CN107084235A - Oil path structure - Google Patents

Abstract

A kind of oil path structure, can improve the setting free degree in oil pressure path.The oil path structure is characterised by, with stator axis (66), there is bushing (B1) in the periphery of stator axis (66), oil circuit (S1) and oil circuit (S2), there is sleeve (67) in the inner circumferential of stator axis (66), there is oil circuit (S3) between sleeve (67) and stator axis (66), there is the oil circuit (S4) separated with oil circuit (S3) in the inner circumferential of sleeve (67), oil circuit (S1) is connected via oil circuit (S3) with oil circuit (S2), when from the radial direction of stator axis (66), oil circuit (S3) is overlapped with bushing (B1).

Description

Oil path structure

Technical field

The present invention relates to a kind of oil path structure.

Background technology

For example, the fluid torque-converter of locking clutch has in the torque converter casing being made up of impeller of pump and torque-converters cover Structure is provided between the Fluid-transmission portion formed by impeller of pump, turbine and stator, the turbine and torque-converters cover in torque converter casing Into the piston of lock-up clutch.

Lock-up clutch is crimped on bending moment by controlling the pressure difference that the supply pressure in torque converter casing is pressed with release making piston The lockup state of device cover and not being crimped between the released state of torque-converters cover is switched over, the oil pressure being connected with fluid torque-converter Path is usually two systems (such as patent document 1).

On the other hand, as the other manner of lock-up clutch, there is mode (such as patent document using multi-plate clutch 2), in which, due to the oil circuit of the additional hydraulic chamber to for coupling multi-plate clutch, so being connected with fluid torque-converter Oil pressure path be three systems.

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2015-110975 publications

Patent document 2：Japanese Unexamined Patent Publication 2007-16833 publications

The oil pressure path being connected with fluid torque-converter is using the inside of input shaft or the periphery of input shaft with inserting in input outside Gap of the inner circumferential of the cartridge of axle etc. is set.

Here, twelve Earthly Branches can be rotated against due to existing to be configured with the periphery of input shaft and the gap of the inner circumferential of cartridge The region of the bearing of input shaft and cartridge is held, so, it is necessary to avoid the position of bearing in the case of gap setting oil circuit Put to set oil circuit.

Restriction when setting this oil circuit is not limited only to the situation of fluid torque-converter, in the automatic transmission of oil pressure actuated Each position it is common exist.

Invent problem to be solved

But, such as patent document 2, if the increasing number of oil circuit, is difficult to avoid the position of bearing to set oil circuit, should In the case of, bearing is located in oil circuit as a result, the oily flowing in oil circuit is setting the region of bearing to be obstructed.

Here, in order that the flowing of oil is not hindered by bearing, it is considered to change the position of bearing, but if the position of change bearing Put, then the rotary part of internal side diameter and the bearing position of rotary part positioned at outside diameter positioned at bearing can change, because This, it is possible to create the problems such as the axis deviation of these rotary parts.

But, the position of oil circuit is changed to not change the position of bearing, it is necessary to significantly around change input shaft Design.

The content of the invention

Then, seek not needing the position change or the significantly design alteration of oil path structure of bearing and oil can be improved Press the technology of the setting free degree in path.

The present invention oil path structure be characterised by, with first axle, have in the periphery of the first axle clutch shaft bearing, First oil circuit and the second oil circuit, have the first sleeve, in first sleeve and the first axle in the inner circumferential of the first axle Between have the 3rd oil circuit, first oil circuit is connected via the 3rd oil circuit with second oil circuit, from the first axle Radial direction observation when, the 3rd oil circuit is overlapped with the clutch shaft bearing.

According to the present invention, by the first sleeve, in the region (space) of first axle inner circumferential, with being connected to the of first axle The position that one bearing is overlapped, is configured to the roundabout oil circuit (the 3rd oil circuit) of the roundabout clutch shaft bearing abutted with first axle.Therefore, At additional oil pressure path, the position of the clutch shaft bearing abutted with first axle can not be changed and formed and roundabout abutted with first axle Clutch shaft bearing oil pressure path.

It therefore, there is no need to carry out the position change or the significantly design alteration of oil path structure of clutch shaft bearing, with regard to that can carry The setting free degree in high oil pressure path.

Brief description of the drawings

Fig. 1 is the figure of the oil path structure for the fluid torque-converter for illustrating embodiment；

Fig. 2 is the enlarged view of the main part of the oil path structure in fluid torque-converter；

Fig. 3 is the enlarged view of the main part of the oil path structure in fluid torque-converter；

Fig. 4 is the enlarged view of the main part of the oil path structure of the fluid torque-converter of variation.

Symbol description

1 fluid torque-converter

15 Fluid-transmission portions

16 lockable mechanism portions

2 torque converter casings

25 torque-converters covers

28 transmission cases

29 supports

3 impellers of pump

31 pump cases

32 pump blades

33 impeller of pump sleeves

331 cylindrical portions

332 plectane portions

4 torque-converters covers

41 round plates

5 turbines

51 turbine cases

52 turbo blades

53 turbine hubs

531 cylindrical portions

532 plectane portions

6 stators

62 stator vanes

63 outer rings

64 clutch main bodies

65 inner rings

66 stator axis

661 thinner wall sections

67 sleeves

67a front ends

67c, 67d through hole

68th, 69,69a, 69b oil circuit

7 sleeves

71 wide diameter portions

8 follower plates

9 clutch hubs

91 plectane portions

92 barrel portions

93 outside diameter friction plates

94 internal side diameter friction plates

95 supporting hubs

96 pistons

960 base portions

961 internal perisporiums

962 periphery walls

963 press sections

100 supporting members

101 groove portions

102 axle portions

104 support holes

105 wall portions

120 input shafts

120a front ends

121 oil circuits

121a wide diameter portions

122 thinner wall sections

123rd, 124 oilhole

B1, B2, B3 bushing

OWC one-way clutch

R grease chambers

R1 rivets

S oil sealings

S1~S8 oil circuits

S1a~S1c, S3a~S3b oil circuits

X rotary shafts

Embodiment

Hereinafter, this is illustrated in case of the oil path structure of the present invention to be applied to the oil path structure of fluid torque-converter 1 The embodiment of invention.Fig. 1 is the figure for illustrating the oil path structure in fluid torque-converter 1.Fig. 2 is the locking machine of fluid torque-converter 1 The enlarged drawing on the periphery of structure portion 16.Fig. 3 is the enlarged drawing on the rotary shaft X peripheries of fluid torque-converter 1.

