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7637832 |
Vehicle transmission
A vehicle transmission has a planet gear rotatably connected to an input shaft. A sun gear and an annulus gear are drivingly connected to the planet gear. A hydraulic pump is drivingly connected to...
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7025700 |
Closed-loop hydraulic adjustable slip differential
A vehicle differential which includes an integral positive displacement pump, along with adjustable fluid controls and a movable surface for holding fluid controls in position, infinitely from full...
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6962546 |
Limited slip differential using fluid coupling
A fluid coupling employing a viscous fluid to produce a limited slip differential assembly. The fluid coupling is disposed within a differential casing along with a pair of side gears. The fluid...
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6783474 |
Torque controller for controlling torque to two or more shafts
A vehicle, such as an automobile or a truck, is equipped with a mechanism to control output torque to two or more shafts. The mechanism is most usefully adapted to an axle in order to allocate...
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6634976 |
Speed variator transmission
A continuously variable ratio transmission includes a planetary gear set connected to a prime mover having first and second output shafts. The first output shaft is connected in a hydraulic braking...
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6544137 |
Differential device
A differential device for coupling an input shaft, a first output shaft, and a second output shaft is provided. The differential device preferably includes a differential case with a first side...
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6533698 |
High bias differential lock
An improved differential lock is self-setting. A movable lock member is driven to reciprocate between two hydraulic chambers at a speed which increases when there is increasing relative movement...
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6360156 |
Method and system of determining an acceptable torque level to be applied to at least one clutch pack of an automobile
A method is provided for determining an acceptable torque level to be applied to at least one clutch pack (of an automobile) which includes the requirement of internal slip to transmit torque. The...
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6357571 |
Hydraulic device to limit slip
A hydraulic device to limit slip can be used in the vehicle's main differential and the vehicle's inter-axle differential. The device includes a cylinder body connected to an input shaft, pistons...
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6254506 |
Transmission for four-wheel drive vehicle
A motor vehicle transmission has a differential assembly (17) in which one input, sun gear (39), of an epicyclic gear train can be selectively coupled by a sleeve (59) through a viscous coupling...
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6183387 |
Variable pressure relief system for hydraulically actuated limited slip differentials
The present invention relates generally to hydraulically actuated limited slip differentials. More particularly, the present invention relates to a hydraulic limited slip differential which...
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6001039 |
Rotational speed difference sensitive type joint assembly
A working oil receiving chamber 8 is provided with an expanding and contracting member 12. The expanding and contracting member 12 is comprised of an expansible and contractible bellows 2a made of...
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5971881 |
Variable speed transmission and transaxle
A variable speed, reversible transmission that utilizes two gerotor pumps for variable controlling the speed of the output shaft or axle. A rotatable input member connectable to a drive source...
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5938556 |
Differential speed-sensitive and torque-sensitive limited slip coupling
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...
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5785622 |
Differential gear
A differential gear includes a rotatable housing, a first output shaft connected to a first gear element and a second output shaft connected to a second gear element of a differential planet gear...
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5611746 |
Vehicle drivetrain coupling
A hydraulic coupling (32,32a) includes a lock (204) for selectively preventing the level of torque transmitted from a coupling casing (34) to a pair of rotary members (26,28) from affecting torque...
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5601508 |
Bevel gear differential lock
A locking device for a bevel gear differential having an insert (5) mounted on its own axis (4) which is also the axis of the planet bevel (3). The insert is situated between the opposing bevel...
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5597369 |
Transfer case with integrated viscous coupling
A transfer case for a four-wheel drive vehicle adapted to provide two- to four-wheel drive on-demand in the high range or four-wheel drive in the low range. The transfer case includes an input...
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5547430 |
Drive assembly for a four wheel drive vehicle having a first and second viscous coupling
A drive assembly for a four wheel drive vehicle has, in the region of the front axle, a distributor assembly 5 which includes the distributor differential 13 for distributing the driving torque...
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5458547 |
Differential apparatus with speed and torque sensitive differential limiting forces
A differential apparatus comprises: a differential casing; a first side gear rotatably arranged within the differential casing and connected to the first shaft; a second side gear rotatably...
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5338266 |
Differential transmission device and viscous coupler, especially for a motor vehicle
There is provided a device which incorporates a viscous-fluid coupling (68) and a friction clutch (74) in which are integrated actuation means (80, 81) which cause the engagement or the release of...
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5263905 |
Arrangement for driving two wheels of the same axle in rotation, with a regulation of their rotational speeds
The invention provides an arrangement for driving in rotation two transmission shafts (18) of a motor-driven road vehicle, each connected to a wheel of the same axle, characterised in that each of...
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RE34209 |
Variable speed transmission
Differential-gearing devices are disclosed in which the differential pinion gears are controlled to induce a speed difference between output shafts, provide a locking and limited slip differential...
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5194053 |
Rotational speed differential responsive type control coupling with variable transfer torque control means
A transfer torque control device for a rotational speed responsive type control coupling is provided for providing a desired variation of a transfer torque in response to a variation of a...
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5162024 |
Rotational speed differential responsive type control coupling
In a rotational speed differential responsive type control coupling, restrictions of a fixed opening are provided for restricting discharge of oil through discharge passages and thereby producing...
