WO2021101110A1 - Convertisseur de couple pour véhicule - Google Patents

Convertisseur de couple pour véhicule Download PDF

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Publication number
WO2021101110A1
WO2021101110A1 PCT/KR2020/014839 KR2020014839W WO2021101110A1 WO 2021101110 A1 WO2021101110 A1 WO 2021101110A1 KR 2020014839 W KR2020014839 W KR 2020014839W WO 2021101110 A1 WO2021101110 A1 WO 2021101110A1
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WO
WIPO (PCT)
Prior art keywords
axial direction
main body
elastic
torque converter
coupled
Prior art date
Application number
PCT/KR2020/014839
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English (en)
Korean (ko)
Inventor
김규동
Original Assignee
주식회사 카펙발레오
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Publication of WO2021101110A1 publication Critical patent/WO2021101110A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/1216—Torsional springs, e.g. torsion bar or torsionally-loaded coil springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H41/00—Rotary fluid gearing of the hydrokinetic type
    • F16H41/24—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/08—Torsion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch

Definitions

  • the present invention relates to a torque converter for a vehicle, and more particularly, to a torque converter for a vehicle that prevents the occurrence of drag torque by quickly positioning friction plates when the lockup is released.
  • a torque converter is installed between an engine and a transmission of a vehicle and transmits the driving force of the engine to a transmission using a fluid.
  • a torque converter is an impeller that rotates by receiving the driving force of the engine, a turbine that is rotated by oil discharged from the impeller, and a reactor that increases the rate of change of torque by directing the flow of oil returned to the impeller in the direction of rotation of the impeller ( Also referred to as'stator').
  • the torque converter is equipped with a lock-up clutch (also referred to as a'damper clutch'), which is a means of directly connecting the engine and the transmission, as the power transmission efficiency may decrease if the load acting on the engine increases.
  • the lock-up clutch is disposed between the turbine and the front cover directly connected to the engine so that the rotational power of the engine can be transmitted directly to the turbine.
  • Such a lock-up clutch includes a piston axially movable on the turbine shaft. And the piston is coupled to the friction material in frictional contact with the front cover. And the piston is coupled with a torsion damper capable of absorbing shock and vibration acting in the direction of rotation of the shaft when the friction material is coupled to the front cover.
  • the elastic members formed of compression coil springs capable of absorbing torsional torque when the lock-up clutch is operated so that the driving force of the engine can be directly transmitted to the transmission through the turbine are rotated from the outer peripheral surface side of the retaining plate. It is installed as.
  • the lock-up clutch coupled with the torsion damper may have a multi-plate clutch structure including a plurality of friction plates and a friction material.
  • the lock-up clutch When the lock-up clutch is operated, the load of the piston generated by the pressure is applied to the friction plates. It transmits torque as it is transmitted directly.
  • the present invention was invented to solve the above-described problems, and the problem to be solved by the present invention is to change the coupling structure and shape of the friction plate without additional components to release the friction plates. It is intended to provide a torque converter for a vehicle that minimizes the occurrence of drag torque by quickly positioning it.
  • a torque converter for a vehicle for achieving this object includes a front cover; An impeller coupled to the front cover and rotating together; A turbine disposed at a position facing the impeller; A reactor positioned between the impeller and the turbine to change the flow of oil from the turbine toward the impeller; A lock-up clutch having a piston directly connecting the front cover and the turbine; And a torsion damper coupled to the lock-up clutch.
  • the plurality of friction plates provided in the lock-up clutch may be coupled to have an elastic force toward each other in the opposite direction based on the axial direction.
  • the lock-up clutch includes a first clutch drum coupled to the front cover; At least one first friction plate coupled to the first clutch drum and moving in an axial direction by the piston; A second clutch drum coupled to the torsion damper; At least one second friction plate coupled to the second clutch drum and disposed between the first friction plate and the second clutch drum to move in an axial direction; And a retaining plate disposed on the first clutch drum between the second friction plate and a fixing ring mounted on the first clutch drum. It may include.
