Abstract: The present disclosure provides a multi-ratio scalable transmission system for multiple vehicle configurations. The system includes an input disposed along a first axis configured to receive torque from a variable speed propulsion device and an output disposed along a second axis and coupled to the input. The system further includes a selectably engageable clutch coupled between the input and output and a planetary unit coupled to both the input and the output, where the planetary unit includes at least one planetary gearset and a brake. The system is configurable based on a particular vehicle configuration such that the first axis and second axis can be coaxial or non-coaxial.

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, two external gear sets or sprocket sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. Each of the external gear sets includes first and second members. The torque transmitting devices include clutches and brakes.

Abstract: A transmission system has an input connected to a drive source, and an output connected to a load. The transmission system further has a transmission that includes two input shafts and an output shaft, as well as a clutch module comprising a clutch and a planetary gear set which comprises three rotational members of which a first rotational member is connected to the input, a second rotational member is coupled to the output and a third rotational member is connected to a brake. Between the input shafts and the output shaft are located three speed transforming gears and three gear clutches, and between the two input shafts is located a further clutch.

Abstract: An automatic transmission includes four planetary gear sets, a plurality of friction and synchronizing clutches and two chain drive assemblies. Input torque is provided to four clutches which selectively provide torque to one element of a compound assembly comprising first and second planetary assemblies. The second planetary assembly includes only a sun gear and a planet carrier including elongate, stepped pinion gears which extend into the planet carrier of the adjacent first planetary assembly. The sun and ring gears of the first planetary assembly drive respective chain drive sprockets. A pair of chains transfer torque to respective driven chain sprockets. The chain driven by the first planetary assembly sun gear drives a third planetary assembly sun gear. The chain driven by the first planetary assembly ring gear drives a fourth planetary assembly sun gear. The transmission output is connected to the planet carriers of the third and fourth planetary assemblies.

Abstract: A device (2) for a vehicle drivetrain (1) with a transmission unit (3) for changing various transmission ratios and with a hydraulic device (4) by which drive torque can be provided in the area of the drive output (5) of the vehicle drivetrain (1) and in whose area a drive output torque of the vehicle drivetrain (1) can be at least partially supported. A reversing gear system (6) is connected, upstream of the transmission unit (3), for reversing the rotation direction, and the hydraulic device (4) can be brought into active connection with the transmission unit (3), between the reversing gear system (6) and the transmission unit (3), in the area of the transmission input (15).

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, two external gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. Each of the external gear sets includes first and second gears. The torque transmitting devices include clutches and brakes.

Abstract: A transmission is provided having an input member, an output member, at least one planetary gear set, a plurality of transfer gears connected by a layshaft, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes.

Abstract: A gear train apparatus in a multistage transmission may include input and output shafts, a complex planetary gear device concentrically mounted with regard to the output shaft and having four rotary components including one rotary component coupled to the output shaft, first to third pairs of external gears, first to third clutches, a train of external gears, a fourth clutch and first and second brakes.

Abstract: A transmission includes an input member, an output member, and an intermediate member coaxially aligned with the input member and the output member. The transmission further includes at least one countershaft substantially parallel with the input member, output member and the intermediate member, and at least one gear associated with each of the input member, the output member, intermediate member, at least one countershaft. The transmission also includes a planetary gear set to operatively couple a gear of the at least one gear associated with the intermediate shaft with the output shaft, and a plurality of clutches to selectively define a torque transfer path from the input member to the output member via one or more of the intermediate member, first countershaft, second countershaft, and the at least one associated gears therewith. The plurality of clutches include a direct drive clutch to selectively couple the input member directly to the intermediate member.

Abstract: A transmission includes an input member, an output member, an intermediate shaft, and a simple planetary gear set, all of which are coaxial. A first and a second layshaft are arranged to define a second axis of rotation and a third axis of rotation, respectively. The transmission has five sets of intermeshing gears, some of which are arranged to transfer torque from the input member to the layshafts, and others of which are arranged to transfer torque from the layshafts to the intermediate member or the simple planetary gear set. The transmission has eight torque-transmitting mechanisms, including one torque-transmitting mechanism that is selectively engagable to connect the input member for common rotation with the intermediate member. The other seven torque-transmitting mechanisms are each selectively engagable to connect a different respective gear of the sets of intermeshing gears to a respective one of the layshafts or to a stationary member.

