Abstract: The specification discloses a portable dialysis machine having a detachable controller unit and base unit. The controller unit includes a door having an interior face, a housing with a panel, where the housing and panel define a recessed region configured to receive the interior face of the door, and a manifold receiver fixedly attached to the panel. The manifold includes diaphragms adapted to minimize the dead space between the dialysis machine pins and improve responsivity. The base unit has a planar surface for receiving a container of fluid, a scale integrated with the planar surface and a heater in thermal communication with the container. Embodiments of the disclosed portable dialysis system have improved structural and functional features, including improved modularity, ease of use, and safety features.

Abstract: An engine arrangement includes an engine (23), an exhaust line (25) connected downstream of the engine, exhaust after treatment equipment (27) in the exhaust line, a temperature sensor (29a-29e) for sensing a temperature of the exhaust after treatment equipment, and a turbo compound arrangement (37) including a turbo compound turbine (39) in the exhaust line. Exhaust flow through the turbo compound arrangement and the exhaust line is modified in response to one or more temperature sensor signals to increase heating of the exhaust after treatment equipment.

Abstract: The specification discloses a portable dialysis machine having a detachable controller unit and base unit. The controller unit includes a door having an interior face, a housing with a panel, where the housing and panel define a recessed region configured to receive the interior face of the door, and a manifold receiver fixedly attached to the panel. The manifold includes diaphragms adapted to minimize the dead space between the dialysis machine pins and improve responsivity. The base unit has a planar surface for receiving a container of fluid, a scale integrated with the planar surface and a heater in thermal communication with the container. Embodiments of the disclosed portable dialysis system have improved structural and functional features, including improved modularity, ease of use, and safety features.

Abstract: Several configurations of a hybrid drive train are disclosed using a one-way clutch to prevent reverse power flow from the drive train to a free power turbine. The drive trains are parallel configurations including a generator/motor that can provide a dynamic or regenerative braking capability or a power boost if required. The drive train can be based on a manual or automatic transmission. A dry clutch can be used to engage and disengage the engine from the transmission. A generator/motor can be used to neutralize torque for disengaging the gearing in a transmission or to synchronize the rotational speeds of the gearing for engaging the gearing in a transmission, thus eliminating the need for a dry clutch when a manual transmission is used.

Abstract: A power transmitting apparatus, such as an automotive transmission, can be configured to reduce the size of a torque converter as well as improve the flexibility of the torque converter's layout. A power transmitting apparatus configured to transmit power from a driving source of a vehicle to its wheels and can be configured selectively transmit or cutting-off the driving force to the wheels can comprise a torque converter having a torque amplifying function. A clutch mechanism can include a first clutch device to transmit the driving force to the wheels through a power transmitting system of the torque converter and a second clutch to transmit the driving force without the power transmitting system of the torque converter. A selecting device can control the first clutch device or the second clutch device in accordance with conditions of the vehicle including start of a vehicle from a stop.

Abstract: The disclosure is directed to a method for use in a machine having a transmission having an operational mode, and including first and second power source paths, and a combined power output. The first power source path includes a variator. The method of controlling the transmission includes operating the first power source path, providing a signal indicative of the operational mode of the transmission to a controller, and at least partially neutralizing the variator if the signal indicates that the transmission is in neutral for at least a preset period of time.

Abstract: The invention concerns a turbo compound system, including a crankshaft driven by an internal combustion engine; a blowdown turbine arranged in the exhaust line of the internal combustion engine; a hydrodynamic clutch, including a driving torus and a driven torus, which form with each other a working chamber that is fillable or filled with working fluid; where the driven torus of the hydrodynamic clutch is arranged on a shaft on the crankshaft side, which is in drive connection with the crankshaft and is geared up relative to the crankshaft; and where the driving torus of the hydrodynamic clutch is arranged on a shaft on the blowdown turbine side, which is in drive connection with the blowdown turbine, and where a rotary pump is arranged on the shaft on the crankshaft side or on the shaft on the blowdown turbine side, whose impeller is driven by this shaft.

