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WO2014092269A1 - Convertisseur de couple pour véhicule - Google Patents

Convertisseur de couple pour véhicule Download PDF

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Publication number
WO2014092269A1
WO2014092269A1 PCT/KR2013/004687 KR2013004687W WO2014092269A1 WO 2014092269 A1 WO2014092269 A1 WO 2014092269A1 KR 2013004687 W KR2013004687 W KR 2013004687W WO 2014092269 A1 WO2014092269 A1 WO 2014092269A1
Authority
WO
WIPO (PCT)
Prior art keywords
disposed
reactor
impeller
torque converter
turbine
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2013/004687
Other languages
English (en)
Korean (ko)
Inventor
이성은
김진문
장재덕
주인식
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.)
Korea Powertrain Co Ltd
Original Assignee
Korea Powertrain Co Ltd
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 Korea Powertrain Co Ltd filed Critical Korea Powertrain Co Ltd
Publication of WO2014092269A1 publication Critical patent/WO2014092269A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16H—GEARING
    • F16H41/00—Rotary fluid gearing of the hydrokinetic type
    • F16H41/24—Details
    • 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
    • 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
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches 
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • 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
    • F16H2041/246—Details relating to one way clutch of the stator
    • 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
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches 
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0205—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type two chamber system, i.e. without a separated, closed chamber specially adapted for actuating a lock-up clutch
    • 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
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches 
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
    • F16H2045/0226—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers
    • 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
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches 
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
    • F16H2045/0278—Combinations of fluid gearings for conveying rotary motion with couplings or clutches  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch comprising only two co-acting friction surfaces