  • the second friction plates may include a main body having an inner circumferential surface mounted to the second clutch drum so as to be movable in an axial direction; A plurality of elastic portions formed on the inner circumferential surface of the main body and providing elastic force to the main body in an axial direction when coupled with the other second friction plate; And formed toward the center of the main body from the elastic parts in a radial direction, and when one of the second friction plate and the other of the second friction plate are coupled, each of the main body and the elastic part Supports that are kept spaced apart at regular intervals; It may include.
  • the elastic portion is formed to be inclined at a set angle from the inner circumferential surface of the main body in one direction with respect to the axial direction, and may provide an elastic force to the main body with respect to the support portion.
  • the second friction plates are arranged so that the elastic portions respectively formed on one second friction plate are inclined toward opposite directions based on the elastic portions respectively formed on the other second friction plate and the axial direction
  • the support portions facing each other may be combined in a state in which they are in contact with each other.
  • one elastic part located on the piston side with respect to the axial direction is disposed to be inclined toward the piston as it goes radially outward from the center of the main body
  • the other elastic portion disposed on the side of the torsion damper may be disposed to be inclined toward the torsion damper toward the outer side in the radial direction from the center of the main body.
  • the elastic portion may be integrally extended from the inner peripheral surface of the main body toward the center of the main body.
  • the elastic portion may be formed to be spaced apart at equal intervals along the circumferential direction on the inner circumferential surface of the main body.
  • the retaining plate may be formed in a ring shape, and may include at least one extension coupling portion extending axially outwardly on an outer circumferential surface to be coupled to the first clutch drum.
  • Friction materials may be mounted on both sides of the second friction plate based on the axial direction.
  • the first friction plate disposed on the piston side includes a main body having an outer circumferential surface mounted to the first clutch drum so as to be movable in an axial direction; And a plurality of elastic portions extending from an outer circumferential surface of the main body and formed to be inclined from the main body toward the torsion damper in an axial direction so as to provide an elastic force to the main body in an axial direction. And a support part formed radially outward from the elastic parts. It may include.
  • the retaining plate includes a retaining body having an outer circumferential surface fixedly mounted on the first clutch drum by the fixing ring; A plurality of retaining elastic portions extending from an outer circumferential surface of the retaining body and formed to be inclined from the retaining body toward the piston based on an axial direction so as to provide an elastic force to the retaining body in an axial direction; And a retaining support portion formed radially outward from the retaining elastic portions. It may include.
  • the other first friction plate disposed between the first friction plate and the retaining plate disposed on the piston side is formed in a disk shape, and the other first friction plate
  • the support portion and the retaining support portion may be supported in a state in which the support portion and the retaining support portion are in contact with each other on both side surfaces of the plate on the outer circumferential surface protruding radially outward from the first clutch drum.
  • the torque converter for a vehicle when the lockup is released by changing the shape and coupling structure of the friction plate without additional components, the mutually coupled friction plates return to the initial position by the elastic force. By allowing it to be restored quickly, there is an effect of preventing the friction plates from sticking to the friction material due to the viscosity of the oil, and minimizing the occurrence of drag torque.
  • FIG. 1 is a cross-sectional view of a vehicle torque converter according to an exemplary embodiment of the present invention cut in the axial direction.
  • FIG. 2 is an enlarged view of part A of FIG. 1.
  • FIG. 3 is a partially cut-away exploded perspective view of a lock-up clutch applied to a torque converter for a vehicle according to an embodiment of the present invention.
  • FIG. 4 is a perspective view showing a coupled state of second friction plates applied to a torque converter for a vehicle according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4.
  • FIG. 6 is a diagram illustrating an operation state of a lock-up clutch during lock-up in a vehicle torque converter according to an embodiment of the present invention.
  • FIG. 7 is a diagram illustrating an operation state of a lock-up clutch when a lock-up is released in a vehicle torque converter according to an embodiment of the present invention.
