Resilient Connection Between Pulley Or Guide-roll Rim And Mount Patents (Class 474/94)
  • Patent number: 10145444
    Abstract: Systems are provided for a damper cover for an engine crankshaft damper. In one example, a damper cover may include a frame and an inset, with extensions of the frame adapted to couple to slots of an engine crankshaft damper, and with portions of the inset positioned between each extension and each corresponding slot. As one example, the frame may be comprised of metal and the inset may be comprised of a damping material such as foam or rubber.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: December 4, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Shashin Shah, Shaji Mathews, Chuck Raymond Kvasnicka, Nathaniel David Hansen, Tom Xu
  • Patent number: 10078308
    Abstract: Timepiece wheel with play take-up, including a toothing, each tooth of which includes first and second half-teeth each including a part of the tooth profile, and movable with respect to each other against elastic return means, the wheel including, axially stacked, a first and a second half-wheel respectively carrying the first and second half-teeth and having limited rotational mobility with respect to each other, about the axis of this toothing, and against the elastic return means, the toothing of each half-wheel overhanging the other half-wheel, each half-wheel including hollows inside each of which is movable an opposite half-tooth, between two successive half-teeth.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: September 18, 2018
    Assignee: Blancpain SA
    Inventor: Julien Feyer
  • Patent number: 9879752
    Abstract: A device that will allow a go kart to smoothly accelerate and decelerate particularly during racing the go cart. This device once assembled will allow the gradual absorption of shock on the drive chain as it rotates around thereby, rotating the axle of the go kart.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: January 30, 2018
    Inventor: David Hicken
  • Patent number: 9850997
    Abstract: A filtering pulley for an accessory drive of an internal combustion engine, having a hub suitable for connection to an engine accessory, an annular crown provided with a profile configured to cooperate with a drive belt, a coil spring able to transmit torque between the crown and the hub, a first carrier constrained to a first end of the spring and a second carrier constrained to a second end of the spring. The annular crown is externally coaxial to the hub and supported in a rotationally free manner on the hub, and each of the carriers is rotationally coupled to both the hub and the crown with a limited possibility of relative rotation with respect to each of them.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: December 26, 2017
    Assignee: Dayco Europe S.R.L
    Inventors: Gianluca Cariccia, Federico Domenico Licata
  • Patent number: 9702412
    Abstract: In an aspect, the invention is directed to a clutched device that includes a clutch input member, a clutch output member, and a wrap spring clutch. The wrap spring clutch is engageable with the clutch input member and the clutch output member and has a radially outer surface and a radially inner surface. One of the radially outer and inner surfaces is engageable with a clutch engagement surface on one of the clutch input member and the clutch output member. The clutch engagement surface has a surface finish that includes a plurality of peaks and valleys, wherein the peaks engage the wrap spring clutch and each have a selected width.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: July 11, 2017
    Assignee: LITENS AUTOMOTIVE PARTNERSHIP
    Inventor: Evan J. Hurry
  • Patent number: 9581233
    Abstract: Torsional vibration dampers having isolator members (crankshaft damper-isolators) are disclosed that include a hub defining an annular receptacle, a pulley body having a belt engaging surface, a damper assembly disposed between an outermost radial surface of the hub and the pulley body, an isolator member seated in the annular receptacle of the hub, and a slide bearing disposed between an outer radial surface of the hub and the sleeve of the pulley body. The isolator member is engaged with both the hub and the pulley body for rotation therewith when the hub and pulley body rotate at the same speed and when the hub rotates relative to the pulley body. The isolator member may be an elastomeric isolator or a torsion spring isolator. The slide bearing axially retains the pulley body to the hub and allows the pulley body to rotate relative to the hub.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: February 28, 2017
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventor: Suhale Manzoor
  • Patent number: 9200681
    Abstract: A friction clutch includes a clutch boss and a pressure member that change in a relative position in a rotation direction. The clutch boss and the pressure member respectively include cam surfaces that come into contact with each other when the relative position of the clutch boss and the pressure member changes. A first damper member configured to damp a collision between the cam surfaces is provided in the friction clutch. Generation of noise due to the collision between the cam surfaces when the relative position of the clutch boss and the pressure member rapidly changes in the rotation direction is significantly reduced or prevented.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: December 1, 2015
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Hiroyuki Tokumoto
  • Patent number: 9182028
    Abstract: A pulley assembly for an automobile auxiliary apparatus, such as an alternator, that dampens torsional impacts and reduces the stress on the auxiliary apparatus, the belt drive system and other apparatuses, by use of both wear-prone damping elements and a one-way overrunning clutch mechanism allowing for the free run of the pulley shaft.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: November 10, 2015
    Assignee: MOTORCAR PARTS OF AMERICA, INC.
