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WO/1990/012227A1 |
Described is a drive device with applications in particular in mobile excavators, wheeled loaders and similar plant, which comprises a power-shift planetary gearbox (4) driven by a hydraulic motor (3). The gearbox (4) preferably has two ...
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WO/1990/010807A1 |
A continuously variable automotive transmission (10, 30, 110, and 130) uses an orbital drive having an engine input to an orbit shaft (21, 41) orbiting a cluster gear (25, 45) around a control gear (27, 47) and an output gear (26, 46) me...
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WO/1990/007661A1 |
The invention relates to an automatic transmission for a hydraulic excavator and the like, which is equipped with auxiliary two-stage speed-changing gears. A hydraulic circuit (30) on the discharge side of a revolution-sensing hydraulic ...
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WO/1990/006457A1 |
A contro system is described for the supply of pressure medium to an automatic transmission of a vehicle. The transmission comprises a change-speed gearbox (42), a torque converter (4), a primary pump (1) driven by the engine and a secon...
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WO/1990/002893A1 |
In a hydromechanically infinitely variable transmission with power splitting for motor vehicles with at least four gearshift ranges, the transmission can be infinitely varied by means of a hydrostatic transmission (3). A hydrostat-transm...
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WO/1990/002059A1 |
Arrangement and process for operating a continuously variable drive unit in a motor vehicle with an internal combustion engine (2), a hydrostatic mechanical power split transmission (6) and a control device (3) which, near the gear chang...
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WO/1990/002060A1 |
An arrangement and a process are useful for operating a drive unit for motor vehicles, in particular agricultural and building machinery. The arrangement comprises a controllable internal combustion engine (2), a continuously variable hy...
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WO/1990/002058A1 |
An arrangement and process are useful for operating a variable drive unit. The arrangement comprises a selector switch (1) for preselection of a cruising speed and a control device (4) which permits continuous operation of a continuously...
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WO/1990/000691A1 |
A flexible drive device comprising an incorporated hydraulic transmission provides either a classic drive or a relatively high-speed hydraulic drive and enables the thermal motor, which drives only the hydraulic pump, to rotate at consta...
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WO/1989/012188A1 |
A mechanical-hydraulic transmission gear and a method of controlling the same which are used for construction vehicles or machines, and which are designed in such a manner that, when a motor is rotated at a high speed, the transmission o...
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WO/1989/011051A1 |
A system for dividing rotary power to two or more output shafts (68, 168) includes planetary cluster cages (48, 52) that are associated with the output shafts and which are interconnected by a hydraulic circuit (66, 166). In instances wh...
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WO/1989/009899A1 |
Said gearbox with an infinitely variable gear ratio in the hydrostatic section and several ratios in the mechanical section has, downstream of the coupling gears (6, 23), shiftable planetary reduction gears (43, 50) to reduce the hydrost...
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WO/1989/009351A1 |
The gearing disclosed comprises a first gearing element (40) having an axially oscillating first closed cam (41) which moves about the axis of the gearing element, a second gearing element (42) coaxial with the first gearing element (40)...
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WO/1989/009353A1 |
Said powershift gearbox has a coupling gear (1) actuated by a main input shaft (5), a rotary actuator (2) allocated to said coupling gear and a selector gearbox (4) incorporated downstream of said coupling gear. Coupling shafts (10 and 1...
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WO/1989/005935A1 |
A combined engine starting and power generating system includes an engine (110) connected to a dynamoelectric machine (142) useable as a motor or as a generator via a differential (114). The system utilizes variable and fixed displacemen...
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WO/1989/005931A1 |
In a device for suppressing noise and vibration in continuously variable transmissions with power split in motor vehicles, the power is split into two branches, one of which passes through a continuously variable converter (3). Said conv...
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WO/1989/003320A1 |
A hydrostatic-mechanical gearbox for agricultural and building machines has an adjustable reducing gear ratio and comprises a spring-loaded multi-disc brake (19) incorporated in a mechanical gearbox (9). Said brake acts directly on the d...