  • FIG. 8 is a partial cross-sectional view of a lock-up clutch in a vehicle torque converter according to another embodiment of the present invention.
  • the front-rear direction or axial direction is a direction parallel to the rotation axis, and the front (front) means one direction that is the power source, e.g., the direction towards the engine, and the rear (rear) means the other direction, e.g., the direction towards the transmission. Therefore, the front (front) means the surface that the surface faces forward, and the rear (rear surface) means the surface that the surface faces rearward.
  • the radial or radial direction means a direction closer to the center or a direction away from the center along a straight line passing through the center of the rotation axis on a plane perpendicular to the rotation axis.
  • a direction away from the center in a radial direction is called a centrifugal direction, and a direction closer to the center is called a centripetal direction.
  • the circumferential direction means a direction surrounding the circumference of the rotation shaft.
  • the outer circumference means the outer circumference
  • the inner circumference means the inner circumference. Accordingly, the outer circumferential surface is a surface facing the rotation axis, and the inner circumferential surface is a surface facing the rotation axis.
  • the circumferential side means a surface in which the normal of the surface is roughly oriented in the circumferential direction.
  • FIG. 1 is a cross-sectional view of a vehicle torque converter according to an embodiment of the present invention cut in the axial direction
  • FIG. 2 is an enlarged view of part A of FIG. 1
  • FIG. 3 is a view showing a torque converter for a vehicle according to an embodiment of the present invention.
  • a partially cut-away exploded perspective view of the applied lock-up clutch FIG. 4 is a perspective view showing a coupled state of second friction plates applied to a vehicle torque converter according to an embodiment of the present invention
  • FIG. 7 is a diagram illustrating an operation state of the lock-up clutch during lock-up release in a vehicle torque converter according to an embodiment of the present invention. .
  • FIG. 1 is a half sectional view for explaining an embodiment of the present invention, showing a torque converter for a vehicle according to an embodiment of the present invention.
  • a vehicle torque converter includes a front cover 2 connected to the crankshaft of an engine to rotate, an impeller 4 connected to the front cover 2 and rotating together, the Turbine 6 disposed at a position facing the impeller 4, and located between the impeller 4 and the turbine 6 to change the flow of oil from the turbine 6 to the impeller 4 side. It includes a reactor (8, or'stator') that delivers.
  • the reactor 8 that delivers oil to the impeller 4 has the same rotational center as the front cover 2.
  • a thrust needle bearing 12 may be provided between the impeller 4 and the reactor 8.
  • the thrust needle bearing 12 may stably support the rotation of the impeller 4 rotating together with the front cover 2.
  • the torque converter according to the embodiment of the present invention is provided with a lock-up clutch 14 as a means for directly connecting the engine and the transmission.
  • the lock-up clutch 14 is disposed between the front cover 2 and the turbine 6.
  • This lock-up clutch 14 has a piston 16 formed in a substantially disk shape.
  • the piston 16 can be rotated in the direction of the center of the shaft and is arranged to be moved in the axial direction.
  • a torsional damper 30 is coupled to the lock-up clutch 14.
  • the torsion damper 30 serves to absorb a torsional force acting in the rotation direction of the shaft and attenuate vibration by transmitting the driving force transmitted through the lock-up clutch 14 to the turbine 6.
  • the torsion damper 30 is, as shown in FIG. 1, a drive plate 31, a first spring 32, a connecting plate 33, a second spring 34, and a driven plate ( 35).
  • the drive plate 31 may be coupled to the second clutch drum 24 of the lock-up clutch 14 by rivets or the like.
  • a plurality of first springs 32 are disposed in a circumferential direction based on a rotation center and are elastically supported by the drive plate 31.
  • This first spring 32 may be formed of a compression coil spring.
  • the connecting plate 33 connects the first spring 31 and the second spring 34 and is disposed to surround the outer circumferential side of the second spring 34.
  • the connecting plate 33 may serve to receive the elastic force of the first spring 31 and transmit it to the second spring 34.
  • the second spring 32 may be disposed on the inner circumference side of the first spring 24 around the rotation axis.
  • the driving force transmitted through the first spring 32 may be transmitted to the connecting plate 33 and then to the second spring 34.
  • This structure can implement a long travel damper that achieves low rigidity of the torsion damper 30.