Abstract: A multispeed automatic transmission is provided having four planetary gear sets, a plurality of friction and synchronizer clutches and two chain drive assemblies. The transmission is arranged along two parallel axes of rotation: a first axis defined by the input shaft and a second axis defined by the output shaft. The chain drive assemblies transfer power between sprockets disposed on the two axes. Various combinations of clutches may be engaged to provide nine forward speed ratios and five reverse speed ratios.

Abstract: An automatic transmission includes four planetary gear sets, a plurality of friction and synchronizing clutches and two drive assemblies. Input torque is provided to four clutches which selectively provide torque to various elements of the first and second planetary gear assemblies. Similarly, various elements of the first and second planetary gear assemblies provide power to the two drive assemblies which may either be chain drive or gear assemblies. The outputs of the drive assemblies drive sun gears of the third and fourth planetary gear assemblies. The transmission output is connected to and driven by the planet carriers of the third and fourth planetary assemblies. Sequenced operation of the friction and synchronizing clutches provides eight, nine or ten forward speeds or gear ratios.

Abstract: A clutch device for a power tool includes a case in which a washer, a clutch, a clutch ring, planet gears and a sun gear are installed. The washer is connected with pins to which springs are respectively mounted. When switching and setting the torque by rotating the torque member, the pins do not extend through the clutch. The output torque of the tool is smaller than the input torque of the main shaft, the clutch ring is rotated by the sun gear and the planet gears. The ratchet teeth of the clutch ring are disengaged from the clutch teeth of the clutch. When switching to the drill mode, the pins extend through the clutch and contact with the clutch ring, the motor activates the gear box. Because the clutch ring is fixed by the pins and cannot rotate, the gear box outputs the maximum torque to drill objects.

Abstract: The invention relates to a transmission unit having a continuously variable transmission part (3) and a mechanical transmission part (4) comprising a four-shaft planetary gear (5), the part comprising a first planetary gear set (8) and a second planetary gear set (1) and being connected selectively to the output (A) via a first clutch device (K1) or a second shiftable clutch device (K2). The invention is characterized in that the first planetary gear set (8) and the second planetary gear set (10) of the planetary gear (5) each comprise a first shaft (11, 12) and a second shaft (13, 15), wherein the first shafts (11, 12) are rotationally fixed to each other and connected at least indirectly to the transmission input (E), and the second shaft of the first planetary gear set (8) is connected to the continuously variable transmission part (3) and the second shaft (15) of the second planetary gear set (9) is connected to an input part (16) of the first clutch device (K1).

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, three external gear sets or sprockets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. Each of the external gear sets includes first and second gears. The torque transmitting devices include clutches and a brake.

Abstract: An automatic transmission excelling in transmission efficiency than the prior art is provided. The automatic transmission is equipped with an input shaft 2 and an output shaft 3 and a plurality of planetary gear mechanisms 5, 6. Any one element Sa of a plurality of the planetary gear mechanisms 5, 6 is coupled to the input shaft 2. One element Ca is coupled to the output shaft 3 via the first gear row G1. One element Rb is connected to the output shaft 3 via a second gear row G2 having a gear ratio different from that of the first gear row G1. Five or more engagement mechanisms C1 through C3, B1, B2 for coupling each element Ra and Cb, each element Sb, Cb with the input shaft 2, and each element Sb, Cb with the transmission case 1 releasably.

Abstract: The invention relates to a gear train unit comprising a plurality of planetary gear train stages, which are connected one after the other and which each comprise a ring gear (4, 4a, 4b), a sun gear (2a, 21, 21a) and a plurality of planet gears (3, 3a, 3b) supported on a planet carrier (5, 5a, 6), wherein the sun (2a, 21, 21a) of each following planetary gear train stage is formed by the planet gear carrier (5, 5a) of the preceding planetary gear train stage. The gear train unit comprises a drive element (2), which forms the sun gear (2a) of the first planetary gear train stage, and an output element (17), which is connected in a torsionally rigid manner to the planet gear carrier (6) of the last planetary gear train stage. The gear train unit can be shifted in such a way that either a first or a second gear ratio can be set.

