WO2014024832A1 - ワンウェイプレート及びそれを用いたトルクコンバータのステータ支持構造 - Google Patents
ワンウェイプレート及びそれを用いたトルクコンバータのステータ支持構造 Download PDFInfo
- Publication number
- WO2014024832A1 WO2014024832A1 PCT/JP2013/071128 JP2013071128W WO2014024832A1 WO 2014024832 A1 WO2014024832 A1 WO 2014024832A1 JP 2013071128 W JP2013071128 W JP 2013071128W WO 2014024832 A1 WO2014024832 A1 WO 2014024832A1
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- WIPO (PCT)
- Prior art keywords
- stator
- support structure
- torque converter
- way plate
- claws
- Prior art date
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
-
- 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
- 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
Definitions
- the present invention relates to a one-way plate used for regulating the direction of rotation.
- the present invention also relates to a stator support structure that uses this one-way plate to connect a stator of a torque converter to a fixed shaft.
- the torque converter is a device that has an impeller, a turbine, and a stator inside, and transmits power by an internal fluid.
- the direction of the fluid flowing from the turbine to the impeller is adjusted by the stator.
- a large torque ratio is obtained when the impeller rotates at a high speed and the turbine rotates at a low speed, and the torque ratio decreases as the rotational speeds of the two approaches.
- a stator is composed of an annular stator carrier and a plurality of blades fixed to the outer periphery of the stator carrier. Then, until the rotational speed of the turbine approaches the rotational speed of the impeller, the fluid strikes the concave surface of the stator blade. At this time, rotation of the stator is prohibited. When the rotational speed of the turbine becomes high and the fluid comes into contact with the back surface or the convex surface of the blade, the flow of the fluid changes and the resistance increases. Therefore, the rotation of the stator is allowed to eliminate the resistance.
- a one-way clutch is used to prohibit or permit the rotation of the stator depending on the direction of fluid flow.
- a conventional general one-way clutch includes an inner race, an outer race, and a locking member.
- the inner race is connected to a fixed shaft.
- the outer race is fixed to the inner periphery of the stator carrier by press fitting or the like.
- the locking member is formed by a ratchet claw, a roller or the like disposed between the races.
- a stator support structure as shown in Patent Document 1 is provided for the purpose of downsizing in the axial direction.
- a pair of surfaces facing each other in the axial direction are formed, and a one-way clutch is disposed between these surfaces.
- Patent Document 1 In the configuration shown in Patent Document 1, it is possible to reduce the size in the axial direction. However, the number of parts has not been reduced. Further, it is impossible to reduce the size in the radial direction.
- An object of the present invention is to reduce the number of parts and reduce the size in the radial direction in a structure for supporting a stator.
- the stator support structure for a torque converter is a structure for supporting the stator of the torque converter on a fixed shaft, and includes an inner race and an annular one-way plate.
- the inner race is connected to the fixed shaft so as not to be relatively rotatable, and has a plurality of protrusions on the outer peripheral surface.
- the annular one-way plate is provided on the inner peripheral surface of the stator so as not to be relatively rotatable, and has a plurality of claws.
- the stator and the inner race are allowed to rotate relative to each other by elastically deforming in the radial direction so as to get over the plurality of protrusions.
- a one-way plate is provided between the stator and the inner race.
- a plurality of claws are formed on the one-way plate.
- the stator rotates in the first direction
- the plurality of claws abut on the first end surfaces of the plurality of protrusions provided on the inner race, and relative rotation between the stator and the inner race is prohibited.
- the stator rotates in the second direction
- the plurality of claws elastically deform so as to get over the plurality of protrusions. For this reason, relative rotation between the stator and the inner race is allowed.
- the rotation of the stator can be restricted with a single component.
- the radial dimension is shortened.
- the one-way plate can be formed by sheet metal processing, the cost can be reduced.
