WO2019159912A1 - Power-transmitting device - Google Patents

Power-transmitting device Download PDF

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Publication number
WO2019159912A1
WO2019159912A1 PCT/JP2019/004923 JP2019004923W WO2019159912A1 WO 2019159912 A1 WO2019159912 A1 WO 2019159912A1 JP 2019004923 W JP2019004923 W JP 2019004923W WO 2019159912 A1 WO2019159912 A1 WO 2019159912A1
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WIPO (PCT)
Prior art keywords
clutch
power transmission
oil pump
clutch device
input shaft
Prior art date
Application number
PCT/JP2019/004923
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French (fr)
Japanese (ja)
Inventor
健宏 江浪
Original Assignee
いすゞ自動車株式会社
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.)
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Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Priority to CN201980013182.7A priority Critical patent/CN111712394B/en
Publication of WO2019159912A1 publication Critical patent/WO2019159912A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • 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
    • F16H41/30—Details relating to venting, lubrication, cooling, circulation of the cooling medium

Definitions

  • the present disclosure relates to a power transmission device provided between a drive source and a transmission and having a clutch device.
  • a power transmission device having a clutch device that is provided between a drive source and a transmission and connects and disconnects the power transmission from the drive source to the transmission is known (for example, see Patent Document 1).
  • a control valve for controlling the operation of the clutch device is arranged radially outside the clutch device so as to overlap the clutch device in the radial direction.
  • the objective of this indication is providing the power transmission device which can shorten axial direction length.
  • a power transmission device includes a clutch device that connects and disconnects power transmission from a drive source to an input shaft of a transmission, a control valve that controls operation of the clutch device, and hydraulic oil that is supplied to the control valve.
  • An oil pump to be supplied, and the control valve and the oil pump are arranged radially outside the clutch device so as to overlap the clutch device in the radial direction.
  • the axial length can be shortened.
  • Drawing 1 is a typical fragmentary sectional view showing the power transmission device concerning an embodiment.
  • FIG. 1 is a schematic partial cross-sectional view of a power transmission device 1 according to the embodiment.
  • a power transmission device 1 illustrated in FIG. 1 includes a housing 10, a torque converter 20, and a clutch device 30.
  • the housing 10 accommodates the torque converter 20 and the clutch device 30.
  • the housing 10 is a substantially cylindrical member integrally formed by aluminum die casting, for example, and includes a peripheral wall portion 11.
  • the housing 10 is open on one side in the axial direction (left side in FIG. 1) and includes a partition wall 12 on the other side (right side in FIG. 1).
  • An intermediate wall 13 is provided at an intermediate portion in the axial direction of the housing 10.
  • the housing 10 is partitioned into a torque converter accommodation chamber 14 and a clutch accommodation chamber 15 by an intermediate wall 13.
  • the housing 10 may be divided and connected in place of the integrally formed structure.
  • the torque converter 20 transmits power from the engine to the clutch device 30.
  • the torque converter 20 is for directly connecting the pump 21 connected to the output shaft of the engine, the turbine 22 connected to the input shaft 31 of the clutch device 30, the stator (not shown), and the pump 21 and the turbine 22. And a lock-up clutch 24.
  • the torque converter 20 is disposed in the torque converter housing chamber 14 of the housing 10.
  • the torque converter 20 may be a fluid coupling that does not have a stator.
  • the torque converter 20 may not have the lockup clutch 24. Further, the torque converter 20 may be omitted.
  • the clutch device 30 connects and disconnects transmission of engine power transmitted through the torque converter 20 to the transmission.
  • the clutch device 30 is a hydraulically operated wet multi-plate clutch.
  • the present invention is not limited to this.
  • the transmission disposed at the rear stage of the clutch device 30 is a dual clutch transmission having a first input shaft 41 and a second input shaft 42.
  • the clutch device 30 is provided on the other side in the axial direction with respect to the first clutch for connecting and disconnecting power transmission from the input shaft 31 to the first input shaft 41 of the transmission, and from the input shaft 31 to the transmission of the transmission. And a second clutch for connecting and disconnecting power transmission to the second input shaft.
  • FIG. 1 only the outer diameter shape of the clutch device 30 is shown, and the internal structure of the clutch device 30 is omitted.
  • One side of the clutch device 30 has a small diameter portion 32, and a hydraulic piston is disposed in the small diameter portion 32. That is, the small diameter portion 32 constitutes a piston arrangement portion in the clutch device 30.
  • the other side of the clutch device 30 is a large diameter portion 33, and a plurality of clutch plates are arranged in the large diameter portion 33. That is, the large diameter portion 33 constitutes a clutch plate arrangement portion in the clutch device 30.