Abstract: The present invention relates to a transfer gear-box having a casing, an input shaft, a rear output shaft, a front output shaft, and two planet gear sets, the rear output shaft being arranged co-axially to the input shaft, the front output shaft being offset in relation to the input shaft, the two planet gear sets being arranged co-axially to the input shaft, the first planet gear set being a simple planet gear set and consisting of a ring gear, a sun wheel, a planet carrier, and several planet wheels, which are rotatably mounted to the planet carrier, the second planet gear set being a simple planet gear set and consisting of a ring gear, a sun wheel, a planet carrier, and several planet wheels, which are rotatably mounted to the planet carrier.

Abstract: A drive switching mechanism includes a transmission gear and a planetary gear configured to transmit a drive from an input gear to an output gear. The drive switching mechanism further includes a swinging member configured to hold the planetary gear such that the planetary gear can swing around the input gear, a retaining unit configured to retain the swinging member in a swing enabled or disabled state, and a releasing unit configured to disengage the planetary gear from the output gear and cause them to be spaced apart. The output gear includes a toothless part that does not engage with a gear section engaging with the transmission gear.

Abstract: Automatic transmission device comprising: a number n of planetary gears arranged coaxially in a row, each planetary gear comprising a sun wheel, a planetary carrier carrying pivoted planetary wheels and an annulus gear, an input column connected to a sun wheel of a first planetary gear of the row of planetary gears, a general gear positioned adjacent to the row of planetary gears next to a last planetary gear, n mediator gears, each mounted on an output column, and connected to the output column via a freewheel assembly such that the mediator gears, are freely rotatable in one direction relative to the output column, each mediator gear being in engagement with one of the planetary wheels, wherein a planetary carrier of the last planetary gear is fixed to the general gear, and a planetary carrier of each but the last planetary gear being connected to a sun wheel of a following planetary gear positioned adjacently towards the last planetary gear, wherein rotation of any of the mediator gears can be stopped sele

Abstract: The traveling system transmission structure for vehicle includes a planetary gear unit, a forward/rearward-travel switch unit and a transmission case. A front end portion of a sun gear shaft is directly or indirectly supported by a front bearing wall that is detachably connected to a front side of the transmission case and a rear end portion of a planetary outputting member is directly or indirectly supported by an intermediate bearing wall, so that the planetary gear unit is accommodated in a front chamber that is sandwiched by the front bearing wall and the intermediate bearing wall.

Abstract: A vehicle drive includes a first gear set and a second gear set both having a sun gear, a ring gear and planetary gears which couple the sun gear to the ring gear. The planetary gears of both sets are rotatably supported by respective planetary gear carriers which are coupled to each other. The vehicle drive also includes an engine, a first clutch which selectively engages the engine to the ring gear of the first gear set, a first motor/generator coupled to the sun gear of the first gear set and a second motor/generator coupled to the sun gear of the second gear set and electrically coupled to the first motor/generator, a second clutch which selectively engages the engine to the second motor/generator, and a third clutch and a third gear set which operate to selectively engage the ring gear of the second gear set to the planetary gear carriers.

Abstract: A transmission arrangement (1) with at least two countershafts for a vehicle, in particular a utility vehicle is proposed, such that an auxiliary drive output (10) can be coupled by means of a torque-transmitting element (11) to a first countershaft (7), and such that a second countershaft (8) can be coupled with a transmission brake device (12) to bring about load equalization between the countershafts (7, 8) when the auxiliary output (10) is coupled to the first countershaft (7). In addition, a method is proposed for load equalization between the countershafts (7, 8) of a transfer transmission when an auxiliary output (10) is engaged, such that in a first shift position of a main group (2) of the transfer transmission, in which the second countershaft (8), not coupled to the auxiliary output (10), is free from load, a load torque is applied to the second countershaft (8) for load equalization.

Abstract: Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives first and second directional control assemblies to provide a vehicle with zero turn radius. A variable torque converter may be used in various embodiments to control torque from a minimum to a maximum by controlling movement of a rotor along a shaft in relation to a stator.

