US20070253823A1 - Turbine blade tab attachment means for a torque converter dampening spring retainer and a method of manufacturing said attachment means - Google Patents

Turbine blade tab attachment means for a torque converter dampening spring retainer and a method of manufacturing said attachment means Download PDF

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Publication number
US20070253823A1
US20070253823A1 US11/796,480 US79648007A US2007253823A1 US 20070253823 A1 US20070253823 A1 US 20070253823A1 US 79648007 A US79648007 A US 79648007A US 2007253823 A1 US2007253823 A1 US 2007253823A1
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Prior art keywords
blade
turbine
tab
shell
slot
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Abandoned
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US11/796,480
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English (en)
Inventor
Kevin Parks
Steven Olsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Buehl Verwaltungs GmbH
Original Assignee
LuK Lamellen und Kupplungsbau Beteiligungs KG
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Application filed by LuK Lamellen und Kupplungsbau Beteiligungs KG filed Critical LuK Lamellen und Kupplungsbau Beteiligungs KG
Priority to US11/796,480 priority Critical patent/US20070253823A1/en
Assigned to LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG reassignment LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OLSEN, STEVEN, PARKS, KEVIN
Publication of US20070253823A1 publication Critical patent/US20070253823A1/en
Abandoned legal-status Critical Current

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    • 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
    • F16H—GEARING
    • F16H41/00—Rotary fluid gearing of the hydrokinetic type
    • F16H41/24—Details
    • F16H41/28—Details with respect to manufacture, e.g. blade attachment