Abstract: A torque split type automatic transmission which transmits torque output from an engine through two paths, adds the torque passing through and increased in each path, and outputs a final torque, may be provided wherein the torque of the engine is dividedly transmitted to first and second power delivery paths, a launching device for converting the torque and a transmission device for achieving multiple-shift are disposed on the first power delivery path in series, and a torque combining device is disposed on the second power delivery path, and wherein the first power delivery path is connected to the torque combining device such that output torque of the first power delivery path is added to output torque of the second output path to output the final torque.

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 and each portion of the torque is transmitted respectively through first and second power delivery paths, and wherein the first power delivery path is connected to a launching device, the second power delivery path is connected to a transmission device, and outputs of the launching device and the transmission device are met at a torque combining device such that each torque increased through each power delivery path is added and the final torque is output through the torque combining device.

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, 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 and wherein the first power delivery path is connected to a launching device, the second power delivery path is connected to a transmission device, and outputs of the launching device and the transmission device meet such that the torques increased at each power delivery path is added to each other and the final torque is output.

Abstract: A transmission device (1) having a transmission housing (2) in which several assemblies can be positioned for creating different gear ratios, and a start-up device, preferably a hydrodynamic torque converter. At least one breakout (3, 13) is provided in the wall area of the transmission housing (2), where the edge areas (4) are designed as stiffening zones and through which the torque is brought from the transmission housing (2) to auxiliary drive trains. In the area (5) of the transmission housing (2), which is designated for a start-up device, at least one electric machine (6) of a hybrid system is provided. A connection of the electric machine (6), which is positioned in the transmission housing (2), to power electronic located external of the transmission housing (2), is brought through the at least one breakout (13) of the transmission housing (2).

Abstract: A hybrid transmission for a vehicle and its method of use are described. The transmission may have an internal combustion engine and an electric device. A torque converter is connected between the internal combustion engine and a set of direction clutches. The direction clutches are also connected to an intermediate gear set. The electric device is also connected to the intermediate gear set for providing rotational energy to the intermediate gear set or absorbing energy from the intermediate gear set. The electric device is connected to at least one super capacitor.

Abstract: A transmission includes a main shaft, a first input shaft, a second input shaft, and a first clutch to drivingly couple the main shaft and the first input shaft. A second clutch drivingly couples the main shaft and the second input shaft. A torque converter is selectively driven by one of the first input shaft and a first speed gear set. The first speed gear set is driven by the other of the first input shaft and the torque converter. A second speed gear set is driven by the second input shaft.

Abstract: There is provided a multi-turn hydraulic actuator used to open/close a passageway in ground and sea industries including general industrial machines, oil refineries and chemical plants and power generating plants, among others, and more particularly, a multi-turn hydraulic actuator comprising: a hydraulic motor and a decelerator, among others, whereby high torque is efficiently obtained by using low electric power, compared to a conventional electric actuator, and whereby an operation part and a drive part are freely attached to/detached from at a user's necessity.

Abstract: A device drives auxiliary machines by using power extracted from a multi-shaft gas turbine engine. The gas turbine engine may include a LP shaft and a HP shaft. The machines may be installed in a gearbox. The device may include a first mechanical transmission between the HP shaft and the gearbox. The device also may include a hydraulic transmission between the LP shaft and the gearbox. Further, the LP shaft connects a low pressure turbine to a low pressure compressor, the HP shaft connects a high pressure turbine to a high pressure compressor, and the low pressure compressor is upstream of the high pressure compressor.

Abstract: A turbo-compound system having a crankshaft driven by an internal combustion engine; having an exhaust gas turbine arranged in the flow of exhaust gas of the internal combustion engine; having a hydrodynamic coupling, having a primary impeller and a secondary impeller, together forming a working chamber which may be filled or is filled with a working medium, which is arranged in a driven connection between the crankshaft and the exhaust gas turbine in such a way that, when the working chamber of the hydrodynamic coupling is filled, for the exhaust gas turbine driven by the exhaust-gas flow, drive power is transmitted from the exhaust gas turbine to the crankshaft.