    Inventors: John G. Agnitch, Nelson Meza
  • Patent number: 9175667
    Abstract: A fastening system used for the joint between a rotary shaft and a wind turbines pitch system which includes a front flange and a rear flange, which are joined together and supported on the hollow rotary shaft, and which are coupled to the pitch system having the bearings for the shaft and the star-shaped part. A fastening method couples the rear flange to the hollow shaft with a tapered collar and also to the front flange through spacer bushings.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: November 3, 2015
    Assignee: GAMESA INNOVATION & TECHNOLOGY, S.L.
    Inventors: Daniel Artal Lorente, Fernando De Las Cuevas Jimenez, Fermin Lazcoz Santesteban, Pedro Munarriz Andres
  • Patent number: 9175763
    Abstract: A belt pulley is provided for a crankshaft in a vehicle. The belt pulley can be mounted on an end of the crankshaft projecting from an engine block. The belt pulley includes, but is not limited to a drive disc, which can be fixed on the end of the crankshaft projecting from the engine block in a rotationally fixed manner, vibration damper which includes, but is not limited to a bulge that is elastically connected to the drive disc and an end body, which includes, but is not limited to a hollow space. A sound-damping component is arranged in the hollow space and the hollow space is covered by means of a cover disc.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 3, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Tobias Wolf
  • Publication number: 20150141182
    Abstract: An assembly comprising: a powder metal outer part (22) having a radially inward facing cylindrical surface (54) with a plurality of facets (52) formed thereon that, in an alternating fashion, extend in an axial direction from an axial side of the powder metal outer part toward an opposite axial side of the powder metal outer part to a position between the opposing axial sides of the powder metal outer part; a powder metal inner part (20) having a radially outward facing cylindrical surface with a plurality of facets formed thereon that, in an alternating fashion, extend in an axial direction from an axial side of the powder metal inner part toward an opposite axial side of the powder metal inner part to a position between the opposing axial sides of the powder metal inner part; and an intermediate component (26) disposed between the cylindrical surfaces of the powder metal outer part and the powder metal inner part that connects the powder metal outer part and the powder metal inner part together.
    Type: Application
    Filed: April 23, 2013
    Publication date: May 21, 2015
    Inventors: Joel H. Mandel, Donald P. Cooper, John P. Mohr
  • Patent number: 9033832
    Abstract: An isolating decoupler comprising a shaft, a pulley journalled to the shaft, a torsion spring engaged with the pulley, a wrap spring frictionally engageable with the shaft, the torsion spring and wrap spring connected in series such that each is torsionally loaded in a winding direction, the wrap spring comprising a variable cross-section having a first cross sectional dimension and a second cross sectional dimension, and the wrap spring temporarily releasable from the shaft in an overtorque condition by contact with the pulley urging the wrap spring in an unwinding direction.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: May 19, 2015
    Assignee: GATES CORPORATION
    Inventors: Alexander Serkh, Robert Deady, Dean Schneider
  • Publication number: 20150105196
    Abstract: A damper pulley may include a damper hub part coupled to a crank shaft rotated upon receiving rotary driving force of an engine such that the damper hub part is integrally rotated with the crank shaft and a damper pulley part coupled to the damper hub part such that the damper pulley part is integrally rotated with the damper hub part. A power transmission unit is connected to the damper pulley part. The damper hub part may be made of a material comprising forged aluminum and the damper pulley part may be made of a material comprising a metal. The damper pulley has a reduced overall weight, and vibrations and impact can be reduced to enhance ride comfort.