As shown in figure 1, fluid torque-converter 1 possesses fluid in the torque converter casing 2 being made up of impeller of pump 3 and torque-converters cover 4 Driving section 15 and lockable mechanism portion 16.

In Fluid-transmission portion 15, impeller of pump 3 and turbine 5 are provided on common rotary shaft X and can rotated against, stator 6 are located between these impellers of pump 3 and turbine 5.

In torque converter casing 2, Fluid-transmission portion has been provided spaced apart between the round plate 41 of torque-converters cover 4 at it 15, lockable mechanism portion 16 is located between the Fluid-transmission portion 15 and the round plate 41 of torque-converters cover 4.

Torque-converters cover 4 links via the bent axle of driving plate (not shown) and engine, when the rotary driving force of engine is passed through When inputting impeller of pump 3 by torque-converters cover 4, the rotary driving force being transfused to is delivered to turbine 5 via the oil in torque converter casing 2.

Impeller of pump 3 possesses pump case 31, the multiple pump blades 32 for being installed on pump case 31, the pump with the internal side diameter link of pump case 31 Impeller sleeve 33 and constitute.

The opposite face of pump case 31 and turbine 5 is provided with multiple pump blades 32, pump blade 32 is in the circumference around rotary shaft X On, radially configured from end on observation.

Impeller of pump sleeve 33 possesses the tubular along rotary shaft X axial direction (being also labeled as rotary shaft X-direction below) extension Portion 331 and the plectane portion 332 extended from the end of the side of turbine 5 of cylindrical portion 331 (on the right side of in figure) to radial outside, section is seen Examine with generally L-shaped shape.

The coupling part of the outer circumferential side in plectane portion 332 and the inner circumferential side of pump case 31 is throughout all-round soldered W.

The insertion of cylindrical portion 331 is set located at the oil sealing S of the opening 26 of torque-converters cover 25, positioned at the outer of torque-converters cover 25 The leading section 331a in portion is provided with sprocket wheel 27.

In embodiment, when the rotary driving force of engine is inputted into impeller of pump 3, the cylindrical portion 331 of impeller of pump sleeve 33 When being rotated around rotary shaft X, the rotation of cylindrical portion 331 via the periphery for being wound in sprocket wheel 27 chain transmission oil-feed pump (not shown) (not shown), so as to drive oil pump.

The rotation of impeller of pump 3 also passes to turbine 5 via the oil in torque converter casing 2, and the turbine 5 possesses turbine case 51, peace Multiple turbo blades 52 loaded on turbine case 51, the turbine hub linked using turbine case 51 and as the input shaft 120 of rotary shaft 53 and constitute.

The opposite face of turbine case 51 and impeller of pump 3 is provided with multiple turbo blades 52, turbo blade 52 is around rotation In axle X circumference, radially configured from end on observation.

As shown in Fig. 2 turbine hub 53 possesses along the rotary shaft X cylindrical portions 531 extended and the circle from cylindrical portion 531 The plectane portion 532 that the end of the side of pan portion 41 (right side in figure) extends to radial outside.

In the inner circumferential of cylindrical portion 531, throughout the all-round spline for being provided with and extending along rotary shaft X-direction, turbine case 51 exists The periphery spline of the input shaft 120 extended from gear portion (not shown) to the side of fluid torque-converter 1 is provided with tubular chimericly Portion 531.

In embodiment, when the rotary driving force of engine is transmitted from impeller of pump 3 to turbine 5, turbine 5 enters around rotary shaft X During row rotation, turbine 5 is rotated integrally with input shaft 120, and the rotary driving force of engine is input into the change in the left side in figure Fast mechanism part (not shown).

Peripheral part 532a in plectane portion 532, be fixed with by rivet R1 the inner circumferential side of turbine case 51 linking part 51a, With the linking part 81 of the inner circumferential side of the follower plate (not shown) of vibration absorber.

Constituting the clutch hub 9 of lockable mechanism portion 16 has barrel portion 92, the inner circumferential in the barrel portion 92, along around rotary shaft X circumference is provided with the spline 92a along rotary shaft X-direction at predetermined intervals.

In clutch hub 9, the external diameter for being provided spaced apart making periphery spline be embedded in barrel portion 92 along rotary shaft X-direction Side friction plate 93, outside diameter friction plate 93, which is provided in, to be limit in the state of the circumferential rotation around rotary shaft X, along rotation Rotating shaft X-direction may move.

Internal side diameter friction plate 94 is located between the outside diameter friction plate 93,93 that rotary shaft X-direction is abutted, these internal side diameters Friction plate 94 and outside diameter friction plate 93 are interacted in rotary shaft X-direction to be present.

The periphery spline of the supporting hub 95 of the tubular of round plate 41 of the internal side diameter friction plate 94 with being fixed on torque-converters cover 4 is embedding Close, internal side diameter friction plate 94 is provided in be limited to the circumference around rotary shaft X by the spline 95a of the periphery of supporting hub 95 Rotation in the state of it is removable along rotary shaft X-direction.

The press section 963 of piston 96 is from rotary shaft X-direction and these internal side diameter friction plates 94 and outside diameter friction plate 93 , positioned at most leaning on the outside diameter friction plate 93 of the side of Fluid-transmission portion 15 (in figure left side) to abut.

Piston 96 has surrounding wall portion (inner circumferential in the inner periphery and the outer periphery for the base portion 960 that ring-type is formed from rotary shaft X-direction Wall 961, periphery wall 962), these surrounding wall portions (internal perisporium 961, periphery wall 962) are set to the side of round plate 41 extension of torque-converters cover 4 Put.

The end of press section 963 from the side of round plate 41 of periphery wall 962 extends to radial outside, the press section 963 throughout Periphery wall 962 all-round of ring-type is formed from rotary shaft X-direction and is set.

Piston 96 is provided in the groove portion for making the base portion 960 of the piston 96 be located at the ring-type for being arranged at supporting member 100 Removable along rotary shaft X-direction in the state of in 101, the space surrounded by the base portion 960 of groove portion 101 and piston 96 turns into supply The grease chamber R of the driving oil pressure of piston 96.

