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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2024. Отображено 100.

19-01-2012 дата публикации

Method of Producing a Composite Body

Номер: US20120011698A1

Автор: Matthias Derse

Принадлежит: Neumayer Tekfor Holding GmbH

A method of producing a composite body, such as a gear wheel or torsional vibration damper, including a radially inner hub body provided with outer profiles, a surrounding outer body provided with inner profiles, and an intermediate layer of synthetic resin material which connects the outer profiles of the hub body with the inner profiles of the outer body; the hub body being with an inner contour adapted to mount the composite body on a shaft.

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Номер записи: 1

29-11-2012 дата публикации

Isolator Decoupler

Номер: US20120298474A1

Автор: Alexander Serkh, Dean Schneider, Imtiaz Ali, Peter Ward

Принадлежит: Gates Corp

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.

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Номер записи: 2

31-01-2013 дата публикации

Assembly of combustion engine and planetary gear train connected to the combustion engine

Номер: US20130029800A1

Автор: Stefan Langbein

Принадлежит: Audi AG

A combustion engine having at least one combustion chamber and a crankshaft is combined with a planetary gear train having a ring gear, a sun gear, and a plurality of planetary gears rotatably mounted on a planet carrier and interacting with the ring gear and the sun gear. In order to dampen or absorb vibrations of the crankshaft of the combustion engine, a vibration damper unit is provided to keep the vibrations away from the planetary gear train. The vibration damper unit includes a support member which is attached to the crankshaft at a location which is in closer proximity of the combustion chambers of the combustion engine than a connection member by which the crankshaft is coupled to the planetary gear train.

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Номер записи: 3

31-01-2013 дата публикации

Assembly with a planetary gear train for a motor vehicle, a motor vehicle and a method for operating a planetary gear train

Номер: US20130029804A1

Автор: Andreas Misala

Принадлежит: Audi AG

In an assembly with a planetary gear train, which includes the elements sun gear, planet carrier with planetary gears and ring gear, two elements, in particular the sun gear and the planet carrier, are coupled with each other via an overrunning clutch. A clutch bridges the overrunning clutch. Bridging is discontinuous and controlled by a control device based on the relative rotation of the two elements to be coupled. For example, one rotation speed sensor can measure the rotation speed of an electric machine, whereas another rotation speed sensor can measure the rotation speed of a crankshaft of an combustion engine. In a motor vehicle, the combustion engine can be coupled with an electric machine, using different gear ratios during startup or boosting and in generator operation. In addition, the electric machine can drive an air-conditioning compressor when the combustion engine is not running.

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Номер записи: 4

11-04-2013 дата публикации

Isolation pulley with overrunning and vibration damping capabilities

Номер: US20130087428A1

Автор: James W. Dell, John R. Antchak, Warren Williams

Принадлежит: LITENS AUTOMOTIVE PARTNERSHIP

A decoupler having an input hub, an output member, a one-way clutch, and at least one isolation spring. Rotary power is transmitted in a predetermined rotational direction from the input hub, through the one-way clutch, through the isolation spring and to the output member. A method for forming a decoupler is also provided.

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Номер записи: 5

25-04-2013 дата публикации

Overrunning decoupler

Номер: US20130098727A1

Автор: John R. Antchak, Warren Williams

Принадлежит: LITENS AUTOMOTIVE PARTNERSHIP

A decoupler having an input member, an output member and a combination one-way clutch and torsional isolator that couples the input and output members. The combination one-way clutch and torsional isolator includes a single helical coil spring. The decoupler being designed to provide torsional damping through a range of torque transmitted through the decoupler, the range including a maximum rated torque for the decoupler.

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Номер записи: 6

13-06-2013 дата публикации

Pulley structure

Номер: US20130150191A1

Автор: Tomokazu Ishida

Принадлежит: Mitsuboshi Belting Ltd

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.

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Номер записи: 7

29-08-2013 дата публикации

Pulley device with a damping element

Номер: US20130225344A1

Автор: Benoit Arnault, Michel Bonnet, Nicolas Berruet, Richard Corbett, Samuel Viault

Принадлежит: SKF AB

Pulley device for a rotary machine, and in particular a compressor, comprising a pulley, a rolling bearing, a torque transmission plate having an axial sleeve designed to be mounted on a rotary spindle of the rotary machine and a radial plate extending radially from the axial sleeve and having the general shape of a disc, said pulley being mounted on an outer ring of the rolling bearing and on the torque transmission plate, the torque transmission plate being able to transmit a rotational movement from the pulley to the rotary spindle. Said pulley device comprises a damping element located between the pulley and the torque transmission plate.

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Номер записи: 8

12-09-2013 дата публикации

Low-noise belt drive

Номер: US20130237355A1

Автор: Thomas Lubojatzky

Принадлежит: ThyssenKrupp Presta AG

The invention relates to electromechanical power-assisted steering for motor vehicles, having a steering gear in which a belt drive is provided for power transmission between a servomotor and a gear transmission and which comprises a toothed belt and two belt pulleys coupled by means of the toothed belt, wherein the toothed belt, transversely to its running direction, has a concave internal contour, viewed from the belt pulley, and in that corresponding belt pulleys are provided transversely to the direction of rotation with a corresponding convex external contour.

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Номер записи: 9

05-01-2017 дата публикации

SELF-CENTERING BELT-ROLLER ARRANGEMENT AND BELT GUIDING METHOD

Номер: US20170000037A1

Автор: REIJERSEN VAN BUUREN Willem Jacobus

Принадлежит: FORAGE INNOVATIONS B.V.

A belt-roller arrangement with a deflecting roller and an endless flexible belt and a method for guiding such a belt over such a roller are disclosed. The roller body of the roller includes two deformable roller body segments and a rigid roller body segment part which is—in an axial direction—positioned between these two deformable segments. The belt is entirely guided over the central rigid segment part and at least partially over both deformable segments. The belt run is automatically corrected. 1. A belt-roller arrangement comprising:at least one deflecting roller with a round-cylindrical roller body comprising a circumferential surface; andat least one endless flexible belt guided under tension over the circumferential surface, at least one rigid roller body segment; and', 'at least one deformable roller body segment,, 'wherein the roller body compriseswherein the or every rigid roller body segment has a higher stiffness than the or every deformable roller body segment,wherein the or every belt of the arrangement is guided around the or at least one rigid roller body segment and is guided around the or at least one deformable roller body segment,wherein the roller body comprises at least two deformable roller body segments,wherein the or at least one rigid roller body segment comprises a central roller body segment part positioned in an axial direction between both or between two adjacent deformable roller body segments, andwherein the or every belt is entirely guided over the or over at least one central roller body segment part and is partially guided over both or over two adjacent deformable roller body segments.2. The belt-roller arrangement according to claim 1 , wherein the round-cylindrical roller body comprises a supporting structure with at least one rigid rib and the or at least one deformable roller body segment comprises a deformable part made from at least one deformable material claim 1 , andwherein the or every supporting rib is guided through the ...

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Номер записи: 10

07-01-2016 дата публикации

NOISE, VIBRATION, AND HARMONICS REDUCING SPROCKET TECHNOLOGY

Номер: US20160003340A1

Автор: CRUMP Matthew W., SARICK John

Принадлежит:

A number of variations may include a sprocket using one or more slot(s) and/or compressive or elastic material in order to lower the NVH. A number of variations may include a sprocket which isolates the vibrations created by the impact of the chain with the sprocket so that the vibrations are prevented from traveling into the shaft. 1. A product comprising:a sprocket having a plurality of teeth formed along the perimeter of a sprocket body;the plurality of teeth separated by a plurality of roots along the perimeter of the sprocket body;the sprocket body having a bore formed in the center thereof;a radial slot formed there through.2. The product of further comprising a compressive or elastic material inserted into the radial slot.3. The product of further comprising a first and second hub attached to the sprocket.4. The product of further comprising a first and second cushion ring attached to the sprocket body.5. A product comprising:a sprocket having a plurality of teeth formed along the perimeter of a sprocket body;the plurality of teeth separated by a plurality of roots along the perimeter of the sprocket body;the sprocket body having a bore formed in the center thereof;a first isolation disk and a second isolation disk attached to the sprocket body;a first hub and a second hub connected to the sprocket body.6. The product of wherein the sprocket is attached to the first and second isolation disk and the first and second hub with a mechanical fastener.7. The product of wherein the mechanical fastener is surrounded by an isolation ring.8. The product of wherein the first and second isolation disks incorporate a cushion ring.9. The product of wherein the bore diameter is larger than the first and second hub diameters.10. A product comprising:a sprocket having a plurality of teeth formed along the perimeter of the sprocket body;the plurality of teeth separated by a plurality of roots along the perimeter of the sprocket body;the sprocket body having a bore formed in ...

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Номер записи: 11

07-01-2016 дата публикации

TORSIONAL VIBRATION DAMPER WITH AN INTERLOCKED ISOLATOR

Номер: US20160003342A1

Автор: Manzoor Suhale

Принадлежит: DAYCO IP HOLDINGS, LLC

A crankshaft damper-isolator that includes a hub having an outer radial surface and an outermost radial surface spaced radially outward from the outer radial surface and thereby defining an annular receptacle therebetween, a pulley body having a belt engaging portion radially-concentric about the hub and a face guard that terminates in a central bore seated about the outer radial surface of the hub, a damper assembly disposed between the outermost radial surface of the hub and belt engaging portion of the pulley body, a back plate fastened to the hub, a first elastomeric isolator member encapsulated and interlocked in compression between the annular receptacle of the hub and a front face of the face guard of the pulley body, and a second elastomeric isolator member encapsulated and interlocked in compression between the back plate and a back face of the face guard of the pulley body. 1. A crankshaft damper-isolator comprising:a hub having an outer radial surface and an outermost radial surface spaced radially outward from the outer radial surface and thereby defining an annular receptacle therebetween;a pulley body having a belt engaging portion radially-concentric about the hub and, extending radially inward from the belt engaging portion, a face guard that terminates in a central bore seated about the outer radial surface of the hub;a damper assembly disposed between the outermost radial surface of the hub and belt engaging portion of the pulley body;a back plate fastened to the hub;a first elastomeric isolator member encapsulated and interlocked between the annular receptacle of the hub and a front face of the face guard of the pulley body and compressed therebetween; anda second elastomeric isolator member encapsulated and interlocked between the back plate and a back face of the face guard of the pulley body and compressed therebetween.2. The crankshaft damper-isolator of claim 1 , wherein the damper assembly comprises:an elastomeric damper member disposed in ...

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Номер записи: 12

02-01-2020 дата публикации

SPROCKET WITH VIBRATION ABSORPTION PROPERTIES

Номер: US20200003292A1

Автор: CRUMP Matthew W.

Принадлежит:

Provided is a sprocket having a body formed by a powder metallurgy process with a predetermined density and vibration energy absorbing properties, and teeth with a greater density than the density of the body, and a method of making the same. The sprocket minimizes mechanical vibration during a chain-to-sprocket tooth contact. The teeth of the sprocket have a higher density than the body of the sprocket. 1. A method of forming a sprocket , the method comprising the steps of:compressing metal powder into a predetermined density solid to form a circular body; andimpregnating a vibration energy absorption material into pores of the circular body.2. The method of claim 1 , wherein the circular body is formed with teeth surrounding an outer circumference thereof during the compressing step.3. The method of claim 2 , further comprising:applying a pressure along the teeth to increase the density of the teeth prior to impregnating the circular body.4. The method of claim 3 , wherein the density of the teeth is increased by a process of rolling the teeth along at least one die.5. The method of claim 1 , wherein the vibration energy absorption material is an oil or a resin.6. The method of claim 5 , wherein the impregnating process is performed by applying a vacuum to a vat including the vibration energy absorption material until air within the pores is replaced with the vibration energy absorption material.7. The method of claim 1 , further comprising:forming a ring of metal teeth having a density higher than the density of the circular body; andfixing an inner surface of the ring of metal teeth to an outer circumference of the circular body.8. The method of claim 7 , wherein the ring of metal teeth and the circular body are fixed together by a splining process.9. The method of claim 7 , wherein the ring of metal teeth and the circular body are fixed together by press-fitting process.10. The method of claim 7 , wherein the ring of metal teeth is formed of steel.11. A ...

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Номер записи: 13

07-01-2021 дата публикации

STRUCTURE AND METHOD FOR BELT INSTALLATION OF AN ENGINE FOR A VEHICLE

Номер: US20210003197A1

Автор: Baek Hyun Jeong, Kim Sung Kwang, Roh Tae Hoon

Принадлежит:

A structure for belt installation of an engine for a vehicle is provided. The structure includes a damper pulley that is mounted to a crankshaft of the engine and a stretch belt that has a first end mounted on the damper pulley and a second end connected to an upper portion of a pulley portion of an accessory. The accessory is mounted on the engine at a position spaced apart from the damper pulley. The pulley portion includes a guide member on a front center thereof which guides installation of the stretch belt to the pulley portion. 1. A structure for belt installation of an engine for a vehicle , comprising:a damper pulley mounted to a crankshaft of the engine;a stretch belt having a first end mounted on the damper pulley; andan accessory mounted on the engine at a position spaced apart from the damper pulley,wherein the accessory includes a pulley portion having a guide member on a front center thereof, andwherein the guide member guides installation of the stretch belt to the pulley portion.2. The structure of claim 1 , wherein the guide member has a same rotation center as the accessory.3. The structure of claim 1 , wherein the guide member includes:a protrusion part that protrudes in a circular ring shape at the front center of the accessory; anda flange part integrally formed with and extending outward along a rear outer circumference of the protrusion part, and contacting the accessory.4. The structure of claim 3 , wherein the protrusion part has a protrusion width that extends from the front center of the accessory and that is greater than 0.5 times and less than a width of the stretch belt.5. The structure of claim 3 , wherein an outer diameter of the protrusion part is between about 0.6 times and 0.7 times of a diameter of the pulley portion of the accessory.6. The structure of claim 3 , wherein the guide member includes a plurality of bolt fastening bores formed along a circumference of the flange part and radially protruding from an outer circumference ...

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Номер записи: 14

14-01-2016 дата публикации

SPROCKET FLANGE

Номер: US20160010730A1

Автор: Ziliak Mark Alan

Принадлежит:

A synchronous belt sprocket includes a generally circular body including a circumferential belt engagement surface, a plurality of teeth extending radially outwardly from the circumferential belt engagement surface, and at least one flange coupled to the body. The at least one flange has a first end adjacent the body, a second end generally opposite the first end and radially outward from the first end, a surface extending between the first and second ends and facing the circumferential belt engagement surface, and a length defined between the first and second ends. At least half the length of the surface of at least one flange facing the circumferential belt engagement surface is obtusely angled relative to the circumferential belt engagement surface. 1. A synchronous belt sprocket , comprising:a generally circular body including a circumferential belt engagement surface;a plurality of teeth extending radially outwardly from the circumferential belt engagement surface; andat least one flange coupled to the body, the at least one flange having a first end adjacent the body, a second end generally opposite the first end and radially outward from the first end, a surface extending between the first and second ends and facing the circumferential belt engagement surface, and a length defined between the first and second ends, and at least half the length of the surface of at least one flange facing the circumferential belt engagement surface is obtusely angled relative to the circumferential belt engagement surface.2. The synchronous belt sprocket of claim 1 , wherein a first end portion and a second end portion of the surface at least one flange facing the circumferential belt engagement surface are obtusely angled relative to the circumferential belt engagement surface.3. The synchronous belt sprocket of claim 1 , wherein the surface of the at least one flange facing the circumferential belt engagement surface extends at a constant obtuse angle from the ...

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Номер записи: 15

14-01-2016 дата публикации

Pulley for Alternator

Номер: US20160010743A1

Автор: Hung-Chih Chang, Szu-En Liu

Принадлежит: Victory Industrial Corp

The present invention relates to a pulley for an alternator, and in particular, to a pulley applicable to an automotive alternator. The pulley effectively mitigates the problem that a belt and a tension pulley of an alternator vibrate because a rotation speed of a vehicle engine changes, thereby improving the overall operating efficiency of the alternator and the service life of the working belt and the tension pulley.

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Номер записи: 16

10-01-2019 дата публикации

DECOUPLER AS ONE-WAY CLUTCH

Номер: US20190010995A1

Автор: CHOI Kum Lim, Kim Uk Han, LEE Keunseok, Shon Chiwon

Принадлежит:

A decoupler is provided that includes a pulley around which a belt is wound. A sprag limiter is fixed to an interior circumference of the pulley and has protrusions formed at predetermined intervals in a circumferential direction on an interior circumference thereof. A sprag hub is disposed in the sprag limiter and has first apertures formed at predetermined intervals from an interior circumference to an exterior circumference thereof. A shaft hub is disposed in the sprag hub and has second apertures that are formed to correspond to the first apertures from an interior circumference to an exterior circumference thereof. Sprags having lower end portions are each inserted into the second apertures, central portions are each inserted into the first apertures, and upper end portions are in contact with the interior circumference of the sprag limiter, and allow the shaft hub to rotate in one direction based on the pulley movement. 1. A decoupler , comprising:a pulley around which a belt is wound;a sprag limiter fixed to an interior circumference of the pulley and having protrusions formed at predetermined intervals in a circumferential direction on an interior circumference thereof;a sprag hub disposed in the sprag limiter and having first apertures formed at predetermined intervals in the circumferential direction from an interior circumference thereof to an exterior circumference thereof;a shaft hub disposed in the sprag hub and having second apertures formed at positions each corresponding to the first apertures from an interior circumference thereof to an exterior circumference thereof; anda plurality of sprags having lower end portions each inserted into the second apertures, central portions each inserted into the first apertures, and upper end portions formed to be in contact with the interior circumference of the sprag limiter, and allowing the shaft hub to rotate in one direction based on movement of the pulley.2. The decoupler of claim 1 , further comprising:a ...