- the stator support structure of the torque converter according to the second aspect of the present invention is the stator support structure of the first side face, wherein the plurality of claws have a predetermined width and a rotational direction at the central portion of the axial width of the one-way plate. One end of each is cut down to the inner peripheral side.
- the stator support structure of the torque converter according to the third aspect of the present invention is the stator support structure of the first or second aspect, wherein a plurality of recesses are formed on the inner peripheral surface of the stator, and the one-way plate is A plurality of detents that are bent outward and engage with the recesses are provided.
- the one-way plate is subjected to sheet metal processing to form a claw for preventing rotation, the manufacturing cost can be reduced.
- the stator support structure of the torque converter according to the fourth aspect of the present invention is the same as the stator support structure of the third aspect, wherein the claw for preventing rotation is formed to face both axial sides of the one-way plate.
- the one-way plate according to the fifth aspect of the present invention includes an annular plate body, a plurality of first claws, and a plurality of second claws.
- the annular plate body has a predetermined width in the axial direction.
- the plurality of first claws are provided at predetermined intervals in the circumferential direction at the central portion of the axial width of the plate body, and one end side in the circumferential direction is bent toward the inner circumferential side and can be elastically deformed.
- the plurality of second claws are provided at predetermined intervals in the circumferential direction at end portions in the axial direction of the plate body, and one end side in the circumferential direction is bent toward the outer circumferential side.
- the number of parts can be reduced and the radial size can be reduced.
- an inexpensive one-way plate that functions as a one-way clutch can be provided.
- FIG. 4 is a sectional view taken along line IV-IV in FIG. 3.
- FIG. 1 shows a part of a torque converter employing a stator support structure according to an embodiment of the present invention.
- OO is the rotation center line.
- the torque converter 1 has a torque converter body 2 and a lock-up clutch 3 (only a part is shown).
- the torque converter main body 2 includes an impeller 5 and a turbine 6 that are disposed to face each other, and a stator 7.
- the lockup clutch 3 includes a piston 8 and the like.
- the stator 7 is a mechanism for rectifying hydraulic fluid that is disposed between the impeller 5 and the inner peripheral portion of the turbine 6 and returns from the turbine 6 to the impeller 5.
- the stator 7 is mainly composed of a disk-shaped stator carrier 10 and a plurality of stator blades 11 provided on the outer peripheral surface thereof.
- the stator carrier 10 is connected to a fixed shaft 13 via a one-way plate 12. Thrust washers 15 and 16 are provided between the turbine 6 and the stator carrier 10 and between the stator carrier 10 and the impeller 5, respectively.
- stator support structure A support structure for supporting the stator 7 on the fixed shaft 13 will be described.
- the stator support structure includes an inner race 20 and a one-way plate 12.
- the inner race 20 is an annular member as shown in FIGS. 1 and 2 (a part of FIG. 1 is shown).
- a plurality of protrusions 23 are formed on the outer peripheral surface of the inner race 20. That is, a plurality of protrusions 23 are formed on the outer peripheral surface of the inner race 20, and a recess 24 is formed between adjacent protrusions 23.
- the first end surface 23a in the rotation direction of each protrusion 23 extends substantially radially.
- the second end surface 23b on the opposite side of each projection 23 has an inclined surface 23c formed at the corner on the outer peripheral side.
- a spline hole 25 is formed on the inner peripheral surface of the inner race 20.
- a spline shaft 13 a is formed on the outer peripheral surface of the fixed shaft 13, and the spline shaft 13 a is engaged with the spline hole 25 of the inner race 20.
- the one-way plate 12 is disposed on the inner peripheral surface of the stator carrier 10. More specifically, an annular groove 10 a having a predetermined width in the axial direction is formed on the inner peripheral surface of the stator carrier 10. A one-way plate 12 is inserted into the annular groove 10a. Further, a deeper groove is formed in a part of the annular groove 10a, and a claw for preventing rotation of the one-way plate 12 described later is engaged with this groove. Therefore, the one-way plate 12 is prohibited from rotating relative to the stator carrier 10.