Definitions

  • the present invention relates to a torque converter for a vehicle that improves productivity by reducing the number of parts in a part where the reactor and the one-way clutch are coupled to each other.
  • the torque converter is installed between the engine of the vehicle and the transmission to transmit the driving force of the engine to the transmission using a fluid.
  • a torque converter receives a driving force of an engine, a turbine that rotates by an impeller that is rotated by oil discharged from an impeller, and a reactor that increases the rate of change of torque by directing the flow of oil flowing back to the impeller in a direction of rotation of the impeller ('stator' "Also".
  • Torque converters are equipped with a lock-up clutch (also called a 'damper clutch'), a means of direct connection between the engine and the transmission, as the load on the engine can decrease power transmission efficiency.
  • the lockup clutch is disposed between the turbine and the front cover that is connected to the engine so that the rotational power of the engine can be transmitted directly to the turbine.
  • This lockup clutch includes a piston that is axially coupled to the turbine shaft. And the piston is coupled to the friction material in friction contact with the front cover. And when the friction material coupled to the piston is coupled to the front cover is coupled a torsional damper (Torsional damper) that can absorb the shock and vibration acting in the rotational direction of the shaft.
  • Torsional damper torsional damper
  • the one-way clutch is disposed on the inner circumferential surface (the rotation center side).
  • Wenway clutches include inner races, multiple bearings and outer races from the center of rotation. That is, since the outer race of the one-way clutch is coupled to the inner circumferential surface of the reactor, the reactor is installed in a structure capable of rotating only in one direction. And a retainer for preventing the wenway clutch from moving in the axial direction is disposed on one side of the wenway clutch.
  • Such a structure that restricts the movement of the conventional one-way clutch in the axial direction includes a retainer, so there is a problem that the number of parts is increased and assembly performance and productivity may be degraded.
  • an object of the present invention is to provide a torque converter for a vehicle that improves assembly and productivity by reducing the number of parts.
  • the present invention is to provide a vehicle torque converter that can reduce the cost when the outer race is processed and assembled.
  • the present invention is a front cover, the impeller coupled to the front cover to rotate, the turbine disposed in the position facing the impeller to rotate together in accordance with the rotation of the impeller, the impeller Located between the turbine and the turbine to change the flow of oil from the turbine to the impeller side, a one-way clutch disposed on the center of rotation axis of the reactor to rotate the reactor in only one direction, directly connecting the front cover and the turbine A lock up clutch, and a tonic damper coupled to the lock up clutch and having springs disposed in a circumferential direction of the shaft to absorb vibration and shock in a rotational direction,
  • the wenway clutch is an outer race disposed on the inner circumferential surface of the reactor, an inner race disposed at a predetermined distance from the inner circumferential surface of the outer race, a bearing fixing member disposed between the outer race and the inner race, and the bearing It includes a plurality of bearings disposed in the circumferential direction in the fixed member,
  • the bearing fixing member is disposed in the circumferential direction and provided with a plurality of grooves in which the bearing is disposed, an extension part which is bent and extended in a direction perpendicular to the rotation axis in the fixing part, and the extension part in a radial direction with respect to the rotation axis. It extends to provide a vehicle torque converter including a movement limiting unit for limiting movement in the axial direction.
  • the movement limiting portion is provided at intervals in which a portion of the extension is processed by punching to be symmetrical in the radial direction with respect to the axis of rotation.
  • the movement limiting unit is preferably disposed on one side of the reactor and the inner race.
  • a bush is disposed between the movement limiting portion and the inner race.
  • the outer race is preferably processed by press working and high frequency heat treatment.
  • the present invention is used in the one-way clutch to limit the movement of the one-way clutch in the axial direction by providing a movement limiting portion extending a portion of the bearing fixing member for fixing the bearings arranged in the circumferential direction
  • productivity can be improved by reducing the number of parts.
  • the present invention has the effect of reducing the cost by manufacturing the outer race by the high-frequency heat treatment method of the press work.
  • FIG. 1 is a cross-sectional view of a torque converter for explaining an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view showing the main part of the vehicle torque converter shown in FIG.
  • FIG. 3 is an enlarged view of the one-way clutch of FIG. 2.
  • FIG. 1 is a half sectional view of a vehicle torque converter cut in an axial direction to explain an embodiment of the present invention.
  • the torque converter according to the embodiment of the present invention is disposed at a position facing the impeller 6 and the impeller 6, which are connected to the crankshaft of the engine to rotate and the front cover 4, which is connected to the front cover 4 to rotate together.
  • Turbine (8) and a reactor located between the impeller (6) and the turbine (8) to divert the flow of oil from the turbine (8) to the impeller (6).
  • the reactor 10 delivering oil to the impeller 6 side has the same center of rotation as the front cover 4.
  • the torque converter of the embodiment of the present invention is provided with a lockup clutch 14 as a means of directly connecting the engine and the transmission.
  • the lockup clutch 14 is arranged between the front cover 4 and the turbine 8.
  • the lockup clutch 14 is formed in a substantially disk shape and has a piston 16 that can move in the axial direction.
  • the torsional damper 20 transmits the driving force transmitted through the lockup clutch 14 to the turbine 8 to absorb the torsional force acting in the rotational direction of the shaft and to damp vibration.
  • the lockup clutch 14 described above comprises a friction plate 33 disposed between the front cover 4 and the piston 16.
  • the friction plate 33 is coupled to the friction material 35 on both sides. Therefore, when the piston 16 moves in the direction toward the front cover 4 by the hydraulic pressure, the lockup clutch 14 is brought into close contact with the front cover 4 and the piston 16 and the front cover 4.
  • the transmitted driving force may be transmitted to the friction plate 33.
  • the drive plate 37 may be engaged with the friction plate 33 of the lockup clutch 14 to receive the driving force of the friction plate 33.
  • the outside spring 39 is arranged in a circumferential direction with respect to the center of rotation and is elastically supported by the drive plate 37.
  • the outside spring 39 preferably consists of a compression coil spring.
  • the first cover plate 41 and the second cover plate 43 may surround the outside spring 39 and may elastically support the outside spring 39.
  • the first cover plate 41 and the second cover plate 43 may be disposed to face each other. That is, the driving force of the drive plate 37 may be transmitted to the first cover plate 41 and the second cover plate 43 through the outside spring 39. In this process, the outside spring 39 may absorb vibration and shock in the rotational direction.
  • the inner spring 45 is supported by the first cover plate 41 and the second cover plate 43 described above and is disposed in the circumferential direction. And the inside spring 45 is preferably disposed on the inner circumferential side of the outside spring 39 around the rotation axis.
  • Inside spring 45 is elastically supported by driven plate 47. That is, the driving force transmitted to the first cover plate 41 and the second cover plate 43 is transmitted to the driven plate 47 through the inside spring 45. In this process, the vibration and impact of the inside spring 45 in the rotational direction can be absorbed again.
  • the driven plate 47 is connected to the spline hub 49.
  • the spline hub 49 may transmit the driving force of the engine to the transmission.
  • the one-way clutch 51 is coupled to the central axis of rotation of the reactor 10.
  • the one-way clutch 51 serves to rotate the reactor 10 only in one direction.
  • the one-way clutch 51 includes an outer race 53, an inner race 55, a bearing fixing member 57, and a bearing 59.
  • the outer race 53 is disposed on the inner circumferential surface of the reactor 10.
  • the inner race 55 is disposed at a position away from the inner circumferential surface of the outer race 53 by a predetermined distance.
  • the bearing fixing member 57 is disposed between the outer race 53 and the inner race 55.
  • the bearing fixing member 57 is provided with a plurality of grooves along the circumferential direction, and the bearing 59 is disposed in this groove.
  • the aforementioned bearing fixing member 57 includes a fixing part 57a, an extension part 57b, and a movement limiting part 57c.
  • the fixing part 57a is provided in a band shape having a constant thickness in the circumferential direction with respect to the rotation axis.
  • grooves into which the above-described bearing 59 is fitted are provided at regular intervals in the circumferential direction so that the bearing 59 is disposed.
  • the extension part 57b is bent and extended in the direction perpendicular to the rotation axis in the fixing part 57a. That is, the extension portion 57b is disposed in a circle in a direction perpendicular to the rotation axis. And the movement limiting portion 57c extends in the radial direction with respect to the rotation axis in the extension portion 57b to limit the movement in the axial direction.
  • the movement limiting portion 57c may be processed by punching a portion of the extension 57b.
  • the movement limiting portion 57c is arranged in a direction in which the four are symmetrical, and has a shape that protrudes radially larger than the outer circumferential surface of the fixing portion 57a.
  • the movement limiting part 57c is disposed on the side of the reactor 10 and the inner race 55. That is, the movement limiting portion 57c serves to limit the movement of the one-way clutch 51 in the axial direction.
  • a bush 61 may be disposed between the movement limiting portion 57c and the inner race 55.
  • the outer race 53 is preferably processed by press working and high frequency heat treatment.
  • the processing method of such an outer race 53 has the effect of reducing the cost.
  • the driving force of the engine is the front cover 4, the impeller 6, the turbine 8, the first cover plate 41 and the second cover plate 43, and the inner spring ( 45), the driven plate 47, and the spline hub 49, the driving force is transmitted to the transmission.
  • the inside spring 45 may absorb vibration and shock in the rotational direction.
  • the piston 16 moves to the front cover 4 side by hydraulic pressure. Then, the friction materials 35 provided on both sides of the friction plate 33 are in close contact with the inside of the front cover 4 and one side of the piston 16, and the driving force of the front cover 4 is transmitted to the friction plate 33. And the driving force transmitted to the friction plate 33 is transmitted to the drive plate 37.
  • the drive plate 37 transmits a driving force to the first cover plate 41 and the second cover plate 43 while compressing the outside spring 39. In this process, the outside spring 39 absorbs vibrations and shocks in the rotation direction with respect to the rotation center.
  • the first cover plate 41 and the second cover plate 43 compress the inside spring 45. Then the inner spring 45 is compressed to transmit the driving force to the driven plate 47. In this process, the inside spring 45 absorbs vibration and shock in the rotational direction based on the rotational center.
  • the driving force transmitted to the driven plate 47 is transmitted to the transmission through the spline hub 49.
  • the movement limiting portion 57c of the bearing fixing member 57 is supported by the outer race 53 to restrict movement in the axial direction.
  • the present invention can omit the retainer, which is a separate part that restricts the movement of the one-way clutch 51 in the axial direction, thereby reducing the number of parts and improving productivity.
  • the present invention processes the outer race 53 by the press working and high frequency heat treatment method, it is possible to reduce the cost by facilitating the manufacturing process.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

