CN114321317A - Quick and efficient hydraulic torque converter design method - Google Patents
Quick and efficient hydraulic torque converter design method Download PDFInfo
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- CN114321317A CN114321317A CN202111652316.5A CN202111652316A CN114321317A CN 114321317 A CN114321317 A CN 114321317A CN 202111652316 A CN202111652316 A CN 202111652316A CN 114321317 A CN114321317 A CN 114321317A
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Abstract
The invention relates to the technical field of hydraulic torque converters and discloses a quick and efficient hydraulic torque converter design method. When the quick and efficient hydraulic torque converter design method is used, the semi-annular slave sealing ring and the butt-joint groove formed in the master sealing ring can be tightly attached to each other under the action of elastic force through the compression spring, the inner wall of the seal ring with thinned abrasion can be automatically compensated, the inner walls of the master sealing ring and the slave sealing ring can be always in extrusion contact with the outer wall of the driven shaft, and the problems that liquid leakage occurs due to the fact that the contact gap between the inner ring surface of the oil seal and the driven shaft is increased, and the sealing effect is poor are solved.
Description
Technical Field
The invention relates to the technical field of hydraulic torque converters, in particular to a quick and efficient hydraulic torque converter design method.
Background
A torque converter is provided between an engine and a transmission of an automatically shifting motor vehicle. A torque converter is used to transmit driving power of an engine to a transmission by using fluid (usually oil) and plays a role of transmitting torque and converting torque, and is also called one of "a torque converter", "a turbine torque converter", "a hydrodynamic torque converter", and a hydrodynamic transmission member.
When the common hydraulic torque converter is used, the common hydraulic torque converter is generally composed of a pump wheel, a turbine wheel and a guide wheel, wherein the pump wheel is connected with a driving shaft and can convert mechanical energy input by the driving shaft into kinetic energy of liquid and a pressure head to be used by the turbine wheel for acting, the turbine wheel is connected with a driven shaft and can output the kinetic energy of the liquid and the energy contained by the pressure head from the driven shaft, an oil seal is required to be arranged at the joint of the driven shaft and a shell in order to ensure the normal operation of equipment, thereby avoiding the oil leakage in the hydraulic torque converter to damage the equipment, but the friction and the abrasion are generated between the driven shaft and the inner ring surface of the oil seal when the driven shaft rotates for a long time to separate the rubber material of the inner ring of the oil seal, therefore, the problems of liquid leakage and poor sealing effect caused by the increase of the contact gap between the inner ring surface of the oil seal and the driven shaft are caused, and the working requirement of the hydraulic torque converter cannot be met, so that the design method of the hydraulic torque converter with high speed and high efficiency is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a quick and efficient hydraulic torque converter design method, which solves the technical problems provided by the background technology.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a design method of a quick and efficient hydraulic torque converter comprises a pump shell and an installation shell, wherein the outer wall of the pump shell is in sealed connection with the outer wall of the installation shell through bolts, a volute is arranged on the left side of an inner cavity of the installation shell, an installation rod is welded in the middle of the left side wall of the volute, a guide wheel is movably sleeved on the left side of the outer wall of the installation rod, a driven shaft is welded in the middle of the right side wall of the volute, an installation channel is arranged in the middle of the right side wall of the installation shell, an oil-sealed shell is fixedly installed in the inner cavity of the installation channel, the right end of the driven shaft penetrates through the outer cavity of the oil-sealed shell, a semi-annular main sealing ring is slidably arranged at the top of the inner cavity of the oil-sealed shell, a semi-annular secondary sealing ring is slidably arranged at the bottom of the inner cavity of the oil-sealed shell, two butt-joint grooves are symmetrically formed in the inner ring, and the two ends of the outer wall of the secondary sealing ring respectively extend into the inner cavities of the corresponding butt-joint grooves, the inner wall of main seal circle and follow the sealing washer all with the outer wall swing joint of driven shaft, the inner chamber front and back symmetry of oil-sealed shell is provided with two curved stoppers, the inside wall of stopper and the lateral wall swing joint of main seal circle, the slide bar has all been welded to main seal circle and the outer wall from the sealing washer, the one end of slide bar and the inner wall sliding connection of oil-sealed shell, the outer wall slip cap of slide bar is equipped with compression spring, compression spring's both ends respectively with the outer wall of slide bar and the inner wall fixed connection of oil-sealed shell.