It is provided with not between the face of side opposite with grease chamber R of the base portion 960 of piston 96 and the round plate 41 of torque-converters cover 4 The spring of diagram, the direction for making base portion 960 be accommodated in groove portion 101 is acted on (in figure from spring (not shown) to piston 96 always Left direction) pressing force.

In embodiments, when to grease chamber R supply oil pressure when, the side displacement of round plate 41 from piston 96 to torque-converters cover 4.

Moreover, interacting the outside diameter friction of configuration in rotary shaft X-direction to the displacement of the side of round plate 41 by the piston 96 When plate 93 and internal side diameter friction plate 94 are compressed between the press section 963 of piston 96 and round plate 41, outside diameter friction is kept The clutch hub 9 of plate 93 and the rotating against for torque-converters cover 4 of holding internal side diameter friction plate 94 are limited according to compression stress, most The state (lockup state) that torque-converters cover 4 and clutch hub 9 do not link revolvably relatively is reached eventually.

In addition, when oil pressure is cut off to grease chamber R supply, piston 96 passes through the active force from spring effect (not shown) To direction (left direction in figure) displacement that base portion 960 is accommodated in groove portion 101, returning to allows to keep outside diameter friction plate 93 The state (released state) rotated against of the torque-converters cover 4 of clutch hub 9 and holding internal side diameter friction plate 94.

In embodiments, by the grease chamber R between the groove portion 101 of piston 96, the piston 96 and supporting member 100, by The outside diameter friction plate 93 of the holding of clutch hub 9, the internal side diameter friction plate 94 kept by supporting hub 95 constitute lockable mechanism portion 16.

Be additionally, since clutch hub 9 with and the turbine hub 53 of turbine 5 that rotates integrally of input shaft 120 link, so working as When lockable mechanism portion 16 turns into lockup state, the rotary driving force for being input to the engine of torque-converters cover 4 is directly inputted to input Axle 120.

In the supporting member 100 of supporting piston 96, axle portion 102 is inserted in outside the internal perisporium 961 of piston 96, on the edge of piston 96 During axis direction displacement, outer peripheral face 102a of the internal perisporium 961 along axle portion 102 enters line slip, thus, prevent piston 96 relative to Rotary shaft X inclination.

Jut 103 positioned at a side of axle portion 102 is the position of the positioning of the bent axle for engine (not shown), Insertion is arranged at the through hole 41a of the round plate 41 of torque-converters cover 4, positioned at engine side (not shown).

In axle portion 102, the support holes with the end 104 set along rotary shaft X are in the inner opening of torque converter casing 2, front end 120a The input shaft 120 that side inserts the support holes 104 is rotatably supported by the support holes 104 around rotary shaft X.

In axle portion 102 and the opposite side of jut 103, the wall portion 105 for having ring-type is extended to radial outside, in the wall Portion 105 is provided with above-mentioned groove portion 101 with the opposite face of round plate 41.

In axle portion 102, rotary shaft X radial direction (thickness direction) insertion axle portion 102 is provided with oil circuit S5, S8 (oilhole), These oil circuits S5, S8 is provided spaced apart in rotary shaft X-direction.

One oil circuit S8 is formed from the position that the bottom 104a of support holes 104 is substantially uniform with the direction orthogonal with rotary shaft X, On the basis of position of the lockable mechanism portion 16 for the base portion 960 of the piston 96 of the situation of lockup state, it is arranged to than piston 96 more connect by the region of the side of round plate 41 with support holes 104.

Therefore, when lockable mechanism portion 16 is lockup state, the region more by the side of round plate 41 and branch than piston 96 Bearing bore 104 also can always be connected via oil circuit S8, the opening (symbol P1 in reference picture 3) of the oil circuit S8 in torque converter casing 2 into For discharge mouthful of the oil phase for torque converter casing 2.

Another oil circuit S5 tilts predetermined angular relative to rotary shaft X and set, during with lockable mechanism portion 16 for released state On the basis of the position of the base portion 960 of piston 96, it is arranged to connect groove portion 101 (grease chamber R) with support holes 104.

Here, the front end 120a sides of input shaft 120 are inserted in support holes 104, in the front end 120a of the input shaft 120 Side, inner circumferential opening of the oilhole 123 connected with oil circuit S6 described later in support holes 104.

In embodiments, with the oil circuit S5 of the inner circumferential of support holes 104 aperture position and the oil of the inner circumferential of support holes 104 The consistent mode of the aperture position in hole 123 sets the position of oil circuit S5 and oilhole 123.

Therefore, when lockable mechanism portion 16 is released state, grease chamber R and oil circuit S6 also can via oilhole 123 and Oil circuit S5 is always connected.

As shown in figure 1, being supported by the cylindric stator of the insertion stator 6 of input shaft 120 of the supporting front end 120a sides of hole 104 The gear portion (not shown) side that axle 66 is extended in transmission case 28.

Stator 6 is made up of multiple stator vanes 62 of base portion 61 and the outer peripheral face for being disposed in base portion 61, and by supporting base The one-way clutch OWC of the inner circumferential in portion 61, it is only rotatable on the direction around rotary shaft X.

As shown in figure 1, one-way clutch OWC possesses the outer ring 63 of the base portion 61 of periphery fixed stator 6, is connected to outer ring 63 Inner peripheral surface clutch main body 64, be connected to clutch main body 64 inner peripheral surface set inner ring 65.

The one end 66a for having the stator axis 66 extended along input shaft 120, stator axis are fitted together in the inner circumferential spline of inner ring 65 66 extend between the cylindrical portion 331 and input shaft 120 of impeller of pump sleeve 33 to the side of transmission case 28 (left side in figure).

The support 29 of the embedded ring-type for being fixed on transmission case 28 in the other end 66b sides of stator axis 66.It is used as fixation The stator axis 66 of axle can not rotate around rotary shaft X.

As shown in figure 3, in stator axis 66, from rotary shaft X radial direction with the cylindrical portion 331 of impeller of pump sleeve 33 and The region that sprocket wheel 27 is overlapped, is provided with the thinner wall section 661 of the thickness of thin of rotary shaft X radial direction compared with other regions.

The thinner wall section 661 sets the recess for the radial direction for concaving towards rotary shaft X in the inner circumferential of stator axis 66 and formed, in thinner wall section 661 periphery, is provided spaced apart supporting the bushing B1 and support chain of the inner circumferential of impeller of pump sleeve 33 along rotary shaft X-direction The bushing B3 of the inner circumferential of wheel 27.

