Abstract: A transmission has an HMT which is in parallel with an HST both driving two planetaries which are used for forward/reverse and for differential steer. A two or three mode HMT is created by having a first HST in parallel with two or three mechanical power paths defined by separate clutches. One clutch has a speed reversing gear to produce reverse output speed. A four-element planetary sums the parallel flow and delivers variable speed and torque to two output shafts. The differential steer is created by two planetaries connected with the outputs of the HMT and a second HST. The planetaries have a speed reversing gear on one power path connection. The second HST controls the differential speed between the output shafts by adding speed to one and subtracting speed from the other.

Abstract: The present invention relates to a transfer case for distribution of a driving force on a first axle (9) and a second axle (8) of a motor vehicle. The transfer case (1) is arranged between the first axle (9) and the second axle (8). The transfer case (1) includes a planetary gear (3) with a central gear (4) (for example, a sun gear), a central gear (5) (for example, an internal gear), and a planetary pinion support (6) with multiple planetary pinions (7), as well as an electrical machine (2). The electrical machine (2) is connected with an element (4, 5, 6) of the planetary gear (3). The distribution of the driving force on the two axles (8, 9) takes place according to the present invention by means of controlling the electrical machine (2), in order to produce a predetermined moment of rotation on of the elements of the planetary gear (3), whereby the moment of rotation of the two other elements of the planetary gear, which is connected respectively with one of the axles, are fixed.

Abstract: A differential gear includes a main gear wheel rotating on an imaginary axis and having a first side and a second side opposite to the first side, a first output device, the first output device having a first sun gear pivoted to the first side of the main gear wheel for free rotation on the imaginary axis and a first output shaft extended from the first sun gear along the imaginary axis, a second output device, the second output device having a second sun gear pivoted to the second side of the main gear wheel for free rotation on the imaginary axis and a second output shaft extended from the second sun gear along the imaginary axis, and a first planet gear set, the first planet gear set having a first planet gear pivoted to the first side of the main gear wheel and meshed with the first sun gear, a second planet gear pivoted to the first side of the main gear wheel and meshed with the first planet gear, and a third planet gear pivoted to the second side of the main gear wheel and meshed with the second sun ge

Abstract: The differential engine comprises a motor, a torque conversion stage, and a loading mechanism. The torque conversion stage includes first and second differential stages which are coupled together with a pair of shafts, with the shafts rotating in opposite directions. The first differential stage comprises an input shaft which is coupled to the output shaft of the motor, and first and second output shafts which are coupled to the respective shafts. The second differential stage comprises an output coupled to the output drive shaft, and first and second input shafts which are coupled to the respective shafts. The second differential stage includes a gear mechanism which applies a rotational torque to the output drive shaft when a difference occurs between the rotational speeds for the shafts. The rotational speeds of the shafts are varied by loading one or both of the shafts.

Abstract: An extruder driving apparatus is provided in which a speed change gear mechanism is disposed in a position allowing the speed change gear mechanism to rotate at a much lower rotational speed, whereby a noise level is reduced and a seizing trouble is more surely avoided. The extruder driving apparatus comprises a main motor; a planetary gear mechanism including a torque input portion driven by the main motor and outputting a driving force after reducing a rotational speed of the main motor; an output distributing gear mechanism for distributing a driving force from an output portion of the planetary gear mechanism to a plurality of rotor drive shafts arranged parallel to each other; coupling units for connecting one ends of the rotor drive shafts to a plurality of rotors disposed on the extruder side; and thrust bearings for supporting the other ends of the rotor drive shafts to bear thrust forces imposed from the rotors.

Abstract: A hybrid transfer case includes a mainshaft, front and rear output shafts, an electric motor/generator connected to the mainshaft, and an input clutch for selectively coupling the transmission to the mainshaft. The transfer case further includes a planetary gearset having a sun gear driven by the mainshaft, a ring gear, and planet gears supported from a carrier. A direct clutch is operable to selectively couple the rear output shaft for rotation with the input shaft. A low brake is operable to selectively brake rotation of the ring gear. A transfer clutch controls the amount of drive torque delivered through a transfer assembly to the front output shaft. A hybrid control system is provided for controlling actuation of the various clutch and brake assemblies and the electric motor/generator to establish various drive modes.