    Type: Application
    Filed: December 31, 2013
    Publication date: April 16, 2015
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventor: Jae Kwon LEE
  • Patent number: 8985293
    Abstract: In one aspect, the invention is directed to a decoupler assembly for between an endless drive element and a shaft. The endless drive element may be, for example, an accessory drive belt from a vehicular engine. The shaft may be, for example, the input shaft of a belt-driven accessory, such as an alternator or a compressor. The decoupler assembly includes a hub that mounts to the shaft, a pulley that is rotatable with respect to the hub, a dampening spring and a clutch member. A part of the pulley is supported on a pulley support surface on the hub. There is a gap between the pulley and the pulley support surface. The gap has lubricant therein to facilitate sliding between the pulley and the pulley support surface. By eliminating the use of a polymeric bushing between pulley and the hub, there are several advantages that are provided.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: March 24, 2015
    Assignee: Litens Automotive Partnership
    Inventors: Patrick Marion, Lucas Wilson
  • Publication number: 20150072813
    Abstract: A crank pulley decoupling device includes: a crank pulley connected to one end of a crankshaft and configured to transmit a rotational force; a first spring configured to be inserted into the crank pulley and to have one end provided in the crank pulley and the other end provided in the crank shaft; and a second spring configured to be inserted into the crank pulley and to be provided on an outer circumferential surface of the crankshaft. Spring design and design change are freely done by utilizing space in the crank pulley while the first and second springs are spaced apart so that impact therebetween is reduced, thereby improving durability and preventing decrease in efficiency due to friction and thus improving the product value.
    Type: Application
    Filed: December 13, 2013
    Publication date: March 12, 2015
    Applicant: HYUNDAI MOTOR COMPANY
    Inventor: Ki Bong YOON
  • Patent number: 8951153
    Abstract: The present power transmission mechanism comprises: a first rotation member mounted integrally rotatably on the rotation shaft of a drive apparatus; a second rotation member rotatable integrally with or relative to the first rotation member; an elastic member interposed between the first and second rotation members which, when the first and second rotation members rotate relative to each other, absorbs a rotation difference between them; and, a switching portion which includes a mass member mounted on one of the first and second rotation members and rotatable integrally therewith, and an energizing member for energizing the mass member in a direction where it can be contacted with the other of the first and second rotation members.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 10, 2015
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Tomokazu Ishida, Hayato Shimamura
  • Publication number: 20150024885
    Abstract: A combustion engine component comprises an assembly of a belt pulley for driving auxiliary engine equipment and a torsional vibration damper. The assembly is adapted to be fixed on an engine crankshaft, wherein the belt pulley is of a so called decoupling type, arranged to be able to change its rotational angle relative to the crankshaft and the torsional vibration damper. The torsional vibration damper is partially positioned in a corresponding annular recess in the belt pulley, creating an annular cavity in the recess between the torsional vibration damper and the belt pulley. An annular seal ring is positioned in the annular cavity and is arranged to close off at least a part of the annular cavity from the air surrounding the assembly.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 22, 2015
    Inventors: Christer ODENMARCK, Christopher CULLEY, Hayder AL-KATTAN, Andreas STUFFER, Alexander ROSE, Dimitri SIEBER, Christian FECHLER
  • Patent number: 8931610
    Abstract: An isolator decoupler comprising a pulley, a shaft, the pulley journalled to the shaft on a low friction bushing, a spring carrier, the pulley journalled to the spring carrier on a low friction bushing, the spring carrier journalled to the shaft on a low friction bushing, a torsion spring coupled between the pulley and the spring carrier, a one way clutch spring frictionally engaged with the shaft, the one way clutch spring coupled to the spring carrier, the one way clutch spring is disposed radially inward of the torsion spring, and the pulley temporarily engagable with an end of the one way clutch spring whereby the frictional engagement of the one way clutch spring with the shaft is temporarily diminished.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: January 13, 2015
    Assignee: The Gates Corporation
    Inventor: Alexander Serkh
  • Patent number: 8920271
    Abstract: A drive sprocket for machines such as a motorcycle includes cushioning elements 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.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 30, 2014
    Inventor: Ryan Burke
  • Patent number: 8888622