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Номер записи: 17

03-02-2022 дата публикации

HIGH FRICTION AND WEAR RESISTANT ELEVATOR SHEAVE LINER

Номер: US20220033228A1

Автор: Chang Xiaoyuan, Yang Hong

Принадлежит:

An illustrative example embodiment of an elevator sheave liner includes a liner body having an inner surface configured to be received against a sheave and an outer surface configured to engage an elevator tension member. The liner body comprises a polymer material and a plurality of wear resistance particles in the composite material. The wear resistance particles are nanoparticles or microparticles. At least some of the wear resistance particles establish a traction characteristic of the outer surface of the sheave liner. 1. An elevator sheave liner , comprising a liner body including an inner surface configured to be received against a sheave and an outer surface configured to engage an elevator tension member , the liner body comprising a composite material and a plurality of wear resistance particles in the composite material , the wear resistance particles are nanoparticles or microparticles , at least some of the wear resistance particles establishing a traction characteristic of the outer surface.2. The elevator sheave liner of claim 1 , whereinat least some of the wear resistance particles are microparticles andthe size of the microparticles is between about 1 μm and about 20 μm.3. The elevator sheave liner of claim 1 , whereinat least some of the wear resistance particles are nanoparticles andthe size of the nanoparticles is between about 10 nm and about 1000 nm.4. The elevator sheave liner of claim 1 , wherein the wear resistance particles are uniformly dispersed throughout the composite material of the liner body.5. The elevator sheave liner of claim 1 , wherein the liner body comprises between 0.1% and 20% by weight wear resistance particles.6. The elevator sheave liner of claim 1 , wherein the wear resistance particles have a hardness of at least 5 on the Moh's hardness scale.7. The elevator sheave liner of claim 6 , wherein the wear resistance particles comprise silicon carbide (SiC) claim 6 , Silicon Nitride (SiN) or diamond.8. The elevator sheave ...

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Номер записи: 18

17-04-2014 дата публикации

Synchronous Belt Sprocket and System

Номер: US20140106917A1

Автор: Arthur Clarke, JING Yuan, Robert David PARNELL

Принадлежит: Gates Corp

A sprocket system comprising a first sprocket ( 100 ) comprising a plurality of transverse first teeth ( 101 ) extending parallel to an axis of rotation (A-A) and having a first pitch (P 1 ), the first sprocket further comprising a plurality of transverse second teeth ( 102 ) having a second pitch (P 2 ) and disposed immediately adjacent the first teeth, the second teeth parallel to the first teeth, a tooth of said first teeth aligned with a radius (A) of said first sprocket, a tooth of said second teeth offset a distance (x) from said radius (A), wherein (x) is greater than zero, a second sprocket ( 200 ), and a toothed belt ( 300 ) entrained between the first sprocket and the second sprocket.

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Номер записи: 19

22-01-2015 дата публикации

Noise damping arrangement for a combustion engine component assembly

Номер: US20150024885A1

Автор: Alexander Rose, Andreas Stuffer, Christer Odenmarck, Christian Fechler, Christopher Culley, Dimitri Sieber, Hayder Al-Kattan

Принадлежит: Volvo Car Corp

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.

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Номер записи: 20

26-01-2017 дата публикации

CONTINUOUSLY VARIABLE TRANSMISSION DRIVE PULLEY

Номер: US20170023121A1

Автор: Aitcin Xavier-Pierre, BOURGEOIS Yan

Принадлежит:

A drive pulley for a CVT has a fixed sheave, a movable sheave, a spider, a biasing member biasing the movable sheave axially away from the fixed sheave, at least one centrifugal actuator and first and second rollers rotationally connected to one of the movable sheave and the spider. The first roller rolls along the other one of the movable sheave and the spider as the movable sheave moves axially. The second roller rolls along the other one of the movable sheave and the spider as the movable sheave moves axially. The first and second rollers transfer torque between the movable sheave and the spider. 1. A drive pulley for a continuously variable transmission comprising:a fixed sheave having an axis of rotation;a movable sheave axially movable relative to the fixed sheave;a spider axially fixed relative to the fixed sheave and rotationally fixed relative to the movable sheave, the movable sheave being disposed axially between the spider and the fixed sheave;a biasing member biasing the movable sheave axially away from the fixed sheave;at least one centrifugal actuator including an arm pivotally connected to one of the movable sheave and the spider, the arm pivoting away from the one of the movable sheave and the spider as a speed of rotation of the drive pulley increases, the arm pushing against another one of the movable sheave and the spider as the arm pivots away from the one of the movable sheave and the spider, thereby moving the movable sheave axially toward the fixed sheave;a first roller rotationally connected to one of the movable sheave and the spider and abutting another one of the movable sheave and the spider to transfer a first torque to the other one of the movable sheave and the spider in a first direction; anda second roller rotationally connected to the one of the movable sheave and the spider and abutting the other one of the movable sheave and the spider to transfer a second torque to the other one of the movable sheave and the spider in a second ...

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Номер записи: 21

23-01-2020 дата публикации

Isolating Decoupler

Номер: US20200025260A1

Автор: Alexander Serkh, Anthony R. MORA, Essie Rahdar

Принадлежит: Gates Corp

An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one-way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded to the one-way clutch and having another end welded to the pulley.

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Номер записи: 22

23-01-2020 дата публикации

Pulley Structure and Method for Manufacturing Pulley Structure

Номер: US20200025283A1

Автор: Dan Ryosuke, Imai Katsuya, Morimoto Takashi, Shimamura Hayato

Принадлежит: MITSUBOSHI BELTING LTD.

The present invention provides a pulley structure () provided with: a tubular outer rotating body () having a belt (B) looped thereon; an inner rotating body () which is disposed radially inside the outer rotating body () and which is rotatable relative to the outer rotating body (); and a torsional coil spring () which is arranged in a spring accommodating space () formed between the outer rotating body () and the inner rotating body (). At least in a state in which the pulley structure () has not been operated even once, a grease () containing an antirust agent is applied to an opposing surface () of the inner rotating body opposing an inner peripheral surface () of the torsional coil spring (). 1. A pulley structure to be connected to an accessory machine of an engine and to which power of the engine is to be transmitted via a belt , the pulley structure comprising:a cylindrical outer rotating body around which the belt is to be wound;an inner rotating body provided radially inward on the outer rotating body and relatively rotatable with respect to the outer rotating body; anda torsion coil spring disposed in a spring accommodation space formed between the outer rotating body and the inner rotating body,wherein at least in a state where the pulley structure is not yet operated once, a grease containing a rust inhibitor is applied to a facing surface of the inner rotating body, facing an inner circumferential surface of the torsion coil spring.2. The pulley structure according to claim 1 ,wherein the grease has a thickness of 2 mm or less on the facing surface.3. The pulley structure according to claim 1 ,wherein the grease has an adhering area to the facing surface being 4% or more of the area of the facing surface.4. The pulley structure according to claim 1 ,wherein the grease is applied on the facing surface along a rotation axis direction of the inner rotating body.5. The pulley structure according to claim 1 ,wherein the grease is applied only to the facing ...

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Номер записи: 23

02-02-2017 дата публикации

DRIVING FORCE TRANSMISSION SYSTEM FOR ENGINE

Номер: US20170030452A1

Автор: Yamauchi Michihiro

Принадлежит: MAZDA MOTOR CORPORATION

A driving force transmission system for an engine is provided with a crank sprocket mounted on a crankshaft, cam sprockets mounted on camshafts, an intermediate shaft disposed between the crankshaft and the camshafts, a dual sprocket mounted on the intermediate shaft, and including a first sprocket and a second sprocket facing each other in a state that the first and second sprockets are rotatable relative to each other, a first endless transmission member wound around the crank sprocket and the first sprocket, and a second endless transmission member wound around the cam sprocket and the second sprocket. The dual sprocket includes a damping portion for connecting the first and second sprockets. The damping portion is configured to exert a resilient force in a rotational direction of the first and second sprockets. 1. A driving force transmission system for an engine , configured to transmit a driving force of a crankshaft constituting the engine to a camshaft by an endless transmission member , the driving force transmission system comprising:a crank sprocket mounted on the crankshaft;a cam sprocket mounted on the camshaft;an intermediate shaft disposed between the crankshaft and the camshaft;a dual sprocket mounted on the intermediate shaft, and including a first sprocket and a second sprocket facing each other in a state that the first sprocket and the second sprocket are rotatable relative to each other;a first endless transmission member wound around the crank sprocket and the first sprocket; anda second endless transmission member wound around the cam sprocket and the second sprocket, whereinthe dual sprocket includes a damping portion for connecting the first sprocket and the second sprocket, the damping portion being configured to exert a resilient force in a rotational direction of the first sprocket and the second sprocket.2. The driving force transmission system for an engine according to claim 1 , wherein the damping portion includes a spring.3. The ...

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Номер записи: 24

02-02-2017 дата публикации

ROLLER CHAIN SPROCKET WITH RESILIENT CUSHION RINGS HAVING IMPROVED DURABILITY AND NOISE CHARACTERISTICS

Номер: US20170030453A1

Автор: Young James D.

Принадлежит: Cloyes Gear and Products, Inc.

A roller chain sprocket includes a body with a hub and a row of teeth that extends circumferentially around the hub such that the hub extends axially outward on opposite first and second sides of the row of teeth. The teeth are separated from each other by tooth spaces, wherein each of said tooth spaces is bisected by a radial tooth space centerline. First and second elastomeric cushion rings are respectively bonded to the hub on the opposite first and second sides of the row of teeth, with cushion ring extending circumferentially about the hub and including a plurality of compression pads separated from each other by axially extending transverse grooves. Each of the compression pads includes a planar or otherwise flat outer surface that is connected to a respective preceding one of the grooves by a leading corner surface and connected to a respective trailing one of the grooves by a trailing corner surface. Each of the grooves is located radially inward from a respective associated one of the tooth spaces such that the tooth space centerline is circumferentially aligned with the trailing corner surface that connects the groove to a preceding one of the compression pads. The compression pads provide both primary compression for a meshing chain link row and secondary compression for the next-meshing, upstream chain link row. 1. A roller chain sprocket comprising:a body comprising a hub;a row of teeth that extends circumferentially around the hub such that the hub extends axially outward on opposite first and second sides of the row of teeth, said teeth separated from each other by tooth spaces, wherein each of said tooth spaces is bisected by a radial tooth space centerline;first and second elastomeric cushion rings respectively bonded to the hub on said opposite first and second sides of the row of teeth, each cushion ring extending circumferentially about said hub and comprising a plurality of compression pads separated from each other by axially extending ...

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Номер записи: 25

02-02-2017 дата публикации

CONTINUOUSLY VARIABLE TRANSMISSION DRIVE PULLEY

Номер: US20170030454A1

Автор: Aitcin Xavier-Pierre, BOURGEOIS Yan

Принадлежит:

A drive pulley for a CVT has a fixed sheave, a fixed sheave shaft fixedly connected to the fixed sheave, a movable sheave, a movable sheave shaft fixedly connected to the movable sheave, a spider and at least one centrifugal actuator. The fixed sheave shaft is disposed at least in part inside the movable sheave shaft. The movable sheave is disposed axially between the spider and the fixed sheave. A biasing member biases the movable sheave axially away from the fixed sheave. A torque transfer assembly is operatively connected to at least one of the fixed sheave and the movable sheave. The torque transfer assembly transfers torque between the fixed sheave and the movable sheave. The biasing member, the at least one centrifugal actuator and the torque transfer assembly are disposed radially outward of the fixed and movable sheave shafts. 1. A drive pulley for a continuously variable transmission comprising:a fixed sheave;a fixed sheave shaft fixedly connected to the fixed sheave,a movable sheave axially movable relative to the fixed sheave;a movable sheave shaft fixedly connected to the movable sheave, the fixed sheave shaft being disposed at least in part inside the movable sheave shaft;a spider axially fixed relative to the fixed sheave and rotationally fixed relative to the movable sheave, the movable sheave being disposed axially between the spider and the fixed sheave;a biasing member biasing the movable sheave axially away from the fixed sheave, the biasing member being disposed radially outward of the fixed and movable sheave shafts;at least one centrifugal actuator including an arm pivotally connected to one of the movable sheave and the spider, the arm pivoting away from the one of the movable sheave and the spider as a speed of rotation of the drive pulley increases, the arm pushing against another one of the movable sheave and the spider as the arm pivots away from the one of the movable sheave and the spider, thereby moving the movable sheave axially toward ...

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Номер записи: 26

01-02-2018 дата публикации

PULLEY DECOUPLER

Номер: US20180031057A1

Автор: ARNETH Roland, KASTNER Michael

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A belt pulley decoupler includes a belt pulley, a hub to be fixed on the shaft, and a series connection made up of a decoupler spring and a wrap-around band arranged in the drive torque flow between the belt pulley and the hub. The wrap-around band extends about direction of the axis of rotation of the belt pulley decoupler and is arranged radially between the belt pulley and the decoupler spring. Under transmission of the drive torque, both ends of the wrap-around band widen radially, with one end of the wrap-around band being braced against the inner surface of a first sleeve that is rotationally fixed in the belt pulley, and another end being braced against the inner surface of a second sleeve that is rotatable within the belt pulley. 1. A belt pulley decoupler for transmitting a drive torque from a belt of an auxiliary unit belt drive to a shaft of an auxiliary unit , the belt pulley decoupler comprising:a belt pulley;a hub configured to be fixed on the shaft;a decoupler spring and a wrap-around band arranged in series along a drive torque flow path between the belt pulley and the hub, the wrap-around band extending about an axis of rotation of the belt pulley decoupler and arranged radially between the belt pulley and the decoupler spring;a first sleeve rotationally fixed relative to the belt pulley and having an inner peripheral surface; anda second sleeve rotatable within the belt pulley and having an inner peripheral surface;wherein, under transmission of the drive torque, the wrap-around band widens radially,wherein the wrap-around band includes a first end that extends on a belt pulley-side in the drive torque flow path and is braced against the inner peripheral surface of the first sleeve and a second end that extends on a decoupler spring-side in the drive torque flow path and is braced against the inner peripheral surface of the second sleeve.2. The belt pulley decoupler according to claim 1 , wherein the wrap-around band is curved entirely from the ...

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Номер записи: 27

31-01-2019 дата публикации

DAMPER PULLEY

Номер: US20190032766A1

Автор: Hanson Jeffery L.

Принадлежит:

A damper pulley assembly for a vehicle engine is provided wherein the damper pulley assembly includes a hub, a pulley and a hybrid shield affixed to the hub. The hub may be affixed to the crankshaft. The hub includes a pulley contact surface. The pulley may be mounted on the hub at the pulley contact surface of the hub. The hybrid shield may be affixed to the hub. The hybrid shield may be configured to attenuate an axial flow of noise and vibration from the crank shaft when the crankshaft, the hub, and the pulley are rotating. 1. A damper pulley for a vehicle engine , the damper pulley assembly comprising:a hub affixed to a crankshaft, the hub cover having a pulley contact surface;a pulley mounted on the hub at the pulley contact surface; anda hybrid shield affixed to the hub, the hybrid shield being configured to attenuate an axial flow of noise and vibration from the crank shaft when the crankshaft, the hub, and the pulley are rotating.2. The damper pulley assembly as defined in wherein the hybrid shield is a multi-layered component.3. The damper pulley assembly as defined in wherein the hybrid shield includes a cover and an insulating layer.4. The damper pulley assembly as defined in wherein the insulating layer is configured to break up an axial flow of noise and vibration from the crankshaft.5. The damper pulley assembly as defined in wherein the cover is configured to deflect and dissipate the axial flow of noise and vibration from the crankshaft.6. The damper pulley assembly as defined in wherein the cover is more rigid than the insulating layer.7. The damper pulley assembly as defined in wherein an air gap is disposed between the cover and the insulating layer.8. The damper pulley as defined in wherein the insulating layer is affixed to the cover via at least one of an adhesive and a mechanical fastener.9. The damper pulley assembly as defined in wherein the insulating layer is injection molded onto the cover via a dual shot injection molding process.10. The ...

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Номер записи: 28

11-02-2016 дата публикации

ISOLATING PULLEY

Номер: US20160040771A1

Автор: Ward Peter A.

