Twin clutch device

Abstract

A twin clutch device is disclosed. The twin clutch device, according to one embodiment of the present invention, improves the path in which churning oil flows through a churning chamber unit and an oil seal toward an air breather.

Description

Twin clutch device

[0001] The present invention relates to a twin clutch device that minimizes movement of churning oil to an air breather in a twin clutch device.

[0002]

[0003] Typically, a vehicle has two or more driving wheels, and the power provided from a power source such as an engine is appropriately distributed to each driving wheel to improve the vehicle's driving performance.

[0004] A 4WD (4 Wheel Drive) vehicle provides power from the power source to all four wheels, allowing all four wheels to be driven as driving wheels, thereby improving vehicle driving performance on off-road or rough terrain.

[0005] However, in terms of fuel efficiency, 2WD (2 Wheel Drive) vehicles are more advantageous, and changing the 2WD and 4WD status depending on the driving conditions of the vehicle is more advantageous in improving fuel efficiency.

[0006] Meanwhile, even in a 2WD situation, if torque vectoring is possible by actively distributing torque between the left and right driving wheels, the vehicle's driving stability and power performance can be improved.

[0007] In order to vary the 2WD and 4WD states as described above, the torque provided from the power source must be able to be appropriately distributed between the front and rear wheels, and in order to actively vary the torque of the left and right driving wheels, the torque provided from the power source must be able to be appropriately distributed between the left and right driving wheels.

[0008] For example, in the case of a drum-integrated twin clutch system, the drum is configured as an integral part to transmit torque generated from the power source (drive gear of the reducer) to the left and right clutch packs.

[0009] For example, eTVTC (twin clutch system) products are installed in high-performance vehicles and must adopt a structure that is robust against leakage when the vehicle undergoes rapid acceleration, deceleration, and turning. Looking at the leakage structure of existing eTVTC (twin clutch system) products, the conduit to the air breather that can release air was connected to the internal drum churning section.

[0010] In this case, when the vehicle turns left or right or is driven at high speed, the drum assembly rotates, causing churning oil to rise upward due to drum churning, which causes a problem of leaking to the outside through the air breather.

[0011] In this case, traces of churning oil leakage occurred on the outside of the components that make up the twin clutch system, which caused a problem of lowering the appearance quality and causing customer dissatisfaction.

[0012] In addition, if a twin clutch system continuously leaks, repairs or replacement of specific parts are required, which results in unnecessary inspection costs and maintenance time, so countermeasures are needed.

[0013]

[0014] Embodiments of the present invention aim to provide a twin clutch device that minimizes the movement of churning oil to the air breather by connecting a separate pipe to the air breather at a non-churning portion location to minimize the movement of churning oil flowing into the air breather.

[0015]

[0016] A twin clutch according to one embodiment of the present invention comprises: a clutch case (100) equipped with an air breather (10); a clutch portion (300) disposed inside the clutch case (100); a drum unit (400) for churning churning oil inside the clutch case (100); a shaft (500) coupled with the drum unit (400); a churning chamber portion (110) formed inside the clutch case (100) with a predetermined size along a path along which churning oil churned by the drum unit (400) moves toward the air breather (10); and an oil seal (200) coupled to the churning chamber portion (110).

[0017] The churning chamber portion (110) is formed in a ring shape with a predetermined width toward the radial outer side of the shaft (500), and is formed at the front and rear of the drum unit (400), respectively.

[0018] A recovery hole (112) for draining the churning oil is formed in the churning chamber (110).

[0019] The above recovery hole (112) is positioned at the inner lowest position of the churning chamber (110) based on the shaft (500).

[0020] The above recovery hole (112) is positioned on the upper side of the churning chamber (110) based on the shaft (500).

[0021] The above churning chamber (110) is provided with a baffle (114) to limit the movement of churning oil from the lower inner side to the upper side.

[0022] The above bulkhead portion (114) is arranged in multiple numbers adjacent to each other on the upper side based on the shaft (500).

[0023] The above bulkheads (114) are arranged in multiple numbers spaced apart from each other at a first inclination angle.

[0024] In the clutch case (100), a leakage conduit (120) is formed through which the churning oil moves after passing through the bulkhead (114) on the upper side of the churning chamber (110).

[0025] The above leakage conduit (120) includes a first leakage conduit (122) formed on the left side of the clutch case (100) based on the longitudinal cross-section of the clutch case (100); and a second leakage conduit (124) formed on the right side of the clutch case (100).