    Abstract: An isolator decoupler comprising a shaft, a pulley journalled to the shaft, a clutch carrier journalled to the shaft through a one-way clutch, a torsion spring engaged between the pulley and the clutch carrier, the torsion spring loadable in an unwinding direction, the torsion spring and the pulley having a predetermined clearance between a torsion spring outside diameter surface and a pulley inside diameter surface, and whereby the torsion spring outside diameter surface and a pulley inside diameter surface come into a progressive frictional engagement by torque load dependent radial expansion of the torsion spring.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: November 18, 2014
    Assignee: The Gates Corporation
    Inventors: Xiaohua Joe Chen, John T. Harvey, Rudy Pupulin, Keming Liu, Alexander Serkh, Imtiaz Ali, Dean Schneider, Peter Ward
  • Patent number: 8888619
    Abstract: 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.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: November 18, 2014
    Assignee: Litens Automotive Partnership
    Inventors: John R. Antchak, Jun Xu
  • Publication number: 20140329629
    Abstract: A harmonic damper for use in vehicular accessory drive systems. The harmonic damper includes a one-piece inertia ring manufactured from a sheet metal blank using a cold forming process to define a series of interconnected folded ring sections.
    Type: Application
    Filed: March 11, 2014
    Publication date: November 6, 2014
    Applicant: MAGNA Powertrain, Inc.
    Inventor: Dejan Vukojicic
  • Publication number: 20140274508
    Abstract: An efficiency boost of power transmission to the front end accessory drive (“FEAD”) system is provided by a crankshaft damper having a hub, an inertia member operably attached to the hub by an elastomeric member, and a one-way clutch operably attached to the inertia member and to drive a belt-engaging surface. The one-way clutch is operably associated with the crankshaft damper for increasing the average RPM input to the FEAD system relative to the average crankshaft input.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventor: Robert James Crist
  • Patent number: 8834308
    Abstract: A transporting apparatus is disclosed. The transporting apparatus comprises a mounting plate; a assistant wheel assembly attached to the mounting plate, the assistant wheel assembly comprising an inner wheel, an outer wheel, and an elastic member; the elastic member is between the inner wheel and the outer wheel; a driving wheel movably attached to the mounting plate; a driving member secured to the driving wheel; and a belt connecting the outer wheel and the driving member; wherein the elastic member is generally deformed at a location where the belt warps on the outer wheel.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: September 16, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Hsiu-Yu Lin
  • Patent number: 8820503
    Abstract: An isolator decoupler comprising a pulley, a shaft, the pulley journalled to the shaft on a low friction bushing, a spring carrier disposed within the pulley, a torsion spring coupled between the pulley and the spring carrier, a wrap spring one way clutch wrapped about the shaft and having a frictional engagement therewith, the wrap spring one way clutch coupled to the spring carrier, the wrap spring one way clutch is disposed radially inward of the torsion spring, and the pulley temporarily engagable with an end of the wrap spring one way clutch in an unwinding direction whereby a temporary contact between the wrap spring one way clutch end and the pulley will temporarily diminish the frictional engagement of the wrap spring one way clutch with the shaft.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: September 2, 2014
    Assignee: The Gates Corporation
    Inventors: Dean Schneider, Alexander Serkh, Peter Ward
  • Patent number: 8813928
    Abstract: An alternator isolating decoupler comprising an alternator shaft, a one-way clutch engaged with the alternator shaft, a first wrap spring releasably engaged with the one-way clutch, a second wrap spring releasably engaged with the one-way clutch, the second wrap spring arranged in parallel with the first wrap spring, the first wrap spring and the second wrap spring in nested relation, the first wrap spring and the second wrap spring each having an end releasably engagable with an end cap, the end cap fixedly connected to an outer housing, the first wrap spring and the second wrap spring each engaged in series with a torsion spring, the torsion spring engaged with the outer housing, and the outer housing engaged with an alternator rotor.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: August 26, 2014
    Assignee: The Gates Corporation
    Inventors: Dean Schneider, Peter Ward, Alexander Serkh, Imitiz Ali, John Harvey
  • Publication number: 20140228158
    Abstract: A pulley assembly for an automobile auxiliary apparatus, such as an alternator, that dampens torsional impacts and reduces the stress on the auxiliary apparatus, the belt drive system and other apparatuses, by use of both wear-prone damping elements and a one-way overrunning clutch mechanism allowing for the free run of the pulley shaft.
