• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    INSULATING DISCoupler An insulating uncoupler comprising a hub, a track clutch engaged with the hub, a pulley rotationally engaged with the hub, a spring operatively engaged with a track clutch and the pulley, and a member of inertia engaged with the hub through an elastomeric member, the inertia member substantially disposed within a width of the pulley, the movable inertia member independently of the pulley.
    公开号:BR112013011700B1
    申请号:R112013011700-1
    申请日:2012-01-20
    公开日:2021-03-09
    发明作者:John Harvey
    申请人:The Gates Corporation；
    IPC主号:
    专利说明:

    Field of the Invention
    [001] The invention relates to an insulating uncoupler, and more particularly, to an insulating uncoupler having a one-way clutch and an inertia member connected to the hub, all contained in a pulley width. Background of the Invention
    [002] Vehicle internal combustion engines typically comprise an accessory drive driven by a front end belt. Accessories may include power supply, an alternator, water pump and so on. The accessory drive can also be referred to as a serpentine drive since the belt often traces a circuitous path around the front plane of an engine.
    [003] A typical serpentine steering system includes a drive pulley on the crankshaft of an internal combustion engine in the vehicle, a series of drive pulleys for accessories and an enabled V-belt around drive pulleys An advantage of the serpentine drive is that through the provision of an automatic belt tensioner on the belt, the accessories can be fixedly mounted.
    [004] It is also known to provide an uncoupling assembly between the belt drive accessory and the pulley to allow the belt drive accessory to temporarily operate at a higher speed or “super-run” of the pulley when the pulley oscillates with engine speed.
    [005] It is known that alternator pulley may contain one-way clutch, resilient member, or both, one-way clutch and resilient member. It is also known that the same approach can be used for crankshaft pulley. In the latter case, not only the alternator inertia will be isolated from the belt drive, but the inertia of all accessories. At the same time the torque requirement is substantially higher as well as challenges for all other elements of the crankshaft insulator.
    [006] For a crankshaft insulator without a decoupling characteristic, the spring stiffness is chosen so that the torsional vibration present in the crankshaft nose is attenuated by its elastic element and it is avoided that this bias affects ABDS in a negative way. Although beneficial during engine operation, the presence of the device on the crankshaft during startup and shutdown can present challenges. Due to the spring stiffness being such that the natural frequency of the first system is below stopped, during starting, the engine RPM passes through this natural frequency causing exaggerated relative movement between the device and hub pulley. This causes major deformations of the elastic element and can result in fatigue fractures and catastrophic failure. This failure can be avoided by using stop (s) between the pulley and the hub that limits the path of the elastic element. However, the stops must be placed and designed correctly to avoid questionable noise during the engine operation starting base.
    [007] Representative of this technique is patent 6 044 943, which shows a crankshaft decoupler that has a mounting hub, a pulley rotatorily mounted on the mounting hub, an annular conveyor mounted inside said pulley, a bypass device mounted between the same, and a clutch is a track mounted between the annular conveyor and the pulley. The bypass device dampens the belt transmission from crankshaft impulses and decreases the angular resonant frequency of the belt system. The one-way clutch avoids sudden reversal of the belt tension in the drive due to engine start / stop or sudden engine deceleration and avoids momentary reverse sliding belt screeching as a result of inadequate tensioner output to the reverse mode. A one-way clutch limits the maximum amount of torque that can be transmitted, preventing belt slippage during momentary overload.
    [008] What is needed is an insulating decoupler having a one-way clutch and an inertia member connected to the hub, all contained within a pulley width. The present invention satisfies this need. Summary of the Invention
    [009] The primary aspect of the invention is an insulating decoupler having a one-way clutch and an inertia member connected to the hub, all contained within a pulley width.
    [010] Other aspects of the invention will be highlighted or made obvious through the following description of the invention and accompanying drawings.
