KR100680715B1 - Circulation structure of oil in automatic transmission - Google Patents

Circulation structure of oil in automatic transmission Download PDF

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Publication number
KR100680715B1
KR100680715B1 KR1020050102024A KR20050102024A KR100680715B1 KR 100680715 B1 KR100680715 B1 KR 100680715B1 KR 1020050102024 A KR1020050102024 A KR 1020050102024A KR 20050102024 A KR20050102024 A KR 20050102024A KR 100680715 B1 KR100680715 B1 KR 100680715B1
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oil
oil pump
valve body
automatic transmission
circulation structure
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KR1020050102024A
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Korean (ko)
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황광수
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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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4165—Control of cooling or lubricating

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

An oil circulation structure of automatic transmission is provided to reduce a shape and size of a channel by using a bypass channel between a transmission case and an oil pump. Oil is flowed in through a suction port(30) and provided to a valve body(13) via an oil pump(12). At least portion of the oil provided to the valve body is fed-back to the oil pump. The remaining of the oil fed-back from the valve body to the oil pump is provided to an oil filter(31) through a bypass channel(27) that is branched from a channel connecting the valve body to the oil pump. Using the bypass channel between the transmission case and the oil pump reduces a shape and size of the channel.

Description

자동변속기내 오일 순환구조{Circulation structure of oil in automatic transmission}Circulation structure of oil in automatic transmission

도 1은 종래의 자동변속기내 오일 순환구조를 개략적으로 나타낸 블록도이다.1 is a block diagram schematically showing an oil circulation structure in a conventional automatic transmission.

도 2는 본 발명의 일실시예에 따른 오일 순환구조를 갖는 자동변속기의 개략도이다.2 is a schematic diagram of an automatic transmission having an oil circulation structure according to an embodiment of the present invention.

도 3은 본 발명의 일실시예에 따른 오일 순환구조를 개략적으로 나타낸 블록도이다.3 is a block diagram schematically showing an oil circulation structure according to an embodiment of the present invention.

※도면의 주요부분에 대한 부호의 설명※※ Explanation of symbols about main part of drawing ※

10, 30: 유입포트 11, 31: 오일필터10, 30: inlet port 11, 31: oil filter

12: 오일펌프 13: 밸브바디12: oil pump 13: valve body

본 발명은 자동변속기내 오일순환 구조에 관한 것으로, 보다 상세하게는 컴팩트하고 경량화된 자동변속기의 구성이 가능하도록 자동변속기 내 구성 부품간 유로연결 구조 및 배치가 개선된 오일순환 구조에 관한 것이다.The present invention relates to an oil circulation structure in an automatic transmission, and more particularly, to an oil circulation structure in which an flow path connection structure and an arrangement between components in an automatic transmission are improved to enable a compact and lightweight automatic transmission.

통상적으로 자동변속기, 특히 FF방식의 자동변속기는 엔지룸 내의 공간제약이 많기 때문에 컴팩트하고 경량화된 변속기 구조가 요구되며, 이에 따라 변속기 내부의 부품간의 컴팩트한 배치를 위한 기술개발의 요구가 높다.In general, an automatic transmission, especially an FF type automatic transmission, requires a compact and lightweight transmission structure because of a lot of space constraints in the engine room. Accordingly, there is a high demand for technology development for a compact arrangement between components inside the transmission.

그러나 종래 자동변속기의 경우 변속기 내 각 구성요소 간의 유로연결 상의 문제로 인하여 밸브바디가 차량 전방에 경사 조립되어 변속기 전체의 크기 및 중량이 커지고, 오일 순환구조에 있어 오일펌프로 공급되는 라인의 굴곡이 심하고 길기 때문에 오일순환의 효율성이 떨어진다는 문제점이 있었다.However, in the case of the conventional automatic transmission, the valve body is inclined and assembled in front of the vehicle due to problems in the flow path connection between the components in the transmission, thereby increasing the size and weight of the entire transmission, and the bending of the line supplied to the oil pump in the oil circulation structure. There was a problem that the efficiency of the oil circulation is poor because it is severe and long.

도 1을 참조하여 종래 자동변속기의 오일 순환구조를 살펴본다.With reference to Figure 1 looks at the oil circulation structure of the conventional automatic transmission.