  • the driving force of the drive plate 31 may be transmitted to the connecting plate 33 through the first spring 32.
  • the first spring 32 may absorb vibrations and shocks in the rotational direction.
  • the driving force transmitted to the connecting plate 33 is transmitted to the driven plate 35 through the second spring 34.
  • the second spring 34 may absorb vibrations and shocks in the rotation direction again.
  • the driven plate 35 may be coupled to the turbine 5 and receive a driving force through the second spring 34.
  • the driving force of the engine transmitted to the second clutch drum 24 is transmitted to the drive plate 31.
  • the driving force transmitted to the drive plate 31 is transmitted to the connecting plate 33 through the first spring 32.
  • the driving force transmitted to the connecting plate 33 is transmitted to the second spring 34.
  • first spring 32 and the second spring 34 are sequentially applied with an elastic force to achieve low rigidity.
  • the driving force of the engine transmitted to the second spring 34 is transmitted to the driven plate 35.
  • the driving force transmitted to the driven plate 35 is transmitted to the spline hub through the turbine 5 and transmitted to the transmission through the input shaft of the transmission.
  • the lock-up clutch 14 applied to the embodiment of the present invention is preferably made of a multi-plate clutch.
  • a plurality of friction plates provided in the lock-up clutch 14 may be coupled to have elastic force toward opposite directions based on an axial direction.
  • the lock-up clutch 14 includes a first clutch drum 18, a first friction plate 22, and a second clutch drum coupled to the front cover 2, as shown in FIGS. 2 and 3. (24), a second friction plate (26), and a retaining plate (28).
  • the first clutch drum 18 is coupled to the front cover 2, has a cylindrical shape, and is disposed in the axial direction.
  • first clutch drum 18 is provided with a fitting hole through which the first friction plate 22 can be fitted on an inner circumferential surface thereof.
  • the first friction plate 22 is provided with fitting protrusions on its outer circumferential side. These fitting protrusions may be inserted into the fitting hole and moved in the axial direction (see FIGS. 1 to 3).
  • the fitting hole of the first clutch drum 18 has an opening at one side in the axial direction and penetrates in a radial direction with respect to the axis.
  • the first friction plate 22 may move in the axial direction by the piston 16.
  • the second clutch drum 24 is disposed at a position at a constant distance from the first clutch drum 18 toward the inside with respect to the radial direction.
  • the second clutch drum 24 is coupled to the torsion damper 30.
  • Another groove through which the second friction plate 26 can be inserted is provided in the second clutch drum 24.
  • the second friction plate 26 is coupled to the second clutch drum 24 and is disposed between the first friction plate 22 and the second clutch drum 24 to move in the axial direction.
  • friction materials 27 may be mounted on both side surfaces of the second friction plate 26 based on the axial direction.
  • the lock-up clutch 14 causes the friction members 27 to move toward the piston ( 16) and the first and second friction plates 22, 26, so that the driving force transmitted to the front cover 2 is transmitted through the first and second friction plates 22, 26. I can.
  • the second clutch drum 24 may also have another fitting hole penetrated like the first clutch drum 18, and the second friction plate 26 is disposed on the inner circumferential side of the second clutch drum.
  • An elastic portion 26b and a support portion 26c inserted into the fitting hole may be provided in the axial direction so that the friction plates 26 are coupled to each other.
  • the retaining plate 28 is disposed on the first clutch drum 18 between the second friction plate 26 and the fixing ring 29 mounted on the first clutch drum 18.
  • the retaining plate 23 may be formed in a ring shape, and may include at least one extension coupling portion 23a extending axially outward on an outer circumferential surface to be coupled to the first clutch drum 15.
  • the second friction plates 26 include a main body 26a, a plurality of elastic portions 26b, and a support portion 26c, as shown in FIGS. 4 and 5.
  • the main body 26a is formed in a ring shape, and the inner circumferential surface is mounted to the second clutch drum 24 so as to be movable in the axial direction.
  • the plurality of elastic parts 26b are integrally formed on the inner circumferential surface of the main body 26a, and when combined with the other second friction plate 26, an elastic force is applied to the main body 26a in the axial direction. Can provide.
  • the elastic part 26b may be integrally extended from the inner circumferential surface of the main body 26a toward the center of the main body 26a.
  • the elastic parts 26b may be formed to be spaced apart at equal intervals along the circumferential direction on the inner circumferential surface of the main body 26a.
  • each of the main body 26a and the elastic part 26b can be maintained to be spaced apart at a predetermined interval.