  • the intermediate wall 13 of the housing 10 is attached to the peripheral wall portion 11 by a fixing means such as a bolt.
  • the intermediate wall 13 is provided with a plurality of valves for controlling the operation of the lockup clutch 24, the operation of the clutch device 30 and the supply of lubricating oil to the clutch device 30, and a hydraulic oil passage is formed. .
  • FIG. 1 a hydraulic oil passage 51 through which hydraulic oil 80 (described later) discharged from an oil pump 50 (described later) flows and a clutch control valve 70 (described later) that controls the operation of the clutch device 30 are illustrated.
  • the hydraulic oil passage 52 is shown.
  • the intermediate wall 13 has a first wall member located on one side, a second wall member located on the other side, and a partition plate sandwiched between the first wall member and the second wall member.
  • a hydraulic oil passage is formed by the groove provided on the other side surface of the first wall member, the groove provided on one side surface of the second wall member, and the partition plate.
  • the oil pump drive mechanism 60 includes a sprocket 61 provided on the hollow shaft 25 extending from the pump 21 of the torque converter 20 to the other side, a second sprocket 62 provided on the pump drive shaft 53 of the oil pump 50, and a sprocket. 61 and a chain 63 spanned between the second sprocket 62.
  • the sprocket 61, the second sprocket 62, and the chain 63 are arranged in a space 64 formed in the intermediate wall 13.
  • the oil pump 50 is provided so as to protrude from the intermediate wall 13 to the other side.
  • the oil pump 50 is disposed on the radially outer side of the clutch device 30 so as to overlap the clutch device 30 in the radial direction. More specifically, the oil pump 50 is disposed radially outside the large diameter portion 33 of the clutch so as to overlap the small diameter portion 32 and the large diameter portion 33 in the radial direction.
  • the oil pump 50 is located on the lower side in the vertical direction than the input shaft 31 of the clutch device 30. As shown in FIG. 1, the oil pump 50 is immersed in the hydraulic oil 80. That is, in the oil pump 50, the suction oil passage itself exists in the liquid of the hydraulic oil 80. Therefore, it is possible to suitably prevent air from being caught. Further, since the suction oil passage can be shortened, the suction resistance can be reduced.
  • the axial length of the oil pump 50 can be increased as necessary. Can be increased. Therefore, the capacity of the oil pump 50 can be increased without increasing the axial length of the power transmission device 1.
  • the clutch control valve 70 has a spool 72 accommodated in a valve accommodating portion 71 provided so as to protrude from the intermediate wall 13 to the other side. As shown in FIG. 1, the axial direction of the spool 72 is a direction orthogonal to the axial direction of the input shaft 31 of the clutch device 30.
  • the hydraulic oil 80 sent from the oil pump 50 is supplied to the clutch control valve 70, and supply / disconnection to the clutch device 30 is switched according to an instruction from a control unit (not shown).
  • the clutch control valve 70 is disposed on the radially outer side of the clutch device 30 so as to overlap the clutch device 30 in the radial direction. More specifically, the clutch control valve 70 is disposed on the radially outer side of the small diameter portion 32 of the clutch device 30 so as to overlap the small diameter portion 32 in the radial direction, and when viewed from the axial direction, the clutch device. 30 so as to overlap.
  • the distance L1 from the axis of the input shaft 31 to the position closest to the axis of the clutch control valve 70 is the distance from the axis of the input shaft 31 to the outer peripheral portion of the small diameter portion 32 of the clutch device 30. Longer than L2. The distance L1 is shorter than the distance L3 from the axis of the input shaft 31 to the outer peripheral portion of the large-diameter portion 33 of the clutch device 30.
  • the clutch control valve 70 can be disposed closer to the axis of the input shaft 31, and the dimensional expansion in the radial direction can be suppressed.
  • the clutch control valve 70 may be disposed on the radially outer side than the outermost diameter of the clutch device 30.
  • the power transmission device 1 includes the clutch device 30 that connects and disconnects the power transmission from the engine to the input shaft of the transmission, and the clutch control valve 70 that controls the operation of the clutch device 30. And an oil pump 50 that supplies hydraulic oil to the clutch control valve 70.
  • the clutch control valve 70 and the oil pump 50 are arranged radially outside the clutch device 30 so as to overlap the clutch device 30 in the radial direction.
  • the axial length of the power transmission device can be shortened as compared with the case where the oil pump is arranged on one side of the clutch.
