Abstract: A transmission system has a housing including a wall and a gear support extending from the wall. The gear support has an outer surface and an inner surface defining a passage. The outer surface includes a seal receiving portion and a seal support axially spaced from the seal receiving portion. A seal is positioned about the gear support at the seal receiving portion. A sleeve is arranged on the outer surface of the gear support between the wall and the seal and a pump drive gear is mounted on the gear support and is supported by the sleeve. The pump drive gear includes an outer toothed surface, an inner surface, and a bushing arranged on the inner surface, the bushing extending about the sleeve.

Abstract: An hybrid electric vehicle (HEV) drives front wheels by a motor-generator via drive shafts by use of electricity generated by an internal combustion engine (ICE). A lower portion of the internal combustion engine is locate on a front side of a lower portion of the motor-generator in the vehicle body with being distanced therefrom. A steering gearbox is placed between the internal combustion engine and the motor-generator and located on a front side of the drive shafts. According to this configuration, driving stability, steering feeling, and noise and vibration can be balanced at a high level.

Abstract: A torsional vibration damper that damps torsional vibration effectively in a low-speed range. In the torsional vibration damper, a spring holder is formed by apertures of an input element and an output element, and an elastic member is held in the spring holder. A first moveable range of a planetary element extending from an initial position in a drive direction is wider than a second movable range of the planetary element extending from the initial position in a counter direction.

Abstract: An epicyclic gear system having an epicyclic gear stage that includes a sun gear; a carrier, wherein the carrier comprises a plurality of planet gear axles; a plurality of planet gears, each planet gear being located on one of the planet gear axles; a ring gear. The stage also includes an output shaft, wherein the output shaft is connected to the carrier via a biasing mechanism positioned between the carrier and the output shaft, the biasing mechanism being configured to urge the carrier and the output shaft away from one another.

Abstract: An epicyclic gear train includes a housing, an input shaft, a first sun gear fixedly connected to the input shaft, an output shaft, a second sun gear fixedly connected to the output shaft, a planetary gear carrier arranged to be movable with respect to the first and second sun gears, and first and second planetary gears arranged to move on the planetary gear carrier. The planetary gears are fixedly connected to one another and disposed in engagement with the first and second sun gears, The epicyclic gear train further includes a first clutch device is disposed between the planetary gear carrier and the first sun gear, and a second clutch device is disposed between the housing and the planetary gear carrier. The first and second clutch devices block a relative movement between the planetary gear carrier and the first sun gear or between the planetary gear carrier and the housing.

Abstract: Modular pumps comprising universal gearboxes and crank units and associated methods.

Abstract: A damper device is disposed between an engine and a transmission. The damper device includes a differential mechanism. The differential mechanism includes a first input element connected to the engine, a second input element connected to the engine, and an outputting element connected to the transmission. The damper device also includes a first spring disposed between the engine and the first input element, an inertia member disposed between the first spring and the first input element, and a second spring disposed between the transmission and the outputting element.

Abstract: A gearing assembly is provided and includes a mechanical transmission, a differential, the mechanical transmission and the differential being configured to rotatably couple a prime mover and a generator such that a first rotational speed input to the mechanical transmission is output to the generator by the differential at a second rotational speed and a hydro-mechanical transmission, including two controllable, variable displacement pumps, which are coupled to the differential and configured to adjust the second rotational speed.

Abstract: A transmission includes an input member, an output member, at least four planetary 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. The torque transmitting devices include clutches and brakes that are actuated in various combinations to establish a plurality of forward gear ratios and a reverse gear ratio.

Abstract: An automatic transmission is provided, which has a drive area, a hydrodynamic converter, and a driven area. In such a transmission, there are power paths via both the hydrodynamic converter, purely mechanical power paths around the hydrodynamic converter and combined power paths. It is provided in accordance with the invention that precisely one planetary gear set is provided in the driven area. A braking means is further provided which is suitable for tightly holding the turbine of the hydrodynamic converter.

Abstract: A torque split type automatic transmission which transmits the torque output from an engine through two paths, adds the torque passing through and increased in each path, and outputs a final torque is provided, wherein the torque of the engine is divided into two portions by a torque split device and each portion of the torque is transmitted respectively to first and second power delivery paths, wherein the first power delivery path is directly connected to a driving wheel, and wherein the second power delivery path is provided with a launching device and a transmission device disposed in series so as to increase the torque, and output of the second power delivery path is added to the torque of the first power delivery path to output the final torque.

Abstract: A compact gas turbine motor and a speed reduction transmission capable of providing the speed and torque required for drilling with center discharge bits. The transmission includes two sun gears of different pitch diameters, keyed to the turbine shaft. Upper planet gears, whose carrier is fixed in place, drive an outer ring gear, which engages lower planet gears having a different pitch diameter. The lower planet gears engage the lower sun gear. Due to the different pitch diameters of the sun gears and planet gears, the gear carrier for the lower planet gears rotates in the same direction as the turbine shaft, but at a much slower rate. Exhaust gas from the turbine can be directed through one or more flow restriction elements to increase gas density in the turbine, further reducing turbine speed. The flow restriction element can comprise a venturi, to provide a vacuum assist to remove cuttings.

