JP2020041564A - Torque converter - Google Patents

Abstract

To improve variety of torque transmission patterns.SOLUTION: A torque converter 100 includes: a torque converter body 2; a planetary gear mechanism 3; a first clutch 4; and a second clutch 5. The torque converter body 2 has a front cover 21 into which torque is input from a prime mover 101, an impeller 22, a turbine 23, and a stator 24 . The planetary gear mechanism 3 has: a sun gear 31 which is disposed so as not to rotate; a planetary gear 32; a planetary carrier 33 attached to an output shaft 102; and a ring gear 34 attached to the turbine 23. The first clutch 4 couples the ring gear 34 to the front cover 21. The second clutch 5 couples the planetary carrier 33 to the front cover 21.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a torque converter.

  Patent Document 1 proposes a torque converter having a planetary gear mechanism. This torque converter has a torque transmission pattern that outputs torque from a prime mover via a torque converter and a planetary gear mechanism, or a torque transmission pattern that directly outputs torque from a prime mover without passing through a torque converter and a planetary gear mechanism. ing.

Japanese Patent No. 2925472

  Although the above-described torque converter has two torque transmission patterns, it is preferable to increase the torque transmission patterns to improve the variety of the torque transmission patterns. Therefore, an object of the present invention is to improve the variety of torque transmission patterns.

  A torque converter according to a first aspect of the present invention is configured to output torque from a prime mover to an output shaft. This torque converter includes a torque converter main body, a planetary gear mechanism, a first clutch, and a second clutch. The torque converter body has a front cover, an impeller, a turbine, and a stator to which torque is input from a prime mover. The planetary gear mechanism includes a sun gear, a planetary gear, a planetary carrier that outputs torque to an output shaft, and a ring gear. The first gear, which is one of the sun gear and the ring gear, is non-rotatably disposed. The second gear, which is the other of the sun gear and the ring gear, is attached to the turbine. The first clutch connects the second gear to the front cover. The second clutch connects the planet carrier to the front cover.

  According to this configuration, by setting the first clutch to the clutch-on state and setting the second clutch to the clutch-off state, torque input to the front cover is reduced in the order of the second gear → the planetary gear → the planetary carrier → the output shaft. Can be output. That is, a first torque transmission pattern that outputs torque to the output shaft via only the planetary gear mechanism without passing through the torque converter body can be obtained.

  Further, by setting the first clutch and the second clutch to the clutch-off state, the torque input to the front cover can be output in the order of impeller → turbine → second gear → planetary gear → planetary carrier → output shaft. it can. That is, a second torque transmission pattern that outputs torque to the output shaft via the torque converter body and the planetary gear mechanism can be obtained.

  Further, by setting the first clutch to the clutch off state and setting the second clutch to the clutch on state, the torque input to the front cover can be output in the order of the planet carrier and the output shaft. That is, it is possible to obtain a third torque transmission pattern that outputs torque to the output shaft without passing through the torque converter main body and the planetary gear mechanism.

  As described above, according to the torque converter according to the first aspect of the present invention, three torque transmission patterns of the first to third torque transmission patterns can be obtained, and the versatility of the torque transmission patterns as compared with the related art can be obtained. Can be improved.

  Further, in the torque converter according to the first aspect of the present invention, when the motor is a motor, reverse running can be performed by rotating the motor in the reverse direction. In the case of the reverse traveling, for example, by setting the first clutch to the clutch-on state and setting the second clutch to the clutch-off state, the reverse rotation torque input to the front cover can be reduced to the second gear → the planetary gear → the planetary carrier. → Output can be performed in the order of output shaft. That is, reverse rotation torque can be output to the output shaft only through the planetary gear mechanism without passing through the torque converter main body.

  Preferably, the torque converter further includes a first one-way clutch disposed between the turbine and the second gear.

  Preferably, the torque converter further includes a fixed shaft. The first gear is fixed to a fixed shaft.

  A torque converter according to a second aspect of the present invention is configured to output torque from a motor to an output shaft. This torque converter includes a torque converter main body, a planetary gear mechanism, a first clutch, and a second clutch. The torque converter body has a front cover, an impeller, a turbine, and a stator to which torque is input from a prime mover. The planetary gear mechanism has a sun gear, a planet gear, a planet carrier mounted on an output shaft, and a ring gear mounted on a turbine. The first clutch connects the ring gear to the front cover. The second clutch connects the planet carrier to the front cover.