Abstract: The invention relates to a propulsion power transmission device having a first interface (1) and a second interface (2). According to the invention, a hydrodynamic clutch is mounted in the driving connection between the first interface and the second interface and a first gear train (4) and a second gear train (5) are mounted parallel to each other in the driving connection, in series with the hydrodynamic clutch, the second gear train (5) causing a reversal in the direction of rotation in relation to the first gear train (4) at one of the two interfaces (1, 2). The propulsion power transmission device of the invention is characterized by the following features: the hydrodynamic clutch has two separate working chambers (3.1, 3.2), which can be independently filled with and drained of a working medium in order to transfer torque from one bladed primary wheel (3.3, 3.4) to at least one bladed secondary wheel (3.

Abstract: The present invention generally pertains to hydro-mechanical transmission using fixed displacement motors and pumps in conjunction with two or more mechanical differentials to accomplish continuously variable transfer ratio change and a means to seek the operating point of peak efficiency. In addition a hydraulic transmission is described that uses only one differential. In addition, an all-mechanical by-pass feature is included to allow the operation of road vehicles at high speed for extended periods at high efficiency. A means is described to provide for mechanical stability under all operating conditions. One intended application is a hydraulic transmission system for vehicles using hydraulic regenerative braking. The all mechanical by-pass allows operation in an “overdrive” and “free-wheeling” mode.

Abstract: A transmission for a wheel type working vehicle which makes it possible to reduce a size of a transmission mechanism for transmitting a mechanical driving force and a hydraulic driving force from the transmission to a front and rear wheel driving output shaft that is along a vehicle longitudinal direction. For this purpose, a bevel gear (49) and a cylindrical gear (50) are included at a front and rear wheel driving output shaft (20) for transmitting the mechanical driving force and the hydraulic driving force to front and rear wheels, and the front and rear wheel driving output shaft (20) is connected to an output shaft (21) of a mechanical transmission mechanism (15) via a bevel gear transmission mechanism (22), and is also connected to a hydraulic power transmission mechanism (24) connected to a hydraulic motor (17) via a cylindrical gear transmission mechanism (25).

Abstract: The present invention provides a transmission for vehicle with an HST interposed in a drive power transmission path that includes: a housing; a center section having a plate-like shape with a first surface and a second surface opposite to the first surface with respect to a drive power transmission direction, and the center section being disposed within the housing; an input shaft extending through the center section; an output shaft disposed parallel with the input shaft and away from the same in a plate surface direction of the center section; a hydraulic pump body supported on the first surface of the center section and operatively connected to the input shaft; a hydraulic motor body supported on the second surface of the center section and being adapted to drive the output shaft upon receiving operational fluid discharged from the hydraulic pump body; a bearing plate fixed within the housing, facing either one of the first and second surfaces of the center section for supporting the input shaft; and an au

Abstract: A transmission for a working vehicle comprising a transmission mechanism for controlling drive transmission; a first input shaft for transmitting drive from an engine to the transmission mechanism; a second input shaft, usable as an alternative to the first input shaft, for transmitting drive from the engine to the transmission mechanism, the second input shaft extending in a different direction to the first input shaft; an implement-operating output shaft for outputting drive from the transmission mechanism to drive a working implement; and a pair of right and left propelling output shafts for transmitting drive from the transmission mechanism to drive wheels, the propelling output shafts extending in the same direction as axes of the drive wheels. The first and second input shafts extend transversely of the propelling output shafts. The implement-operating output shaft extends in the same direction as the first input shaft.

Abstract: The invention provides a transmission mechanism for use in a vehicle including a vehicle body having one side toward a first direction along the length thereof and the other side toward a second direction opposite to the first direction, the vehicle comprising a differential gear unit 11, an HST 8 and an engine 7 which are arranged in the vehicle body from the first direction side toward the second direction. A transmission 10 is provided between the differential gear unit 11 and the HST 8, whereby the power of the engine 7 is transmitted through the transmission 10 and input to the HST 8 at the first direction side thereof. The transmission mechanism of simple construction serves to shorten the overall length of the vehicle while preventing the rise of the center of gravity of the vehicle.