  • the elastic part 26b is formed to be inclined at a set angle from the inner circumferential surface of the main body 26a in one direction with respect to the axial direction, and provides an elastic force to the main body 26a with respect to the support part 26c. can do.
  • a plurality of the elastic parts 26b are formed along the inner circumference of the main body 26a, but is not limited thereto, and the number of the elastic parts 26b And the position may be changed and applied to provide an optimum elastic force to the piston 16 and the first and second friction plates 22 and 26.
  • the second friction plates 26 have the elastic portions 26b formed on one second friction plate 26, respectively, and the elastic parts 26b formed on the other second friction plate 26, respectively.
  • the support parts 26c facing each other may be combined in a state in which they are in contact with each other.
  • one elastic part 26b positioned on the piston 16 side with respect to the axial direction is radially outward from the center of the main body 26a. It may be disposed to be inclined toward the piston 16 as it goes toward.
  • the other elastic portion 26b disposed on the side of the torsion damper 30 based on the axial direction is toward the torsion damper 30 toward the outer side in the radial direction from the center of the main body 26a. It can be placed obliquely.
  • the elastic portion 26b and the support portion 26c may be formed in a “Y” shape in the two sheets of the second friction plate 26 mutually coupled through the support portions 26c in contact with each other.
  • FIG. 6 is a diagram illustrating an operation state of the lock-up clutch during lock-up in a vehicle torque converter according to an embodiment of the present invention
  • FIG. 7 is a diagram illustrating an operation state of the lock-up clutch when lock-up is released in the vehicle torque converter according to an embodiment of the present invention.
  • the second friction plate 26 is the first friction plate 22 while the main body 26a moves along with the first friction plate 26 in the axial direction toward the retaining plate 28 by a certain amount. They are in frictional contact with each other through the friction material 27.
  • the second friction plates 26 are each of the main bodies ( While 26a) is constricted in a direction opposite to the inclined direction of the elastic portion 26c, the elastically supported state may be maintained.
  • the second friction plates 26 can be quickly separated from the first friction plates 22 by the elastic force provided by each of the elastic portions 26b.
  • the elastic portion 26b is applied to the main body 26a even if the viscosity of the oil acts. It can be separated from each other while quickly returning to the initial position by the elastic force provided.
  • FIG. 8 is a partial cross-sectional view of a lock-up clutch in a vehicle torque converter according to another embodiment of the present invention.
  • the torque converter for a vehicle is the same as all other components except for the lock-up clutch 114 as in the above-described embodiment, and thus a detailed description thereof will be omitted.
  • the lock-up clutch 114 includes a piston 116 formed in a substantially disk shape.
  • the piston 116 can be rotated in the direction of the center of the shaft, and is arranged to be moved in the axial direction.
  • This lock-up clutch 114 is preferably made of a multi-plate clutch.
  • a plurality of friction plates provided in the lock-up clutch 114 may be coupled to have an elastic force toward opposite directions based on an axial direction.
  • the lock-up clutch 114 as shown in Fig. 8, the first clutch drum 118, the first friction plate 122, the second clutch drum 124 coupled to the front cover 2 , A second friction plate 126, and a retaining plate 128.
  • the first clutch drum 118 is coupled to the front cover 2, has a cylindrical shape, and is disposed in the axial direction.
  • first clutch drum 118 is provided with a fitting hole through which the first friction plate 122 can be fitted on an inner circumferential surface thereof.
  • the fitting hole of the first clutch drum 118 has an opening at one side in the axial direction and penetrates in a radial direction with respect to the axis.
  • the first friction plate 122 may move in the axial direction by the piston 16.
  • the fitting hole of the first clutch drum 118 has an opening at one side in the axial direction and penetrates in a radial direction with respect to the axis.
  • the first friction plate 122 may move in the axial direction by the piston 116.
  • an elastic portion 122b and a support portion 122c inserted into the fitting hole may be provided on the outer circumferential side of the first friction plate 122 in an axial direction so that the first friction plates 122 are coupled to each other.
  • the second clutch drum 124 is disposed at a position at a constant distance from the first clutch drum 118 toward the inside with respect to the radial direction.
  • the second clutch drum 124 is coupled to the torsion damper 30.