[0026] In the clutch case (100), a churning oil recovery pipe (130) is formed that is connected to both ends of the leakage pipe (120) to move the excess churning oil that is not recovered from the leakage pipe (120).

[0027] The first leakage pipe (122) and the second leakage pipe (124) extend so that their inner upper surfaces are inclined toward the churning oil recovery pipe (130).

[0028] The clutch case (100) is provided with an auxiliary chamber portion (150) formed with a predetermined size on the upper side of the leakage pipe (120); an auxiliary bulkhead (152) that partitions the leakage pipe (120) and the auxiliary chamber portion (150) from each other; and an inlet hole (151) that communicates between the leakage pipe (120) and the auxiliary chamber portion (150).

[0029] The above inflow hole (151) is formed at the center of the above leakage pipe (120) or at a location spaced to one side from the center.

[0030] An oil recovery hole (153) is formed in the auxiliary chamber section (150) to allow the churning oil introduced through the inlet hole (151) to be re-moved to the leakage pipe (120).

[0031] The above auxiliary bulkhead (152) extends from the left and right sides of the inner bottom surface toward the inlet hole (151) based on the longitudinal cross-section of the clutch case (100).

[0032] In the clutch case (100), an air breather (10) is coupled to one extended end of the auxiliary chamber part (150), and the inner diameter of the auxiliary chamber part (150) decreases toward the position where the air breather (10) is installed.

[0033]

[0034] A twin clutch device according to another embodiment of the present invention comprises: a clutch case (100) equipped with an air breather (10); a clutch portion (300) disposed inside the clutch case (100); a drum unit (400) for churning churning oil inside the clutch case (100); a shaft (500) coupled with the drum unit (400); a churning chamber portion (110) formed inside the clutch case (100) with a predetermined size along a path along which churning oil churned by the drum unit (400) moves toward the air breather (10); an oil seal (200) coupled to the churning chamber portion (110); and a partition portion (114) for restricting movement of churning oil from the lower inner side to the upper side is provided in the churning chamber portion (110).

[0035] In the above-mentioned bulkhead section (114), a rounded direction change section (114a) is formed inward to induce a path for churning oil to drain downward in the direction of gravity.

[0036] The above bulkhead portion (114) is arranged in multiple numbers adjacent to each other on the upper side based on the shaft (500).

[0037] The above bulkheads (114) are arranged in multiple numbers spaced apart from each other at a first inclination angle.

[0038] In the clutch case (100), a leakage conduit (120) is formed through which the churning oil moves after passing through the bulkhead (114) on the upper side of the churning chamber (110).

[0039] The above leakage conduit (120) includes a first leakage conduit (122) formed on the left side of the clutch case (100) based on the longitudinal cross-section of the clutch case (100); and a second leakage conduit (124) formed on the right side of the clutch case (100).

[0040] In the clutch case (100), a churning oil recovery pipe (130) is formed that is connected to both ends of the leakage pipe (120) to move the excess churning oil that is not recovered from the leakage pipe (120).

[0041] The first leakage pipe (122) and the second leakage pipe (124) extend so that their inner upper surfaces are inclined toward the churning oil recovery pipe (130).

[0042] The clutch case (100) is provided with an auxiliary chamber portion (150) formed with a predetermined size on the upper side of the leakage pipe (120); an auxiliary bulkhead (152) that partitions the leakage pipe (120) and the auxiliary chamber portion (150) from each other; and an inlet hole (151) that communicates between the leakage pipe (120) and the auxiliary chamber portion (150).

[0043] An oil recovery hole (153) is formed in the auxiliary chamber section (150) to allow the churning oil introduced through the inlet hole (151) to be re-moved to the leakage pipe (120).

[0044] The above auxiliary bulkhead (152) extends from the left and right sides of the inner bottom surface toward the inlet hole (151) based on the longitudinal cross-section of the clutch case (100).

[0045] In the clutch case (100), an air breather (10) is coupled to one extended end of the auxiliary chamber part (150), and the inner diameter of the auxiliary chamber part (150) decreases toward the position where the air breather (10) is installed.

[0046] The above leakage pipe (120) and the auxiliary chamber part (150) are formed with different volumes.

[0047]

[0048] Embodiments of the present invention can minimize movement toward the air breather by considering the movement path of the churning oil.

[0049] Embodiments of the present invention can perform recovery of churning oil by considering the recovery and movement path of churning oil, thereby improving recovery performance.

[0050] Embodiments of the present invention can prevent leakage of churning oil to the outside of an air breather, thereby improving the appearance quality.

