阅读说明：本技术 具有包括单独活塞的涡轮离合器的变矩器 (Torque-converters with the turbine clutch for including independent piston ) 是由 T·赫斯 于 2018-02-20 设计创作，主要内容包括：一种变矩器,包括：盖,其布置成用于接收扭矩；叶轮,其包括不可相对旋转地连接到盖的叶轮壳体和连接到叶轮壳体的至少一个叶轮叶片；涡轮,其包括涡轮壳体和连接到涡轮壳体的至少一个涡轮叶片；输出轮毂,其连接到涡轮壳体且布置成不可相对旋转地连接到用于变速器的输入轴；和涡轮离合器,其包括活塞,该活塞不可相对旋转地连接到涡轮壳体,并且对于锁止模式可轴向移位以使活塞和叶轮壳体不可相对旋转地连接。(A kind of torque-converters, comprising: lid is arranged for receiving torque；Impeller comprising the impeller housing of lid can not be connected to the relative rotation and be connected at least one impeller blade of impeller housing；Turbine comprising turbine shroud and at least one turbo blade for being connected to turbine shroud；Output hub is connected to turbine shroud and is arranged to that the input shaft for speed changer can not be connected to the relative rotation；And turbine clutch comprising piston, the piston can not be connected to turbine shroud with the relative rotation, and for lockdown mode axially displaceable so that piston and impeller housing can not connect with the relative rotation.)

1. a kind of torque-converters, comprising:

Lid is arranged for receiving torque；

Impeller comprising:

It can not be connected to the impeller housing of lid with the relative rotation；With

It is connected at least one impeller blade of impeller housing；

Turbine comprising

Turbine shroud；With

It is connected at least one turbo blade of turbine shroud；

Output hub is connected to turbine shroud, and is arranged to that the input shaft for speed changer can not be connected to the relative rotation； With

Turbine clutch comprising piston, the piston:

It can not be connected to turbine shroud with the relative rotation；And

It for lockdown mode, can be shifted along first axial direction, so that piston and impeller housing can not connect with the relative rotation.

2. torque-converters according to claim 1, wherein the torque-converters further include:

The chamber at least partly formed by piston and turbine shroud；

Leaf spring is positioned in the chamber, and can not be connected to turbine shroud and piston with the relative rotation.

3. torque-converters according to claim 1, wherein the torque-converters further include:

The first chamber at least partly formed by piston and turbine shroud；

The second chamber at least partly formed by impeller housing and turbine shroud；With

The through-hole of the first and second chamber of connection in turbine shroud, wherein at least one described impeller blade and it is described at least One turbo blade is located in second chamber.

4. torque-converters according to claim 1, wherein the torque-converters further include:

Turbine hub is arranged for engagement transmission input shaft, in which:

Turbine shroud can not be connected to turbine hub with the relative rotation；

Turbine hub is connected to output hub；And

Piston is contacted with turbine hub；Or

Torque-converters further includes the bushing for sealing against piston and turbine hub.

5. torque-converters according to claim 1, wherein the torque-converters further include:

The partly first chamber by covering and piston limits；With

The second chamber partly limited by piston and turbine shroud, in which:

For lockdown mode, the Fluid pressure in first chamber is set greater than the power that piston is pushed along the second axial direction, the Two axial directions are opposite with first axial direction；And

For torque converter mode:

Piston can be rotated relative to impeller housing；And

The power is set greater than the Fluid pressure in first chamber；

The third chamber partly formed by impeller housing and turbine shroud, in which:

At least one described turbo blade is located in third chamber；And

Piston includes the opening for being connected to second and third chamber.

6. torque-converters according to claim 1, wherein the torque-converters further include:

Turbine hub is arranged for engagement transmission input shaft；

The partly first chamber by covering and piston limits；

The second chamber partly limited by piston and turbine shroud；With

The third chamber partly limited by turbine shroud and impeller housing, in which:

At least one described turbo blade is located in third chamber；

Turbine shroud can not be connected to turbine hub with the relative rotation；

Turbine hub is connected to output hub；And

Turbine hub limits the corresponding portion of the first, second, and third chamber.