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WO/1989/003335A1 |
A superimposed steering gear (3) for tracklaying vehicles superimposes the steering power required to steer the vehicle in curves on the vehicle drive system by means of summarizing differentials, and comprises a summarized hydrostatic-m...
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WO/1989/002552A1 |
An infinitely variable, hydro-mechanical gear system for motor vehicles has at least two speed-change ranges and the infinitely variable control of the gear is achieved by a hydrostatic gear (9). A hydrostatic block (9), a four-shaft, su...
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WO/1989/001100A1 |
A vehicle in which a prime mover (E) drives a drive shaft (10) via a torque converter (11) and a multi-ratio transmission (12) and in which a drive line independent of the torque converter and multi-ratio transmission is also provided fr...
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WO/1988/008086A1 |
A hydraulic pressure-regulating device, in particular for powershift gearbox in motor vehicles, comprises a hydraulic pump (1) and a main pressure valve for regulating the pressure in at least one high-pressure consumer (6) connected to ...
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WO/1988/005140A1 |
An integrated drive generator system (80) in which all of the main components of the system are mounted for operation about a single centerline (C). A housing (81) mounts a drive input shaft (97). A differential (86) is coupled to and ar...
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WO/1988/004253A1 |
An infinitely variable driving and steering gear for tracklaying vehicles has a hydrostatic-mechanical branching gear as driving gear and an infinitely-variable hydrostatic-mechanical overlaying steering gear. The components: hydrostatic...
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WO/1988/003097A1 |
A transmission system for motor vehicles having a driving motor (1), a gearbox (2), at least one driving axle (3) and a controller (4) for the driving motor (1) which controls filling via a throttle valve (11) or an injection pump (12) a...
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WO/1987/006316A1 |
A continuous speed-change branched gear, in particular for motor vehicles, comprises a continuously controllable converter (40; 140) with an integrating planetary gear (4; 104; 204; 304; 404; 504) to add the power which is branched at th...
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WO/1987/004222A1 |
Reductions in weight, frontal area and overhang moment in an aircraft engine gear box and electrical generating system are achieved in a construction including a gear box housing (20) provided with an input shaft (16) connectable to a po...
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WO/1987/002436A1 |
Continuously-variable hydromechanical parallel-type gear-box, in particular for motor vehicles with several shift ranges, in which the continuously variable adjustment of the gear-box is effected by a hydrostatic gear train (A, B). The g...
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WO/1987/001781A1 |
A branched infinitely-variable hydromechanical transmission for motor vehicles has a first travelling speed range in order to lengthen the gear changing range and obtain a higher power output, and dispenses with the use of a clutch for s...
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WO/1987/001782A1 |
Branched infinitely-variable hydromechanical transmission for motor vehicles with at least two gear changing ranges, the progressive adjustment of the gear system being effected by a hydrostatic gear unit (9). The gear system consists of...
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WO/1987/000901A1 |
Gear system for a motor vehicle with a drive motor arranged transversely to the direction of travel and an automatic speed-changing gear system (1), which is connected coaxially by flanged means. Between the drive motor (not illustrated)...
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WO/1986/003814A1 |
The differential transmission mechanism has an output differential (10). A first hydraulic displacement unit (18) having a normally fixed, approximately maximum displacement is connected to the output differential. A second hydraulic dis...
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WO/1986/003567A1 |
A timing valve (340) for an automatic transmission controller comprises a spool and a spring disposed at one end in the valve case for urging the spool toward the other side. This spool is urged in one direction by the action of the spri...
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WO/1986/002983A1 |
A power transmission assembly which serves to drive a variable-r.p.m. machine, normally in a lower r.p.m. range and if necessary in a higher r.p.m. range. The assembly comprises essentially the following elements which are arranged coaxi...