  According to this configuration, by setting the first clutch to the clutch-on state and setting the second clutch to the clutch-off state, the torque input to the front cover is reduced in the order of ring gear → planetary gear → planetary carrier → output shaft. Can be output. That is, a first torque transmission pattern that outputs torque to the output shaft via only the planetary gear mechanism without passing through the torque converter body can be obtained.

  Further, by setting the first clutch and the second clutch to the clutch-off state, the torque input to the front cover can be output in the order of impeller → turbine → ring gear → planetary gear → planetary carrier → output shaft. . That is, a second torque transmission pattern that outputs torque to the output shaft via the torque converter body and the planetary gear mechanism can be obtained.

  Further, by setting the first clutch to the clutch off state and setting the second clutch to the clutch on state, the torque input to the front cover can be output in the order of the planet carrier and the output shaft. That is, it is possible to obtain a third torque transmission pattern that outputs torque to the output shaft without passing through the torque converter main body and the planetary gear mechanism.

  As described above, according to the torque converter according to the second aspect of the present invention, three torque transmission patterns of the first to third torque transmission patterns can be obtained, and the versatility of the torque transmission patterns as compared with the related art can be obtained. Can be improved.

  Further, in the torque converter according to the second aspect of the present invention, when the prime mover is a motor, reverse running can be performed by reversely rotating the motor. In the case of the reverse running, for example, by setting the first clutch to the clutch-on state and setting the second clutch to the clutch-off state, the reverse rotation torque input to the front cover can be reduced to the ring gear → the planetary gear → the planetary carrier → Output can be performed in the order of the output axis. That is, reverse rotation torque can be output to the output shaft only through the planetary gear mechanism without passing through the torque converter main body.

  Preferably, the torque converter further includes a first one-way clutch disposed between the turbine and the ring gear.

  Preferably, the torque converter further includes a fixed shaft. The sun gear is fixed to a fixed shaft.

  A torque converter according to a third aspect of the present invention is configured to output torque from a motor to an output shaft. This torque converter includes a torque converter main body, a planetary gear mechanism, a first clutch, and a second clutch. The torque converter body has a front cover, an impeller, a turbine, and a stator to which torque is input from a prime mover. The planetary gear mechanism includes a sun gear mounted on a turbine, a planetary gear, a planetary carrier mounted on an output shaft, and a ring gear non-rotatably disposed. The first clutch connects the sun gear to the front cover. The second clutch connects the planet carrier to the front cover.

  According to this configuration, by setting the first clutch to the clutch-on state and the second clutch to the clutch-off state, the torque input to the front cover is output in the order of sun gear → planetary gear → planetary carrier → output shaft. can do. That is, a first torque transmission pattern that outputs torque to the output shaft via only the planetary gear mechanism without passing through the torque converter body can be obtained.

  Further, by setting the first clutch and the second clutch to the clutch-off state, the torque input to the front cover can be output in the order of impeller → turbine → sun gear → planetary gear → planetary carrier → output shaft. That is, a second torque transmission pattern that outputs torque to the output shaft via the torque converter body and the planetary gear mechanism can be obtained.

  Further, by setting the first clutch to the clutch off state and setting the second clutch to the clutch on state, the torque input to the front cover can be output in the order of the planet carrier and the output shaft. That is, it is possible to obtain a third torque transmission pattern that outputs torque to the output shaft without passing through the torque converter main body and the planetary gear mechanism.

  As described above, according to the torque converter according to the third aspect of the present invention, three torque transmission patterns of the first to third torque transmission patterns can be obtained, and the versatility of the torque transmission patterns as compared with the related art can be obtained. Can be improved.

  Further, in the torque converter according to the third aspect of the present invention, when the prime mover is a motor, reverse running can be performed by rotating the motor in reverse. In the case of the reverse running, for example, by setting the first clutch to the clutch-on state and setting the second clutch to the clutch-off state, the reverse rotation torque input to the front cover can be output from the sun gear → the planet gear → the planet carrier → output. It can output in the order of axis. That is, reverse rotation torque can be output to the output shaft only through the planetary gear mechanism without passing through the torque converter main body.

  Preferably, the torque converter further includes a first one-way clutch disposed between the turbine and the sun gear.

  Preferably, the torque converter further includes a fixed shaft. The ring gear is fixed to a fixed shaft.

