Abstract: A steering column assembly for a vehicle includes a housing, a shaft rotatably mounted with respect to the housing and being configured for attachment of a steering wheel at one end, an engagement portion connected to and configured to rotate with the shaft, and end stop means which is mounted to the housing and is located in the path of an intermediate rotor which is mounted to the shaft and which is configured to be independently rotatable relative to the shaft, the intermediate rotor being simultaneously engageable with both the engagement portion and with the end stop upon rotation of the shaft through a predetermined angle.

Abstract: Provided is an elastically actuating device including an actuator configured to generate a rotary force, a gear part connected to the actuator and configured to transfer the rotary force from the actuator to an outside, and an elastic member including one end fastened to a ground and the other end connected to the gear part, and an elastic member including one end fastened to a ground and another end connected to the gear part, disposed outside the actuator to cover the actuator from the one end to the other end, and deformed in response to the gear part rotating relative to the actuator.

Abstract: A shower door hinge assembly includes a mount, an upper member, a lower member, a body, a plurality of gears, and a stop member. The mount is configured to be coupled to a fixed structure. The upper member is coupled to an upper portion of the mount, and the lower member is coupled to a lower portion of the mount. The body is rotatably coupled to the mount and is configured to be coupled to a pivotable shower door, wherein the body includes an inner wall having a plurality of splines defining a ring gear. The plurality of gears are disposed in the body and are configured to permit relative rotational movement between the body and the upper and lower members. The stop member is removably coupled between the inner wall of the body and one or more gears of the plurality of gears, and is configured to be selectively removed from, and repositioned within, the body to set a rotational endpoint for a pivotable shower door.

Abstract: A driving mechanism drives a vehicle window to move up and down. The driving mechanism includes a housing, and a driving assembly and a transmission assembly. The driving assembly is engaged with the transmission assembly. The driving assembly is partially received in the housing. The transmission assembly includes a first transmission member connected to the driving assembly, a second transmission member engaging with the first transmission member, and a planetary gear set. The planetary gear set connects to an external device. The driving assembly drives the first transmission member which in turn drives the second transmission member to rotate. The second transmission member drives the planetary gear set which in turn drives the vehicle window to move.

Abstract: An autothrottle system for an aircraft includes a motor, actuator assembly, and position sensor operatively connected between the motor and a moving portion of the actuator assembly. An electronic controller is configured to control the motor to move the actuator assembly to actuator positions based at least on position information from the position sensor to move the throttle lever to lever positions. The actuator assembly includes a bearing assembly having a plurality of bearings to contact a surface of a shaft for converting rotational movement of the shaft into linear motion of the bearing assembly along the shaft. The actuator assembly further includes a shuttle arm having at one end a mounting surface to attach to the bearing assembly and at the other end a linkage arm operatively coupled to the attachment end of the lever.

Abstract: A hybrid drive device for a motor vehicle includes an internal combustion engine, an electric machine, and two planetary gear trains which are shiftable into different gear stages by shifting elements and which are connectable via input elements and output elements with a driven input shaft and an output shaft and have shiftable transmission elements that can be coupled or braked. The internal combustion engine is in driving relation to a first input shaft and the electric machine is in driving relation to a second coaxial input shaft. The two planetary gear trains are coupled to each other such that, when the shifting elements are activated, shifting of four forward gears can be implemented via the internal combustion engine and shifting of three forward gears or reverse gears can be implemented via the electric machine.

Abstract: A rear wheel steering apparatus for a vehicle includes: a housing connected via first and second connecting members to a suspension mechanism supporting rear wheels of a vehicle; an electric motor accommodated in the housing; a planetary gear mechanism having a sun gear connected to an output shaft of the electric motor, a ring gear non-rotatably supported inside the housing, a planetary gear meshing with the ring gear and the sun gear, and a carrier connected to the planetary gear, and reducing the output of the electric motor; and a linear motion mechanism having a nut member connected to the planetary gear mechanism and forming the carrier, and a rod screwed to the nut member and connected to the second connecting member, and converting the rotational motion of the nut member into the linear motion of the rod.

Abstract: A hybrid vehicle powertrain may include input shafts, clutches, output shafts, a transmission path selector, a planetary gear unit, and a gear stage forming mechanism. The transmission path selector may bring engagement of a first input shaft with second or third input shaft. The planetary gear unit may have three rotary elements, with motor power or engine power being input via a second rotary element, and being output with two transmission gear ratios under the control of a first rotary element in response to engagement of an engaging unit. The gear stage forming mechanism may be formed by engagement of gear pairs having different transmission gear ratios with second and third input shafts and a first output shaft, and function to transmit the power from the second or third input shaft to the first output shaft while changing a speed by selecting a gear pair in accordance with a vehicle running speed using a gear pair selector.

