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WO/1997/040296A1 |
A hydraulic control system (70) for a multi-regime CVT (8) includes regime-change clutches (37, 38) which are controlled independently of the variator (10) so that a smooth change of regime may be effected.
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WO/1997/036362A1 |
A variable speed electromagnetic motor (69), generator or dynamic brake includes a rotor (52) and a stator (56), both mounted for rotation with respect to a reference element. A drive shaft is coupled to one of the rotor and the stator, ...
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WO/1997/034091A1 |
A mechanical type transmission (3; MT) is provided between an input shaft (1) and an output shaft (2), and a hydrostatic liquid pressure type transmission (4; HST) is provided in juxtaposition with the mechanical type transmission. Provi...
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WO/1997/032145A1 |
A hydromechanical transmission receives split power inputs from a vehicle engine, one split input driving a hydrostatic power unit and the other split input driving a mechanical power input. The infinitely variable hydrostatic power outp...
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WO/1997/029308A1 |
A hydraulic drive to, for example, a wheeled excavator comprises two motors (4, 6) connectable to the input side of a gearbox (8) whereby each motor (4, 6) can apply a driving force to a load connected to the output side of the gearbox (...
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WO/1997/024539A1 |
Described is a method of controlling a power distribution hydromechanical branched transmission consisting of an adjustable hydrostatic unit (4), an integrating planetary gear (10) with at least two outputs (26, 27) and, connected to the...
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WO/1997/017222A1 |
A system for powering various rotating vehicle accessories such as an alternator, a transmission fluid pump (18), a power steering pump (16), and an air-conditioning compressor (14) from the torque converter (27) of an automatic transmis...
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WO/1997/003857A1 |
A drive unit consists of an internal combustion engine (1) and a continuously variable branching transmission comprising a steplessly variable hydrostatic motor-pump unit (4) and a summarizing gearbox (10) with connected sector gears (12...
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WO/1997/002444A1 |
The invention pertains to a hydrostatic drive such as a vehicle drive. It comprises a drive motor (1), a hydrostatic gear unit (2) with a hydraulic pump (3) coupled to the drive motor (1), and a hydraulic motor (4) coupled to an output-s...
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WO/1997/001049A1 |
A power distribution transmission is provided with one mechanical and hydrostatic power branch mounted in a transmission housing (46) driven via a common drive shaft (1) and cumulated in a coupling gear (5). The coupling gear (5) with it...
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WO/1996/041977A1 |
A hydro-mechanical transmission (2) that is simple in construction and can make full use of its advantages, in which a hydraulic power transmitting mechanism (10) comprising a hydraulic pump and a pump and a hydraulic motor and a mechani...
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WO/1996/035063A1 |
Continuously variable, high performance transmission system for an engine, comprising an input shaft (E) and an output shaft (S), a planetary transmission (T) and two drive linkages (L1, L2), with a constant speed ratio and with a contin...
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WO/1996/009482A1 |
A multi-range transmission having a first output element connectable to a first clutch in a torque transmitting path of a first range and a second output element connectable by a second clutch in a torque transmitting path of a second ra...
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WO/1996/007304A2 |
The speed changing appts. includes a hydraulic pump for supplying power to a variable capacity hydraulic motor (50). The pump and the motor are connected via a closed-centre switching valve. A sensor (63a) detects the selected position o...
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WO/1996/007840A1 |
The vehicle drive system for mobile hydraulics has a hydrostatic power transmission and a multispeed gearbox. When the gears are shifted, the speed of the hydrostatic variable displacement motor is controlled in such a way that synchrono...
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WO/1996/002400A2 |
The invention relates to a hydrostatic-mechanical power distribution transmission with several gear ranges. The transmission in question is provided with devices for bridging the hydrostatic converter to improve gear change and optimize ...