    Type: Application
    Filed: February 8, 2013
    Publication date: August 14, 2014
    Applicant: MOTORCAR PARTS OF AMERICA, INC.
    Inventors: John G. AGNITCH, Nelson MEZA
  • Patent number: 8789648
    Abstract: Disclosed are a belt type driveline and a rack assist type electric power steering apparatus including the belt type driveline, which improve power transmission efficiency and increases durability by preventing spinning with no traction of a ball nut and a nut pulley due to a slip between the ball nut and the nut pulley in an operation of a belt by a motor, and provide a user with convenient steering by minimizing vibration and noise transferred through a rack bar, the ball nut, the nut pulley, etc., when the rack bar slides while the nut pulley and the ball nut rotate.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: July 29, 2014
    Assignee: Mando Corporation
    Inventor: Je Ho Lee
  • Patent number: 8789670
    Abstract: A decoupler having a hub, a drive member and an isolator. The drive member is disposed about the hub for rotation about a rotational axis and includes an inner clutch surface. The isolator couples the hub and the drive member and includes a carrier, a plurality of arcuate springs, and a wrap spring. The carrier is received between the hub and the drive member and includes a carrier member, which defines a pair of apertures, and a pair of reaction blocks that are mounted in the apertures. The arcuate springs are mounted in the carrier member and are disposed between the hub and an associated one of the reaction blocks. The wrap spring has an end and a plurality of helical coils that are engaged to the inner clutch surface of the drive member. The end has an end face that is abutted against one of the reaction blocks.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: July 29, 2014
    Assignee: Litens Automotive Partnership
    Inventors: John R. Antchak, James W. Dell, Harvey J. Dix, Scott Parsons
  • Patent number: 8764593
    Abstract: 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.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: July 1, 2014
    Assignee: Ketten-Wulf Betriebs-GmbH
    Inventor: Burkhard Grobbel
  • Patent number: 8740735
    Abstract: 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.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: June 3, 2014
    Assignee: Dayco Europe S.r.l.
    Inventors: Adriano Rolando, Hervé Riu
  • Patent number: 8715121
    Abstract: 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).
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: May 6, 2014
    Assignee: Conntechnical Industries, Inc.