Abstract: A powertrain for hybrid electric vehicle has an internal engine 10, two motors/generators 46, 54, and two planetary gear sets. A first planetary gear set 20 has a first sun gear 22 that establishes a reduced speed ratio when it is brake. A second planetary gear set 30 has a second sun gear 32 that establishes a overdrive ratio.

Abstract: A two-mode, compound-split, electro-mechanical transmission that selectively receives power from an internal combustion engine as well as a source of electrical energy. Three power receiving planetary gear subsets, first and reverse mode selecting planetary gear subsets, a steering planetary gear subset and left and right output planetary gear subsets are employed. A steering mechanism operates a steering motor. Torque transfer devices selectively ground components of the first and second mode selecting planetary gear subsets. The left and right output planetary gear subsets present corresponding out shafts. The left and right output planetary gear subsets are connected to each other by a shaft which assures simultaneous rotation of one component in the left and right output planetary gear subsets. Another component of the left and right output planetary gear subsets are connected to each other by a retro-rational gear shaft assembly.

Abstract: A four-wheel drive transmission is provided which combines a continuously variable transmission unit and a transfer case into a common assembly. The four-wheel drive transmission includes a continuously variable transmission unit, a continuously variable range unit and a torque transfer unit. Variable speed control of a first worm/worm gear transmission drives a component of an epicyclic gearset associated with the continuously variable transmission unit to provide continuous ratio control between an input shaft and an intermediate shaft. Likewise, variable speed control of a second worm/worm gear transmission drives a component of a differential associated with the continuously variable range unit to provide continuous ratio control between the intermediate shaft and a first output shaft. Finally, the torque transfer unit controls the selective/automatic transfer of drive torque from one of the intermediate shaft and the first output shaft to a second output shaft to provide front-wheel drive.

Abstract: The differential engine comprises a motor, a torque conversion stage, and a loading mechanism. The torque conversion stage includes first and second differential stages which are coupled together with a pair of shafts, with the shafts rotating in opposite directions. The first differential stage comprises an input shaft which is coupled to the output shaft of the motor, and first and second output shafts which are coupled to the respective shafts. The second differential stage comprises an output coupled to the output drive shaft, and first and second input shafts which are coupled to the respective shafts. The second differential stage includes a gear mechanism which applies a rotational torque to the output drive shaft when a difference occurs between the rotational speeds for the shafts. The rotational speeds of the shafts are varied by loading one or both of the shafts.

Abstract: A drive assembly is operable to move control surfaces on wings of an aircraft. The drive assembly may include a gear reduction assembly which is driven by a pair of motors. The drive assembly has output members which are connected with the control surfaces on the wings of the aircraft. Torque limiting brake assemblies are operable between an engaged condition in which they are effective to prevent rotation of output members and a disengaged condition in which the brake assemblies are ineffective to prevent rotation of the output members. Actuator assemblies are connected with the torque limiting brake assemblies. The actuator assemblies are operable to effect operation of the torque limiting brake assemblies from a disengaged condition to an engaged condition in response to transmission of predetermined torques through the actuator assemblies to the output members.

Abstract: An electric drive for a motor vehicle having a vehicle structure or vehicle frame is provided including a housing adapted to be fixed relative to the vehicle structure or vehicle frame, a motor frame rotatably mounted within the housing, and a stator and rotor being mounted for relative rotation and being located within the housing, the motor frame and the rotor are arranged to rotate in opposite directions for work output.

Abstract: A differential apparatus for controlling the wheel speed of a vehicle includes a primary driving input, and first and second output shafts. The differential apparatus also includes a first planetary gear system in driving engagement with the first output shaft for rotating the first output shaft, and a second planetary gear system in driving engagement with the second output shaft for rotating the second output shaft. At least one auxiliary input mechanism selectively drives the first and second planetary gear systems for rotation in opposite directions to effect different rotational speeds to the first and second output shafts, thereby controlling the wheel speed of the vehicle.

