KR20200022099A - electronic-Limited Slip Differentia for Automotive - Google Patents

electronic-Limited Slip Differentia for Automotive Download PDF

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Publication number
KR20200022099A
KR20200022099A KR1020180097805A KR20180097805A KR20200022099A KR 20200022099 A KR20200022099 A KR 20200022099A KR 1020180097805 A KR1020180097805 A KR 1020180097805A KR 20180097805 A KR20180097805 A KR 20180097805A KR 20200022099 A KR20200022099 A KR 20200022099A
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South Korea
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lubricating oil
bearing
limiting device
temperature environment
differential limiting
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KR1020180097805A
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Korean (ko)
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KR102094876B1 (en
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이동윤
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현대위아 주식회사
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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
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
    • 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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • 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
    • F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
    • 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
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0469—Bearings or seals
    • F16H57/0471—Bearing

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

Abstract

The present invention relates to an electronic differential limiting device for automobiles, and specifically, to an electronic differential limiting device for automobiles which maximizes lubrication performance in a low-temperature environment when driving by forming a lubricant inlet on the front of a bearing. According to the electronic differential limiting device for automobiles, the lubricant inlet to which the lubricant is supplied is formed in the front of the bearing so that the temperature of the lubricant can be raised in a low temperature environment by heat generated during rotation of the bearing to maximize the lubricating performance of the rotating components.

Description

자동차용 전자식 차동제한장치{electronic-Limited Slip Differentia for Automotive}Electronic-Limited Slip Differentia for Automotive

본 발명은 자동차용 전자식 차동제한장치에 관한 것으로서, 특히 베어링 앞 부분에 윤활유 유입구를 형성하여 구동시 저온 환경 상태에서 윤활성능을 극대화하는 자동차용 전자식 차동제한장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic differential limiting device for automobiles, and more particularly, to an electronic differential limiting device for automobiles in which a lubricating oil inlet is formed in a front part of a bearing to maximize lubrication performance in a low temperature environment during driving.

일반적으로 자동차에는 엔진에서 발생한 동력을 차륜까지 전달하는 장치. 클러치, 변속기, 중간 변속기, 추진축, 종감속 장치, 차동기, 전자식 차동제한장치 등으로 구성되는 동력 전달 장치(Power Transmission Device, Transmission) 즉, 구동계가 사용된다.In general, a vehicle that transmits the power generated by the engine to the wheel. A power transmission device (ie, a transmission system) consisting of a clutch, a transmission, an intermediate transmission, a propulsion shaft, a longitudinal reduction gear, a differential, an electronic differential limiter, and the like, is used.

그러나, 종래의 자동차용 전자식 차동제한장치는 저온 환경에서 윤활유의 점성이 높아 유동성이 저하되어 윤활성능이 좋지 않아 마모 발생과 내구성 저하를 유발하는 문제점이 있었다.However, the conventional electronic differential limiter for automobiles has a problem of causing high wear viscosity and poor durability due to poor lubrication performance due to high viscosity of lubricating oil in a low temperature environment.

또, 저온 환경 상태에서 윤활유의 윤활성능을 높일 경우 고온 환경에서는 윤활유의 추가 온도 상승을 유발시키기 때문에 윤활유의 변질에 의한 윤활 성능을 상실시키는 문제점이 있다.In addition, when the lubricating performance of the lubricating oil is increased in a low temperature environment, the lubricating oil loses its lubricating performance due to deterioration of the lubricating oil because it causes an additional temperature increase of the lubricating oil in the high temperature environment.

특허 제10-1396561호Patent No. 10-1396561

이에, 본 발명은 상기한 문제점을 해결하기 위해 안출된 것으로서, 본 발명의 목적은 저온 환경에서 윤활유의 윤활성능을 극대화함과 동시에 고온 환경에서 윤활유 온도의 상승을 억제하여 윤활유의 변질을 예방하는 자동차용 전자식 차동제한장치를 제공하는 것이다.Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to maximize the lubrication performance of lubricating oil in low temperature environment and at the same time to suppress the rise of lubricating oil temperature in high temperature environment to prevent the deterioration of lubricating oil To provide an electronic differential limiting device.