7. torque-converters according to claim 1, wherein the torque-converters further include:

Sealing element seals against the radially part of piston and turbine shroud；

Seal against the first plate of piston；

First chamber is partly formed by turbine shroud and impeller housing, and accommodates at least one described turbo blade；

The second chamber partly formed by the piston, the sealing element and turbine shroud；With

Third chamber is partly formed by the first plate and piston, and is sealed relative to first chamber and second chamber, in which:

Turbine shroud includes at least one through-hole；And

Other than at least one described through-hole, second chamber is also wrapped relative to first and third cavity seal, the torque-converters It includes:

Partly by covering and the 4th chamber that is formed of the first plate, wherein third chamber relative to first, second and the 4th chamber it is close Envelope.

8. torque-converters according to claim 7, in which:

Turbine shroud includes at least one through-hole；And

Other than at least one described through-hole, second chamber is relative to first and third cavity seal.

9. a kind of torque-converters, comprising:

Lid is arranged for receiving torque；

Impeller comprising:

It can not be connected to the impeller housing of lid with the relative rotation；With

It is connected at least one impeller blade of impeller housing；

Turbine comprising:

Turbine shroud；With

It is connected at least one turbo blade of turbine shroud；

Output hub is connected to turbine shroud, and is arranged to that the input shaft for speed changer can not be connected to the relative rotation；

Turbine clutch comprising piston, the piston:

It can not be connected to turbine shroud with the relative rotation；And

It for lockdown mode, is axially displaceable, so that piston and impeller housing can not connect with the relative rotation；

The first chamber partly limited by piston and turbine shroud；

The second chamber partly limited by turbine shroud and impeller housing；With

Sealing element seals against piston and turbine shroud, and partly limits the first and second chambers, wherein it is described extremely A few turbo blade is located in second chamber.

10. a kind of torque-converters, comprising:

Lid is arranged for receiving torque；

Impeller comprising:

It can not be connected to the impeller housing of lid with the relative rotation；With

It is connected at least one impeller blade of impeller housing；

Turbine comprising:

Turbine shroud；With

It is connected at least one turbo blade of turbine shroud；

Output hub is connected to turbine shroud, and is arranged to that the input shaft for speed changer can not be connected to the relative rotation；

Turbine clutch comprising the piston of turbine shroud can not be connected to the relative rotation；

Seal against the first plate of piston；

The first chamber partly formed by turbine shroud and impeller housing；

The second chamber partly formed by piston and turbine shroud；

The partly third chamber by covering and the first plate is formed；With

4th chamber:

Partly formed by the first plate and piston；And

Relative to the first, second, and third cavity seal.

Technical field

This disclosure relates to a kind of torque-converters with turbine clutch, which has separates with turbine shroud The piston of axially displaceable is used to open and is closed turbine clutch.Present disclosure also relates to a kind of three with turbine clutch Logical or four-way torque-converters, the turbine clutch have the piston of the axially displaceable separated with turbine shroud and offset chamber, To reduce the dynamic effect as caused by the operation of piston.

Background technique

Known hydraulic torque converter with turbine clutch is operated by keeping turbine shroud axially displaced, to open and close whirlpool It takes turns clutch and is converted between torque converter mode (clutch opening) and lockdown mode (clutch closure).Shift turbine Stress can be applied to turbo blade and may be decreased the durability of turbine.The known torque-converters with turbine clutch only limits It is designed in threeway (three fluid circuits).

Summary of the invention

According to aspects illustrated herein, a kind of torque-converters is provided, comprising: lid is arranged for receiving torque；Leaf Wheel comprising the impeller housing of lid can not be connected to the relative rotation and be connected at least one impeller blade of impeller housing； Turbine comprising turbine shroud and at least one turbo blade for being connected to turbine shroud；Output hub is connected to turbine case It body and is arranged to that the input shaft for speed changer can not be connected to the relative rotation；And turbine clutch comprising piston, it should Piston can not be connected to turbine shroud with the relative rotation, and for lockdown mode axially displaceable so that piston and impeller housing It can not connect with the relative rotation.