Abstract: An improved device, for actuating a valve, comprises a housing and a gear train accommodated in the housing. The gear train includes a center gearset, a planet-pinion carrier, and an output internal gear. The center gearset includes a first external gear and a second external gear being coaxially fixed to the first external gear. The planet-pinion carrier is mounted around the first external gear of the center gearset, wherein a first bearing is provided between the center gearset and the planet-pinion carrier; at least three pinions are mounted at a bottom or inside of the planet-pinion carrier, the pinions being meshed with the first external gear of the center gearset. The output internal gear is mounted in mesh with the pinions, wherein a second bearing is provided between the output internal gear and the housing. The present invention is durable in structure and has a high transmission efficiency.

Abstract: A drive apparatus for a construction machine includes: a motor having a motor shaft; a speed reducer unit having a speed reducer output shaft and a casing and reducing speed of rotation force of the motor, and transmitting the force to an upper slewing body; and a cooler formed with a coolant path through which liquid or gas for cooling lubricating oil inside the casing passes as a cooling medium, wherein the motor and the speed reducer unit are provided in a row in an apparatus-axis direction such that the motor shaft and the speed reducer output shaft are arranged along the same line, and the cooler is provided in a row with the speed reducer unit in the apparatus-axis direction in a state where at least a part of the cooler is immersed in the lubricating oil, so as to enable heat exchange with the lubricating oil.

Abstract: An automatic transmission includes an input shaft or member, an output shaft or member and three simple and one compound planetary gear assemblies each including a sun gear, a planet gear carrier with a plurality of planet gears and a ring gear. The input shaft or member is coupled to the sun gear of the second planetary gear assembly and the output shaft is coupled to the planet gear carrier of the fourth planetary gear assembly. An electric motor is coupled to and drives the sun gear of the fourth planetary gear assembly. The transmission also includes six torque transmitting devices: four friction brakes and two friction clutches.

Abstract: The present disclosure relates to vehicle gearing systems, especially those used in electric bicycles, but may also be used in other dual propulsion vehicles such as hybrid cars. The vehicle gearing system comprises a first rotational input, a second rotational input and a rotational output. The first rotational input and second rotational input may transmit a rotation to the rotational output, wherein one of the first rotational input and second rotational input is connected to the rotational output through a one way clutch, and wherein the other of the first rotational input and second rotational input is connected to the rotational output through an overrunning clutch, wherein said one way clutch and said overrunning clutch are rotationally coupled.

Abstract: A hybrid drive of a motor vehicle comprising a combustion engine having a drive shaft, at least one electric machine, a manual transmission having input shafts (GE1, GE2) and an output shaft. Shaft (GE1) couples the combustion engine drive shaft and the electric machine can drive shaft (GE2). For efficient driving with the combustion engine and/or electric machine optionally decoupled or coupled, and for a reduction of size, shafts (GE1, GE2) are coaxially located one after the other, the output shaft coaxially surrounds one of the shafts (GE1, GE2) and planetary gearsets are disposed coaxially behind one another, each having an input and output element. The combustion engine can be coupled alternately to shaft (GE2), via a first shift element or to the input element of the first planetary gearset, via a second shift element. The output elements of the planetary gearsets are connected to the output shaft.

Abstract: A vehicle drive device configured with reduced axial dimensions, while still having appropriate lubrication. The vehicle drive device is configured with an input shaft coupled to an engine, a rotary electric machine, and an output shaft coupled to wheels. A power transfer mechanism couples input shaft, the rotary electric machine, and the output shaft. A case houses at least the rotary electric machine and the power transfer mechanism. An oil reserving portion capable of reserving oil supplied by rotation of the power transfer mechanism is provided above the rotor shaft inside the case. A communication oil passage is oriented between the oil reserving portion and an inner circumferential space formed inside the rotor shaft. The rotor shaft is disposed to be inserted into the inside housing space, and has a supply communication hole that communicates between the inner circumferential space and the inside housing space.

Abstract: A device for driving a vehicle includes a housing, an electric motor, a differential gear unit, and a planetary gear unit. The planetary gear unit includes a sun gear connected to the electric motor, a ring gear coupleable via a first coupling to the housing, a plurality of planetary gears disposed between the ring gear and the sun gear and mounted on a planet carrier coupled to the differential gear unit, the planet carrier coupleable to the ring gear by a second coupling, the second coupling being disposed in a plane with the first coupling parallel to the electric motor.