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WO/1996/001383A1 |
The invention relates to a drive system for a motor vehicle, in particular for a construction machine. A hydrostatic transmission unit comprising a variable displacement pump (25), a variable displacement motor (1) and a feed pump (26) i...
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WO/1995/027160A1 |
A method of power transmission in a mechanical/hydraulic type transmission, in which changeover is smoothly effected between hydraulic transmission and mechanical transmission. Provided are a hydraulic type transmission for transmitting ...
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WO/1995/024574A1 |
Continuously variable transmission apparatus (12, 80) utilizing either a dual viscous clutch (86) or an impeller type hydrodynamic torque converter (40). In one embodiment (fig. 1), the hydrodynamic torque converter (40) is operatively c...
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WO/1995/023931A1 |
A hydraulic coupling (32) includes a control valve (80) that controls pumping from a casing inlet port (58) by a hydraulic pump (48) through a casing outlet port (78) to control operation of a clutch (68) for coupling between two rotary ...
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WO/1995/022704A1 |
A power shift gear, in particular for mobile building and working machines, has at least two hydromotors (2, 3) that are driven by at least one pump (12, 13) and that co-operate each at the side of their input shafts with at least one ge...
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WO/1995/021066A1 |
The invention discloses a combination of a variable-speed engine-driven torque converter (18, 20, 22) which, in turn, powers a hydrostatic drive or any other type of hydraulic pump (24). Gear, piston, orbital, variable-displacement, sing...
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WO/1995/020100A1 |
A differential driving supercharger and a method for controlling the same, wherein supply air to an engine for a vehicle such as construction equipment can be supercharged, the acceleration properties of the engine is improved, the size ...
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WO/1995/018930A1 |
A hydro-mechanical transmission (10) having fluid motor (48/248) that is entirely rotatable to eliminate the need for separate gearing is disclosed. The gearless hydro-mechanical transmission (10) provides a variable speed and torque out...
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WO/1995/016868A1 |
The invention concerns a continously variable hydrostatic power-split transmission with at least two operating ranges between which it is switched by shift elements, with a first, mechanical, part (II) which includes a planetary differen...
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WO/1995/009315A1 |
A mechanical and hydraulic transmission for use in a vehicle having a mechanical transmission (31) and a static hydraulic transmission (2, 20) disposed in parallel with each other between an engine and an output shaft (19), for preventin...
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WO/1995/004890A1 |
A rotary drive transmission comprising a hydrostatic pump and motor (10, 12) is arranged to produce a variable speed ratio between input and output drive members (8, 2). Rotors (18, 20) of the pump and motor are mounted in a housing (36)...
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WO/1995/004233A1 |
A vehicle (10) comprising an internal combustion engine (20), a transmission unit (26) whose ratio can be adjusted continuously by means of a controlling element, and a mechanical gear unit (28) which can be set to different ratios by me...
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WO/1995/001522A2 |
The object of the drive design is to create a driving engine which can rotate at a constant working speed of rotation and whose output speed of rotation may be continuously controlled at will by means of a newly developed flange-mounted ...
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WO/1994/015122A1 |
The invention relates to a power division drive with mechanical and hydrostatic power division. Higher speeds, even in reverse, are increasingly being demanded in vehicles used for agricultural purposes. An initial operating range is pro...
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WO/1994/015116A2 |
A power-shiftable, multiple gear reversing gear box (1) of the layshaft type is disclosed, such as those used in particular in construction machinery. In order to attain a high number of light parts and to keep low the noise level, a sin...
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WO/1994/013980A1 |
The automatic transmission comprises a torque converter (10) and a planetary gear train (12). The gear train (12) includes a first sun gear (26) which is keyed to the output shaft (22) of the torque converter (10). A first planetary gear...
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WO/1994/008156A2 |
An infinitely variable drive transmission with power splitting comprising an input member (13), a summing gear set (A, B), a variable speed transmission (20) having an input element (18) drivable by said input member (13) and an output e...