Abstract: A vehicle power transmission and a vehicle powertrain capable of being continuously controlled over a predetermined range of operation. The powertrain includes two power units, the power transmission unit and a control device for receiving command input and determining performance parameters associated with the operation of the powertrain, an outer transmission and an inner differential gear assembly. The main transmission has two rotatable inputs, each operable connected to one power unit for receiving rotational power and operably connected to a rotatable output so that the rotational speed of the output can vary in proportion to the algebraic mean of the speeds of ratios of the two inputs. The differential gear assembly is arranged internally of the main transmission with a rotatable input operably connected to two differentially rotatable outputs. The output of the main transmission is operably connected to the input of the differential gear assembly.

Abstract: A phase control mechanism controls phase relationship between two shafts. The phase control mechanism may be used to control various mechanical devices such as the pitch of propellers of aircraft and boats, the pitch of power producing windmills, opening and closing lathe and drill chucks and controlling the eccentricity of some forms of continuously variable transmissions when the mechanisms are not only stationary but also in normal operational motion. The phase control mechanism includes first gears 3,4; 56,64 coupled to the output shafts which are to be phase controlled. A transfer gear 5; 16,17; 52,54 is provided for rotation or operation independent of the input and is coupled to the first gears 3,4; 56,64 to allow rotary motion to be transferred between the first gear members and a phase adjuster 10; 80 causes the first gears 3,4; 56,64 to advance or regress relative to one another to change the phase relationship between the outputs.

Abstract: A transmission for a high-output two-shaft extruder, comprising a speed-reduction gear (1) and a distribution gear (2). The distribution gear has one take-off shaft (4) driven directly by the speed-reduction gear and another take-off shaft (5) driven by the first take-off shaft in conjunction with two distributor shafts (11 & 12), one on each side. The speed-reduction gear is a planetary gear, its sun wheel (21) driven by a main motor and its ring (27) by a superimposition motor, and its planetary bearing (25) coupled to the distribution gear's first take-off shaft. The main motor operates at a constant speed and is designed to handle most of the total power demand. The superimposition motor is regulable or discontinuously variable in speed and is designed to handle a fraction of the total power demand.

Abstract: A combination electric motor and transmission unit device has at least three inputs and at least two rotational mechanical outputs, at least one of the inputs being of electrical power, to a corresponding integral combination of an electric motor means with a transmission means. The directions of rotation and the rotational speeds of the three inputs may be controlled to provide the mechanical outputs at any desired rotational speed with peak power output, depending on the controls, thus providing an ideal infinite speed device. The device employs a novel arrangement of a differential unit or a planetary gear unit. The combined motor and transmission device is lightweight, requires a small number of moving parts, and is useful in vehicles powered by electricity, including for regenerative braking. Another embodiment of the drive device is useful for a flywheel for peak power supplementation and also regeneration.

Abstract: A drive mechanism for an electric car which has a plurality of motors arranged in a drive mechanism case which, in turn rotatably supports a shaft at two points. This shaft transmits the rotation generated by the motors to drive shafts for rotation of the wheels to run the car. The motors are composed of stators having armature cores and coils, and rotors. The stators are fixed in the drive mechanism case and the rotors are supported by the shaft. Since this shaft is rotatably supported at two points by the drive mechanism case, accurate centering of the rotor is maintained.

Abstract: A torque distributing differential for distributing torque from an input element to two output elements and including a first planetary carrier connected to one of the two output elements of the differential and a sun gear coupled to the other of the two output elements. A second planetary carrier of a planetary gear type torque distributing mechanism coupled to the other of the two output elements. An external tooth gear of a ring gear of the torque distributing mechanism and an external tooth gear of the first planetary carrier being operatively connected to each other with a predetermined reduction ration through a pair of spur gears, so that the sun gear is rotatably driven by a motor.

Abstract: An electric drive system for track-laying vehicles includes a pair of electric motors for respectively driving the two vehicle tracks in low range forward and reverse, variable speed propulsion and steer. The output of a third electrical motor is additively combined with the outputs of the pair of motors to provide high range forward and reverse, variable speed propulsion and steer.