도 1에 도시된 바와 같이 자동변속기 내부의 오일순환은, 변속기 내부의 최하단부 중앙에 위치한 흡입포트(10)를 통하여 오일이 유입되어 제1유로(1), 제2유로(2) 및 제3유로(3)를 거쳐 오일펌프(12)로 공급되며, 오일펌프(12)에서 유압이 형성된 오일은 밸브바디(13)와 제5유로(5)를 통하여 변속기 내의 각 요소로 공급되는 구조로 이루어져 있다. 이때 밸브바디 내의 레귤레이터 밸브에서 쓰고 남은 오일은 다시 제6유로(6), 제2유로(2) 및 제3유로(3)를 통하여 오일펌프로 공급되며, 밸브바디(13)에서 각 요소로 보낸 오일은 작동 후 변속기 내부의 아래로 흘러내려 오일필터의 흡입포트(10)로 다시 유입되는 구조로 이루어져 있다.As shown in FIG. 1, the oil circulating in the automatic transmission is introduced into the oil through the suction port 10 located at the center of the lowest end of the transmission, so that the first flow path 1, the second flow path 2, and the third flow path flow through the suction port 10. (3) is supplied to the oil pump 12, the oil is formed in the oil pump 12 has a structure that is supplied to each element in the transmission through the valve body 13 and the fifth flow path (5). . At this time, the remaining oil used in the regulator valve in the valve body is again supplied to the oil pump through the sixth passage (6), the second passage (2) and the third passage (3), and sent to each element from the valve body (13) After the operation, the oil flows down the inside of the transmission and is configured to flow back into the suction port 10 of the oil filter.

그러나 제1 내지 제5유로(1 내지 5)는 변속기 케이스에 설치되어 긴유로를 형성하고 있어 변속기의 크기가 커질 뿐만 아니라 밸브바디(13)로부터 회송되는 오일은 직접 오일펌프(12)로 공급되는 구조로 이루어져 있어 유로의 직경이 커지는 등 앞서 언급한 문제점을 발생시킨다.However, the first to fifth flow passages (1 to 5) are installed in the transmission case to form a long flow passage so that the size of the transmission is not only large but the oil returned from the valve body 13 is directly supplied to the oil pump 12. The structure causes the above-mentioned problems such as the diameter of the flow path to become large.

본 발명은 상기한 바와 같은 자동변속기 내 구성 부품간 유로연결 구조 및 배치 상의 문제점을 해결하여 컴팩트하고 경량화된 자동변속기의 구성이 가능하도록 한 자동변속기내 오일순환 구조를 제공함을 목적으로 한다.It is an object of the present invention to provide an oil transmission structure in an automatic transmission that enables a configuration of a compact and lightweight automatic transmission by solving a problem in the flow path connection structure and arrangement between components in the automatic transmission as described above.

상기의 목적을 달성하기 위한 본 발명에 따른 자동변속기내 오일순환 구조는, 밸브바디로부터 오일펌프로 회송되는 오일 중 적어도 일부는 밸브바디와 오일펌프를 연결하는 유로로부터 분기된 우회유로를 통하여 오일필터 측으로 공급되도록 하는 것을 특징으로 한다.The oil circulation structure in the automatic transmission according to the present invention for achieving the above object, at least some of the oil returned from the valve body to the oil pump through the bypass passage branched from the flow path connecting the valve body and the oil pump Characterized in that to be supplied to the side.

이때, 우회유로는 회동 가능하게 설치하는 것이 바람직하다. 이에 의해 오일필터 또는 오일펌프로 오일이 공급될 수 있어 변속기내 오일의 순환성이 향상되며, 오일의 분산 공급에 의해 변속기 케이스의 유로의 크기 축소 및 케이스의 중량을 감소시킬 수 있다.At this time, it is preferable to install the bypass flow path so that rotation is possible. As a result, oil may be supplied to the oil filter or the oil pump, thereby improving circulation of oil in the transmission, and reducing the size of the flow path of the transmission case and reducing the weight of the case by distributing oil.

또한 오일필터는 오일펌프의 직하부에 설치되도록 하며, 오일필터와 오일펌프를 연결하는 유로 및 우회유로는 변속기 케이스와 오일펌프 사이의 공간에 설치하는 것이 바람직하다. 변속기 내 공간활용을 극대화시키고 변속기의 크기를 감소시키기 위함이다.In addition, the oil filter is to be installed directly below the oil pump, it is preferable that the flow path and the bypass flow path connecting the oil filter and the oil pump is installed in the space between the transmission case and the oil pump. This is to maximize space utilization in the transmission and reduce the size of the transmission.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 따른 자동변속기내 오일순환 구조에 대하여 살펴본다. Hereinafter, an oil circulation structure in an automatic transmission according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

실시예에 따르면 도 2 및 도 3에서 볼 수 있는 바와 같이, 밸브바디(13)는 차량 전방에 수직하게 배치되며 오일펌프(12)의 직하부에 여과기능을 갖는 오일필터(31)가 배치된다. 오일필터(31)의 하부에는 오일이 유입되는 유입포트(30)가 마련된다.2 and 3, the valve body 13 is disposed perpendicular to the front of the vehicle, and an oil filter 31 having a filtration function is disposed directly below the oil pump 12. . The lower portion of the oil filter 31 is provided with an inlet port 30 through which oil is introduced.

종래와 달리, 유입포트(30)를 통하여 오일필터(31)로 공급된 오일은 변속기 케이스와 오일펌프(12) 사이의 공간에 형성된 제1유로(21)를 통하여 오일펌프(12)로 직접 공급된다.Unlike the related art, the oil supplied to the oil filter 31 through the inflow port 30 is directly supplied to the oil pump 12 through the first flow passage 21 formed in the space between the transmission case and the oil pump 12. do.