상기한 목적을 달성하기 위해 본 발명은 자동차용 전자식 차동제한장치에 있어서, 윤활유가 공급되는 윤활유 유입구 위치를 베어링의 앞 부분에 형성하여 베어링의 회전동작시 발생하는 열기에 의해 저온 환경에서 윤활유의 온도가 상승되도록 하여 회전 부품의 윤활성능을 극대화하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides an electronic differential limiting device for automobiles, in which a lubricating oil inlet position is provided at a front part of a bearing to which lubricating oil is supplied. It is characterized by maximizing the lubrication performance of the rotating parts to be raised.

상기 윤활유 유입구와 대향하는 베어링의 타 일 측 앞 부분에는 윤활유 배출구가 형성되는 것을 특징으로 한다.Lubricating oil outlet is formed on the front side of the other side of the bearing facing the lubricating oil inlet.

상기 윤활유 유입구를 통해 공급되는 윤활유는 저온 환경에서는 점도가 높기 때문에 이동이 빠르지 않아 정체 현상 유발로 인해 이동로를 거쳐 베어링의 내륜과 외륜을 통과하도록 하는 것을 특징으로 한다.Since the lubricating oil supplied through the lubricating oil inlet has a high viscosity in a low temperature environment, the lubricating oil is not fast enough to pass through the inner and outer rings of the bearing through the moving path due to the congestion.

상기 윤활유 유입구를 통해 공급되는 윤활유는 고온 환경에서는 점도가 낮기 때문에 빠르게 이동하므로 정체 현상이 없어 이동로를 거쳐 베어링의 내륜과 외륜 사이로 유동하지 못하고 외륜 바깥쪽을 통과하도록 하는 것을 특징으로 한다.Since the lubricating oil supplied through the lubricating oil inlet moves quickly because the viscosity is low in a high temperature environment, there is no congestion, and thus the lubricating oil may not flow between the inner and outer rings of the bearing and pass through the outer ring outside through the moving path.

상기 윤활유 배출구는 윤활유 유입구에 비해 크게 형성되는 것을 특징으로 한다.The lubricating oil outlet is larger than the lubricating oil inlet.

또, 본 발명은 전자식 차동제한장치를 장착한 자동차를 더 제공한다.The present invention further provides an automobile equipped with an electronic differential limiting device.

이상에서와 같은 본 발명은 저온 환경에서는 윤활성능을 극대화 하고, 고온 환경에서는 윤활유의 변질을 예방하여 제품의 내구성 향상을 이루는 효과가 있다.The present invention as described above has the effect of maximizing the lubrication performance in a low temperature environment, to improve the durability of the product by preventing the deterioration of the lubricating oil in a high temperature environment.

도 1은 본 발명의 바람직한 실시예에 따른 자동차용 전자식 차동제한장치의 요부 단면 상태를 개략적으로 나타낸 도면이다.
도 2는 본 발명에 따른 자동차용 전자식 차동제한장치의 외부 상태를 개략적으로 나타낸 도면이다.
도 3은 본 발명의 바람직한 실시예에 따른 자동차용 전자식 차동제한장치의 윤활유가 이동하는 상태를 개략적으로 나타낸 도면이다.1 is a view schematically showing the main cross-sectional state of the electronic differential limiting device for a vehicle according to a preferred embodiment of the present invention.
2 is a view schematically showing an external state of the electronic differential limiting device for a vehicle according to the present invention.
3 is a view schematically showing a state in which the lubricating oil of the electronic differential limiting device for a vehicle according to the preferred embodiment of the present invention moves.