Definitions

  • the invention relates generally to torque converters and, more specifically, to a spring retainer attachment using tabs for a torque converter and a method of manufacturing the spring retainer attachment.
  • This present invention relates generally to a turbine blade tab attachment means for a torque converter dampening spring retainer and a method of manufacturing the attachment means.
  • Torque converters are known in the art having dampening springs and attachment means.
  • FIG. 1 illustrates a general block diagram showing the relationship of the engine 7 , torque converter 10 , transmission 8 , and differential/axle assembly 9 in a typical vehicle.
  • the three main components of the torque converter are the pump 37 , turbine 38 , and stator 39 .
  • the torque converter becomes a sealed chamber when the pump is welded to cover 11 .
  • the cover is connected to flexplate 41 which is, in turn, bolted to crankshaft 42 of engine 7 .
  • the cover can be connected to the flexplate using lugs or studs welded to the cover.
  • the welded connection between the pump and cover transmits engine torque to the pump. Therefore, the pump always rotates at engine speed.
  • the function of the pump is to use this rotational motion to propel the fluid radially outward and axially towards the turbine.
  • the pump is a centrifugal pump propelling fluid from a small radial inlet to a large radial outlet, increasing the energy in the fluid.
  • Pressure to engage transmission clutches and the torque converter clutch is supplied by an additional pump in the transmission that is driven by the pump hub.
  • torque converter 10 a fluid circuit is created by the pump (sometimes called an impeller), the turbine, and the stator (sometimes called a reactor).
  • the fluid circuit allows the engine to continue rotating when the vehicle is stopped, and accelerate the vehicle when desired by a driver.
  • the torque converter supplements engine torque through torque ratio, similar to a gear reduction.
  • Torque ratio is the ratio of output torque to input torque. Torque ratio is highest at low or no turbine rotational speed (also called stall). Stall torque ratios are typically within a range of 1.8-2.2. This means that the output torque of the torque converter is 1.8-2.2 times greater than the input torque. Output speed, however, is much lower than input speed, because the turbine is connected to the output and it is not rotating, but the input is rotating at engine speed.
  • Turbine 38 uses the fluid energy it receives from pump 37 to propel the vehicle.
  • Turbine shell 22 is connected to turbine hub 19 .
  • Turbine hub 19 uses a spline connection to transmit turbine torque to transmission input shaft 43 .
  • the input shaft is connected to the wheels of the vehicle through gears and shafts in transmission 8 and axle differential 9 .
  • the force of the fluid impacting the turbine blades is output from the turbine as torque.
  • Axial thrust bearings 31 support the components from axial forces imparted by the fluid. When output torque is sufficient to overcome the inertia of the vehicle at rest, the vehicle begins to move.
  • Stator 39 is used to redirect the fluid to help accelerate the pump, thereby increasing torque ratio.
  • Stator 39 is connected to stator shaft 45 through one-way clutch 46 .
  • the stator shaft is connected to transmission housing 47 and does not rotate.
  • One-way clutch 46 prevents stator 39 from rotating at low speed ratios (where the pump is spinning faster than the turbine). Fluid entering stator 39 from turbine outlet 44 is turned by stator blades 48 to enter pump 37 in the direction of rotation.
  • the blade inlet and exit angles, the pump and turbine shell shapes, and the overall diameter of the torque converter influence its; performance. Design parameters include the torque ratio, efficiency, and ability of the torque converter to absorb engine torque without allowing the engine to “run away.” This occurs if the torque converter is too small and the pump can't slow the engine.
  • the torque converter works well to allow the engine to rotate while the vehicle is stationary, and to supplement engine torque for increased performance.
  • the torque converter is less efficient.
  • the torque ratio of the torque converter gradually reduces from a high of about 1.8 to 2.2, to a torque ratio of about 1 as the turbine rotational speed approaches the pump rotational speed. Torque ratio of 1 is called the coupling point.
  • the fluid entering the stator no longer needs to be redirected, and the one way clutch in the stator allows it to rotate in the same direction as the pump and turbine. Because the stator is not redirecting the fluid, torque output from the torque converter is the same as torque input. The entire fluid circuit will rotate as a unit.
  • torque converter clutch 49 is employed to mechanically connect the torque converter input to the output, improving efficiency to near 100%.
  • Clutch piston plate 17 is hydraulically applied when commanded by the transmission controller. Piston plate 17 is sealed to turbine hub 19 at its inner diameter by o-ring 18 and to cover 11 at its outer diameter by friction material ring 51 . These seals create a pressure chamber and force piston plate 17 into engagement with cover 11 . This mechanical connection bypasses the torque converter fluid circuit.
  • the mechanical connection of torque converter clutch 49 transmits many more engine torsional fluctuations to the drivetrain.
  • the drivetrain is basically a spring-mass system, torsional fluctuations from the engine can excite natural frequencies of the system.
  • a damper is employed to shift the drivetrain natural frequencies out of the driving range.
  • the damper includes springs 15 in series to lower the effective spring rate of the system, thereby lowering the natural frequency.