The thinner wall section 661 of stator axis 66 is arranged at, positioned at the bushing B1 of side and positioned at opposite side in rotary shaft X-direction Bushing B3 from rotary shaft X radial direction positioned at thinner wall section 661 region in length L1 scope.

In the stator axis 66 of tubular, from the sleeve 67 of the side of transmission case 28 (left side in figure) interpolation tubular, the sleeve 67 Front end 67a is located at than thinner wall section 661 more by one-way clutch OWC sides (right side in figure).

For sleeve 67, the periphery in other regions in addition to the region of thinner wall section 661 seamlessly with stator axis 66 Inner circumferential connect, in other regions in addition to thinner wall section 661, between the inner circumferential of stator axis 66 and the periphery of sleeve 67 oil not Circulation.

In embodiment, by the inner circumferential (inner circumferential of thinner wall section 661) and sleeve 67 in the region provided with recess of stator axis 66 Periphery between gap used as the oil circuit (S3, S3a) of oil circulation, the inner circumferential of the stator axis 66 and the periphery of sleeve 67 it Between oil circuit (S3, S3a) in the circumference around rotary shaft X provided with multiple.

The thinner wall section 661 positioned at the stator axis 66 more upper than rotary shaft X in figure 3, in rotary shaft X-direction One end be provided with make to be formed between thinner wall section 661 and sleeve 67 oil circuit S3, with the cylindrical portion 331 of impeller of pump sleeve 33 The oil circuit 68 of oil circuit S2 connections between the periphery of inner circumferential and stator axis 66.

In addition, also being provided with making the oil circuit S1 of oil circuit S3 and the support 29 located at transmission case 28 (oily in the other end Discharge path) connection oil circuit 69.

Here, from rotary shaft X radial direction, oil circuit S3 is by the inner circumferential provided with the cylindrical portion 331 in impeller of pump sleeve 33 The crosscutting rotary shaft X-direction in region of bushing B1, B3 between the periphery of stator axis 66 are set.

Therefore, the oil circuit S1 and oil circuit S2 that the region provided with bushing B1, B3 are clipped in the middle are roundabout positioned at stator axis 66 Oil circuit S3 in thickness and be interconnected.

In addition, region (the reference in the plectane portion 332 of impeller of pump sleeve 33 in rotary shaft X-direction in crosscutting oil circuit S2 Symbol P2 in figure) turn into discharge mouthful of the oil phase for torque converter casing 2.

Internal side diameter in the region for being provided with thinner wall section 661 of stator axis 66, the inner circumferential of sleeve 67 and input shaft 120 it is outer Gap between week turns into the oil circuit S4 of the part on the supply road for the action oil pressure for constituting lockable mechanism portion 16.

The thinner wall section 661 for being located at the stator axis 66 than rotary shaft X more on the lower in figure 3, in rotary shaft X-direction The other end is provided with the oil circuit 69a for making oil circuit S3a be connected with the oil circuit S1a of the support 29 located at transmission case 28.

In addition, through hole 67c is formed with the position corresponding with oil circuit S3a of sleeve 67, positioned at stator axis 66 The oil circuit S1a in outside and oil circuit S4 positioned at the inner side of stator axis 66 are interconnected via oil circuit S3a.

Therefore, the oil circuit S1a from the side of transmission case 28 is being implemented to the oil circuit S4 supply oil of the inner side positioned at stator axis 66 In mode, by supplying the action oil pressure of lockable mechanism portion 16 from oil circuit S1a, by the inner circumferential and set of the thinner wall section of stator axis 66 Oil circuit S3a between the periphery of cylinder 67 is used as the part on the supply road of the action oil pressure of lockable mechanism portion 16.

Moreover, the supply road of the action oil pressure is in order to avoid the lining between the periphery of input shaft 120 and stator axis 66 Cover the spline fitting portion of B2, turbine hub 53 and input shaft 120 and act oil pressure to the grease chamber R supplies of lockable mechanism portion 16, and The inside of roundabout input shaft 120.

The oil circuit 121 linearly extended along rotary shaft X in the inside of the input shaft 120 is formed with input shaft 120.Should Oil circuit 121 has the internal diameter wide diameter portion 121a bigger than the side of transmission case 28, the wide diameter portion in the front end 120a sides of input shaft 120 121a is open in the front end 120a of input shaft 120, makes oil circuit 121 and the inside of the support holes 104 of above-mentioned supporting member 100 connects It is logical.

The region provided with wide diameter portion 121a in input shaft 120, oil circuit 121 turns into the thickness of the radial direction of input shaft 120 Thinned thinner wall section 122, the sleeve 7 of cylindrical shape is inserted from the front end 120a of input shaft 120 to the oil circuit 121.

The front end 7a insertion wide diameter portions 121a of sleeve 7 reaches the region of the oil circuit 121 of common internal diameter, and sleeve 7 is with continuously Unoccupied place is crimped on the prescribed limit of the state setting front end 7a sides of the inner circumferential of input shaft 120 (oil circuit 121).

It is provided with the external diameter wide diameter portion 71 bigger than front end 7a sides in the cardinal extremity 7b sides of sleeve 7, sleeve 7 is seamlessly to crimp In the state of wide diameter portion 121a (thinner wall section 122) inner circumferential, the region provided with wide diameter portion 71 is set.

Therefore, region in the oil circuit 121 positioned at the front end 7a sides of sleeve 7 and cardinal extremity 7b sides provided with wide diameter portion 71 Region, oil circuit 121 inner circumferential and sleeve 7 front end 7a sides region periphery between or the inner circumferential of thinner wall section 122 and expanding Do not circulate oil between the periphery in portion 71.

In embodiment, the space in the wide diameter portion 121a in oil circuit 121 is divided into the space of outside diameter by sleeve 7 The space (oil circuit S7) of (oil circuit S6) and internal side diameter, using space (oil circuit S7) the giving as oil to Fluid-transmission portion 15 of internal side diameter Row road is used, on the other hand, regard the space (oil circuit S6) of outside diameter as the supply of the action oil pressure of lockable mechanism portion 16 Oil circuit is utilized.

Therefore, in the thinner wall section 122 of input shaft 120, in the front end 120a sides (right side in figure) of rotary shaft X-direction, along rotation The rotating shaft X ground of radial direction insertion thinner wall section 122 be formed with oil circuit S6 between the periphery of the inner circumferential for making input shaft 120 and sleeve 7 and The oilhole 123 of the oil circuit S5 connections connected with grease chamber R.