L'invention porte sur un convertisseur de couple pour un véhicule, qui améliore la productivité en réduisant le nombre de pièces dans une section, dans laquelle un réacteur et un embrayage à roue libre sont accouplés. Un convertisseur de couple pour un véhicule selon la présente invention comprend : une pompe ; une turbine ; un réacteur ; et un embrayage à roue libre monté dans la surface circonférentielle intérieure du réacteur, l'embrayage à roue libre comprenant : une bague extérieure disposée sur la surface circonférentielle intérieure du réacteur ; une bague intérieure disposée de manière à être espacée d'une distance prédéfinie de la surface circonférentielle intérieure de la bague extérieure ; un élément de fixation de palier disposé entre les bagues extérieure et intérieure ; et une pluralité de paliers disposés dans l'élément de fixation de palier le long de sa circonférence, et l'élément de fixation de palier comprend : une partie de fixation ayant une pluralité de rainures, dans lesquelles une pluralité de paliers sont disposés dans la direction circonférentielle ; une partie étendue s'étendant de la partie fixe et courbée à angle droit, à partir de celle-ci, par rapport à son axe de rotation ; et des parties de limitation de mouvement s'étendant radialement, par rapport à l'axe de rotation, à partir de la partie étendue de manière à limiter un mouvement dans la direction de l'axe.
PCT/KR2013/004687 2012-12-12 2013-05-29 Convertisseur de couple pour véhicule Ceased WO2014092269A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2012-0144727 2012-12-12
KR1020120144727A KR20140076316A (ko) 2012-12-12 2012-12-12 차량용 토크 컨버터