    [011] The invention comprises an insulating decoupler comprising a hub, a one-way clutch engaged with the hub, a pulley rotationally engaged with the hub, a spring operably engaged between a one-way clutch and the pulley, and a member of inertia engaged with the hub through an elastomeric member, the inertia member substantially disposed within a width of the pulley, the inertia member being movable independently of the pulley. Brief Description of Drawings
    [012] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate preferred embodiments of the present invention, and together with a description, serve to explain the principles of the invention.
    [013] Figure 1 is a cross section of the device.
    [014] Figure 2 is an exploded view of the device.
    [015] Figure 3 is an exploded cross-sectional view of the device. Detailed Description of the Preferred Realization
    [016] Figure 1 is a cross section of the device. The insulating decoupler comprises a hub 10. Hub 10 can be mounted for an axis such as a crankshaft or accessory drive shaft (not shown).
    [017] A one-way clutch 20 is mounted for hub 10. One-way clutch 20 is typically adapted with pressure on the clutch carrier 30. Clutch 20 engages a hub 10.
    [018] A first end of the torsion spring 40 is connected to the clutch conveyor 30. The second end of the torsion spring 40 is connected to a pulley support member 50.
    [019] Pulley 70 is mounted for pulley support 50 and pulley support 60. Pulley 70 comprises a belt engagement surface 71.
    [020] Elastomeric ring 80 is connected to hub 10. Inertia ring 90 is connected to elastomeric ring 80. The inertia ring combined with the elastomeric ring dampens crankshaft oscillations and vibrations caused during engine operation. Elastomeric ring 80 is securely fixed between inertia ring 90 and hub 10 using known adhesives, or mechanical or pressing adaptation.
    [021] Pulley assembly 50, 60, 60 is rotationally mobile with respect to hub 10 on each bearing 110, 120. Inertia ring 90 moves independently of the pulley assembly 50, 60, 70.
    [022] Bearings 110,120 may comprise ball bearings or any other suitable bearing known in the art.
    [023] All components of the devices are contained in an envelope axially defined by the pulley support 50 and pulley support 60, and radially defined by the pulley 70.
    [024] Figure 2 is an exploded view of the device. A plane P2 intersects the circumference of the ring of inertia 90. A plane P1 intersects the circumference of the pulley 70. In the assembled device the plane P1 is coplanar with plane P2, therefore, the ring of inertia 90 is radially aligned with the pulley 70 with respect to the axis of rotation AA. Spring 40 is contained in an axial length of the hub 10 between each pulley support 50 and pulley support 60.
    [025] Figure 3 is an exploded cross-sectional view of the device. Spring 40, one-way clutch 20 and clutch conveyor 30 are each contained in a receiving portion 11 of hub 10. Elastomeric ring 80 is engaged with the outer member of hub 12.
    [026] In operation, the inertia member 90 and elastomeric ring 80 absorb and dampen crankshaft torsional vibrations, thus preventing the vibrations from applying high loads to the crankshaft and or affecting the belt drive system. The one-way clutch decoupling feature allows inertia components of the belt drive system to temporarily overflow the crankshaft during periods of rapid engine deceleration. The device combines the decoupling characteristic and the insulating characteristic in a compact package that can be used on an engine crankshaft in confined spaces.
    [027] Although a form of the invention has been described here, it will be obvious to those skilled in the art that variations in the construction and relationship of parts can be made without departing from the spirit and scope of the invention described here.c
    权利要求:
    Claims (5)
    [0001]
    1. Insulating decoupler CHARACTERIZED by the fact that it comprises: a cube (10); a one-way clutch (20) engaged with the hub (10); a pulley (70) rotationally engaged with the hub (10) on a first ball bearing (110) and a second ball bearing (120); a spring (40) operably engaged between a one-way clutch (20) and the pulley (70); and an inertia member (90) engaged with the hub (10) through an elastomeric member (80), the inertia member (90) arranged within an envelope comprising the pulley (70) and a first pulley support (50 ) engaged with the first ball bearing (110) and a second pulley support (60) engaged with the second ball bearing (120), the inertia member (90) movable independently from the pulley (70).
