WO2016091259A1 - Volant bi-masse comportant un flasque de moyeu monopièce - Google Patents

Volant bi-masse comportant un flasque de moyeu monopièce Download PDF

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Publication number
WO2016091259A1
WO2016091259A1 PCT/DE2015/200535 DE2015200535W WO2016091259A1 WO 2016091259 A1 WO2016091259 A1 WO 2016091259A1 DE 2015200535 W DE2015200535 W DE 2015200535W WO 2016091259 A1 WO2016091259 A1 WO 2016091259A1
Authority
WO
WIPO (PCT)
Prior art keywords
dual
mass
hub flange
mass flywheel
primary
Prior art date
Application number
PCT/DE2015/200535
Other languages
German (de)
English (en)
Inventor
Jacques Kaglan
Hartmut Mende
Original Assignee
Schaeffler Technologies AG & Co. KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to EP15832796.5A priority Critical patent/EP3230620A1/fr
Priority to CN201580066959.8A priority patent/CN107002815B/zh
Priority to DE112015005550.9T priority patent/DE112015005550A5/de
Publication of WO2016091259A1 publication Critical patent/WO2016091259A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2226/00—Manufacturing; Treatments
    • F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
    • F16F2226/047—Sheet-metal stamping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Definitions

  • the invention relates to a dual mass flywheel with a primary mass and a secondary mass, which are rotatable relative to each other against the force of an energy storage device, and a hub flange for use in such
  • Dual mass flywheels are known from the prior art, for example from DE 41 17 582 A1. Such dual mass flywheels are called
  • Vibration damper used for torsional vibrations in drive trains of motor vehicles wherein the dual mass flywheel is usually arranged between the crankshaft of a motor vehicle driving the internal combustion engine and a gearbox upstream vehicle clutch.
  • the dual mass flywheel is usually arranged between the crankshaft of a motor vehicle driving the internal combustion engine and a gearbox upstream vehicle clutch.
  • the spring force is effected by bow springs, which are supported on the primary side and on the other side on the secondary side.
  • the support is carried out on the primary side via projecting into a spring receiving space supporting elements and secondary side
  • the secondary flange is usually riveted to an output flange.
  • Vehicle coupling is in particular a receiving bore with a
  • the dual mass flywheel in one embodiment of the invention, includes a seal diaphragm disposed between the primary flywheel mass cover of the primary mass and the hub flange.
  • the sealing membrane is part of a
  • Sealing arrangement for sealing an enclosed space with a
  • Receptacle arranged centrifugal pendulum against the environment.
  • the bow springs and the centrifugal pendulum can be operated wet (with lubricant wetting).
  • the hub flange is firmly connected in one embodiment of the invention with the sealing membrane, in particular riveted.
  • the sealing membrane (disc spring diaphragm) is pre-riveted to the hub flange or loosely inserted.
  • the dual-mass flywheel in one embodiment of the invention comprises a sealing ring which is arranged between a primary flywheel mass plate of the primary mass and the hub flange.
  • the sealing ring is like the sealing membrane part of the seal assembly for sealing the enclosed space.
  • the sealing ring is arranged radially outside a hole circle of the crankshaft screw connection. As a result, a complete seal of the enclosed space is effected in a particularly simple manner.
  • On the hub flange in one embodiment of the invention is a
  • Centrifugal pendulum assembly arranged.
  • the centrifugal pendulum assembly includes multiple centrifugal pendulums and improves vibration damping.
  • the bow spring assembly and / or the centrifugal pendulum assembly are arranged in an embodiment of the invention in an outwardly sealed enclosed space.
  • Parts of the hub flange are hardened in one embodiment of the invention.
  • case hardening inductive hardening or tempering can be used here.
  • the entire hub flange or in particular the centrifugal pendulum webs and / or the flange and / or the splines are hardened.
  • the spline can also be nickel plated.
  • Fig. 1 shows a first embodiment of an inventive
  • FIG. 2 shows a second embodiment of an inventive
  • FIG. 1 shows a dual mass flywheel 1 with a secondary side centrifugal pendulum.
  • Dual mass flywheel 1 is arranged in the drive train of a motor vehicle between the crankshaft of the internal combustion engine and the vehicle clutch.
  • the internal combustion engine is usually a gasoline or diesel engine.
  • the Vehicle clutch is a double clutch, possibly also a single clutch.
  • the torque of the vehicle clutch is via a parallel shift, a
  • the axis of rotation of the dual mass flywheel is designated R in FIG.
  • the axis of rotation R is the axis of rotation of the dual mass flywheel 1 and at the same time the axis of rotation of a crankshaft of a not shown
  • Dual mass flywheel 1 downstream vehicle clutch which is also not shown.
  • the direction is understood to be parallel to the axis of rotation R under the axial direction, and according to the radial direction, a direction perpendicular to the axis of rotation R is understood.
  • the circumferential direction is a rotation about the rotation axis R.
  • the dual-mass flywheel 1 comprises a primary flywheel mass 2 and a secondary flywheel mass 3, which can be rotated against the force of a bow spring arrangement as an energy store relative to each other about the rotation axis R.
  • the primary flywheel 2 is also called the primary side or input part, the
  • Secondary flywheel 3 also referred to as the secondary side or output part.