Abstract: A transmission assembly having a hydrostatic transmission with a variable displacement hydraulic device which controls a motor speed ratio. The transmission assembly further includes a mechanical transmission coupled to the hydrostatic transmission and having a first range and a second range and an output shaft driven at a travel speed ratio. The torque through the hydrostatic transmission reverses when the mechanical transmission shifts from the first range to the second range. A synchronous travel speed ratio is the motor speed ratio which produces the same travel speed ratio in both the first gear range and the second gear range. An equal displacement travel speed ratio is the travel speed ratio at which a displacement of the variable displacement device in the second gear range is the same as the displacement in the first gear range. A travel speed ratio differential is a difference between the synchronous speed ratio and the equal displacement travel speed ratio.

Abstract: A modulating clutch unit and a torque converter unit are individually made attachable and detachable to provide a power transmission system for a vehicle with enhanced maintainability. For this purpose, in the power transmission system for a vehicle for transmitting power from an engine (1) to a traveling system by way of an input transfer unit (10) for distributing the power to a working machine power output section and a traveling power output section, via a modulating clutch unit (20), a torque converter unit (40), and a transmission (60), the modulating clutch unit (20) and the torque converter unit (40) are respectively placed at the engine (1) side and the transmission (60) side with the input transfer unit (10) therebetween, and are placed coaxially to be attachable and detachable.

Abstract: A power transmission system, particularly a hydrostatic-mechanical power transmission system for industrial and farming vehicles and the like, comprising a first train of constantly meshed gears which are adapted to selectively connect, through a first pair of clutch units, the prime mover (of the vehicle) to a hydrostatic pump and/or to a hydrostatic motor; and a second train of gears which are adapted to selectively connect, through a second pair of clutch units, the hydrostatic motor or the pump to the output shaft, thus providing a hydrostatic continuously variable transmission (CVT) known in the art as I.sup.2.

Abstract: A countershaft transmission is provided for a motor vehicle having a prime mover. The transmission comprises a first input shaft carrying a first input gear, a second input shaft coaxial with the first input shaft carrying a second input gear, and a countershaft carrying a plurality of loose gearwheels, each of the loose gearwheels in meshing engagement with one of the input gears, respectively. A fixed gearwheel is carried by the countershaft in meshing engagement with the gearwheel on the first input shaft. A synchronizing clutch is carried by the countershaft for driving engaging one of the loose gearwheels carried by the countershaft to select a gear ratio. A first clutch is driven by the prime mover. The first clutch is releasably drivably connectable to the first transmission input shaft and the second transmission input shaft. A second clutch is interposed between the first clutch and the second input shaft for drivably connecting the first clutch and the second input shaft.

Abstract: The present invention relates to a method and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutch. According to the control method of the present invention, when the lockup clutch is in the lockup state, a variation of a generated torque is detected. When the range of the torque variation detected exceeds a predetermined value, an engine torque is reduced by controlling the engine, and the automatic transmission is controlled to compensate for a reduction of the driving torque due to a reduction of the engine torque. Thus, the speed change ratio is changed to the low gear side.

Abstract: A new creeper drive system has a hydraulic motor with first and second flow lines connected thereto. A directional valve apparatus is connected in the flow lines and the system has a flow control valve operable independently of the directional valve apparatus. The creeper drive system is particularly useful on a mobile construction machine. The machine hydraulic circuit needs but a single pump for powering the creeper drive motor and an auxiliary attachment motor and creeper direction and speed functions are independently adjustable.

Abstract: A hydrostatic transmission is provided with a housing, an input shaft supported by and projecting from said housing, a joint disposed on a projecting end of said input shaft, a hydraulic pump disposed in the housing driven by the input shaft, a first output shaft supported by and projecting from the housing, a hydraulic motor disposed in the housing, hydraulically connected with the hydraulic pump, an output connected to the hydraulic motor, a gear transmission disposed in the housing for connecting the output of the hydraulic motor and the first output shaft, a second output shaft supported by and projecting from the housing, a joint disposed on the projecting end of the second output shaft, and a clutch disposed in the housing and selectively operable to connect and disconnect the input shaft and the second output shaft.