  Preferably, the torque converter further includes a second one-way clutch disposed between the stator and the fixed shaft.

  ADVANTAGE OF THE INVENTION According to this invention, the diversity of a torque transmission pattern can be improved.

FIG. 1 is a schematic diagram of a torque converter according to a first embodiment. The schematic diagram of the torque converter concerning a 2nd embodiment.

First Embodiment Hereinafter, a first embodiment of a torque converter according to the present invention will be described with reference to the drawings.

[overall structure]
As shown in FIG. 1, the torque converter 100 is arranged so as to be rotatable about a rotation axis O. Torque converter 100 outputs torque from motor 101 to output shaft 102. For example, the output shaft 102 is connected to a speed reducer 103. The prime mover 101 is, for example, an electric motor or a gasoline engine. The torque converter 100 includes a fixed shaft 1, a torque converter main body 2, a planetary gear mechanism 3, a first clutch 4, and a second clutch 5.

[Fixed shaft 1]
The fixed shaft 1 is arranged so as not to rotate. For example, the fixed shaft 1 is fixed to the casing 104. The central axis of the fixed shaft 1 substantially coincides with the rotation axis O of the torque converter 100. The fixed shaft 1 is cylindrical. An output shaft 102 extends through the internal space of the fixed shaft 1.

[Torque converter body 2]
The torque converter body 2 has a front cover 21, an impeller 22, a turbine 23, and a stator 24.

  The torque from the prime mover 101 is input to the front cover 21. The front cover 21 has a disk portion 211 and a cylindrical portion 212. The cylindrical portion 212 extends in the axial direction from the outer peripheral end of the disk portion 211 toward the impeller 22.

  The impeller 22 is fixed to the front cover 21. That is, the torque from the front cover 21 is input to the impeller 22. The impeller 22 has an impeller shell 221, a plurality of impeller blades 222, and an impeller hub 223. The impeller shell 221 is fixed to the front cover 21 by, for example, welding.

  The impeller blade 222 is fixed to an inner surface of the impeller shell 221. The impeller hub 223 is fixed to the inner peripheral end of the impeller shell 221 by welding or the like.

  The turbine 23 is arranged to face the impeller 22. The turbine 23 has a turbine shell 231 and a plurality of turbine blades 232. The turbine blade 232 is fixed to the inner surface of the turbine shell 231 by brazing or the like.

  Stator 24 is configured to rectify hydraulic oil returning from turbine 23 to impeller 22. The stator 24 is rotatable around the rotation axis O. For example, the stator 24 is supported on the fixed shaft 1 via a second one-way clutch 106. The stator 24 is disposed between the impeller 22 and the turbine 23 in the axial direction.

  The stator 24 has a disk-shaped stator carrier 241 and a plurality of stator blades 242 attached to the outer peripheral surface thereof.

[Planetary gear mechanism 3]
The planetary gear mechanism 3 includes a sun gear 31, a plurality of planetary gears 32, a planet carrier 33, and a ring gear. In the first embodiment, the sun gear 31 corresponds to a first gear of the present invention, and the ring gear 34 corresponds to a second gear of the present invention.

  The sun gear 31 is arranged so as not to rotate. Specifically, the sun gear 31 does not rotate around the rotation axis O. For example, the sun gear 31 is fixed to the fixed shaft 1. The sun gear 31 may be formed integrally with the fixed shaft 1.

  Each planetary gear 32 is arranged radially outside the sun gear 31. Each planet gear 32 meshes with the sun gear 31. Each planetary gear 32 is arranged at intervals in the circumferential direction. Each planet gear 32 revolves around the sun gear 31 while rotating.

  The planet carrier 33 rotatably supports each planet gear 32. The planet carrier 33 is disposed so as to be rotatable about a rotation axis O. The planet carrier 33 is configured to output torque to the output shaft 102. For example, the planet carrier 33 is attached to the output shaft 102, and can rotate integrally with the output shaft 102.

  The ring gear 34 is arranged radially outside of each planetary gear 32. The ring gear 34 meshes with each planet gear 32. The ring gear 34 is disposed so as to be rotatable about a rotation axis O. The ring gear 34 is attached to the turbine 23.

