Abstract: An electrical generator drive which comprises a power source able to transmit power at a rotational speed which may fluctuate substantially in service, an electrical generator which requires a rotational input of power at a substantially constant speed, and a controllable drive transmission of high rotational inertia coupling together the power source and the electrical generator. The drive transmission comprises an epicyclic gear having an input member driven by the power source, an output member coupled with the electrical generator, and a reaction member, a monitoring device responsive to fluctuations from a predetermined value in the rotational speed of the output member, and a control device including a hydraulic pump/motor unit coupled with the reaction member and controllable by the monitoring device in order to vary the relative rotation between the reaction member and the other members of the epicyclic gear so as to maintain a substantially constant predetermined speed of the output member.

Abstract: A planetary gear train comprises a first planetary gear set and a second planetary gear set. These two planetary gear sets coact with a change speed mechanism means, in the form of a pair of intermeshed gears, to provide at least four forward speeds including an overdrive.

Abstract: A self-contained remotely actuated power take-off assembly for front mounting to an engine. A sump containing hydraulic fluid is contained within the power take-off housing to supply hydraulic fluid by a gerotor pump connected to the output shaft supplying fluid under pressure to a piston and cylinder hydraulic actuator. A friction disk clutch operatively engages a gear train between the input and output shaft when acted upon by the piston. A remotely operated solenoid valve located between the pump and hydraulic cylinder is used for such actuation.

Abstract: A control system for a motor vehicle provided with a clutch and a continuously variable transmission. The transmission has a line pressure control valve having ports and a spool for controlling the line pressure of oil supplied to a cylinder of a pulley device to change the transmission ratio. The transmitting torque in an engine power transmission system is detected and a clutch torque dependent on the transmitting torque is obtained. The line pressure is set to a minimum value sufficient for holding a belt of the pulley device for transmitting the clutch torque.

Abstract: A countershaft transmission includes first and second directional clutches and first, second and third speed clutches of the hydraulically actuated, rotating disc type to provide three forward speeds and three reverse speeds for a track-type tractor or the like. Included is an input shaft with first and second gears connected to rotate therewith that define midplanes normal to the input shaft. The directional clutches and the speed clutches are located axially between the midplanes in radially aligned relationships and a plurality of other constantly meshing gears are used including at least one pair of gears located axially exteriorly of the midplanes for compactness and to promote speed reduction ratio flexibility. A second embodiment provides six forward speeds by adding a directional clutch and another gear within the same compact dimensions.

Abstract: A change-speed transmission for a motor vehicle which includes as input shafts a central shaft supported in an intermediate plate of the transmission housing and a hollow shaft supported on the central shaft near the intermediate plate. An output shaft for the axle drive is supported in the transmission housing parallelly to the input shafts. The transmission housing is constructed two-partite or three-partite whereby a separating plane extends within the area of the intermediate plate and parallel thereto. A first group of transmission speeds is coordinated to the central shaft and is located on one side of the intermediate plate, while a second group of transmission speeds coordinated to the hollow shaft is located on the other side of the intermediate plate.

Abstract: A planetary gear apparatus has an external gear mounted on an input shaft through an eccentric member, and an internal gear which engages with the external gear and is concentric with respect to an output shaft. A recess is provided in the output shaft, and internal or external splines are provided on either the inner or outer side of the recess so as to be concentric with respect to the output shaft. The external gear has either a carrier or an annular groove provided on the side thereof which is closer to the output shaft. The carrier or the annular groove is provided with internal or external splines so as to be concentric with respect to the external gear. The internal or external splines on the output shaft and the internal or external splines on the external gear are operatively connected together by a drive having external or internal splines provided at both ends thereof. The drive is constituted by a hollow shaft having a through-hole.

Abstract: Coupling mechanism for transmission between a drive shaft and a driven shaft including support frames, first and second lined independent axle shafts rotatably mounted on the support frame, a box, in the frame and planet and satellite pinion assembly including a first planet pinion connected to the first axle and a second planet pinion connected to the second axle. The first and second satellite pinions are mounted in the box, independent of the support frame. Two coil clutch members are mounted on the box, coaxial with the axle shaft. Each of the coil clutch members being placed on either side of the box and including a plurality of coils and being traversed by one of the axle shafts that are independently mounted. Two driving clutch members, formed of ferromagnetic material, are each integrally mounted to one of the first and second axle shafts in a position parallel to and near to one of said coil clutch members, respectively.

Abstract: In a four wheel drive power transmission system for an automotive vehicle, including a planetary gear mechanism wherein the carrier, the ring gear and the sun gear thereof operate as a power input member, a first power output member for driving either of a pair of front wheels or a pair of rear wheels and a second power output member for driving the other of the pair of front wheels and the pair of rear wheels, respectively, the planetary gear mechanism being selectively locked to rotate as a unitary rotational member, a clutch is incorporated in a rotational power transmitting system for rotationally connecting the ring gear with either the pair of front wheels or the pair of rear wheels so as selectively to intercept the rotational power transmitting system between, wherein the first power output member provides hundred percent front or rear wheel drive when operated with the planetary gear mechanism being locked, while the second power output member provides high percentage opposite rear or front wheel dri

Abstract: A hydrostatic transmission assembly is disclosed in which a variable displacement hydraulic pump is coupled to drive a variable displacement hydraulic motor. The output shaft of the motor in turn is coupled to the input of a mechanical transmission having a gear change ratio substantially equal to the hydraulic motor displacement (stroke) ratio. Control of the shifting of the mechanical transmission and the stroking or destroking of the motor is provided. When the output shaft of the transmission reaches a predetermined sensed speed proximate the torque and speed limit of the pump and motor, the mechanical transmission is simultaneously shifted as the motor is fully stroked or destroked to enable pressure surge-free and torque peak-free extension of the torque and speed range of the transmission assembly.