Preferably, there are two threaded rods at the inner chamber front and back of oil-sealed shell through bearing symmetry movable mounting, the external screw thread of threaded rod and the outer wall threaded connection of the stopper that corresponds, annular cavity has been seted up on the left side of oil-sealed shell, the sealed inner chamber that extends to the cavity of one end of threaded rod.
Preferably, the sliding tray has been seted up to the inner chamber bottom surface of cavity, movable mounting has annular rack in the inner chamber of sliding tray, the one end face welding of threaded rod has the straight-teeth gear, the flank of tooth of straight-teeth gear and the flank of tooth meshing of annular rack, the fixed cover in outer lane of annular rack is equipped with the worm wheel, the inner wall of cavity has the worm through bearing movable mounting, the flank of tooth meshing of worm and worm wheel, the one end of worm is sealed to extend to outside the inner chamber of cavity.
Preferably, the middle part of the right side wall of the oil seal casing is provided with a groove, an impeller is arranged in an inner cavity of the groove, the middle part of the outer wall of the impeller is provided with a connecting hole, and the outer wall of the driven shaft is fixedly connected with the inner wall of the connecting hole.
Preferably, two first heat dissipation channels are symmetrically arranged on the right side of the inner cavity of the oil-sealed shell, the inner cavity of each first heat dissipation channel is communicated with the inner cavity of the corresponding groove, a second heat dissipation channel is arranged on the right side of the upper surface of the oil-sealed shell, the inner cavity of each second heat dissipation channel is communicated with the inner cavity of the corresponding groove, a communication pipe is fixedly arranged on the right side of the upper surface of the oil-sealed shell, and the inner cavity of the communication pipe is communicated with the inner cavity of each second heat dissipation channel.
Preferably, the outer walls of the pump shell and the mounting shell are respectively provided with a spiral passage, the inner cavities of the two spiral passages are hermetically communicated, the upper end of the communicating pipe is hermetically and fixedly connected with the outer wall of the mounting shell, and the inner cavity of the communicating pipe is communicated with the inner cavity of the spiral passage.
Preferably, the equal equidistance of the inner wall of pump case and spiral case is provided with a set of guide vane, guide vane sets up the gradient and is ten to forty-five degrees, the outer lane equidistance of guide pulley is provided with a set of vortex blade, vortex blade sets up the gradient and is sixty to ninety degrees.
(III) advantageous effects
Compared with the prior art, the invention provides a quick and efficient hydraulic torque converter design method, which has the following beneficial effects:
1. according to the design method of the hydraulic torque converter, the compression spring is arranged, so that the semi-annular secondary sealing ring can be tightly attached to the butt joint groove formed in the primary sealing ring under the action of elastic force, the inner wall of the sealing ring with thinned abrasion can be automatically compensated, the inner walls of the primary sealing ring and the secondary sealing ring can be always in extrusion contact with the outer wall of the driven shaft, friction and abrasion are generated between the driven shaft and the inner ring surface of the oil seal when the driven shaft rotates for a long time, so that the rubber material of the inner ring of the oil seal is separated, and the problems of liquid leakage and poor sealing effect caused by the increase of the contact gap between the inner ring surface of the oil seal and the driven shaft are solved.
2. According to the design method of the quick and efficient hydraulic torque converter, the worm is arranged to drive the worm wheel to rotate, the transmission threaded rod rotates to further drive the limiting block to move to extrude and limit the main sealing ring, the position of the limiting block can be adjusted according to the wear-eliminating thickness of the main sealing ring, the shape of the main sealing ring after movement is limited, deformation of rubber elasticity of the transmission sealing ring is avoided, and the problem of poor laminating effect is solved.