[First one-way clutch 105]
The first one-way clutch 105 is arranged between the ring gear 34 and the turbine 23. That is, the ring gear 34 is attached to the turbine 23 via the first one-way clutch 105. The first one-way clutch 105 transmits torque from the turbine 23 to the ring gear 34, while blocking transmission of torque from the ring gear 34 to the turbine 23. For example, when turbine 23 rotates at a higher rotation speed than ring gear 34, first one-way clutch 105 is engaged, and transmits torque from turbine 23 to ring gear 34. On the other hand, when ring gear 34 rotates at a speed higher than that of turbine 23, first one-way clutch 105 idles, and torque from ring gear 34 to turbine 23 is not transmitted.

[First clutch 4]
The first clutch 4 is configured to connect the ring gear 34 to the front cover 21. Specifically, when the first clutch 4 enters the clutch-on state, the ring gear 34 and the front cover 21 are connected. As a result, the ring gear 34 and the front cover 21 rotate integrally. When the first clutch 4 enters the clutch off state, the connection between the ring gear 34 and the front cover 21 is cut off. As a result, the ring gear 34 and the front cover 21 can rotate relative to each other. For example, the first clutch 4 is of a hydraulic type and can be constituted by one or more friction plates. The first clutch 4 is attached to the front cover 21 and, when the clutch is turned on, frictionally engages with the ring gear 34 or a member that rotates integrally with the ring gear 34.

[Second clutch 5]
The second clutch 5 is configured to connect the planet carrier 33 to the front cover 21. Specifically, when the second clutch 5 enters the clutch-on state, the planet carrier 33 and the front cover 21 are connected. As a result, the planet carrier 33 and the front cover 21 rotate integrally. When the second clutch 5 enters the clutch off state, the connection between the planet carrier 33 and the front cover 21 is cut off. As a result, the planet carrier 33 and the front cover 21 can be relatively rotated. For example, the second clutch 5 is of a hydraulic type, and can be composed of one or more friction plates. The second clutch 5 is attached to the front cover 21 and, when the clutch is turned on, frictionally engages with the planet carrier 33 or a member that rotates integrally with the planet carrier 33.

[Operation of Torque Converter 100]
The operation of the torque converter 100 configured as described above will be described.

  First, in the first torque transmission pattern, the first clutch 4 is set to the clutch on state, and the second clutch 5 is set to the clutch off state. As a result, the ring gear 34 rotates integrally with the front cover 21, and the planet carrier 33 can rotate relative to the front cover 21. In the first torque transmission pattern, the torque input from the prime mover 101 to the front cover 21 is output in the order of the ring gear 34 → the planetary gear 32 → the planet carrier 33 → the output shaft 102.

  Thus, in the first torque transmission pattern, the torque from the prime mover 101 is output via the planetary gear mechanism 3 without passing through the torque converter main body 2. That is, the torque from the prime mover 101 is amplified and output only by the planetary gear mechanism 3. The first torque transmission pattern is used, for example, during normal running. Further, in the first torque transmission pattern, first one-way clutch 105 does not transmit torque from ring gear 34 to turbine 23.

  Next, in the second torque transmission pattern, both the first clutch 4 and the second clutch 5 are in the clutch off state. As a result, the ring gear 34 and the planet carrier 33 can rotate relative to the front cover 21. In the second torque transmission pattern, the torque input from the prime mover 101 to the front cover 21 is output in the order of the impeller 22 → turbine 23 → ring gear 34 → planetary gear 32 → planetary carrier 33 → output shaft 102. The first one-way clutch 105 transmits torque from the turbine 23 to the ring gear 34.

  As described above, in the second torque transmission pattern, the torque from the prime mover 101 is output via the inside of the torque converter main body 2 and the planetary gear mechanism 3. That is, the torque from the prime mover 101 is amplified and output by both the torque converter body 2 and the planetary gear mechanism 3. The second torque transmission pattern is used, for example, during high-load running on a slope or the like.

  Next, in the third torque transmission pattern, the first clutch 4 is set to the clutch off state, and the second clutch 5 is set to the clutch on state. As a result, the ring gear 34 can rotate relative to the front cover 21, and the planet carrier 33 rotates integrally with the front cover 21. In the third torque transmission pattern, the torque input from the prime mover 101 to the front cover 21 is output in the order of the planet carrier 33 → the output shaft 102. In the third torque transmission pattern, the first one-way clutch 105 does not transmit torque from the ring gear 34 to the turbine 23.

