embodiment. Movement of the sensed portion corresponding to changes within the mechanism between unlocked and locked conditions results in the sensor assembly transmitting an electrical output. The vehicle control logic can know the condition of the differential mechanism and control certain other parts or functions of the vehicle accordingly.

Abstract: An apparatus and method for controlling a limited slip differential uses a solenoid operated valve having an armature attached a differential case of the differential for rotation therewith, and an actuating coil operatively attached to a non-rotating differential housing, for modulating pressure in a hydraulically actuated limited slip device of the limited slip differential. The actuating coil is mounted on a non-rotating plenum, sealed to the differential case with low pressure dynamic seals.

Abstract: A lightweight limited slip differential for a tubular or independent axle assembly. The differential biases the torque applied to the wheels through clutch rings engaged on the pinions. The pinions include a mating surface that engage a similar profile on the clutch rings. The clutch rings may be frictionally restrained or coupled together so that the pinion movement is restrained to bias the torque between the wheels.

Abstract: The differential includes a differential casing configured to be rotatably driven by a motor under a driving force. The differential includes a differential mechanism which includes a pair of first and second side-gears for distributing a torque of the differential casing to first and second output shafts. The differential includes a frictional clutch for interconnecting the first and second output shafts. The frictional clutch includes first and second power-transmitting members connected to first and second output shafts respectively and first and second clutch plates. The first and second clutch plates are connected to the first and second power-transmitting members respectively. The differential includes an actuator for operating the frictional clutch. One output shaft of the first and second output shafts is axially displacable by the actuator under an engagement force to engage the frictional clutch.

Abstract: A differential for racing cars that travel in a given direction around a closed circular or oval track, including an overrunning clutch arrangement for disengaging from the drive train of the differential an outside wheel shaft that overruns the inside wheel shaft during a turn by a given amount, and a locking device for continuously locking the inside wheel shaft to the differential drive train. Preferably, the locking device comprises a locking gear that is non-rotatably splined to the inside wheel shaft and that has pinion teeth that are in continuous engagement with the central drive member of the differential.

Abstract: A differential having a driving member; an input member; first and second rotatable output members; differential gearing operable between the input member and the first and second output members, for transmitting rotation from the input member to the first and second output members and providing for differential rotation of the first and second output members relative to one another; an engaging device operable to establish a driving connection between the driving member and the input member; an inhibiting device operable to inhibit relative rotation between the first and second output members; and an actuating device for causing the operation of the engaging device and the inhibiting device.

Abstract: A differential gear assembly for an automotive vehicle includes a differential housing. A first side gear and a second side gear are substantially axially aligned and spaced apart from one other, each of the side gears being supported by the differential housing for relative rotation therebetween and being adapted to engage an axle half-shaft. A clutch pack is mounted between and interconnects the differential housing and the first side gear. A ball screw assembly is adapted to selectively apply axial force to the clutch pack, thereby locking the first side gear to the differential housing and preventing relative rotational movement of the first side gear and the differential housing.

Abstract: An all-wheel drive differential wherein a pinion, a ring gear of an inner case and a sun gear constitute a center differential for adjusting a speed differential between the front wheels and rear wheels of a vehicle, and helical teeth on the pinion, the ring gear, the sun gear and friction washer function as the differential limitation of the center differential, while a front differential formed with a differential using spider pinions in the inner case function as a differential limitation of the front differential by equipping a clutch pack at the front differential, thereby enabling to construct the all-wheel drive differential in a simple and compact fashion.

Abstract: In a motor-vehicle drive train containing a differential, which has an differential input part and two differential output parts, a friction clutch with a limited transmittable torque is arranged between two of the differential parts, so that, with a small predetermined difference in torque between the two coupled differential parts, said friction clutch can slip to accommodate torque shocks. A temperature-dependent adjusting means is provided, which reduces the clutch engagement pressure with increasing clutch temperature.

Abstract: A differential gear assembly for an automotive vehicle includes a differential housing. A first side gear and a second side gear are substantially axially aligned and spaced apart from one other, each of the side gears being supported by the differential housing for relative rotation therebetween and being adapted to engage an axle half-shaft. A clutch pack is mounted between and interconnects the differential housing and the first side gear. A ball screw assembly is adapted to selectively apply axial force to the clutch pack, thereby locking the first side gear to the differential housing and preventing relative rotational movement of the first side gear and the differential housing.