Abstract: A drive device for vehicles comprises: a drive prime mover, a power splitting hydrostatic mechanical transmission coupled with the prime mover and having a planetary differential transmission with at least four shafts and two groups of planet wheels, two sun wheels, a web and an annulus, two main shafts forming an input and output and connected with different shafts of the planetary differential transmission, a clutch two variable displacement hydrostatic machines which are respectively connected in at least one operational range with a respective shaft of the planetary differential transmission and are adapted to alternately operate as a pump and as a motor, a first hydrostatic machine which, when the second hydrostatic machine is stationary, being able to be switched over from the input main shaft to the sun wheel, not on the drive side, on transition from one to the other operational range by means of said clutch means and during traction operation is switched over from the motor to the pump function.

Abstract: In the case of hydromechanical power splitting transmission for vehicles the aim of the invention is to make possible the use of the same type of hydrostatic machine is hitherto and of an identical or similar four-shaft planetary differential transmission while at the same time expanding the effective range of conversion to cover substantially at least twice the range. This is achieved in that the hydromechanical power splitting transmission is designed for an extremely wide overdrive operation with a speed of rotation ratio (noutput: ninput of the two main shafts) of up to a maximum of 2. This is achieved by the addition of simple gear trains and the additional provision of clutches.

Abstract: A hydraulic power transmission apparatus for reducing the speed of rotation of output from a power source and changing the speed of rotation thereof at a given transmission ratio, includes an oil pump having a drive shaft to which the power from the power source can be applied, the oil pump being drivable by the power from the power source, a pair of oil motors having output shafts, respectively, and associated with a pair of axles, respectively, the oil motors being drivable by hydraulic pressure generated by the oil pump, a pair of speed reducer mechanisms disposed between the outupt shafts of the oil motors and the axles for reducing the speeds of rotation of the output shafts, respectively, and transmitting the rotation of the output shafts to the axles, respectively, an inner case having a closed space defined therein, the oil pump and the oil motors being housing in the closed space, and a transmission case having a transmission chamber defined therein, the inner case and the speed reducer mechanisms be

Abstract: A differential gearing wherein a hydrostatic motor is flanked by two mechanical transmissions. The motor is an axial piston motor, a radial piston motor or a gear motor, and its main driving member rotates the input element of one of the transmissions. The rotary housing of the motor transmits torque to the input element of the other transmission. The motor and the transmissions can be installed in a common case, in discrete cases or directly in the hubs of the respective driven wheels.

Abstract: The variable speed hydraulic unit has the peculiarity of comprising a fixed body and a rotatable body with hydraulic actuation and fixed displacement, which are operatively interconnected. The output shaft of the fixed body is rigidly associated with the input of the rotatable body in turn operatively associated with a terminal output shaft. A flow divider is furthermore provided for dividing the flow of working fluid fed at a constant flow-rate, having its deliveries connected respectively to the fixed body and to the rotatable body, the percentual distribution between the deliveries determining the direction and speed of rotation of the terminal output shaft.

Abstract: Improved steering systems are provided for skid-steering vehicles such as military tanks, track-type tractors and the like. A diesel engine may be used to rotate a drive shaft interconnected by port and starboard planetary gear assemblies, to apply driving power simultaneously to both track-drive mechanisms. Steering is provided by port and starboard hydraulically-actuated motors, each positively interconnected with the ring gear or other suitable component of its respective planetary gear assembly, whereby each track-drive mechanism may be controlled separately and independently of the other.

Abstract: A stepless speed reducer includes the mechanical power transmission lines for high speed and low speed, the two lines being selectively concluded to effect power transmission. When the working speed ratio comes near a predetermined critical speed ratio, the operation is maintained at the critical speed ratio while the pump motor for low speed is kept inoperative and no pressure difference exists between the transmission circuits, thereby transmitting power through the line for high speed.