Publications (1)

Publication Number Publication Date
WO2014092269A1 true WO2014092269A1 (fr) 2014-06-19

Family

ID=50934534

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/KR2013/004687 Ceased WO2014092269A1 (fr) 2012-12-12 2013-05-29 Convertisseur de couple pour véhicule
PCT/KR2013/008512 Ceased WO2014092307A1 (fr) 2012-12-12 2013-09-24 Convertisseur de couple pour véhicule

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/008512 Ceased WO2014092307A1 (fr) 2012-12-12 2013-09-24 Convertisseur de couple pour véhicule

Country Status (2)

Country Link
KR (1) KR20140076316A (fr)
WO (2) WO2014092269A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015010837A1 (fr) * 2013-07-23 2015-01-29 Zf Friedrichshafen Ag Élément de démarrage pour un véhicule automobile

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102270056B1 (ko) * 2018-12-28 2021-06-28 주식회사 카펙발레오 차량용 토크 컨버터
KR102522520B1 (ko) * 2023-01-11 2023-04-17 이영석 전동 어시스트 운반 장치
KR102620031B1 (ko) * 2023-10-19 2024-01-02 이영석 원심클러치를 이용한 전동식 이동대차

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445255A (en) * 1993-07-08 1995-08-29 Borg-Warner Automotive, Inc. Sprag one-way clutch with inertia resistance members
JPH09112650A (ja) * 1995-10-20 1997-05-02 Exedy Corp トルクコンバータ
JP2004132526A (ja) * 2002-10-15 2004-04-30 Toyota Motor Corp ステータの支持装置およびそれを含むトルクコンバータ
JP2008175372A (ja) * 2007-01-22 2008-07-31 Exedy Corp 一方向クラッチの支持構造
KR20120057930A (ko) * 2010-11-29 2012-06-07 현대 파워텍 주식회사 유성기어장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010006154A1 (fr) * 2008-07-10 2010-01-14 Gkn Sinter Metals, Inc. Dispositif de maintien de roue libre
KR20110007432A (ko) * 2009-07-16 2011-01-24 한국파워트레인 주식회사 차량용 토크 컨버터

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445255A (en) * 1993-07-08 1995-08-29 Borg-Warner Automotive, Inc. Sprag one-way clutch with inertia resistance members
JPH09112650A (ja) * 1995-10-20 1997-05-02 Exedy Corp トルクコンバータ
JP2004132526A (ja) * 2002-10-15 2004-04-30 Toyota Motor Corp ステータの支持装置およびそれを含むトルクコンバータ
JP2008175372A (ja) * 2007-01-22 2008-07-31 Exedy Corp 一方向クラッチの支持構造
KR20120057930A (ko) * 2010-11-29 2012-06-07 현대 파워텍 주식회사 유성기어장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015010837A1 (fr) * 2013-07-23 2015-01-29 Zf Friedrichshafen Ag Élément de démarrage pour un véhicule automobile

Also Published As

Publication number Publication date
WO2014092307A1 (fr) 2014-06-19
KR20140076316A (ko) 2014-06-20

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