[0051]

[0052] Fig. 1 is a longitudinal cross-sectional view of a twin clutch according to the present embodiment.

[0053] Fig. 2 is a longitudinal cross-sectional view showing a churning chamber and an oil seal according to the present embodiment.

[0054] Fig. 3 is a longitudinal cross-sectional view showing the movement state of churning oil in the churning chamber according to the present embodiment.

[0055] Fig. 4 is an outer side view of the churning chamber according to the present embodiment.

[0056] Fig. 5 is a longitudinal cross-sectional view showing the path through which churning oil moves through a leakage conduit according to the present embodiment.

[0057] Fig. 6 is a longitudinal cross-sectional view of a clutch case according to the present embodiment.

[0058] Figures 7 and 8 are longitudinal cross-sectional views showing a state in which churning oil moves through the first and second leakage pipes according to the present embodiment.

[0059] Figure 9 is a longitudinal cross-sectional view showing a bulkhead and a direction changing portion according to another embodiment of the present invention.

[0060]

[0061] The advantages and features of the present disclosure, and methods for achieving them, will become clearer with reference to the embodiments described below in detail with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but may be implemented in various different forms. These embodiments are provided solely to ensure that the disclosure is complete and to fully inform those skilled in the art of the scope of the disclosure, and the present disclosure is defined solely by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0062] When one component is referred to as being "connected to" or "coupled to" another component, it includes both cases where it is directly connected or coupled to the other component, or where there is another component intervening therebetween. Conversely, when one component is referred to as being "directly connected to" or "directly coupled to" another component, it indicates that there is no other component intervening therebetween. "And / or" includes each and any combination of one or more of the mentioned items.

[0063] The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the present disclosure. As used herein, the singular includes the plural unless the context clearly dictates otherwise. As used herein, the terms "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, operations, and / or elements.

[0064] Although terms like "first," "second," etc. are used to describe various components, these components are not limited by these terms. These terms are used only to distinguish one component from another.

[0065]

[0066] A twin clutch according to an embodiment of the present invention will be described with reference to the drawings. The attached Fig. 1 is a longitudinal cross-sectional view of the twin clutch according to the embodiment, Fig. 2 is a longitudinal cross-sectional view illustrating a churning chamber and an oil seal according to the embodiment, Fig. 3 is a longitudinal cross-sectional view illustrating the movement state of churning oil in the churning chamber according to the embodiment, and Fig. 4 is an outer side view of the churning chamber according to the embodiment.

[0067]

[0068] Referring to the attached drawings 1 to 4, a twin clutch according to the present embodiment includes a clutch case (100) equipped with an air breather (10) (see drawings 6 to 7), a clutch portion (300) disposed inside the clutch case (100), a drum unit (400) for churning churning oil inside the clutch case (100), a shaft (500) coupled with the drum unit (400), a churning chamber portion (110) formed inside the clutch case (100) with a predetermined size along a path along which the churning oil churned by the drum unit (400) moves toward the air breather (10), and an oil seal (200) coupled to the churning chamber portion (110).

[0069] The clutch case (100) above is provided with a shaft (500) on the inside, and a drum unit (400) is coupled to the outside of the shaft (500). As the drum unit (400) rotates together with the shaft (500), oil is churned outward in the radial direction of the shaft (500).

[0070] In the clutch case (100), when the shaft (500) rotates, churning oil churned by the drum unit (400) moves from position a to position b in the drawing to position c.

[0071] A fine gap is formed between the shaft (500) and the clutch case (100) to allow churning oil to move, and moves toward positions a to c along the path indicated by the arrow.

[0072] In this embodiment, an oil seal (200) is provided in the churning chamber (110) to minimize the phenomenon of churning oil moving to the location where the air breather (10) is installed and to reduce churning oil leaking to the outside through the air breather (10).

[0073] The above churning oil is provided with an oil seal (200) so that it moves with a minimum gap with the shaft (500) located in the clutch case (100), so that the amount of churning oil moved to the oil seal (200) can be minimized. The above gap corresponds to a section where the area becomes narrower in the movement line from b to c.

[0074]

[0075] The churning chamber portion (110) is formed in a ring shape with a predetermined width toward the radial outer side of the shaft (500), and is formed at the front and rear of the drum unit (400), respectively.

[0076] The above churning chamber part (110) is formed in a ring shape based on the drawing, and some of it moves from position d where the recovery hole (112) is formed to position e, and some moves to position f. The churning oil is maintained at a certain level of churning oil (LV) and then reduced or fluctuates.