  Thus, in the third torque transmission pattern, the torque from the prime mover 101 is output without passing through any of the torque converter main body 2 and the planetary gear mechanism 3. That is, the torque from the prime mover 101 is output to the output shaft 102 without being amplified in either the torque converter main body 2 or the planetary gear mechanism 3. The third torque transmission pattern is used, for example, during high-speed running.

Second Embodiment Next, a torque converter according to a second embodiment will be described. Note that, in the following, portions different from the torque converter according to the first embodiment will be mainly described, and the same reference numerals will be given to components that are basically the same as those of the torque converter according to the first embodiment, and will be described repeatedly. Omitted.

  As shown in FIG. 2, in the torque converter 100 according to the second embodiment, the sun gear 31 is arranged so as to be rotatable around the rotation axis O. The sun gear 31 is attached to the turbine 23. That is, in the second embodiment, the sun gear 31 corresponds to the second gear of the present invention, and the ring gear 34 corresponds to the first gear of the present invention.

  The ring gear 34 is arranged so as not to rotate. Specifically, the ring gear 34 does not rotate around the rotation axis O. For example, the ring gear 34 is fixed to the fixed shaft 1. The ring gear 34 may be formed integrally with the fixed shaft 1.

  The first one-way clutch 105 is disposed between the sun gear 31 and the turbine 23. That is, the sun gear 31, that is, the sun gear 31 is attached to the turbine 23 via the first one-way clutch 105. The first one-way clutch 105 transmits torque from the turbine 23 to the sun gear 31 while blocking transmission of torque from the sun gear 31 to the turbine 23. For example, when the turbine 23 rotates at a higher rotation speed than the sun gear 31, the first one-way clutch 105 is engaged, and transmits torque from the turbine 23 to the sun gear 31. On the other hand, when sun gear 31 rotates at a higher rotation speed than turbine 23, first one-way clutch 105 idles, and torque from sun gear 31 to turbine 23 is not transmitted.

  The first clutch 4 is configured to connect the sun gear 31 to the front cover 21. Specifically, when the first clutch 4 enters the clutch-on state, the sun gear 31 and the front cover 21 are connected. As a result, the sun gear 31 and the front cover 21 rotate integrally. When the first clutch 4 enters the clutch off state, the connection between the sun gear 31 and the front cover 21 is cut off. As a result, the sun gear 31 and the front cover 21 can be relatively rotated. For example, the first clutch 4 is of a hydraulic type and can be constituted by one or more friction plates. The first clutch 4 is attached to the front cover 21 and, when the clutch is turned on, frictionally engages the sun gear 31 or a member that rotates integrally with the sun gear 31.

  The operation of the torque converter 100 according to the second embodiment configured as described above will be described.

  First, in the first torque transmission pattern, the first clutch 4 is set to the clutch on state, and the second clutch 5 is set to the clutch off state. As a result, the sun gear 31 rotates integrally with the front cover 21, and the planet carrier 33 can rotate relative to the front cover 21. In the first torque transmission pattern, the torque input from the prime mover 101 to the front cover 21 is output in the order of the sun gear 31 → the planetary gear 32 → the planet carrier 33 → the output shaft 102.

  Thus, in the first torque transmission pattern, the torque from the prime mover 101 is output via the planetary gear mechanism 3 without passing through the torque converter main body 2. That is, the torque from the prime mover 101 is amplified and output only by the planetary gear mechanism 3. The first torque transmission pattern is used, for example, during normal running. Further, in the first torque transmission pattern, first one-way clutch 105 does not transmit torque from sun gear 31 to turbine 23.

  Next, in the second torque transmission pattern, both the first clutch 4 and the second clutch 5 are in the clutch off state. As a result, the sun gear 31 and the planet carrier 33 can rotate relative to the front cover 21. In the second torque transmission pattern, the torque input to the front cover 21 from the prime mover 101 is output in the order of the impeller 22 → turbine 23 → sun gear 31 → planetary gear 32 → planetary carrier 33 → output shaft 102. The first one-way clutch 105 transmits torque from the turbine 23 to the sun gear 31.

Thus, in the second torque transmission pattern, the torque from the prime mover 101 is output via the inside of the torque converter body 2 and the planetary gear mechanism 3. That is, the torque from the prime mover 101 is amplified and output by both the torque converter body 2 and the planetary gear mechanism 3.
The second torque transmission pattern is used, for example, during high-load running on a slope or the like.