이하, 본 발명에 따른 바람직한 실시예를 첨부된 도면에 의거하여 보다 구체적으로 설명한다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

여기서, 하기의 모든 도면에서 동일한 기능을 갖는 구성요소는 동일한 참조부호를 사용하여 반복적인 설명은 생략하며, 아울러 후술 되는 용어들은 본 발명에서의 기능을 고려하여 정의된 것으로서, 이것은 고유의 통용되는 의미로 해석되어야 함을 명시한다.Here, the components having the same function in all the drawings below are repeated descriptions using the same reference numerals, and the following terms are defined in consideration of functions in the present invention, which is a unique commonly used meaning It should be interpreted as.

도 1 내지 도 3에 도시된 바와 같이 본 발명은 자동차용 전자식 차동제한장치(100)에 윤활유가 공급되는 윤활유 유입구(110) 위치를 베어링(140)의 앞 부분에 형성하여 베어링(140)의 회전동작시 발생하는 열기에 의해 저온 환경에서 윤활유의 온도가 상승되도록 하여 회전 부품의 윤활성능을 극대화하도록 한다.As shown in FIGS. 1 to 3, the present invention forms the position of the lubricant oil inlet 110 in which the lubricant is supplied to the electronic differential limiting device 100 for a vehicle at the front of the bearing 140 to rotate the bearing 140. By the heat generated during operation, the temperature of the lubricating oil is increased in a low temperature environment to maximize the lubrication performance of the rotating parts.

이를 위해 상기 윤활유 유입구(110)는 베어링(140)의 바로 앞 부분 일 측에 형성되는 것이 바람직하다.To this end, the lubricating oil inlet 110 is preferably formed at one side immediately in front of the bearing 140.

예컨대, 상기 윤활유 유입구(110)의 위치를 베어링(140)의 바로 앞 부분 일 측에 형성하여 공급되는 윤활유가 베어링(140)을 통과하면서 온도가 상승되도록 한다.For example, the position of the lubricating oil inlet 110 is formed at one side immediately in front of the bearing 140 such that the temperature of the lubricating oil is increased while passing through the bearing 140.

이에 따라, 겨울 또는 온도가 낮은 저온 환경에서 차량을 운행하거나 시동을 걸게 되면 차량용 전자식 차동제한장치(100)로 공급되는 윤활유는 상기 윤활유 유입구(110)로 유입된 후 윤활유 이동로(120)를 거쳐 회전동작에 의해 발열하는 베어링(140)을 통과하면서 온도가 상승하여 점도가 낮아져 윤활 성능을 극대화할 수 있다.Accordingly, when driving or starting a vehicle in a winter or low temperature environment, the lubricating oil supplied to the vehicle electronic differential limiter 100 flows into the lubricating oil inlet 110 and then passes through the lubricating oil moving path 120. As the temperature rises while passing through the bearing 140 that generates heat by the rotation operation, the viscosity may be lowered to maximize lubrication performance.

또, 상기 윤활유 유입구(110)와 대향하는 베어링(140)의 타 일측 앞 부분에는 윤활유 배출구(130)가 형성된다.In addition, a lubricant oil outlet 130 is formed at the front side of the other side of the bearing 140 facing the lubricant oil inlet 110.

즉, 상기 베어링(140)의 바로 앞 부분 일 측에 형성되는 윤활유 유입구(110)를 통해 유입된 윤활유는 이동로(120)를 거쳐 베어링(140)을 통과한 후, 윤활유 배출구(130)를 통해 배출되어 내부 회전 부품 각 부분으로 확산되면서 윤활 기능을 발휘하게 된다.That is, the lubricating oil introduced through the lubricating oil inlet 110 formed at one side immediately in front of the bearing 140 passes through the bearing 140 through the moving path 120, and then through the lubricating oil outlet 130. As it is discharged, it diffuses to each part of the internal rotating parts to perform a lubrication function.