  • Torque converter clutch 49 generally comprises four components: piston plate 17 , cover plates 12 and 16 , springs 15 , and flange 13 .
  • Cover plates 12 and 16 transmit torque from piston plate 17 to compression springs 15 .
  • Cover plate wings 52 are formed around springs 15 for axial retention.
  • Torque from piston plate 17 is transmitted to cover plates 12 and 16 through a riveted connection.
  • Cover plates 12 and 16 impart torque to compression springs 15 by contact with an edge of a spring window. Both cover plates work in combination to support the spring on both sides of the spring center axis.
  • Spring force is transmitted to flange 13 by contact with a flange spring window edge.
  • the flange also has a rotational tab or slot which engages a portion of the cover plate to prevent over-compression of the springs during high torque events. Torque from flange 13 is transmitted to turbine hub 19 and into transmission input shaft 43 .
  • Hysteresis includes friction from windup and unwinding of the damper plates, so it is twice the actual friction torque.
  • the hysteresis package generally consists of diaphragm (or Belleville) spring 14 which is placed between flange 13 and one of cover plates 16 to urge flange 13 into contact with the other cover plate 12 . By controlling the amount of force exerted by diaphragm spring 14 , the amount of friction torque can also be controlled. Typical hysteresis values are in the range of 10-30 Nm.
  • a torque converter comprises many parts which must be assembled in a limited space. Axial space is always at a premium, especially in front wheel drive vehicles. Thus, there is a long-felt need for maximizing the efficient use of space within a torque converter to reduce axial space. What is needed, then, is a turbine blade tab attachment means for a torque converter dampening spring retainer and a method of manufacturing the attachment means which efficiently uses axial space to reduce axial displacement of the torque converter.
  • the present invention broadly comprises, in a turbine assembly, arranged for disposition in a torque converter, having a turbine blade, a turbine shell, and a spring retainer, an attachment means for securing the turbine blade to the turbine shell and the spring retainer, including at least one first blade tab extending outwardly from the turbine blade arranged to engage at least one first slot within the turbine shell and at least one second slot within the spring retainer.
  • the at least one first blade tab is arranged to fix the at least one blade with respect to the spring retainer.
  • the retainer shell comprises an interior surface and an exterior surface, the exterior surface is arranged to contact the turbine shell, and in some aspects, the at least one first blade tab is arranged to be bent to contact the interior surface.
  • the attachment means includes at least one second blade tab extending outwardly from the turbine blade and the turbine shell includes at least one third slot, the at least one second blade tab is arranged to engage the at least one third slot, and the at least one second blade tab is arranged to fix the at least one blade with respect to the turbine shell.
  • the attachment means includes at least one third blade tab extending outwardly from the turbine blade, the turbine assembly further comprises a core with at least one fourth slot, and the at least one third tab is arranged to engage the at least one fourth slot.
  • the present invention also broadly comprises, in a turbine assembly, arranged for disposition in a torque converter, having a turbine blade, a turbine shell, and a spring retainer, an attachment means for securing the turbine blade to the turbine shell and the spring retainer, including at least one first blade tab extending outwardly from the turbine blade and at least partially disposed in at least one first slot within the turbine shell and in at least one second slot within the spring retainer.
  • the at least one first blade tab is configured to fix the at least one blade with respect to the spring retainer.
  • the retainer shell comprises an interior surface and an exterior surface, the exterior surface is in contact with the turbine shell, and in some aspects, the at least one first blade tab is bent to contact the interior surface.
  • the attachment means includes at least one second blade tab extending outwardly from the turbine blade, the turbine shell includes at least one third slot, the at least one second blade tab is at least partially disposed within the at least one third slot, and the at least one second blade tab is configured to fix the at least one blade with respect to the turbine shell.
  • the attachment means includes at least one third blade tab extending outwardly from the turbine blade, the turbine assembly includes a core with at least one fourth slot, and the at least one third tab is at least partially disposed within the at least one fourth slot.
  • the present invention further broadly comprises, in a turbine assembly, arranged for disposition in a torque converter, having a turbine blade, a turbine shell, and a spring retainer, an attachment means for securing the turbine blade to the turbine shell and the spring retainer, including: a first blade tab extending outwardly from the turbine blade and arranged to engage a first slot within the turbine shell; and a second blade tab extending outwardly from the turbine blade and arranged to engage a second slot within the turbine shell and a slot within the spring retainer.
  • the first blade tab is arranged to fix the at least one blade with respect to the turbine shell and the second blade tab is arranged to fix the blade with respect to the spring retainer.
  • the spring retainer comprises an interior surface and an exterior surface
  • the turbine shell comprises an exterior surface
  • the retainer exterior surface is arranged to contact the turbine shell exterior surface