According to aspects illustrated herein, a kind of torque-converters is provided, comprising: lid is arranged for receiving torque；Leaf Wheel comprising the impeller housing of lid can not be connected to the relative rotation and be connected at least one impeller blade of impeller housing； Turbine comprising turbine shroud and at least one turbo blade for being connected to turbine shroud；Output hub is connected to turbine case It body and is arranged to that the input shaft for speed changer can not be connected to the relative rotation；Turbine clutch comprising piston, the work Plug can not be connected to turbine shroud with the relative rotation and for lockdown mode axially displaceable so that piston and impeller housing not It can connect with the relative rotation；The first chamber partly limited by piston and turbine shroud；Partly by turbine shroud and impeller The second chamber that shell limits；Sealing element seals against piston and turbine shroud and partly limits the first and second chambers Room.At least one described turbo blade is located in second chamber.

According to aspects illustrated herein, a kind of torque-converters is provided, comprising: lid is arranged for receiving torque；Leaf Wheel comprising the impeller housing of lid can not be connected to the relative rotation and be connected at least one impeller blade of impeller housing； Turbine comprising turbine shroud and at least one turbo blade for being connected to turbine shroud；Output hub is connected to turbine case It body and is arranged to that the input shaft for speed changer can not be connected to the relative rotation；Turbine clutch comprising piston, the work Plug can not be connected to turbine shroud with the relative rotation and for lockdown mode axially displaceable so that piston and impeller housing not It can connect with the relative rotation；Seal against the first plate of piston；First partly formed by turbine shroud and impeller housing Chamber；The second chamber partly formed by piston and turbine shroud；The partly third chamber by covering and the first plate is formed；The Four chambers are partly formed by the first plate and piston, and relative to the first, second, and third cavity seal.

Detailed description of the invention

Only by way of example, various embodiments are disclosed with reference to accompanying schematic figure, wherein corresponding appended drawing reference table Show corresponding component, in which:

Fig. 1 is the partial sectional view with the torque-converters of turbine clutch, which has and turbine shroud point From piston；

Fig. 2 is the partial sectional view of the torque-converters in Fig. 1, wherein having bushing between piston and turbine hub；

Fig. 3 is the partial sectional view of the torque-converters in Fig. 1, wherein has sealing element between piston and turbine shroud；

Fig. 4 is the partial sectional view with the four-way torque-converters of turbine clutch, which has and turbine case The piston that body separates and the individual application chamber for piston；With

Fig. 5 is the perspective view of cylindrical coordinate system, shows spatial terminology used herein.

Specific embodiment

First, it should be understood that the same reference numerals on different attached drawing views indicate the identical or function phase of the disclosure As structural detail.It should be appreciated that claimed, the present disclosure is not limited to disclosed aspects.

In addition, it should be understood that the present disclosure is not limited to described ad hoc approach, material and modifications, therefore can of course change Become.It is also understood that terms used herein are only used for the purpose of description particular aspects, it is no intended to limit the model of the disclosure It encloses.

Unless otherwise defined, otherwise all technical and scientific terms used herein have it is general with disclosure fields The logical identical meaning of the normally understood meaning of technical staff.It should be appreciated that similar or equivalent any with those of being described herein Method, apparatus or material can be used for the practice or test of the disclosure.

Fig. 5 is the perspective view of cylindrical coordinate system 10, shows spatial terminology used herein.The application at least portion Ground is divided to describe under the background of cylindrical coordinate system.System 10 includes rotary shaft or longitudinal axis 11, as subsequent direction and sky Between term reference.Opposite axial direction A D1 and AD2 is parallel to axis 11.Radial direction RD1 is perpendicular to axis 11 and separate Axis 11.Radial direction RD2 is perpendicular to axis 11 and towards axis 11.Opposite circumferencial direction CD1 and CD2 is by certain radius R The endpoint of (perpendicular to axis 11) rotates around axis 11, is for example correspondingly rotated both clockwise and counterclockwise restriction.

In order to illustrate spatial terminology, object 12,13 and 14 has been used.As an example, axial surface, such as the table of object 12 Face 15A is formed by the plane coplanar with axis 11.However, any plane surface for being parallel to axis 11 is all axial surface.Example Such as, the surface 15B for being parallel to axis 11 is also axial surface.Axial edge is by being parallel to edge (such as the edge of axis 11 15C) formed.Radial surface, such as the surface 16A of object 13, by orthogonal with axis 11 and be total to radius, such as radius 17A The plane in face is formed.Radial edges are conllinear with the radius of axis 11.For example, edge 16B is conllinear with radius 17B.The table of object 14 Face 18 forms circumference or cylindrical surface.For example, passing through surface 18 by the circumference 19 that radius 20 limits.