Принадлежит:

An isolating pulley comprising a hub, a pulley journalled to the hub, a spring carrier journalled to the hub, a torsion spring engaged between the pulley and the spring carrier, a frictionmember engaged between the spring carrier and the hub, the frictionmember comprising a first multiple ribbed surface to engage the spring carrier and a second multiple ribbed surface to engage the hub, and the first multiple ribbed surface and the second multiple ribbed surface extending in a radial direction normal to an axis of rotation A-A. 1. An isolating pulley comprising:a hub;a pulley journalled to the hub;a spring carrier journalled to the hub;a torsion spring engaged between the pulley and the spring carrier;a friction member engaged between the spring carrier and the hub, the friction member comprising a first multiple ribbed surface to engage the spring carrier and a second multiple ribbed surface to engage the hub; andthe first multiple ribbed surface and the second multiple ribbed surface extending in a radial direction normal to an axis of rotation A-A.2. The isolating pulley as in claim 1 , wherein each of the first multiple ribbed surface and the second multiple ribbed surface comprises one or more rings concentric about an axis of rotation A-A.3. The isolating pulley as in claim 2 , wherein the torsion spring is axially compressed between the pulley and hub.4. The isolating pulley as in claim 3 , wherein the torsion spring is loaded in an unwinding direction.5. An isolating pulley comprising:a hub;a pulley journalled to the hub;a spring carrier journalled to the hub;a torsion spring engaged between the pulley and the spring carrier;a friction member engaged between the spring carrier and the hub, the friction member comprising a multiple ribbed surface to engage a spring carrier multiple ribbed surface; andthe multiple ribbed surface extending in a radial direction normal to an axis of rotation A-A.6. The isolating pulley as in claim 5 , wherein the multiple ribbed ...

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Номер записи: 29

06-02-2020 дата публикации

Isolator Decoupler

Номер: US20200040947A1

Автор: Chen Xiaohua Joe, Han Wanzhi, HODJAT YAHYA, Rahdar Essie, Sendegeya Charles M., Serkh Alexander, Ward Peter

Принадлежит:

An isolator decoupler comprising a shaft, a pulley journalled to the shaft, a one-way clutch engaged with the shaft, a spring carrier engaged with the one-way clutch, the spring carrier having a spring carrier surface, a torsion spring having a first end laser welded to the pulley and a second end laser welded to the spring carrier, the torsion spring having a volute with a width w, an annular spring support member having a spring support member outside surface, the annular spring support member independently moveable from the spring carrier and independently moveable from the shaft, a gap g between the annular spring support member and the spring carrier, the gap g being less than the width w, the first end comprising a first end coil, the first end coil bearing upon the spring support member outside surface, the first end coil laser welded to the spring support member outside surface, a torsion spring radial contraction limited by engagement with the spring carrier surface, and the gap g and the width w have a relationship (w−2r)>(g+c1+c2) were g>0. 1. An isolator decoupler comprising:a shaft;a pulley journalled to the shaft;a one-way clutch engaged with the shaft;a spring carrier engaged with the one-way clutch, the spring carrier having a spring carrier surface;a torsion spring having a first end welded to the pulley and a second end welded to the spring carrier;an annular spring support member having a spring support member outside surface, the annular spring support member independently moveable from the spring carrier and independently moveable from the shaft;the first end comprising a first end coil, the first end coil bearing upon the spring support member outside surface, the first end coil attached to the spring support member outside surface;a spring carrier surface outside diameter and a spring support member outside surface outside diameter being approximately equal; anda torsion spring radial contraction limited by engagement with the spring carrier ...

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Номер записи: 30

18-02-2016 дата публикации

ACCESSORY TUNING DEVICE WITH SPRING LOCK

Номер: US20160047427A1

Автор: Chen Joe, Harvey John, Liu Keming, Ward Peter

Принадлежит:

An accessory drive tuning device with a torsion spring for angular vibration isolation and having a spring pocket that frictionally engages the end of the torsion spring. The engagement may be with a wedge-shape on either the spring end or the pocket or both, adapted so that the spring end wedges into the pocket. The engagement may be by interference fit. One or both ends of the spring may be engaged in respective pockets. 1. An isolator decoupler comprising a torsional spring and a spring carrier with a wedge-shaped pocket machined therein that engages an end of said torsional spring.2. The isolator decoupler of wherein said engagement is by friction when the end of said torsional spring is biased or wedged into said wedge-shaped pocket.3. The isolator decoupler of wherein both ends of said torsional spring engage in respective wedge-shaped pockets.4. The isolator decoupler of wherein the end of said torsional spring is tapered.5. An isolator decoupler comprising:a torsional spring having a tapered end; anda spring carrier with a pocket machined therein that engages said tapered end of said torsional spring.6. The isolator decoupler of wherein said engagement is by friction when the end of said torsional spring is biased or wedged into said pocket.7. The isolator decoupler of wherein both ends of said torsional spring are tapered and engage in respective pockets.8. The isolator decoupler of wherein said pocket is wedge shaped.9. An accessory drive tuning device comprising:a torsional spring having a spring end; anda spring carrier having a pocket arranged to accept said spring end;wherein said spring end is frictionally restrained in said pocket.10. The accessory drive tuning device of wherein said frictional restraint is due to an interference fit between an outer cylindrical surface of said spring carrier and the inner diameter of a portion of said torsional spring.11. The accessory drive tuning device of wherein said frictional restraint is due to an ...

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Номер записи: 31

15-02-2018 дата публикации

FILTERING PULLEY COMPRISING AN IMPROVED DAMPING DEVICE

Номер: US20180045288A1

Автор: Cariccia Gianluca, GAUDE Ettore, GUALA Andrea, LUCIANI Gregorio

Принадлежит: DAYCO EUROPE S.R.L.

A filtering pulley having a hub adapted to be fixed to a rotating shaft, a pulley ring mounted coaxial and rotationally free on said hub, and at least one elastic assembly interposed between the hub and the pulley ring and a damper for damping the relative oscillations between the hub and the pulley ring is disclosed. The damper has a first damping level for relative rotations between the hub and the pulley ring which are smaller than a predetermined angle and a second damping level, which is greater than the first level, for relative rotations between the hub and the pulley ring which are larger than the predetermined angle. 1. A filtering pulley comprising:a hub defining a bore for receiving a shaft,a pulley ring mounted coaxial and rotationally free on said hub,at least one elastic assemblies interposed between said hub and said pulley ring, anda damper for damping the relative oscillations between said hub and said pulley ring,wherein said damper has a first damping level for relative rotations between said hub and said pulley ring, which are smaller than a predetermined angle, and a second damping level, which is greater than the first damping level, for relative rotations between said hub and said pulley ring which are larger than said predetermined angle.2. A pulley according to claim 1 , characterized in that damping is asymmetrical according to the relative direction of rotation between said hub and said pulley ring.3. A pulley according to claim 1 , characterized in that said damper comprises a C-bushing which slidingly cooperates with a cylindrical surface which is integral with one of said hub and said pulley ring and an open metallic ring mounted with radial driving onto said bush and coupled rotationally thereto claim 1 , said ring comprising at least one end protrusion adapted to cooperate with an end of an opening of another of said hub and said pulley ring.4. A pulley according to claim 3 , characterized in that said protrusion is movable in said ...

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Номер записи: 32

15-02-2018 дата публикации

ISOLATOR WITH DOUBLE ACTING SPRING SYSTEM WITH REDUCED NOISE

Номер: US20180045289A1

Автор: Antchak John, Boyes Andrew M., Replete Boris, STARODOUBOV Vladimir I.

Принадлежит:

An isolator is provided for use with an engine and in particular an engine that is assisted or started by MGU (Motor-Generator Unit) or a motor through an endless drive member. It comprises a double acting spring system for isolating crankshaft pulley from torsion vibration at the crankshaft, and in extreme conditions, such as during engine startup and accelerations or decelerations of the engine crankshaft relative to the pulley and when isolator operates in an “engine-driven” mode with the engine crankshaft is driven by the belt. 1. An isolator , comprising:a spring having a first spring end and a second spring end;a shaft adapter that is mountable to a crankshaft for rotation about an axis, wherein the shaft adapter has a first adapter drive surface that is engageable with the first spring end and a second adapter drive surface that is angularly spaced from the first adapter drive surface by an adapter drive surface spacing and that is engageable with the second spring end; anda pulley that is engageable with an endless drive member and that is rotatable relative to the shaft adapter, wherein the pulley has a first pulley drive surface that is engageable with the first spring end and a second pulley drive surface that is angularly spaced from the first pulley drive surface by a pulley drive surface spacing and that is engageable with the second spring end,wherein torque is transferrable from the shaft adapter to the spring through the first spring end, and from the spring to the pulley through the second spring end,wherein torque is transferrable from the pulley to the spring through the first spring end, and from the spring to the shaft adapter through the second spring end,wherein one of the adapter and pulley drive surface spacings is larger than the other of the adapter and pulley drive surface spacings,wherein, when transitioning from torque transfer from the shaft adapter to the pulley to torque transfer from the pulley to the shaft adapter, the second ...

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Номер записи: 33

22-02-2018 дата публикации

FILTERING PULLEY

Номер: US20180051792A1

Автор: Cariccia Gianluca, GAUDE Ettore, GUALA Andrea, LUCIANI Gregorio

Принадлежит: DAYCO EUROPE S.R.L.

A filtering pulley having a hub adapted to be fixed to a rotating shaft, a pulley ring mounted coaxial and rotationally free on the hub, and a plurality of elastic assemblies arranged circumferentially with respect to the hub and the pulley ring and each interposed between a pair of first elements integral with the hub and between a pair of second elements integral with the pulley ring is disclosed. Each elastic element forms with the first elements and with the second elements respective angular clearances, and the pulley ring and the hub have a free angle of relative rotation equal to the sum of the above-mentioned angular clearances. 1. A filtering pulley comprising:a hub defining a bore for receiving a shaft,a pulley ring mounted coaxial and rotationally free on said hub,a plurality of elastic assemblies arranged circumferentially with respect to said hub and said pulley ring and each interposed between a pair of first elements integral with said hub and between a pair of second elements integral with said pulley ring,wherein each elastic element forms with said first elements and with said second elements respective angular clearances (σ, α), said pulley ring and said hub having a free angle (β) of relative rotation equal to the sum of said angular clearances (σ, α).2. A pulley according to claim 1 , characterized in that said first elements comprise at least two spokes carried by an actuator integral with the hub.3. A pulley according to claim 1 , characterized in that said second elements are protrusions obtained on an element which is integral with the crown.4. A pulley according to claim 1 , characterized in that said elastic assembly comprises at least one arched spring sliding circumferentially inside a seat formed by said first elements and/or said second elements.5. A pulley according to claim 4 , characterized in that said elastic assembly comprises at least two sliding blocks applied to respective ends of said spring and sliding in said seat.6. A ...

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Номер записи: 34

23-02-2017 дата публикации

Device for the Transmission of a Torque with Torsional Vibration Damping

Номер: US20170051818A1

Автор: EBKE Andreas

Принадлежит:

A device for transmission of a torque with torsional vibration damping, includes a sprag clutch () and a damping element () which is arranged coaxially to the sprag clutch () and is in driving engagement therewith, wherein the damping element has at least one damping body () in the form of a three-dimensional wire meshwork, which is arranged between a torque transmission ring () and the sprag clutch () and is supported on the torque transmission ring () and the sprag clutch () in a circumferential direction. 1. A device for transmission of a torque with torsional vibration damping , comprising:a torque transmission ring,a sprag clutch anda damping element which is arranged coaxially to said sprag clutch and is in driving engagement therewith, the damping element having at least one damping body in the form of a three-dimensional wire meshwork, which is arranged between the torque transmission ring and the sprag clutch and is supported on the torque transmission ring and the sprag clutch in a circumferential direction.2. The device according to claim 1 ,further comprising ribs projecting radially from the torque transmission ring on the one hand and from the sprag clutch on the other hand, andwherein the damping element is held between the ribs with a form-fit in the circumferential direction.3. The device according to claim 2 , wherein each damping body is arranged to completely fill an associated space between the sprag clutch claim 2 , the torque transmission ring and the ribs.4. The device according to claim 1 , wherein the damping element surrounds the sprag clutch at an outer periphery thereof.5. The device according to claim 4 , wherein the torque transmission ring is includes a pulley which surrounds the damping element at an outer periphery thereof.6. The device according to claim 4 , wherein the torque transmission ring is supported on the sprag clutch without play in a radial direction.7. The device according to claim 6 , wherein the torque transmission ...

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Номер записи: 35

21-02-2019 дата публикации

DAMPER PULLEY FOR VEHICLE

Номер: US20190056021A1

Автор: LEE Jong Won

Принадлежит:

A damper pulley for a hybrid vehicle with a mild hybrid starter and generator (MHSG) includes: a crank adapter coupled to a crankshaft that is rotated by a driving torque of an engine of the hybrid vehicle; a clutch having a surface mounted on the crank adapter; a pulley body having an interior circumference to which a pulley adapter is coupled; and a bearing interposed between an exterior circumference of the crank adapter and the interior circumference of the pulley body and disposed so as to enable the pulley body to be freely rotatable. The clutch connects the crankshaft to the pulley body through the pulley adapter during an operation condition of the engine, and the clutch releases the connection of the crankshaft to the pulley body through the pulley adapter during the stopping condition of the engine. 1. A damper pulley for a hybrid vehicle with a mild hybrid starter and generator (MHSG) , the damper pulley comprising:a crank adapter coupled to a crankshaft that is rotated by a driving torque of an engine of the hybrid vehicle;a clutch having a surface mounted on the crank adapter;a pulley body having an interior circumference to which a pulley adapter is coupled; anda bearing interposed between an exterior circumference of the crank adapter and the interior circumference of the pulley body and disposed so as to enable the pulley body to be freely rotatable, whereinthe clutch connects the crankshaft to the pulley body through the pulley adapter during an operation condition of the engine, andthe clutch releases the connection of the crankshaft to the pulley body through the pulley adapter during a stopping condition of the engine.2. The damper pulley for the vehicle of claim 1 , wherein:the pulley adapter is disposed to be separated from the clutch by a predetermined gap, andthe pulley body is selectively coupled to the clutch to be integrally rotated with the crankshaft based on an operation of the clutch.3. The damper pulley for the vehicle of claim 1 , ...

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Номер записи: 36

21-02-2019 дата публикации

PULLEY ASSEMBLY FOR A ROTARY ELECTRICAL MACHINE

Номер: US20190056022A1

Автор: Collin Xavier, Giry Jérome, Phung Michel

Принадлежит: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR

Pulley assembly () comprising a hollow shaft () with an axis X, the hollow shaft () being suitable for being mounted on a shaft of a rotating electrical machine, the hollow shaft comprising at least one thread or tapping () and a collar () extending radially outwards, wherein said hollow shaft also includes: a nut ( ) screwed on the hollow shaft via the thread or tapping; a spring () mounted about a portion of the nut; at least one ball bearing () tightly fitted to the hollow shaft; a pulley (), tightly fitted to said at least one bearing, about the spring, the nut and the hollow shaft. The nut () includes a radial shoulder () mounted between the spring () and the ball bearing (), the spring being held axially between the collar () and the radial shoulder (). 1. A pulley assembly comprising a hollow shaft provided with an axis , the hollow shaft being designed to be fitted on a shaft of a rotary electrical machine , the hollow shaft comprising at least one thread or tapping and a collar which extends radially towards the exterior , the said pulley assembly additionally comprising:a nut screwed onto the hollow shaft by the said at least one thread or tapping;a spring fitted around a part of the nut;at least one ball bearing fitted clamped on the hollow shaft;a pulley fitted clamped on the said at least one bearing, around the spring, the nut and the hollow shaft,wherein the nut comprises a radial shoulder fitted between the spring and the ball bearing, the spring being retained axially between the collar and the radial shoulder.2. The pulley assembly according to claim 1 , further comprising:on the side of the collar which is axially opposite the said nut, a second nut, a second ball bearing and a second spring,wherein the second nut is screwed on the hollow shaft by means of the said at least one thread or tapping, the second spring is fitted around a part of the second nut, the second ball bearing is fitted tightly on the hollow shaft, andwherein the second nut ...

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Номер записи: 37

03-03-2016 дата публикации

TORSIONAL VIBRATION DAMPERS HAVING DUAL ELASTOMERIC MEMBERS

Номер: US20160061286A1

Автор: Manzoor Suhale

Принадлежит: DAYCO IP HOLDINGS, LLC

Torsional vibration dampers are disclosed that include a monolithic body having an axis of rotation, an innermost annular wall defining a bore therethrough for receiving a shaft, and an outer annular wall concentric about the axis of rotation and spaced radially outward relative to the innermost annular wall, an inertia member concentric about the axis of rotation and positioned radially inward relative to the outer annual wall, the inertia member having an inner surface facing the axis of rotation and an outer surface facing the outermost annular wall, a first elastomer member seated against the inner surface of the inertia member, and a second elastomer member seated against the outer surface of the inertia member and in between the inertia member and the outer annular wall. The first and second elastomer members operably couple the inertia member to the monolithic body for rotation therewith. 1. A torsional vibration damper comprising:a monolithic body having an axis of rotation, an innermost annular wall defining a bore therethrough for receiving a shaft, and an outer annular wall concentric about the axis of rotation and spaced radially outward relative to the innermost annular wall;an inertia member concentric about the axis of rotation and positioned radially inward relative to the outer annual wall, the inertia member having an inner surface facing the axis of rotation and an outer surface facing the outermost annular wall;a first elastomer member seated against the inner surface of the inertia member; anda second elastomer member seated against the outer surface of the inertia member and in between the inertia member and the outer annular wall;wherein the first and second elastomer members operably couple the inertia member to the monolithic body for rotation therewith.2. The torsional vibration damper of claim 1 , wherein the outer annular wall is concentric about the innermost annual wall and spaced radially outward therefrom thereby defining an annular ...

