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KR100792561B1 - Automatic transmission with discharge flow path improving structure - Google Patents

Automatic transmission with discharge flow path improving structure Download PDF

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Publication number
KR100792561B1
KR100792561B1 KR1020060047032A KR20060047032A KR100792561B1 KR 100792561 B1 KR100792561 B1 KR 100792561B1 KR 1020060047032 A KR1020060047032 A KR 1020060047032A KR 20060047032 A KR20060047032 A KR 20060047032A KR 100792561 B1 KR100792561 B1 KR 100792561B1
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South Korea
Prior art keywords
flow path
discharge flow
automatic transmission
piston
clutch
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KR20070113589A (en
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서강수
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현대자동차주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H61/0025—Supply of control fluid; Pumps therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H2061/0046—Details of fluid supply channels, e.g. within shafts, for supplying friction devices or transmission actuators with control fluid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

본 발명은 배출 유로 개선구조를 갖는 자동변속기에 관한 것이다. 그 배출 유로 개선구조를 갖는 자동변속기는, 피스톤 리테이너(80)의 직근 전방에 배치된 클러치 피스톤(110)의 작동을 위한 유압이 공급되는 유입유로(300)가 클러치 보스(200)에 형성되고, 유입유로(300)의 하부에 마련된 슬리브(210)에 유체의 누유를 막는 씰(400)이 설치되며, 클러치 피스톤(110)의 작동 중 유압 상승으로 인해 씰(400)을 통해 공간부(500)로 유체가 누유된 경우, 그 누유된 유체를 공간부(500)로부터 배출하기 위한 배출유로(700)가 마련된 배출 유로 개선구조를 갖는 자동변속기로서, 여기서, 배출유로(700)는, 상기 슬리브(210)의 외측 둘레면에 근접되게 리어커버(600))상에 수평하게 마련되어 리어커버(600)와 피스톤 리테이너(80) 사이로 연결되는 것을 특징으로 한다.The present invention relates to an automatic transmission having a discharge passage improvement structure. In the automatic transmission having the discharge flow path improving structure, the inlet flow path 300 to which the hydraulic pressure for the operation of the clutch piston 110 disposed in front of the piston retainer 80 is provided is formed in the clutch boss 200. The seal 400 which prevents leakage of fluid is installed in the sleeve 210 provided at the lower portion of the inflow passage 300, and the space portion 500 is provided through the seal 400 due to the hydraulic rise during the operation of the clutch piston 110. When the furnace fluid is leaked, the automatic transmission having a discharge flow path improvement structure provided with a discharge flow path 700 for discharging the leaked fluid from the space 500, wherein the discharge flow path 700 is the sleeve ( It is provided horizontally on the rear cover 600 to be close to the outer peripheral surface of the 210 is characterized in that connected between the rear cover 600 and the piston retainer (80).

자동변속기, 클러치 피스톤, 배출유로, 클러치 보스 Automatic transmission, clutch piston, exhaust passage, clutch boss

Description

배출 유로 개선구조를 갖는 자동변속기{Auto-Transmission Having Improved Structure of Oil Discharging Path}Auto-Transmission Having Improved Structure of Oil Discharging Path}

도 1은 종래의 자동변속기 배출 유로를 도시한 단면도.1 is a cross-sectional view showing a conventional automatic transmission discharge passage.

도 2는 본 발명에 따른 배출 유로 개선구조를 갖는 자동변속기를 도시한 단면도.2 is a cross-sectional view showing an automatic transmission having a discharge passage improvement structure according to the present invention.

※도면의 주요 부분에 대한 부호 설명※※ Code explanation about main part of drawing ※

100,110,120: 클러치 피스톤 130: 스프링100, 110, 120: clutch piston 130: spring

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140: 브래킷 150: 작동부140: bracket 150: operating part

160: 마찰판 200: 클러치 보스160: friction plate 200: clutch boss

210: 슬리브 300: 유입 유로210: sleeve 300: inflow channel

400: 씰 500: 공간부400: seal 500: space part

600: 리어커버 700: 배출 유로600: rear cover 700: discharge flow path

본 발명은 배출 유로 개선구조를 갖는 자동변속기에 관한 것으로서, 더욱 상세하게는 자동변속기 내 클러치 피스톤을 작동시키기 위해 공급되는 유압과 클러치 피스톤 작동으로 인해 상승되는 압력으로 누유된 유체를 원활히 배출시킬 수 있는 배출 유로 개선구조를 갖는 자동변속기에 관한 것이다.The present invention relates to an automatic transmission having a discharge flow path improving structure, and more particularly, it is possible to smoothly discharge the leaked fluid at an elevated pressure due to the hydraulic pressure supplied to operate the clutch piston in the automatic transmission and the clutch piston operation. An automatic transmission having a discharge flow path improving structure.