  • Another fitting hole through which the second friction plate 126 can be inserted is provided in the second clutch drum 124.
  • the second friction plate 126 is coupled to the second clutch drum 124 and is disposed between the first friction plate 122 and the second clutch drum 124 to move in the axial direction.
  • the second clutch drum 124 may also have another fitting hole penetrated like the first clutch drum 118, and the inner circumferential side of the second friction plate 126 is also Another fitting protrusion may be provided in the axial direction.
  • the fitting hole of the second clutch drum 124 has an opening at one side in the axial direction and penetrates in a radial direction with respect to the axis.
  • the second friction plate 126 may be moved in the axial direction by the piston 116.
  • friction materials 127 may be mounted on both sides of the second friction plate 126 based on the axial direction.
  • the lock-up clutch 114 causes the friction material 127 to move toward the piston ( 116) and the first and second friction plates 122, 126, so that the driving force transmitted to the front cover 2 is transmitted through the first and second friction plates 122, 126. I can.
  • the retaining plate 128 is disposed on the first clutch drum 118 between the second friction plate 126 and the fixing ring 129 mounted on the first clutch drum 118.
  • the first friction plate 122 disposed on the piston 116 side includes a main body 122a, a plurality of elastic parts 122b, and a support part 122c. Includes.
  • the main body 122a is formed in a ring shape, and the outer circumferential surface is mounted to the first clutch drum 118 so as to be movable in the axial direction.
  • the plurality of elastic parts 26b extend from the outer circumferential surface of the main body 122a, and to provide an elastic force to the main body 122a in the axial direction from the main body 122a. It may be formed to be inclined toward the tional damper 30.
  • the support part 122c may be formed radially outward from the elastic parts 122b.
  • the other first friction plate 122 may be positioned between the second friction plates 126.
  • the other first friction plate 122 may be formed in a disk shape with a through hole formed in the center so that the support part 122c is in surface contact with one surface.
  • the other first friction plate disposed between the first friction plate 122 and the retaining plate 128 disposed on the piston 116 side. 122 is formed in a disk shape.
  • the retaining plate 128 includes a retaining body 128a, a plurality of retaining elastic parts 128b, and a retaining support part 128c.
  • the retaining body 128a is formed in a ring shape, and an outer circumferential surface of the first clutch drum 118 may be fixedly mounted by the fixing ring 129.
  • the plurality of retaining elastic parts 128b are formed extending from the outer circumferential surface of the retaining body 128a, and the retaining body ( It may be formed to be inclined toward the piston 116 from 128a).
  • the retaining support part 128c may be formed toward the outer side in the radial direction from the retaining elastic parts 128b.
  • the first friction plate 122 and the retaining plate 128 including the main body 122a, the elastic part 122b, and the support part 122c Is protruding radially outward from the first clutch drum 118, and the support portion 122c and the retaining portion are disposed on both sides based on the axial direction of the other first friction plate 122 formed in a disk shape.
  • Each of the support portions 128c may be supported in a state of surface contact.
  • the elastic part 122b is disposed to be inclined toward the torsion damper 30 in an axial direction from the main body 122a, and the retaining elastic part 128b is retained based on the axial direction. It may be disposed obliquely toward the piston 116 side from the inning body 128a.
  • the elastic portion 122b and the retaining elastic portion 128b of the first friction plate 122 positioned on the side of the piston 116 mutually coupled to the first friction plate 122 disposed in the center It may form a “g” shape, and an elastic force may be provided to the main body 122a and the retaining body 128a in opposite directions to each other.
  • the elastic portion 122b moves the main Elastic force may be provided to the body 122a.
  • the retaining elastic portion 128b may provide an elastic force to the retaining body 128a in the locking direction of the piston 116.
  • the lock-up clutch 114 quickly moves the first friction plate 122 and the retaining plate 128 to the initial position while preventing the occurrence of a phenomenon of being stuck from the friction material 127 due to the viscosity of oil. It can be restored to prevent the occurrence of drag torque.
  • the present invention can improve fuel economy by preventing the occurrence of power loss of the engine due to drag torque in advance, and by preventing the performance and durability of the lock-up clutches 14 and 114 from deteriorating, the overall marketability of the torque converter. Can be increased.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