3. This high efficiency torque converter design method, it rotates to drive the impeller through setting up the driven shaft drive belt, the impeller drives the air flow, can dispel the heat and cool down with the heat that produces from the sealing washer friction with the main seal circle in the oil seal shell through first heat dissipation channel, make the piece that the sealed pad attrition produced in the oil seal shell inner chamber discharge simultaneously under the air flow, through setting up spiral channel, the impeller drives the air flow and can make the air in the spiral channel take place to flow through second heat dissipation channel and cool down the heat dissipation to equipment, the problem that the heat that the long-time motion of the inside fluid of equipment and inside each subassembly friction and collision produced of equipment is too high leads to each subassembly to take place the heat altered shape has been avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;
FIG. 3 is a side cross-sectional structural view of the primary seal ring and the secondary seal ring of the present invention;
fig. 4 is a side cross-sectional structural view of a spur gear, an annular rack, and a chamber of the present invention.
In the figure: 1. a pump housing; 2. mounting a shell; 3. a volute; 4. mounting a rod; 5. a guide wheel; 6. a driven shaft; 7. installing a channel; 8. an oil-sealed enclosure; 9. a primary seal ring; 10. a secondary seal ring; 11. a butt joint groove; 12. a limiting block; 13. a slide bar; 14. a compression spring; 15. a threaded rod; 16. an annular rack; 17. a spur gear; 18. a worm gear; 19. a worm; 20. an impeller; 21. a communicating pipe; 22. a spiral channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme, in particular to a quick and efficient hydraulic torque converter design method which comprises a pump shell 1, an installation shell 2, a volute 3, an installation rod 4, a guide wheel 5, a driven shaft 6, an installation channel 7, an oil seal shell 8, a main seal ring 9, a secondary seal ring 10, a butt joint groove 11, a limiting block 12, a sliding rod 13, a compression spring 14, a threaded rod 15, an annular rack 16, a straight gear 17, a worm gear 18, a worm 19, an impeller 20, a communicating pipe 21 and a spiral channel 22, referring to the figure 1, the outer wall of the pump shell 1 is hermetically connected with the outer wall of the installation shell 2 through bolts, the volute 3 is arranged on the left side of an inner cavity of the installation shell 2, the installation rod 4 is welded in the middle of the left side wall of the volute 3, the guide wheel 5 is movably sleeved on the left side of the outer wall of the installation rod 4, a group of guide vanes are equidistantly arranged on the inner walls of the pump shell 1 and the volute 3, and fluid in the pump shell 1 and the pump shell 3 are driven to move under the action of centrifugal force generated by the rotation of the guide vanes, the inclination of the guide vanes is ten to forty-five degrees, a group of turbulence vanes are equidistantly arranged on the outer ring of the guide wheel 5, the motion path and the angle of fluid can be changed by the turbulence vanes, the fluid can rapidly drive the volute 3 to rotate through another group of guide vanes, the inclination of the turbulence vanes is sixty to ninety degrees, the driven shaft 6 is welded in the middle of the right side wall of the volute 3, the mounting channel 7 is arranged in the middle of the right side wall of the mounting shell 2, please refer to figure 2, the oil enclosure 8 is fixedly arranged in the inner cavity of the mounting channel 7, the right end of the driven shaft 6 penetrates out of the inner cavity of the oil enclosure 8, the middle of the right side wall of the oil enclosure 8 is provided with a groove, the impeller 20 is arranged in the inner cavity of the groove, the middle of the outer wall of the impeller 20 is provided with a connecting hole, the outer wall of the driven shaft 6 is fixedly connected with the inner wall of the connecting hole, and the right side of the inner cavity of the oil enclosure 8 is symmetrically provided with two first heat dissipation channels, the inner cavity of the first heat dissipation channel is communicated with the inner cavity of the groove, heat generated by friction of the driven shaft 6, the