일반적으로, 자동변속기에는 유성기어장치의 각 구성요소로는 링기어, 선기어, 및 유성기어 캐리어 등을 구동시키거나 피동축에 연결하기 위한 여러 종류의 마찰 작동요소들이 있다.In general, the automatic transmission includes various types of friction actuation elements for driving or connecting a driven gear, such as a ring gear, a sun gear, and a planetary gear carrier, as components of the planetary gear device.

이러한 마찰 작동요소로서 다판 클러치, 밴드 브레이크 및 일방향 클러치 등이 있다.Such friction actuation elements include multi-plate clutches, band brakes and one-way clutches.

도 1에 도시된 바와 같이 자동변속기의 클러치 피스톤 구조를 살펴보면 다음과 같다.Looking at the clutch piston structure of the automatic transmission as shown in Figure 1 as follows.

클러치에 토크를 전달하기 위해 구성된 클러치 보스(20)에 슬리브(21)가 각각 설치되고, 클러치 보스(20)에는 피스톤(10: 11,12)에 유압을 공급하기 위한 유입 유로가 형성되어 있다.Sleeves 21 are respectively installed in the clutch boss 20 configured to transmit torque to the clutch, and the inlet flow passages for supplying hydraulic pressure to the pistons 10, 11 and 12 are formed in the clutch boss 20. FIG.

특히, 상기 피스톤 리테이너 직근 전방에 배치된 피스톤(11)에 유입 유로(30)를 통하여 작동 유압이 공급되면 피스톤(11)이, 도 1에서 볼 때, 우측으로 이동될 수 있게 되는 것이며, 이와 같이 이동하는 피스톤(11)은 도면에서 좌측으로 탄력 지지하도록 설치되어 있는 스프링(13)에 의해 원래의 위치로 복귀할 수 있도록 구성되어 있으며, 상기 스프링(13)은 브래킷(14)에 지지되고 있다.In particular, when the hydraulic pressure is supplied to the piston 11 disposed in front of the piston retainer directly through the inflow passage 30, the piston 11 can be moved to the right side, as shown in FIG. 1. The moving piston 11 is configured to be able to return to its original position by a spring 13 installed to elastically support to the left in the figure, and the spring 13 is supported by the bracket 14.

상기와 같은 일반적인 구조의 유입 유로를 따라 작동 유압이 유입되면, 피스톤(10)은 상술한 바와 같이 우측으로 이동하면서 피스톤(10)의 작동부(15)가 클러치의 마찰판(16)을 밀어 클러치를 작동시킨다.When the hydraulic pressure flows along the inflow passage of the general structure as described above, the piston 10 moves to the right as described above, while the operating portion 15 of the piston 10 pushes the friction plate 16 of the clutch to lift the clutch. It works.

이 후 작동 유압이 제거되면 피스톤(10)은 스프링(13)의 복원력에 의해 원래의 위치로 복귀하여 대기 상태에 이르게 된다.After the operation hydraulic pressure is removed after the piston 10 is returned to its original position by the restoring force of the spring 13 to reach the standby state.

상기와 같은 클러치 피스톤의 작동을 위해 유입 유로(30)를 따라 유압이 공급되고, 이 유입 유로(30)에 유압이 걸릴 때 씰(seal)(40)사이로 유체가 조금씩 누유되어 공간부(50)에 고이게 된다.Hydraulic pressure is supplied along the inflow passage 30 for the operation of the clutch piston as described above, and when the hydraulic pressure is applied to the inflow passage 30, fluid is leaked little by little between the seals 40 and the space 50. Goes to

상기 공간부(50)에 고인 유체의 배출을 위해서 배출 유로(70)를 가공하여 구성되어 있고, 외부와의 밀폐를 위한 추가부품인 볼(ball)(71)이 추가로 구성되어 진다.The discharge passage 70 is processed to discharge the fluid accumulated in the space 50, and a ball 71, which is an additional component for sealing with the outside, is further configured.