오일펌프(12)에서 유압이 형성된 오일은 제2유로(22)를 통하여 밸브바디(12)으로 공급되며, 다시 제3유로(2)를 통하여 변속기의 각 요소로 공급된다.The oil in which the hydraulic pressure is formed in the oil pump 12 is supplied to the valve body 12 through the second flow passage 22, and is again supplied to each element of the transmission through the third flow passage 2.

한편, 밸브바디(13) 내의 레귤레이터 밸브(미도시)에서 쓰고 남은 오일은 다시 제4, 5, 6유로(24, 25, 26)를 통하여 오일펌프(12)로 공급되는데, 제5유로(25)에는 오일필터(31) 측으로 연결되는 제7유로(27)가 형성된다. 이때 밸브바디(13)로부터 회송되는 오일은 이미 여과가 된 오일이므로, 제7유로(27)가 연결되는 오일필터(31) 측은 반드시 유입포트(30)로부터 공급되는 오일과 같이 여과기능을 갖출 필요는 없다. 제7유로(27)는 제1유로(21)와 마찬가지로 변속기 케이스와 오일펌프(12) 사이의 공간에 회동 가능하게 형성된다. 즉, 필요시 오일순환성을 향상시키기 위하여 상기 제7유로(27)의 회동에 의해서 순환되는 오일은 오일필터(31) 또는 오일펌프(12)로 공급될 수 있도록 구성된다.On the other hand, the oil remaining in the regulator valve (not shown) in the valve body 13 is supplied to the oil pump 12 through the fourth, fifth, sixth channels 24, 25, and 26 again, and the fifth passage 25 ) Is formed a seventh flow path 27 connected to the oil filter 31 side. At this time, since the oil returned from the valve body 13 is already filtered oil, the oil filter 31 side to which the seventh flow path 27 is connected must be equipped with a filtration function like the oil supplied from the inlet port 30. There is no. Like the first flow passage 21, the seventh flow passage 27 is rotatably formed in the space between the transmission case and the oil pump 12. That is, if necessary, the oil circulated by the rotation of the seventh flow path 27 to improve the oil circulation is configured to be supplied to the oil filter 31 or the oil pump 12.

상술한 바와 같은 구조로 이루어진 자동변속기내 오일순환 구조에 따르면, 변속기 케이스와 오일펌프 사이의 공간을 활용한 유로의 배치와 공급되는 오일의 유량을 분산시킬 수 있으므로 유로의 형태 및 크기 축소 뿐만 아니라 케이스의 중량을 감소시킬 수 있다.According to the oil circulation structure in the automatic transmission having the structure as described above, it is possible to disperse the arrangement of the flow path utilizing the space between the transmission case and the oil pump and the flow rate of the supplied oil, as well as reducing the shape and size of the flow path It is possible to reduce the weight of.

Claims (3)

흡입포트(30)를 통하여 유입된 오일이 오일펌프(12)를 거쳐 밸브바디(13)로 공급되며, 밸브바디(13)로 공급된 오일 중 적어도 일부는 오일펌프(12)로 회송되는 자동변속기내 오일순환구조에 있어서,The oil introduced through the suction port 30 is supplied to the valve body 13 via the oil pump 12, and at least some of the oil supplied to the valve body 13 is returned to the oil pump 12. In the oil circulation structure, 밸브바디(13)로부터 오일펌프(12)로 회송되는 오일 중 적어도 일부는 밸브바디(13)와 오일펌프(12)를 연결하는 유로로부터 분기된 우회유로(27)를 통하여 오일필터(31) 측으로 공급되도록 하는 것을 특징으로 하는 자동변속기내 오일순환구조.At least some of the oil returned from the valve body 13 to the oil pump 12 passes through the bypass passage 27 branched from the flow path connecting the valve body 13 and the oil pump 12 to the oil filter 31. Oil circulation structure in an automatic transmission, characterized in that to be supplied. 제1항에 있어서,The method of claim 1, 상기 우회유로(27)는 오일필터(31)로부터 오일펌프(12)중 선택된 어느 하나로 로 오일을 공급할 수 있도록 회동 가능하게 설치된 것을 특징하는 자동변속기내 오일 순환구조.The bypass passage (27) is an oil circulation structure in an automatic transmission, characterized in that it is rotatably installed to supply the oil to any one selected from the oil filter (31) from the oil pump (12). 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 오일필터(31)는 오일펌프(12)의 직하부에 설치되며, 오일필터(31)와 오일펌프(12)를 연결하는 유로(1) 및 우회유로(27)은 변속기 케이스와 오일펌프 사이의 공간에 설치된 것을 특징으로 하는 자동변속기내 오일 순환구조.The oil filter 31 is installed directly below the oil pump 12, and the oil passage 31 and the bypass passage 27 connecting the oil filter 31 and the oil pump 12 are disposed between the transmission case and the oil pump. Oil circulation structure in an automatic transmission, characterized in that installed in the space of the.
KR1020050102024A 2005-10-27 2005-10-27 Circulation structure of oil in automatic transmission KR100680715B1 (en)

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