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Номер записи: 38

03-03-2016 дата публикации

APPARATUS FOR A DRIVE SYSTEM HAVING A CARTRIDGE HOUSING ONE OR MORE ELASTOMER MEMBERS

Номер: US20160061287A1

Автор: Manzoor Suhale

Принадлежит: DAYCO IP HOLDINGS, LLC

Torsional vibration dampers for FEADs are disclosed that include a hub having a sleeve defining a bore for receiving a shaft and an outer annular ring spaced radially outward from the sleeve, thereby defining an annular receptacle, a component for rotation with the hub having an inner annular ring disposed between the sleeve and the outer annular ring of the hub, and an annular cartridge seated in the annular receptacle between the inner annular ring of the component for rotation with the hub and the sleeve or outer annular ring of the hub. The annular cartridge defines a first annular groove having a generally C-shaped or U-shaped cross-sectional profile open radially outward, and has a first elastomer member seated therein in compression, thereby operatively coupling the component for rotation with the hub to the hub. The component may be a pulley body or an inertia member. 1. An apparatus for a drive system comprising:a hub having a sleeve defining a bore for receiving a shaft, thereby defining an axis of rotation, and an outer annular ring spaced radially outward from the sleeve, thereby defining an annular receptacle therebetween;a component for rotation with the hub, the component having an inner annular ring disposed between the sleeve and the outer annular ring of the hub;an annular cartridge defining a first annular groove that has a generally C-shaped or U-shaped cross-sectional profile, the annular cartridge seated between the inner annular ring of the component for rotation with the hub and the sleeve or the outer annular ring of the hub with the first annular groove open radially outward; anda first elastomer member seated in the first annular groove in compression, thereby operatively coupling the component for rotation with the hub to the hub for rotation therewith.2. The apparatus for a drive system of claim 1 , wherein the component for rotation with the hub is a pulley body having a belt-engaging portion radially-concentric about the hub and ...

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Номер записи: 39

01-03-2018 дата публикации

DECOUPLER WITH TUNED DAMPING AND METHODS ASSOCIATED THEREWITH

Номер: US20180058507A1

Автор: Antchak John R., Boudreau Justin, MARION Patrick D., Spicer Gary J., WILSON Lucas E., Xu Jun

Принадлежит:

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. 1. An endless drive arrangement for an engine , comprising:a crankshaft pulley mountable to a crankshaft from the engine;an alternator pulley mounted to an input shaft of an alternator, wherein the alternator operates at at least a first switching frequency and a second switching frequency;an endless drive member that is positioned to transfer power from the crankshaft pulley to the alternator pulley such that first order vibrations are produced at the crankshaft; and a hub that is adapted to be coupled to the alternator shaft such that the alternator shaft co-rotates with the hub about a rotational axis,', 'a pulley rotatably coupled to the hub, the pulley having an outer periphery that is positioned to engage the endless power transmitting element,', 'an isolation spring positioned to transfer rotational force from the pulley to the hub and to accommodate torsional vibration between the pulley and the hub,', 'a first friction surface operatively connected with the pulley,', 'a second friction surface operatively connected with the hub,', 'a biasing member positioned to exert a bias force between the first and second friction surfaces, and', 'a retainer engaging the biasing member to maintain the bias force,, 'a decoupler including'}wherein the second switching frequency is near a natural resonance frequency of the decoupler and the bias force between the first and second friction surfaces generates a damping torque during relative rotational movement between the pulley and the hub which attenuates said first order vibrations so ...

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Номер записи: 40

01-03-2018 дата публикации

COMPRESSION RING FOR CHAIN SPROCKET

Номер: US20180058566A1

Автор: Göb Matthias, Gomes Gustavo, Kroon Petrus Hubertus

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A compression ring of a chain sprocket is provided with improved wear characteristics and damping to match various forms of link plates of a chain assembly. The chain assembly includes a plurality of longitudinal link plates hingedly connected by a plurality of pins. The compression ring includes two arrays of compression pads, each array defined by a different profile. Each array of compression pads can be matched to two corresponding groups of link plates. Multiple forms of compression pads and link plate geometries can be accommodated. Compression pad damping force can be tuned by adjusting the width and/or height of the link plates. 1. A chain drive system , comprising: 'a plurality of longitudinal link plates hingedly connected by a plurality of pins;', 'a chain assembly having a plurality of circumferentially arranged teeth configured to receive the chain assembly;', 'at least one compression ring arranged axially adjacent to either side of the teeth, the compression ring configured with a first array and a second array of compression pads; and,, 'a sprocket havingthe first array of compression pads is defined by a first profile and the second array of compression pads is defined by a second profile, different than the first profile.2. The chain drive system of claim 1 , wherein the first and second arrays are arranged in an alternating circumferential pattern throughout the at least one compression ring.3. The chain drive system of claim 1 , wherein the first and second arrays have different damping characteristics.4. The chain drive system of claim 1 , wherein the first profile is defined by a first radial distance from an outer-most portion of the first profile to the center of the sprocket claim 1 , and the second profile is defined by a second radial distance from an outer-most portion of the second profile to the center of the sprocket.5. The chain drive system of claim 4 , wherein the first radial distance is not equal to the second radial distance.6. ...

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Номер записи: 41

20-02-2020 дата публикации

Elevator sheave traction surface

Номер: US20200055706A1

Автор: Xiaoyuan Chang

Принадлежит: Otis Elevator Co

A traction sheave for an elevator includes a composite coating applied directly to a surface of the traction sheave to at least partially define a traction surface arranged to engage a tension member. The composite coating including a coating having surface roughening particles arranged to provide a predetermined surface roughness of the traction surface within a range of 1-5 μm.

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Номер записи: 42

02-03-2017 дата публикации

Torsional vibration dampers having a hub with spokes acting as a second spring in series with an elastomeric member

Номер: US20170059028A1

Автор: Suhale Manzoor

Принадлежит: Dayco IP Holdings LLC

Torsional vibration dampers for rotating shafts are disclosed that have a hub or a hub portion of a pulley-hub monolithic body that has an innermost sleeve defining a bore, an outermost ring concentric with and spaced radially outward from the innermost sleeve, and a plurality of spokes connecting the innermost sleeve to the outermost ring that each have torsional flexibility to act as a first spring to attenuate torsional vibrations. The dampers include an elastomeric member positioned concentrically against the outermost ring or the innermost sleeve of the hub, where the elastomeric member acts as a second spring to attenuate torsional vibrations, and an inertia member positioned concentrically against the elastomeric member, which places the first spring and second spring in series. The dampers may be crankshaft, driveline, or direct drive dampers, and the equivalent spring rate for the first and second springs is governed by the elastomeric member.

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Номер записи: 43

27-02-2020 дата публикации

SPROCKET

Номер: US20200063849A1

Автор: Kurematsu Yuji, Mori Kaori

Принадлежит: TSUBAKIMOTO CHAIN CO.

In a sprocket including a cushion ring coming into contact with link plates of a chain, the cushion ring includes, on an outer circumferential surface, a plurality of convex sections coming into contact with the link plates, and the plurality of convex sections are provided at corresponding positions to tooth tips at identical pitches to a plurality of teeth and include convex sections having different shapes. 1. A sprocket , comprising:a plurality of teeth that is formed on a circumferential surface of the sprocket and is configured to engage with pins, bushes, or rollers of a chain; anda cushion ring provided on at least one side surface of the sprocket and having an outer circumferential surface configured to come into contact with link plates of the chain, whereinthe cushion ring includes, on the outer circumferential surface, a plurality of convex sections configured to come into contact with the link plates, andthe plurality of convex sections are provided at corresponding positions to tooth tips at identical pitches to the plurality of teeth and include convex sections having different shapes.2. The sprocket according to claim 1 , whereinthe plurality of convex sections are configured of first convex sections and second convex sections that are different from each other in shapes thereof, andthe first convex sections and the second convex sections are alternately disposed in a circumferential direction of the cushion ring.3. The sprocket according to claim 2 , whereinthe first convex sections are different from the second convex sections in heights in a radial direction of the cushion ring.4. The sprocket according to claim 2 , whereinthe first convex sections are different from the second convex sections in shapes of surfaces that is configured to come into contact with the link plates.5. The sprocket according to claim 2 , whereinthe first convex sections are different form the second convex sections in areas of surfaces that is configured to come into ...

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Номер записи: 44

09-03-2017 дата публикации

Silent Sprocket/Gear For Transmission Chains, In Particular For Motorcycles, And Mold Components For Its Production

Номер: US20170067551A1

Автор: OGNIBENE Franco

Принадлежит:

The problem of progressive deforming of the silencing rubber by the motion transmission member (chain) is present in silenced sprockets. In particular for a toothed crown, lacking a central hub, the problem of the deforming or “lowering” of the rubber hasn't been resolved adequately. In the case of a pinion with a hub, an excessive quantity of rubber is used. The silenced sprocket of the present invention comprises, adjacent to the base of its teeth (), a circular channel, or bilateral channel (), on the metal body of the sprocket itself. On the inner circular step () of the channel () are discharged the forces created in the rubber by the transmission chain. The bilateral channel has a minimal radial extension, such as about ½ cm in the motorcycle field. In general the silencing rubber element () and the bilateral channel (), which creates its housing, have a minimal radial extension compared to the sprocket radius. The invention also comprises a molding technique that uses special molding components (), adapted to apply the rubber silencing element on the sprocket metal body. These components are of annular circular shape, U cross section and a width essentially corresponding to the channel () width, rendering the mold independent from the specific shape of the sprocket metal 1. Silent sprocket/gear of the toothed crown type without a hub , comprising a circular disc-shaped metal body having a plurality of peripheral teeth and a center with a possible central hole , further comprising an elastic silencing member applied by means of injection molding on the metal body of the silent sprocket/gear , said elastic silencing member having the following characteristics:it is extended on each side of the metal body, in an area arranged all around the center, starting from a substantially circular ideal line and directly adjacent to the base of said peripheral teeth;it passes through a plurality of through openings obtained in the metal body and arranged in said area;it ...

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Номер записи: 45

12-03-2015 дата публикации

CRANK PULLEY DECOUPLING DEVICE

Номер: US20150072813A1

Автор: YOON Ki Bong

Принадлежит: HYUNDAI MOTOR COMPANY

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. 1. A crank pulley decoupling device , comprising:a crank pulley connected to one end of a crankshaft and configured to transmit a rotational force;a first spring inserted into the crank pulley and to have one end disposed in the crank pulley and an opposing end disposed in the crank shaft; anda second spring inserted into the crank pulley and disposed on an outer circumferential surface of the crankshaft.2. The crank pulley decoupling device according to claim 1 , wherein the first spring is a torsion spring and the second spring is an arc spring.3. The crank pulley decoupling device according to claim 1 , wherein the first spring is mounted in an axial direction of the crankshaft and the second spring is mounted in a circumferential direction of the crankshaft.4. The crank pulley decoupling device according to claim 1 , wherein the first spring and the second spring are spaced apart from each other.5. The crank pulley decoupling device according to claim 1 , wherein the crank pulley has an enlarged inner diameter of an opening through which the crankshaft is inserted to receive the second spring. The present application claims priority of Korean Patent Application Number 10-2013-0108445 filed Sep. 10, 2013, the entire contents of which ...

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Номер записи: 46

07-03-2019 дата публикации

TENSIONER MOUNTING STRUCTURE FOR VEHICLE

Номер: US20190072159A1

Автор: Baek Hyun Jeong, Kwon Heedo, Lee Jae Kyu, Lee Jaekyun, LEE Jong Won, Na Woong, Roh Tae Hoon, SEO In Jae, SONG Kye Oong

Принадлежит:

A tensioner mounting structure for the vehicle mounted for adjusting a tension of a first belt in an engine including a water pump and a mild hybrid starter and generator that are connected to a damper pulley mounted on a crankshaft provided in a cylinder block through the first belt, and an air conditioner compressor connected to the damper pulley through a second belt, may include a first tensioner mounted on the mild hybrid starter and generator between the water pump and the mild hybrid starter and generator; and a second tensioner mounted on a chain cover mounted on the engine between the damper pulley and the mild hybrid starter and generator. 1. A tensioner mounting structure for a vehicle mounted for adjusting a tension of a first belt in an engine including a water pump and a mild hybrid starter and generator that are connected to a damper pulley mounted on a crankshaft provided in a cylinder block through the first belt , and an air conditioner compressor connected to the damper pulley through a second belt , comprising:a first tensioner mounted on the mild hybrid starter and generator between the water pump and the mild hybrid starter and generator; anda second tensioner mounted on a chain cover mounted on the engine between the damper pulley and the mild hybrid starter and generator.2. The tensioner mounting structure for the vehicle of claim 1 , wherein the first tensioner includes:a first tensioner arm having a first end portion hinged to the mild hybrid starter and generator; anda first pulley mounted to a second end portion of the first tensioner arm to be rotatable and selectively in contact with the first belt upward with respect to a height direction of the engine.3. The tensioner mounting structure for the vehicle of claim 2 , wherein a length from a rotation center of the first tensioner arm mounted on the mild hybrid starter and generator to a mounting point of the first pulley is approximately 80 mm.4. The tensioner mounting structure for the ...

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Номер записи: 47

16-03-2017 дата публикации

PULLEY FOR ALTERNATOR

Номер: US20170074384A1

Автор: CHANG Hung-Chih, Liu Szu-En

Принадлежит:

The present invention relates to a pulley for an alternator, and in particular, to a pulley applicable to an automotive alternator. The pulley effectively mitigates the problem that a belt and a tension pulley of an alternator vibrate because a rotation speed of a vehicle engine changes, thereby improving the overall operating efficiency of the alternator and the service life of the working belt and the tension pulley. 1. A pulley for an alternator , comprising:an outer wheel, provided with an axle hole at the center;a clutch wheel, fixedly disposed in the axle hole of the outer wheel and having a pivot hole;a hollow connecting shaft, having a first end and a second end, wherein the first end is rotatably disposed in the pivot hole of the clutch wheel so that the hollow connecting shaft maintains a co-rotational relationship with the outer wheel in a first relative rotation direction by means of the clutch wheel, while in a second relative rotation direction, the hollow connecting shaft is disassociated from the co-rotational relationship with the outer wheel and presents an idling state; and the second end of the hollow connecting shaft is provided with a first protruding portion;a hollow core shaft, having a first end and a second end, wherein the hollow core shaft is rotatably received in the outer wheel, and the second end of the hollow core shaft is rotatably arranged at the second end of the hollow connecting shaft; the second end of the hollow core shaft provided with a second protruding portion, and the second protruding portion corresponds to the first protruding portion; andan elastic element, disposed between the second end of the hollow connecting shaft and the second end of the hollow core shaft.2. The pulley for an alternator according to claim 1 , further comprising a tight-fit component sleeved over an outer circumferential wall surface of the first end of the hollow core shaft in a tight-fit manner claim 1 , and the tight-fit component is also ...

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Номер записи: 48

14-03-2019 дата публикации

PULLEY ASSEMBLY

Номер: US20190078677A1

Автор: CHOI Kum Lim, LEE Keunseok

Принадлежит:

A pulley assembly connecting an ISG driveshaft of an ISG and an engine to each other through a belt may include: a pulley member around which the belt is wound; a spring hub fixed to an internal peripheral surface of the pulley member; an ISG hub rotatably disposed when the ISG hub is distanced from an internal peripheral surface of the spring hub by a predetermined interval and connected to the ISG driveshaft; a limit device provided in the spring hub and ISG hub and limiting a rotation of the ISG hub to rotation by a predetermined rotation angle; and a plurality of leaf springs radially inserted into the spring hub in a circumferential direction thereof, and having one end portions fixed to the spring hub and the other end portions penetrating the ISG hub. 1. A pulley assembly connecting an integrated starter generator (ISG) driveshaft of an ISG and an engine to each other through a belt , comprising:a pulley member around which the belt is wound;a spring hub fixed to an internal peripheral surface of the pulley member;an ISG hub rotatably disposed when the ISG hub is distanced from an internal peripheral surface of the spring hub by a predetermined interval and connected to the ISG driveshaft;a limit device provided in the spring hub and the ISG hub and limiting a rotation of the ISG hub to rotation by a predetermined rotation angle; anda plurality of leaf springs radially inserted into the spring hub in a circumferential direction thereof, and having a first end portion fixed to the spring hub and a second end portion penetrating the ISG hub.2. The pulley assembly of claim 1 , wherein the limit device includes:at least one first limiter protrusion protruding from the internal peripheral surface of the spring hub toward an internal center of the spring hub; andsecond limit protrusions protruding in pair on an external peripheral surface of the ISG hub with the first limit protrusion interposed therebetween and having a clearance formed between the second limiter ...