  • the oil pump 50 is located on the lower side in the vertical direction than the input shaft 31 of the clutch device 30. Thereby, a suction oil path can be shortened. Therefore, the suction resistance of the oil pump 50 can be reduced. Further, since the suction oil passage can be immersed in the hydraulic oil 80, air entrainment during suction can be suitably prevented.
  • the clutch device 30 is connected to a dual clutch transmission having the first input shaft 41 and the second input shaft 42, and interrupts power transmission from the input shaft 31 to the first input shaft 41.
  • the first clutch is in contact with the first clutch
  • the second clutch is provided on the other side in the axial direction than the first clutch and connects and disconnects power transmission from the input shaft 31 to the second input shaft.
  • the axial length of the power transmission device is increased.
  • the required oil amount can be ensured by increasing the capacity of the oil pump.
  • the clutch device including the first clutch and the second clutch corresponding to the dual clutch transmission has been described as an example of the clutch device, but is not limited thereto.
  • the clutch device may include a single clutch.
  • the axial length can be shortened and the industrial applicability is great.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • General Details Of Gearings (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

A power-transmitting device (1) is provided with: a clutch device (30) for permitting and preventing the transmission of power from a drive source to the input shaft of a transmission; a clutch control valve (70) for controlling the operation of the clutch device (30); and an oil pump (50) for supplying operating oil to the clutch control valve (70). The clutch control valve (70) and the oil pump (50) are positioned further toward the outer diameter side than the clutch device (30) so as to overlap the clutch device (30) in a radial direction.

Description

動力伝達装置Power transmission device
　本開示は、駆動源と変速機との間に設けられ、クラッチ装置を有する動力伝達装置に関する。 The present disclosure relates to a power transmission device provided between a drive source and a transmission and having a clutch device.
　従来、駆動源と変速機との間に設けられ、駆動源から変速機への動力伝達を断接するクラッチ装置を有する動力伝達装置が知られている（例えば、特許文献１を参照）。特許文献１に記載の動力伝達装置では、クラッチ装置の動作を制御するコントロールバルブを、クラッチ装置よりも径方向外側に、クラッチ装置と径方向に重なるように配置している。 Conventionally, a power transmission device having a clutch device that is provided between a drive source and a transmission and connects and disconnects the power transmission from the drive source to the transmission is known (for example, see Patent Document 1). In the power transmission device described in Patent Document 1, a control valve for controlling the operation of the clutch device is arranged radially outside the clutch device so as to overlap the clutch device in the radial direction.
日本国特開２００１－２４１５２９号公報Japanese Patent Laid-Open No. 2001-241529
　近年、動力伝達装置の更なる小型化が望まれている。本開示の目的は、軸方向長さを短縮することができる動力伝達装置を提供することである。 In recent years, further miniaturization of power transmission devices has been desired. The objective of this indication is providing the power transmission device which can shorten axial direction length.
　本開示の一態様に係る動力伝達装置は、駆動源から変速機の入力軸への動力伝達を断接するクラッチ装置と、前記クラッチ装置の動作を制御する制御バルブと、前記制御バルブへ作動油を供給するオイルポンプと、を備え、前記制御バルブおよび前記オイルポンプは、前記クラッチ装置よりも径方向外側に、前記クラッチ装置と径方向に重なるように配置されている。 A power transmission device according to an aspect of the present disclosure includes a clutch device that connects and disconnects power transmission from a drive source to an input shaft of a transmission, a control valve that controls operation of the clutch device, and hydraulic oil that is supplied to the control valve. An oil pump to be supplied, and the control valve and the oil pump are arranged radially outside the clutch device so as to overlap the clutch device in the radial direction.
　本開示に係る動力伝達装置によれば、軸方向長さを短縮することができる。 According to the power transmission device according to the present disclosure, the axial length can be shortened.
図１は、実施形態に係る動力伝達装置を示す模式的な部分断面図である。 Drawing 1 is a typical fragmentary sectional view showing the power transmission device concerning an embodiment.
　以下、本開示の実施形態について、図面を参照して詳細に説明する。なお、以下に説明する実施形態は一例であり、本開示はこの実施形態により限定されるものではない。 Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The embodiment described below is an example, and the present disclosure is not limited to this embodiment.
　図１には、実施形態に係る動力伝達装置１の模式的な部分断面図が示されている。図１に示す動力伝達装置１は、ハウジング１０と、トルクコンバータ２０と、クラッチ装置３０とを有している。 FIG. 1 is a schematic partial cross-sectional view of a power transmission device 1 according to the embodiment. A power transmission device 1 illustrated in FIG. 1 includes a housing 10, a torque converter 20, and a clutch device 30.
