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| Number | Title | Issue Date |
| 7806790 | Slippage detection system and method for continuously variable transmissions A slippage detection system for a continuously variable transmission capable of continuously changing a ratio between a speed of rotation of an input member and a speed of rotation of an output member is provided. The slippage detection system calculates a correlati... | 10/05/2010 |
| 7771299 | V-belt continuously variable transmission and straddle-type vehicle A V-belt continuously variable transmission (CVT) for a straddle-type vehicle includes a measurement plate for a rotational speed sensor for detecting a rotational speed of a primary sheave shaft to control a speed change ratio. The measurement plate is disposed on ... | 08/10/2010 |
| 7387589 | Shift control apparatus of belt type continuously variable transmission A shift control apparatus of a belt type continuously variable transmission is comprised of a controller which is arranged to set a first hydraulic pressure controlled variable based on a first target transmission ratio determined based on a vehicle traveling condit... | 06/17/2008 |
| 7351169 | Utility machinery and associated control arrangements A power transmission device for utility machinery is disclosed, the device including: a) a sleeve supporting a first sheave member having a first face; b) a hub received through the sleeve and moveable axially in relation thereto, the hub supporting a second sheave ... | 04/01/2008 |
| 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 |
| 7276002 | Surface texture configuration for CVT pulley A pulley engageable with a belt for use in a continuously variable transmission includes first and second pulley halves rotatable about an axis and relatively moveable in a direction of the axis. The pulley halves include truncated conical portions symmetrically opp... | 10/02/2007 |
| 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 |
| 7217204 | Continuously variable belt drive system A continuously variable belt drive system including a driving pulley assembly, a driven pulley assembly, and a V-shaped belt engaged to transfer rotary power therebetween is disclosed herein. The driving pulley assembly includes an idler pulley portion. As the belt ... | 05/15/2007 |
| 7172523 | Automatic mechanically controlled continuously-variable-ratio drive A continuously-variable-ratio drive, having an input shaft; a flywheel integral with the input shaft; a drive pulley idle with respect to the input shaft and defined by two half-pulleys defining a groove of variable size for a V belt; and a centrifugal control assem... | 02/06/2007 |
| 7163477 | Continuously variable transmission with decoupled centrifugal weight A drive clutch for a CVT comprising a stationary sheave, a movable sheave, a motor and a centrifugal weight system. The movable sheave is movable closer to or further from the stationary sheave relative to a longitudinal axis. The motor may be coupled to an input sh... | 01/16/2007 |
| 7112159 | Continuously variable transmission A continuously variable transmission is disclosed for use in rotationally or linearly powered machines and vehicles. The transmission provides a simple manual shifting method for the user. Further, the practical commercialization of traction roller transmissions req... | 09/26/2006 |
| 7102245 | Integral generator/pinion assembly for axle power generation A vehicular axle assembly includes an electrical generator for generating electricity to supply power to one or more electrical components therein during operation. The axle assembly includes a hollow housing that rotatably supports a differential mechanism therein.... | 09/05/2006 |
| 7086981 | Transmission and constant speed accessory drive An infinitely variable speed ratio planetary ball transmission comprising planetary members in rolling contact with moveable inner and outer races and a constant speed accessory drive system utilizing the transmission. The transmission is infinitely variable between... | 08/08/2006 |
| 7081057 | Driven pulley system with removable cam A driven pulley system for use in a torque converter of a vehicle is disclosed. The driven pulley system includes a cam. The cam is arranged to be removed from the driven pulley system for replacement of the cam. ... | 07/25/2006 |
| 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 |
| 7044872 | Methods and apparatus for providing reverse drive in a recreational vehicle A vehicle with a continuously variable transmission (continuously variable transmission) includes a torque responsive clutch having a cam and at least one coupling. The cam has a plurality of projecting surfaces, and a plurality of slots being defined between the pr... | 05/16/2006 |
| 7037226 | Dual cam surface clutch A belt-driven clutch system having a driven clutch with a particular arrangement of cam followers and cam slots. One embodiment of the invention is a clutch having a fixed sheave, a movable sheave and a housing mounted to the movable sheave. The housing has a cam sl... | 05/02/2006 |
| 7029410 | System for preventing belt slip of belt-type continuously variable transmission CVT control unit of a belt CVT checks whether a reverse rotation of pulleys is generated. When the reverse rotation is generated, a PLpri torque capacity is calculated from a primary pressure Ppri, and this PLpri torque capacity is used as a torque limit value of a ... | 04/18/2006 |