Abstract: An planetary gearing in which a planetary gear is positioned at three or more positions. A sun gear and a planetary carrier are co-axially and rotatably arranged. A planetary gear is rotatably supported by the planetary carrier to engage the sun gear. A plurality of transmission gears are arranged around the sun gear to be selectively engaged with the planetary gear when the planetary gear revolves around the sun gear. Stopper projections are provided on the planetary carrier, each corresponding to each of the transmission gears. An engagement lever is rotatably arranged to take a first position and a second position. The engagement lever at the first position holds the planetary carrier, by selectively engaging one of the stopper projections, to make the planetary gear engage the corresponding transmission gear. On the contrary, the engagement lever at the second position is disengaged from the stopper projections.

Abstract: The drive comprises a drive motor (1), two differentials (2, 2'), two worm drives (6, 6'), two servomotors (10, 10'), as well as two control units (9, 9'). The drive motor (1) is connected to one input shaft (3, 3') each, the worm gears (8, 8') are each connected to another input shaft (4, 4') of the differentials (2, 2'), and the worms (7, 7') are connected to output shafts (19, 19') of the servomotors (10, 10'). The driving shafts (5, 5') of the differentials (2, 2') are coupled with one another so that they rotate in opposite directions. The control units (9, 9') control the servomotors (10, 10') so that at constant speed of the drive motor (1) the sum of speeds of the output shafts (19, 19') is constant. Due to this design, the driving shaft (5) is able to rotate in both directions of rotation at constant direction of rotation and constant direction of the drive torque acting on the drive motor, and the driving torque is able to act in both directions.

Abstract: The gear consists of a four-shaft epicyclic gear, of which one shaft forms the input shaft which is in connection via an infinitely variable hydrostatic gear with the second shaft and of which the two remaining shafts represent connecting shafts which, in an extreme position of the hydrostatic gear, have the same speeds and behave during adjustment of the hydrostatic gear into the other extreme position in such a way that one becomes constantly slower and the other constantly faster, and which alternately act on the output shaft via gears of a gear group with following group shiftings. What is special is that the group shiftings make possible a multiple utilization of the gears of the gear group and that preparatory shifts for changing the group shifting provide the synchronization of idling gear parts, and that each gear change itself takes place at synchronous speeds, free from load and without tractive force interruption.

Abstract: Apparatus is provided for simultaneously rotating a plurality of parallel shafts connected, for example, to an array of rf switches that feed energy to or from an array of antenna feed horns. Each shaft is connected by a separate crank to a planar drive plate that is controllable moved relative to the switches in an orbiting fashion, to rotate the shafts in unison. The drive plate is controllably moved by a motor drive system that includes an orbiting motor secured to the plate and a base motor secured to a fixed substrate that houses the switches. The output shafts of the two motors are coupled together such that operation of either motor moves the orbiting motor, and thus the drive plate, in an orbiting motion about the base motor and substrate.

Abstract: A mechanical differential is disclosed. The mechanical differential comprises first, second and third ring gears, each having inner and outer surfaces, and first and second planet gears and two carrier rods. The first and second planet gears and first and second carrier rods are disposed within the ring gears. The first and second planet gears are engaged with the inner surface of the first ring gear. The mechanical differential further comprises two sets of planet gears, each of the sets including third and fourth planet gears. One of the sets is rotatably disposed on a third carrier rod and the other of the sets is rotatably disposed on a fourth carrier rod. The two sets of third and fourth planet gears are engaged respectively with the second and third planet gears. The two third output planet gears are further engaged with the inner surface of the second output ring gear and the two fourth planet gears are further engaged with the inner surface of the third ring gear.

Abstract: A fully geared continuously variable transmission controls output ratios of differentiating gear sets by using a control gear set that is controlled as to rotation speed by a variable speed drive. The ratio gear sets can be bevel gear differentiating clusters or planetary gear sets. As disclosed, the transmission may have two sets of ratio control gears driving separate output shafts that are coupled to rotatable worms engaged with a worm gear to control differentiation between the output shafts which are used as drives for two wheel or four wheel drive vehicles at selected engine idle rpm the variable speed drive rotates the control gears at a selected speed and directs rpm, that holds the output shafts at 0 rpm. As engine rpm is increased to selected cruising final drive ratio the variable speed drive rpm is decreased proportionately to zero to change the output drive ratio continuously as a function of a selected parameter.