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Номер записи: 49

23-03-2017 дата публикации

ELEVATOR INSTALLATION ROLLER WITH RESTRAINING ELEMENT

Номер: US20170081151A1

Автор: Deng Liang, Han Lin

Принадлежит:

In an elevator installation a belt-like support is guided over a roller. The roller includes at least one restraining element, which is arranged laterally of a roller contact surface. Lateral jumping-off of the belt-like support from the roller is thereby prevented. The restraining element additionally has a guide surface inclined toward the roller contact surface. 114-. (canceled)15. An elevator installation , in which a belt-like support is guided over a roller , comprising: the roller having at least one restraining element arranged laterally of a roller contact surface engaged by the belt-like support , wherein the restraining element has a guide surface inclined towards the roller contact surface.16. The elevator installation according to wherein the restraining element has an inner diameter and an outer diameter claim 15 , the inner diameter lying laterally closer to the roller contact surface than the outer diameter claim 15 , wherein the inner diameter is smaller than the outer diameter.17. The elevator installation according to wherein the restraining element has a center bore and wherein a shaft of the roller is guided through the center bore.18. The elevator installation according to wherein the restraining element is rotatably mounted on the shaft at the center bore.19. The elevator installation according to wherein the restraining element includes a bearing mounting the restraining element on the shaft.20. The elevator installation according to wherein the bearing is a ball bearing.21. The elevator installation according to wherein the restraining element is formed of at least one of steel claim 15 , copper claim 15 , aluminum and synthetic materials.22. The elevator installation according to including two of the restraining element wherein a respective one of the two restraining elements is arranged on an associated side of the roller laterally of the roller contact surface and wherein the two restraining elements are arranged in mirror image with ...

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Номер записи: 50

26-03-2015 дата публикации

ALTERNATOR PULLEY, AND MOUNTING STRUCTURE OF ALTERNATOR PULLEY AND ALTERNATOR FOR VEHICLE

Номер: US20150087455A1

Автор: Oh Wan Soo

Принадлежит: HYUNDAI MOTOR COMPANY

An alternator pulley, a mounting structure of an alternator pulley, and an alternator for a vehicle are configured to reduce vibration by mounting an adaptor which includes a pendulum on the alternator pulley, by reacting a pendulum vibration with a belt vibration which have inverse phases to each other, and by completely press-fitting the adaptor to the alternator pulley without backlash. The alternator pulley, mounting structure and alternator may include a pulley body configured to be coupled with an alternator shaft and receiving power by a belt and an adaptor coupled with the pulley body and absorbs vibration caused by power delivery, wherein the adaptor may further include at least one pendulum for absorbing vibration caused by the power delivery. 1. An alternator pulley for a vehicle , comprising:a pulley body configured to be coupled with an alternator shaft and receiving power by a belt; andan adaptor coupled with the pulley body and absorbing vibration caused by power delivery.2. The alternator pulley of claim 1 , wherein the adaptor further includes at least one pendulum for absorbing vibration caused by the power delivery.3. The alternator pulley of claim 2 , wherein the pulley body is configured to generate belt vibration which has a predetermined frequency by the power delivery claim 2 , and the pendulum is configured to generate pendulum vibration which has a resonant frequency by rotation claim 2 ,wherein the resonant frequency of pendulum vibration is equal to the predetermined frequency of belt vibration.4. The alternator pulley of claim 3 , wherein the pendulum vibration and the belt vibration have inverse phases to each other.5. The alternator pulley of claim 1 , wherein the adaptor comprises:a cylindrical connecting portion which is coupled with the pulley body;a disk concentrically coupled with the connecting portion at one side of the connecting portion; andat least one pendulum mounted on a predetermined position of an exterior circumference ...

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Номер записи: 51

23-03-2017 дата публикации

DAMPER APPARATUS FOR ALTERNATOR PULLEY

Номер: US20170082170A1

Автор: Oh Wan Soo

Принадлежит: HYUNDAI MOTOR COMPANY

A damper apparatus for an alternator pulley uses a mass inertia body installed on a same axis as the alternator pulley to promote absorption of vibrations and removal of noises occurring due to a resonance of the alternator. 1. A damper apparatus for an alternator pulley , comprising:a mass inertia body configured to be disposed on a same axis as an alternator shaft while being positioned at a front side of the alternator pulley; andan elastic mechanism configured to connect the alternator pulley and the mass inertia body and to deliver an inertial rotating force of the mass inertia body to the alternator pulley while delivering a rotating force of the alternator pulley to the mass inertia body.2. The damper apparatus of claim 1 , further comprising a bearing configured to:be installed between the alternator pulley and the mass inertia body;regulate an installation position of the mass inertia body; andblock delivery of the rotating forces between the alternator pulley and the mass inertia body.3. The damper apparatus of claim 2 , wherein a rotating center of the mass inertia body and a mass center of the mass inertia body coincide with each other claim 2 , and an axial center of the alternator shaft and the rotating center of the mass inertia body are configured to coincide with each other.4. The damper apparatus of claim 2 , wherein a front surface of the alternator pulley is provided with a concave groove claim 2 , some of the mass inertia body is configured to be inserted into the concave groove claim 2 , and the bearing is configured to be installed in the concave groove between an inner circumferential surface of the concave groove and an outer circumferential surface of the mass inertia body.5. The damper apparatus of claim 4 , wherein the mass inertia body includes:an adaptor configured to be inserted into the concave groove to be connected to the alternator pulley by the bearing and coupled with one end of an elastic mechanism; anda mass body configured to ...

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Номер записи: 52

23-03-2017 дата публикации

SELF-ALIGNING PULLEY

Номер: US20170082177A1

Автор: Manzoor Suhale

Принадлежит: DAYCO IP HOLDINGS, LLC

Self-aligning pulleys are disclosed that have a hub, a pulley body concentric about the hub and spaced a distance apart therefrom to define an annular gap, and an annular compliant member disposed in the annular gap between the hub and the pulley body to thereby operatively couple the pulley body to the hub for rotation therewith. The annular compliant member is three-dimensionally compliant to allow the pulley body to adjust in one or more of an axial orientation and a conical orientation relative to the hub to correct misalignments of the hub within a system of pulleys and a belt. 1. A self-aligning pulley comprising:a hub;a pulley body having a belt-engaging surface, wherein the belt-engaging surface is concentric about the hub and spaced a distance apart therefrom to define an annular gap; andan annular compliant member disposed in the annular gap between the hub and the pulley body and operatively coupling the pulley body to the hub for rotation therewith;wherein the annular compliant member is three-dimensionally compliant to allow the pulley body to adjust in one or more of an axial orientation and a conical orientation relative to the hub.2. The self-aligning pulley of claim 1 , further comprising:a bearing having a first race and a second race;wherein the hub is concentric about the second race of the bearing for rotation with the second race.3. The self-aligning pulley of claim 2 , wherein the self-aligning pulley is an idler pulley claim 2 , and the first race of the bearing is coupled to a shaft.4. The self-aligning pulley of claim 1 , wherein the hub has an outer radial surface and the belt-engaging member has an inner radial surface facing one another and defining the annular gap; wherein the compliant member is radially concentric about the outer radial surface of the hub.5. The self-aligning pulley of claim 4 , wherein the annular compliant member has a width that is substantially similar to a width of the hub or a width of the pulley body or has a ...

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Номер записи: 53

25-03-2021 дата публикации

Pulley decoupler having a centrifugal pendulum device with a first friction device

Номер: US20210088106A1

Автор: Heinrich Daniel, Mende Hartmut, Rasch Philipp, Sieffert Jean, STUFFER Andreas

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A pulley decoupler for an accessory drive comprises input and output parts. The output part and the input part are rotatable about a common axis of rotation and are rotatable to a limited extent relative to one another. A centrifugal pendulum device is provided for damping torsional vibrations with a centrifugal pendulum flange that can be rotated about the axis of rotation and has at least one pendulum mass displaceable under centrifugal force relative to the centrifugal pendulum flange. The at least one pendulum mass is acted on by a friction force generated by a first friction device having a first spring and at least one first friction element. 1. A pulley decoupler for an accessory drive , comprising:an input part;an output part, the output part and the input part being rotatable about a common axis of rotation and being rotatable to a limited extent relative to one another; anda centrifugal pendulum device for damping torsional vibrations with a centrifugal pendulum flange which can be rotated about the axis of rotation and which has at least one pendulum mass which is displaceable under centrifugal force relative to the centrifugal pendulum flange, wherein the at least one pendulum mass is acted on by a friction force generated by a first friction device having a first spring and at least one first friction element.2. The pulley decoupler according to claim 1 , wherein the first spring is supported on a cover of a pulley of the output part.3. The pulley decoupler according to claim 2 , wherein the first friction element is disposed in a receptacle of the cover and is guided parallel to the axis of rotation.4. The pulley decoupler according to claim 1 , wherein at least a section friction element is arranged between the at least one pendulum mass and the centrifugal pendulum flange.5. The pulley decoupler according to claim 1 , wherein the centrifugal pendulum flange is arranged between a spring flange of the input part and a hub of the pulley decoupler.6. The ...

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Номер записи: 54

25-03-2021 дата публикации

ISOLATION DEVICE WITH SELECTED ANGLE BETWEEN SPRING STOP AND DAMPING MEMBER

Номер: US20210088120A1

Автор: Frankowski Marek, Williams Warren J., Xu Jun

Принадлежит:

In an aspect, an isolation device is provided for a belt and a component shaft in an engine. The device includes a hub, a pulley, an isolation spring and a damping member that is fixed rotationally relative to the hub and is engageable frictionally with the pulley. Torque transmission through the spring below a selected non-zero torque, irrespective of hub load on the pulley, drives a change in radius of the helical coils of the spring that is sufficiently small that the spring avoids pressing the damping member against the pulley. Torque transmission through the spring above the selected non-zero torque, irrespective of hub load on the pulley, drives a change in radius of the helical coils that is sufficiently large that the isolation spring applies a radial force to press the damping member against the pulley so as to generate frictional damping. 1. An isolation device for engagement between an endless drive member for an engine and a shaft of a component in operative engagement with the endless drive member , comprising:a hub that is mountable to the shaft of the component;a pulley that is rotatable relative to the hub and positioned for engagement with the endless drive member;an isolation spring that is a helical torsion spring that is positioned to transfer torque along a torque path between the hub and the pulley, wherein the isolation spring has a first spring end positioned to engage a first spring end engagement feature along the torque path, a second spring end positioned to engage a first spring end engagement feature along the torque path, and a plurality of helical coils between the first and second spring ends; anda damping member that is fixed rotationally relative to one of the hub and the pulley and is engageable frictionally with the other of the hub and the pulley and is positioned radially between the isolation spring and the other of the hub and the pulley, wherein the damping member has a first angular end and a second angular end and has a ...

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Номер записи: 55

31-03-2016 дата публикации

ISOLATOR FOR USE WITH ENGINE THAT IS ASSISTED OR STARTED BY AN MGU OR A MOTOR THROUGH AN ENDLESS DRIVE MEMBER

Номер: US20160091048A1

Автор: Boyes Andrew M., Replete Boris, Tran Hao

Принадлежит:

An isolator for isolating a device driven by an engine via an endless drive member is described. The isolator comprises a shaft adapter that is connectable with a shaft of the device, defining a shaft adapter axis, a rotary drive member that is rotatable relative to the shaft adapter and has an endless drive member engagement surface that is engageable with the endless drive member, and an isolation spring arrangement positioned to transfer torque between the shaft adapter and the rotary drive member. The isolation spring arrangement has at least one isolation spring that is axially offset from the endless drive member engagement surface. The at least one isolation spring has an outer edge that is radially outside the endless drive member engagement surface. 1. An isolator for isolating a device driven by an engine via an endless drive member , comprising:a shaft adapter that is connectable with a shaft of the device, the shaft adapter defining a shaft adapter axis;a rotary drive member that is rotatable relative to the shaft adapter and that has an endless drive member engagement surface that is engageable with the endless drive member; andan isolation spring arrangement positioned to transfer torque between the shaft adapter and the rotary drive member, the isolation spring arrangement having at least one isolation spring that is axially offset from the endless drive member engagement surface, wherein the at least one isolation spring has an outer edge that is radially outside the endless drive member engagement surface.2. An isolator as claimed in claim 1 , further comprising:a spring sleeve connected to the rotary drive member and that at least partially encloses the isolation spring arrangement therein.3. An isolator as claimed in claim 1 , wherein the rotary drive member is rotationally supported on the shaft adapter by a bushing therebetween.4. An isolator as claimed in claim 1 , wherein the device is a motor-generator unit.5. An isolator as claimed in claim ...

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Номер записи: 56

31-03-2016 дата публикации

ALTERNATOR DAMPER PULLEY FOR VEHICLE

Номер: US20160091076A1

Автор: YUN Jeyong

Принадлежит:

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. 1. An alternator damper pulley for a vehicle , the alternator damper pulley comprising:a pulley body connected to an engine to receive a rotational power from the engine;a shaft connection portion provided within the pulley body such that a rotational shaft of an alternator is insertedly coupled therein;a torsion spring 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 interposed between the torsion spring and the pulley body to connect or disconnect the shaft connection portion and the pulley body; anda friction damper installed to apply a frictional damping force to the shaft connection portion.2. The alternator damper pulley of claim 1 , wherein the friction damper comprises:a friction plate configured to generate the frictional damping force to be tightly attached to the shaft connection portion; anda diaphragm spring pressing the friction plate toward the shaft connection portion.3. The alternator damper pulley of claim 2 , wherein the friction plate is tightly installed on an upper surface of the shaft connection portion claim 2 , and the diaphragm spring is fastened to an upper surface of the pulley body by a plurality of fastening bolts.4. The alternator damper ...

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Номер записи: 57

29-03-2018 дата публикации

Isolator that includes first and second isolation spring arrangement in series

Номер: US20180087599A1

Автор: Boris REPLETE

Принадлежит: LITENS AUTOMOTIVE PARTNERSHIP

In an aspect, an isolator is provided for isolating a device driven by an engine via an endless drive member. The isolator includes a shaft adapter that is connectable with a shaft of the device and that defines an isolator axis, a rotary drive member that is engageable with the endless drive member, a first isolation spring arrangement that includes a first torsion spring, and that is positioned to transfer torque between the shaft adapter and an intermediate drive member, and a second isolation spring arrangement that is positioned to transfer torque between the intermediate member and the rotary drive member.

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Номер записи: 58

30-03-2017 дата публикации

Super charger components

Номер: US20170089441A1

Автор: Andrew Jason Zimmer

Принадлежит: ZPE Licensing Inc

A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

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Номер записи: 59

19-03-2020 дата публикации

DRIVE WHEEL FOR DRIVING A FEED CHAIN FOR THE DRY FEEDING OF LIVESTOCK

Номер: US20200087075A1

Автор: Gerhardt-Hansen Anders, Holm Hugo Styrbask, Tobergte Christian

Принадлежит:

A drive wheel for driving a feed chain for dry-feeding livestock includes a base wheel having an axial passage for receiving a drive shaft and, a gear rim having a toothed external circumferential face, wherein the external circumferential face has a multiplicity of tooth elements. Each tooth element has two tooth tips and one chain clearance disposed between the two tooth tips. At least the gear rim composed of an elastic material. 115-. (canceled)16. A drive wheel for driving a feed chain for dry-feeding livestock , the drive wheel comprising:a base wheel having an axial passage for receiving a drive shaft; anda gear rim having a toothed external circumferential face, wherein the external circumferential face comprising a multiplicity of tooth elements, each tooth element having two tooth tips and one chain clearance disposed between the two tooth tips;wherein the gear rim is composed of an elastic material.17. The drive wheel of claim 16 , wherein the elastic gear rim material has a SHORE hardness A between 90 and 120.18. The drive wheel of claim 16 , wherein each tooth element has a baffle disk bearing face claim 16 , the baffle disk bearing face comprising a first portion and a second portion.19. The drive wheel of claim 18 , wherein the first portion and the second portion of the baffle disk bearing face are inclined toward one another.20. The drive wheel of claim 18 , wherein at least one of the first and the second portion of the baffle disk bearing face has a curved surface.21. The drive wheel of claim 20 , wherein the curved surface of the least one of the first and the second portion of the baffle disk bearing face has a variable radius.22. The drive wheel of claim 18 , wherein at least one of the first and the second portion of the baffle disk bearing face has a contoured surface.23. The drive wheel of claim 16 , wherein the base wheel is also composed of an elastic material.24. The drive wheel of claim 23 , wherein the elastic material for each of the ...

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Номер записи: 60

19-03-2020 дата публикации

PULLEY INSERT

Номер: US20200088271A1

Автор: Fisk Thomas, Kwok Ada, Moores Jason, Wade Robert Andrew

Принадлежит:

Methods and systems are provided for a pulley insert. In one example, a pulley insert for a FEAD pulley comprises a first member insertable into a pulley such that the first member is rotatable within the pulley, the first member comprising a cavity for receipt of a second member; and a second member insertable into the cavity of the first member such that, when the first member is inserted into a pulley and the second member is inserted into the cavity of the first member, the second member prevents rotation of the first member relative to the pulley. 1. An insert for a front end accessory drive (FEAD) pulley , comprising:a first member insertable into a pulley opening of a FEAD pulley, wherein the first member is rotatable within the pulley opening, the first member comprising a cavity for receipt of a second member, wherein the second member blocks rotation of the first member within the pulley opening, wherein the first member comprises a first member limb, wherein the first member limb is a protrusion away from the body.2. The insert of claim 1 , wherein the second member comprises a second member limb insertable within the cavity and configured to block rotation of the first member relative to the FEAD pulley.3. The insert of claim 1 , wherein a combination of the second member limb and the first member limb fill an area of the pulley opening.4. The insert of wherein the first member comprises a first member body and wherein the cavity is a gap in the first member body.5. The insert of claim 4 , wherein the cavity is at least partially defined by the first member limb.6. The insert of claim 4 , wherein the first member limb extends from an outer circumference of the first member body.7. The insert of claim 4 , wherein the first member limb comprises a protrusion extending away from the first member limb and defining a slot delimited by the first member body claim 4 , the first member limb claim 4 , and the protrusion claim 4 , wherein the slot is configured to ...