| 7014583 | Continuously variable transmission The invention concerns a continuously variable belt-drive transmission, especially for motor vehicles. In the pressure less state of the transmission, the axially displaceable cone pulley of the input shaft is loaded with an axial force by a spring system in a manne... | 03/21/2006 |
| 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 |
| 6958024 | Automotive V-belt nonstage transmission An automotive V-belt nonstage transmission includes a drive pulley having a fixed sheave fixedly mounted on a drive shaft, a movable sheave mounted on the drive shaft, a return coil spring, a flyweight mechanism, a collar being rotatable relative to the fixed and mo... | 10/25/2005 |
| 6958025 | Belt tensioner for use with torque converter A belt tensioner for use with a torque converter to adjust the overall speed of a vehicle is disclosed. The belt tensioner includes motion transmitting fixed unit configured to be fixed to a vehicle output shaft for movement therewith and a belt tensioning movable u... | 10/25/2005 |
| 6953400 | Driven pulley system for use in torque converter A driven pulley system for use in a torque converter of a vehicle is disclosed. The driven pulley system includes a motion-transmitting fixed unit and a belt-tensioning movable unit. The fixed unit is arranged to be fixed to a rotatable output shaft of the vehicle f... | 10/11/2005 |
| 6902502 | Continuously variable transmission A continuously variable transmission including a driving pulley, a driven pulley, an endless dry-type belt wound around both pulleys, a tension-adjusting device for pressing the slack side of the belt to generate belt tension, stroke mechanisms provided on both pull... | 06/07/2005 |
| 6749530 | Belt-type continuously variable transmission The rigidity of a movable pulley half is enhanced by the rigidity of a cylinder fixed to a back surface of the movable pulley half and influences of a controlled hydraulic pressure and a centrifugal hydraulic pressure which are exerted in a hydraulic fluid chamber p... | 06/15/2004 |
| 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 |
| 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 |
| 6520878 | Driving pulley for scooters and other vehicles The driving pulley (12) is used in a continuously variable transmission (CVT) and comprises two flanges (22,24) around which a drivebelt (20) is partially wound. The first flange (22) is fixed in translation with reference to the drive shaft (16) while th... | 02/18/2003 |
| 6478701 | Belt type nonstage transmission system In a belt type continuously variable speed system, when a hydraulic cylinder (110) operates, the hydraulic cylinder (110) and an elastic member (134) in a tensioner (104) draw a belt (102) against an elastic member contained in a variable radius pulley (1... | 11/12/2002 |
| 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 |
| 6379274 | Driven pulley The driven pulley (10) is used in a continuously variable transmission (CVT). It is coaxially mountable around a main shaft (12) and comprises two opposite conical flanges, namely a first flange (14) and a second flange (18), which face each other. An ann... | 04/30/2002 |
| 6334826 | V belt type automatic transmission In a V belt type automatic transmission, circumferential gaps between the movable sheave part of a driving sheave and a spider is maintained constant so that the backlash between the movable sheave part and the spider is substantially zero to prevent the ... | 01/01/2002 |
| 6290620 | Continuously variable transmission with control arrangement and method for reducing impact of shock load A continuously variable transmission and method for preventing transmission belt slippage in the case of a sudden change in load torque on the transmission involve one or both of inserting a lag in the transmission with a torsional spring damper or elasto... | 09/18/2001 |
| 6179739 | Continuously variable transmission with control arrangement and method for preventing transmission belt slippage A continuously variable transmission and method for preventing transmission belt slippage in the case of a sudden increase in load torque on the transmission involves both inserting a lag in the transmission to allow the control loops time to respond to t... | 01/30/2001 |
| 6155940 | Adjustable cam weights for torque converter A torque converter assembly is provided for adjusting the overall speed of a vehicle. The assembly comprises a driver pulley including an outer drum, a movable flange, a chamber formed by the outer drum and movable flange, a first weight and a second weig... | 12/05/2000 |
| 6120399 | Continuously variable transmission driven element The invention is a secondary, or driven, element suitable for use as one element of a three-element continuously variable transmission comprising a primary drive sheave, a V-belt, and the secondary drive sheave. Both sheaves have variable pitch diameters.... | 09/19/2000 |
| 6099424 | Continuously variable transmission with control arrangement and method for recovering from transmission belt slipping A continuously variable transmission, and particularly a control arrangement thereof and a method for recovering belt slippage in the transmission, are disclosed. A source of hydraulic pressure is operatively connected for driving each of the hydraulicall... | 08/08/2000 |
| 6068564 | Continuously variable transmission with belt-driven pulley system A continuously variable transmission of an automotive vehicle comprises a primary pulley disposed on a power input shaft, and a secondary pulley disposed on a power output shaft. Each of the primary and secondary pulleys includes a fixed wheel counterpart... | 05/30/2000 |
