KR20100061150A - Torque converter for vehicle - Google Patents

Torque converter for vehicle Download PDF

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Publication number
KR20100061150A
KR20100061150A KR1020080120050A KR20080120050A KR20100061150A KR 20100061150 A KR20100061150 A KR 20100061150A KR 1020080120050 A KR1020080120050 A KR 1020080120050A KR 20080120050 A KR20080120050 A KR 20080120050A KR 20100061150 A KR20100061150 A KR 20100061150A
Authority
KR
South Korea
Prior art keywords
front cover
coupled
turbine
input shaft
impeller
Prior art date
Application number
KR1020080120050A
Other languages
Korean (ko)
Inventor
국재창
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020080120050A priority Critical patent/KR20100061150A/en
Publication of KR20100061150A publication Critical patent/KR20100061150A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/1201—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon for damping of axial or radial, i.e. non-torsional vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
    • F16H2045/0226—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers
    • F16H2045/0231—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
    • F16H2045/0236—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means with axial dampers, e.g. comprising a ramp system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
    • F16H2045/0247—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means having a turbine with hydrodynamic damping means

Abstract

The present invention relates to a vehicle torque converter that can suppress transmission of vibration of a turbine to an input shaft of a transmission. The vehicle torque converter according to the present invention comprises: i) a front cover coupled to the crankshaft of the engine and rotating; ii) an impeller coupled to the front cover and rotating together with the front cover, and iii) an impeller between the front cover and the impeller. A turbine installed so as to face each other and coupled to the input shaft of the transmission via a connecting member, i) a lockup clutch directly connecting the front cover and the input shaft, i) a damper coupled to at least one of the lockup clutch and the turbine, i) It is fixed to the front cover, and rotatably coupled to the connecting member includes a vibration preventing member that absorbs vibration of the turbine and the damper.

Description

Automotive Torque Converter {TORQUE CONVERTER FOR VEHICLE}

The present invention relates to a vehicle torque converter, and more particularly, to a vehicle torque converter that can suppress the transmission of vibration of the turbine assembly to the input shaft of the transmission.

In general, the torque converter is installed between the engine and the transmission of the vehicle, and is a device for transmitting the driving force of the engine to the transmission using a fluid. Conventional torque converters include an impeller coupled to the crankshaft of the engine and rotating, a turbine coupled to the input shaft of the transmission and arranged to face the impeller, starting from the impeller and transmitting kinetic energy to the turbine within a certain operating range. It includes a stator for changing the direction of the oil to be recovered to increase the rotational force of the impeller again.

The torque converter has a lock-up clutch that directly connects the engine and the transmission since the power transmission efficiency decreases as the load acting on the engine increases. The lockup clutch includes a piston movable in the axial direction, and the piston is provided with a friction material in contact with the front cover. In addition, one side of the piston facing the turbine is provided with a damper for absorbing the shock and vibration acting in the rotational direction of the shaft when the friction material contacts the front cover. The turbine and damper make up the turbine assembly.

In the driving process of the torque converter described above, the turbine assembly generates vibration along a direction orthogonal to the input axis due to structural unbalance. This vibration is transmitted to the input shaft of the transmission as it is, the input shaft is configured to absorb or support the vibration of the turbine assembly. However, in recent years, as the use range of the damper increases, the weight and the unbalance amount of the turbine assembly increase, and thus the input shaft of the transmission fails to support its force and is damaged.

The present invention is to solve the above problems, an object of the present invention is to provide a vehicle torque converter that can prevent the input shaft of the transmission assembly to prevent the vibration of the turbine assembly is transmitted to the transmission shaft.

The vehicle torque converter according to an embodiment of the present invention includes: i) a front cover coupled to the crankshaft of the engine and rotating; ii) an impeller coupled to the front cover and rotating together with the front cover, and iii) a front cover and the impeller. A turbine coupled to the input shaft of the transmission via a connecting member, iii) a lockup clutch directly connecting the front cover and the input shaft, iii) a damper coupled to at least one of the lockup clutch and the turbine. And iii) a vibration preventing member fixed to the front cover and rotatably coupled to the connecting member to absorb vibrations of the turbine and the damper.

The anti-vibration member may include a disk-shaped fixing plate fixed to the center of the front cover and an annular extension portion extending from the edge of the fixing plate. The connecting member may form a recess for receiving the end of the extension. The vehicle torque converter may further include a rotation support member which is built in the recess and is coupled to the end of the extension.

In the vehicle torque converter according to an embodiment of the present invention, since the vibration preventing member absorbs vibrations of the turbine assembly and the connecting member, the input shaft of the transmission has only rotational power from the turbine or the lockup clutch in a state where the vibration is removed by the vibration preventing member. You will be delivered. Therefore, the damage of the transmission input shaft by the vibration of a turbine assembly can be suppressed effectively.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is a partial cross-sectional view of a drive torque converter according to an embodiment of the present invention, Figure 2 is a partial enlarged view of FIG.

1 and 2, the vehicle torque converter 100 includes a front cover 12, an impeller 14, a turbine 16, a stator 18, a lockup clutch 20, a damper 22, and vibration prevention. It includes the part 24.

The front cover 12 is coupled to the crankshaft 26 of the engine (not shown) and rotates with the crankshaft 26. To this end, the drive plate 28 may be fixed to the crankshaft 26 by screwing, and the front cover 12 may be fixed to the drive plate 28 by screwing. The impeller shell 30 is fixed to the front cover 12 by welding, and the impeller 14 is located inside the impeller shell 30 and rotates together with the front cover 12.

