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WO/1994/013978A1 |
A compact structure is provided for a continuously variable transmission (10), which provides a more direct application of load (LF) and control forces at the pivot trunnion (36, 38). Load forces (LF) are produced from within the pivot t...
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WO/1994/001697A1 |
A roller-control unit for a continuously-variable-ratio transmission of the toroidal-race rolling-traction type, in which the roller carriage (10, 14) is connected by a pivotal joint (30) to the piston (15) of a hydraulic piston-and-cyli...
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WO/1993/021031A1 |
A vehicle driveline including a control system subject to operator demand, and a continuously-variable-ratio transmission (CVT) including a variator of torque-controlled type, in which the control system includes a performance "map" of o...
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WO/1993/019308A1 |
A continuously variable transmission used for translating between two rotary motions or between rotary and linear motions, for use in automotive, industrial and robotics applications, operating with the following principles: an upper sec...
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WO/1993/017260A1 |
A novel mechanism for varying rotational speed between two rotary shafts, namely a drive shaft and a driven shaft. This mechanism is destined to replace the gear boxes which are generally used in motor vehicles. Said mechanism consists o...
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WO/1993/005318A1 |
A variable-speed drive (1) having an input shaft (3), at least one output shaft (4), and a system (5) for connecting the input shaft (3) to the output shaft (4) and enabling the velocity ratio of the shafts (3, 4) to be varied continuous...
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WO/1992/022759A1 |
A rotary to stepless motion converter that functions as a vehicle linear transmission (1). The converter consists of an upper rotating disc (11A) and lower rotating disc (11B) that are horizontally displaced and enclosed by an upper disc...
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WO/1992/011475A1 |
A roller control system for a CVT of the toroidal-race, rolling-traction type in which a roller assembly comprises a roller (1) mounted in a carriage, and in which operating mechanism (10) contacts and applies a predetermined control for...
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WO/1992/010697A1 |
A continuously-variable-ratio transmission (CVT) of the toroidal-race rolling-traction type, capable of operating in "low" and "high" regimes with synchronous change between those regimes, and including a variator (3) - that is to say a ...
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WO/1992/008912A1 |
A ratio-varying component for a continuously-variable-ratio transmission of the toroidal-race rolling-traction type, in which each roller (20) spans the toroidal clearance between its respective input (4, 5) and output (11, 12) discs dia...
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WO/1992/003671A1 |
A continuously-variable-ratio transmission with coaxial input (from 6) and output (17), capable of operating in a least two regimes, and comprising in succession a variator (2) of the toroidal-race rolling-traction type, and gearing incl...
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WO/1992/001175A1 |
A ratio-varying component for a transmission of the toroidal-race rolling-traction type, in which each of the rollers (1) transmitting torque between an input disc (51, Fig. 3) and a corresponding output disc (40) is positioned hydraulic...
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WO/1991/014116A1 |
A hydraulic control system for a continuously-variable-ratio-vehicle transmission of the toroidal-race rolling-traction type, in which the mechanism for positioning each roller includes a double-acting ram (11). The two opposed faces of ...
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WO/1991/011637A1 |
A rotatable disc (1, 3) formed with a coaxial part-toroidal race (26, 27, figure 5) for use as the input or output disc of the variator for a transmission - especially of the full toroidal kind - of the toroidal-race rolling-traction typ...
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WO/1991/008405A1 |
A variator for a transmission of the toroidal-race rolling-traction type in which a multiplicity of input discs (1-4) and output discs (11-13) are arranged alternately in coaxial sequence, all disc except the first (1) and last (4) in th...
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WO/1991/006791A1 |
A continuously-variable ratio transmission of the toroidal-race rolling-traction type, especially in and for an automobile vehicle. The ratio transmitted by the rollers (10) is determined by the position of a double-ended piston (15), th...
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WO/1990/011906A2 |
A vehicle comprises as its prime source of power a fly-wheel (6), this is connected to a driving wheel (D) of the vehicle in the intermediary of a continuously variable transmission mechanism (16). The transmission mechanism comprises co...
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WO/1990/011462A1 |
A toroidal race rolling traction transmission unit comprises confronting input (1) and output (2) members defining a toroidal race, a set of rollers (3) each mounted in a carriage and each engaging the input and output members, a plurali...
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WO/1990/005864A1 |
A multi-range continuously variable power transmission system having input shaft (52) and an output shaft (72), a continuously variable transmission unit (CVT) (14) having CVT input (52) and CVT output shaft (54), a four shaft planetary ...
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WO/1990/005860A1 |
A roller control system for a continuously-variable-ratio transmission of the toroidal race, rolling traction type, in which rollers (60) of variable orientation transmit traction between a part-toroidal race (85) formed on an input disc...
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WO/1990/004729A1 |
A toroidal race rolling traction transmission unit wherein a plurality of rocker arms (10) are connected by means of a sliding pivot (5) one to each first end of a respective roller carriage (3) and by means of a spherical ball joint (6)...
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WO/1990/002277A1 |
A hydraulic control valve for a continuously-variable-ratio transmission (CVT), particularly one of the toroidal race rolling traction type. The transmission includes hydraulically-operated clutches (25, 26) whose capacity to transmit to...
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WO/1989/009898A1 |
A continuously variable transmission in which a variable transmission unit provides a variable speed ratio between an input member (2) and an output member (3). The output member drives an output transmission member (11) through a simple...
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WO/1989/000256A1 |
A continuously variable transmission which has an input disc (40) and an output disc (45) defining a toroidal race (41, 46) and rollers (48) between the discs (40, 45), the rollers (48) being adjustable in unison to vary the transmission...