Abstract: A vehicle power transmission device includes: a first planetary gear device distributing power from an engine to a first electric motor and a cylindrical output member having an output gear disposed on a portion in an axial center line direction on an outer circumferential side; and a second planetary gear device having a second sun gear coupled to a second electric motor, a second carrier fixed to a case, and a second ring gear coupled to an inner circumference of the cylindrical output member to reduce and transmit output rotation of the second electric motor to the cylindrical output member, the cylindrical output member being supported via a bearing disposed on an inner circumferential side of the cylindrical output member by the second carrier fixed to the case.

Abstract: A hybrid vehicle driving apparatus includes: a first rotor shaft of a first electric motor, the first electric motor being disposed on a first axis; a power distribution mechanism that includes a planetary gear device and is disposed on the first axis; an output gear shaft that serves as an output member of the power distribution mechanism and is disposed on the first axis; a counter shaft disposed on a second axis; a second rotor shaft of a second electric motor disposed on a third axis; a power transmission shaft disposed on the third axis; a differential gear disposed on a fourth axis; and a casing that includes a plurality of case members. The output gear shaft, the power transmission shaft, the counter shaft, the differential gear, the first rotor shaft, and the second rotor shaft are rotatably supported by a common case member that is one of the plurality of case members.

Abstract: A transmission for transferring torque from a prime mover includes a first input shaft adapted to be driven by the prime mover, a second input shaft, an output shaft and an epicyclic gearset. The gearset includes a ring gear being driven by the first input shaft, pinion gears being driven by the ring gear, a sun gear driven by the second input shaft and driving the pinion gears, and a carrier driving the output shaft. A reaction motor drives the second input shaft. A controller controls the reaction motor to vary the speed of the second input shaft and define a gear ratio between the first input shaft and the output shaft based on the second input shaft speed.

Abstract: A differential gearing for an energy generation plant, in particular for a wind power station, has three drives and outputs, a first drive being connected to a drive shaft of the energy generation plant, one output being connected to a generator (8), and a second drive being connected to an electrical machine as differential drive (6). The transmission ratio of the differential gearing (3) can be fixed at 1 by way of a brake (20).

Abstract: In an engine start control device of a hybrid vehicle including a power dividing mechanism which has a sun roller, a carrier, and a first disc with which a rotating shaft of a first motor/generator, an output shaft of an engine, and an output shaft of a second motor/generator are coupled, respectively and by which differential rotating operations between the sun roller, the carrier, and the first disc are controlled using an alignment chart on which rotation speeds of the sun roller, the carrier, and the first disc are disposed in the sequence of the sun roller, the carrier, the first disc and shown by straight lines.

Abstract: An electric vehicle driving device 10 includes a first motor 11, a second motor 12, a first planetary gear mechanism 20, a second planetary gear mechanism 30, a clutch device 40, and a wheel bearing 50. The first planetary gear mechanism 20 is a planetary gear device of single pinion type. The second planetary gear mechanism 30 is a planetary gear device of double pinion type. The first motor 11 is connected to a first sun gear 21 and a second sun gear 31. The second motor 12 is connected to a first ring gear 24. The clutch device 40 is connected to a first carrier 23. A second carrier 33 is connected to the first ring gear 24. A second ring gear 34 is connected to the wheel bearing 50.

Abstract: A motor unit includes a motor shaft for receiving a motor provided driving force and an auxiliary shaft for receiving an externally provided driving force. A first torque transmission path transfers the externally provided driving force to a drive mechanism and a second torque transmission path transfers the motor provided driving force also to the drive mechanism. A first one way drive is provided in the first torque transmission path between the auxiliary shaft and the drive mechanism such that when the drive mechanism is being driven by the motor provided driving force through the second torque transmission path, the auxiliary shaft is able to freewheel. The motor unit can drive any apparatus where the externally provided driving force is provided by manually operable pedals fixed for rotation with the auxiliary shaft.

Abstract: A vehicle steering apparatus includes an actuator that generates a steering force, and a first speed reduction mechanism connected to the actuator. To the first speed reduction mechanism, a second speed reduction mechanism is connected. To the second speed reduction mechanism, a steering mechanism is connected. A sub-assembly including the actuator and the first speed reduction mechanism is configured.