  • the bow spring assembly comprises a plurality of circumferentially arranged
  • each bow spring 4 may include coaxially arranged inner bow springs and outer bow springs.
  • the bow springs 4 are pressed during operation by the force acting on these centrifugal force to the outside against the primary flywheel 2. Therefore, on the radially outer side a sliding 5
  • the primary flywheel 2 reduced.
  • the primary flywheel 2 includes a motor-side primary flywheel plate 6 and a clutch side
  • Primary flywheel plate 6 and the primary flywheel cover 7 include a bow spring receptacle 8, in which the bow springs 4 are arranged.
  • the bow springs 4 are based on a spring end respectively at the
  • Primary flywheel 2 from, for example, not shown here webs or lugs in the of the primary flywheel mass plate 6 and the
  • Primary flywheel cover 7 arranged sealing ring 12 is in contact.
  • a starter ring gear 13 is further arranged, which can be brought into the installed position of the dual mass flywheel with an electric starter of the motor vehicle, not shown here in engagement.
  • the primary flywheel 2 is in installation position for transmitting torque with the crankshaft 14 of the engine with screws 15 as Screwed crankshaft screw connection. Between the heads of the screws 15 and the primary flywheel plate 6, a washer 22 is arranged.
  • the hub flange 10 comprises, in addition to the flange wings 15 which are in contact with spring ends of the bow springs 4, a central flange portion 16 and a hollow cylindrical hub portion 17.
  • the hub portion 17 includes a receiving bore 18 with a spline 19, with the hub flange 10 in the torque path of the Drive train downstream of the dual mass flywheel 1
  • Torque transmission means of a dual clutch in particular the
  • Clutch housing can be connected as an input part of the double clutch.
  • the dual clutch comprises an external spline toothing connected to the clutch housing as an input part of the dual clutch, which is inserted for mounting in the spline 19 of the hub part.
  • the middle flange part 16 has a plurality of disk-shaped regions 16a, 16b and 16c, between which obliquely, that is frusto-conical or rounded, extending regions 20a and 20b are arranged.
  • the radially outermost obliquely extending region 20c merges into the flange wings 9 via an obliquely extending region 20c.
  • the sealing ring 23 has a recess 24 for receiving the outer region of the washer 22.
  • the hub flange 10 side facing nestles the contour of the sealing ring 23 against the contour of the hub flange 10.
  • the hub flange 10 is in contact with the sealing ring 10 in the inclined portion 20b.
  • the sealing ring is radially centered by the screws 15 and the washer 22 and also by the inclined portion 20b and between primary flywheel plate 6 and
  • Hub flange 10 axially centered.
  • the sealing ring 23 and the sealing membrane 1 1 with sealing ring 12 seal the bow spring receptacle 8 to the outside.
  • FIG. 1 shows an embodiment of the invention
  • Dual mass flywheel 1 in which a centrifugal pendulum device with a plurality of centrifugal pendulums 24 arranged distributed over the circumference are arranged on the hub flange 10.
  • the centrifugal pendulum pendulum 24 are in the sealed-out sealed space 25 outside, which also contains the bow spring receiver 8, arranged.
  • additional moving masses are mounted as so-called pendulum masses 24 on a rotating part of the torsional vibration system.
  • the pendulum masses are in the present
  • Embodiment secondary side of the hub flange 10 is arranged.
  • Two pendulum part masses 26a, 26b of a centrifugal pendulum pendulum 24 are on both sides of the
  • Hub flange 10 arranged by rivets 27 firmly connected.
  • the rivets protrude through openings in the hub flange 10.
  • guide rollers 28 are arranged in slots of the hub flange 10 and slots of the shuttle parts 26a, 26b.
  • the surfaces of the slots in the flange wing become
  • centrifugal pendulum trajectories FKP tracks.
  • Guide rollers a link guide for the centrifugal pendulum.
  • Pendulum part masses 26a, 26b and the hub flange are sliding linings 29 to
  • stop damper 30 dampen the striking of the centrifugal pendulum pendulum 24 on the hub flange 10.
  • the pendulum masses perform in the field of centrifugal acceleration oscillations in the predetermined by the sliding guides tracks when excited by Dreh GmbHleichförmtechniken. Due to these vibrations, the exciter vibration is deprived of energy at appropriate times and fed back in, so that there is an attenuation of the excitation oscillation, so the pendulum mass acts as a vibration absorber. Since both the natural frequency of the centrifugal pendulum oscillation and the
  • Exciter frequency are proportional to the speed, can have a damper effect of a
  • FIG. 2 shows an alternative embodiment of the invention
  • Dual mass flywheel 1 without a centrifugal pendulum device Dual mass flywheel 1 without a centrifugal pendulum device.
  • both embodiments have in common that the hub flange 10 as a one-piece component on the one hand directly by means of the flange 9 with the spring ends of the bow springs 4 and on the other hand directly with an external spline, directly or via further flange with the coupling housing a
  • Vehicle clutch in particular a double clutch, is connected, in contact.
  • the hub flange is made in one piece (in one piece), for example as a stamped and bent component, and possibly machined. Depending on the material from which the hub flange 10 is made, individual areas or surfaces of the hub flange 10 are hardened, tempered or coated.
  • Table 1 names the parts of the hub flange 10 whose surface 5 are hardened or tempered by the respectively mentioned methods.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