  • the first tab is arranged to be bent to contact the turbine shell exterior surface
  • the second blade tab is arranged to be bent to contact the retainer interior surface
  • the present invention broadly comprises a method of assembling a turbine shell assembly, including the steps of: inserting a first tab for a turbine blade through a first slot in the turbine shell; inserting the first tab through a slot in the spring retainer; and manipulating the first tab to fix the blade with respect to the spring retainer.
  • the spring retainer comprises a surface and in some aspects, manipulating the first tab includes bending the first tab to contact the surface.
  • the blade includes a second tab and the method includes inserting the second tab through a second slot in the turbine shell and manipulating the second tab to fix the blade with respect to the turbine shell.
  • the turbine shell comprises a surface and in some aspects, manipulating the second tab includes bending the second tab to contact the surface.
  • the method brazes or welds the blade to the turbine shell after inserting the second tab and prior to inserting the first tab.
  • the assembly includes a core with a fourth slot and the blade includes a third tab. Then the method includes inserting the third tab through the fourth slot and manipulating the third tab to secure the blade to the core.
  • the core includes an interior surface and in some aspects, manipulating the third tab includes bending the third tab to contact the interior surface.
  • FIG. 1 is a general block diagram illustration power flow in a motor vehicle, intended to help explain the relationship and function of a torque converter in the drive train thereof;
  • FIG. 2 is a cross-sectional view of a prior art torque converter, shown secured to an engine of a motor vehicle;
  • FIG. 3 is a left view of the torque converter shown in FIG. 2 , taken generally along line 3 - 3 in FIG. 2 ;
  • FIG. 4 is a cross-sectional view of the torque converter shown in FIGS. 2 and 3 , taken generally along line 4 - 4 in FIG. 3 ;
  • FIG. 5 is a first exploded view of the torque converter shown in FIG. 2 , as shown from the perspective of one viewing the exploded torque converter from the left;
  • FIG. 6 is a second exploded view of the torque converter shown in FIG. 2 , as shown from the perspective of one viewing the exploded torque converter from the right;
  • FIG. 7 is a back view of a present invention turbine assembly for a torque converter
  • FIG. 8 is a side view of the assembly shown in FIG. 7 ;
  • FIG. 9 is a cross sectional view generally taken along line 9 - 9 in FIG. 7 of the assembly shown in FIG. 7 in a torque converter.
  • FIG. 7 is a back view of present invention turbine assembly 110 for a torque converter (not shown).
  • FIG. 8 is a side view of assembly 110 shown in FIG. 7 .
  • FIG. 9 is a cross sectional view of assembly 110 generally taken along line 9 - 9 in FIG. 7 .
  • FIG. 9 is a cross sectional view generally taken along line 9 - 9 in FIG. 7 of assembly 110 shown in FIG. 7 in a torque converter. The following should be viewed in light of FIGS. 7-9 .
  • Assembly 110 includes present invention turbine blades 120 , which are shown in detail in FIG. 9 .
  • blades 120 include blade tabs 124 and 126 .
  • Assembly 110 also includes turbine shell 130 and spring retainer 140 .
  • shell 130 includes slots 132 and 134 .
  • FIG. 7 shows blade tabs 124 in registration with (aligned with) and protruding through slots 134 .
  • blade tabs 124 are bent onto exterior surface 170 of shell 130 .
  • FIG. 8 shows in further detail spring retainer 140 .
  • spring retainer 140 includes two sets of circumferentially disposed retainer slots 142 , one set radially outside the other.
  • each blade 120 includes two retainer blade tabs 126 in registration with respective slots 142 .
  • retainer 140 includes four dampening springs 144 , coiled into outer lip 146 of spring retainer 140 .
  • the present invention is not limited to the components or number and configuration of components shown for retainer 140 and that other components and number and configuration of components are included within the spirit and scope of the claimed invention.
  • FIG. 9 shows tabs 124 inserted through outer shell slot 134 of turbine shell 130 and bent. For example, the tabs are bent to contact exterior surface 170 of the shell.
  • FIG. 9 also shows tabs 126 inserted through slots 132 and 142 and bent. For example, the tabs are bent to contact interior surface 172 of the retainer.
  • a present invention assembly is not limited to the number and configuration of slots 132 and 134 shown, and that other numbers and configurations of slots 132 and 134 are included within the spirit and scope of the claimed invention. It also should be appreciated that in a present invention assembly, not every turbine blade need include tabs 124 and 126 . It should be further appreciated that different blades 120 in a present invention assembly can have different numbers and configurations of tabs.
  • turbine shell 130 has two inner shell slots 132 and outer shell slot 134 for connection with turbine blades 120 .
  • the inner shell slots 132 are arranged such that they are in registration with respective retainer blade tabs 126
  • outer shell slot 134 is arranged such that it is in registration with shell blade tab 124 . It should be appreciated that this invention is not limited to turbine shell 130 having exactly two inner shell slots 132 and one outer shell slot 134 and that other numbers and combinations of inner and outer slots are included within the spirit and scope of the claimed invention.
  • spring retainer 140 is arranged to include retainer slots 142 in registration with shell slots 132 of turbine shell 130 .
  • blades 120 includes blade tab 128 disposed into core slot 152 of core ring 150 .
