| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474094000 | RESILIENT CONNECTION BETWEEN PULLEY OR GUIDE-ROLL RIM AND MOUNT | 30 |
| 20090197719 | Torsional decoupler - A torsional decoupler comprising a hub having a hub surface, the hub surface having a profile, a pulley having a pulley surface, the pulley surface having a profile, a frictional member disposed between the hub surface and the pulley surface, the frictional member frictionally engaging at least one of the pulley surface or the hub surface, and the frictional member transmitting a torque between the hub and the pulley such that a movement occurs between the hub and the pulley. | 08-06-2009 |
| 20090191995 | Resin pulley - A resin pulley includes: an outer cylindrical portion having an outer circumferential surface on which a belt is to be wound; an inner cylindrical portion which is disposed radially inwards of and concentrically with the outer cylindrical portion; and a plurality of ribs connecting an inner circumferential surface of the outer cylindrical portion and an outer circumferential surface of the inner cylindrical portion. The outer cylindrical portion, the inner cylindrical portion and the ribs are formed integrally from a resin material, and the ribs are provided in such a manner as to be inclined towards a circumferential direction relative to a radial imaginary line as viewed in an axial direction. | 07-30-2009 |
| 20130095964 | TORSIONAL VIBRATION DAMPER - A torsional vibration damper which comprises of a hub | 04-18-2013 |
| 20090291790 | Pulley Assembly and Auto-Tensioner - A pulley assembly of the invention is adapted to impart torsion spring capability between an inside member and an outside member by means of a simple structure. By virtue of the torsion spring capability, the pulley assembly can effectively reduce the variation of belt tension exerted on a pulley portion disposed at either one of the inside member and the outside member, the variations of rotational speed and the like. | 11-26-2009 |
| 20110263365 | Belt pulley damper - A belt pulley damper for attenuating torsional vibrations of a drive shaft and includes a belt pulley for driving a pull mechanism, particularly a pulling belt. A torsional vibration damper, particularly a decoupler for torsional vibrations is connected with a drive flange and includes a driven disk movable circumferentially relative to the drive flange, and a driven disk is axially movable relative to a belt pulley. The belt pulley and the driven disk include axially-opposed teeth. The belt pulley teeth and the driven disk teeth can be engaged below a threshold pull force occurring during drive operation, and can be disengaged above the threshold pull force. In that manner, undesired torsional vibrations can be avoided by a free-wheel device without substantially increasing noise. | 10-27-2011 |
| 20100029422 | Pulley Assembly - A pulley assembly for a flexible motor vehicle transmission, comprising a supporting member rotatable about an axis, a pulley adapted to cooperate with a belt and connected to the supporting member to be rotatable about said axis with respect to the supporting member, elastic spiral means interposed between the supporting element and the pulley and comprising a sliding portion elastically loaded in radial direction against a sliding wall carried by one of either the supporting members or the pulley for tangential force drive coupling pulley to the supporting member. In particular, the elastic spiral means comprise a supporting element and sliding portion comprising at least one runner carried by the supporting element and sliding along the sliding walls. | 02-04-2010 |
| 20100099527 | DAMPER PULLEY ASSEMBLY HAVING A SAFETY DEVICE - A damper pulley assembly has a hub; a seismic mass connected to the hub to define a dynamic torsional vibration damper; a pulley connected to the hub; elastic means for connecting the pulley in torque-transmitting mode to the hub; and one-way stop means for arresting the pulley in a first stop position with respect to the hub or the seismic mass in a first direction, when the elastic means reach a predetermined torsional load. | 04-22-2010 |
| 20080312015 | Torsional vibration damper or decoupler with wound wire springs in a drive pulley - A drive pulley having a hub and a pulley rim is provided, which are mounted in one another so as to be rotatable about a rotational axis, with at least two wound wire springs which are arranged in each case between the hub and the pulley rim in such a manner that they are wound around the rotational axis. In each case one end is supported in the direction of rotation with respect to the hub and the other end is supported in the direction of rotation with respect to the pulley rim and which form a non-supported free spring length between the ends, and which are installed in such a manner that they are pretensioned with respect to each other. At least one of the wire springs bears at one end against a bearing region of one of the parts—hub and pulley rim—and then has a radial distance with respect to a curved supporting face on this one of the parts—hub and pulley rim respectively—which distance increases over the circumference and is reduced progressively to zero over the circumference when the parts—hub and pulley rim—are twisted with respect to each other, while the bearing region is extended into the region of the supporting face | 12-18-2008 |
| 20080312014 | Drive Wheel of an Auxiliary Unit Pulley of an Internal Combustion Engine - A drive wheel of an auxiliary unit pulley of an internal combustion engine is provided, having a rotatable sleeve which is operatively connected to a traction mechanism, having a hub which is rotationally fixed to the drive input axle of an auxiliary unit. A damping device is arranged between the rotatable sleeve and the hub for reducing torsional vibrations. In order to obtain improved damping of torsional vibrations together with increased operational reliability, the damping device ( | 12-18-2008 |