　ハウジング１０は、トルクコンバータ２０およびクラッチ装置３０を収容する。ハウジング１０は、例えばアルミダイキャストによって一体成形された略円筒形状の部材であり、周壁部１１を備える。 The housing 10 accommodates the torque converter 20 and the clutch device 30. The housing 10 is a substantially cylindrical member integrally formed by aluminum die casting, for example, and includes a peripheral wall portion 11.
　また、ハウジング１０は、軸方向における一側（図１における左側）が開放され、他側（図１における右側）に仕切り壁１２を備えている。ハウジング１０の軸方向における中間部には、中間壁１３が設けられている。 Further, the housing 10 is open on one side in the axial direction (left side in FIG. 1) and includes a partition wall 12 on the other side (right side in FIG. 1). An intermediate wall 13 is provided at an intermediate portion in the axial direction of the housing 10.
　ハウジング１０は、中間壁１３によって、トルクコンバータ収容室１４と、クラッチ収容室１５とに区画されている。なお、ハウジング１０は、一体成形された構成に代えて、分割形成され連結された構成でもよい。 The housing 10 is partitioned into a torque converter accommodation chamber 14 and a clutch accommodation chamber 15 by an intermediate wall 13. In addition, the housing 10 may be divided and connected in place of the integrally formed structure.
　トルクコンバータ２０は、エンジンからの動力をクラッチ装置３０に伝達する。トルクコンバータ２０は、エンジンの出力軸と連結されるポンプ２１と、クラッチ装置３０の入力軸３１と連結されるタービン２２と、ステータ（不図示）と、ポンプ２１とタービン２２とを直結するためのロックアップクラッチ２４とを有する。 The torque converter 20 transmits power from the engine to the clutch device 30. The torque converter 20 is for directly connecting the pump 21 connected to the output shaft of the engine, the turbine 22 connected to the input shaft 31 of the clutch device 30, the stator (not shown), and the pump 21 and the turbine 22. And a lock-up clutch 24.
　トルクコンバータ２０は、ハウジング１０のトルクコンバータ収容室１４内に配置される。なお、トルクコンバータ２０は、ステータを有しない流体継手でもよい。また、トルクコンバータ２０は、ロックアップクラッチ２４を有しないものでもよい。さらに、トルクコンバータ２０は、省略されてもよい。 The torque converter 20 is disposed in the torque converter housing chamber 14 of the housing 10. The torque converter 20 may be a fluid coupling that does not have a stator. The torque converter 20 may not have the lockup clutch 24. Further, the torque converter 20 may be omitted.
　クラッチ装置３０は、トルクコンバータ２０を介して伝達されたエンジン動力の変速機への伝達を断接する。クラッチ装置３０は、油圧作動式の湿式多板クラッチである。なお、これには限定されない。また、本実施形態では、クラッチ装置３０の後段に配置される変速機は、第１入力軸４１および第２入力軸４２を有するデュアルクラッチ式変速機である。 The clutch device 30 connects and disconnects transmission of engine power transmitted through the torque converter 20 to the transmission. The clutch device 30 is a hydraulically operated wet multi-plate clutch. However, the present invention is not limited to this. In the present embodiment, the transmission disposed at the rear stage of the clutch device 30 is a dual clutch transmission having a first input shaft 41 and a second input shaft 42.
　クラッチ装置３０は、入力軸３１から変速機の第１入力軸４１への動力伝達を断接する第１クラッチと、第１クラッチよりも軸方向において他側に設けられ、入力軸３１から変速機の第２入力軸４２への動力伝達を断接する第２クラッチとを有する。なお、図１では、クラッチ装置３０の外径形状のみが示されており、クラッチ装置３０の内部構造については省略されている。 The clutch device 30 is provided on the other side in the axial direction with respect to the first clutch for connecting and disconnecting power transmission from the input shaft 31 to the first input shaft 41 of the transmission, and from the input shaft 31 to the transmission of the transmission. And a second clutch for connecting and disconnecting power transmission to the second input shaft. In FIG. 1, only the outer diameter shape of the clutch device 30 is shown, and the internal structure of the clutch device 30 is omitted.
　クラッチ装置３０の一側は、小径部３２となっており、この小径部３２には、油圧ピストンが配置されている。すなわち、小径部３２は、クラッチ装置３０におけるピストン配置部を構成する。 One side of the clutch device 30 has a small diameter portion 32, and a hydraulic piston is disposed in the small diameter portion 32. That is, the small diameter portion 32 constitutes a piston arrangement portion in the clutch device 30.