  • tab 128 is bent to affix each turbine blade 120 to core ring 150 .
  • the tab is bent to contact interior surface 176 of the core.
  • Core ring 150 serves as a stabilizer for assembly 110 , specifically for blades 120 .
  • Core ring 150 is shown in FIG. 9 to have one core slot 152 for respective turbine blades 120 .
  • Slot 152 is arranged such that it is in registration with a core blade tab 128 .
  • Tabs 124 are disposed into each slots 134 , tab 124 are bent to affix the blades to turbine shell 130 . Further, tabs 126 are disposed into slots 132 and retainer slots 142 , and tabs 126 are bent to affix spring retainer 140 to turbine shell 130 and the blades. Thus, core ring 150 , blades 120 , turbine shell 130 , and spring retainer 140 are attached together.
  • FIG. 9 shows turbine shell 130 attached to turbine hub 160 by using hub rivet 162 .
  • Rivet 162 is shorter than a rivet would need to be if spring retainer 140 extended into this connection. It should be appreciated that this invention is not limited to using a rivet to connect turbine shell 130 and turbine hub 160 , and that any connecting means known in the art including but not limited to, welding, staking, bonding, or press-fitting, can be used to connect assembly 200 and turbine hub 160 .
  • turbine blades 120 , turbine shell 130 , spring retainer 140 and/or core ring 150 are made from stamped steel through rolling, stamping and trimming processes known in the art.
  • Turbine hub 160 is generally made from steel by any casting or machining methods known in the art or from powdered metal.
  • Each dampening spring 144 is made out of coiled steel. It should be appreciated that the present invention is not limited to using steel as the primary material in fabrication.
  • the present invention also includes in a turbine assembly, for insertion in a torque converter, having a turbine blade having a first blade tab and a second blade tab, a turbine shell having a first shell slot and a second shell slot, and a spring retainer having a retainer slot, a method for manufacturing an attachment means for securing the turbine blade to the turbine shell and the spring retainer.
  • a first step inserts the first tab through the first shell slot.
  • a second step inserts the first tab through the retainer slot.
  • a third step manipulates the first tab to fix the blade with respect to the spring retainer.
  • the spring retainer includes a surface and in some aspect, the third step bends the first tab to contact the surface.
  • a fourth step inserts the second tab through the second shell slot and a fifth step manipulates the second tab to fix the blade with respect to the turbine shell.
  • the turbine shell includes a surface and in some aspects, the fifth step bends the second tab to contact the surface.
  • a sixth step brazes the blade to the turbine shell after inserting the second tab and prior to inserting the first tab.
  • an seventh step welds the blade to the turbine shell after inserting the second tab and prior to inserting the first tab.
  • the assembly includes a core with a core slot and the blade includes a third tab. Then, an eighth step inserts the third tab through core slot and a ninth step manipulates the third tab to secure the blade to the core.
  • the core includes an interior surface and in some aspects, the ninth step bends the third tab to contact the interior surface.
  • the method described supra includes setting blade 120 into and between turbine shell 130 and core ring 150 , inserting tabs 128 through core slots 152 of core ring 150 , and inserting tabs 124 through slots 134 of turbine shell 130 .
  • Tabs 126 are inserted through shell slots 132 .
  • a roller is then passed over tabs 124 to bend shell blade tabs 124 onto the surface 170 to affix turbine shell 130 to turbine blades 120 .
  • a roller is also passed over core blade tabs 128 to bend core blade tabs 128 onto core ring 150 , affixing core ring 150 to turbine blades 120 .
  • the assembly of turbine blades 120 , turbine shell 130 , and core ring 150 is now treated.
  • the treatment can be brazing, welding, or laser welding and allows for turbine blades 120 , turbine shell 130 , and core ring 150 to be treated and affixed to each other without exposing spring retainer 140 to the treatment process, which can compromise the hardness of the spring retainer.
  • the present invention is not limited to using core ring 150 , but that the inclusion of the ring in the method simplifies manufacturing.
  • Spring retainer 140 is then affixed by aligning spring retainer slots 142 with retainer blade tabs 126 and inserting retainer blade tabs 126 through retainer slots 142 .
  • a roller is passed over tabs 126 to bend tabs 126 onto the retainer shell, thus affixing core ring 150 , blades 120 , turbine shell 130 , and spring retainer 140 .
  • Turbine assembly 110 can now be used in any number of torque converters known in the art. It should be appreciated that the present invention is not limited to using a roller to bend the tabs and that any means known in the art can be used to secure the tabs to respective surfaces.
  • the present invention can be implemented into any torque converter known in the art and is not limited to use with any particular size, configuration, or type of torque converter. Further, many torque converters known in the art would benefit from the efficient connection of the spring retainer in the present invention and the method presented and the saving of axial space provided thereby. It should also be appreciated that the present invention can be readily used in a torque converter that makes use of a stator.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
US11/796,480 2006-05-01 2007-04-27 Turbine blade tab attachment means for a torque converter dampening spring retainer and a method of manufacturing said attachment means Abandoned US20070253823A1 (en)