Abstract: A continuously variable transmission device comprising a variator and a secondary power splitting. For power splitting, a planetary gear set has a first shaft coupled to the transmission input, a second shaft of the gear set coupled a first shaft of the variator, and a third shaft of the gear set couples a second shaft of the variator. First and second shift elements are provided to switch between first and second gear ratio ranges. Via the variator, the gear ratio is continuously variable within the gear ratio range and the two gear ratio ranges overlap. To implement the first gear ratio range, the second shaft of the gear set is connected, via the first shift element, to the transmission output, and to implement the second gear ratio range, the third shaft of the planetary gear set is connected, via the second shift element, to the transmission output.

Abstract: An outboard motor includes an engine that generates power and a transmission device arranged to change the speed of rotation of the engine and to transmit the rotation to a propeller. The transmission device includes a planetary gear type transmission mechanism arranged to shift to any of a plurality of speed positions, and the planetary gear type transmission mechanism is controlled to shift such that a sun gear and planetary gears unitarily rotate when a speed position is a normally used speed position. The outboard motor achieves a reduction in load normally caused by engagements between gears in a normally used speed position and also achieves significant improvement in durability of the gears.

Abstract: A multi-speed power transmission device includes an input shaft, first and second output shafts and a planetary gearset. An axially moveable sleeve fixes the first output shaft and the input shaft for rotation when in a first position and the sleeve fixes the sun gear and the input shaft for rotation when in a second position. A hub is axially moveable and free to rotate relative to the first output shaft when in the first position. The hub is fixed for rotation with the first output shaft when in the second position. A cam plate is continuously fixed for rotation with the carrier and urges the hub toward its second position when in a second axial position. The input shaft drives the first output shaft at a reduced speed via the planetary gearset when the sleeve, hub and cam plate are at their second positions.

Abstract: A transmission apparatus for transmitting power from a motor for driving an airport ground support tractor includes a torque converter for transmitting torque from the motor. A planetary gear train is structured such that in a first mode of operation, when an input shaft is rotated in a first rotational direction, a casing is rotated in the first rotational direction. However, in a second mode of operation, rotation of the casing relative to a housing is inhibited so that a support rotates in a second rotational direction. The arrangement is such that a driven end of a main shaft is secured to the support so that the support selectively drives the main shaft in the first rotational direction and the second rotational direction. An electro-hydraulic actuator selectively moves a synchro device between a first and second dispositions thereof for establishing a first and second gear ratios.

Abstract: The invention concerns an automated motor vehicle shift transmission (1) with an input shaft, an output shaft and several selectively engaged gears, the input shaft (W1) being connected to a drive motor (M) via an engine clutch (K) that can be engaged and disengaged. To avoid an interruption of the traction force during a shift process, a controllable friction clutch is provided as a change-under-load clutch (K5) to connect the input shaft (W1) directly to the output shaft (W3, W4) when necessary. The invention also concerns a method for controlling the gearshifts of an automated motor vehicle shift transmission comprising an input shaft, an output shaft and several selectively engaged gears, and in which the input shaft is connected to a drive motor via an engine clutch that can be engaged or disengaged, such that in a shift process between a loaded gear that is engaged and a target gear to be engaged, the engine clutch remains closed during the gear change.

Abstract: A gear actuation mechanism for an automatic transmission, comprising: a motor; first and second gear actuation shafts; means of selecting one power path from each of two sets of power paths in response to rotation of the first and second actuation shafts, respectively; and means of alternately driveably connecting the motor to either the first gear actuation shaft or the second gear actuation shaft.

Abstract: A transmission includes an input member, an output member, and an intermediate member coaxially aligned with the input member and the output member. The transmission further includes at least one countershaft substantially parallel with the input member, output member and the intermediate member, and at least one gear associated with each of the input member, the output member, intermediate member, at least one countershaft. The transmission also includes a planetary gear set to operatively couple a gear of the at least one gear associated with the intermediate shaft with the output shaft, and a plurality of clutches to selectively define a torque transfer path from the input member to the output member via one or more of the intermediate member, first countershaft, second countershaft, and the at least one associated gears therewith. The plurality of clutches include a direct drive clutch to selectively couple the input member directly to the intermediate member.