또한, 상기 윤활유 유입구(110)를 통해 공급되는 윤활유는 저온 환경에서는 점도가 높기 때문에 이동이 빠르지 않아 정체 현상 유발로 인해 이동로(120)를 거쳐 베어링(140)의 내륜(141)과 외륜(142)을 통과하게 된다.In addition, since the lubricating oil supplied through the lubricating oil inlet 110 has a high viscosity in a low temperature environment, the lubricating oil is not fast, and thus, due to congestion, the inner ring 141 and the outer ring 142 of the bearing 140 are moved through the moving path 120. Will pass).

이와 같이, 상기 윤활유의 점도가 높은 저온 환경에서는 유동성이 떨어지기 때문에 회전동작으로 인해 발열하는 베어링(140)의 내륜(141)과 외륜(142)을 반드시 통과하도록 함으로써 윤활유의 온도를 상승시켜 윤활성능을 향상시키게 된다.As such, since the fluidity is poor in a low temperature environment where the viscosity of the lubricating oil is high, the temperature of the lubricating oil is increased by passing the inner ring 141 and the outer ring 142 of the bearing 140 which generate heat due to the rotational motion to increase the lubricating performance. Will improve.

반대로, 상기 윤활유 유입구(110)를 통해 공급되는 윤활유는 고온 환경에서는 점도가 낮기 때문에 빠르게 이동하므로 정체 현상이 없어 윤활유 이동로(120)를 거쳐 베어링(140)의 내륜(141)과 외륜(142) 사이로 유동하지 못하고 외륜(142) 바깥쪽을 통과하게 된다.On the contrary, the lubricating oil supplied through the lubricating oil inlet 110 moves quickly because the viscosity is low in a high temperature environment, so there is no stagnation phenomenon. Therefore, the inner ring 141 and the outer ring 142 of the bearing 140 pass through the lubricating oil moving path 120. It does not flow between the outer ring 142 passes through the outside.

이와 같이, 상기 윤활유의 점도가 낮은 고온 환경에서는 유동성이 빠르기 때문에 회전동작으로 인해 발열하는 베어링(140)의 내륜(141)과 외륜(142)을 통과하지 않도록 함으로써 윤활유의 추가 온도 상승을 최소화하거나 방지하여 윤활유의 변질은 막고 윤활성능은 향상시킬 수 있다.As such, since the fluidity is high in a high temperature environment where the viscosity of the lubricant is low, the additional temperature rise of the lubricant is minimized or prevented by not passing through the inner ring 141 and the outer ring 142 of the bearing 140 that generate heat due to the rotational operation. This prevents deterioration of lubricating oil and improves lubricating performance.

그리고 상기 윤활유 배출구(130)는 윤활유 유입구(110)에 비해 크게 형성되는 것이 바람직하다.In addition, the lubricating oil outlet 130 is preferably larger than the lubricating oil inlet 110.

이에 따라, 저온 환경과 고온 환경에서 윤활유의 흐름을 좀 더 원활하게 제어할 수 있다.Accordingly, the flow of the lubricating oil can be more smoothly controlled in the low temperature environment and the high temperature environment.

예컨대, 상기 윤활유 배출구(130)의 크기가 윤활유 유입구(110)에 비해 크게 형성됨에 따라 저온 환경에서는 크기가 작은 윤활유 유입구(110)를 통해 유입되는 윤활유는 점도가 높아 유동성이 떨어지기 때문에 윤활유 이동로(120)를 거쳐 베어링(140)의 내륜(141)과 외륜(142) 사이로 느리게 유동하면서 온도 상승이 더욱더 원활하게 이루어지게 된다.For example, as the size of the lubricating oil outlet 130 is larger than that of the lubricating oil inlet 110, the lubricating oil introduced through the small lubricating oil inlet 110 in a low temperature environment has a high viscosity and thus has low fluidity, so that the lubricating oil movement path Slowly flowing between the inner ring 141 and the outer ring 142 of the bearing 140 through the 120 is the temperature rise is made more smoothly.