It is axially moved on AD1 or AD2 in the axial direction.Radial motion is on radial direction RD1 or RD2.Circumferential or rotation Movement is on circumferencial direction CD1 or CD2.Adverbial word " axially ", " radially " and " circumferentially " refers to and be correspondingly parallel to axis 11, perpendicular to axis 11 and around the movement or orientation of axis 11.For example, the surface or edge that are axially arranged are on the AD1 of direction Extend, the surface or edge being arranged radially extend on the RD1 of direction, and the surface being circumferentially arranged or edge are on the CD1 of direction Extend.

Fig. 1 is the partial sectional view with the torque-converters 100 of turbine clutch, and wherein turbine clutch has and turbine case The piston of body separation.Torque-converters 100 includes: rotation axis AR；Lid 102 is arranged for receiving torque；Impeller 104；Turbine 106；Output hub 108；And turbine clutch 110.Impeller 104 includes: the impeller that can not be connected to lid 102 with the relative rotation Shell 112；And it is connected at least one impeller blade 114 of impeller housing 112.Turbine 106 includes: turbine shroud 116；With And it is connected at least one turbo blade 118 of turbine shroud 116.Output hub 108 is connected to turbine shroud 116 and arranges At the input shaft IS that can not be connected to the relative rotation for speed changer (not shown).One component " being engaged with another component " Refer to that a component is directly contacted with another component or these components are connect by mechanical solid middleware or accessory Touching.For example, washer or coating are settable between the two parts.

Turbine clutch 110 includes piston 120.Piston 120 can not be connected to turbine shroud 116 with the relative rotation, and For lockdown mode, 120 axially displaceable of piston is so that piston 120 and impeller housing 112 can not connect with the relative rotation.Example Such as, piston 120 can be shifted on AD1 in the axial direction, can not connect piston 120 and impeller housing 112 with the relative rotation.One In a exemplary embodiment, clutch 110 includes the friction material 122 between piston 120 and shell 112.

Torque-converters 100 includes: the chamber 124 at least partly being formed or being limited by piston 120 and turbine shroud 112；Extremely The chamber or circulation circle 126 for partially being formed or being limited by shell 112 and 116；At least partly by lid 102 and piston 120 The chamber 128 for being formed or being limited.Blade 114 and 118 is located in chamber 126.Leaf spring 130: it is located in chamber 124；It can not be opposite It is rotationally connected to turbine shroud 116 and piston 120；Piston 120 can be made axially displaced relative to turbine shroud 116, and will Torque is transmitted to shell 116 from piston 120.In one exemplary embodiment, shell 116 includes at least one through-hole 132, should The material that at least one through-hole 132 is formed shell 116 completely surrounds and connecting chamber 124 and 126.In the example of fig. 1, 130 applied force F of spring is to push piston 120 along direction AD2.

For lockdown mode, the Fluid pressure in chamber 128 is set greater than power F (when it is present) and chamber 124 and 126 In Fluid pressure combination, thus along direction AD1 push piston 120.Piston 120 can be rotated relative to shell 112 Torque converter mode, the Fluid pressure in chamber 124 are set greater than or equal to the Fluid pressure in chamber 128.In lockdown mode In torque converter mode, the corresponding fluids pressure in chamber 124 and 126 is of substantially equal.

In one exemplary embodiment, torque-converters 100 includes turbine hub 134, and turbine hub 134 is arranged to hermetically Against transmission input shaft IS, for example, bushing 136 seals against wheel hub 134 and axis IS.Turbine shroud 116 can not opposite rotation It is connected to turbine hub 134 with turning, turbine hub 134 is connected to output hub 108, and piston 120 connects with turbine hub 134 Touching.In one exemplary embodiment, torque-converters 100 includes plate 138, which contacts with wheel hub 108 and can not relative rotation Ground is connected to wheel hub 134.In one exemplary embodiment, the corresponding portion of 134 limit chamber 124,126 and 128 of turbine hub Point.