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5137130 |
Controlled type rotation speed difference sensitive coupling
A controlled type rotation speed difference sensitive coupling is disclosed, which is for use between first and second rotatable members. The coupling comprises a drive housing connected to the...
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5086867 |
Power transmission apparatus
To simplify propeller shaft supporting structure and to reduce propeller shaft vibration when a viscous coupling and a clutch mechanism are both provided on a propeller shaft of a 4WD vehicle, the...
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5083988 |
Central differential for a four-wheel drive motor vehicle
A central differential is composed of a planetary gear device. The planetary gear device comprises a first sun gear connected to an output shaft of a transmission, a carrier, a pinion set...
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5078661 |
Differential
A differential for use in a car includes a case rotatable around an axis, an input gear fixed to the case, coaxial with the axis of the case, a pair of output shafts which are rotatably supported...
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4983150 |
Differential gear apparatus with differential limitation mechanism
In a differential gear apparatus provided with a differential limitation mechanism, to prevent a washer interposed between the differential case and the coupling case from being seized by heat when...
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4982808 |
Viscous shear coupling
A viscous shear coupling, comprising a first part in the form of a housing (2), a second part (3) disposed within the housing to define an annular closure therebetween, a first set of annular...
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4923029 |
Drive means for all-wheel-driven motor vehicles
An all-wheel driven motor vehicle capable of operating in an understeering or an oversteering condition comprises a front axle, a rear axle, and an interaxle differential comprising a planetary...
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4916973 |
Torque biased differential mechanism
A four wheel drive vehicle has a torque biased inter-axle differential comprising a fluid coupling which is driven by a planetary gear set which multiplies the speed difference between the outputs...
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4914980 |
Limited slip differential assembly
A limited slip differential comprises a bevel gear differential having side gears and planet gears carried by a planet gear support which is capable of limited rotation relative to the carrier....
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4907472 |
Power transmitting system for a four-wheel drive vehicle
A power transmitting system for a four-wheel drive vehicle has a transmission, a central differential, and a viscous coupling. The viscous coupling is provided coaxially with the central...
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4890509 |
Transfer unit for four wheel drive automotive vehicle drive train
A gear arrangement capable of producing a differential effect is combined with a viscous coupling and two other coupling devices in a manner which enables the selective production of three output...
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4887487 |
Hydro-planetary power division system
A system for dividing rotary power to two or more output shafts includes planetary cluster cages that are associated with the output shafts and which are interconnected by a hydraulic circuit. In...
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4885957 |
Disconnectable transmission assemblies
A disconnectable transmission assembly comprising a coupling member within which is rotatably mounted in bearings a viscous coupling having a housing member and a hub which respectively carry...
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4884470 |
Power transmission apparatus
In a power transmission apparatus of viscous coupling type, when two first and second output shafts are kept rotated at two big different speeds for many hours as when the ordinary tire is replaced...
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4848187 |
Drive for transmitting motion between a drive shaft and a pair of driven shafts, in particular, the front and rear drive shafts of a motor vehicle
A drive comprising a power dividing unit located between the drive shaft and the driven shafts and designed to transmit the torque on the drive shaft to each driven shaft in such a manner that the...
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4750382 |
Four-wheel drive transmission device
Four-wheel drive transmission device comprising at the outlet of transmission (15) a drive gear (1) driving an outer ring gear (2) which comprises an internal toothing which is the ring gear (4) of...
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4729259 |
Interaxle differential system for connecting two driven axles of a motor vehicle
An interaxle differential system connecting two driven axles of a motor vehicle comprises a restrainable differential and a planetary gear train, which comprises three torque-transmitting members...
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4718300 |
Power-drive transmission with viscous clutch
A power-drive transmission (1) with viscous clutch (7) between the hollow wheel (6) and the sun wheel (5) of the front-wheel planetary gear (1). The front wheel planetary gear (1) is axially...
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4712448 |
Drive mechanism for motor vehicles having two drive axles
A drive mechanism for motor vehicles having two drive axles is disclosed. The drive mechanism includes a transmission drive followed by a differential gear unit. The differential gear unit includes...
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4672861 |
Drive system for automobiles having two driven axles
In a drive system for automobiles having two driven axles, a differential gearing between the axles serves at the same time as distributor gearing. A fluid friction clutch is associated with the...
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4601359 |
Part time on-demand four-wheel drive vehicle transaxle with viscous clutch
A dual bevel gear differential transaxle assembly for a front transverse engine vehicle with front and rear pairs of road wheels providing a part time on-demand four-wheel drive system. Interaxle...
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4519272 |
Transmission having a constant torque ratio output at a variable speed ratio output
The transmission has a power division transmission which is adapted to provide a variable speed division with a constant torque division. The power division transmission has three branches...
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4493227 |
Self-locking differential gear unit; more specially for motor vehicles
The spider of a differential gear unit is joined up with one half of a hydrodynamic coupling whose other, outer half is joined up by way of step-up gearing with one half axle so that on slipping of...
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4258588 |
Differential transmission with limited torque transmitter
A differential transmission including a rotatable casing, a pair of pinion gears coupled to the casing, a pair of side gears engaged with the pinion gears, a pair of wheel axles engaged with the...
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4096712 |
Control couplings and gearing combined therewith
A control coupling, particularly for use with a differential gearing, the coupling including an enclosure containing a viscous liquid and first and second mutually interleaved sets of annular...
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