[0077]

[0078] A recovery hole (112) for draining the churning oil is formed in the churning chamber (110). For example, the recovery hole (112) is positioned at the inner lowest position (6 o'clock in the drawing) of the churning chamber (110) with respect to the shaft (500).

[0079] The above recovery hole (112) is provided for draining churning oil, and the churning oil is recovered through the recovery hole (112) and then moved to an actuator (not shown), so that oil supply for stable lubrication is maintained and oil movement toward the air breather (10) is prevented.

[0080] The above recovery hole (112) is positioned at the upper side (10 o'clock in the drawing) of the churning chamber (110) based on the shaft (500). Since the position is located above the churning oil level (LV) described above, it is possible to prevent the phenomenon of the level of churning oil churned by the drum unit (400) from rising rapidly, thereby minimizing the phenomenon of churning oil moving toward the air breather (10).

[0081]

[0082] The churning chamber (110) is provided with baffles (114) at the 10 o'clock and 1 o'clock directions, respectively, to limit the movement of churning oil from the lower inner side to the upper side as shown in the drawing. As shown in the drawing, a plurality of baffles (114) are arranged adjacent to each other on the upper side with respect to the shaft (500).

[0083] The reason why the above-mentioned bulkhead part (114) is arranged in this way is to minimize the amount of movement to the bulkhead part (114) when the churning oil moves to the left and right sides along the churning chamber part (110) or moves to one place or simultaneously.

[0084] As illustrated in the attached drawing 2, the partition wall portion (114) is positioned with a predetermined gap from the inner surface of the churning chamber portion (110). In this case, even if a large amount of churning oil flows in, only a small amount of churning oil moves due to the gap, so that the amount of churning oil passing through the partition wall portion (114), which will be described later, is reduced.

[0085]

[0086] The above-mentioned bulkheads (114) are arranged in multiple numbers spaced apart from each other at a first inclination angle. For example, when the churning oil moves in the direction of the arrow at the e or f position, the phenomenon of moving toward the bulkheads (114) can be blocked, or the movement direction of the churning oil can be moved downward based on the drawing, thereby minimizing the movement in the direction in which the bulkheads (114) are positioned.

[0087] Since the above oil seal (200) is made of a material that does not chemically react with churning oil, it can maintain a stable sealing state even when used for a long period of time.

[0088]

[0089] Referring to the attached drawings 5 ​​and 6, a leakage conduit (120) is formed in the clutch case (100) through which the churning oil moves after passing through the bulkhead (114) on the upper side of the churning chamber (110).

[0090] The above leakage conduit (120) includes a first leakage conduit (122) inclined at a predetermined section from a left position of the clutch case (100) toward the drum unit (400) based on a longitudinal cross-section of the clutch case (100), and a second leakage conduit (124) inclined at a predetermined section from a right position of the clutch case (100) toward the drum unit (400).

[0091] The first leakage pipe (122) and the second leakage pipe (124) are extended with the inner upper surface inclined downward toward the oil return pipe (130) on the left and right sides of the drawing, respectively, from the central position as shown in the drawing.

[0092] In particular, when churning oil is sprayed, it is sprayed toward the inner upper surface of the first and second leakage pipes (122, 124) in the direction of gravity. In the present embodiment, the inner upper surfaces of the first and second leakage pipes (122, 124) are extended downwardly to the left and right, respectively, based on the inlet hole (151) described later, so that when churning oil is sprayed, it can move downwardly toward the left and right of the first and second leakage pipes (122, 124) and then move toward the churning oil recovery pipe (130).

[0093] In particular, in the clutch case (100), a churning oil recovery pipe (130) is formed that is connected to the first leakage pipe (122) and the second leakage pipe (124) so ​​that the excess churning oil that was not recovered in the leakage pipe (120) can be moved, so that the recovery of the churning oil described above is easily achieved.

[0094] When the first and second leakage pipes (122, 124) are extended downwardly toward the churning oil recovery pipe (130), even if some of the churning oil is sprayed upward in the direction of gravity from the first and second leakage pipes (122, 124), it is re-moved to the churning oil recovery pipe (130).

[0095] In this case, the churning oil may not have a path to move toward the air breather (10), thereby preventing the churning oil from leaking outward from the clutch case (100).

[0096] The churning oil is mainly recovered through the churning oil recovery pipe (130), and some of the oil is transferred to the leakage pipe (120).