- the one-way plate 12 is formed by connecting strip-shaped plates in an annular shape by welding or the like.
- the one-way plate 12 includes a plate body 30, a plurality of one-way claws (first claws) 31, and a plurality of anti-rotation claws (second claws) 32.
- the claws 31 and 32 are formed at predetermined intervals in the circumferential direction.
- the plate body 30 has a predetermined width in the axial direction and is formed in an annular shape as described above.
- the one-way claw 31 is formed by cutting out a part of the central portion of the plate body 30 in the axial direction and bending one end side in the circumferential direction to the inner peripheral side. As shown in FIG. 2, these one-way claws 31 are inserted into the recesses 24 of the inner race 20, and the distal ends in the circumferential direction can contact the first end surface 23 a of the protrusion 23.
- the one-way claw 31 can be elastically deformed radially outward.
- the anti-rotation claw 32 is arranged between the two one-way claws 31 in the circumferential direction.
- the anti-rotation claw 32 is disposed so as to oppose both end portions of the plate body 30 in the axial direction, and is formed by bending one end side in the circumferential direction to the outer peripheral side.
- the anti-rotation claw 32 is engaged with a groove formed on the inner peripheral surface of the stator carrier 10.
- the stator carrier 10 receives a rotational force in the direction of arrow B in FIG.
- the one-way claw 31 of the one-way plate 12 rides on the inclined surface 23c formed on the second end surface of the protrusion 23 and elastically deforms radially outward. That is, the one-way pawl 31 gets over the protrusion 23, and the stator carrier 10 is allowed to rotate relative to the inner race 20. Accordingly, the rotation of the stator 7 is allowed, and the fluid returned from the turbine 6 to the impeller 5 can be prevented from receiving the resistance of the blade 11.
- the one-way plate 12 can be manufactured by molding a single belt-like plate, and the cost can be kept low.
- the configuration for fixing the one-way plate 12 to the inner surface of the stator carrier is not limited to the above embodiment. Also, the dimensions of each part are only an example.
- the specific shapes and arrangements of the one-way claw 31 and the rotation-preventing claw 32 are not limited to the above embodiment.
- the stator support structure for a torque converter according to the present invention can reduce the number of components and reduce the size in the radial direction.
- an inexpensive one-way plate that functions as a one-way clutch can be provided.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
トルクコンバータ1は、トルクコンバータ本体2と、ロックアップクラッチ3(一部のみ示している)と、を有している。トルクコンバータ本体2は、互いに対向して配置されたインペラ5及びタービン6と、ステータ7と、を有している。また、ロックアップクラッチ3はピストン8等を有している。
ステータ7を固定シャフト13に支持するための支持構造について説明する。ステータ支持構造は、インナーレース20と、ワンウェイプレート12と、を有している。