　また、クラッチ装置３０の他側は、大径部３３となっており、この大径部３３には、複数のクラッチ板が配置されている。すなわち、大径部３３は、クラッチ装置３０におけるクラッチ板配置部を構成する。 Further, the other side of the clutch device 30 is a large diameter portion 33, and a plurality of clutch plates are arranged in the large diameter portion 33. That is, the large diameter portion 33 constitutes a clutch plate arrangement portion in the clutch device 30.
　ハウジング１０の中間壁１３は、ボルト等の固定手段によって周壁部１１に取り付けられている。中間壁１３には、ロックアップクラッチ２４の動作、クラッチ装置３０の動作およびクラッチ装置３０への潤滑油の供給を制御する複数のバルブが配設されているとともに、作動油通路が形成されている。 The intermediate wall 13 of the housing 10 is attached to the peripheral wall portion 11 by a fixing means such as a bolt. The intermediate wall 13 is provided with a plurality of valves for controlling the operation of the lockup clutch 24, the operation of the clutch device 30 and the supply of lubricating oil to the clutch device 30, and a hydraulic oil passage is formed. .
　なお、図１では、オイルポンプ５０（後述する）から吐出された作動油８０（後述する）が流通する作動油通路５１と、クラッチ装置３０の動作を制御するクラッチ制御バルブ７０（後述する）へ至る作動油通路５２とが示されている。 In FIG. 1, a hydraulic oil passage 51 through which hydraulic oil 80 (described later) discharged from an oil pump 50 (described later) flows and a clutch control valve 70 (described later) that controls the operation of the clutch device 30 are illustrated. The hydraulic oil passage 52 is shown.
　中間壁１３は、一側に位置する第１壁部材と、他側に位置する第２壁部材と、第１壁部材および第２壁部材に挟持された仕切りプレートとを有している。第１壁部材の他側面に設けられた溝と、第２壁部材の一側面に設けられた溝と、仕切りプレートとにより、作動油通路が形成される。 The intermediate wall 13 has a first wall member located on one side, a second wall member located on the other side, and a partition plate sandwiched between the first wall member and the second wall member. A hydraulic oil passage is formed by the groove provided on the other side surface of the first wall member, the groove provided on one side surface of the second wall member, and the partition plate.
　また、中間壁１３内には、オイルポンプ駆動機構６０が設けられている。オイルポンプ駆動機構６０は、トルクコンバータ２０のポンプ２１から他側へ延びる中空軸２５上に設けられたスプロケット６１と、オイルポンプ５０のポンプ駆動軸５３上に設けられた第２スプロケット６２と、スプロケット６１と第２スプロケット６２との間に掛け渡されたチェーン６３とを有する。 Also, an oil pump drive mechanism 60 is provided in the intermediate wall 13. The oil pump drive mechanism 60 includes a sprocket 61 provided on the hollow shaft 25 extending from the pump 21 of the torque converter 20 to the other side, a second sprocket 62 provided on the pump drive shaft 53 of the oil pump 50, and a sprocket. 61 and a chain 63 spanned between the second sprocket 62.
　スプロケット６１、第２スプロケット６２およびチェーン６３は、中間壁１３内に形成された空間６４内に配置されている。 The sprocket 61, the second sprocket 62, and the chain 63 are arranged in a space 64 formed in the intermediate wall 13.
　スプロケット６１が回転することで、スプロケット６１の回転がチェーン６３を介して第２スプロケット６２に伝達され、第２スプロケット６２が回転する。これにより、オイルポンプ５０は、オイルポンプ５０内に一体に設けられたフィルタ（不図示）を介して作動油８０を吸い上げ、作動油通路５１に吐出する。なお、図１では、オイルポンプ５０の外径形状のみが示されており、オイルポンプ５０の内部構造については省略されている。 When the sprocket 61 rotates, the rotation of the sprocket 61 is transmitted to the second sprocket 62 via the chain 63, and the second sprocket 62 rotates. As a result, the oil pump 50 sucks up the hydraulic oil 80 through a filter (not shown) provided integrally in the oil pump 50 and discharges it to the hydraulic oil passage 51. In FIG. 1, only the outer diameter shape of the oil pump 50 is shown, and the internal structure of the oil pump 50 is omitted.
　図１に示すように、オイルポンプ５０は、中間壁１３から他側へ突出して設けられている。オイルポンプ５０は、クラッチ装置３０よりも径方向外側に、クラッチ装置３０と径方向に重なるように配置されている。より詳細に説明すると、オイルポンプ５０は、クラッチの大径部３３よりも径方向外側に、小径部３２および大径部３３と径方向に重なるように配置されている。 As shown in FIG. 1, the oil pump 50 is provided so as to protrude from the intermediate wall 13 to the other side. The oil pump 50 is disposed on the radially outer side of the clutch device 30 so as to overlap the clutch device 30 in the radial direction. More specifically, the oil pump 50 is disposed radially outside the large diameter portion 33 of the clutch so as to overlap the small diameter portion 32 and the large diameter portion 33 in the radial direction.