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US11/796,480 US20070253823A1 (en) 2006-05-01 2007-04-27 Turbine blade tab attachment means for a torque converter dampening spring retainer and a method of manufacturing said attachment means

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US79650606P 2006-05-01 2006-05-01
US11/796,480 US20070253823A1 (en) 2006-05-01 2007-04-27 Turbine blade tab attachment means for a torque converter dampening spring retainer and a method of manufacturing said attachment means

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US (1) US20070253823A1 (de)
JP (1) JP2009535581A (de)
CN (1) CN101438081A (de)
DE (1) DE112007000881A5 (de)
WO (1) WO2007124715A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101915295A (zh) * 2010-08-17 2010-12-15 吴一鸥 弧形柱塞液力变矩器
US20120205914A1 (en) * 2009-09-30 2012-08-16 Marcus Reich Wind energy converter
US20140157929A1 (en) * 2012-12-12 2014-06-12 Guobin Yin Flexplates and method for capacitor discharge welding of flexplates
DE102014206197A1 (de) 2013-04-17 2014-10-23 Schaeffler Technologies Gmbh & Co. Kg Turbinenbaugruppe für einen Drehmomentwandler mit einer Zungenplatte und einem Turbinengehäuse, die zusammengelötet sind, und Verfahren zum Bilden derselben
DE102015205886A1 (de) 2014-04-23 2015-10-29 Schaeffler Technologies AG & Co. KG Drehmomentwandler-Antriebsbaugruppe mit einer an das Turbinengehäuse angenieteten Federhalterung
US20180149248A1 (en) * 2016-11-28 2018-05-31 Schaeffler Technologies AG & Co. KG Torque converter with a finger-tabbed brazed inertia ring