In addition, in the side of transmission case 28 (left side in figure) of thinner wall section 122, along rotary shaft X radial direction insertion thinner wall section 122 Ground is formed with the oilhole 124 for connecting oil circuit S4 and oil circuit S6 between the periphery of input shaft 120 and the inner circumferential of stator axis 66.

Moreover, in embodiments, being provided between the inner circumferential of stator axis 66 and the periphery of input shaft 120 to rotate against The one end 66a sides of ground supporting stator axis 66 and the bushing B2 of input shaft 120, the side of transmission case 28 is more being leaned on than bushing B2 (left side in figure), oilhole 124 is connected with oil circuit S4.

And then, in input shaft 120, end 120a sides are located further forward in the region being fitted together to than the spline of turbine hub 53 (right in figure Side), oilhole 123 is connected via oil circuit S5 with grease chamber R.

Therefore, the roundabout wide diameter portion 121a being formed in input shaft 120 in supply road of the action oil pressure of lockable mechanism portion 16 Region oil circuit S6 be in rotary shaft X-direction with specific length L2 oil circuit S6 and set, to grease chamber R supply driving The flowing of oil pressure will not be obstructed by the interference of bushing B2 or turbine hub 53.

In addition, the oil circuit S8 used as oil to the discharge road in Fluid-transmission portion 15, via above-mentioned supporting member 100 Support holes 104 and oil circuit S8, are connected with the space in torque-converters cover 4.

Effect to the fluid torque-converter 1 of the structure is illustrated.

Using oil circuit 121 (oil circuit S7) as between impeller of pump 3 and turbine 5 torque transmission oily supply road and In the case of use, the oily support holes 104 and oil circuit S8 via supporting member 100 from the supply of oil circuit 121 are into torque-converters cover 4 Space supply.

Moreover, the oil in space in torque-converters cover 4 is between stator axis 66 and the cylindrical portion of impeller of pump sleeve 33 331 Oil circuit S2, and by the oil circuit S3 for the inner circumferential side for being formed at stator axis 66, it is discharged to the oil circuit S1 of transmission case 28.

Make using oil circuit 121 (oil circuit S7) as the oily discharge path for the torque transmission between impeller of pump 3 and turbine 5 In the case of, the oil supplied from the oil circuit S1 of transmission case 28, by the oil circuit S3 of the inner circumferential side that is formed at stator axis 66 and Oil circuit S2 between stator axis 66 and the cylindrical portion of impeller of pump sleeve 33 331, the space supply into torque-converters cover 4.

Moreover, the support holes 104 and oil circuit S8 of oil in space in torque-converters cover 4 by supporting member 100, from input The oil circuit 121 of axle 120 is discharged.

The action oil pressure of lockable mechanism portion 16 supplies road (oil circuit from the oil pressure for the support 29 for being arranged at transmission case 28 S1a), the oil circuit S3a and between the periphery of the inner circumferential by stator axis 66 and sleeve 67, be supplied to input shaft 120 periphery and After oil circuit S4 between the inner circumferential of sleeve 67, by the oil circuit S6 being arranged in the thinner wall section 122 of input shaft 120, afterwards, pass through Oil circuit S5 is supplied to the grease chamber R of piston 96.

As above, in embodiments, (1) a kind of oil path structure, it is characterised in that with stator axis 66 (first axle), The periphery of stator axis 66 has bushing B1 (clutch shaft bearing), oil circuit S1 (the first oil circuit) and oil circuit S2 (the second oil circuit), in stator The inner circumferential of axle 66 has sleeve 67, has oil circuit S3 (the 3rd oil circuit) between sleeve 67 and stator axis 66, oil circuit S1 is via oil Road S3 is connected with oil circuit S2, from the radial direction of stator axis 66, and oil circuit S3 is overlapped with bushing B1.

When such constitute, then by sleeve 67, in the region (space) of the inner circumferential of stator axis 66, supported with stator axis 66 The position that the bushing B1 connect is overlapped, is configured to the roundabout bushing B1 abutted with stator axis 66 oil circuit S3 (roundabout oil circuit).

Therefore, at additional oil pressure path, the bushing B1 abutted with stator axis 66 position can not be changed and form circuitous Go back to the bushing B1 abutted with stator axis 66 oil pressure path.

It therefore, there is no need to carry out the change or the significantly design of oil path structure of bushing B1 (clutch shaft bearing) position Change, and improve the free degree of the setting in oil pressure path.

(2) it is set to following structure：Have in the region (space) of the inner circumferential of stator axis 66 and divided by sleeve 67 with oil circuit S3 From oil circuit S4 (the 4th oil circuit).

When such constitute, then the region (space) of the inner circumferential of stator axis 66 is divided into what is be separated from each other by sleeve 67 Oil circuit S3 and oil circuit S4, therefore, it can the oil circuit and stator for making to be formed between the periphery of the inner circumferential of stator axis 66 and sleeve 67 Other oil communications of the inner side and outer side of axle 66, therefore, the free degree of the setting of oil circuit are improved.

(3) a kind of oil path structure of fluid torque-converter 1, in the torque converter casing 2 being made up of impeller of pump 3 and torque-converters cover 4 Possesses the Fluid-transmission portion 15 that is made up of impeller of pump 3, turbine 5 and stator 6 and can not be relative with turbine 5 by torque-converters cover 4 The lockable mechanism portion 16 rotatably coupled, wherein, can be relative (on coaxial) on common rotary shaft X in Fluid-transmission portion 15 Stator 6 is configured between the impeller of pump 3 and turbine 5 that are rotatably oppositely disposed, the rotation driving of impeller of pump 3 is input to from driving source Power passes to turbine 5 via the fluid (oil) in torque converter casing 2, and the oil path structure has：The stator axis 66 (first axle) of tubular, It is set along rotary shaft X, and a side of long side direction links with the internal side diameter of stator 6, and stator 6 is maintained at into predetermined bits Put, another side is fixed in transmission case 28 (fixed sidepiece part)；Impeller of pump sleeve 33, it is set along rotary shaft X, long side One side in direction and the internal side diameter of impeller of pump 3 link, and inner side is by stator axis 66 along rotary shaft X-direction insertion；Bushing B1 (first Bearing), it is arranged between the inner circumferential of the cylindrical portion 331 of the periphery of stator axis 66 and impeller of pump sleeve 33, relatively rotatably Support stator axis 66 and cylindrical portion 331；Oil circuit S1 (the first oil circuit), it is located at bushing B1 speed changer in rotary shaft X-direction The side of case 28 (a side side)；Oil circuit S2 (the second oil circuit), it is located at the periphery of the stator axis 66 of the side of Fluid-transmission portion 15 (opposite side) Between the inner circumferential of cylindrical portion 331；The sleeve 67 (the first sleeve) of tubular, inserts in stator axis 66 in it；Oil circuit S3 (the 3rd oil Road), it is formed between the inner circumferential of the periphery of sleeve 67 and stator axis 66；The oil circuit S4 (the 4th oil circuit) of the inner side of sleeve 67, Oil circuit S3 is arranged on the scope from a lateral opposite side across bushing B1, by oil circuit S1 (first from rotary shaft X radial direction Oil circuit) and oil circuit S2 (the second oil circuit) via oil circuit S3 (the 3rd oil circuit) connections.