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Номер записи: 61

19-03-2020 дата публикации

CHAIN WHEEL

Номер: US20200088287A1

Автор: BATENBURG Ronald

Принадлежит: Joz B.V.

A chain wheel includes a body and protrusions extending outward along the periphery of the body for receiving links of a chain. The protrusions are connected releasably to the body and are spring-mounted independently of each other in a peripheral direction relative to the body. 1. A chain wheel comprising:a body, andprotrusions extending outward along the periphery of the body for receiving links of a chain,wherein the protrusions are connected releasably to the body and are spring-mounted independently of each other in a peripheral direction relative to the body.2. The chain wheel as claimed in claim 1 , wherein the protrusions are configured to receive the links at least one of thereon and therebetween.3. The chain wheel as claimed in claim 1 , further comprising resilient arms which are each connected adjacent to a first end thereof to the body and connected adjacent to a second end thereof to a protrusion corresponding thereto.4. The chain wheel as claimed in claim 3 , wherein the number of resilient arms corresponds to the number of protrusions.5. The chain wheel as claimed in claim 1 , wherein the protrusions and the body comprise mutually co-acting spring elements and receiving chambers for receiving the spring elements therein.6. The chain wheel as claimed in claim 5 , wherein walls of each receiving chamber engage opposite sides of the spring element received therein.7. The chain wheel as claimed in claim 5 , wherein the spring elements comprise at least one of a rubber plug claim 5 , cup spring washers and die springs.8. A manure slide device for sliding manure over a floor of at least one of a manure passage and a manure gutter in or outside a livestock accommodation claim 5 , comprising:a slide member,a chain connected to the slide member, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a chain wheel as claimed in for receiving a part of the chain at least one of therein and thereon, configured such that a rotation of the chain wheel causes a ...

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Номер записи: 62

06-04-2017 дата публикации

OVERRUNNING ALTERNATOR DECOUPLING PULLEY DESIGN

Номер: US20170097068A1

Автор: AGNITCH JOHN G., MEZA NELSON

Принадлежит:

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 a torsion spring and a one-way overrunning clutch mechanism allowing for the free run of the pulley shaft. 1. A pulley assembly comprising:(a) an inner shaft;(b) a damping element coupled to and disposed about the inner shaft;(c) a one-way overrunning clutch disposed between the inner shaft and the damping element, the one-way overrunning clutch selectively permitting torque to be transferred from the damping element to the inner shaft, and substantially preventing the transfer of torque from the inner shaft to the damping element;(d) an outer pulley housing disposed about and spaced from the damping element such that minimal to no friction exists between the damping element and the outer pulley housing;(e) a torsion spring, situated longitudinally along the axis of the inner shaft between the damping element and an inner portion of the outer pulley housing, the spring having a top end adjacent to the damping element and a bottom end adjacent to the interior section of the outer pulley housing, the top end of the torsion spring matingly coupled to the damping element and the bottom end of the torsion spring matingly coupled to the outer pulley housing, whereby torsional impacts to the pulley assembly are substantially reduced;(f) the damping element and the outer pulley housing include an integral spring pocket for matingly coupling to the torsion spring, the spring pocket having the same or similar helical profile as the torsion spring to prevent the spring from becoming dislodged from the damping element or outer pulley housing; and(g) the outer pulley housing includes a plurality of inner surface portions, the inner surface portions comprising a first inner surface portion towards a top of the outer pulley housing having a first radius, a second ...

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Номер записи: 63

16-04-2015 дата публикации

Damper pulley

Номер: US20150105196A1

Автор: Jae Kwon Lee

Принадлежит: Hyundai Motor Co, Kia Motors Corp

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.

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Номер записи: 64

14-04-2016 дата публикации

Torsional vibration dampers

Номер: US20160102730A1

Автор: Anthony Eugene LANNUTTI, Christopher R. Buddington, Suhale Manzoor, William J. Piepsney

Принадлежит: Dayco IP Holdings LLC

Torsional vibration dampers are disclosed that have a hub having a plate extending radially outward about a shaft-receiving member, a first portion of an inertia member defining a back face and a bore therethrough and having an annular flange concentric about the axis of rotation, a first elastomeric member and a second elastomeric member positioned against opposite sides of the plate, and a second portion of the inertia member fastened to the first portion of the inertia member by one or more fasteners, thereby placing the first and second elastomeric members in compression. The shaft-receiving member of the hub is positioned in the bore with the plate of the hub spaced a distance from an interior surface of the annular flange, and the plate of the hub and the interior surfaces of each of the first and second portions of the inertia member facing the plate define dual common vertices.

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Номер записи: 65

14-04-2016 дата публикации

Damper pulley manufacturing method and damper pulley manufacturing apparatus

Номер: US20160102749A1

Автор: Tomohito ISHIKURA

Принадлежит: JTEKT Corp

A damper pulley manufacturing method includes an arranging process in which a circular hub having a cylindrical outer peripheral surface and a circular pulley having a cylindrical inner peripheral surface are arranged such that the cylindrical outer peripheral surface opposes the cylindrical inner peripheral surface, a centering process in which a tapered portion of a first centering jig is made to abut on an axial end portion of the hub and a tapered portion of a second centering jig is made to abut on an axial end portion of the pulley to perform centering of the hub and the pulley, and a press-fitting process in which after the centering process, a damper rubber is press-fitted between the cylindrical outer peripheral surface and the cylindrical inner peripheral surface.

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Номер записи: 66

08-04-2021 дата публикации

Pulley Structure

Номер: US20210102614A1

Автор: Dan Ryosuke, Imai Katsuya, Morimoto Takashi, Shimamura Hayato

Принадлежит: MITSUBOSHI BELTING LTD.

The present invention relates to a pulley structure () equipped with an outer rotating body (), an inner rotating body (), and a coil spring () provided between the outer rotating body () and the inner rotating body (). The coil spring () is configured so as to undergo torsional deformation in a diameter-expanding or a diameter-contracting direction, thereby engaging the outer rotating body () and the inner rotating body () and transmitting torque, and to undergo torsional deformation in the direction opposite the direction in which torque is transmitted, thereby entering a disengaged state in which the coil spring slides with the outer rotating body () or the inner rotating body (), thus interrupting the transmission of torque. The number of windings of the coil spring () is in a range between [M-0.125] and M (both inclusive), where M is a natural number. 1. A pulley structure comprising:a cylindrical outer rotating body around which a belt is to be wound;an inner rotating body provided on a radial inside of the outer rotating body and relatively rotatable with respect to the outer rotating body around a common rotation axis with the outer rotating body; anda coil spring provided between the outer rotating body and the inner rotating body and compressed in an axial direction along the rotation axis,wherein the coil spring is configured to be engaged with the outer rotating body and the inner rotating body due to torsional deformation in a diameter expansion or diameter reduction direction to transmit torque between the outer rotating body and the inner rotating body, and is configured to come into a disengaged state in which the coil spring slides with respect to the outer rotating body or the inner rotating body due to torsional deformation in a direction opposite to the direction when the torque is transmitted, so as to block the transmission of torque between the outer rotating body and the inner rotating body, andwherein the coil spring has a number of windings ...

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Номер записи: 67

19-04-2018 дата публикации

DECOUPLER WITH ONE-WAY CLUTCH AND FAIL-SAFE SYSTEM

Номер: US20180106355A1

Автор: Canto Michelotti Alvaro

Принадлежит:

The present invention relates to a decoupler with free wheel system and comprising a vibration damping pulley, a shaft actionable by the pulley, hub pieces having a first hub piece and a second hub piece, hub pieces being mounted between the inner race of the pulley and the outer surface of the shaft, at least one journal element between the shaft and pulley, along with a torsion spring, and a clutch spring, with the first hub piece being mounted on the shaft and the second hub piece being mounted around the shaft and can rotate relative to it, the torsion spring being disposed between the outer race of the hub pieces and the inner race of pulley, having a first end operatively attachable to the pulley and a second end operatively attachable to the second hub piece and the clutch spring being disposed internally in relation to the torsion spring and which is frictionally engaged with the hub pieces for transmission of torque to the shaft. 1. A decoupler , comprising:a pulley rotatable about a longitudinal axis, said pulley defining an inner cavity and having a pulley endstop extending into said inner cavity;a pulley endstop positioned in said inner cavity and operably engaged with said pulley;a torsion spring positioned in said inner cavity about said shaft, said torsion spring having a first endstop and a second endstop, wherein said first endstop of said torsion spring is operably engaged with said pulley endstop;a hub positioned in said inner cavity about said shaft, said hub having a hub endstop, wherein said second endstop of said torsion spring is operably engaged with said hub endstop;a clutch race positioned in said inner cavity about said shaft, said clutch race interconnected with said shaft such that said clutch race rotates with said shaft;a one-way clutch positioned in said inner cavity about said shaft, said one-way clutch interconnected to said hub such that said pulley transmits torque to said one-way clutch via said torsion spring and said hub, said ...

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Номер записи: 68

13-05-2021 дата публикации

FREEWHEEL AND AUXILIARY DRIVE

Номер: US20210140495A1

Автор: Rasch Philipp, Stober Benjamin

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A freewheel for blocking or interrupting a torque transmission of a motor vehicle comprises a first ring configured for the input and/or output of a torque and a second ring that is arranged substantially coaxially to the first ring and configured for the output and/or input of the torque. The freewheel includes a plurality of first blocking elements, movable between a blocking position and a freewheeling position, for blocking the first ring with the second ring in a circumferential direction in the blocking position and for interrupting a torque transmission between the first ring and the second ring in the freewheeling position. A decoupler is coupled to the second ring or to the first ring for damping rotational irregularities. The decoupler has a housing, mounted on the first ring or the second ring via a housing bearing, for providing a restoring torque directed against the rotational irregularity. A brake element, which can act indirectly or directly on the second ring and/or the first ring, is provided for damping the movement of the first ring and/or the second ring. The brake element is connected indirectly or directly to the housing of the decoupler in a rotationally fixed manner. 1. A freewheel for blocking or interrupting a torque transmission of a motor vehicle , comprising:a first ring configured for an input and/or an output of a torque,a second ring, arranged substantially coaxially to the first ring, configured for the output and/or input of the torque,a plurality of first blocking elements, movable between a blocking position and a freewheeling position, for blocking the first ring with the second ring in a circumferential direction in the blocking position and for interrupting a torque transmission between the first ring and the second ring in the freewheeling position,a decoupler, coupled to the second ring or to the first ring, for damping rotational irregularities, wherein the decoupler has a housing, mounted on the first ring or the second ...

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Номер записи: 69

17-07-2014 дата публикации

Inverted tooth chain and sprocket drive system with reduced meshing impact

Номер: US20140200106A1

Автор: Darren J. Stewart, James D. Young

Принадлежит: Cloyes Gear and Products Inc

An inverted tooth chain and sprocket drive system in which the initial contact distance IC D , the meshing impact angle Sigma (σ), the link plate entrance angle Beta (β), and other aspects of the meshing geometry are controlled and optimized to reduce noise and vibration by using a particular chain link plate form and, in preferred cases, by modifying the sprocket tooth pressure angle. The system can include first and second sprockets for which the pressure angle can be controlled to ensure that the desired values for the initial contact distance IC D , the meshing impact angle Sigma (σ), and the link plate entrance angle Beta (β) are equal for both sprockets even though the sprockets have different tooth counts. For a chain pitch P in the range of 6.35 mm to 8.0 mm, the initial contact distance IC D is controlled such that 0.49P≦IC D ≦0.53P, the meshing impact angle Sigma (σ) is controlled such that σ≦34°, and the link plate entrance angle Beta (β) is controlled such that β≦9°. For certain alternative chain and/or sprocket configurations, σ≦33° and β≦9°, or σ≦31° and β≦7°.

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Номер записи: 70

05-05-2016 дата публикации

Image Forming Apparatus

Номер: US20160123434A1

Автор: NAKANO Hiroshi, Takifuji Kotaro

Принадлежит:

An image forming apparatus including a belt wound around a plurality of rollers, and a restriction portion disposed outside a specific roller of the plurality of rollers in a rotational axis direction of the specific roller, the restriction portion being configured to restrict movement of the belt in the rotational axis direction by contacting an end surface of the belt in the rotational axis direction, the belt having a first outer circumferential surface of an end portion of the belt in the rotational axis direction, the end portion including the end surface contactable with the restriction portion, and a second outer circumferential surface of a middle portion of the belt in the rotational axis direction, the first outer circumferential surface being positioned outside the second outer circumferential surface in a radial direction of the specific roller, the first outer circumferential surface being parallel to the second outer circumferential surface. 1. An image forming apparatus comprising:a belt wound around a plurality of rollers; anda restriction portion disposed outside a specific roller of the plurality of rollers in a rotational axis direction of the specific roller, the restriction portion being configured to restrict movement of the belt in the rotational axis direction by contacting an end surface of the belt in the rotational axis direction, a first outer circumferential surface of an end portion of the belt in the rotational axis direction, the end portion including the end surface contactable with the restriction portion; and', 'a second outer circumferential surface of a middle portion of the belt in the rotational axis direction, the first outer circumferential surface being positioned outside the second outer circumferential surface in a radial direction of the specific roller, the first outer circumferential surface being parallel to the second outer circumferential surface., 'wherein the belt has2. The image forming apparatus according to ...

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Номер записи: 71

05-05-2016 дата публикации

Isolator with double acting spring system with reduced noise

Номер: US20160123453A1

Автор: Andrew M. Boyes, Boris REPLETE, John Antchak, Vladimir I. STARODOUBOV

Принадлежит: LITENS AUTOMOTIVE PARTNERSHIP

An isolator is provided for use with an engine and in particular an engine that is assisted or started by MGU (Motor-Generator Unit) or a motor through an endless drive member. It comprises a double acting spring system for isolating crankshaft pulley from torsion vibration at the crankshaft, and in extreme conditions, such as during engine startup and accelerations or decelerations of the engine crankshaft relative to the pulley and when isolator operates in an “engine-driven” mode with the engine crank shaft is driven by the belt.

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Номер записи: 72

04-05-2017 дата публикации

POWER TRANSMISSION DEVICE

Номер: US20170122384A1

Автор: HAYASHI Toshihiro, KISHIBUCHI Akira, KUSHIDA Youhei, Nakajima Hiroshi, OKUDA Kiyomi

Принадлежит: Denso Corporation

A power transmission device that transmits a rotational driving force outputted from a driving source to a target device to be driven includes: a driving rotor rotated by the rotational driving force; a driven rotor that rotates with a rotary shaft of the target device; and a connection member. The connection member has a plate shape extending perpendicular to the rotary shaft. The connection member is connected at least one of the driving rotor and the driven rotor, and is capable of connecting the driving rotor and the driven rotor to each other. The connection member has a through hole, and the driven rotor has an overlapping portion disposed overlapping with the through hole when viewed in the axial direction of the rotary shaft. 1. A power transmission device that transmits a rotational driving force outputted from a driving source to a target device to be driven , the power transmission device comprising:a driving rotor rotated by the rotational driving force;a driven rotor that rotates with a rotary shaft of the target device; anda connection member having a plate shape extending perpendicular to the rotary shaft, the connection member being connected at least one of the driving rotor and the driven rotor, and being capable of connecting the driving rotor and the driven rotor to each other, wherein:the connection member comprises a plate-like elastic member that is deformable in a rotational direction and an axial direction of the rotary shaft;the connection member has a through hole passing through the connection member in an axial direction of the rotary shaft; andthe driven rotor includes an inner hub having an overlapping portion disposed overlapping with the through hole when viewed in the axial direction of the rotary shaft.2. The power transmission device according to claim 1 , whereinthe plate-like elastic member absorbs a variation in a rotational torque transmitted from the driving rotor to the driven rotor when the connection member is connected to ...

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Номер записи: 73

04-05-2017 дата публикации

ISOLATING DECOUPLER

Номер: US20170122425A1

Автор: Langhorst Benjamin R., Schneider Dean, Serkh Alexander

Принадлежит:

An isolating decoupler comprising a hub for connection to a shaft, a pulley journalled to the hub, the pulley having a belt engaging surface, a composite spring having a clutch portion, a transition portion and a variable diameter portion, the composite spring engaged between the hub and the pulley, the clutch portion diameter reducible in a loading direction for a frictional engagement with the pulley in the loading direction, the frictional engagement of the clutch portion progressively releasable from the pulley in an unloading direction, the variable diameter portion having a diameter which varies according to a torque load; and an inertial member engaged with the hub through a damping member. 1. An isolating decoupler comprising:{'b': '11', 'a hub () for connection to a shaft;'}{'b': '16', 'a pulley () journalled to the hub, the pulley having a belt engaging surface;'}{'b': 12', '22', '23', '24, 'a composite spring () having a clutch portion (), a transition portion () and a variable diameter portion ();'}the composite spring engaged between the hub and the pulley, the clutch portion diameter reducible in a loading direction for a frictional engagement with the pulley in the loading direction;the frictional engagement of the clutch portion progressively releasable from the pulley in an unloading direction;the variable diameter portion having a diameter which varies according to a torque load; and{'b': 74', '75, 'an inertial member () engaged with the hub through a damping member ().'}2. The isolating decoupler as in claim 1 , wherein the damping member comprises elastomeric material.3. The isolating decoupler as in claim 1 , wherein the pulley is journalled to the hub on a bushing.4. The isolating decoupler as in claim 1 , wherein the clutch portion is loaded in the winding direction.5. The isolating decoupler as in claim 1 , wherein the composite spring comprises a torsion spring.6. The isolating decoupler as in claim 1 , wherein the pulley comprises a multi- ...