Abstract: A hybrid transmission is provided that has both a hybrid series operating mode and a compound-split operating mode. The transmission includes an input member operatively connected with the engine, an output member, and a plurality of selectively engageable torque-transmitting mechanisms. A gearing arrangement and first and second motor/generators operatively connected with the gearing arrangement are also provided. The gearing arrangement includes a first, a second, and a third planetary gear set, each having a first, a second, and a third member. A first interconnecting member connects a respective one of the members of each of the planetary gear sets for common rotation with one another. A second interconnecting member connects another one of the members of one of the planetary gear sets for common rotation with another one of the members of another of the planetary gear sets.

Abstract: A vertical spring return valve actuator includes a motor, a first worm gear and a second worm gear driving a sun gear of a planetary gear unit. The sun gear and planetary gears are rotated in a state where a ring gear is fixed by a brake unit during time of a normal operation. Also, a spring shaft, which is coupled to an output shaft of a planetary gear carrier operated cooperatively with the planetary gears , is rotated to permit a valve to be closed. At the time of a blackout, the brake unit is released, so that a spiral spring is unwound to permit the valve to be opened. Further, the valve is opened or closed manually through a valve manual opening and closing unit having a rotation member, a variable worm and a steering wheel.

Abstract: A drive mechanism has a drive source which is connected by a main clutch to a transmission which is connected to wheels of the vehicle. The drive mechanism further includes two hybrid modules of which a first module is connected to the drive source and the second module is connected between the transmission and the wheels to the drive line. The first hybrid module has a flywheel and a flywheel clutch and the second hybrid module has a motor/generator and a further clutch.

Abstract: A transmission for transferring torque from a prime mover includes a first input shaft adapted to be driven by the prime mover, a second input shaft, an output shaft and an epicyclic gearset. The gearset includes a ring gear being driven by the first input shaft, pinion gears being driven by the ring gear, a sun gear driven by the second input shaft and driving the pinion gears, and a carrier driving the output shaft. A reaction motor drives the second input shaft. A controller controls the reaction motor to vary the speed of the second input shaft and define a gear ratio between the first input shaft and the output shaft based on the second input shaft speed.

Abstract: A drive unit for a hybrid electric motor vehicle includes a bevel pinion driveably connected to a power source, a bevel gear meshing with the bevel pinion and aligned with an axis, first and second drive shafts, a differential mechanism including an input secured to the bevel gear for transmitting power between the input and the first and the second drive shafts, an electric motor/generator including a rotor, and a planetary gear set driveably connected to the input and the rotor for transmitting power between the rotor and the input such that a speed of the rotor is greater than a speed of the input.

Abstract: An actuating device employed in a steering system comprises an input-side sun gear, which is provided on an input shaft of a steering shaft and is rotated integrally with the input shaft of the steering shaft, an output-side sun gear, which is provided on an output shaft of the steering shaft and is rotated integrally with the output shaft, an input-side planetary gear, which is engaged with the input-side sun gear, revolves around the input-side sun gear, and is provided on a planetary gear shaft, and an output-side planetary gear, which is engaged with the output-side sun gear, revolves around the output-side sun gear, and is provided on a planetary gear shaft, the output-side planetary gear being spaced apart from the input-side planetary gear.

Abstract: A power plant which is capable of enhancing the driving efficiency and the power-generating efficiency thereof. A rotating machine includes a first rotor having a magnetic pole row that has each two adjacent magnetic poles, a stator having an armature row that is disposed in a manner opposed to the magnetic pole row, for generating a rotating magnetic field between the armature row and the magnetic pole row by a predetermined plurality of armature magnetic poles, and a second rotor having a soft magnetic material element row that is formed by a plurality of soft magnetic material elements arranged in a manner spaced from each other. The ratio between the number of the armature magnetic poles, the number of the magnetic poles, and the number of the soft magnetic material elements is set to 1:m:(1+m)/2 (m?1.0).

Abstract: A two-speed transmission for transmitting a drive torque of a vehicle, having an input shaft drivable by a drive unit, a planetary gear system with sun gear, planet gears, planet carriers and ring gear and an output shaft, the sun gear having a rotationally fixed connection to the input shaft and the planet carrier having a rotationally fixed connection to the output shaft, and having a regulatable clutch system whereby the planet carrier can be fixed either relative to the input shaft or relative to the ring gear, and having an exclusively engageable and disengageable clutch system whereby the ring gear can be fixed relative to a housing that supports the planetary gear system.