図3及び図4にワンウェイプレート12の詳細を示している。図4は図3のIV-IV線断面図である。
インペラ5が高速で回転しタービン6が低速で回転するときには、流体がステータ7のブレード11の凹面に衝突し、これによりステータキャリア10は図2の矢印A方向への回転力を受ける。この場合には、ステータキャリア10に設けられたワンウェイプレート12のワンウェイ用爪31がインナーレース20の突起23の第1端面23aに当接する。インナーレース20は固定シャフト13に連結されているので、結局、ステータ7の回転は禁止される。このため、タービン6からインペラ5に流れる流体の方向がステータ7によって調整され、大きなトルク比が得られる。
(1)従来のワンウェイクラッチの機能を、インナーレース20とワンウェイプレート12のみで実現している。このため、従来構造に比較して部品点数を削減できる。
本発明は以上のような実施形態に限定されるものではなく、本発明の範囲を逸脱することなく種々の変形又は修正が可能である。
5 インペラ
6 タービン
7 ステータ
10 ステータキャリア
12 ワンウェイプレート
13 固定シャフト
20 インナーレース
23 突起
23a 第1端面
30 プレート本体
31ワンウェイ用爪(第1爪)
32 回り止め用爪(第2爪)
Claims (5)
- トルクコンバータのステータを固定シャフトに支持するためのステータ支持構造であって、
前記固定シャフトに相対回転不能に連結され、外周面に複数の突起を有するインナーレースと、
前記ステータの内周面に相対回転不能に設けられ、複数の爪を有する環状のワンウェイプレートと、
を備え、
前記複数の爪は、前記ステータが第1方向に回転する際には前記複数の突起の回転方向の第1端面に当接して前記ステータと前記インナーレースとの相対回転を禁止し、前記ステータが第2方向に回転する際には前記複数の突起を乗り越えるように径方向に弾性変形して前記ステータと前記インナーレースとの相対回転を許容する、
トルクコンバータのステータ支持構造。 - 前記複数の爪は、前記ワンウェイプレートの軸方向の幅の中央部に、所定の幅で、かつ回転方向の一端が内周側に切り下げられて形成されている、請求項1に記載のトルクコンバータのステータ支持構造。
- 前記ステータの内周面には複数の凹部が形成されており、
前記ワンウェイプレートは、径方向外方に折り曲げられて前記凹部に係合する複数の回り止め用の爪を有している、
請求項1又は2に記載のトルクコンバータのステータ支持構造。 - 前記回り止め用の爪は、前記ワンウェイプレートの軸方向両側に対向して形成されている、請求項3に記載のトルクコンバータのステータ支持構造。
- 軸方向に所定の幅を有する環状のプレート本体と、
前記プレート本体の軸方向の幅の中央部に、周方向に所定の間隔で設けられ、周方向の一端側が内周側に折り曲げられて弾性変形可能な複数の第1爪と、
前記プレート本体の軸方向の端部に、周方向に所定の間隔で設けられ、周方向の一端側が外周側に折り曲げられて形成された複数の第2爪と、
を備えたワンウェイプレート。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/410,831 US20150128582A1 (en) | 2012-08-07 | 2013-08-05 | One-way plate and stator support structure for torque converter using same |
CN201380038479.1A CN104471285A (zh) | 2012-08-07 | 2013-08-05 | 单向板及使用其的液力变矩器的定子支撑结构 |
KR20157001074A KR20150040852A (ko) | 2012-08-07 | 2013-08-05 | 원웨이 플레이트 및 이것을 사용한 토크 컨버터의 스테이터 지지 구조 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012174733A JP2014034980A (ja) | 2012-08-07 | 2012-08-07 | ワンウェイプレート及びそれを用いたトルクコンバータのステータ支持構造 |
JP2012-174733 | 2012-08-07 |
Publications (1)
Publication Number | Publication Date |
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WO2014024832A1 true WO2014024832A1 (ja) | 2014-02-13 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2013/071128 WO2014024832A1 (ja) | 2012-08-07 | 2013-08-05 | ワンウェイプレート及びそれを用いたトルクコンバータのステータ支持構造 |
Country Status (5)
Country | Link |
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US (1) | US20150128582A1 (ja) |
JP (1) | JP2014034980A (ja) |
KR (1) | KR20150040852A (ja) |
CN (1) | CN104471285A (ja) |
WO (1) | WO2014024832A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9903455B2 (en) * | 2015-03-17 | 2018-02-27 | Schaeffler Technologies AG & Co. KG | Torque converter thrust assembly connecting stator and impeller |
US10054207B2 (en) * | 2015-11-19 | 2018-08-21 | Valeo Embrayages | Torque converter for a motor vehicle |
US9951852B2 (en) * | 2016-01-04 | 2018-04-24 | Schaeffler Technologies AG & Co. KG | Torque converter stator including pocket |
KR102038826B1 (ko) * | 2018-04-03 | 2019-10-31 | 주식회사 카펙발레오 | 차량용 토크 컨버터 |
KR102715576B1 (ko) * | 2018-12-27 | 2024-10-11 | 주식회사 카펙발레오 | 원웨이 클러치 |