main sealing ring 9 and the auxiliary sealing ring 10 in the oil seal shell 8 can be dissipated and cooled through the first heat dissipation channel, meanwhile, chips generated by abrasion elimination of sealing gaskets in the inner cavity of the oil seal shell 8 are discharged under the flowing of air, the right side of the upper surface of the oil seal shell 8 is provided with a second heat dissipation channel, the inner cavity of the second heat dissipation channel is communicated with the inner cavity of the groove, the cooling and heat dissipation of equipment can be realized, the problem that thermal deformation of each component is caused by overhigh heat generated by long-time movement of fluid in the equipment and friction collision of each component in the equipment is avoided, the right side of the upper surface of the oil seal shell 8 is fixedly provided with a communicating pipe 21, the inner cavity of the communicating pipe 21 is communicated with the inner cavity of the second heat dissipation channel, the outer walls of the pump shell 1 and the mounting shell 2 are both provided with spiral channels 22, and the inner cavities of the two spiral channels 22 are communicated in a sealing manner, the upper end of the communicating pipe 21 is fixedly connected with the outer wall of the mounting shell 2 in a sealing manner, the inner cavity of the communicating pipe 21 is communicated with the inner cavity of the spiral channel 22, please refer to fig. 3, a semi-annular main seal ring 9 is slidably arranged at the top of the inner cavity of the oil-sealed shell 8, a semi-annular auxiliary seal ring 10 is slidably arranged at the bottom of the inner cavity of the oil-sealed shell 8, two butt-joint grooves 11 are symmetrically formed in the inner ring of the main seal ring 9, the two ends of the outer wall of the seal ring 10 extend into the inner cavities of the corresponding butt-joint grooves 11 respectively, the inner walls of the main seal ring 9 and the auxiliary seal ring 10 are in movable contact with the outer wall of the driven shaft 6, the shape of the auxiliary seal ring 10 after moving can be limited, so that the inner wall of the auxiliary seal ring 10 is tightly attached to the outer wall of the driven shaft 6, two arc-shaped limiting blocks 12 are symmetrically arranged at the front and back part of the inner cavity of the oil-sealed shell 8, and two threaded rods 15 are symmetrically and movably arranged at the front and back part of the inner cavity of the oil-sealed shell 8 through bearings, the external thread of the threaded rod 15 is in threaded connection with the outer wall of the corresponding limit block 12, sealing compensation can be automatically performed after the sealing performance is poor after the inner ring of the sealing gasket is worn away, the service life of the sealing gasket is prolonged, resources are saved, and frequent replacement of the sealing ring is avoided, please refer to fig. 4, an annular cavity is formed in the left side of the oil seal casing 8, one end of the threaded rod 15 extends into the inner cavity of the cavity in a sealing manner, a sliding groove is formed in the bottom surface of the inner cavity of the cavity, an annular rack 16 is movably installed in the inner cavity of the sliding groove, a straight gear 17 is welded on the end face of one end of the threaded rod 15, the tooth face of the straight gear 17 is meshed with the tooth face of the annular rack 16, a worm wheel 18 is fixedly sleeved on the outer ring of the annular rack 16, a worm 19 is movably installed on the inner wall of the cavity through a bearing, the worm 19 is meshed with the tooth face of the worm wheel 18, one end of the worm 19 extends out of the inner cavity in a sealing manner, and the inner side wall of the limit block 12 is movably contacted with the outer side wall of the main sealing ring 9, the outer walls of the main sealing ring 9 and the auxiliary sealing ring 10 are respectively welded with a sliding rod 13, one end of the sliding rod 13 is connected with the inner wall of the oil seal casing 8 in a sliding mode, the outer wall of the sliding rod 13 is sleeved with a compression spring 14 in a sliding mode, and two ends of the compression spring 14 are fixedly connected with the outer wall of the sliding rod 13 and the inner wall of the oil seal casing 8 respectively.