    [0002]
    2. Insulating decoupler, according to claim 1, CHARACTERIZED by the fact that it still comprises a carrier member disposed between the spring (40) and the one-way clutch (20).
    [0003]
    3. Insulating decoupler, according to claim 1 or 2, CHARACTERIZED by the fact that the inertia member (90) is substantially coplanar with the pulley (70).
    [0004]
    4. Insulating decoupler CHARACTERIZED by the fact that it comprises: a cube (10); a one-way clutch (20) engaged with the hub (10); a pulley (70) rotationally engaged with the hub (10) through a first pulley support (50) and a second pulley support (60); a spring (40) operably engaged between a one-way clutch (20) and the first pulley support (50); a carrier member disposed between the spring (40) and the one-way clutch (20); and an inertia member (90) engaged with the hub (10) via an elastomeric member, the inertia member (90) substantially arranged within a width of the pulley (70) and the inertia member (90) is substantially coplanar with the pulley (70), the inertia member (90) movable independently of the pulley.
    [0005]
    5. Insulating decoupler, according to claim 4, CHARACTERIZED by the fact that it also comprises a first ball bearing (110) between the hub (10) and the first pulley support (50) and a second ball bearing (120 ) between the hub (10) and the second pulley support (60).
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    JP4883401B2|2006-09-28|2012-02-22|株式会社ジェイテクト|Pulley unit|
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    CN102959262B|2010-06-25|2016-01-20|利滕斯汽车合伙公司|There is the isolation belt wheel of the ability of surmounting and vibration damping ability|US20120322592A1|2011-04-11|2012-12-20|Zen Sa Industria Metalurgica|Overrunning pulley with elastomer torsional damping system|
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    KR101500138B1|2013-09-10|2015-03-06|현대자동차주식회사|Decoupling device of crank pully|
    US9169914B2|2014-03-07|2015-10-27|Gates Corporation|Isolating decoupler|
    US9476497B2|2014-04-23|2016-10-25|Ningbo Yangtong Automobile Parts Co., Ltd|Unidirectional clutch decoupling device for transferring torque between belt wheel and shaft|
    EP3152458B1|2014-06-09|2021-01-13|Dayco IP Holdings, LLC|Torsional vibration damper with an interlocked isolator|
    US10030757B2|2014-07-01|2018-07-24|Dayco Ip Holdings, Llc|Torsional vibration damper with an interlocked isolator|
    TWI555932B|2014-07-14|2016-11-01|勝利工業股份有限公司|Pulley for an alternator|
    TWI551795B|2014-07-14|2016-10-01|勝利工業股份有限公司|Pulley for an alternator|
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    WO2016043756A1|2014-09-18|2016-03-24|Metaldyne, Llc|Transmission damper|
    EP3209902A4|2014-10-20|2018-05-30|Litens Automotive Partnership|Endless drive arrangement with tensioning system and isolation device|
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    CN107208691B|2015-01-16|2020-06-23|戴科知识产权控股有限责任公司|Torsional damper, elastomeric member therefor, and method of making same|
    US9291253B1|2015-03-24|2016-03-22|Gates Corporation|Isolating decoupler|
    US9797469B1|2016-05-13|2017-10-24|Gates Corporation|Isolating decoupler|
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    CN108518190B|2018-03-30|2019-03-22|东北石油大学|Fluid power-Magnetic drive borehole cleaning tool overload decoupling device|
    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-06-16| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-01-05| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-09| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/01/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/931,061|2011-01-24|
    US12/931,061|US8506434B2|2011-01-24|2011-01-24|Isolating decoupler|
    PCT/US2012/021956|WO2012102946A1|2011-01-24|2012-01-20|Isolating decoupler|
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