　また、オイルポンプ５０は、クラッチ装置３０の入力軸３１よりも鉛直方向下側に位置している。図１に示すように、オイルポンプ５０は、作動油８０に浸かっている。すなわち、オイルポンプ５０は、吸い込み油路そのものが作動油８０の液中に存在する。そのため、エアの噛み込みを好適に防止することができる。また、吸い込み油路を短縮することができるため、吸い込み抵抗を低減することができる。 Further, the oil pump 50 is located on the lower side in the vertical direction than the input shaft 31 of the clutch device 30. As shown in FIG. 1, the oil pump 50 is immersed in the hydraulic oil 80. That is, in the oil pump 50, the suction oil passage itself exists in the liquid of the hydraulic oil 80. Therefore, it is possible to suitably prevent air from being caught. Further, since the suction oil passage can be shortened, the suction resistance can be reduced.
　さらに、オイルポンプ５０の他側端よりも他側の、オイルポンプ５０と仕切り壁１２との間には、空間が設けられているため、必要に応じて、オイルポンプ５０の軸方向長さを増大させることができる。そのため、動力伝達装置１の軸方向長さを増大させることなく、オイルポンプ５０の容量を増やすことができる。 Further, since a space is provided between the oil pump 50 and the partition wall 12 on the other side of the other end of the oil pump 50, the axial length of the oil pump 50 can be increased as necessary. Can be increased. Therefore, the capacity of the oil pump 50 can be increased without increasing the axial length of the power transmission device 1.
　クラッチ制御バルブ７０は、中間壁１３から他側へ突出して設けられたバルブ収容部７１の内部に収容されたスプール７２を有する。図１に示すように、スプール７２の軸方向は、クラッチ装置３０の入力軸３１の軸方向と直交する向きである。 The clutch control valve 70 has a spool 72 accommodated in a valve accommodating portion 71 provided so as to protrude from the intermediate wall 13 to the other side. As shown in FIG. 1, the axial direction of the spool 72 is a direction orthogonal to the axial direction of the input shaft 31 of the clutch device 30.
　クラッチ制御バルブ７０には、オイルポンプ５０から送出された作動油８０が供給され、制御部（不図示）からの指示により、クラッチ装置３０への供給／遮断が切り替えられる。 The hydraulic oil 80 sent from the oil pump 50 is supplied to the clutch control valve 70, and supply / disconnection to the clutch device 30 is switched according to an instruction from a control unit (not shown).
　クラッチ制御バルブ７０は、クラッチ装置３０よりも径方向外側に、クラッチ装置３０と径方向に重なるように配置されている。より詳細に説明すると、クラッチ制御バルブ７０は、クラッチ装置３０の小径部３２よりも径方向外側に、小径部３２と径方向に重なるように配置されており、かつ、軸方向から見てクラッチ装置３０と重なるように配置されている。 The clutch control valve 70 is disposed on the radially outer side of the clutch device 30 so as to overlap the clutch device 30 in the radial direction. More specifically, the clutch control valve 70 is disposed on the radially outer side of the small diameter portion 32 of the clutch device 30 so as to overlap the small diameter portion 32 in the radial direction, and when viewed from the axial direction, the clutch device. 30 so as to overlap.
　換言すると、入力軸３１の軸心から、クラッチ制御バルブ７０における最も当該軸心に近い位置までの距離Ｌ１は、入力軸３１の軸心から、クラッチ装置３０の小径部３２の外周部までの距離Ｌ２よりも長い。また、距離Ｌ１は、入力軸３１の軸心から、クラッチ装置３０の大径部３３の外周部までの距離Ｌ３よりも短い。 In other words, the distance L1 from the axis of the input shaft 31 to the position closest to the axis of the clutch control valve 70 is the distance from the axis of the input shaft 31 to the outer peripheral portion of the small diameter portion 32 of the clutch device 30. Longer than L2. The distance L1 is shorter than the distance L3 from the axis of the input shaft 31 to the outer peripheral portion of the large-diameter portion 33 of the clutch device 30.
　これにより、クラッチ制御バルブ７０を、入力軸３１の軸心寄りに配置することができ、径方向の寸法拡大を抑制することができる。なお、クラッチ制御バルブ７０は、クラッチ装置３０の最外径よりも径方向外側に配置されてもよい。 Thereby, the clutch control valve 70 can be disposed closer to the axis of the input shaft 31, and the dimensional expansion in the radial direction can be suppressed. Note that the clutch control valve 70 may be disposed on the radially outer side than the outermost diameter of the clutch device 30.