    Inventors: Connard Cali, Carlos Ferreira
  • Patent number: 8678157
    Abstract: An isolating decoupler comprising a shaft, a pulley rotationally engaged with the shaft, a coil spring engaged between the pulley and a spring carrier, the spring carrier moveable relative to the shaft and pulley, a one-way clutch mounted to the shaft, a first torsion spring and a second torsion spring engaged between the spring carrier and the one-way clutch, the first torsion spring and the second torsion spring having a releasable frictional engagement with the one-way clutch, the first torsion spring and the second torsion spring comprising adjacent parallel strands and having substantially equal diameters, the first torsion spring and the second torsion spring each being engagable with the pulley, the first torsion spring releasing a frictional engagement with the one-way clutch upon an engagement with the pulley, and the second torsion spring releasing a frictional engagement with the one-way clutch upon an engagement with the pulley.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: March 25, 2014
    Assignee: Gates Corporation
    Inventors: Peter Ward, Alexander Serkh, Imtiaz Ali, Dean Schneider
  • Publication number: 20140073466
    Abstract: The invention concerns a pulley device (1) including a pulley (5), a torque transmission means (6) intended to be mounted between the pulley (5) and a transmission shaft (3) of a turning machine, and torque limitation means (16) intended to be mounted between the pulley (5) and the transmission shaft (3). The pulley device also includes at least one bearing (7) intended to be mounted on a non-rotating housing (2) of the turning machine and provided with an inner race (8) with a bore (8b), through which the inner race (8) is intended to be mounted on the housing (2), an outer race (9) and at least one row of rolling elements (10). According to the invention, the pulley device (1) provides axial retention means (17) arranged exclusively radially between the bore (8b) of the inner race (8) and the housing (2).
    Type: Application
    Filed: November 12, 2013
    Publication date: March 13, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Nicolas Berruet, Charles Chambonneau, Samuel Viault
  • Publication number: 20140066240
    Abstract: A polygon compensation coupling system for reducing a polygon effect in a chain driven system is disclosed. The polygon compensation coupling system may include a chain sprocket and a main drive in engagement with the chain sprocket, such that the engagement defines a compensation curve to reduce the polygon effect.
    Type: Application
    Filed: May 23, 2011
    Publication date: March 6, 2014
    Inventors: Walter Srb-Gaffron, Alexander Turek
  • Patent number: 8641563
    Abstract: 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.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: February 4, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Hartmut Mende, Jürgen Kroll
  • Patent number: 8632431
    Abstract: The invention relates to a drive wheel (1) of an auxiliary unit belt drive of an internal combustion engine, having a running casing (2) which is operatively connected to a traction mechanism, having a hub (3) which is rotationally fixedly connected to the drive axle of an auxiliary unit, and having a damping device (4), which is arranged so as to act between the running casing (2) and the hub (3), for reducing rotary oscillations, with the damping device (4) comprising a spring store (5) which is arranged so as to act between the running casing (2) and the hub (3). In order that the running casing can be produced more economically, the invention provides that the running casing (2) is composed of a running part (6), a driver part (7) and a spring receptacle (8), with the running part (6) being rotationally fixedly and permanently connected to the driver part (7), and wherein the driver part (7) can be or is connected in a form-fitting manner to the spring receptacle (8).
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: January 21, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Rainer Pflug, Steffen Lehmann, Christian Hauck, Christian Fechler, Dimitri Sieber
  • Publication number: 20130337953
    Abstract: Pulley device for a rotating machine comprising a pulley, a torque transmission means intended to be mounted on a rotating shaft of the rotating machine and a damping element arranged between the said pulley and the torque transmission means. The damping element is retained axially on the pulley by mechanical attachment means.
    Type: Application
    Filed: May 24, 2013
    Publication date: December 19, 2013
    Applicant: AKTIEBOLAGET SKF
    Inventors: Nicolas Berruet, Richard Corbett, Samuel Viault
  • Publication number: 20130337952
    Abstract: Pulley device for a rotating machine comprising a pulley containing a plurality of axial ribs, a torque transmission means containing an axial sleeve intended to be installed on a rotating shaft of the rotating machine and a radial plate extending radially from the axial sleeve and comprising a plurality of regularly distributed radial teeth extending towards the outside, two adjacent teeth being separated in the circumferential direction by an indentation, and a damping element arranged between the said pulley and the torque transmission means. The damping element includes at least one damping portion arranged in each of the indentations of the radial plate, being situated circumferentially between a radial tooth of the torque transmission means and an axial rib of the pulley.