Abstract: A wheel driving system is capable of varying differential limiting torque applied to a differential included in an all-terrain vehicle according to the difference between loads respectively applied to the right and the left wheel of the vehicle, which varies depending on the traveling condition or turning condition of the vehicle. Right and left wheels are connected through a differential gear mechanism (30) having a differential case (46) and held in a reduction gear case (13), an input pinion (22) and a drive shaft to an engine. The differential case (46) and a differential gear shaft (36) connected to the wheel are interlocked by a wet multiple-disk differential limiting mechanism (31) having a friction clutch mechanism immersed in oil. The multiple-disk differential limiting mechanism (31) is operated by a multiple-disk differential limiting mechanism operating mechanism to vary differential limiting torque.

Abstract: An electronically controlled axle assembly having an electronically controllable valve secured to the differential case to control pressure within a hydraulically actuated clutch pack there within. The clutch pack operates to selectively couple a pair of shafts.

Abstract: An axle assembly including a housing in which is mounted a transmission, axle shafts and a differential assembly including drive gears engaged to the axle shaft and at least one planet gear mounted on a shaft and engaged to the drive gears. The differential assembly includes a friction member on the shaft for engaging the planet gear.

Abstract: A speed-sensitive, limited-slip, geared differential mechanism for transferring driving torque to each of two torque output shafts. Side gears located in a planetary gear carrier housing, one side gear being drivably connected to one pump member of a positive displacement pump and the planetary gear carrier being connected to another pump member. The pump is supplied with silicone fluid from a fluid reservoir. The pump creates a hydrostatic torque bias when differential motion of the side gears occurs as silicone fluid circulates through the pump.

Abstract: A locking differential gear mechanism of the type which can operate in either a manual mode or an automatic mode. The mechanism includes a gear case (11), and differential gearing including a side gear (23). The side gear (23) includes a flange portion (43) having a set of gear teeth (45), and adjacent thereto is a locking member (47), also having a set of gear teeth (49), disposed to engage the gear teeth on the flange portion. A ball ramp actuator is disposed adjacent the locking member (47), which is preferably integral with an inner actuating plate (57). There is an outer actuating plate (59), preferably disposed outside the gear case (11), and a set of cam balls (73) operable with the actuating plates (57,59) to cause ramp-up, and engagement of the gear teeth (45,49). An electromagnetic coil assembly (75) is disposed adjacent the ball ramp actuator, and is operable to retard rotation of the outer actuating plate (59), and initiate ramp-up, in response to an electrical input signal.

Abstract: A limited slip differential gear that is simple in construction, small in size and light in weight is provided. The limited slip differential gear includes a pair of divided gear cases that are turned by a driving force of an engine. A pressure ring provided in one of the gear cases is movable in the direction of the wheel axles. Pinion shafts each have an end that is freely engageably supported between the pressure ring and the gear cases. Pinion gears are turnably supported by the pinion shafts. A pair of side gears mesh with the pinion gears positioned therebetween to transmit the driving force to both wheel axles. A multiple disc clutch mechanism provided between one of the gear cases, the side gears and the pressure ring limits differential motion of the side gears when the pressure ring is moved in an axial outward direction.

Abstract: A differential gear assembly includes a disc-shaped input gear receiving drive force and having a central portion, an outer portion around the central portion, and one or more open space portions formed between the central portion and the outer portion. A pair of output shafts extend opposite each other along the axis of the input gear and one end of each of the output shafts is loosely fitted in a central bore formed in the central portion of the input gear. A pair of side bevel gears is provided each of which is fixedly attached near the end of each output shaft closer to the input gear. One or more support shafts extend radially from the central portion into the open space portions of the input gear. One or more bevel pinions is rotatably supported on the one or more support shafts, respectively, to mesh with the pair of side bevel gears. A friction mechanism is located in at least one of one or more open space portions that permits the bevel pinion to rotate with rotational resistance.