Abstract: A drive system includes a vehicle propulsion device having a speed change gear box which drives tracks through a pair of planetary gears and a steering drive having a pair of variable hydrostatic drives. The hydrostatic drives engage a neutral shaft which superimposes rotation on the planetary gears to provide steering control for the tracks. The neutral shaft is separable into two segments. A differential reversing gear may be employed to selectively couple the neutral shaft segments. When the vehicle travels at high speed, the neutral shaft segments are coupled for unitary rotation. At low vehicle speeds, the propulsion drive is blocked and the neutral shaft segments are uncoupled so that both propulsion and steering are provided through the hydrostatic drives.

Abstract: A track laying vehicle has a drive motor, a transmission including a gear box, a transmission differential gear, and a pair of tracks; all of which are drivingly interconnected. The vehicle includes direction control means for controlling the relative speeds of half shafts of the differential gear. The direction control means comprises a control differential gear, half shafts which are drivingly connected to the half shafts of the transmission differential; a hydraulic, axial piston, variable displacement pump having inputs/outputs, a hydraulic, axial piston, variable or fixed displacement motor having inputs/outputs. The inputs/outputs of the pump and motor are respectively communicated. The motor is drivingly connected to an input gear of the control differential gear. One each of the half shafts of the transmission and control differentials are interconnected for opposed rotation at a specific speed ratio.

Abstract: A hydromechanical power splitting transmission for use between the prime mover and the axle power train of a vehicle having a planetary differential drive with at least two series of planetary wheels, two sun wheels, a web and annulus, a drive input shaft and a drive output shaft, connected with different shafts of the planetary differential drive. There are furthermore at least first and second hydrostatic machines, which in at least one operational range are connected with one shaft of the planetary differential drive and at least the first of the hydrostatic machines is able to be switched over from its own shaft to another on changing the operational range by clutches, while the second hydrostatic machine is at least substantially stationary. In the operational state of the vehicle in which the ratio of n.sub.output to n.sub.

Abstract: Separate left and right hydrostatic transmissions (17) for controlling rotation of left and right final drive wheels (11) of a working vehicle independently are disposed laterally inwardly of the drive wheels in a vertical posture such that, while an input shaft (18) is directed axially outwardly of the vehicle, an output shaft (19) is directed axially inwardly of the vehicle. To each of the hydrostatic transmissions is attached a L-shaped gear box (20) which extends over axially inward and laterally outer sides of the hydrostatic transmission and supports the axle (21) of final drive wheel. Within the box is housed first and second reduction gear trains which form L-shaped transmission path between the output shaft and axle.The hydrostatic transmission (17) and gear box (20) of each side may be handled as a unit in assembling the transmission system and are compactly disposed in the proximity of each final drive wheel (11).

Abstract: In order to effect a phase shift in a dual generator having a pair of rotor-supporting shafts, where the phase shift accommodates optimum performance characteristics in a device requiring minimal space therewithin, the phase shifting device includes a first gear associated with an end of one rotor-supporting shaft and a second gear associated with an end of the other rotor-supporting shaft. The ends of the rotor-supporting shafts and disposed in spaced adjacent relation and the first rotor-supporting shaft is drivingly interconnected to the second rotor-supporting shaft through the first and second gears which are drivingly interconnected by a planet gear.

Abstract: An infinitely variable steering transmission is constructed to utilize the unidirection, continuous outputs of a pair of traction drive units for accelerating and decelerating a track-laying vehicle through a first forward and reverse propulsion range and a plurality of higher forward propulsion ranges and for developing steering power in all ranges. The transmission includes a pair of interconnected output planetary gears sets and a single input planetary gear set for combining the traction drive unit outputs and the constant speed input from a suitable prime mover for first and third range propulsion and steering power. Second range propulsion and steering power is obtained exclusively from the traction drive units in a manner to also provide steer cancellation, a continuous drive unit stroking pattern, and synchronous range shifting.

Abstract: A hydromechanical transmission that can be used as a simple and efficient continuously variable transmission includes a differential mechanism for forming either a first mehanical transfer line for high speeds or a second mechanical transfer line for low speeds, a hydraulic power transmission mechanism having a hydraulic pump/motor, and a mode selector mechanism for selecting either a low-speed mode or a high-speed mode. In the low-speed mode, the output is connected to the input via the second mechanical transfer line. In the high-speed mode, the output is connected to the input via the first mechanical transfer line. One of the hydraulic pump/motors has a fixed displacement , while the other hydraulic pump/motor has a variable displacement.