그러나, 상기와 같이 공간부(50)에 고인 유체의 배출을 위해서 구성되는 배출 유로(70)는 그 형상이 3번 절곡되어 형성됨과 더불어 외부와의 밀폐를 위한 볼(71)이 구성됨으로, 이에 따라 원가 및 조립공정이 상승하는 문제점을 내포하고 있다.However, as described above, the discharge passage 70 configured to discharge the fluid accumulated in the space 50 is formed by bending the shape three times, and the ball 71 for sealing with the outside is configured. As a result, the cost and assembly process are rising.

본 발명은 상기와 같은 문제점을 해결하기 위해 제안된 것으로서, 누유된 유체가 포집되는 공간부에 유체의 배출을 위해서 그 형상이 3번 절곡되어 형성된 배출 유로의 형상을 달리하고, 외부와의 밀폐를 위해 설치되는 볼의 구성을 삭제함으로 달리하여 원가 및 조립공정이 상승하는 문제점을 해결하는데 그 목적이 있다.The present invention has been proposed to solve the above problems, different shape of the discharge flow path formed by bending the shape three times for the discharge of the fluid in the space in which the leaked fluid is collected, and the sealing with the outside By eliminating the configuration of the ball is installed for the purpose of solving the problem of rising cost and assembly process.

상기의 목적을 달성하기 위한 본 발명에 따른 배출 유로 개선구조를 갖는 자동변속기는, 피스톤 리테이너의 직근 전방에 배치된 클러치 피스톤의 작동을 위한 유압이 공급되는 유입유로가 클러치 보스에 형성되고, 유입유로의 하부에 마련된 슬리브에 유체의 누유를 막는 씰이 설치되며, 클러치 피스톤의 작동 중 유압 상승으로 인해 씰을 통해 공간부로 유체가 누유된 경우, 그 누유된 유체를 공간부로부터 배출하기 위한 배출유로가 마련된 배출 유로 개선구조를 갖는 자동변속기로서, 여기서, 배출유로는, 상기 슬리브의 외측 둘레면에 근접되게 리어커버상에 수평하게 마련되어 리어커버와 피스톤 리테이너 사이로 연결되는 것을 특징으로 한다.In the automatic transmission having a discharge flow path improving structure according to the present invention for achieving the above object, an inflow passage for supplying hydraulic pressure for operation of the clutch piston disposed in front of the piston retainer is formed in the clutch boss, the inflow passage A seal that prevents leakage of fluid is installed in the sleeve provided at the lower part of the sleeve, and when the fluid leaks into the space portion through the seal due to the hydraulic rise during operation of the clutch piston, a discharge passage for discharging the leaked fluid from the space portion is provided. An automatic transmission having a discharge flow path improving structure provided, wherein the discharge flow path is provided horizontally on the rear cover in proximity to the outer circumferential surface of the sleeve and is connected between the rear cover and the piston retainer.

이하에서, 본 발명에 따른 배출 유로 개선구조를 갖는 자동변속기 구성 및 그에 따른 실시예를 첨부된 도면을 참조로 더욱 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, an automatic transmission configuration having a discharge passage improvement structure and an embodiment thereof according to the present invention will be described in more detail.

도 2는 본 발명에 따른 배출 유로 개선구조를 갖는 자동변속기를 도시한 단면도이다.2 is a cross-sectional view showing an automatic transmission having a discharge passage improvement structure according to the present invention.