　以上説明したように、本実施形態によれば、動力伝達装置１は、エンジンから変速機の入力軸への動力伝達を断接するクラッチ装置３０と、クラッチ装置３０の動作を制御するクラッチ制御バルブ７０と、クラッチ制御バルブ７０へ作動油を供給するオイルポンプ５０と、を備える。クラッチ制御バルブ７０およびオイルポンプ５０は、クラッチ装置３０よりも径方向外側に、クラッチ装置３０と径方向に重なるように配置されている。 As described above, according to the present embodiment, the power transmission device 1 includes the clutch device 30 that connects and disconnects the power transmission from the engine to the input shaft of the transmission, and the clutch control valve 70 that controls the operation of the clutch device 30. And an oil pump 50 that supplies hydraulic oil to the clutch control valve 70. The clutch control valve 70 and the oil pump 50 are arranged radially outside the clutch device 30 so as to overlap the clutch device 30 in the radial direction.
　そのため、オイルポンプをクラッチよりも一側に配置するのに比べ、動力伝達装置の軸方向長さを短縮することができる。 Therefore, the axial length of the power transmission device can be shortened as compared with the case where the oil pump is arranged on one side of the clutch.
　また、本実施形態によれば、オイルポンプ５０は、クラッチ装置３０の入力軸３１よりも鉛直方向下側に位置している。これにより、吸い込み油路を短くすることができる。そのため、オイルポンプ５０の吸い込み抵抗を低減することができる。さらに、吸い込み油路を作動油８０に浸かった状態とすることができるため、吸い込み時のエア噛み込みを好適に防止することができる。 Further, according to the present embodiment, the oil pump 50 is located on the lower side in the vertical direction than the input shaft 31 of the clutch device 30. Thereby, a suction oil path can be shortened. Therefore, the suction resistance of the oil pump 50 can be reduced. Further, since the suction oil passage can be immersed in the hydraulic oil 80, air entrainment during suction can be suitably prevented.
　また、本実施形態によれば、クラッチ装置３０は、第１入力軸４１および第２入力軸４２を有するデュアルクラッチ変速機と接続され、入力軸３１から第１入力軸４１への動力伝達を断接する第１クラッチと、第１クラッチよりも軸方向において他側に設けられ、入力軸３１から第２入力軸４２への動力伝達を断接する第２クラッチとを有する。 Further, according to the present embodiment, the clutch device 30 is connected to a dual clutch transmission having the first input shaft 41 and the second input shaft 42, and interrupts power transmission from the input shaft 31 to the first input shaft 41. The first clutch is in contact with the first clutch, and the second clutch is provided on the other side in the axial direction than the first clutch and connects and disconnects power transmission from the input shaft 31 to the second input shaft.
　このような複数クラッチを有する構成によって、動作および潤滑のために必要とされる作動油の油量が増大した場合であっても、本実施形態では、動力伝達装置の軸方向長さを増大させることなく、オイルポンプの容量を大きくして必要油量を確保することができる。 Even if the amount of hydraulic oil required for operation and lubrication is increased by such a configuration having a plurality of clutches, in this embodiment, the axial length of the power transmission device is increased. The required oil amount can be ensured by increasing the capacity of the oil pump.
　なお、上述の実施形態では、クラッチ装置として、デュアルクラッチ式変速機に対応して第１クラッチおよび第２クラッチを備えたクラッチ装置を例に説明を行ったが、これに限定されない。クラッチ装置は、単一のクラッチを備えたものでもよい。 In the above-described embodiment, the clutch device including the first clutch and the second clutch corresponding to the dual clutch transmission has been described as an example of the clutch device, but is not limited thereto. The clutch device may include a single clutch.
　本出願は、２０１８年２月１５日付で出願された日本国特許出願（特願２０１８－０２５０３６）に基づくものであり、その内容はここに参照として取り込まれる。 This application is based on a Japanese patent application (Japanese Patent Application No. 2018-025036) filed on February 15, 2018, the contents of which are incorporated herein by reference.
　本開示の動力伝達装置によれば、軸方向長さを短縮することができ、産業上の利用可能性は多大である。 According to the power transmission device of the present disclosure, the axial length can be shortened and the industrial applicability is great.