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Номер записи: 74

16-04-2020 дата публикации

Pulley with Line Guides

Номер: US20200115203A1

Автор: Hall David R., Webb Casey

Принадлежит: Hall Labs LLC

A pulley is disclosed. The disclosure provides a pulley. The pulley is made up of a frame and a wheel. The frame includes a first and second plate spaced apart from each other. The wheel is rotatably connected between the first and second plate. The first and second plate each include an extended portion extending in a common direction beyond the radius of the wheel. The extended portion of the first and second plate each include a ramp for guiding a line onto the wheel. Also disclosed is a method for making the pulley. 1. A pulley comprising;a frame comprising a first and second plate spaced apart from each other,a wheel rotatably connected between the first and second plate,and wherein the first and second plate each comprise an extended portion extending in a common direction beyond the radius of the wheel; andwherein the extended portion of the first and second plate each comprise a ramp for guiding a line onto the wheel.2. The pulley of claim 1 , wherein the sides are connected by a bridging member.3. The pulley of claim 2 , wherein the sides and bridging member are formed from a single piece of material.4. The pulley of claim 3 , wherein the material is metal and wherein the ramps are stamped into the extended portions.5. The pulley of claim 4 , wherein the first and second plate and the bridging member are formed by bending a single sheet of metal.6. The pulley of claim 5 , wherein the first and second side plate each form a hook.7. The pulley of claim 6 , further comprising a protective coating claim 6 , covering at least a portion of the frame.8. The pulley of claim 7 , wherein the hooks are covered with a slip-resistant coating.9. The pulley of claim 3 , wherein the material is plastic.10. The pulley of claim 1 , wherein the wheel includes center spindles on each side that journal within holes in the first and second side plate.11. The pulley of claim 1 , further comprising an axle upon which the wheel rotates claim 1 , which axle is attached to the first ...

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Номер записи: 75

27-05-2021 дата публикации

SUPER CHARGER COMPONENTS

Номер: US20210156463A1

Автор: Zimmer Andrew Jason

Принадлежит:

A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam. 1. (canceled)2. A pulley for transmitting rotational motion between first and second rotating shafts with a belt , the pulley being fixed to the first rotating shaft , the pulley comprising:a pulley body defining a belt engaging surface mountable onto the first rotating shaft; and wherein the laser induced friction surface comprises a plurality of vaporized kerfs formed in a pattern on the belt engaging surface, and', 'wherein recast material having a plurality of peaks and valleys deposited at the plurality of vaporized kerfs., 'a laser induced friction surface formed on the belt engaging surface,'}3. The pulley of wherein the kerfs are grooves.4. The pulley of wherein the pulley body is a drum.5. The pulley of wherein the pulley body has a V belt groove.6. The pulley of wherein the laser induced friction surface is formed solely on the laser induced friction surface.7. A pulley for transmitting rotational motion between first and second rotating shafts with a belt on an engine claim 2 , the pulley being fixed to the first rotating shaft claim 2 , the pulley comprising: the cylindrical central hole defining a central axis about which the body rotates,', 'the body having at least one belt groove formed circumferentially about the central axis for receiving the belt,', 'the body fabricated from a metallic material, the at least one belt groove defining a belt engaging surface; and, 'a body having a cylindrical central hole for receiving the first rotating shaft and mounting the body onto the first rotating shaft on the engine,'}a ...

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Номер записи: 76

11-05-2017 дата публикации

ASYMMETRIC AND STEERED SHEAVES FOR TWISTED MULTI-BELT ELEVATOR SYSTEMS

Номер: US20170129743A1

Автор: Githens Alan Stover, Lotfi Amir

Принадлежит:

An elevator system includes an elevator car located in a hoistway. One or more belts are operably connected to the elevator car to drive and/or support the elevator car along the hoistway. The one or more belts are routed over one or more sheaves. The one or more sheaves include an outer surface rotatable about a central axis and a flange located at at least one lateral end of the sheave. The sheave further includes a tracking compensator to limit lateral motion of the belt along the outer surface to prevent the belt from contacting the flange. 2. The elevator system of claim 1 , wherein the sheave angle is configured to normalize a stress distribution on the belts.3. The elevator system of claim 1 , wherein the first sheave and the second sheave are located at a steered shaft.4. The elevator system of claim 1 , wherein the two or more belts twist and draw between a first sheave group and a second sheave group.5. The elevator system of claim 4 , wherein a draw angle of a first belt of the two or more belts is equal to a draw angle of a second belt of the two or more belts.6. The elevator system of claim 1 , wherein the sheave angle is between 1 degree and 10 degrees.7. The elevator system of claim 1 , further comprising an asymmetrical crown on the outer surface of at least one sheave of the two or more sheaves.8. The elevator system of claim 1 , wherein the belt travels at substantially a lateral center of the sheave.9. An elevator system comprising:an elevator car disposed in a hoistway;two or more belts operably connected to the elevator car to drive and/or support the elevator car along the hoistway; and an outer surface rotatable about a central axis; and', 'a flange disposed at at least one lateral end of the sheave;, 'a plurality of sheave groups over which the two or more belts are routed, each sheave of a sheave group includingwherein a first central axis of a first sheave of the sheave group intersects a second central axis of a second sheave of the sheave ...

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Номер записи: 77

02-05-2019 дата публикации

Anti-rotation assembly

Номер: US20190128119A1

Автор: Nicholas Waters OREN, ROSS Wilson

Принадлежит: United Technologies Corp

An anti-rotation assembly may include a first shaft, a second shaft, and a locking sprocket. The first shaft may have a first crenelated end rim, the second shaft may have a second crenelated end rim, and the locking sprocket may be configured to engage the first crenelated end rim and the second crenelated end rim to anti-rotatably couple the first shaft to the second shaft. That is, the locking sprocket may be configured to prevent relative rotation between the two shafts. The anti-rotation assembly may further include an axial retaining ring configured to axially retain the locking sprocket.

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Номер записи: 78

21-05-2015 дата публикации

DAMPENING ASSEMBLY AND RELATED METHOD OF MAKING SAME

Номер: US20150141182A1

Автор: Cooper Donald P., Mandel Joel H., Mohr John P.

Принадлежит:

An assembly comprising: a powder metal outer part () having a radially inward 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 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 () 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 () 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. 1. An assembly comprising:a powder metal outer part having a radially inward 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 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 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; andan intermediate component 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.2. The ...

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Номер записи: 79

19-05-2016 дата публикации

Spring assembly for isolator

Номер: US20160138699A1

Автор: James W. Dell

Принадлежит: LITENS AUTOMOTIVE PARTNERSHIP

In an aspect, a spring assembly is provided for an isolator, and includes first and second helical compression springs, a retainer and a spring housing. The first helical compression spring has a central aperture and has a first end and a second end. The second helical compression spring having a central aperture and having a first end and a second end, wherein the second spring is coaxial with and nested within the first spring. The retainer has a base and a post that extends from the base into the central aperture at the first end of the second helical spring. The spring housing that has an interior space in which the first and second springs are positioned, and further includes a base-engaging aperture that holds the base of the retainer. The spring housing includes a drive wall that is engaged with the first ends of the first and second springs.

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Номер записи: 80

19-05-2016 дата публикации

BELT PULLEY ARRANGMENT

Номер: US20160138700A1

Автор: Hauck Christian

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A belt pulley arrangement with a belt pulley that is fastenable to rotate on a shaft, a torsion spring arranged within the belt pulley for enabling a transmission of torque between the belt pulley and shaft. The torsion spring acts with one end against the shaft and with an other end against the belt pulley. A looped flat spiral spring is arranged radially between the belt pulley and the torsion spring and acting as a free-running clutch. The torsion spring is arranged on one of its axial ends in a first sleeve that is connected so that it can rotate with a radial inner lateral surface of the belt pulley. The looped flat spiral spring is arranged radially between the first sleeve and the torsion spring, and contacts, in its extended state, at least in some sections on the inner lateral surfaces of the first sleeve and belt pulley. 1. A belt pulley arrangement comprisinga belt pulley that is fastenable to rotate on a shaft,a torsion spring arranged within the belt pulley that transmits torque between the belt pulley and shaft, the torsion spring having a with first end that act against the shaft and a second end that acts against the belt pulley,a looped flat spiral spring arranged radially between the belt pulley and the torsion spring that acts as a free-running clutch,the first end of the torsion spring is arranged in a first sleeve, and the first sleeve is connected to rotate with a radial inner lateral surface of the belt pulley, and the looped flat spiral spring is arranged radially between the first sleeve and torsion spring, the looped flat spiral spring is movable to an expanded state in which, at least in some sections, the spiral spring contacts the inner lateral surfaces of the first sleeve and belt pulley.2. The belt pulley arrangement according to claim 1 , wherein the second end of the torsion spring is arranged in a second sleeve claim 1 , and the second sleeve is connectable locked in rotation with the shaft.3. The belt pulley arrangement according ...

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Номер записи: 81

18-05-2017 дата публикации

TORSIONAL VIBRATION DAMPER AND TORSIONAL VIBRATION DAMPER SYSTEM

Номер: US20170138405A1

Автор: Gebhart Manfred, Grischin Alexander

Принадлежит: Kendrion (Markdorf) GmbH

A device () for transmitting torque for driving an auxiliary unit, in particular an alternator, preferably in a motor vehicle, and for damping torsional vibrations, said device comprising driving means () that can be driven about an axis of rotation () by an internal combustion engine, and output drive means () rotatable about the axis of rotation () that are arranged and designed for driving the auxiliary unit, wherein at least one axial front face of the driving means () and/or of the output drive means () carries permanent magnet means ( ) which allow torques to be transmitted between the driving means () and the output drive means () and which allow torsional vibrations to be dampened, the poles () of the permanent magnet means () being arranged in at least one radial plane, characterized in that the permanent magnet means () comprise a plurality of permanent magnet elements () arranged next to each other in the circumferential direction, these permanent magnets () adjoining each other, in particular being directly in contact or fixed to each other via an adhesive layer of less than 2 mm thickness, and/or that the permanent magnet means () comprise at least one shaped part made of plastic, in particular an injection-moulded part made of plastic and/or a shaped part made of a sintered material, and/or the permanent magnet means () are arranged on a geometrical, preferably concentric annular orbit, which deviates from a concentric circular orbit, preferably an elliptic orbital (). 11243423101123131415161011. A device () for transmitting torque for driving an auxiliary unit , in particular an alternator and for damping torsional vibrations , said device comprising driving means () that can be driven about an axis of rotation () by an internal combustion engine , and output drive means () rotatable about the axis of rotation () that are arranged and designed for driving the auxiliary unit , wherein at least one axial front face of the driving means () and/or of the ...

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Номер записи: 82

18-05-2017 дата публикации

DAMPER PULLEY ASSEMBLY FOR VEHICLE

Номер: US20170138458A1

Автор: Lee Jae Kwon

Принадлежит:

A damper pulley assembly for a vehicle is provided and includes a crank shaft of an engine of the vehicle, a hub that is coupled to the crank shaft and configured to be rotated, a pulley that is coupled to an exterior surface of the hub and configured to be integrally rotated with the hub and an oil seal that is disposed between the hub and an interior of a cylinder block configured to prevent engine oil leakage in the cylinder block. The hub has an abrasion prevention component formed on an exterior circumference surface on which the oil seal is disposed, and the abrasion prevention component prevents separation of the oil seal. Thus, a friction coefficient of a portion where a contact with the oil seal is concentrated is reduced and abrasion of a shaft is reduced by applying an anti-abrasion coating to improve hardness. 1. A damper pulley assembly for a vehicle , comprising:a crank shaft of an engine of the vehicle;a hub coupled to the crank shaft to be rotated;a pulley coupled to an exterior surface of the hub and configured to rotate integrally with the hub; andan oil seal disposed between the hub and an interior of a cylinder block to prevent engine oil from being leaked in the cylinder block,wherein the hub has an abrasion prevention component formed on an exterior circumference surface on which the oil seal is disposed, and the abrasion prevention component prevents a separation of the oil seal.2. The damper pulley assembly according to claim 1 , wherein the hub includes:a hub body having a perforated center to which the crank shaft is insertedly coupled; anda hub ring protrudedly formed on an exterior surface of the hub body,wherein the abrasion prevention component is formed within the hub body.3. The damper pulley assembly according to claim 2 , wherein the oil seal is disposed between the hub body and the interior of the cylinder block.4. The damper pulley assembly according to claim 1 , wherein the abrasion prevention component includes a coating ...

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Номер записи: 83

09-05-2019 дата публикации

Sprocket and transmission mechanism

Номер: US20190136956A1

Автор: Kazuyuki Ebinuma, Tsuyoshi Kabai, Yuji Kurematsu

Принадлежит: Tsubakimoto Chain Co

Provided is a sprocket which suppresses generation of order sounds corresponding to cycles and prevents increase in tension fluctuations, noise, and vibrations caused by resonance while alleviating the influence of the tension fluctuations corresponding to load torque fluctuations and suppressing noise and vibrations. A plurality of teeth formed to engage with a chain are arranged to form a phase fluctuation pattern of a waveform having a phase which fluctuates between positive and negative sides, and the phase fluctuation pattern is set to have parts having different wavelengths.

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Номер записи: 84

26-05-2016 дата публикации

Isolator with improved damping structure

Номер: US20160146328A1

Автор: James W. Dell

Принадлежит: LITENS AUTOMOTIVE PARTNERSHIP

In an aspect, an isolator is provided for isolating torsional vibration between a crankshaft of an engine and an endless drive member. The isolator includes a driver drivable by the crankshaft, a pulley that is engageable with an endless drive member, at least one isolation spring that is positioned to transfer forces between the driver and the pulley and to isolate torsional vibrations in the driver and the pulley from one another, and a damping structure configured to frictionally resist relative movement between the driver and the pulley beyond a selected relative threshold angle, and to permit relative movement between the driver and the pulley within the selected relative threshold angle without frictional resistance from the damping structure.

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Номер записи: 85

24-05-2018 дата публикации

ISOLATION PULLEY WITH OVERRUNNING AND VIBRATION DAMPING CAPABILITIES

Номер: US20180142738A1

Автор: Antchak John R., Dell James W., Williams Warren J.

Принадлежит:

A decoupler having an input hub, an output member, a one-way clutch, and at least one isolation spring. Rotary power is transmitted in a predetermined rotational direction from the input hub, through the one-way clutch, through the isolation spring and to the output member. A method for forming a decoupler is also provided. 1. A method for forming a decoupler comprising:mounting a torsional isolating spring concentrically about a clutch spring of a one-way clutch, the one-way clutch being drivingly coupled to an input hub and configured to transmit rotary power between the input hub and the torsional isolating spring in a predetermined rotational direction; andbalancing the decoupler to a predetermined rotational imbalance such that the decoupler is rotationally imbalanced when no torsional load is carried by the decoupler and wherein the rotational imbalance of the decoupler decreases as a torsional load carried by the decoupler increases to a predetermined torsional load.2. The method of claim 1 , wherein prior to balancing the decoupler to a predetermined rotational imbalance claim 1 , the method comprises mounting a torsional vibration damper concentrically about the input hub.3. A decoupler comprising:an input hub;an output member;a one-way clutch; andat least one isolation spring;wherein rotary power is transmitted in a predetermined rotational direction from the input hub, through the one-way clutch, through the isolation spring and to the output member.4. The decoupler of claim 3 , wherein the one-way clutch comprises a clutch spring and a clutch output structure claim 3 , the clutch spring having a plurality of coils claim 3 , the clutch output structure having a clutch surface that is engaged by the coils of the clutch spring to transmit rotary power in the predetermined rotational direction.5. The decoupler of claim 4 , further comprising a seal system that is configured to seal a cavity into which the clutch spring is received claim 4 , and wherein a ...

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Номер записи: 86

02-06-2016 дата публикации

Torque filter having impact spring constant and auxiliary-machinery belt system using the same

Номер: US20160153519A1

Автор: Ki-Bong YOON

Принадлежит: Hyundai Motor Co

A torque filter having an impact spring constant includes a pair of left and right arc springs arranged at left and right sides and having spring constant values set based on a torque of a crank shaft which transfers a driving force of an engine as the torque. An impact spring is disposed in which the pair of the left and right arc springs face each other and has a spring constant value set with a threshold torque based on an instant speed change of the crank shaft.