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101614271B (zh) * 2009-07-31 2011-08-31 中国北车集团大连机车研究所有限公司 液力传动机车用运转变矩器涡轮叶型
CN101614269B (zh) * 2009-07-31 2011-06-15 中国北车集团大连机车研究所有限公司 液力传动机车用起动变矩器涡轮叶型

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US5829561A (en) * 1995-09-19 1998-11-03 Valeo Hydrokinetic coupling device
US6012558A (en) * 1998-02-06 2000-01-11 Mannesmann Sachs Ag Hydrodynamic coupling device with a lockup clutch
US6024195A (en) * 1997-10-29 2000-02-15 Mannesmann Sachs Ag Hydrodynamic torque converter with a link to turbine blades for a lockup clutch
US6056093A (en) * 1997-12-09 2000-05-02 Mannesmann Sachs Ag Torque converter with a turbine shell integrated with a torsional vibration damper
US20050042106A1 (en) * 1992-10-12 2005-02-24 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Power transfer apparatus with fluid coupling
US6957530B2 (en) * 2002-12-06 2005-10-25 Zf Sachs Ag Hydrodynamic torque converter

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JP2005061532A (ja) * 2003-08-13 2005-03-10 Valeo Unisia Transmission Kk トルクコンバータ

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US20050042106A1 (en) * 1992-10-12 2005-02-24 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Power transfer apparatus with fluid coupling
US5829561A (en) * 1995-09-19 1998-11-03 Valeo Hydrokinetic coupling device
US6024195A (en) * 1997-10-29 2000-02-15 Mannesmann Sachs Ag Hydrodynamic torque converter with a link to turbine blades for a lockup clutch
US6056093A (en) * 1997-12-09 2000-05-02 Mannesmann Sachs Ag Torque converter with a turbine shell integrated with a torsional vibration damper
US6012558A (en) * 1998-02-06 2000-01-11 Mannesmann Sachs Ag Hydrodynamic coupling device with a lockup clutch
US6957530B2 (en) * 2002-12-06 2005-10-25 Zf Sachs Ag Hydrodynamic torque converter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120205914A1 (en) * 2009-09-30 2012-08-16 Marcus Reich Wind energy converter
CN101915295A (zh) * 2010-08-17 2010-12-15 吴一鸥 弧形柱塞液力变矩器
US20140157929A1 (en) * 2012-12-12 2014-06-12 Guobin Yin Flexplates and method for capacitor discharge welding of flexplates
US9982748B2 (en) * 2012-12-12 2018-05-29 Magna International Flexplates and method for capacitor discharge welding of flexplates
US10975931B2 (en) 2012-12-12 2021-04-13 Magna International Flexplates and method for capacitor discharge welding of flexplates
DE102014206197A1 (de) 2013-04-17 2014-10-23 Schaeffler Technologies Gmbh & Co. Kg Turbinenbaugruppe für einen Drehmomentwandler mit einer Zungenplatte und einem Turbinengehäuse, die zusammengelötet sind, und Verfahren zum Bilden derselben
DE102015205886A1 (de) 2014-04-23 2015-10-29 Schaeffler Technologies AG & Co. KG Drehmomentwandler-Antriebsbaugruppe mit einer an das Turbinengehäuse angenieteten Federhalterung
US9822861B2 (en) 2014-04-23 2017-11-21 Schaeffler Technologies AG & Co. KG Torque converter drive assembly including spring retainer riveted to turbine shell
US20180149248A1 (en) * 2016-11-28 2018-05-31 Schaeffler Technologies AG & Co. KG Torque converter with a finger-tabbed brazed inertia ring
US10330185B2 (en) * 2016-11-28 2019-06-25 Schaeffler Technologies AG & Co. KG Torque converter with a finger-tabbed brazed inertia ring

Also Published As

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DE112007000881A5 (de) 2009-01-08
JP2009535581A (ja) 2009-10-01
CN101438081A (zh) 2009-05-20
WO2007124715A1 (de) 2007-11-08

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