Abstract: A limited slip differential gear mechanism, particularly for use with automotive vehicle axles, comprising differential side gears connected drivably to each of two driving axles for the vehicle. A pair of pressure plates splined to the carrier define a pair of opposed ramps. They are engaged by differential pinions carried by a pinion shaft. The pinions engage each of the two side gears. A friction clutch assembly is situated adjacent each side gear. The pressure plates transfer an axial component of the thrust force created on the ramp surfaces as torque is transmitted through the pinions and through each side gear to each of two axle shafts. Each friction clutch assembly includes friction disks carried by the side gears and by the carrier so that a bias torque is established as one axle shaft overspeeds the other. A hydrostatic pump has one pump member connected to the carrier and another connected to one of the axle shafts.

Abstract: A controlled traction cartridge for use in connection with a differential. The catridge generally comprises a shaft, a gear mounted on the shaft and rotatable with respect thereto, and an interior bearing surfaces associated with the shaft. The gear is maintained in frictional engagement with the interior bearing surface for inhibiting the rotation of the gear.

Abstract: A locking differential comprising a differential carrier1 housing a pair of bevel gears 2, 3 and at least one pinion gear 4 which meshes with the pair of bevel gears, a locking ring 6 positioned within the differential carrier1 between the carrier and one of the bevel gears and splined to the carrier 1 at 7 and 8, locking teeth 9 on the locking ring 6 and corresponding locking teeth 10 on the bevel gear 3, an annular cylinder 12 formed in the carrier 1 and receiving a piston 11 and seal 11 a, the piston 11 being integral with the locking ring whereby the charging of the cylinder 12 with compressed air causes the locking ring 6 to move into its locking position with the teeth 9 engaging the teeth 10 against the action of springs 13 to lock the differential. The locking ring is located within a shaped cover plate C which closes the differential carrier 1 and provides bearing support for the bevel gear 3.

Abstract: A torque proportioning differential mechanism (1) for transmitting drive to at least two wheels of a vehicle. The differential includes a carrier (2) adapted to be rotatably driven about a first axis (3) and a plurality of inner peripherally spaced pinion-locating formations (6) defining respective inwardly directed carrier thrust surfaces (7). A pair of spaced apart bevel side gears (4,5) are respectively adapted for connection to the wheels and supported for rotation about a common axis (3) fixed with respect to the carrier. A plurality of peripherally spaced floating shaftless bevel pinions (8) are disposed in meshing engagement with both the side gears (4,5). Each pinion defines a complementary outer pinion thrust surface (9) nestingly disposed closely adjacent a respective one of the locating formations.

Abstract: A limited slip differential includes a case which is rotatably driven by a power source. A cross shaft is mounted within the case for rotation therewith. A pair of pinion gears are rotatably mounted on the ends of the cross shaft. The pinion gears mesh with side gears splined onto respect axle shafts. Thus, when the case is rotated, torque is transmitted through the cross shaft, the pinion gears, and the side gears to the axle shafts. A pair of Belleville springs are mounted to the cross shaft adjacent to the pinion gears. A hollow cylindrical spacer is disposed about the cross shaft between the two Belleville springs. The Belleville springs react against the ends of the spacer to urge the pinion gears apart from one another into frictional engagement with respective thrust washers disposed between the pinion gears and the case. As a result, the rotation of the pinion gears is restricted, thus limiting the free wheeling action of the differential.

Abstract: A limited slip differential for limiting differential rotation between a differential casing and axles via a frictional connection includes a pinion shaft rotating integrally with the differential casing and a pinion gear attached rotatively to the pinion shaft. A side gear engages with the pinion gear and is mounted loosely with respect to the axles. A first cam portion formed on the side gear engages with a second cam portion formed on a driving member which is spline-engaged with one of the axles, supporting the side gear and supported by and centered on the differential casing. A frictionally connecting clutch is disposed between the driving member and the differential casing.

Abstract: Disclosed is a differential mounted between two drive wheels of a vehicle, the differential having a lock-out mechanism for disabling the differential and forcing the drive wheels to rotate at the same speed.

Abstract: A limited slip differential includes four pinions formed of straight bevel gears and a pair of side gears formed of straight bevel gears. A pressure angle of a first surface of each of a plurality of teeth provided on each pinion is formed larger than that of a second surface thereof and pressure angles of third and fourth surfaces of each of a plurality of teeth provided on each side gear are respectively equal to the pressure angels of the first and second surfaces.