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Номер записи: 87

02-06-2016 дата публикации

RADIALLY, AXIALLY, AND TORSIONALLY COMPLIANT SPROCKET

Номер: US20160153541A1

Автор: Crowley William, Fuchs Robert, MUTSCHLER Edward

Принадлежит:

A radially, axially, and torsionally compliant sprocket includes a rim including teeth thereon, a hub within the rim including a central bore, and a compliant open cell structure extending between the hub and the rim. 1. A radially , axially , and torsionally compliant sprocket comprising:a rim including teeth thereon;a hub within the rim including a central bore; anda compliant open cell structure extending between the hub and the rim.2. The sprocket of in which the rim includes inwardly extending fingers and the compliant open cell structure engages the inwardly extending fingers of the rim.3. The sprocket of in which the compliant open cell structure includes an elastromeric material over molded in the rim about the inwardly extending fingers.4. The sprocket of in which the elastromeric material includes rubber.5. The sprocket of in which the inwardly extending fingers of the rim each include at least one feature for locking the compliant open cell structure to each inwardly extending finger.6. The sprocket of in which the compliant open cell structure includes crossing members.7. The sprocket of in which the rim includes fiberglass material.8. The sprocket of in which the hub includes keyways extending outwardly from the central bore.9. The sprocket of in which the hub and compliant open cell structure are unitary in construction.10. The sprocket of in which the hub includes a molded body connected to the open cell structure and a hub reinforcement structure overmolded by the molded body.11. The sprocket of in which the reinforcement structure includes a socket extending outwardly.12. The sprocket of in which the socket includes a keyway therethrough.13. The sprocket of in which the reinforcement structure includes a cap attached to the socket encapsulated within the molded body.14. The sprocket of in which the cap includes orifices therethrough for overmolding.15. The sprocket of in which the molded body has a shore hardness of between 80-90 A.16. The sprocket ...

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Номер записи: 88

02-06-2016 дата публикации

Vibration damping device

Номер: US20160153542A1

Автор: Alexander Wick, Peter Faßbinder, Peter Wohlschlegel

Принадлежит: Vibracoustic SE

A vibration damping device for a belt drive of an internal combustion engine includes a belt pulley, a hub and a decoupling device. The decoupling device connects the belt pulley and the hub to each other, and has at least two spring members. The spring members can be connected in series.

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Номер записи: 89

15-09-2022 дата публикации

NOISE ABATEMENT STRUCTURE FOR SYSTEM FOR REDUCING TORSIONAL VIBRATION ON A ROTARY SHAFT

Номер: US20220290735A1

Автор: GIFF Christopher, HODGSON Geoffrey, LAWRENCE Geoffrey, SAMOILOV Vladmir

Принадлежит:

In an aspect, a system is provided for reducing torsional vibrations for an engine having a crankshaft. The system includes an isolation device, which includes a shaft adapter that is mounted to the crankshaft, a pulley that is rotatably mounted to the shaft adapter, and at least one isolation spring that resiliently transfers torque between the pulley and the shaft adapter. The system further includes a torsional vibration damper that is mountable to the crankshaft. A noise generation space extends axially between the isolation device and the torsional vibration damper. The system further includes a noise abatement ring that extends axially from one of the isolation device and the torsional vibration damper towards the other of the isolation device and the torsional vibration damper, and at least partially radially encloses at least a portion of the noise generation space. 1. A system for reducing torsional vibrations for an engine having a crankshaft , comprising:an isolation device mountable on the crankshaft, and which is rotatable thereon about an axis, wherein the isolation device includes a shaft adapter that is mounted to the crankshaft, a pulley that is rotatably mounted to the shaft adapter, and at least one isolation spring that resiliently transfers torque between the pulley and the shaft adapter;a torsional vibration damper that is mountable to the crankshaft, wherein a noise generation space extends axially between the isolation device and the torsional vibration damper; anda noise abatement ring that extends axially from one of the isolation device and the torsional vibration damper towards the other of the isolation device and the torsional vibration damper, and at least partially radially encloses at least a portion of the noise generation space, wherein the noise abatement ring extends to within 2 mm of the other of the isolation device and the torsional vibration damper.2. A system as claimed in claim 1 , wherein the noise abatement ring extends ...

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Номер записи: 90

11-06-2015 дата публикации

Chain drive unit

Номер: US20150158700A1

Автор: Hans-Martin Conrad

Принадлежит: Garaventa Liftech AG

A chain drive unit ( 4, 5, 6 ) for reducing chain vibrations comprising a chain wheel unit ( 43 ) with at least two sprockets ( 431, 432 ) that are arranged parallel on a common rotation axle, at least two parallel chains ( 51, 52 ) engaging these sprockets ( 431, 432 ). At least one damping element ( 6 ) connecting two adjoining chains ( 51, 52 ). The circumferential orientation of two adjoining sprockets ( 431, 432 ) differs by a partial pitch (pP) and the damping element ( 6 ) comprises a first fixation ( 61 ) on its one free end for the lateral fixation to the first chain ( 51 ), a second fixation ( 62 ) on its opposite free end for the lateral fixation to the second chain ( 52 ) and a force transmission unit ( 63, 8, 9 ) arranged between the first and the second fixation transmitting an applied force from the first fixation ( 61 ) to the second fixation ( 62 ) and vice versa.

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Номер записи: 91

07-05-2020 дата публикации

FILTERING PULLEY ASSEMBLY FOR A BELT DRIVE

Номер: US20200141451A1

Автор: AMADIO Stefano, ARMBRUST Markus, Cariccia Gianluca, CIPELLI Marco, ESPOSTO Daniele, GAUDE Ettore, GUALA Andrea, LUCIANI Gregorio

Принадлежит: DAYCO EUROPE S.R.L.

A filtering pulley assembly for an accessory drive of a vehicle has a hub fixedly attachable to a rotating shaft, a pulley mounted coaxial and freely rotating on said hub, an actuator disc carried by the hub, a plurality of elastic assemblies interposed between the pulley and the actuator disc, and a torque limiting coupling configured to rotationally connect the actuator disc to the hub, when the torque is below a predetermined threshold value, and to decouple the actuator disc from the hub, when the torque is above the threshold value. 1. A filtering pulley assembly for an accessory drive of a vehicle , comprising:a hub adapted to be fixed to a rotating shaft,a pulley mounted coaxial and freely rotating on said hub,an actuator disc carried by the hub,a plurality of elastic assemblies interposed between the pulley and the actuator disk, anda torque limiting coupling configured to rotationally connect the actuator disc to the hub, when the torque is below a predetermined threshold value, and to decouple the actuator disc from the hub, when the torque is above the threshold value.2. The pulley assembly according to claim 1 , wherein the torque limiting coupling comprises a driving element prismatically coupled to said hub claim 1 , a plurality of rolling bodies interposed between the driving element and the actuator disc claim 1 , and at least one preload means tending to maintain the rolling bodies engaged with the driving element and with the actuator disc claim 1 , at least one said preload means allowing disengagement of the rolling bodies from either the driving element or the actuator disc when said threshold value is exceeded.3. The pulley assembly as according to claim 1 , wherein the rolling bodies are balls interposed axially between the driving element and the actuator disc.4. The pulley assembly according to claim 3 , wherein said balls are partially housed in first seats in one of either said actuator disc and said driving element and cooperate with ...

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Номер записи: 92

18-06-2015 дата публикации

Coated sheave

Номер: US20150166307A1

Автор: Daniel V. Viens, David R. Polak, John P. Wesson, Xiaomei Yu, Yan Chen

Принадлежит: Otis Elevator Co

A method for applying a coating to a substrate includes obtaining a fluorinated polymer compound, where the fluorine is chemically or covalently bonded to the polymer molecule; and coating the surface of the substrate with the fluorinated polymer compound.

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Номер записи: 93

22-09-2022 дата публикации

DAMPED ISOLATION PULLEY HAVING AN ELECTRO-ADHESIVE CLUTCH

Номер: US20220299100A1

Автор: CHEVALIER Steven

Принадлежит:

A damped isolation pulley having a hub, a pulley disposed concentrically about the hub, an isolation spring, an inertia ring and an electro-adhesive clutch. The hub is configured to be mounted to a crankshaft of an internal combustion engine. The isolation spring is formed of an elastomeric material and couples the pulley to the hub. The inertia ring is resiliently coupled to the hub and is rotationally de-coupled from the pulley. The electro-adhesive clutch has a clutch input member that is coupled to the pulley and can be operated to form an alternate torque path between the pulley and the hub that does not include the isolation spring. 1. A damped isolation pulley comprising:a hub that is adapted to be mounted to a crankshaft of an internal combustion engine;a pulley disposed concentrically about the hub;an isolation spring coupling the pulley to the hub;a torsional vibration damper rotationally coupled to the hub and rotationally decoupled from the pulley; andan electro-adhesive clutch having a clutch input member that is coupled to the pulley, the electro-adhesive clutch being selectively operable for forming an alternate torque path between the pulley and the hub that does not include the isolation spring.2. The damped isolation pulley of claim 1 , wherein the electro-adhesive clutch has a clutch output member that is coupled to the torsional vibration damper.3. The damped isolation pulley of claim 2 , wherein the torsional vibration damper includes an inertia ring and wherein the clutch output member is fixedly coupled to the inertia ring.4. The damped isolation pulley of claim 1 , wherein the torsional vibration damper comprises an inertia ring and a spring element that couples the inertia ring to the hub.5. The damped isolation pulley of claim 4 , wherein the spring element comprises at least one elastomeric element.6. The damped isolation pulley of claim 1 , wherein the electro-adhesive clutch comprises a plurality of sets of discrete electro-adhesive ...

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Номер записи: 94

16-06-2016 дата публикации

ONE-PIECE INERTIA RING FOR A HARMONIC DAMPER

Номер: US20160169362A1

Автор: Vukojicic Dejan

Принадлежит:

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.

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Номер записи: 95

14-06-2018 дата публикации

IMPROVED ISOLATION DEVICE

Номер: US20180163788A1

Автор: Dell James W.

Принадлежит:

In an aspect an isolation device is provided, comprising a hub that is connectable to a shaft; a pulley that is rotatable relative to the hub; at least one isolation spring positioned to transfer torque between the hub and the pulley, wherein each of the at least one isolation spring is an arcuate helical compression spring having an isolation spring axis that is arcuate; and a spring shell that is monolithic and that receives the at least one isolation spring and transfers torque between the at least one isolation spring and the pulley. The spring shell surrounds more than 180 degrees of the at least one isolation spring in a plane that is perpendicular to the isolation spring axis. 1. An isolation device for engagement between a shaft of a rotating member and an endless drive member , comprising:a hub that is mountable to the shaft of the rotating member;a pulley that is configured to engage the endless drive member;at least one isolation spring that transfers torque between the hub and the pulley; anda damping member that cooperates with the pulley to define a fluid chamber having an outlet, wherein the damping member has at least one damping member projection and the pulley has at least one pulley projection thereon, wherein the at least one damping member cooperates with the pulley projection to at least in part determine a size of a flow restriction to fluid flow from the fluid chamber, and determine a size of the fluid chamber,wherein movement of the pulley and hub relative to one another in at least one direction causes movement of the at least one damping member projection and the at least one pulley projection towards each other so as to reduce the size of the flow restriction, and also reduces the size of the fluid chamber so as to cause fluid to flow through the flow restriction and out of the fluid chamber.2. An isolation device as claimed in claim 1 , wherein the at least one isolation spring is at least one helical compression spring and wherein the ...

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Номер записи: 96

30-05-2019 дата публикации

ROTATION TRANSMISSION MECHANISM, BICYCLE PROVIDED WITH ROTATION TRANSMISSION MECHANISM, AND ELASTICALLY-DEFORMABLE BODY USED IN ROTATION TRANSMISSION MECHANISM

Номер: US20190162287A1

Автор: HAMAMOTO YOICHIRO

Принадлежит:

The present invention provides a rotation transmission mechanism including an internal rotation member and an external rotation member rotatably arranged with respect to the internal rotation member. The internal rotation member has one or a plurality of outer-peripheral-projected portions protruding toward an outer-peripheral side. The external rotation member has one or a plurality of inner-peripheral-projected portions. The outer-peripheral-projected portions have a forward-movement surface located at a position displaced from a center of the outer-peripheral-projected portion in a forward movement direction in which the rotation transmission mechanism rotates by forward movement. An elastically-deformable portion is disposed between the forward-movement surface and the inner-peripheral-projected portion. A space is partially formed in the elastically-deformable portion. When the internal rotation member rotates relative to the external rotation member, the elastically-deformable portion is sandwiched between the outer-peripheral-projected portion and the inner-peripheral-projected portion and is thereby elastically deformed. 1. A rotation transmission mechanism comprising:an internal rotation member into which a rotation shaft is inserted; andan external rotation member rotatably arranged with respect to the internal rotation member,wherein the internal rotation member comprises: a disk-shaped internal rotation member main body having a rotation shaft insertion hole; and one or a plurality of outer-peripheral projected portions which are formed integrally with the internal rotation member main body or fixed to the internal rotation member main body and protrude toward an outer-peripheral side of the internal rotation member main body,wherein the external rotation member comprises: a circular ring rotatably arranged with respect to the internal rotation member and at an outside of the outer-peripheral projected portions of the internal rotation member; and one or ...

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Номер записи: 97

21-05-2020 дата публикации

Floating Drive System and its Floating Drive Disc and Floating Flywheel

Номер: US20200158225A1

Автор: WANG YUNG-SHENG

Принадлежит:

A floating drive system includes a floating disc and a floating flywheel, when the chain is offset on the floating flywheel, the floating disc is yawed on each sleeved disc axle, and the floating flywheel is yawed on the sleeved flywheel axle to maintain the linear offset of the chain. 1. A floating drive system comprising:a floating disc, comprising a crank, a plurality of disc axles around the outer ring of the crank, a fluted disc connected to the outer ring of the crank, inside of the fluted disc is provided with a plurality of the disc axle sleeves respectively sleeved on outside of the disc axles;a floating flywheel, comprising an axle hole and a ratchet seat disposed in the axle hole, outside of the ratchet seat is provided with a flywheel axle integrated or separated from the ratchet seat, a curved surface is formed on the outside of the flywheel axle, the outside of the flywheel axle is sleeved on a flywheel axle sleeve, the flywheel axle sleeve contacts the curved surface, and a yaw space is formed between two sides of the flywheel axle sleeve and two sides of the curved surface;wherein, when a chain is offset on the floating flywheel, the floating disc is yawed on each sleeved disc axle, and the floating flywheel is yawed on the sleeved flywheel axle to maintain the chain in linear offset.2. The floating drive system as claimed in claim 1 , wherein the disc axle includes a through hole claim 1 , and the floating disc includes an upper cover fixed to each disc axle.3. The floating drive system as claimed in claim 1 , wherein the floating flywheel includes a plurality of fixed pins claim 1 , each fixed pin ring array is locked to the outer ring of the flywheel axle sleeve and the outer ring of the flywheel axle.4. The floating drive system as claimed in claim 1 , wherein the floating flywheel includes a flywheel cover covered on the flywheel axle sleeve.5. The floating drive system as claimed in claim 1 , wherein the floating flywheel includes a flywheel ...

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Номер записи: 98

01-07-2021 дата публикации

Pulley Structure

Номер: US20210199186A1

Автор: Ilo Norihisa

Принадлежит: MITSUBOSHI BELTING LTD.

A pulley structure includes: a cylindrical outer rotation body; an inner rotation body; and a torsion coil spring. The torsion coil spring includes: one end region which is in contact with one rotation body; the other end region which is in contact with the other rotation body; and a middle region. The other rotation body includes: a first contact surface; a facing surface; an inclined surface; and a second contact surface. The facing surface includes a constraining surface connected to the inclined surface. The constraining surface is configured to be capable of constraining the other end region of the torsion coil spring before press fitting so as to prevent a displacement of an axis of the torsion coil spring before the press fitting with respect to an axis of the other rotation body. 1. A pulley structure comprising:a cylindrical outer rotation body around which a belt is to be wound;an inner rotation body which is provided inward of the outer rotation body and relatively rotatable with respect to the outer rotation body about a same rotation axis as the outer rotation body; anda torsion coil spring which is provided between the outer rotation body and the inner rotation body,wherein the torsion coil spring comprises:one end region which is on one end side in an axial direction along the rotation axis and in contact with one rotation body of the outer rotation body and the inner rotation body;the other end region which is on the other end side in the axial direction and in contact with the other rotation body of the outer rotation body and the inner rotation body; anda middle region which is between the one end region and the other end region and not in contact with the outer rotation body nor the inner rotation body in a state where no external force is applied to the pulley structure,wherein the other rotation body comprises:a first contact surface which is in contact with an inner circumferential surface of the other end region of the torsion coil spring in ...

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Номер записи: 99

02-07-2015 дата публикации

Pulley structure

Номер: US20150184703A1

Автор: Hayato Shimamura, Katsuya Imai, Makoto Haraguchi, Ryosuke Dan

Принадлежит: Mitsuboshi Belting Ltd

The present invention relates to a pulley structure containing a first rotatable body, a second rotatable body and a torsional coil spring, in which the torsional coil spring has one end region, the outer circumferential surface of which is in contact with one rotatable body due to the self elastic restoring force when the pulley structure is in a stopped state, the other end region, the inner circumferential surface of which is in contact with the other rotatable body when the pulley structure is in the stopped state, and a middle region, and in which when the torsional coil spring is twisted in the diameter increasing direction, the inner circumferential surface of at least a circumferential portion of the other end region of the torsional coil spring separates from the other rotatable body.

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Номер записи: 100