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WO/1994/002758A1 |
In a gearbox unit (1) for insertion between a drive motor (47) and a user (48), consisting of a hydrostatic drive (2) changeable by means of an adjusting device (15a, 15b), a final, particularly mechanical gearbox (4) with several ratios...
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WO/1993/015338A1 |
Drive from an input member (12) is split. Part is transmitted mechanically through a housing (10) to an output member (14). The remainder powers a hydrostatic unit, e.g. a gear pump (32, 34) which may drive a fluid motor (50, 52) which g...
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WO/1993/015337A1 |
A power transmission comprising a discrete step ratio gear system (36) having at least two discrete step output ratios and which is shiftable therebetween, a continuously variable output gear system (15) arranged to transmit power to, or...
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WO/1993/002298A1 |
An arrangement for hydrostatically regulating the rotation of mechanisms is formed by a planetary gear (1, 3, 4) having compression chambers through which extend the discharge channels (6). These discharge channels (6) open into the coll...
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WO/1992/018793A1 |
The invention relates to a gearshift for transmitting a continuous drive by way of three gear ratios, wherein the power extracted from a motor is automatically controlled through different gear ratios according to a required application....
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WO/1992/009833A1 |
A stepless speed change gear for a vehicle enabling smooth starting of the vehicle in quick response to a stepped-on accelerator. This speed change gear intends to eliminate an undesirable starting action such as delay in response and su...
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WO/1992/009830A1 |
A mechanical-hydraulic type transmission for crawler type vehicles which has a small size in the width direction orthogonal to input/output shaft and enables a combination with an existent crawler steering device to be selected arbitrari...
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WO/1992/009829A1 |
A control device in a hydrostatic-mechanical transmitting machine constructed such that, to be driven through an input shaft coupled to a power source, a mechanical transmitting section and a hydrostatic transmitting section in which an ...
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WO/1992/006316A1 |
A gear device for steplessly variable transmission, comprising an epicyclic gear (10) having a central sun wheel (12), planetary wheels (13), an outer annulus (14) and a planetary wheel carrier (11) for mounting of the planetary wheels, ...
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WO/1991/019118A1 |
A rotary transmission system comprises a first planetary gear set (18, 20-22) driven by a rotary input shaft (14), a second planetary gear set (24-26, 44) driven by the first gear set, and a third planetary gear set (41-44) driven by the...
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WO/1991/013275A1 |
An engine (3) drives the pump (8) of a torque converter (7) of which the turbine (11) is linked to the ring gear (16) of a planetary gear train (13) whose planet pinion carrier (18) is connected to the output of the transmission. The pum...
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WO/1991/009239A1 |
The invention relates to a gearshift for transmitting a continuous drive by way of three gear ratios, wherein the power extracted from a motor is controlled automatically through different gear ratios according to a required application....
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WO/1991/001899A1 |
A hydrostatic drive has at least one hydraulic source with a hydraulic flow which can be varied continuously from zero and at leas two hydromotors connected in parallel for driving a component. A mechanical connection is located between ...
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WO/1991/001460A1 |
The invention relates to a continuously variable driving unit of a motor vehicle with a controllable internal combustion engine and a hydromechanical power split gearbox (1) with a continuously variable reduction ratio. The resistance of...
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WO/1991/001461A1 |
Arrangement and process for operating a continuously variable drive unit of a motor vehicle with a device for controlling the function of the clutches (25, 26) in the mechanical transmission branch (19). Sensors (7, 9, 45) send the rotat...
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WO/1991/000968A2 |
This invention relates to a variable transmission apparatus utilizing either a viscous fluid clutch means or a torque converter clutch means. In both embodiments of the variable transmission apparatus, a power input carrier means is driv...
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WO/1990/012225A1 |
This invention relates to a two-path hydromechanical transmission mounted on the caterpillar vehicle or the like and to a method of controlling the same, in which excellent operability and straight advancement performance can be obtained...
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