When such constitute, then bushing B1 is avoided, the discharge by oil circuit S1, oil circuit S2 and oil circuit the S3 oil pressure constituted is formed Road (the first oil pressure path).

Therefore, when the supply road or discharge path that oil circuit S1 is set to oil pressure, then stator axis 66 and impeller of pump sleeve 33 it Between oil circuit S2 connected with the space in torque converter casing 2, therefore, it can by participate in constituted by impeller of pump 3, turbine 5 and stator 6 Fluid-transmission portion 15 in rotary driving force transmission oil, suitably supplied to the torque converter casing 2 for storing Fluid-transmission portion 15 Give, or suitably discharged from torque converter casing 2.

If moreover, bushing B1 is located at the midway of oil circuit, the oil in the region provided with bushing B1 in oil circuit can not be obtained Road surface is accumulated, but if being constructed as described above, then the part (bushing B1 etc.) of the movement of oil may be hindered not to be located at oil circuit S1 to oil circuit S3 Between, oil circuit area can be ensured throughout the total length of stream.

Thus, because the supply or discharge of oil do not postpone, so can suitably prevent to oil pump (not shown) or oil pump Driving source (such as engine) load increase situation occur.

(4) it is set to following structure：The recess of outer circumferential side is concaved towards in the inner circumferential formation of stator axis 66, being blocked by sleeve 67 should The inner side in the region of recess, forms oil circuit S3.

If so constituted, it need not increase and prolong from fluid torque-converter 1 to transmission case 28 to set oil circuit S3 The external diameter of the cylindrical portion 331 for the impeller of pump sleeve 33 stretched, therefore, it can not change setting for existing fluid torque-converter significantly Count and set oil circuit S3.

(5) it is set to following structure：The insertion of cylindrical portion 331 of impeller of pump sleeve 33 is arranged on the bending moment for storing torque converter casing 2 Opening 26 on device cover 25 simultaneously extends to the side of transmission case 28, inner circumferentials and cylinder of the bushing B1 in the opening 26 of sealing torque-converters cover 25 The internal side diameter of oil sealing S between the periphery in shape portion 331, cylindrical portion 331 and stator axis 66 can be supported with the relative rotation.

When changing bushing B1 position, then between the inner circumferential of the opening 26 of torque-converters cover 25 and the periphery of cylindrical portion 331 Sealing may reduce or there may be inclined around the axle center of the rotary shaft X input shafts 120 rotated or impeller of pump sleeve 33 Tiltedly, accordingly, it would be desirable to carry out the design alteration around input shaft 120.

As described above, the inner side in recessed region by forming the inner circumferential that stator axis 66 is blocked by sleeve 67 and form oil Road S3, the position without changing bushing B1, is also not in the reduction of sealing or the generation of axis deviation therefore Problem.

(6) a kind of oil path structure, it is characterised in that there is input shaft 120 (second in the inner circumferential of sleeve 67 (the first sleeve) Axle), there is sleeve 7 (second sleeve) in the inner circumferential of input shaft 120, there is bushing B2 (the second axles in the periphery of input shaft 120 Hold) and oil circuit S5 (the 5th oil circuit), there is oil circuit S7 (the 7th oil circuit) in the inner circumferential of sleeve 7, oil circuit S4 is via oil circuit S6 and oil Road S5 connections, from the radial direction of input shaft 120, oil circuit S6 is overlapped with bushing B2.

When such constitute, then in the case that the inner periphery and the outer periphery of stator axis 66 are configured with bushing B1, B2, also can Enough avoid bushing B1, B2 and form oil pressure path.Therefore, at additional oil pressure path, bushing B1, B2 position can not be changed Put, and roundabout bushing B1, B2 oil pressure path can be formed.

(7) a kind of oil path structure, has：Input shaft 120 (the second axle), it is from the side of transmission case 28 (opposite side) insertion set The inner side of cylinder 67, and make front end 120a sides positioned at the internal side diameter of lockable mechanism portion 16；Oil circuit 121, its in the input shaft 120 along Rotary shaft X extends, and in front end 120a openings；Sleeve 7 (second sleeve), it is inserted from the front end 120a sides of input shaft 120 Into oil circuit 121；Bushing B2 (second bearing), it is arranged between the periphery of the inner circumferential of stator axis 66 and input shaft 120, and Stator axis 66 and input shaft 120 can be supported with the relative rotation；Side (the transmission case 28 of bushing B2 in rotary shaft X-direction Side) be located at input shaft 120 outside oil circuit S4 (the 4th oil circuit)；And positioned at opposite side, and turn into driving oil pressure to locking The oil circuit S5 (the 5th oil circuit) on the supply road of mechanism part 16, oil circuit 121 (internal oil passages) is by being inserted into the tubular of the oil circuit 121 Sleeve 7 be divided into the inner side of oil circuit S6 (the 6th oil circuit) and sleeve 7 between the inner circumferential of the periphery of sleeve 7 and input shaft 120 Oil circuit S7 (the 7th oil circuit), in oil circuit 121, oil circuit S6 is arranged on from rotary shaft X-direction from rotary shaft X radial direction One lateral opposite side is across bushing B2 scope, and oil circuit S4 and oil circuit S5 are via oil circuit S6 connections.