La présente invention porte sur un convertisseur de couple pour un véhicule. Le convertisseur de couple pour un véhicule selon un mode de réalisation de la présente invention comprend: un capot avant; une roue à aubes qui est couplée au capot avant et qui tourne conjointement avec le capot avant; une turbine disposée à une position faisant face à la roue à aubes; un réacteur positionné entre la roue à aubes et la turbine pour modifier le flux d'huile sortant de la turbine de telle sorte que l'huile s'écoule vers la roue à aubes; un embrayage de verrouillage pourvu d'un piston reliant directement le capot avant et la turbine; et un amortisseur de torsion couplé à l'embrayage de verrouillage, une pluralité de plaques de friction disposées dans l'embrayage de verrouillage pouvant être couplées de manière à avoir une élasticité dans des directions opposées par rapport à la direction axiale.
PCT/KR2020/014839 2019-11-20 2020-10-28 Convertisseur de couple pour véhicule WO2021101110A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190149716A KR20210061775A (ko) 2019-11-20 2019-11-20 차량용 토크 컨버터
KR10-2019-0149716 2019-11-20

Publications (1)

Publication Number Publication Date
WO2021101110A1 true WO2021101110A1 (fr) 2021-05-27

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KR (1) KR20210061775A (fr)
WO (1) WO2021101110A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11885397B1 (en) * 2022-09-28 2024-01-30 Schaeffler Technologies AG & Co. KG Damper assembly cover plate

Citations (5)

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KR20110131815A (ko) * 2010-05-31 2011-12-07 현대자동차주식회사 자동변속기용 마찰유닛
JP2016008627A (ja) * 2014-06-23 2016-01-18 日産自動車株式会社 多板摩擦締結要素
KR101803952B1 (ko) * 2016-05-25 2017-12-01 한국파워트레인 주식회사 차량용 토크 컨버터
KR101858186B1 (ko) * 2016-12-26 2018-05-15 주식회사 카펙발레오 차량용 토크 컨버터
KR20180115518A (ko) * 2017-04-13 2018-10-23 주식회사 카펙발레오 래틀 소음 개선형 차량용 토크 컨버터

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
KR20110131815A (ko) * 2010-05-31 2011-12-07 현대자동차주식회사 자동변속기용 마찰유닛
JP2016008627A (ja) * 2014-06-23 2016-01-18 日産自動車株式会社 多板摩擦締結要素
KR101803952B1 (ko) * 2016-05-25 2017-12-01 한국파워트레인 주식회사 차량용 토크 컨버터
KR101858186B1 (ko) * 2016-12-26 2018-05-15 주식회사 카펙발레오 차량용 토크 컨버터
KR20180115518A (ko) * 2017-04-13 2018-10-23 주식회사 카펙발레오 래틀 소음 개선형 차량용 토크 컨버터

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11885397B1 (en) * 2022-09-28 2024-01-30 Schaeffler Technologies AG & Co. KG Damper assembly cover plate

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