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WO/1985/005666A1 |
A planetary wheel gear-change box for motor-driven vehicles in grouped arrangement, with a basic gearbox (2) and a group gearbox (1) arranged in series thereto, whereby the basic gearbox (2) consistis of a gear-change box with solidity-c...
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WO/1985/002663A1 |
An infinitely variable power transmission mechanism for an automotive vehicle comprising driving (72) and driven pulleys drivably connected by a steel belt (142) wherein provision is made for varying the effective pitch diameters of the ...
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WO/1985/001785A1 |
A multiple speed ratio hydrokinetic transmission for a wheeled vehicle comprising a planetary gear set (20) having two input torque flow paths and a hydrokinetic torque converter (18) having an impeller element (38) connected to one flow...
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WO/1984/004144A1 |
Continuously variable combined transmission with a hydrodynamic unit (1) at least in three parts, provided with an adjoined bridge coupling (11) and with a continuously variable mechanical transmission (2), wherein the continuously varia...
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WO/1984/001419A1 |
A drive comprised of a hydrostat (2, 3) and of a downstream gearbox (1) is provided with a device which suppresses water hammers. A bypass valve unit (12) is arranged in parallel to the hydraulic pump (2) and to the hydraulic motor (3); ...
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WO/1982/004296A1 |
The variable speed torque converter comprises a driving element (2) driven by a motor and coupled to an epicyclic train associated to a differential driving a driven element (1). The epicyclic train has a negative ratio and comprises at ...
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WO/1982/000867A1 |
Continuously driven vehicle steering differentials have heretofore been too complex and have undesirably incorporated a second cross shaft for counter-rotating a pair of oppositely located planetary elements. The planetary steering diffe...
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WO1982000270A1 |
A power unit for a vehicle, particularly for a public transport omnibus, comprises a continuously variable mechanism (G) and four clutches (31, 32, 33, 34). The clutch (31) connects a drive motor (M) to a flywheel (S). The clutch (32) co...
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WO/1981/003368A1 |
A power drive line in which a continuously variable, nutating traction drive transmission unit (16) is combined with a single planetary gear set (84, 86 and 88) to provide two forward modes and a reverse mode of drive line operation. A p...
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WO/1981/003370A1 |
A power drive line in which a continuously variable, nutating traction drive transmission unit (16) is combined with a single planetary set (84, 86, 88) to provide two forward modes and a reverse mode of drive line operation. A pair of t...
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WO/1981/003365A1 |
A drive apparatus (10) includes a drive member (11) and a connected driving ring gear (23) rotatable about a first axis (21) for supplying power to a torque converter (13). A compact speed change mechanism (16) interconnects the driving ...
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WO/1981/003052A1 |
A combined propulsion-and-steering transmission for tracklaying or skid-steered vehicles, from power input (1) to left and right output shafts (33, 34). The transmission is of infinitely variable, split output type, suitable for synchron...
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WO/1981/002920A1 |
The planetary gear may have a hydraulic coupling or a hydrodynamic converter (1, 2, 3); the wheels of the planetary in steps (Z5, Z'5) having the same number of teeth, of unit of toothed wheels (Z1, Z2, Z3, Z4, Z6) as well as the hydraul...
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JP7467054B2 |
To stabilize behavior of a continuously variable transmission easily.A work vehicle includes: a vehicle body provided with a travelling device; a hydraulic pump having a swash plate which changes an output by its swash plate angle; a tra...
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JP7466885B2 |
A transmission apparatus for work vehicle (100A, 100B) includes a transmission input shaft (120) operatively connected to a driving source (10), an HST (200), a PTO transmission shaft (310) and a PTO output shaft (300). The transmission ...
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JP7461115B2 |
A power transmission device includes an input shaft, an output shaft, a differential device including a first rotation element connected to the input shaft, a second rotation element connected to the output shaft, and a third rotation el...
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JP7450341B2 |
It is intended to provide a drive unit capable of enhancing a driving force. The present drive unit (100) includes a prime mover (2), a torque converter (3) and a power transmission mechanism (4). The torque converter (3) is a component ...
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