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| Number | Title | Issue Date |
| 7892121 | Straddle-type vehicle In a motorcycle having a V-belt type continuously variable transmission, a resin washer made of a nylon resin is interposed between a boss fixed to a moving sheave half of a secondary sheave and a spring bearing member. The boss contacts the spring bearing member th... | 02/22/2011 |
| 7780557 | Efficient high torque continuously variable transmission Continuously variable transmission includes a set of pulleys, each pulley comprising two discs arranged relatively axially moveable on a central pulley shaft for clamping a transmission belt. The belt includes a continuous array of transverse elements, each having l... | 08/24/2010 |
| 7353896 | Wheel provided with driving means A traction assembly includes a wheel comprising a wheel shaft and traction means which, when in operation, exert torque on the wheel shaft, wherein the traction ratio, being the arm of the torque divided by the size of the radius of the wheel, is larger than 0.57. | 04/08/2008 |
| 7338398 | Continuously variable transmission or clutch with ortho-planar compliant mechanism A continuously variable transmission or clutch device (10) includes at least one pulley (18) rotatable on a pivot (28) and having a pair of adjustable sheaves (30, 34) including a movable sheave (30) movable along the pivot. An ort... | 03/04/2008 |
| 7331889 | Apparatuses and methods for controlling a variable speed transmission Apparatuses and methods are disclosed for controlling a variable-speed transmission utilizing a pulley structure including first and second pulley members coupled for free rotation together about a shaft. The second pulley member can be axially movable relative to t... | 02/19/2008 |
| 7311629 | Transmission with a steplessly adjustable transmission ratio, with or without branched power and with or without an electrical machine A branched power transmission having several transmission ratio ranges with a steplessly adjustable transmission ratio. A drive shaft is connected to both shafts of a variable speed unit through a distributor transmission, which shafts in turn are connected with the... | 12/25/2007 |
| 7311624 | Apparatus for controlling speed of a water pump For enhancement of heating performance of a vehicle, operating speed of a water pump of an engine is varied in accordance with engine operation conditions, so a speed of a coolant temperature increase can be accelerated when needed. ... | 12/25/2007 |
| 7300370 | Clutch system for belted constant velocity transmission A clutch for a belted transmission comprises a sheave, a first torque ramp member, a second torque ramp member, a drive ring and an electromagnet. The first torque ramp member is attached to the sheave and has a ramp face. The second torque ramp member is spaced apa... | 11/27/2007 |
| 7281603 | Engine An engine for an offroad vehicle including a crankcase, a transversely extending crankshaft, and a transmission connected to the crankshaft. The transmission includes a drive pulley, a driven pulley, and a drive belt connecting the drive pulley and the driven pulley... | 10/16/2007 |
| 7258636 | Method and apparatus for performing a slippage regulation in a continuously variable transmission A method and apparatus for carrying out a drive belt slippage regulation in a continuously variable transmission. A driving disk set and a driven disk set are connected together for torque transfer by an endless torque-transmitting element in which a power ratio bet... | 08/21/2007 |
| 7243564 | Power transmission system of engine The power transmission system of an engine is mounted on the all-terrain vehicle and has a crankshaft driven by the engine and the crankshaft is arranged in a direction of width of a vehicle body. A sub-shaft is arranged parallel to the crankshaft and the rotation o... | 07/17/2007 |
| 7165514 | Variable speed fan drive A variable fan drive for a vehicle powered by an internal combustion engine is provided. A drive side assembly utilizes a hydraulic actuator to actuate a variable sheave assembly. The variable sheave assembly drives a sheave assembly of a driven side assembly by way... | 01/23/2007 |
| 7063633 | Driving pulley for a continuously variable transmission The driving pulley comprises two centrifugal mechanisms, namely a positive assembly and a negative assembly. Both assemblies comprise a respective set of flyweights subjected to the centrifugal force when the driving pulley rotates. The positive assembly is used as ... | 06/20/2006 |