Abstract: A gas turbine engine (10) provides a differential gear system (58) coupling the turbine (20) to the bypass fan (14) and the compressor (16). In this manner, the power/speed split between the bypass fan and the compressor can be optimized under all conditions. In the example shown, the turbine drives a sun gear (74), which drives a planet carrier (78) and a ring gear (80) in a differential manner. One of the planet carrier and the ring gear is coupled to the bypass fan, while the other is coupled to the compressor.

Abstract: A power transmitting apparatus that includes an engine, a transmission disposed alongside of the engine in juxtaposed relation; and gears, a chain, a belt, or the like operatively coupling the output shaft of the engine and the input shaft of the transmission. The transmission comprises a countershaft-type transmission having, in addition to the input shaft, a countershaft and an output axis of rotation which extend parallel to the input shaft. The countershaft is disposed more closely to the engine than a plane which passes through the input shaft and the output axis of rotation of the transmission. Preferably, the output shaft of the engine and the input shaft of the transmission are operatively coupled with a resilient belt trained around a drive pulley coupled to the output shaft of the engine and a driven pulley coupled to the input shaft of the transmission.

Abstract: A bearing structure for an output shaft of an automatic transaxle employs a ball bearing, radial needle bearing and a thrust needle bearing in combination. The ball bearing and the radial needle bearing radially support the output shaft. On the other hand, the thrusting load to be exerted on the output shaft when it is driven by an output torque of the engine is received by the thrust needle bearing, and relatively small thrusting torque in reverse direction is received by the ball bearing. The ball bearing is provided on a side cover which is fixed to a transaxle casing. The radial thrust bearing is radially supported by the inner periphery of an output retainer. The thrust needle bearing is oriented at the opposite side to the ball bearing with respect to the output gear. A generally cylindrical retainer body having an axial end mating with a wall section of a transmission casing has a cylindrical projection extending from the axial end adjacent an inner circumferential edge.

Abstract: A transaxle for an automotive vehicle driveline having an internal combustion engine, a hydrokinetic torque converter (10) mounted on the axis of the crankshaft of the engine, multiple ratio gearing (118, 160) mounted on an output shaft axis (86) located in parallel relationship with respect to the engine crankshaft axis, and a torque transfer drive (14,68,70,78,86) comprising a dual torque flow path between the turbine of the torque converter and the torque input elements of the gearing including clutch and brake structure (96,138,144,106,178,170) for effecting ratio changes in the gearing, the torque converter, the torque transfer gearing and the multiple ratio gearing being packaged in a common assembly with maximum space economy whereby the clutch and brake structure is adapted to select one torque flow path or the other through the transfer drive as well as to control the torque flow pattern through the multiple ratio gearing and whereby the N/V design parameter for the transaxle may be chosen to effect

Abstract: A transaxle assembly for use in a vehicle driveline comprising a hydrokinetic torque converter (12, 14, 16) located on an engine axis, planetary gearing (178, 180) located on a space parallel axis including means (242, 248, 250) for transferring the output torque of the planetary gearing to each of two axle shafts situated on an axis common to the axis of the planetary gearing and a multiple ratio torque transfer drive (52, 80, 90, 112, 114) between the turbine of the hydrokinetic torque converter and the torque input element of the planetary gearing, the transfer drive comprising a pair of differential diameter external tooth gears that are independently rotated and clutch means (96, 98) for selectively activating and deactivating each of two torque flow paths between the differential diameter gears whereby the speed-torque characteristics of the engine can be precisely matched with the ratio range available for the planetary gearing and the hydrokinetic torque converter to effect optimum powertrain performa

Abstract: In a power-transmission unit for variable-speed drive of machinery with hydro-dynamic speed-superposition of a differential gear a second torque converter is provided as a braking device. This increases the effectiveness of the unit by feedback of the superposed output onto the drive side. Particularly advantageous is the use of an oppposed-motion converter as brake converter for certain operating conditions or the combination of a with-motion converter and an opposed-motion converter in the unit. Furthermore, this makes an extension of the speed control range possible.

Abstract: An automatic transmission has a main transmission mechanism having two planetary gear units made on a first axle, and a sub transmission mechanism having two planetary gear units made on a second axle; the main transmission mechanism having a single planetary gear unit and dual planetary gear unit, carriers of the gear units being connected to one another and sun gears of the gear units being connected one another, an input member connecting a ring gear of the single planetary gear unit through a first clutch, and connecting a sun gear through a second clutch, a brake restraining the sun gear and a ring gear of the dual planetary gear unit at a required moment; the main transmission mechanism having three forward speeds and one reverse speed. A fourth clutch may be added which connects an input shaft and the ring gear of the dual planetary gear unit, so that four forward speeds and one reverse speed are obtained. The sub transmission mechanism has three forward speeds.