Class / Patent application number | Description | Number of patent applications / Date published |
474171000 | And additional coaxial surface for engaging same belt in shifted condition or for engaging auxiliary belt, brake, or clutch member | 8 |
20090291794 | VEHICULAR POWER TRANSMISSION APPARATUS - In a motor generator pulley | 11-26-2009 |
20090305830 | Hub-Pulley Assembly Having A Rotationally Disengageable Pulley - A hub-pulley assembly comprising a hub adapted to be connected to a rotational member of a motor vehicle and having an axis, a pulley adapted to cooperate with a drive belt and driving means arranged between the hub and the pulley. The driving means comprise bidirectional disengagement means which allow a relative rotation between the hub and the pulley in both directions. | 12-10-2009 |
20100234156 | PULLEY ASSEMBLY FOR A START-STOP BELT DRIVE - Described herein is a pulley assembly for a start-stop belt drive, comprising a hub having an axis and designed to be connected to a crankshaft of an internal-combustion engine, a pulley, which is designed to co-operate with a belt of a belt drive and is connected in a rotatable way on the hub, and a seismic mass, which is connected to the hub so as to rotate with respect to the hub so as to define a damping device for damping torsional vibrations. | 09-16-2010 |
20100234157 | FIXED SHEAVE FOR STEPLESS TRANSMISSION, METHOD FOR MOUNTING THE FIXED SHEAVE, AND METHOD FOR MANUFACTURING THE FIXED SHEAVE - A fixed sheave is formed by pressing fitting and integrating a sheave portion and a shaft that have been shaped separately. The shaft is formed in a stepwise manner, and has a bearing disposition portion at one end of the shaft and a sheave portion fixing section that has a diameter smaller than that of the bearing disposition portion, and that is on an opposite side of the step from the bearing disposition portion. The sheave portion is fixed to the sheave portion fixing section in abutment, against the step, with a rear surface of the sheave portion facing the one end of the shaft. A finish processing is performed to either or both of the sheave portion and the shaft after the fixing. A first bearing is inserted from the one end of the shaft and disposed at the bearing disposition portion after the finish processing. | 09-16-2010 |
20110281678 | OVERRUNNING ISOLATING DECOUPLER PULLEYS - Embodiments of the present invention provide improved overrunning pulleys that overcome one or more of the deficiencies in the prior art noted above. Embodiments of the present invention provide pulleys that are “springy” in the torque direction, yet have a lower effective spring constant (e.g., are less stiff) over a greater angular range. Further, in at least some embodiments, the inventive pulleys use a low cost and simple torque transfer geometry. Further, in at least some embodiments, the inventive pulleys afford significant overrun. Further, in at least some embodiments, the inventive pulleys are radially small in an overall envelope, in order to allow the alternator to reach its highest possible rotational speed, and thus output, during engine idle. Further, in at least some embodiments, the inventive pulleys are more durable, as they offer the aforementioned dynamics in both directions (torque and counter-torque). | 11-17-2011 |
20120122621 | Apparatus for Driving and Braking a Shaft - An apparatus for driving and braking a cutting blade of a lawn mower is disclosed. The apparatus includes a shaft extending through a housing for rotating the blade, and an engine-driven pulley. The apparatus includes means for biasing the pulley toward the housing, and means for translating the pulley away from the housing. The apparatus has a stopped position in which the pulley and housing are in friction contact, and a cutting position in which the pulley and housing are not in friction contact. When the engine delivers power to the pulley, the apparatus moves from the stopped position to the cutting position such that the pulley and the housing are not in friction contact and the blade rotates. When power delivery to the pulley ceases, the apparatus moves from the cutting position to the stopped position, placing the pulley and housing in friction contact, and the blade stops. | 05-17-2012 |
20150345610 | DECOUPLER FOR DAMPING A TORQUE TRANSMISSION BETWEEN A DRIVE SHAFT OF A MOTOR VEHICLE AND A BELT PULLEY - A decoupler for damping torque transmission irregularities between a vehicle drive shaft and a belt pulley for driving vehicle auxiliary components. The decoupler includes first and second ramp rings for transmitting torque delivered by the drive shaft to the belt pulley. A spring arrangement provides for axial engagement of the ramp rings. The ramp rings have respective sloped push and pull ramps directed toward the adjacent ramp ring so that in a coasting mode of the vehicle the ramp rings rotate relative to each other and in a vehicle drive mode the ramp rings are drawn toward one another. The decoupler includes a pulley damper for damping torque transmission irregularities to reduce noise emission. | 12-03-2015 |
20160091076 | ALTERNATOR DAMPER PULLEY FOR VEHICLE - An alternator damper pulley for a vehicle includes a pulley body connected to an engine to receive a rotational power from an engine. A shaft connection portion is provided within the pulley body such that a rotational shaft of an alternator is insertedly coupled therein. A torsion spring is installed on an outer circumferential surface of the shaft connection portion to reduce a variation of the rotational power transmitted from the pulley body. A clutch is interposed between the torsion spring and the pulley body to connect or disconnect the shaft connection portion and the pulley body. A friction damper is installed to apply frictional damping force to the shaft connection portion. | 03-31-2016 |