| 7048658 | Device for converting a rotational movement into an axial movement A device for converting a rotational movement into an axial movement includes driven planetary rollers (10) and a sliding body (5) that can be axially displaced by means of the planetary rollers (10). The planetary rollers (10) are fixed ... | 05/23/2006 |
| 7029408 | Variable speed transmission and method of use A variable speed transmission includes an actuator mechanism that can be remotely activated to cause engagement of a drive unit and to subsequently vary the speed of the drive unit using the same activation mechanism. The variable speed transmission can include a fi... | 04/18/2006 |
| 7004860 | Belt type infinite variable-speed drive A belt type infinite variable-speed drive using a ball-screw mechanism is compact and noise-free. A nut of the ball-screw mechanism is fixed to a casing and a threaded shaft is rotatably coupled to a movable pulley member through a ball bearing so that ball circulat... | 02/28/2006 |
| 6997833 | Double-sided sliding button for use in a continuously variable transmission The double-sided sliding button comprises two spaced-apart sliding button halves configured and disposed with reference to a curved medial axis. Each half has a front side, provided with a contact surface, and a rear side. Both contact surfaces are mutually opposite... | 02/14/2006 |
| 6955620 | Drive system for an infinitely variable drive transmission An improvement relating to an infinitely variable ratio transmission having a pair of oppositely oriented variable diameter torque input and output pulleys is disclosed wherein the conical surfaces of the pulleys include a multiplicity of axially and circumferential... | 10/18/2005 |
| 6926631 | Continuously variable transmission, endless flexible belt for torque transmission and adjustable pulley A continuously variable transmission, provided with two adjustable pulleys, each pulley comprising a pair of mutually displaceable essentially frusto-conical pulley sheaves having a radial dimension provided on a pulley shaft, each sheave having a sheave face, where... | 08/09/2005 |
| 6758775 | Bevel gear unit Provided is an infinitely variable cone pulley transmission for which the contact pressure between the cone pulley pairs and the traction is generated hydraulically on one transmission side and mechanical, with the aid of a spring, on the other transmission side. Th... | 07/06/2004 |
| 6743129 | Clutch with no relative rotation A driven element (100) has a first sheave (13) and a second moveable sheave (9). The sheaves (9 and 13) are rotatably tied together so that there is no relative motion between the two sheaves (9 and 13). ... | 06/01/2004 |
| 6722993 | Power transmission system A power transmission system has a Neidhart structure in which a damper is shearing-deformed while being press-deformed when torque is applied to a pulley. The torque is transmitted from the pulley to a center hub by the reaction force in response to a vector compone... | 04/20/2004 |
| 6682450 | V-belt-type automatic transmission for vehicle A V-belt-type automatic transmission for a vehicle is provided with a drive pulley and a driven pulley, wherein a plurality of centrifugal weights are arranged between a movable pulley piece of the drive pulley and a cam plate. The centrifugal weights are... | 01/27/2004 |
| 6669588 | Continuously variable transmission with integrated torque sensor A continuously variable transmission including two pairs of conical disks of which one disk of each pair is axially movable toward and away from the other disk and having an endless loop member in the form of a belt that passes around each pair of disks a... | 12/30/2003 |
| 6656068 | Pulley having progressively variable sheave angle A pulley system for use in a constant variable transmission includes a pair of pulley sheaves or flanges mechanically linked by a belt so that the outer surfaces of the belt interact with the inner surfaces of the flanges. At least one of the pulley flang... | 12/02/2003 |
| 6589126 | Continuously variable transmission A continuously variable transmission for a motor vehicle. The transmission includes an adjustable width drive pulley and an adjustable width output pulley that are drivingly connected by an endless torque-transmitting member. The drive pulley includes a s... | 07/08/2003 |