Abstract: A transmission includes a bevel gear configured to provide power to a shaft of a vehicle and that is rotatably engaged with a collar assembly. The transmission also includes a planetary gear set selectively engageable with the collar assembly. The collar assembly includes a first collar and a second collar. The first collar and the second collar are axially coupled together and independently rotatable relative to one another. The collar assembly is slidable between a first position to engage the planetary gear set and rotate the shaft at a first speed, and a second position to disengage the planetary gear set and rotate the shaft at a second speed. Both the first collar and the second collar disengage the planetary gear set in the second position.

Abstract: An automatic transmission includes four planetary gear sets, a plurality of friction and synchronizing clutches and two chain drive assemblies. Input torque is provided to four clutches which selectively provide torque to one element of a compound assembly comprising first and second planetary assemblies. The second planetary assembly includes only a sun gear and a planet carrier including elongate, stepped pinion gears which extend into the planet carrier of the adjacent first planetary assembly. The sun and ring gears of the first planetary assembly drive respective chain drive sprockets. A pair of chains transfer torque to respective driven chain sprockets. The chain driven by the first planetary assembly sun gear drives a third planetary assembly sun gear. The chain driven by the first planetary assembly ring gear drives a fourth planetary assembly sun gear. The transmission output is connected to the planet carriers of the third and fourth planetary assemblies.

Abstract: The present invention provides a nine forward speed automatic transmission for a motor vehicle which includes four planetary gear sets, a plurality of friction and synchronizer clutches and two chain drive assemblies. The transmission is arranged along two parallel axes of rotation: a first axis defined by the input shaft and a second axis defined by the output shaft. The chain drive assemblies transfer power between sprockets disposed on the two axes. Various combinations of clutches may be engaged to provide nine forward speed ratios and five reverse speed ratios.

Abstract: The hybrid transmission has a plurality of members that can be utilized in powertrains to provide eight forward speed ratios and one reverse speed ratio. The hybrid transmission includes a motor/generator, three planetary gear sets, five torque-transmitting devices, one fixed interconnection, three external gear sets and a final drive gear set. The powertrain includes an engine and torque converter that is continuously connected to one of the planetary gear members and an output member that is continuously connected with one of the external gear sets. The five torque-transmitting devices provide interconnections between various planetary and external gear members, the input shaft, and the transmission housing, and are operated in combinations of three to establish eight forward speed ratios and one reverse speed ratio.

Abstract: The forward/reverse travel changeover mechanism includes a projection formed by causing an output power shaft for outputting the power from a main transmission to project to the outside of a case, a carrier rotatably supported around the projection relative to a sun gear provided rotatably integrally with the projection, a planetary gear, an internal gear held in meshing engagement with the planetary gear, an output sprocket rotatably supported integrally with the internal gear and rotatable around the projection adjacent the main transmission with respect to the sun gear, and a shifter for selectively changing over the position of the carrier and the internal gear between a forward travel position at which the carrier and the internal gear are connected against relative rotation and a reverse travel position for preventing rotation of the carrier around the projection, and is disposed outside the main transmission case.

Abstract: The present invention relates to a power transmission apparatus which includes a planetary gear set with a planetary carrier of which one side extending to form gear teeth, wherein rotating speed input from a driving power source is reduced and then input to one actuating means, rotating speed of a gear-shifting power source is input to another actuating means to achieve a plurality of gear shifts, generating power is obtained from an output shaft to store electricity to a storage battery, the stored electric energy is utilized as controlling energy for gear-shifting power so that a transmission input shaft can be easily controlled.

Abstract: A multi-group transmission of a vehicle is arranged in a drivetrain and includes traction force support during gearshift operations. A clutch mechanism, including a frictional clutch and two shifting clutches is arranged between a drive motor with a driveshaft and a transmission input shaft, such that the driveshaft can be connected to the transmission input shaft by one shifting clutch in a first shift position in combination with the frictional clutch or in a second shift position with bridging of the frictional clutch, such that the driveshaft can be directly connected to a main transmission shaft by the other shifting clutch in a shift position in active combination with the frictional clutch. In a method for operating the transmission, the frictional clutch is controlled and operated in combination with the first shifting clutch as a starting clutch and with the second shifting clutch as an intermediate-gear clutch.

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, four external gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. Each of the external gear sets includes first and second gears. The torque transmitting devices may include clutches and brakes.