| 20080207364 | Driving pulley with vibration damping means - A driving pulley is provided having a pulley rim and a hub which are rotatably supported inside one another, and having spring means which are mounted between the pulley rim and the hub and whose one end is fixed relative to the pulley rim and whose other end is fixed relative to the hub in the direction of rotation, wherein the spring means consist of spiral or helical springs which are effective in opposite directions. | 08-28-2008 |
| 20080234080 | Motorcycle wheel isolator - A motorcycle wheel isolator comprising a first sprocket member, the first sprocket member having a first projecting member, a second hub member, the second hub member having a second projecting member, at least one first projecting member disposed between two second projecting members, whereby a receiving portion is defined, at least one resilient isolator having a first portion and a second portion connected by a connecting member, the resilient isolator disposed in the receiving portion, an edge of each first portion and second portion having a chamfer disposed adjacent either the first projecting member or second projecting member, each first portion and second portion having a projecting member disposed on an outer surface of each first portion and second portion such that a compressive force applied to the first portion and second portion causes a bending mode in each first portion and second portion, and each first portion and second portion having a relief portion disposed on an outer surface of each first portion and second portion such that the first portion and second portion may expand under the compressive force. | 09-25-2008 |
| 20120295746 | 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). | 11-22-2012 |
| 20080280709 | Power Transmission Device - An object of the present invention is to provide a power transmission device in which the cushioning effect due to a cushioning member can be maintained for a long period of time, and the process for assembling the cushioning member can be simplified. In the power transmission device in accordance with the present invention, A plurality of convex portions ( | 11-13-2008 |
| 20090005201 | Pulley assembly for a power transmission belt - A pulley assembly has a first body to engage a power transmission belt. The first body is rotatable around a first axis. A second body is movable relative to the first body around the first axis. First and second axially spaced elastic members each has a radially inner portion and a radially outer portion. One of: (a) the radially inner portions of the first and second members; and (b) the radially outer portions of the first and second members are: (i) coupled to move together around the first axis; and (ii) each movable relative to the first and second bodies around the first axis. The other of: (a) the radially inner portions of the first and second members; and (b) the radially outer portions of the first and second members are fixedly coupled, one each to the first and second bodies, to follow movement of the first and second bodies around the first axis. | 01-01-2009 |
| 20110224038 | Over-Running Decoupler With Torque Limiter - A method for producing an over-running decoupler that is configured to transmit rotary power between a rotary member and a hub. The over-running decoupler includes a one-way clutch having a clutch spring, a carrier that is coupled to the clutch spring and at least one spring that resiliently couples the carrier to the hub. The method includes: establishing a desired fatigue life of the at least one spring; establishing a design deflection of the at least one spring during resonance, wherein deflection of the at least one spring at the design deflection during resonance does not reduce a fatigue life of the at least one spring below the desired fatigue life; and preventing resonance in the over-running decoupler by controlling a maximum deflection of the at least one spring such that the maximum deflection is less than or equal to the design deflection. | 09-15-2011 |
| 20090105021 | TRANSMISSION JOINT PULLEY ASSEMBLY - A pulley assembly ( | 04-23-2009 |
| 20090305828 | TRACTION MECHANISM DRIVE FOR AN INTERNAL COMBUSTION ENGINE - The invention relates to a traction mechanism drive for an internal combustion engine, comprising at least one drive pulley, at least one driven pulley, belt means which are embodied as a belt or chain, a tensioning element and a damping element. The invention is characterized in that at least one damping element is arranged on a driven or drive pulley and is embodied as a torsional vibration damper which comprises at least two sections which can be rotated against each other counter to the force of the energy accumulator and a friction element. | 12-10-2009 |
| 20110245000 | Isolator - An isolator comprising a shaft ( | 10-06-2011 |
| 20090318252 | PULLEY ASSEMBLY - A pulley assembly for flexible motor vehicle transmission, comprising a supporting member rotatable about an axis, a pulley adapted to cooperate with a belt and connected to the supporting member to be rotatable about said axis with respect to the supporting member, a spiral spring interposed between the supporting element and the pulley and comprising a sliding portion elastically loaded in radial direction against a sliding wall carried by one of either the supporting members or the pulley for coupling by a tangential force transmission the hub to the supporting member. In particular, the sliding portion defines a first contact zone and a second contact zone in which is concentrated the contact pressure exchanged between the sliding portion and the sliding wall, the first and second contact zone being reciprocally and angularly distanced. | 12-24-2009 |