Abstract: Disclosed is a power train for a hybrid vehicle that allows for multiple mode driving, which is combined with a way of driving at a fixed gear ratio such as the shift stages of a common transmission, and high-efficiency driving, thereby improving fuel efficiency of the vehicle.

Abstract: A transmission is adapted to have a deceleration structure while generating an output in the same direction as when a motive power is rotated forwardly when the motive power is rotated reversely. The transmission includes a motor, an output cover, fixed shafts, and a transmission. The transmission is selectively connected according to the rotational direction of the driving shaft. The transmission provides a constant speed output in the forward direction since the driving shaft and the output cover are directly connected to each other when the driving shaft is rotated forwardly, but provides a decelerated output in the forward direction since a reduction planetary gear is geared between the driving shaft and the output cover when the driving shaft is rotated reversely.

Abstract: A hybrid electric vehicle powertrain having a mechanical power source and an electro-mechanical power source, including a generator, a motor and a battery. Driving torque developed by the mechanical power source is delivered through one clutch of a geared transmission to a power output shaft. The electric motor of the electro-mechanical power source delivers driving torque through a second clutch of the geared transmission. A mechanical reverse drive torque is used to improve reverse drive performance. A reduction in duration of operation in a negative power split during a driving event is achieved to improve vehicle powertrain efficiency. A series drive is available as the mechanical power source drives the generator to charge the battery, which drives the motor. The generator may act as an engine starter motor.

Abstract: A transmission for transferring torque from a prime mover includes a first input shaft adapted to be driven by the prime mover, a second input shaft, an output shaft and an epicyclic gearset. The gearset includes a ring gear being driven by the first input shaft, pinion gears being driven by the ring gear, a sun gear driven by the second input shaft and driving the pinion gears, and a carrier driving the output shaft. A reaction motor drives the second input shaft. A controller controls the reaction motor to vary the speed of the second input shaft and define a gear ratio between the first input shaft and the output shaft based on the second input shaft speed.

Abstract: The present invention relies on the offsetting of one or more outer rotating electrical machines in the interior of the externally rotating mechanism; and the coaxial installation of running wheels with the rotating housing of the outer rotating electrical machine which include gears and friction wheels to couple with the ring type inner running wheel installed inside the externally rotating mechanism wheel hub in order to constitute a variable speed drive function.

Abstract: A motor transmission apparatus is provided between a transmission output shaft coupled to a drive wheel and a motor shaft coupled to a motor/generator. The motor transmission apparatus includes a first power transmission path that is switched to a power transmission condition by a high clutch having a clutch oil chamber, and a second power transmission path that is switched to a power transmission condition by a low brake having a brake oil chamber. Working oil discharged from an oil pump is guided to an oil passage switching valve via an output control valve. The working oil is distributed to one of the clutch oil chamber and the brake oil chamber by the oil passage switching valve, and therefore interlocking, in which the high clutch and the low brake are engaged simultaneously, can be avoided.

Abstract: In a vehicular power transmitting apparatus provided with an electrically-controlled differential portion in which controlling an operating state of an electric motor controls a differential state of a differential mechanism, a control device for starting up a drive force source in an appropriate mode depending on a vehicle condition can be provided. The control device includes drive-force source start control means for switching start modes of an engine depending on a vehicle condition to achieve an appropriate start mode for the engine depending on the vehicle condition, so that for instance a contracted drive range by a second electric motor can be avoided.

Abstract: A powertrain includes a variable ratio transmission device having an input shaft coupled to an engine and an output shaft coupled to a driven unit, a three-way power split transmission device including three input/output couplings, a first of which is coupled to a flywheel and a second of which is coupled to an electrical machine. The third input/output coupling of the three way power split transmission device is mechanically coupled to the engine and to the input shaft of the variable ratio transmission device.

Abstract: An electrical drive apparatus for valves includes: a main body having an internal first receiving space in which a transmission unit is received; a drive unit disposed on one side of the main body for driving the transmission unit to rotate; a hand wheel fixed with a top section of the transmission unit, a lower section of the hand wheel being formed with several sockets; and a switch unit for controlling whether the hand wheel and the first transmission shaft can be rotated so as to switch the electrical drive apparatus between an electrical drive operation mode and a manual drive operation mode.

Abstract: The transmission ratio between a first motor and an output shaft is varied by changing the speed of a second motor. The first and second motors are coupled to the output shaft with a planetary gear set. The first and second motors may both add power to the drive system.