　１　動力伝達装置
　１０　ハウジング
　１１　周壁部
　１２　仕切り壁
　１３　中間壁
　１４　トルクコンバータ収容室
　１５　クラッチ収容室
　２０　トルクコンバータ
　２１　ポンプ
　２２　タービン
　２４　ロックアップクラッチ
　２５　中空軸
　３０　クラッチ装置
　３１　入力軸
　３２　小径部
　３３　大径部
　４１　第１入力軸
　４２　第２入力軸
　５０　オイルポンプ
　５１　作動油通路
　５２　作動油通路
　５３　ポンプ駆動軸
　６０　オイルポンプ駆動機構
　６１　スプロケット
　６２　第２スプロケット
　６３　チェーン
　６４　空間
　７０　クラッチ制御バルブ
　７１　バルブ収容部
　７２　スプール
 
  DESCRIPTION OF SYMBOLS 1 Power transmission device 10 Housing 11 Peripheral wall part 12 Partition wall 13 Intermediate wall 14 Torque converter accommodation chamber 15 Clutch accommodation chamber 20 Torque converter 21 Pump 22 Turbine 24 Lock-up clutch 25 Hollow shaft 30 Clutch device 31 Input shaft 32 Small diameter part 33 Large diameter Part 41 First input shaft 42 Second input shaft 50 Oil pump 51 Hydraulic oil passage 52 Hydraulic oil passage 53 Pump drive shaft 60 Oil pump drive mechanism 61 Sprocket 62 Second sprocket 63 Chain 64 Space 70 Clutch control valve 71 Valve housing 72 spool

Claims (6)

  1. 　駆動源から変速機の入力軸への動力伝達を断接するクラッチ装置と、
    　前記クラッチ装置の動作を制御する制御バルブと、
    　前記制御バルブへ作動油を供給するオイルポンプと、を備え、
    　前記制御バルブおよび前記オイルポンプは、前記クラッチ装置よりも径方向外側に、前記クラッチ装置と径方向に重なるように配置されている、
    　動力伝達装置。     A clutch device for connecting and disconnecting power transmission from the drive source to the input shaft of the transmission;
    A control valve for controlling the operation of the clutch device;
    An oil pump for supplying hydraulic oil to the control valve,
    The control valve and the oil pump are arranged radially outside the clutch device so as to overlap the clutch device in the radial direction.
    Power transmission device.
  2. 　前記制御バルブおよび前記オイルポンプは、前記クラッチ装置の最外径よりも径方向外側に配置されている、
    　請求項１に記載の動力伝達装置。     The control valve and the oil pump are disposed radially outside the outermost diameter of the clutch device.
    The power transmission device according to claim 1.
  3. 　内部に作動油通路が形成された中間壁を備え、前記制御バルブおよび前記オイルポンプは、前記中間壁に配設されている、
    　請求項１に記載の動力伝達装置。     An intermediate wall having a hydraulic oil passage formed therein, and the control valve and the oil pump are disposed in the intermediate wall;
    The power transmission device according to claim 1.
  4. 　前記中間壁の内部に、前記オイルポンプの駆動機構が設けられている、
    　請求項３に記載の動力伝達装置。     A drive mechanism of the oil pump is provided inside the intermediate wall.
    The power transmission device according to claim 3.
  5. 　前記オイルポンプは、前記入力軸よりも鉛直方向下側に配置されている、
    　請求項１に記載の動力伝達装置。     The oil pump is disposed vertically below the input shaft.
    The power transmission device according to claim 1.
  6. 　前記クラッチ装置は、第１入力軸および第２入力軸を有するデュアルクラッチ式変速機と接続され、
    　前記駆動源から前記第１入力軸への動力伝達の断接に用いられる第１クラッチと、
    　前記第１クラッチと軸方向に隣接して配置され、前記駆動源から前記第２入力軸への動力伝達の断接に用いられる第２クラッチと、を有する、
    　請求項１に記載の動力伝達装置。
          The clutch device is connected to a dual clutch transmission having a first input shaft and a second input shaft,
    A first clutch used for connecting / disconnecting power transmission from the drive source to the first input shaft;
    A second clutch disposed adjacent to the first clutch in the axial direction and used for connecting and disconnecting power transmission from the drive source to the second input shaft.
    The power transmission device according to claim 1.
PCT/JP2019/004923 2018-02-15 2019-02-13 Power-transmitting device WO2019159912A1 (en)

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JPH0590015U (en) * 1992-05-14 1993-12-07 株式会社大金製作所 Oil pump gear lubrication structure of torque converter
JP2001241529A (en) * 2000-02-28 2001-09-07 Isuzu Motors Ltd Power transmission device
JP2004353789A (en) * 2003-05-29 2004-12-16 Honda Motor Co Ltd Double clutch device

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