Abstract: A gear type transmission unit which includes a transmission unit housing, a bearing retainer mounted at a front wall portion of the transmission unit housing, and a first bearing held in the bearing retainer for supporting an input shaft, and is characterized by an upper portion of a bearing holding portion of the bearing retainer, formed to project toward the side of a gear speed changing mechanism. This projecting upper portion is formed with an oil groove for lubricating oil introduction, communicated with an oil hole for bearing lubrication formed in the bearing retainer.

Abstract: A control method of an automatic transmission for an automobile with exhaust brake provided, which includes a control signal given from an exhaust brake control arrangement, if a sensor indicates that the degree of throttle opening is zero and if a judging arrangement indicates that the downshift point is not yet passed over, downshift is performed by an automatic speed change, whereby the engine brake in addition to the exhaust brake is made effective to thereby secure a large braking force.

Abstract: A rotary drive mechanism selectively and rotationally drives at least first and second bodies which are to be driven. The rotary drive mechanism comprises a single motor, an arm structure pivotally supported on an output shaft rotated by the motor, a first rotation transmitting body fixed to the output shaft, a second rotation transmitting body rotatably supported on the arm structure and comprising a first part which is constantly linked to the first rotation transmitting body and a second part, and a third rotation transmitting body having a predetermined rotary load and linked to the second part when the arm structure is in a first rotary position. When the motor rotates in a forward direction, the second part disengages from the third rotation transmitting body and the first part engages and rotationally drives the first body when the arm structure rotates from the first rotary position to a second rotary position.

Abstract: A planetary gear type forward and backward drive switching apparatus, comprising a sun gear mounted on an input transmission shaft, a carrier mounting planetary gears meshing the sun gear and rotatable about the transmission shaft, a ring gear meshing the planetary gears and rotatable about the transmission shaft, and a friction brake mechanism for selectively braking rotations of the carrier and the ring gear, including a ring-formed main brake body having braking faces for acting on side faces of the carrier and the ring gear, the main brake body being shiftable axially of the transmission shafts for selectively braking the carrier and the ring gear, a clutch mechanism for selectively transmitting rotational outputs of the carrier and the ring gear to an output transmission shaft, and a control lever for controlling the forward and backward drive switching apparatus.

Abstract: A control system for a motor vehicle provided with a continuously variable transmission which has a transmission ratio control valve having a spool for controlling the transmission ratio. During the deceleration of the vehicle by closing a throttle valve of the engine, the transmission ratio is upshifted when engine speed does not greatly fluctuate, so that engine speed is reduced further.

Abstract: A compound radial and axial bearing for automatic transmissions for motor vehicles having a sleeve portion with bearing surfaces on both sides for radial loads and a collar portion with bearing surfaces on both sides for axial loads, the sleeve portion (22 and 32) being provided with an internal collar (26 and 36) for receiving axial loads and a further external collar (27 and 37) for receiving a further axial load.

Abstract: A power transmission apparatus having an input shaft connected, by planetary gearing, to two coaxially arranged output shafts. The planetary gearing permits differential rotation between the output shafts. A limiting device located between the output shafts to limit the differential rotation thereof. The limiting device includes a clutch member mounted on the first output shaft and alternating first and second clutch plates. The first plates are axially movable relative to and rotatably fixed to the clutch member, and the second plates are axially movable relative to and rotatably fixed to the second output shaft. An interengaging cam mechanism is carried on the clutch member and the first output shaft, and arranged such that upon relative angular movement between the clutch member and the first output shaft, the clutch member is moved axially to frictionally engage the first and second clutch plates.

Abstract: A hydrokinetic, multiple ratio torque converter transmission having planetary gear ratio elements that establish a hydrokinetic torque path in low ratio and reverse gear and a bypass torque path in intermediate gear and third gear including a torque converter and an overrunning coupling wherein the intermediate gear and third gear is characterized by a mechanical torque flow or a viscous shear torque flow path, the third gear being a partial hydrokinetic regenerative torque flow path.

Abstract: A mid-mount lawn tractor comprising an engine, front and rear wheels, and a working implement or lawn mower mounted between the front and rear wheels. A transmission is disposed adjacent the rear wheels and includes an upwardly extending input section. The transmission is housed in a transmission case defining an opening at an upper portion thereof for exposing the input section. A hydraulic stepless change speed apparatus is disposed above the transmission. The change speed apparatus includes a downwardly extending input shaft for receiving power of the engine through an endless belt, and a downwardly extending output shaft connected through the opening of the transmission case to the input section of the transmission.

Abstract: A planet gear carrier assembly has a cage in which is rotatably mounted a plurality of pinion gears. Each gear is mounted on a respective spindle which is disposed in aligned bores formed in the sidewalls of the cage. In one sidewall, the bores have a stepped diameter to limit longitudinal movement of the spindles in one direction. A flat machined on each spindle and a locking ring, secured in a groove in the other sidewall limit longitudinal movement of the spindles in the other direction as well as rotary movement of the spindles. In one embodiment, an oil shield or lube directing ring is positioned by the locking ring and the spindle flat to direct lubrication fluid to lube passages formed in the spindles.