자동변속기 내에 위치한 클러치에 토크를 전달하기 위해 구성된 클러치 보스(200)가 설치되며, 이 클러치 보스(200)에는 피스톤 리테이너(80)의 직근 전방에 배치된 클러치 피스톤(110)의 작동을 위한 유압이 공급되는 유입유로(300)가 형성된다. 슬리브(210)의 어느 일측 중앙부에는 유입유로(300)가 연결되어 있어 이를 통해 자동변속기 내의 피스톤 리테이너(80)와 피스톤(110) 사이로 유압이 유입이 공급된다.
그리고, 유입유로(300)의 하부에 마련된 슬리브(210)에 유체의 누유를 막는 씰(400)이 설치되며, 클러치 피스톤(110)의 작동 중 유압 상승으로 인해 씰(400)을 통해 공간부(500)로 유체가 누유된 경우, 그 누유된 유체를 공간부(500)로부터 배출하기 위한 배출유로(700)가 마련된다. 특히, 배출유로(700)는 슬리브(210)의 외측 둘레면에 근접되게 리어커버(600))상에 수평하게 마련되어 리어커버(600)와 피스톤 리테이너(80) 사이로 연결된다.
참고로, 도 2에는 클러치 피스톤(100)이 2개(110,120) 도시되어 있는데, 피스톤 리테이너(80)의 직근 전방에 배치된 클러치 피스톤(110)에는 화살표 A로 표시된 방향을 따라 유압이 공급되며, 그 전방에 배치된 피스톤(120)에는 화살표 B로 표시된 방향을 따라 유압이 공급된다. 그리고, 공간부(500)에 모인 누유 유체는 화살표 C로 표시된 방향을 따라 배출된다.A clutch boss 200 configured to transmit torque to a clutch located in the automatic transmission is installed, and the clutch boss 200 has hydraulic pressure for operating the clutch piston 110 disposed in front of the piston retainer 80 directly ahead. An inflow passage 300 to be supplied is formed. The inlet flow path 300 is connected to one central portion of the sleeve 210 so that hydraulic pressure is supplied between the piston retainer 80 and the piston 110 in the automatic transmission.
In addition, a seal 400 which prevents leakage of fluid is installed in the sleeve 210 provided at the lower portion of the inflow passage 300, and is spaced through the seal 400 due to a hydraulic pressure increase during operation of the clutch piston 110. When the fluid is leaked to 500, a discharge flow path 700 for discharging the leaked fluid from the space 500 is provided. In particular, the discharge passage 700 is provided horizontally on the rear cover 600 to be close to the outer circumferential surface of the sleeve 210 is connected between the rear cover 600 and the piston retainer 80.
For reference, two clutch pistons 100 are illustrated in FIG. 2, 110 and 120. The clutch piston 110 disposed in front of the piston retainer 80 in front of the piston retainer 80 is supplied with hydraulic pressure along the direction indicated by arrow A. The piston 120 disposed in front of it is supplied with hydraulic pressure along the direction indicated by the arrow B. FIG. Then, the leakage fluid collected in the space 500 is discharged along the direction indicated by the arrow C.

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삭제delete

이와 같이, 클러치 피스톤(110)에 유입 유로(300)를 통하여 작동 유압이 공급되면, 그 힘에 의해 도 2에서 볼 때 우측으로 클러치 피스톤(110)이 이동될 수 있게 되는 것이며, 이와 같이 이동하는 피스톤(110)은 도면에서 좌측으로 탄력 지지하도록 설치되어 있는 스프링(130)에 의해 원래의 위치로 복귀할 수 있도록 구성되어 있으며, 상기 스프링(130)은 브래킷(140)에 지지된다.As such, when the operating hydraulic pressure is supplied to the clutch piston 110 through the inflow passage 300, the clutch piston 110 may be moved to the right as viewed in FIG. 2 by the force. The piston 110 is configured to return to its original position by a spring 130 installed to elastically support to the left in the figure, the spring 130 is supported by the bracket 140.

상기와 같이 유입 유로(300)를 따라 작동 유압이 유입되면, 피스톤(110)은 상술한 바와 같이 우측으로 이동하면서 피스톤(120)의 작동부(150)가 클러치의 마찰판(160)을 밀어 클러치를 작동시킨다.When operating hydraulic pressure is introduced along the inflow channel 300 as described above, the piston 110 moves to the right as described above, and the operation unit 150 of the piston 120 pushes the friction plate 160 of the clutch to lift the clutch. It works.

이때, 그 내부의 압력은 증가하게 되고 상기 유입 유로(300)에 유압이 형성되면 상기 씰(400)을 통해 유체가 누유되어 진다.At this time, the pressure inside thereof increases and when the hydraulic pressure is formed in the inflow passage 300, the fluid is leaked through the seal 400.

이렇게, 씰(400)을 통해 누유된 유체는 공간부(500)에 포집되어 지고, 상기 공간부(500)에 포집된 유체가 원활히 배출될 수 있도록 리어커버(600)에 배출 유로(700)가 형성된다.In this way, the fluid leaked through the seal 400 is collected in the space 500, the discharge flow path 700 in the rear cover 600 so that the fluid collected in the space 500 can be smoothly discharged Is formed.