If so constitute, driving oil pressure to the supply road (the second oil pressure path) of lockable mechanism portion 16 from oil circuit S4, Oil circuit S5 and oil circuit S6 avoid bushing B2 and formed.

Therefore, if by the driving oil pressure of lockable mechanism portion 16 to oil circuit S4 supply, oil circuit S4 finally with piston 96 Grease chamber R connection, therefore, it can suitable control lockable mechanism portion 16 progress lockup state and released state switching.

If moreover, bushing B2 is located at the midway of oil circuit, the oil in the region provided with bushing B2 in oil circuit can not be obtained Road surface is accumulated, but if being constructed as described above, then the part (bushing B2 etc.) of the movement of oil may be hindered not to be located at oil circuit S4 to oil circuit S6 Between, oil circuit area can be ensured throughout the total length of stream, therefore, oily supply will not be delayed.

Therefore, it can with it is appropriate at the time of carry out switching of the lockable mechanism portion 16 to lockup state.

(8) it is set to following structure：In the inner circumferential of the stator axis 66 configured along rotary shaft X, along around rotary shaft it is circumferential every The standard width of a room in an old-style house is blocked the area for being provided with these recesses by the sleeve 67 of tubular every forming at least two recess for concaving towards outer circumferential side At least two oil circuit S3, S3a are formed with the inner side in domain, and the thickness range of radial direction in stator axis 66, stator axis will be located at The oil circuit S1 and oil circuit S2 in 66 outside positioned at the oil circuit S1a in the outside of stator axis 66 and will be located at via oil circuit S3 connections The oil circuit S4 of the inner side of stator axis 66 is via oil circuit S3a connections.

, then can be from the arbitrary in rotary shaft X circumference of the region for being provided with stator axis 66 when such constitute The oil that position is supplied to the inner or outer side supply of stator axis 66 from oil circuit S1, S1a, therefore, the inner or outer side of stator axis 66 Other oil circuits configuration the free degree improve.

Further, since form new oil circuit S3, S3a using the radial thickness of stator axis 66, so need not be in order to set New oil circuit and increase stator axis 66 or positioned at the stator axis 66 outside diameter impeller of pump sleeve 33 external diameter.Therefore, turn into The high oil path structure of the setting free degree in the discharge path of the oil pressure in fluid torque-converter 1.

(9) it is set to following structure：Oil circuit S3a between the inner circumferential of stator axis 66 and the periphery of sleeve 67 is via located at stator The oil circuit 69a of axle 66 is connected with the oil circuit S1a in the outside positioned at stator axis 66, also, via the through hole 67c located at sleeve 67 Connected with the oil circuit S4 positioned at the inner side of stator axis 66.

So, in the oil path structure shown in Fig. 3, by setting through hole 67c in sleeve 67, it is formed at stator axis 66 Oil circuit S3a between inner circumferential and sleeve 67 is with the oil circuit S1a positioned at the outside of stator axis 66 and positioned at the inner side of stator axis 66 Oil circuit S4 is connected, and therefore, it can suitably supply oil to the oil circuit S4 of the inner side positioned at stator axis 66 as requested.

(10) a kind of oil path structure, for Fluid-transmission portion 15 (torque-converters room) and (the clutch work of lockable mechanism portion 16 Fill in room) fluid torque-converter 1 oil path structure, it is characterised in that constitute the first oil circuit path containing oil circuit S1, S2, S3, structure Into the second oil circuit path containing oil circuit S4, S5, S6, constitute the 3rd oil circuit path containing oil circuit S7, the first oil pressure path with The oil pressure supply mouth in Fluid-transmission portion 15 and the side connection of oil pressure outlet, the second oil pressure path connects with lockable mechanism portion 16 Connect, the 3rd oil pressure path is connected with the oil pressure supply mouth of torque-converters room and the opposing party of oil pressure outlet.

When such constitute, then it can suitably be carried out without design alteration of fluid torque-converter 1 etc. via fluid Transmission of the rotary driving force of the driving source of driving section 15 to input shaft 120 and the rotary driving force via lockable mechanism portion 16 To the transmission of input shaft 120.

(11) it is set to following structure：In the oil circuit 121 of input shaft 120, the internal diameter wide diameter portion 121a quilt bigger than the oil circuit 121 The front end 120a prescribed limits away from input shaft 120 are set in, internal diameter are provided with the cardinal extremity 7b sides of sleeve 7 than front end 7a sides bigger Wide diameter portion 71, sleeve 7 are so that front end 7a sides are seamlessly crimped on the inner circumferential of oil circuit 121, while making the area provided with wide diameter portion 71 The state that domain is seamlessly crimped on wide diameter portion 121a (thinner wall section 122) inner circumferential is set, in the wide diameter portion 121a in oil circuit 121 Space the space (oil circuit S6) of outside diameter and the space (oil circuit S7) of internal side diameter are divided into by sleeve 7.

When such constitute, due to the external diameter of input shaft 120 need not be increased in order to set oil circuit S6, it is possible to no Significantly change the design of existing fluid torque-converter and set oil circuit S6.

Fig. 4 is the figure for the oil path structure for illustrating variation.

In the above-described embodiment, following situations are shown：(a) a kind of oil circuit, it is located at the outside of stator axis 66, its In, the oil circuit S1 for the side (side of transmission case 28) for clipping bushing B1 will be located in rotary shaft X-direction and positioned at opposite side (stream The side of body driving section 15) oil circuit S3 connections of the oil circuit S2 between the inner circumferential for the periphery and stator axis 66 for being arranged at sleeve 67, And then, a kind of (b) oil circuit, it is located at the outside of stator axis 66, wherein, clip the one of bushing B1 by being located in rotary shaft X-direction The oil circuit S1a of side (side of transmission case 28) and oil circuit positioned at the inner side of stator axis 66 are to prolong across bushing B3, B1 internal side diameter The oil circuit S4 of the bushing B2 positioned at the side of Fluid-transmission portion 15 is extended, via the inner circumferential for the periphery and stator axis 66 for being arranged at sleeve 67 Between oil circuit S3a connections.

Here, the oil circuit being formed between sleeve 67 and stator axis 66 is not limited only to positioned at the oil in the outside of stator axis 66 Mode or connect the oil circuit positioned at the oil circuit in the outside of stator axis 66 and positioned at the inner side of stator axis 66 that road is connected to each other Mode.