Abstract: A torque converter disconnect and bypass clutch assembly (10) for an automatic mechanical transmission system (12) of the type comprising a fluid torque converter (20) drivingly interposed a drive engine (16) and a mechanical change gear transmission (14), preferably of the type utilizing a power synchronizing device (30), is provided. The torque converter disconnect and bypass clutch structure includes an independently engageable and disengageable torque converter disconnect friction clutch (24) and torque converter bypass friction clutch (26). A connecting member (74) is fixed for rotation with the transmission input shaft (72) and includes a first portion (76) associated with the torque converter disconnect clutch and a second portion (78) associated with the torque converter bypass clutch. In the preferred embodiment, the disconnect and by-pass clutches (24 and 26) are concentric and telescopically related to provide an axially compact structure.

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 hydromechanical transmission that can be used as an efficient, continuously variable transmission has a differential mechanism, a hydraulic transmission mechanism, a mode selector mechanism, a locking mechanism, and a clutch mechanism. The hydraulic transmission mechanism has two pump/motors one of which acts as a hydraulic pump when the other serves as a hydraulic motor, and vice-versa. The mode selector establishes either a low-speed more or a high-speed mode. When one of the two pump/motors operates at a low speed in a given range of higher speeds in the high-speed mode, the input/output shaft of the pump/motor is locked by the locking mechanism. When the locking mechanism is in operation, the other pump/motor operating at a higher speed is disconnected from the differential mechanism by the clutch mechanism.

Abstract: A device for a drive for pumps with a constant holding and preset operating pressure, has, in order that it can be driven by a commercially available electric motor which can continue running with a closed spray gun, a differential gear with an input shaft (15) for the connection of the motor and two output shafts (8, 30) for connection to the pump and a series connected hydraulic pump and adjustable throttle valve.

Abstract: A driveline for a track-laying vehicle having a prime mover and a pair of output shafts (L, R) connected to drive left- and right-hand tracks comprises: two similar continuously-variable-ratio transmissions (10, 20) of the toroidal race-rolling traction type, each having an input adapted to receive input drive from the prime mover and an output; a cross shaft (CS); two similar summing epicyclic gear output units (12, 22) each having a first input (70, 80) geared to the output of a respective transmission unit, an output connected to a respective output shaft (73, 83), and a second input (72, 82) connected to the cross shaft; gear drain (30) for connecting the input drive to the cross shaft at a first predetermined ratio, for low regime operation; a middle regime differential gear arrangement (40) having two inputs connectable at second and third predetermined gear ratios respectively to the corresponding first inputs of the output epicyclic gear units, and an output connectable at a fourth predetermined gear

Abstract: A differential transmission mechanism using an output differential for a constant speed drive has desirable characteristics including full utilization of the torque capabilities of the hydraulic trim device associated with the output differential; however, there is a limitation on the utilization of the speed capability of the hydraulic components of the trim device at the low end of the input speed range.The disclosed differential transmission mechanism utilizing an output differential has a hydraulic trim device with a first hydraulic displacement unit having a normally fixed, approximately maximum displacement connected to an element of the output differential and a second hydraulic displacement unit which is of variable displacement connected to a variable speed input shaft. Additional components of the output differential are connected to the input shaft and to an output shaft connectable to a load.

Abstract: A speed ratio detecting valve means of torque converter comprising a hub of a stator vane spline fitted onto a fixed shaft and being freely rotatable through a prescribed play angle, the hub being permitted to rotate relative to the fixed shaft by said play angle at a prescribed speed ratio utilizing a phenomenon that the direction of force of a working fluid in the torque converter exerted on the stator vane is reversed when an input-output rotation speed ratio reaches said prescribed value, and causing a fluid passage opening through a fixed shaft inside to an outer periphery of the fixed shaft to joint with or shut off from its jointing part.