또한, 상기 배출 유로(700)는 상기 슬리브(210) 외측 둘레 면에 근접되게 구성된다.In addition, the discharge passage 700 is configured to be close to the outer circumferential surface of the sleeve 210.

이는 클러치 피스톤(100)의 작동에 따른 압력에 의해 공간부(500)로 누유된 유체를 원활히 배출함과 아울러 원가 및 조립공정을 줄이기 위함이다.This is to smoothly discharge the fluid leaked into the space part 500 by the pressure of the clutch piston 100 and to reduce the cost and the assembly process.

상술한 바와 같이 본 발명에 따른 배출 유로 개선구조를 갖는 자동변속기에 따르면, 슬리브 외측 둘레 면에 근접되게 구성된 배출 유로로 인해 기존의 3번 절곡 형성된 배출 유로를 삭제할 수 있음은 물론 외부와의 밀폐를 위하여 설치된 볼을 추가적으로 삭제할 수 있어 원가 및 조립 공정을 줄일 수 있는 효과와 공간부에 포집된 유체를 원활히 배출할 수 있는 효과가 있다.As described above, according to the automatic transmission having the discharge flow path improving structure according to the present invention, the discharge flow path formed to be close to the outer circumferential surface of the sleeve can be eliminated, and the existing discharge flow path formed by bent three times can be deleted, as well as sealing the outside. In order to remove the installed ball in order to reduce the cost and assembly process and the effect that can smoothly discharge the fluid collected in the space.

Claims (2)

피스톤 리테이너(80)의 직근 전방에 배치된 클러치 피스톤(110)의 작동을 위한 유압이 공급되는 유입유로(300)가 클러치 보스(200)에 형성되고, 유입유로(300)의 하부에 마련된 슬리브(210)에 유체의 누유를 막는 씰(400)이 설치되며, 클러치 피스톤(110)의 작동 중 유압 상승으로 인해 씰(400)을 통해 공간부(500)로 유체가 누유된 경우, 그 누유된 유체를 공간부(500)로부터 배출하기 위한 배출유로(700)가 마련된 배출 유로 개선구조를 갖는 자동변속기로서, 여기서, 배출유로(700)는,An inflow passage 300 for supplying hydraulic pressure for operating the clutch piston 110 disposed in front of the piston retainer 80 is formed in the clutch boss 200, and a sleeve provided below the inflow passage 300. A seal 400 is installed at 210 to prevent leakage of fluid, and when the fluid is leaked to the space 500 through the seal 400 due to the hydraulic rise during operation of the clutch piston 110, the leaked fluid The automatic transmission having a discharge flow path improvement structure provided with a discharge flow path 700 for discharging the space from the space 500, wherein the discharge flow path 700, 상기 슬리브(210)의 외측 둘레면에 근접되게 리어커버(600))상에 수평하게 마련되어 리어커버(600)와 피스톤 리테이너(80) 사이로 연결되는 것을 특징으로 하는 배출 유로 개선구조를 갖는 자동변속기.An automatic transmission having a discharge flow path improving structure provided horizontally on the rear cover (600) close to the outer circumferential surface of the sleeve (210) and connected between the rear cover (600) and the piston retainer (80). 삭제delete
KR1020060047032A 2006-05-25 2006-05-25 Automatic transmission with discharge flow path improving structure Expired - Fee Related KR100792561B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001208097A (en) 2000-01-31 2001-08-03 Jatco Transtechnology Ltd Clutch mechanism for automatic transmission
JP2001304292A (en) 2000-04-24 2001-10-31 General Motors Corp <Gm> Fluid pressure operated piston with air bleed function
JP2003130085A (en) 2001-10-23 2003-05-08 Aisin Aw Co Ltd Automatic transmission clutch device
KR20050029508A (en) * 2003-09-23 2005-03-28 현대자동차주식회사 Multiple disc clutch of auto transmission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001208097A (en) 2000-01-31 2001-08-03 Jatco Transtechnology Ltd Clutch mechanism for automatic transmission
JP2001304292A (en) 2000-04-24 2001-10-31 General Motors Corp <Gm> Fluid pressure operated piston with air bleed function
JP2003130085A (en) 2001-10-23 2003-05-08 Aisin Aw Co Ltd Automatic transmission clutch device
KR20050029508A (en) * 2003-09-23 2005-03-28 현대자동차주식회사 Multiple disc clutch of auto transmission

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