    Type: Application
    Filed: May 24, 2013
    Publication date: December 19, 2013
    Applicant: AKTIEBOLAGET SKF
    Inventors: Nicolas Berruet, Richard Corbett, Samuel Viault
  • Patent number: 8602928
    Abstract: An isolator comprising a shaft (10), a pulley (20) journalled to the shaft on a first bushing (40) and a second bushing (50), a torsion spring (30) engaged with the shaft and the pulley, the torsion spring exerting an axial contractive force to retain the pulley on the shaft, a cover member (60) fixed to the shaft, the pulley urged into engagement with the cover member by the torsion spring axial contractive force, the cover member further comprising an axially projecting member (62) disposed radially outwardly of the torsion spring, the pulley comprising a circumferential pocket (24) for cooperatively receiving the projecting member and having a stop (23) disposed within the circumferential pocket, and a rubber member (80) disposed with the stop for engaging the projecting member.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: December 10, 2013
    Assignee: Gates Corporation
    Inventors: Alexander Serkh, Peter Ward, Imtiaz Ali, Dean Schneider
  • Publication number: 20130324335
    Abstract: An isolator decoupler comprising a shaft, a pulley journalled to the shaft, a clutch carrier journalled to the shaft through a one-way clutch, a torsion spring engaged between the pulley and the clutch carrier, the torsion spring loadable in an unwinding direction, the torsion spring and the pulley having a predetermined clearance between a torsion spring outside diameter surface and a pulley inside diameter surface, and whereby the torsion spring outside diameter surface and a pulley inside diameter surface come into a progressive frictional engagement by torque load dependent radial expansion of the torsion spring.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 5, 2013
    Inventors: Xiaohua Joe Chen, John T. Harvey, Rudy Pupulin, Keming Liu, Alexander Serkh, Imtiaz Ali, Dean Schneider, Peter Ward
  • Publication number: 20130284139
    Abstract: An engine assembly includes an engine structure, a crankshaft rotationally supported on the engine structure, a crankshaft isolator assembly and a belt. The crankshaft isolator assembly includes a hub fixed for rotation with the crankshaft, a crankshaft isolator pulley coupled to the hub, and a mechanical clutch. The mechanical clutch is engaged with the hub and the crankshaft isolator pulley. The mechanical clutch fixes the hub for rotation with the crankshaft isolator pulley during a first operating condition and allows relative rotation between the hub and the crankshaft isolator pulley during a second operating condition. The belt is engaged with the crankshaft isolator pulley and an accessory drive system.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 31, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Eric D. Staley
  • Patent number: 8534438
    Abstract: A decoupler with driven and driving members, a clutch, a torsional vibration damper and a lubricant. The clutch is received in a bore in the driven member and includes a carrier, a wrap spring and at least one spring. The wrap spring is formed of spring wire and has a plurality of coils disposed between a first end, which is received in a groove in the carrier, and a second end. The portion of the wrap spring outside the carrier has an outer circumferential spring surface that is abutted against the inner circumferential surface of the bore. The at least one spring is disposed between the carrier and the driving member to transmit rotary power from the driving member to the carrier. The torsional vibration damper is coupled to the driving member for rotation therewith. The lubricant is disposed on the remaining portion of the wrap spring.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: September 17, 2013
    Assignee: Litens Automotive Partnership
    Inventors: John R. Antchak, James W. Dell, Bert Mevissen, Christian Jansen
  • Publication number: 20130217524
    Abstract: In an aspect, the invention relates to a decoupler that is positionable between a shaft (eg. for an alternator) and an endless power transmitting element (eg. a belt) on an engine. The decoupler includes a hub that mounts to the shaft, and a pulley that engages the endless power transmitting element, an isolation spring between the hub and the shaft. The decoupler provides at least a selected damping torque between the hub and the pulley.