For example, as shown in Figure 4, or following structures：By the oil circuit S3 between sleeve 67 and stator axis 66 in rotation It is divided into two oil circuits in axle X-direction, an oil circuit S3b is another by positioned at oil circuit S1b and oil circuit the S2 connection in the outside of stator axis 66 Oil circuit S3c is by the oil circuit S1c positioned at the outside of stator axis 66 and the oil circuit S4 connections positioned at the inner side of stator axis 66.

In this case, in the inner circumferential of stator axis 66, the area of thin-walled is turned into provided with two along rotary shaft X-direction interval Domain, and two oil circuits S3b, S3c of formation between sleeve 67 and stator axis 66.

Moreover, the inner circumferential of the support 29 in transmission case 28, two oil circuits are offered along rotary shaft X-direction interval S1b, S1c, make oil circuit 69b, 69b that these oil circuits S1b, S1c is connected with oil circuit S3b, S3c by by stator axis 66 along thickness side Formed to (rotary shaft X radial direction) insertion.

In addition, in sleeve 67, through hole 67d is provided with the position corresponding with oil circuit S3c, by oil circuit S3c and oil circuit S4 is interconnected via through hole 67d.

Therefore, the oil circuit by the oil circuit S1b and oil circuit S2 in the outside of stator axis 66 between sleeve 67 and stator axis 66 S3b is connected, the oil circuit S4 of the oil circuit S1c in the outside of stator axis 66 and the inner side of stator axis 66 via sleeve 67 and stator axis 66 it Between oil circuit S3c connection.

So, in the oil path structure shown in Fig. 4, by the way that suitably change is formed at stator axis in rotary shaft X axial direction The position of the recess of 66 inner circumferential, the oil circuit interval that will be formed between the inner circumferential of stator axis 66 and sleeve 67 is in rotary shaft X axle set up it is multiple, can be as requested to the oil circuit S4 of the inner side positioned at stator axis 66 or positioned at the outer of stator axis 66 The oil circuit S2 of side suitably supplies oil.

(12) it is set to following structure：Using the oil circuit S3c between the inner circumferential for the periphery and stator axis 66 for being formed at sleeve 67, By the oil circuit S1c positioned at the outside of stator axis 66 and the oil circuit S4 connections positioned at the inner side of stator axis 66.

When such composition, then the oil circuit from the side of transmission case 28 can be supplied to the oil circuit S4 of the inner side positioned at stator axis 66 The oil of S1c supplies.

Thus, in rotary shaft X axial direction, oil circuit S1c and oil circuit S4 are separately present, and bushing etc. can hinder the portion of the flowing of oil Part is located at inner circumferential or the periphery in the region between these oil circuits S1c and oil circuit S4 of stator axis 66, even if in this case, Also being capable of the oil circuit S3c through the inside for being formed from stator axis 66, the supply oil from oil circuit S1c to oil circuit S4.

(13) it is set to following structure：In the inner circumferential of the stator axis 66 configured along rotary shaft X, between edge rotation direction of principal axis is separated Every forming at least two recesses for concaving towards outer circumferential side, the inner side in the region for being provided with these recesses is blocked with the sleeve 67 of tubular, At least two oil circuit S3b, S3c are formed with the thickness range of the radial direction of stator axis 66.

When such constitute, then can from the arbitrary position in the region for being provided with stator axis 66 of rotary shaft X-direction to The inner or outer side of stator axis 66 supplies the oil supplied to oil circuit S3b, S3c, other oil circuits of the inner or outer side of stator axis 66 Configuration the free degree improve.

Further, since form new oil circuit S3b, S3c using the thickness of the radial direction of stator axis 66, so need not be in order to set Put new oil circuit and increase stator axis 66 or positioned at the stator axis 66 outside diameter impeller of pump sleeve 33 external diameter.Therefore, into For the high oil path structure of the setting free degree in the discharge path of the oil pressure of fluid torque-converter 1.

In addition, along the circumferentially spaced interval around rotary shaft X formed for the recess that forms oil circuit with rotary shaft X along axle The situation that the recess for forming oil circuit is formed to interval is compared, due to dividing the groove that (segmentation) natively has, so right Design is favourable.

In addition, the invention is not restricted to above-mentioned embodiment, what can be carried out in the range of its technological thought is various Change, improved mode.

Claims (5)

1. a kind of oil path structure, it is characterised in that

With first axle,

There is clutch shaft bearing, the first oil circuit and the second oil circuit in the periphery of the first axle,

There is the first sleeve in the inner circumferential of the first axle,

There is the 3rd oil circuit between first sleeve and the first axle,

First oil circuit is connected via the 3rd oil circuit with second oil circuit,

When from the radial direction of the first axle, the 3rd oil circuit is overlapped with the clutch shaft bearing.

2. oil path structure as claimed in claim 1, it is characterised in that

There is the 4th oil circuit separated with the 3rd oil circuit in the inner circumferential of first sleeve.

3. oil path structure as claimed in claim 2, it is characterised in that

There is the second axle in the inner circumferential of first sleeve,

There is second sleeve in the inner circumferential of second axle,

There is second bearing and the 5th oil circuit in the periphery of second axle,

There is the 6th oil circuit between the second sleeve and second axle,

There is the 7th oil circuit in the inner circumferential of the second sleeve,

4th oil circuit is connected via the 6th oil circuit with the 5th oil circuit,

When from the radial direction of second axle, the 6th oil circuit is overlapped with the second bearing.

4. oil path structure as claimed in claim 3, it is characterised in that

With fluid torque-converter, the fluid torque-converter has torque-converters room and clutch plunger room,

The the first oil pressure path for including first oil circuit, second oil circuit and the 3rd oil circuit is constituted,

The the second oil pressure path for including the 4th oil circuit, the 5th oil circuit and the 6th oil circuit is constituted,

The 3rd oil pressure path for including the 7th oil circuit is constituted,

The first oil pressure path is connected with the oil pressure supply mouth of the torque-converters room and a side of oil pressure outlet,

The second oil pressure path is connected with the oil pressure supply mouth of the torque-converters room and the opposing party of oil pressure outlet,

The 3rd oil pressure path is connected with clutch plunger room.

5. the oil path structure as any one of claim 2~4, it is characterised in that

There is the intermediary's oil circuit separated with the 3rd oil circuit between the first axle and first sleeve,

4th oil circuit is connected with intermediary's oil circuit.