In one exemplary embodiment, torque-converters 100 includes torsional vibration damper 140 and centrifugal pendulum 14.Damper 140 include: the driving plate 144 that can not be connected to piston 120 with the relative rotation；Cover board 146；The spring engaged with plate 144 and 146 148；The spring 150 engaged with plate 146；With output flange 152, engages and can not connect with the relative rotation with spring 150 To wheel hub 108.Pendulum 142 includes: flange 154, can not be connected to plate 146 with the relative rotation and engage with spring 150；With can phase The centering block 156 shifted for flange 154.

In the example of fig. 1, for torque converter mode, pressurized fluid PF1 is logical via being formed by axis IS and guide wheel shaft SS Road CH3 is supplied to chamber 124 and 126, and cycles through guide wheel 159 by blade 114 and 116.Pressurized fluid PF2 is via axis Channel C H2 in IS is supplied to chamber 128 with the Fluid pressure less than fluid PF1.Pressure difference between PF1 and PF2 adds power F, Shift piston 120 along direction AD2, to open clutch 110.Shell 112, shell are transmitted to by the received torque of lid 102 112 rotate blade 114.Blade 114 makes fluid PF1 circulation with rotating vane 118 and shell 116.Shell 116 will be received by lid Torque be transmitted to wheel hub 108.Pendulum 142 absorbs the vibration for being transmitted to wheel hub 108.

In the example of fig. 1, for lockdown mode, the Fluid pressure of PF2 increases, and the Fluid pressure of chamber 124 and 126 Reduce or remains unchanged.Above-mentioned fluid pressure differential overcomes power F so that piston 120 is shifted along direction AD1 to be closed clutch 110.Driving plate 144 is transmitted to via shell 112 and piston 120 by covering received torque.Torque on plate 144 passes through damper 140 are transmitted to flange 152 and wheel hub 108.Pendulum 142 absorbs the vibration for being transmitted to flange 152.Note that reducing chamber 124,126 and Fluid pressure in 128 may include by chamber vent to atmospheric environment.

Shell 120 is connected to wheel hub 108 via damper 140.Therefore, the Finite rotation between shell 120 and wheel hub 108 Due to spring 148 and 150 effect and occur.Wheel hub 134 is connected to wheel hub 108 via damper 140.Therefore, 134 He of wheel hub Finite rotation between wheel hub 108 due to spring 148 and 150 effect and occur.

Fig. 2 is the partial sectional view of the torque-converters 100 in Fig. 1, wherein having between piston 120 and turbine hub 134 Bushing.Unless otherwise stated, torque-converters 100 of the discussion about the torque-converters 100 in Fig. 1 suitable for Fig. 2.In Fig. 2 In, bushing 157 is added in configuration shown in FIG. 1, especially between piston 120 and turbine hub 134.Bushing 157 It is sealed against piston 120 and wheel hub 134 and seals chamber 124 relative to chamber 128.

Fig. 3 is the partial sectional view of the torque-converters 100 in Fig. 1, wherein has sealing element between piston and turbine shroud.It removes It is non-to be otherwise noted, the torque-converters 100 suitable for Fig. 3 otherwise is discussed about the torque-converters 100 in Fig. 2.In Fig. 3, sealing Part 160 is added in configuration shown in Fig. 2.Sealing element 160 seals against the radial direction of piston 120 and turbine shroud 116 Outermost portion 162.

Fig. 4 is the partial sectional view of four-way torque-converters 200, and wherein turbine clutch has the piston separated with turbine shroud With the individual application chamber for piston.Unless otherwise stated, the discussion about the torque-converters 100 in Fig. 3 is suitable for Torque-converters 200 in Fig. 4.In Fig. 4: being added to plate 202；Plate 204 replaces the plate 138 in Fig. 3；It is added to bushing 206；Apply Chamber 208 is at least partly formed or is limited by plate 202 and piston 120.Plate 204 includes at least through-hole 210.In addition to through-hole 210, Chamber 204 is sealed relative to chamber 124,126 and 128.