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WO/1988/009886A1 |
A continuously variable differential (10) uses a continuously variable transmission (50) that is rotated by drive torque and controlled to vary the speed ratio between its outputs. These, which previously transmitted power through the tr...
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WO/1988/007149A1 |
A continuously variable transmission having a pair of plate-like omega members (52, 54) rotatable about and spaced on a primary transmission axis (30) to be positioned on opposite sides of a biconical beta body (40, 42), the axis (28) of...
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WO/1986/007121A1 |
A continuously variable traction drive transmission of the class including three working bodies (22, 38-40, 70-72) two of which (22, 70-72) are concentric with a first transmission axis (20), the other (38-40) of which is concentric with...
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WO/1986/005564A1 |
A differential mechanism (20) can be driven by either or both of two inputs (24, 26) to provide an output rotational speed that is variable and can exceed, be equal to, can be less than, and can even be opposite to the input rotational s...
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WO/1986/004397A1 |
A continuously variable traction drive transmission (10) of the class including three working bodies, two of which are concentric with a first transmission axis (20), the other of which is concentric with a second axis (34) intersecting ...
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WO/1986/002134A1 |
A computer controlled variable transmission in which power is transferred from an input shaft (1) through gearing (2, 3) to idler cones (6, 12) mounted in sequence by gearing means thence to an output shaft (16). The transmission ratio i...
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WO/1986/001572A1 |
The automatic friction wheel torque converter enables a bearing-free adjustable force transmission, with different loads and speeds, for example in electric vehicles or machines. Said converter is simple, economical and has a high effici...
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WO/1985/004699A1 |
A compact nutating traction drive transmission (10) having particular utility in a vehicle (232) as a steering differential. The transmission (10) includes an input body (38) rotatable about a central axis (32), first and second cone-lik...
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WO/1985/000861A1 |
A transmission using an endless metal band (58) provides an indefinitely variable output velocity for an essentially constant input velocity. The transmission can be controlled to give both forward and reverse directions, through zero ou...
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WO/1984/001416A1 |
A variable and reversible transmission, in which two co-linear shafts (16) are provided with adjustably-locatable generally semi-spherical drive components or heads (12, 14), with control means (42) for changing and holding selected adju...
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WO/1983/003291A1 |
A gear train (12) having an internal gear mechanism (100) for use with a continuously variable transmission unit (10) of the nutating traction drive type. The gear train (12) includes a body (32) rotatable about a central axis (14), a fi...
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WO/1983/002986A1 |
A steplessly variable ball gear has two co-axial rings of balls (A and B), which are so supported by two inner and two outer rolling paths (19-22) formed on moulding rings (12-15) that each ball in one ring touches two rolling paths and ...
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WO/1983/000202A1 |
A traction surface cooling method and apparatus for traction drive transmissions capable of continuous speed ratio variation in which a traction lubricant is circulated over a defined sector of a traction surface (34, 36) spaced from the...
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WO/1982/002079A1 |
A biconical torque body construction for traction drive transmissions in which a pair of hollow cone members (54, 56), telescopically joined at the base or large diameter ends thereof for relative axial movement, are keyed or otherwise p...
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WO/1982/000693A1 |
A drive system for electrically powered vehicles where a specifically shaped flywheel (22) is driven by a motor (20). A friction wheel (26) engages the flywheel (22) to provide the driven output. The flywheel (22) is preferably of a conc...
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WO1982000271A1 |
A transmission system comprises an engine (10) which drives a propeller shaft (14) through continuously variable gearing (CVG) (11), split path gearing (12), and a disconnector device (13). In neutral (N) or park (P) operation, the disco...
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WO/1981/003366A1 |
A nutating traction drive in which external rolling surfaces on a one-piece bi-conical body (10) are retained against axially spaced internal ring surfaces (51, 52) at diameterically opposite points of contact by a mechanism acting betwe...
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WO/1981/003367A1 |
A hub (2) is rigidly torsionwise attached to a leading shaft (1) but free to move axially and radially. A rotary plate (3) is arranged on said hub (2) through a ball bearing (21) and carries a ring (4) provided with four conical transmis...
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WO/1981/003369A1 |
A power input and output system for continuously variable transmission units (10, 110) of the type in which a nutatable traction body (26, 126) is supported both for rotation on the body axis and for nutational movement in which the body...
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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/1981/003051A1 |
A traction drive torque transmission having a lubricant recirculating system by which a liquid lubricant is passed into and out of heat transfer contact with frictionally engaged rolling surfaces (54, 56) and in which transfer of thermal...
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WO/1981/000901A1 |
A torque transmitting body (10) for continuously variable power transmissions of the type in which oppositely convergent, cone-like rolling surfaces of revolution (48) and (50) about one axis (30) are retained in torque transmitting roll...
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WO/1981/000900A1 |
A counterbalancing system for continuously variable torque transmissions of the type in which one of two working bodies (16, 28), between which torque is transmitted by rolling friction, undergoes a nutational movement to generate an ine...
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WO/1980/002729A1 |
On a drive shaft (1) there is mounted a drive member (2) which is integral in rotation with this shaft, but radially and axially displaceable; a disk (3) is rotatingly mounted on the driving member (2) through a roller bearing (21) and c...
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WO/1980/002730A1 |
A power splitting differential transmission unit (10) by which input power is transmitted in a controlled manner to one or both of two differential output shafts (24, 26) at continuously variable output/input speed ratios. The unit inclu...
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