L'invention concerne un volant bi-masse (1) comportant une masse primaire (2) et une masse secondaire (3) pouvant tourner l'une par rapport à l'autre contre la force d'un accumulateur d'énergie, la masse secondaire (3) comprenant un flasque de moyeu monopièce (10) se trouvant d'une part en liaison fonctionnelle avec l'accumulateur d'énergie (4) et comprenant d'autre part une partie de moyeu (17) pourvue d'un moyen (18, 19) destiné à la liaison amovible avec un embrayage de véhicule.
PCT/DE2015/200535 2014-12-12 2015-12-11 Volant bi-masse comportant un flasque de moyeu monopièce WO2016091259A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP15832796.5A EP3230620A1 (fr) 2014-12-12 2015-12-11 Volant bi-masse comportant un flasque de moyeu monopièce
CN201580066959.8A CN107002815B (zh) 2014-12-12 2015-12-11 具有一件式的毂法兰的双质量飞轮
DE112015005550.9T DE112015005550A5 (de) 2014-12-12 2015-12-11 Zweimassenschwungrad mit einteiligem nabenflansch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014225663.1 2014-12-12
DE102014225663.1A DE102014225663A1 (de) 2014-12-12 2014-12-12 Zweimassenschwungrad mit einteiligem Nabenflansch

Publications (1)

Publication Number Publication Date
WO2016091259A1 true WO2016091259A1 (fr) 2016-06-16

Family

ID=55315254

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/200535 WO2016091259A1 (fr) 2014-12-12 2015-12-11 Volant bi-masse comportant un flasque de moyeu monopièce

Country Status (4)

Country Link
EP (1) EP3230620A1 (fr)
CN (1) CN107002815B (fr)
DE (2) DE102014225663A1 (fr)
WO (1) WO2016091259A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016155728A1 (fr) * 2015-03-27 2016-10-06 Schaeffler Technologies AG & Co. KG Élément formant moyeu et amortisseur de vibrations torsionnelles
FR3055933A1 (fr) * 2016-09-14 2018-03-16 Valeo Embrayages Volant secondaire pour double volant amortisseur
FR3057931A1 (fr) * 2016-10-25 2018-04-27 Valeo Embrayages Dispositif de transmission de couple a couvercle, pour un vehicule automobile
WO2018210378A1 (fr) * 2017-05-17 2018-11-22 Schaeffler Technologies AG & Co. KG Double volant amortisseur sans couvercle doté d'un pendule à force centrifuge