In the example of fig. 4, for torque converter mode, pressurized fluid PF1 is supplied to 124 He of chamber via channel C H3 126, and guide wheel 159 is cycled through by blade 114 and 116.Via the channel C H4 in axis IS, the through-hole TB in axis IS and Through-hole 210, pressurized fluid PF3 are supplied to chamber 208 with the Fluid pressure less than fluid PF1.Pressure difference between PF1 and PF3 In addition power F, shifts piston 120 along direction AD2, to open clutch 110.Shell is transmitted to by the received torque of lid 102 112, shell 112 rotates blade 114.Blade 114 makes fluid PF1 circulation with rotating vane 118 and shell 116.Shell 116 will Wheel hub 108 is transmitted to by covering received torque.Pendulum 142 absorbs the vibration for being transmitted to wheel hub 108.

In the example of fig. 4, for lockdown mode, the Fluid pressure of PF3 increases, and the Fluid pressure of chamber 124 and 126 Reduce or remains unchanged.Fluid pressure differential above-mentioned overcomes power F so that piston 120 is shifted along direction AD1 to be closed clutch 110.Driving plate 144 is transmitted to via shell 112 and piston 120 by covering received torque.Torque on plate 144 passes through damper 140 are transmitted to flange 152 and wheel hub 108.Pendulum 142 absorbs the vibration for being transmitted to flange 152.Note that reduce chamber 124,126, Fluid pressure in 128 and 208 may include by chamber vent to atmospheric environment.

Advantageously, torque-converters 100 and 200 solve it is above-mentioned about turbine shroud is shifted to open and close turbine clutch The problem of stress on device and resulting turbo blade.Specifically, piston 120 is shifted on direction AD1 and AD2 to divide Not Bi He and open clutch 110, and the axial position of turbine shroud 116 and turbo blade 118 it is relatively fixed (shell 116 It is some it is axially displaced can due to fluid PF1 circulation circle 126 in circulation and occur).Eliminate shell 116 opening and closing from Displacement when clutch 110 eliminates above-mentioned stress.

Piston 120 shifted on the AD1 of direction be closed clutch 110 cause fluid in chamber 124 and 126 displacement and Compression.Displacement and compression lead to dynamic effect, may interfere with the desired operation of clutch 110, so that reduce clutch can Control property.Advantageously, because sealing element 160, the chamber 124 in Fig. 3, which is used as, offsets chamber to help to counteract that and above-mentioned dynamic force and change The controllability of kind clutch 110.Advantageously for torque-converters 200, since the corresponding volume of chamber 208 and 124 is relatively close to (for example, the corresponding volume of the chamber 128 and 124 in torque-converters 100 than Fig. 3 is closer), it is related to the closure of clutch 110 The case where torque-converters 100, further reduces in dynamic effect ratio Fig. 3 of connection.

It should be appreciated that various feature and function or its alternative solution disclosed above can desirably be combined to it is many other In different systems or application.Those skilled in the art can then carry out various fail to predict or unexpected replacing at present Generation, modification, variation improve, these will also be covered by following following claims.

Reference signs list

10 cylindrical systems

11 rotation axis

AD1 axial direction

AD2 axial direction

RD1 radial direction

RD2 radial direction

CD1 circumferencial direction

CD2 circumferencial direction

R radius

12 objects

13 objects

14 objects

The surface 15A

The surface 15B

The edge 15C

The surface 16A

The edge 16B

17A radius

17B radius

18 surfaces

19 circumference

20 radiuses

100 torque-converters

AR rotation axis

The channel CH1

The channel CH2

The channel CH3

The channel CH4

IS transmission input shaft

PF1 pressurized fluid

PF2 pressurized fluid

PF3 pressurized fluid

SS guide wheel shaft

TB through-hole

102 lids

104 impellers

106 turbines

108 output hubs

110 turbine clutchs

112 impeller housings

114 impeller blades

116 turbine shrouds

118 turbo blades

120 pistons

122 friction materials

124 chambers

126 chambers or circulation circle

128 chambers

130 leaf springs

132 through-holes

134 turbine hubs

136 bushings

138 plates

140 torsional vibration dampers

142 centrifugal pendulums

144 driving plates

146 cover boards

148 springs

150 springs

152 output flanges

154 flanges

156 centering blocks

157 bushings

158 wheel hubs

159 guide wheels

160 sealing elements

The outermost portion of 162 shells 116

200 torque-converters

202 plates

204 plates

206 bushings

208 chambers

210 through-holes