KR102270679B1 (ko) | 2019-11-13 | 2021-06-28 | 주식회사 카펙발레오 | 원웨이 클러치 및 이를 구비하는 토크 컨버터 |
KR102300543B1 (ko) | 2020-01-22 | 2021-09-08 | 주식회사 카펙발레오 | 원웨이 클러치 및 이를 구비하는 토크 컨버터 |
KR102330392B1 (ko) | 2020-05-19 | 2021-11-22 | 주식회사 카펙발레오 | 원웨이클러치 및 이를 포함하는 토크컨버터 |
KR102190070B1 (ko) | 2020-05-25 | 2020-12-11 | 주식회사 카펙발레오 | 원웨이 클러치 및 이를 구비하는 토크 컨버터 |
KR102198613B1 (ko) | 2020-05-25 | 2021-01-05 | 주식회사 카펙발레오 | 원웨이 클러치 및 이를 구비하는 토크 컨버터 |
KR20220015720A (ko) | 2020-07-31 | 2022-02-08 | 주식회사 카펙발레오 | 캔틸레버를 이용한 원웨이클러치 및 이를 포함하는 토크컨버터 |
KR102391172B1 (ko) | 2020-10-08 | 2022-04-26 | 주식회사 카펙발레오 | 원웨이 클러치 및 이를 구비하는 토크 컨버터 |
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JPS6152732U (ja) * | 1984-09-11 | 1986-04-09 | ||
JP2000274457A (ja) * | 1999-02-26 | 2000-10-03 | Borg Warner Automot Inc | ワンウェイラチェットクラッチ組立体 |
JP2001330104A (ja) * | 2000-05-22 | 2001-11-30 | Exedy Corp | ステータ組立体 |
US7703590B2 (en) * | 2006-05-01 | 2010-04-27 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Torque converter with turbine one-way clutch |
US20100116614A1 (en) * | 2008-11-07 | 2010-05-13 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Ratcheting one-way clutch |
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US5855263A (en) * | 1996-12-20 | 1999-01-05 | Eaton Corporation | One-way clutch and torque converter stator |
US5918461A (en) * | 1997-07-14 | 1999-07-06 | Mannesmann Sachs Ag | Stator assembly having single direction anti-rotation device |
DE10017744A1 (de) * | 2000-04-10 | 2001-10-11 | Mannesmann Sachs Ag | Freilaufanordnung, insbesondere für ein Leitrad eines hydrodynamischen Drehmomentwandlers |
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2012
- 2012-08-07 JP JP2012174733A patent/JP2014034980A/ja active Pending
-
2013
- 2013-08-05 WO PCT/JP2013/071128 patent/WO2014024832A1/ja active Application Filing
- 2013-08-05 CN CN201380038479.1A patent/CN104471285A/zh active Pending
- 2013-08-05 KR KR20157001074A patent/KR20150040852A/ko not_active Application Discontinuation
- 2013-08-05 US US14/410,831 patent/US20150128582A1/en not_active Abandoned
Patent Citations (5)
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JPS6152732U (ja) * | 1984-09-11 | 1986-04-09 | ||
JP2000274457A (ja) * | 1999-02-26 | 2000-10-03 | Borg Warner Automot Inc | ワンウェイラチェットクラッチ組立体 |
JP2001330104A (ja) * | 2000-05-22 | 2001-11-30 | Exedy Corp | ステータ組立体 |
US7703590B2 (en) * | 2006-05-01 | 2010-04-27 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Torque converter with turbine one-way clutch |
US20100116614A1 (en) * | 2008-11-07 | 2010-05-13 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Ratcheting one-way clutch |
Also Published As
Publication number | Publication date |
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CN104471285A (zh) | 2015-03-25 |
JP2014034980A (ja) | 2014-02-24 |
KR20150040852A (ko) | 2015-04-15 |
US20150128582A1 (en) | 2015-05-14 |
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