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, four external gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. Each of the external gear sets includes first and second gears. The torque transmitting devices may include clutches and brakes.

Abstract: An output-side swing arm is adapted to be swung about a swing axis thereof when the output-side swing arm is urged by a corresponding part of an input-side swing arm, which is driven by a force transmitted from an input shaft. An adjusting mechanism adjusts an amount of swing of the output-side swing arm by changing a location of a point of action of the input-side swing arm relative to the output-side swing arm in a radial direction of the swing axis of the input-side swing arm.

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, four external co-planar gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. Each of the external gear sets includes first and second gears. The torque transmitting devices may include clutches and brakes.

Abstract: A transmission is provided having an input member, an output member, a dual clutch assembly, two countershaft gearing arrangements, one planetary gear set, a plurality of interconnecting members, and a plurality of torque transmitting devices. Each of the countershaft gearing arrangements includes a plurality of co-planar gear sets. The torque transmitting devices include a combination of clutches, brakes, and synchronizers.

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, four external gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. Each of the external gear sets includes first and second gears. The torque transmitting devices may include clutches and brakes.

Abstract: A drive assembly for an operating unit (9) of an agricultural implement or an agricultural machine has a clutch (4) with an input (34). The input (34) is mechanically and drivingly connected to a drive engine (1). A summarizing gear unit (8) has a first input (20), a second input (24) and an output (26). The first input (20) is mechanically and drivingly connected to an output (35) of the clutch (4). The output (26) acts to drive the operating unit (9). A hydraulic pump (10) is mechanically and drivingly connected to the output (35) of the clutch (4). A hydraulic motor (11) is hydraulically connected to the hydraulic pump (10). The motor (11) is mechanically and drivingly connected to the second input (24) of the summarizing gear unit (8).

Abstract: A transmission is provided that utilizes three planetary gear sets and three layshaft gear sets, as well as four rotating-type clutches and one brake that are engagable in different combinations to provide eight forward speed ratios between an input member and an output member of the transmission. By combining features of a layshaft transmission with those of a planetary transmission, the low spin losses and packaging convenience typical of a layshaft transmission are available while still achieving the high torque capacity typical of a planetary transmission.

Abstract: A transmission is provided having an input member, an output member, a split dual clutch assembly, two countershaft gearing arrangements, one planetary gear set, a plurality of interconnecting members, and a plurality of torque transmitting devices. Each of the countershaft gearing arrangements includes a plurality of co-planar gear sets. The torque transmitting devices include a combination of clutches, brakes, and synchronizers.

Abstract: A transmission includes a first gear, and a second gear is fixed to one end of a shaft with the second gear engaging the first gear. A bevel gear is rotatably supported on the shaft and engages a power input gear. A hub is fixed to the bevel gear for concentric rotation about the shaft; the hub having a splined outer section. A planetary gear set including a sun gear and a carrier are arranged concentrically about the splined outer section of the hub. A splined section is fixed to an opposite end of the shaft. A collar assembly includes first and second collars, each having internal teeth and external teeth. The first collar and the second collar are axially coupled together and independently rotatable relative to one another, and the collar assembly slidably engages the splined section and the splined outer section.

Abstract: In a utility vehicle transmission having an input shaft, a main shaft and an output shaft, a countershaft is provided which can be decoupled in direct gear, a high number of gears wherein power is transmitted from the input shaft to the output shaft directly via the main shaft while providing for a high number of gears by two shiftable input constants with different transmission ratios which are selectively engageable with either of the various forward transmission stages and the reverse transmission stage but which also permit the return flow of power from the input shaft to the main shaft via the input constants.

Abstract: A variable speed transmission is disclosed. In one embodiment, a two shaft and two opposing planetary gearset arrangement is utilized. Drive and driven shafts are connected as respective inputs and outputs to opposing planetary gears of the planetary gearsets. Respective sun gears are rotatably coupled to each end of an intermediary shaft which traverses the span between the planetary gearsets. Respective ring gears are meshed to a pair of spur gears coupled to a secondary shaft which also traverses the span. In operation, the coordinated actuation of a pair of clutch-brake assemblies associated with the intermediary and secondary shafts substantially continuously varies the transmission of torque from the drive shaft to the driven shaft.