And the turbine 16 is installed between the front cover 12 and the impeller 14 at a predetermined distance from the impeller 14, the inside of the torque converter 100 is filled with oil. The turbine 16 is coupled to the input shaft 34 of the transmission (not shown) via the connecting member 32 to transmit the rotational force of the turbine 16 to the input shaft 34. The stator 18 is located between the impeller 14 and the turbine 16, starts the impeller 14 within a certain operating range, transfers kinetic energy to the turbine 16, and reverses the direction of oil recovered. It acts to increase the rotational force of the impeller 14.

The lockup clutch 20 is used as a means of directly connecting the engine and the transmission and is located between the front cover 12 and the turbine 16. The lockup clutch 20 has a piston 36 formed in a substantially disk shape, and the piston 36 is formed with a friction material 38 which contacts the front cover 12 when the lockup clutch 20 is operated. The piston 36 is fixed to the connecting member 32 and rotates together with the turbine 16, and is arranged to move along the axial direction of the input shaft 34.

The damper 22 is installed in at least one of the lockup clutch 20 and the turbine 16. 1 shows a configuration in which the damper 22 is coupled to both the lockup clutch 20 and the turbine 16 as an example. The damper 22 is formed of the input shaft 34 when the friction material 38 is in close contact with the front cover 12 so that the rotational force of the front cover 12 is directly transmitted to the input shaft 34 through the lock-up clutch 20. Absorbs the torsional force generated in the direction of rotation to reduce vibration. The detailed structure and the number of applications of the damper 22 are not limited to the illustrated example and may be variously modified. The turbine 16 and the damper 22 constitute a turbine assembly.

In the torque converter 100 having the above-described configuration, the turbine assembly generates vibration in a direction orthogonal to the input shaft 34 due to structural unbalance when the torque converter 100 is driven, and the vibration is input shaft 34 of the transmission. ) Is passed as is. Therefore, the torque converter 100 of the present embodiment includes an anti-vibration member 24 between the front cover 12 and the connecting member 32 to block the vibration of the turbine assembly from being transmitted to the input shaft 34 of the transmission. .

The vibration preventing member 24 is fixed to the center of the front cover 12, it is rotatably coupled to the connecting member (32). To this end, the vibration preventing member 24 includes a fixing plate 241 which is formed in a substantially disk shape, and an annular extension portion 242 extending toward the input shaft 34 at the edge of the fixing plate 241. The connecting member 32 forms a recess 321 (see FIG. 2) for accommodating an end of the extension 242, and the recess 321 is provided with a rotation support member 40 formed of a bearing or a bush. do.

Thus, the vibration preventing member 24 is fixed to the front cover 12 of the outer surface of the fixing plate 241 is firmly fixed, the end of the extension portion 242 is fastened to the rotary support member 40 installed on the connecting member 32 It is rotatably coupled to the connecting member (32).

Since the aforementioned vibration preventing member 24 is fixed to the center of the front cover 12 and does not move in the direction orthogonal to the input shaft 34 when the torque converter 100 is actuated, the turbine assembly vibrates and the connecting member 32. ) Vibrate along with the turbine assembly along the direction orthogonal to the input shaft 34, the vibration preventing member 24 fixes the position of the connecting member 32 such that the vibration of the turbine assembly is reduced to the input shaft 34 of the transmission. To be passed).

Therefore, in the torque converter 100 of the present embodiment, since the input shaft 34 of the transmission receives only rotational power from the turbine 16 or the lock-up clutch 20 while the vibration is removed by the vibration preventing member 24, the vibration is transmitted. It is possible to effectively suppress breakage by

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.

1 is a partial cross-sectional view of a drive torque converter according to an embodiment of the present invention.

FIG. 2 is a partially enlarged view of FIG. 1.

Claims (3)

A front cover coupled to the crankshaft of the engine and rotating; An impeller coupled to the front cover and rotating together with the front cover; A turbine installed to face the impeller between the front cover and the impeller and coupled to an input shaft of the transmission through a connecting member; A lockup clutch directly connecting the front cover and the input shaft; A damper coupled to at least one of the lockup clutch and the turbine; And A vibration preventing member fixed to the front cover and rotatably coupled to the connection member to absorb vibrations of the turbine and the damper. Vehicle torque converter comprising a. The method of claim 1, The anti-vibration member includes a disk-shaped fixing plate fixed to the center of the front cover, and an annular extension extending from an edge of the fixing plate. And said connecting member forms a recess for receiving an end of said extension. The method of claim 2, And a rotation support member which is installed in the recess and coupled to the end of the extension portion.
KR1020080120050A 2008-11-28 2008-11-28 Torque converter for vehicle KR20100061150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080120050A KR20100061150A (en) 2008-11-28 2008-11-28 Torque converter for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080120050A KR20100061150A (en) 2008-11-28 2008-11-28 Torque converter for vehicle

Publications (1)

Publication Number Publication Date
KR20100061150A true KR20100061150A (en) 2010-06-07

Family

ID=42361972

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080120050A KR20100061150A (en) 2008-11-28 2008-11-28 Torque converter for vehicle

Country Status (1)

Country Link
KR (1) KR20100061150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101700127B1 (en) 2016-03-29 2017-01-31 (주) 거화엔지니어링 Torque converter for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101700127B1 (en) 2016-03-29 2017-01-31 (주) 거화엔지니어링 Torque converter for vehicle

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