[0097]

[0098] Referring to the attached drawings 7 and 8, the clutch case (100) according to the present embodiment is formed with an auxiliary chamber portion (150) formed in a predetermined size on the upper side of the leakage pipe (120), an auxiliary bulkhead (152) that partitions the leakage pipe (120) and the auxiliary chamber portion (150) from each other, and an inlet hole (151) that communicates between the leakage pipe (120) and the auxiliary chamber portion (150).

[0099] The above inflow hole (151) is formed at the center of the above leakage pipe (120) or at a location spaced to one side from the center and can be changed in various ways depending on the layout.

[0100] However, it may be more advantageous for the inlet hole (151) to be positioned at the center or at a position closest to the center to move to the air breather (10).

[0101]

[0102] The auxiliary chamber part (150) is formed with a smaller volume than the leakage pipe (120), and a portion of the churning oil flows in through the inlet hole (151). The auxiliary chamber part (150) can provide a space through which the churning oil moves via the inlet hole (151), and an oil recovery hole (153) is formed to re-move the churning oil to the leakage pipe (120).

[0103] The churning oil maintains a movement trajectory in which it moves from position A, which is the location of the leakage pipe (120), to position B, which is the location where the auxiliary chamber part (150) is formed. In addition, the churning oil is constantly maintained in a movement trajectory in which it moves from position B to position C by the shape of the auxiliary chamber part (150) itself and then moves back to the leakage pipe (120) through the oil recovery hole (153).

[0104] In this case, the churning oil is re-moved to the above-mentioned leakage pipe (120) through the oil recovery hole (153), so the phenomenon of moving toward the place where the air breather (10) is installed is minimized.

[0105] In this case, the present embodiment can prevent the phenomenon of churning oil leaking to the outside of the clutch case (100), thereby ensuring stable operation.

[0106] The above auxiliary chamber part (150) extends with its inner upper surface inclined downward to the left and right with respect to the center, so that the churning oil can naturally fall downward in the direction of gravity. In this case, the phenomenon of the churning oil moving toward the air breather (10) is prevented.

[0107]

[0108] The above auxiliary bulkhead (152) extends from the left and right sides of the inner bottom surface toward the inlet hole (151) based on the longitudinal cross-section of the clutch case (100).

[0109] When the auxiliary bulkhead (152) is extended in this way, the churning oil can move more easily toward the inlet hole (151) without being scattered upward in the direction of gravity.

[0110] In the clutch case (100), an air breather (10) is coupled to one extended end of the auxiliary chamber part (150), and the inner diameter of the auxiliary chamber part (150) decreases toward the position where the air breather (10) is installed.

[0111] When the auxiliary chamber portion (150) is formed in this manner, the flow rate of churning oil that can move to the air breather (10) is reduced, thereby preventing the phenomenon of churning oil leaking to the outside of the clutch case (100).

[0112] In order to prevent the direction of movement of churning oil from being easily changed in the auxiliary chamber part (150) according to the present embodiment, the auxiliary bulkhead (152) is extended as shown in the drawing, so that smooth movement of churning oil is not obstructed, and some of the scattered churning oil is drained toward the oil recovery hole (153) and re-moved to the leakage pipe (120).

[0113] That is, the above churning oil is prevented from moving to the air breather (10) due to restrictions on the movement path and direction caused by the shape of the auxiliary chamber (150) and the auxiliary bulkhead (152).

[0114] After the churning oil moves to the auxiliary chamber (150), its movement is restricted by the auxiliary bulkhead (152) and it is recovered through the oil recovery hole (153), so that leakage to the outside of the air breather (10) or clutch case (100) is prevented.

[0115]

[0116] According to another embodiment of the present invention, a twin clutch device includes a clutch case (100) equipped with an air breather (10), a clutch unit (300) disposed inside the clutch case (100), a drum unit (400) for churning churning oil inside the clutch case (100), a shaft (500) coupled with the drum unit (400), a churning chamber unit (110) formed inside the clutch case (100) with a predetermined size along a path along which churning oil churned by the drum unit (400) moves toward the air breather (10), an oil seal (200) coupled to the churning chamber unit (110), and a partition wall unit (114) (see FIG. 9) for limiting movement of churning oil from the lower inner side to the upper side is provided in the churning chamber unit (110).

[0117] In this embodiment, the configuration up to the oil seal (200) of the twin clutch device is the same as that of the previously described embodiment, and a partition wall (114) is provided. In the partition wall (114), a rounded direction change portion (114a) is formed inward to guide a path for churning oil to drain downward in the direction of gravity.

[0118] The above direction change unit (114a) guides the direction of movement of the churning oil toward the lower side of the churning chamber unit (110) when the churning oil moves to the bulkhead unit (114), thereby moving it downward in the direction of gravity.