Abstract: A spring return valve comprising a motor, a first worm member, a second planetary gear member, a second worm member, an elastic member, and a valve attached to said second worm wheel is provided. Since the first and the second planetary gear are installed between the first worm shaft and the second worm shaft and the elastic member is fitted onto the second worm shaft, the load applied on the output shaft can be reduced a lot, the opening and/or closing operation is very easy even if the elastic coefficient is small, thereby the reduction in size is possible.

Abstract: A construction machine comprises an electric motor/generator coupled to an electricity accumulator, an engine, a transmission coupled to drive wheels, an epicyclic gearing for coupling an output shaft of the electric motor/generator, an output shaft of the engine, and an input shaft of the transmission, the engine torque and/or the generator torque being transmitted to drive wheels, a clutch for directly coupling two among the output shaft of the electric motor/generator, the output shaft of the engine, and the input shaft of the transmission, and a controller configured to, under a condition in which the clutch is in an off-state, control engine speed based on the degree to which the accelerator is open and on the amount of electricity in the electricity accumulator, to control shifting of the transmission gear position based on the accelerator opening degree, operational state of the generator, and the electricity amount.

Abstract: An auxiliary module has a gearbox, a motor, a torque detector and a controller. The gearbox has a casing, a sun gear, a planet gear assembly, a driven gear and a driving axle. The planet gear assembly engages the sun gear and has a driving gear, multiple planet gears and an annular gear. The planet gears are mounted rotatably on the driving gear and engage the sun gear. The annular gear is mounted around and engages the planet gears. The driven gear engages the driving gear. The driving axle is mounted co-axially on the driving gear. The motor is connected co-axially to the sun gear. The torque detector is mounted on the casing of the gearbox with fasteners to detect torque applied on the driving axle. The controller is connected electrically to the motor and the torque detector to adjust torque output from the motor.

Abstract: The present invention is through an epicyclic gear set (EG101) and a controllable brake device (BK101) to structure the clutch function for replacing the conventional friction type electromagnetic clutch device, and combined with a single rotary kinetic power source to constitute a power train having controllable epicyclic type clutch device.

Abstract: The present invention provides a controllable epicyclic type clutch device coupled with hybrid power train structured by using the controllable brake device to manipulate an epicyclic gear set (EG101), in which the power train having the clutch device structured by using the controllable brake device to manipulate the epicyclic gear set (EG101) can be widely applied in a dual rotary kinetic power source or a triple rotary kinetic power source, the structural configuration includes a coaxial in-series structure or a multiple axial in-parallel structure for satisfying the requirement of applied space.

Abstract: A drive train for a motor vehicle, which has a first and a second axle. The drive train has a first drive unit for permanently driving the first axle and an electric drive unit, which is arranged in the region of the second axle and has an electric motor. A shift clutch package contains a first shift clutch for setting up a first transmission ratio and a second shift clutch for setting up a second transmission ratio between the electric motor and an output of the electric drive unit. The electric drive unit is arranged parallel to an input shaft of a transverse differential of the second axle.

Abstract: A transmission for use in an electrically-driven bicycle and/or a scooter is disclosed, in which the transmission coupled with a motor is embedded together with the motor in a hub of a rear or front wheel. According to the transmission and a transmission method, the power generated from the motor or a pedal is outputted through a transmission device to a hub shell of the wheel. The output of the motor or other output of the motor which is subject to a reduction unit is used as the input of the transmission device. The ring gear and the hub shell are connected to each other with an output pawl, so that the power cannot be reversely inputted when the hub shell is rotated with a higher speed than the ring gear.

Abstract: The present invention provides a dual power driving system with epicycle gear sets transmitted in series, in which the input shaft, the output shaft and the controllable brake device of each epicycle gear set can be coaxially connected in series, or connected in parallel or not in parallel; the rotating shaft at the output end and the rotating shaft at the input end of each epicycle gear set can be directly connected, or an intermediate transmission device can be installed for connection, and through operating the controllable brake devices to choose the structural configurations of the dual power driving system.

Abstract: A mechanical drive uses two rotational clutches mounted in spaced apart positions on a common axle. Two sun gears are engaged respectively with the rotational clutches. A set of planet gears is engaged, with at least one of the planet gears meshed with each one of the sun gears. An internal tooth ring gear is meshed with at least two of the planet gears, wherein one of the planet gears is directed to each one of the sun gears. The planet gears are configured so that motion of the ring gear is transmitted to the two sun gears in opposing rotational senses and the rotational clutches are oriented for locking when under opposite rotational motions, whereby, reciprocating cyclic motion of the ring gear is transmitted to the common axle as continuous rotation in a singe rotational sense.