| 20120015768 | Isolating Pulley - An isolator comprising a hub, a pulley journalled to the hub, the pulley having a stop, the hub having a resilient member for engaging the stop, a torsion spring connected between the pulley and the hub, an inertial member attached to the hub by a flexible member, the inertial member disposed within a pulley receiving portion that is disposed radially inward of a pulley belt engaging surface, and the resilient member having a convex surface for engaging the stop such that a spring rate of the resilient member is non-linear upon a compression against the stop. | 01-19-2012 |
| 20110065537 | Isolator decoupler - An isolator decoupler comprising a pulley, a shaft, a bushing slidingly engaged with the pulley and slidingly engaged with the shaft, the pulley journalled to the shaft by a bearing, a one-way clutch fixed to the shaft and engaged with the bushing whereby the bushing rotates in unison with the one-way clutch, a torsion spring engaged between the pulley and the one-way clutch to resiliently couple the pulley to the shaft, and the pulley non-resiliently directly coupleable to the shaft in a temporary predetermined loaded condition. | 03-17-2011 |
| 20120135830 | Torsion Cushioning Sprocket - A drive sprocket for machines such as a motorcycle includes cushioning dements to reduce spikes in stress levels between the machine's power transmission and a driven member, such as the wheel of motorcycle. The sprocket has an inner plate which is located coaxially within the outer ring. The inner plate is formed with outwardly projecting lugs that are arranged to mesh with the inwardly projecting lugs of outer ring. The outwardly projecting lugs comprise six wide lugs and six narrow lugs disposed alternately around the outside of the inner ring. The outer edges of outwardly projecting lugs are formed with a bearing slot. In the case of the six wide lugs, their bearing slots cooperate with bearing slots on the inside wall of the outer ring to provide a ball bearing race for bearings. The sides of the lugs are also formed with cushion slots to engage cushioning elements. | 05-31-2012 |
| 20120172163 | ELASTOMERIC SPRING PULLEY ASSEMBLY FOR ROTARY DEVICES - A pulley assembly for a rotary device such as an automotive alternator comprising a pulley, a hub, and one or more elastomeric springs to cushion and attenuate the effect of sudden rotational velocity variations of the pulley and the hub. Premature spring failure is prevented by a mechanical stop arrangement that limits the amount of relative rotation between the pulley and hub to prevent over-compression of the springs. | 07-05-2012 |
| 20100273589 | SOUND-DAMPING UNIT FOR A SPROCKET, AND SPROCKET - A sound-damping unit for a sprocket has a mounting foot for connection to a sprocket and an elastic body placed on the mounting foot that is suitable for cushioning a chain running onto the sprocket. The elastic body is provided with a protective cap or protective layer. A sprocket according to the invention includes a circular sprocket disc having a number of teeth and tooth gaps in the circumferential direction. The sprocket is equipped with at least one sound-damping unit that is configured to reduce the noise upon a chain running onto said sprocket. The sound-damping unit is at least one sound damping unit as above. | 10-28-2010 |
| 20120231909 | LIGHTWEIGHT DAMPER PULLEY - The invention is a damper pulley which comprises of a cylindrical hub | 09-13-2012 |
| 20120322592 | OVERRUNNING PULLEY WITH ELASTOMER TORSIONAL DAMPING SYSTEM - The present model refers to the technical field of parts for the automobile sector, more specifically a overrunning pulley with elastomer torsional damping system used preferably in alternator coupled to the crankshaft through a belt, with the aim to absorb and reduce torsional vibrations, which the entire system coupled to the aforementioned belt is subjected, as well as mitigate the rotation variations that are transmitted to the alternator through the one-way clutch by rollers. | 12-20-2012 |
| 20120094791 | ISOLATION DAMPER PULLEY FOR VEHICLE - A damper pulley for a vehicle may include a damper portion connected to a crankshaft, a pulley portion connected to the damper portion, and a bearing portion disposed between the damper portion and the pulley portion, wherein the bearing portion includes a first bearing supporting a load applied in an axial direction and a second bearing supporting a load applied in a direction perpendicular to the axial direction, and the first and second bearings are engaged through protrusions and depressions. | 04-19-2012 |
| 20120088616 | Isolator with Damping - An isolator comprising a hub, a pulley frictionally engaged with the hub through a bushing for instantaneous rotational movement, the bushing and hub having a coefficient of friction, a resilient member engaged between the pulley and the hub for transmitting a torque, and a locking member for retaining the pulley on the hub. | 04-12-2012 |
| 20100167856 | DEVICE FOR DRIVING A GENERATOR BY A BELT DRIVE OF AN INTERNAL COMBUSTION ENGINE - A device for connecting a generator to a belt drive of an internal combustion engine is provided, which includes a belt pulley ( | 07-01-2010 |
| 20120149511 | Isolator decoupler - An isolating decoupler comprising a pulley having a pulley inner surface, a hub having a radially extending arm, the radially extending arm having a frictional surface slidingly engaged with the pulley inner surface, a spring fixed to the pulley, the spring intermittently engageable with the radially extending arm, an elastomeric member disposed between the spring and the radially extending arm; and the radially extending arm intermittently engageable with a pulley stop. | 06-14-2012 |