[0119] The above-mentioned direction changing part (114a) is not limited to the curvature shown in the drawing and can be changed in various ways, and it may also be possible to change it to a configuration in which a protrusion (not shown) is formed on the inside to obstruct the movement flow of churning oil.

[0120] In this way, when the churning oil comes into contact with and collides with the bulkhead (114) and the direction change portion (114a), the movement path is changed to minimize movement to the air breather (10).

[0121] In this embodiment, an oil seal (200) is provided in the churning chamber (110) to minimize the phenomenon of churning oil moving to the location where the air breather (10) is installed and to reduce churning oil leaking to the outside through the air breather (10).

[0122] The above churning oil is provided with an oil seal (200) so that it moves with a minimum gap to the shaft (500) located in the clutch case (100), so that the amount of churning oil moved to the oil seal (200) can be minimized.

[0123]

[0124] The churning chamber portion (110) is formed in a ring shape with a predetermined width toward the radial outer side of the shaft (500), and is formed at the front and rear of the drum unit (400), respectively.

[0125] The above churning chamber part (110) is formed in a ring shape based on the drawing, and at the location where the recovery hole (112) is formed, some of it moves upward based on the drawing, and the churning oil is maintained at a certain churning oil level (LV) and then reduced or fluctuated.

[0126]

[0127] A recovery hole (112) for draining the churning oil is formed in the churning chamber (110). For example, the recovery hole (112) is positioned at the inner lowest position (6 o'clock in the drawing) of the churning chamber (110) with respect to the shaft (500).

[0128] The above recovery hole (112) is provided for draining churning oil, and oil movement toward the air breather (10) is prevented.

[0129] The above recovery hole (112) is positioned at the upper side (10 o'clock in the drawing) of the churning chamber (110) based on the shaft (500). Since the position is located above the churning oil level (LV) described above, it is possible to prevent the phenomenon of the level of churning oil churned by the drum unit (400) from rising rapidly, thereby minimizing the phenomenon of churning oil moving toward the air breather (10).

[0130]

[0131] In the above churning chamber (110), a baffle (114) is provided at the 10 o'clock and 1 o'clock directions respectively based on the drawing to limit the movement of churning oil from the lower inner side to the upper side.

[0132] As shown in the drawing, the above bulkhead portion (114) is arranged in multiple numbers adjacent to each other on the upper side based on the shaft (500).

[0133] The reason why the above-mentioned bulkhead part (114) is arranged in this way is to minimize the amount of movement to the bulkhead part (114) when the churning oil moves to the left and right sides along the churning chamber part (110) or moves to one place or simultaneously.

[0134] The above-described bulkhead (114) is positioned with a predetermined gap from the inner surface of the churning chamber (110). In this case, even if a large amount of churning oil flows in, only a small amount of churning oil moves due to the gap, so that the amount of churning oil passing through the bulkhead (114), which will be described later, is reduced.

[0135]

[0136] The above-mentioned bulkheads (114) are arranged in multiple numbers spaced apart from each other at a first inclination angle. For example, when the churning oil moves in the direction of the arrow at the above-mentioned e or f position, the phenomenon of moving toward the bulkheads (114) can be blocked, or the movement direction of the churning oil can be moved downward based on the drawing, thereby minimizing the movement in the direction in which the bulkheads (114) are positioned.

[0137] Since the above oil seal (200) is made of a material that does not chemically react with churning oil, it can maintain a stable sealing state even when used for a long period of time.

[0138]

[0139] In the clutch case (100), a leakage conduit (120) is formed through which the churning oil moves after passing through the bulkhead (114) on the upper side of the churning chamber (110).

[0140] The above leakage conduit (120) includes a first leakage conduit (122) inclined at a predetermined section from a left position of the clutch case (100) toward the drum unit (400) based on a longitudinal cross-section of the clutch case (100), and a second leakage conduit (124) inclined at a predetermined section from a right position of the clutch case (100) toward the drum unit (400).

[0141] The first leakage pipe (122) and the second leakage pipe (124) are extended with the inner upper surface inclined downward toward the oil return pipe (130) on the left and right sides of the drawing, respectively, from the central position as shown in the drawing.

[0142] In particular, when churning oil is sprayed, it is sprayed toward the inner upper surface of the first and second leakage pipes (122, 124) in the direction of gravity. In the present embodiment, the inner upper surfaces of the first and second leakage pipes (122, 124) are extended downwardly to the left and right, respectively, based on the inlet hole (151) described later, so that when churning oil is sprayed, it can move downwardly toward the left and right of the first and second leakage pipes (122, 124) and then move toward the churning oil recovery pipe (130).