The working principle of the device is as follows: firstly, a pump shell 1 and a volute 3 are arranged oppositely in the axial direction, the pump shell 1 and a mounting shell 2 jointly surround and define a circular circle, the pump shell 1 and the mounting shell 2 rotate together, the pump shell 1 rotates to drive guide vanes arranged on the inner wall of the pump shell to move, fluid in the pump shell 1 and the volute 3 is driven to move under the action of centrifugal force generated by the rotation of the guide vanes, the fluid drives a guide wheel 5 to move, the movement path and the angle of the fluid can be changed through turbulence vanes arranged on the guide wheel 5, the fluid can more rapidly drive the volute 3 to rotate through another group of guide vanes, the volute 3 drives a driven shaft 6 to rotate, the kinetic energy of the fluid and the energy contained by a pressure head can be output by the driven shaft 6, when the driven shaft 6 rotates, the outer wall of the driven shaft is in rotational contact with the inner walls of a main sealing ring 9 and a secondary sealing ring 10 to generate abrasion elimination, so that the thicknesses of the main sealing ring 9 and the secondary sealing ring 10 are reduced, and the main sealing ring 9 and the secondary sealing ring 10 are pushed to move under the action of a compression spring 14, the shape of the slave sealing ring 10 after movement can be limited under the action of a butt joint groove 11 formed in the main sealing ring 9, so that the inner wall of the slave sealing ring 10 is tightly attached to the outer wall of the driven shaft 6; the shape of the moving main sealing ring 9 can be limited under the action of the limiting block 12, so that the inner wall of the butt joint groove 11 formed in the main sealing ring 9 is tightly attached to the outer wall of the auxiliary sealing ring 10, meanwhile, the inner wall of the main sealing ring 9 is tightly attached to the outer wall of the driven shaft 6, the sealing compensation can be automatically performed after the sealing variation is generated after the inner ring of the sealing gasket is worn away, the service life of the sealing gasket is prolonged, resources are saved, the operation of frequently replacing the sealing ring is avoided, the worm 19 is rotated to drive the worm wheel 18 to rotate, the worm wheel 18 drives the annular rack 16 to rotate, the annular rack 16 drives the straight gear 17 to rotate, the straight gear 17 drives the threaded rod 15 to rotate, the threaded rod 15 drives the limiting block 12 to move, the spacing adjustment of the limiting block 12 can be performed according to the wear-away thickness of the main sealing ring 9 and the auxiliary sealing ring 10, and the attaching stability of the main sealing ring 9 and the auxiliary sealing ring 10 is improved, simultaneously driven shaft 6 rotates and drives impeller 20 to rotate, impeller 20 can drive the air flow, can dispel the heat and cool down to driven shaft 6 and main seal 9 in the oil capsule 8 and the heat that produces from the friction of sealing washer 10 through first heat dissipation channel, make the piece that the sealed pad mill-off produced in the inner chamber of oil capsule 8 discharge under the air flow simultaneously, through spiral passage 22 and the communicating pipe 21 that set up, impeller 20 drives the air flow and makes the air in spiral passage 22 take place to flow and can cool down the heat dissipation to equipment through second heat dissipation channel, the problem that the heat that the long-time motion of the inside fluid of equipment and inside each subassembly friction impact produced of equipment leads to each subassembly to take place the heat altered shape has been avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A design method of a quick and efficient hydraulic torque converter comprises a pump shell (1) and a mounting shell (2), and is characterized in that: the outer wall of the pump case (1) is connected with the outer wall of the installation case (2) in a sealing mode through bolts, a volute (3) is arranged on the left side of an inner cavity of the installation case (2), an installation rod (4) is welded in the middle of the left side wall of the volute (3), a guide wheel (5) is movably sleeved on the left side of the outer wall of the installation rod (4), a driven shaft (6) is welded in the middle of the right side wall of the volute (3), an installation channel (7) is arranged in the middle of the right side wall of the installation case (2), an oil-sealed casing (8) is fixedly installed in the inner cavity of the installation channel (7), the right end of the driven shaft (6) penetrates through the outside of the inner cavity of the oil-sealed casing (8), a semi-annular main sealing ring (9) is arranged at the top of the inner cavity of the oil-sealed casing (8) in a sliding mode, a semi-annular auxiliary sealing ring (10) is arranged at the bottom of the inner cavity of the oil-sealed casing (8), two butt joint grooves (11) are symmetrically formed in the inner ring of the main sealing ring (9), extend to the inner chamber of the butt joint groove (11) that corresponds respectively from the outer wall both ends of sealing washer (10), main seal circle (9) and the inner wall of following sealing washer (10) all with the outer wall swing joint of driven shaft (6), the inner chamber anteroposterior symmetry of oil-sealed shell (8) is provided with two curved stopper (12), the inside wall of stopper (12) and the lateral wall swing joint of main seal circle (9), slide bar (13) have all been welded with the outer wall of sealing washer (10) to main seal circle (9) and follow, the one end of slide bar (13) and the inner wall sliding connection of oil-sealed shell (8), the outer wall slip cover of slide bar (13) is equipped with compression spring (14), the both ends of compression spring (14) respectively with the outer wall of slide bar (13) and the inner wall fixed connection of oil-sealed shell (8).