    Type: Application
    Filed: November 14, 2011
    Publication date: August 22, 2013
    Applicant: LITENS AUTOMOTIVE PARTNERSHIP
    Inventors: John R. Antchak, Jun Xu, Patrick Marion, Lucas Wilson, Justin Boudreau, Gary J. Spicer
  • Patent number: 8506434
    Abstract: An isolating decoupler comprising a hub, a one-way clutch engaged with the hub, a pulley rotationally engaged with the hub, a spring operationally engaged between the one-way clutch and the pulley, and an inertia member engaged with the hub through an elastomeric member, the inertia member substantially disposed within a width of the pulley, the inertia member moveable independently of the pulley.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: August 13, 2013
    Assignee: The Gates Corporation
    Inventor: John Harvey
  • Publication number: 20130150191
    Abstract: A drive pulley structure has a cylindrical pulley member, a hub structure that is provided inside the pulley member so as to rotate relative to the pulley member, a coil spring that is fixed to the hub structure, a tapering which has a conical round surface as of a cone whose axis is made up of a rotational axis J of the hub structure, and a frictional member that is inserted to be interposed between the conical round surface of the tapering and the pulley member, and the coil spring is inserted to be interposed in place while being compressed in the direction of the rotational axis of the hub structure, the tapering, the frictional member and the pulley member being brought into press contact with each other by virtue of a restoring force P of the coil spring.
    Type: Application
    Filed: August 30, 2011
    Publication date: June 13, 2013
    Applicant: MITSUBOSHI BELTING LTD.
    Inventor: Tomokazu Ishida
  • Patent number: 8434210
    Abstract: The invention relates to a device for assembling, by screwing, a drive member, such as a drive pulley, with a shaft intended to be coupled to the rotor of a rotating electrical machine, the device including an additional, welded connection. According to the invention, this method of producing the assembly device is characterized in that the drive member screwed onto its shaft in the vertical position is welded from below. The invention can be used for rotating electrical machines, such as an alternator or a starter-alternator of a motor vehicle.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: May 7, 2013
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Alexandre Pfleger, Karine Stofleth, Dirk Schulte, Romaric Lenoir, Yves Ducrocq
  • Publication number: 20130095964
    Abstract: A torsional vibration damper which comprises of a hub 12 having a central hole 3 to be inserted on the crankshaft and being formed to have a recess opened on one side, a disc 4 extending from the hub 2, a rim 5 being bent and extending from the periphery of the disc 4, a rubber layer 6 attached on the outer surface of the rim 5, and a ring member 8 or pulley inserted on the outer surface of the rubber layer 6, wherein a polygonal recess 10 is formed on the connecting area between the hub 2 and the disc 4 so that the polygonal recess 10 surrounds the hub 2.
    Type: Application
    Filed: January 9, 2012
    Publication date: April 18, 2013
    Applicant: FUKOKU KOREA CO., LTD.
    Inventor: Seung-Woo SHIN
  • Patent number: 8419574
    Abstract: An isolator comprising a shaft (10), a pulley (20) journalled to the shaft on a first bushing (40) and a second bushing (50), the shaft comprising a shaft stop (12) disposed on a shaft radially outer surface (14), the pulley and the shaft rotationally moveable relative to each other, the pulley comprising an inner hub (23), the inner hub having a pulley stop (24) disposed to cooperatively engage the shaft stop, a torsion spring (30) engaged with the shaft and the pulley, the torsion spring exerting a contractive force parallel to an axis of rotation (A-A) in order to retain the pulley on the shaft, a cover member (60) fixed to the shaft, the pulley urged into engagement with the cover member by the torsion spring axial contractive force, and a rubber member (80) disposed on the shaft stop for engaging the pulley stop.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: April 16, 2013
    Assignee: The Gates Corporation
    Inventors: Alexander Serkh, Peter Ward, Imtiaz Ali, Dean Schneider
  • Patent number: 8403780
    Abstract: A tensioner comprising a base comprising a first portion, an arm comprising a second portion, the arm pivotally connected to the base, a pulley journalled to the arm, a resilient member compressively disposed between the first portion and the second portion, the resilient member comprising a gap within which the first portion and the second portion are disposed, and the resilient member comprising a bore, the bore engaging the arm.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: March 26, 2013
    Assignee: The Gates Corporation
    Inventors: Oliver Stegelmann, Xinjian Fan