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015203475A1 (de) * 2015-02-26 2016-09-01 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer und Verfahren zu dessen Herstellung
DE102017112962A1 (de) 2017-06-13 2018-12-13 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102018113085A1 (de) 2017-06-30 2019-01-03 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102017121748A1 (de) 2017-09-20 2019-03-21 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE112018004994A5 (de) * 2017-10-27 2020-06-10 Schaeffler Technologies AG & Co. KG Fliehkraftpendelanordnung
DE102018108127A1 (de) 2018-04-06 2019-10-10 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102018210945B4 (de) * 2018-07-03 2021-12-09 Audi Ag Drehschwingungsdämpfer
CN110686044A (zh) * 2018-07-05 2020-01-14 舍弗勒技术股份两合公司 双质量飞轮
CN110792726A (zh) * 2018-08-02 2020-02-14 舍弗勒技术股份两合公司 双质量飞轮
DE102018215114A1 (de) * 2018-09-06 2020-03-12 Zf Friedrichshafen Ag Vorrichtung zum Dämpfen von Torsionsschwingungen in einem Antriebsstrang
DE102018125615A1 (de) * 2018-10-16 2020-04-16 Schaeffler Technologies AG & Co. KG Fliehkraftpendel
CN109253213B (zh) * 2018-11-27 2019-09-24 安徽江淮汽车集团股份有限公司 一种常啮合起动电机的飞轮
DE102019130348A1 (de) 2018-12-06 2020-06-10 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102019101164A1 (de) * 2019-01-17 2020-07-23 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102019128062A1 (de) * 2019-10-17 2021-04-22 Schaeffler Technologies AG & Co. KG Primärteil mit einteiliger in der Primärschwungmasse eingepresster Flexplate
DE102021105232A1 (de) 2021-03-04 2022-09-08 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102022104652A1 (de) 2022-02-28 2023-08-31 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102022108784A1 (de) 2022-04-11 2023-10-12 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer mit einem Reibelement
DE102022115065A1 (de) 2022-06-15 2023-12-21 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117582A1 (de) 1990-05-31 1991-12-05 Luk Lamellen & Kupplungsbau Drehmomentuebertragungseinrichtung
EP0763673A2 (fr) * 1995-08-31 1997-03-19 Kabushiki Kaisha Yutaka Giken Volant à deux masses
DE202008006078U1 (de) * 2008-03-11 2008-07-31 Zf Friedrichshafen Ag Torsionsschwingungsdämpfer
EP2103838A2 (fr) * 2008-03-11 2009-09-23 ZF Friedrichshafen AG Amortisseur des vibrations de torsion, en particulier pour le conducteur de commande d'un véhicule
DE102011087235A1 (de) * 2010-12-22 2012-06-28 Schaeffler Technologies Gmbh & Co. Kg Torsionsdämpfer
EP2706262A2 (fr) * 2012-09-06 2014-03-12 Schaeffler Technologies AG & Co. KG Dispositif de transmission de couple
EP2765331A2 (fr) * 2013-02-06 2014-08-13 Aisin Seiki Kabushiki Kaisha Appareil de transmission de puissance
WO2015165672A1 (fr) * 2014-04-28 2015-11-05 Zf Friedrichshafen Ag Unité d'amortissement de vibrations

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012212734A1 (de) * 2012-07-19 2014-01-23 Zf Friedrichshafen Ag Dämpferanordnung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117582A1 (de) 1990-05-31 1991-12-05 Luk Lamellen & Kupplungsbau Drehmomentuebertragungseinrichtung
EP0763673A2 (fr) * 1995-08-31 1997-03-19 Kabushiki Kaisha Yutaka Giken Volant à deux masses
DE202008006078U1 (de) * 2008-03-11 2008-07-31 Zf Friedrichshafen Ag Torsionsschwingungsdämpfer
EP2103838A2 (fr) * 2008-03-11 2009-09-23 ZF Friedrichshafen AG Amortisseur des vibrations de torsion, en particulier pour le conducteur de commande d'un véhicule
DE102011087235A1 (de) * 2010-12-22 2012-06-28 Schaeffler Technologies Gmbh & Co. Kg Torsionsdämpfer
EP2706262A2 (fr) * 2012-09-06 2014-03-12 Schaeffler Technologies AG & Co. KG Dispositif de transmission de couple
EP2765331A2 (fr) * 2013-02-06 2014-08-13 Aisin Seiki Kabushiki Kaisha Appareil de transmission de puissance
WO2015165672A1 (fr) * 2014-04-28 2015-11-05 Zf Friedrichshafen Ag Unité d'amortissement de vibrations

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016155728A1 (fr) * 2015-03-27 2016-10-06 Schaeffler Technologies AG & Co. KG Élément formant moyeu et amortisseur de vibrations torsionnelles
FR3055933A1 (fr) * 2016-09-14 2018-03-16 Valeo Embrayages Volant secondaire pour double volant amortisseur
FR3057931A1 (fr) * 2016-10-25 2018-04-27 Valeo Embrayages Dispositif de transmission de couple a couvercle, pour un vehicule automobile
WO2018210378A1 (fr) * 2017-05-17 2018-11-22 Schaeffler Technologies AG & Co. KG Double volant amortisseur sans couvercle doté d'un pendule à force centrifuge

Also Published As

Publication number Publication date
EP3230620A1 (fr) 2017-10-18
DE112015005550A5 (de) 2017-08-24
CN107002815B (zh) 2019-10-11
CN107002815A (zh) 2017-08-01
DE102014225663A1 (de) 2016-06-16

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