[0143] In particular, in the clutch case (100), a churning oil recovery pipe (130) is formed that is connected to the first leakage pipe (122) and the second leakage pipe (124) so ​​that the excess churning oil that was not recovered in the leakage pipe (120) can be moved, so that the recovery of the churning oil described above is easily achieved.

[0144] When the first and second leakage pipes (122, 124) are extended downwardly toward the churning oil recovery pipe (130), even if some of the churning oil is sprayed upward in the direction of gravity from the first and second leakage pipes (122, 124), it is re-moved to the churning oil recovery pipe (130).

[0145] In this case, the churning oil may not have a path to move toward the air breather (10), thereby preventing the churning oil from leaking outward from the clutch case (100).

[0146] The churning oil is mainly recovered through the churning oil recovery pipe (130), and some of the oil is transferred to the leakage pipe (120).

[0147]

[0148] In the clutch case (100) according to the present embodiment, an auxiliary chamber portion (150) formed with a predetermined size on the upper side of a leakage pipe (120), an auxiliary partition wall (152) that partitions the leakage pipe (120) and the auxiliary chamber portion (150) from each other, and an inlet hole (151) that communicates between the leakage pipe (120) and the auxiliary chamber portion (150) are formed.

[0149] The above inflow hole (151) is formed at the center of the above leakage pipe (120) or at a location spaced to one side from the center and can be changed in various ways depending on the layout.

[0150] However, it may be more advantageous to place the inlet hole (151) at the center or at a location closest to the center to shorten the movement path of the churning oil.

[0151]

[0152] The auxiliary chamber part (150) is formed with a smaller volume than the leakage pipe (120), and a portion of the churning oil flows in through the inlet hole (151). The auxiliary chamber part (150) can provide a space through which the churning oil moves via the inlet hole (151), and an oil recovery hole (153) is formed to re-move the churning oil to the leakage pipe (120).

[0153] The churning oil maintains a movement trajectory in which it moves from position A, which is the location of the leakage pipe (120), to position B, which is the location where the auxiliary chamber part (150) is formed. In addition, the churning oil is constantly maintained in a movement trajectory in which it moves from position B to position C by the shape of the auxiliary chamber part (150) itself and then moves back to the leakage pipe (120) through the oil recovery hole (153).

[0154] In this case, the churning oil is re-moved to the above-mentioned leakage pipe (120) through the oil recovery hole (153), so the phenomenon of moving toward the place where the air breather (10) is installed is minimized.

[0155] In this case, the present embodiment can prevent the phenomenon of churning oil leaking to the outside of the clutch case (100), thereby ensuring stable operation.

[0156] The auxiliary chamber section (150) above extends with its inner upper surface inclined downward to the left and right with respect to the center, so that the turning oil can naturally fall downward in the direction of gravity. In this case, the phenomenon of the turning oil moving toward the air breather (10) is prevented.

[0157]

[0158] The above auxiliary bulkhead (152) extends from the left and right sides of the inner bottom surface toward the inlet hole (151) based on the longitudinal cross-section of the clutch case (100).

[0159] When the auxiliary bulkhead (152) is extended in this way, the churning oil can move more easily toward the inlet hole (151) without being scattered upward in the direction of gravity.

[0160] In the clutch case (100), an air breather (10) is coupled to one extended end of the auxiliary chamber part (150), and the inner diameter of the auxiliary chamber part (150) decreases toward the position where the air breather (10) is installed.

[0161] When the auxiliary chamber portion (150) is formed in this manner, the flow rate of churning oil that can move to the air breather (10) is reduced, thereby preventing the phenomenon of churning oil leaking to the outside of the clutch case (100).

[0162] In order to prevent the direction of movement of churning oil from being easily changed in the auxiliary chamber part (150) according to the present embodiment, the auxiliary bulkhead (152) is extended as shown in the drawing, so that smooth movement of churning oil is not obstructed, and some of the scattered churning oil is drained toward the oil recovery hole (153) and re-moved to the leakage pipe (120).

[0163] That is, the above churning oil is prevented from moving to the air breather (10) due to restrictions on the movement path and direction caused by the shape of the auxiliary chamber (150) and the auxiliary bulkhead (152).

[0164] After the churning oil moves to the auxiliary chamber (150), its movement is restricted by the auxiliary bulkhead (152) and it is recovered through the oil recovery hole (153), so that leakage to the outside of the air breather (10) or clutch case (100) is prevented.