  Next, in the third torque transmission pattern, the first clutch 4 is set to the clutch off state, and the second clutch 5 is set to the clutch on state. As a result, the sun gear 31 can rotate relative to the front cover 21, and the planet carrier 33 rotates integrally with the front cover 21. In the third torque transmission pattern, the torque input from the prime mover 101 to the front cover 21 is output in the order of the planet carrier 33 → the output shaft 102. In the third torque transmission pattern, first one-way clutch 105 does not transmit torque from sun gear 31 to turbine 23.

  Thus, in the third torque transmission pattern, the torque from the prime mover 101 is output without passing through any of the torque converter main body 2 and the planetary gear mechanism 3. That is, the torque from the prime mover 101 is output to the output shaft 102 without being amplified in either the torque converter main body 2 or the planetary gear mechanism 3. The third torque transmission pattern is used, for example, during high-speed running.

[Modification]
Although the embodiments of the present invention have been described above, the present invention is not limited to these, and various modifications can be made without departing from the spirit of the present invention.

Modification 1
For example, in each of the above embodiments, the first one-way clutch 105 is installed between the turbine 23 and the ring gear 34 or the sun gear 31, but the installation of the first one-way clutch 105 may be omitted. For example, the ring gear 34 may be directly attached to the turbine 23 in the first embodiment, and the sun gear 31 may be directly attached to the turbine 23 in the second embodiment.

Modification 2
The prime mover 101 may be a gasoline engine, an electric motor, or a combination thereof. When the prime mover 101 is an electric motor, the prime mover 101 can be reversely rotated to perform reverse traveling. During the reverse traveling, for example, the first clutch 4 is set to the clutch on state, and the second clutch 5 is set to the clutch off state. As a result, in the first embodiment, the ring gear 34 rotates integrally with the front cover 21, and the planet carrier 33 can rotate relative to the front cover 21. In the second embodiment, the sun gear 31 rotates integrally with the front cover 21, and the planet carrier 33 can rotate relative to the front cover 21.

  In the torque transmission pattern during the reverse traveling, in the first embodiment, the reverse rotation torque input from the prime mover 101 to the front cover 21 in the order of the ring gear 34 → the planetary gear 32 → the planetary carrier 33 → the output shaft 102. In the second embodiment, the output is performed in the order of sun gear 31 → planetary gear 32 → planetary carrier 33 → output shaft 102. As described above, in the torque transmission pattern during the reverse running, the reverse rotation torque from the prime mover 101 is output via only the planetary gear mechanism 3 without passing through the torque converter main body 2. That is, the reverse rotation torque from the prime mover 101 is amplified and output only by the planetary gear mechanism 3.

Modification 3
In each of the above embodiments, the planet carrier 33 is directly attached to the output shaft 102. However, the present invention is not limited to this, and the planet carrier 33 may be indirectly attached to the output shaft 102.

REFERENCE SIGNS LIST 1 fixed shaft 2 torque converter main body 21 front cover 22 impeller 23 turbine 24 stator 3 planetary gear mechanism 31 sun gear 32 planetary gear 33 planetary carrier 34 ring gear 4 first clutch 5 second clutch 100 torque converter 101 prime mover 102 output shaft 105 first One-way clutch 106 second one-way clutch

Claims (6)

A torque converter that outputs torque from a prime mover to an output shaft,
A torque converter body having a front cover, an impeller, a turbine, and a stator to which torque is input from a prime mover,
A sun gear, a planetary gear, a planetary gear mechanism having a planetary carrier that outputs torque to the output shaft, and a ring gear;
A first clutch,
A second clutch,
With
A first gear, which is one of the sun gear and the ring gear, is arranged so as not to rotate,
A second gear, which is the other of the sun gear and the ring gear, is attached to the turbine,
The first clutch connects the second gear to the front cover,
The second clutch connects a planet carrier to the front cover;
Torque converter.
A first one-way clutch disposed between the turbine and the second gear;
The torque converter according to claim 1.
Further equipped with a fixed shaft,
The second gear is fixed to the fixed shaft,
The torque converter according to claim 1.
Further comprising a second one-way clutch disposed between the stator and the fixed shaft,
The torque converter according to claim 3.
The first gear is a sun gear,
The second gear is a ring gear,
The torque converter according to claim 1.
The first gear is a ring gear,
The second gear is a sun gear,
The torque converter according to claim 1.

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