2. A method of designing a fast and efficient torque converter as defined in claim 1 wherein: the inner chamber front and back portion of oil capsule shell (8) has two threaded rods (15) through bearing symmetry movable mounting, the outer wall threaded connection of the external screw thread of threaded rod (15) and the stopper (12) that corresponds, annular cavity has been seted up in the left side of oil capsule shell (8), the sealed inner chamber that extends to the cavity of one end of threaded rod (15).
3. A method of designing a fast and efficient torque converter as defined in claim 2 wherein: the sliding tray has been seted up to the inner chamber bottom surface of cavity, movable mounting has annular rack (16) in the inner chamber of sliding tray, the one end face welding of threaded rod (15) has straight-teeth gear (17), the flank of tooth of straight-teeth gear (17) and the flank of tooth meshing of annular rack (16), the fixed cover in outer lane of annular rack (16) is equipped with worm wheel (18), the inner wall of cavity has worm (19) through bearing movable mounting, the flank of tooth meshing of worm (19) and worm wheel (18), the one end of worm (19) is sealed to be extended outside the inner chamber of cavity.
4. A method of designing a fast and efficient torque converter as defined in claim 1 wherein: the middle part of the right side wall of the oil seal shell (8) is provided with a groove, an impeller (20) is arranged in an inner cavity of the groove, the middle part of the outer wall of the impeller (20) is provided with a connecting hole, and the outer wall of the driven shaft (6) is fixedly connected with the inner wall of the connecting hole.
5. A method of designing a fast and efficient torque converter as defined in claim 4 wherein: two first heat dissipation channels have been seted up to the inner chamber right side symmetry of oil capsule (8), the inner chamber of first heat dissipation channel and the inner chamber intercommunication of recess, the second heat dissipation channel has been seted up on the upper surface right side of oil capsule (8), the inner chamber and the inner chamber intercommunication of recess of second heat dissipation channel, the upper surface right side fixed mounting of oil capsule (8) has communicating pipe (21), the inner chamber and the inner chamber intercommunication of second heat dissipation channel of communicating pipe (21).
6. A method of designing a fast and efficient torque converter as defined in claim 5 wherein: spiral passages (22) are formed in the outer walls of the pump shell (1) and the mounting shell (2), the inner cavities of the spiral passages (22) are communicated in a sealing mode, the upper end of the communicating pipe (21) is fixedly connected with the outer wall of the mounting shell (2) in a sealing mode, and the inner cavity of the communicating pipe (21) is communicated with the inner cavity of the spiral passage (22).
7. A method of designing a fast and efficient torque converter as defined in claim 1 wherein: the equal equidistance of inner wall of pump case (1) and spiral case (3) is provided with a set of guide vane, guide vane sets up the gradient and is ten to forty-five degrees, the outer lane equidistance of guide pulley (5) is provided with a set of vortex blade, vortex blade sets up the gradient and is sixty to ninety degrees.
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CN202111652316.5A CN114321317A (en) | 2021-12-30 | 2021-12-30 | Quick and efficient hydraulic torque converter design method |
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CN202111652316.5A CN114321317A (en) | 2021-12-30 | 2021-12-30 | Quick and efficient hydraulic torque converter design method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116816718A (en) * | 2023-05-19 | 2023-09-29 | 华能国际电力股份有限公司上海石洞口第二电厂 | Transmission shaft oil baffle device |
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2021
- 2021-12-30 CN CN202111652316.5A patent/CN114321317A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116816718A (en) * | 2023-05-19 | 2023-09-29 | 华能国际电力股份有限公司上海石洞口第二电厂 | Transmission shaft oil baffle device |
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Application publication date: 20220412 |