[0165] Above, one embodiment of the present invention has been described, but a person having ordinary skill in the art will be able to modify and change the present invention in various ways by adding, changing, deleting or adding components, etc., within the scope that does not depart from the spirit of the present invention described in the claims, and this will also be considered to be included within the scope of the rights of the present invention.

[0166]

[0167] The present embodiments can be applied to and used in a device having a twin clutch or similar configuration in which churning oil is used.

Claims

1. Clutch case (100) equipped with air breather (10); A clutch part (300) arranged inside the above clutch case (100); A drum unit (400) that churns churning oil inside the clutch case (100); A shaft (500) coupled with the above drum unit (400); A churning chamber (110) formed on the inside of the clutch case (100) with a predetermined size in the path through which the churning oil churned by the drum unit (400) moves toward the air breather (10); and A twin clutch device including an oil seal (200) coupled to the above churning chamber portion (110).

2. In paragraph 1, The above churning chamber part (110) is formed in a ring shape with a predetermined width toward the radial outer side of the shaft (500), and is a twin clutch device formed at the front and rear of the drum unit (400), respectively.

3. In paragraph 2, A twin clutch device in which a recovery hole (112) for draining churning oil is formed in the churning chamber (110).

4. In paragraph 3, The above recovery hole (112) is a twin clutch device positioned at the inner lowest position of the churning chamber part (110) based on the shaft (500).

5. In paragraph 3, The above recovery hole (112) is a twin clutch device positioned on the upper side of the churning chamber part (110) based on the shaft (500).

6. In paragraph 1, A twin clutch device having a baffle section (114) in the churning chamber section (110) to limit the movement of churning oil from the lower inner side to the upper side.

7. In paragraph 6, The above bulkhead part (114) is a twin clutch device in which a plurality of them are arranged adjacent to each other on the upper side based on the shaft (500).

8. In paragraph 6, The above-mentioned baffle members (114) are a twin clutch device in which a plurality of them are arranged spaced apart from each other at a first inclination angle.

9. In paragraph 6, A twin clutch device in which a leakage conduit (120) is formed in the clutch case (100) through which the churning oil moves after passing through the partition (114) on the upper side of the churning chamber (110).

10. In paragraph 9, The above leakage pipe (120) is a first leakage pipe (122) formed on the left side of the clutch case (100) based on the longitudinal cross-section of the clutch case (100); A twin clutch device including a second leakage conduit (124) formed at the right position of the clutch case (100).

11. In clause 10, A twin clutch device in which a churning oil recovery pipe (130) is formed in the clutch case (100) so that excess churning oil that is not recovered from the leakage pipe (120) is moved, and is connected to both ends of the leakage pipe (120).

12. In paragraph 11, The above first leakage pipe (122) and the above second leakage pipe (124) are twin clutch devices in which the inner upper surfaces thereof are extended at an angle toward the churning oil recovery pipe (130).

13. In paragraph 10, The above clutch case (100) has an auxiliary chamber (150) formed with a predetermined size on the upper side of the above leakage pipe (120); An auxiliary bulkhead (152) that separates the above leakage pipe (120) and the auxiliary chamber part (150) from each other; A twin clutch device having an inlet hole (151) formed between the above leakage pipe (120) and the auxiliary chamber part (150) to communicate with each other.

14. In paragraph 13, The above inflow hole (151) is a twin clutch device formed at the center of the above leakage pipe (120) or at a location spaced to one side from the center.

15. In paragraph 13, A twin clutch device in which an oil recovery hole (153) is formed in the auxiliary chamber section (150) so that churning oil introduced through the inflow hole (151) is re-directed to a leakage pipe (120).

16. In paragraph 13, The above auxiliary bulkhead (152) is a twin clutch device in which the inner bottom surface is extended from the left and right positions based on the longitudinal cross-section of the clutch case (100) and inclined toward the inlet hole (151).

17. In paragraph 15, A twin clutch device in which an air breather (10) is coupled to an extended end of the auxiliary chamber part (150) of the clutch case (100), and the inner diameter of the auxiliary chamber part (150) decreases toward the position where the air breather (10) is installed.

18. In paragraph 6, A twin clutch device in which a rounded direction changing portion (114a) is formed inwardly in the above bulkhead portion (114) to induce a path for churning oil to drain downward in the direction of gravity.

19. In paragraph 13, A twin clutch device in which the above leakage pipe (120) and the auxiliary chamber part (150) are formed with different volumes.

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