| 6588560 | Pulley unit A pulley unit improved in the axial positioning of the cage of the one-way clutch is disclosed. The outer radius of the orbital portion of the inner rings of two rolling bearings disposed at both axial sides of the cage are designed to be larger than the ... | 07/08/2003 |
| 6585615 | Power transmission ring and variable diameter pulley assembly using the same In a power transmission ring, a plastic ring is provided with first and second tapered raceway surfaces on one and the other of lateral surfaces thereof, the first and second tapered raceway surfaces conforming to first and second power transmission surfa... | 07/01/2003 |
| 6413178 | Reversible driven pulley A continuously variable transmission comprising a main shaft (2), a fixed flange (14) and a movable flange (16), a first cam system comprising a cam plate (22) provided with cam surfaces (24), and corresponding cam followers (28), a second cam system also... | 07/02/2002 |
| 6406390 | Continuously variable belt drive system A belt-type continuously variable transfer system (15) includes a driving pulley assembly (20), a driven pulley assembly (22) and a V-shaped belt (24) engaged to transfer rotary power therebetween. The driven pulley assembly (22) can include a ratio adjus... | 06/18/2002 |
| 6186915 | Steplessly variable V-pulley looping transmission A pulling device transmission includes an stepless V-belt connection two pulleys wherein at least one of the pulleys is an adjusting pulley which is composed by two halves between which the belt runs through. The operative diameter of the adjusting pulley... | 02/13/2001 |
| 6135915 | Method of transmission control for belt-type stepless transmission device Drive and driven pulley necessary axial thrusts (Qdrnec, Qdnnec) necessary for power transmission without belt slippage are found in accordance with the input torque and transmission ratio; the vehicle speed and degree of accelerator opening target transm... | 10/24/2000 |
| 6110061 | Device for transmitting rotational power A device for transmitting rotational power from a rotational power source to a driven device having a drive shaft includes at least one elastic connecting member defining outer and inner peripheral surfaces. First and second holder members radially cooper... | 08/29/2000 |
| 6017285 | Variable diameter pulley A variable diameter pulley according to the present invention has a pair of pulley bodies each axially movably fitted around a rotation shaft. A power transmission ring is held between power transmission surfaces formed in a tapered shape on opposed surfa... | 01/25/2000 |
| 6007452 | Line pressure control system for continuously variable transmission accounting for input load changes caused by inertia during shifting A control system for a CVT comprises a controller arranged to compute an engine revolution condition on the basis of an engine revolution speed indicative signal, to compute actual and estimated engine outputs on the basis of the engine revolution conditi... | 12/28/1999 |
| 5924944 | Pulley structure of continuously variable transmission A pulley assembly of a belt type continuously variable transmission having a stationary sheave, a moving sheave and a hydraulic actuator connected at an edge thereof with the moving sheave for controlling a groove width between the stationary sheave and t... | 07/20/1999 |
| 5800298 | Metal V-belt type continuously variable transmission In a metal V-belt type continuously variable transmission having a driving pulley and a driven pulley, the inclination angle of a V-groove in the pulleys is set in a range represented by tan-1 μa | 09/01/1998 |
| 5766105 | Continuously variable transmission capable of torque control A continuously-variable-ratio transmission ("CVT") of the band-and-sheave type capable of "torque control", so that what the operator demands, by movement of the accelerator pedal or other control member, is a particular driving torque applied to the rati... | 06/16/1998 |
| 5725446 | Belt-type automatic transmission A belt-type automatic transmission wherein the engine brake can automatically work when a vehicle runs on a downward slope, comprising a pair of sheaves 21 provided on a driving shaft 20, the pair of sheaves 21 having a fixed sheave 22 and a movable sheav... | 03/10/1998 |
| 5707314 | Method and apparatus for controlling a continuously variable transmission In order to optimize the speed change control of a continuously variable transmission, a necessary minimum primary pressure (Ppmin) for achieving speed change ratio control, a necessary minimum line pressure (Plmin) for the non occurrence of slippage betw... | 01/13/1998 |