반대로, 고온 환경에서는 윤활유의 점도가 낮아 유동성이 빠르기 때문에 윤활유 이동로(120)를 거쳐 베어링(140)의 내륜(141)과 외륜(142) 사이로 유입될 시간도 없이 외륜(142)의 바깥쪽을 통과하여 윤활유 유입구(110)에 비해 크기가 큰 윤활유 배출구(130)를 통해 빠르게 배출되므로 고온에 의한 윤활유의 변질을 최소화하거나 예방할 수 있다.On the contrary, in the high temperature environment, since the viscosity of the lubricant is low and the fluidity is fast, the outside of the outer ring 142 is not passed through the lubricant moving path 120 without any time to flow between the inner ring 141 and the outer ring 142 of the bearing 140. Passes through the lubricating oil outlet 130 having a larger size than the lubricating oil inlet 110, so that it is possible to minimize or prevent deterioration of the lubricating oil due to high temperature.

즉, 상기 윤활유 유입구(110)와 윤활유 배출구(130)의 크기를 동일하게 하거나 윤활유 유입구(110)의 크기를 윤활유 배출구(130)의 크기에 비해 크게 하는 것보다 윤활유 배출구(130)의 크기를 윤활유 유입구(110)의 크기에 비해 크게 하는 것이 저온 환경과 고온 환경에서 윤활유의 흐름을 좀 더 원활하게 제어할 수 있다.That is, the size of the lubricating oil outlet 130 is greater than the same size of the lubricating oil inlet 110 and the lubricating oil outlet 130 or the size of the lubricating oil inlet 110 is larger than that of the lubricating oil outlet 130. Increasing the size of the inlet 110 may smoothly control the flow of the lubricant in a low temperature environment and a high temperature environment.

또, 본 발명은 상기 전자식 차동제한장치(100)를 장착한 자동차(미도시)를 더 제공한다.In addition, the present invention further provides a vehicle (not shown) equipped with the electronic differential limiting device 100.

상기와 같이 구성된 본 발명의 작용 상태를 설명하면 다음과 같다.Referring to the working state of the present invention configured as described above are as follows.

먼저, 본 발명에 따른 전자식 차동제한장치(100)가 장착된 자동차(미도시)를 운행하게 되면 상기 전자식 차동제한장치(100)가 동작하게 된다.First, when the vehicle (not shown) equipped with the electronic differential limiter 100 according to the present invention is driven, the electronic differential limiter 100 operates.

그리고 저온 환경에서 상기 윤활유 유입구(110)를 통해 윤활유가 공급되면 점도가 높기 때문에 이동이 빠르지 않아 정체 현상 유발로 인해 이동로(120)를 거쳐 발열하는 베어링(140)의 내륜(141)과 외륜(142)을 통과하게 되므로 윤활유는 온도가 상승되어 구동계(100) 회전 샤프트를 포함하는 회전 부품의 윤활성능을 향상시키게 된다.When the lubricating oil is supplied through the lubricating oil inlet 110 in a low temperature environment, since the viscosity is high, the movement is not fast, and thus, the inner ring 141 and the outer ring (heating) of the bearing 140 that generate heat through the moving path 120 due to congestion. Since the lubricating oil passes through 142, the temperature is increased to improve the lubricating performance of the rotating parts including the rotating shaft of the drive system 100.

반대로, 고온 환경에서는 상기 윤활유 유입구(110)를 통해 윤활유가 공급되면 점도가 낮아 유동성이 빠르기 때문에 윤활유 이동로(120)를 거쳐 베어링(140)의 내륜(141)과 외륜(142) 사이로 유입될 시간도 없이 외륜(142)의 바깥쪽을 통과하여 윤활유 배출구(130)를 통해 빠르게 배출되어 구동계(100) 회전 샤프트를 포함하는 회전 부품의 윤활성능을 향상시키게 된다.On the contrary, in the high temperature environment, when the lubricating oil is supplied through the lubricating oil inlet 110, the viscosity is low, so the fluidity is fast, so that the time to be introduced between the inner ring 141 and the outer ring 142 of the bearing 140 through the lubricating oil moving path 120. Without passing through the outside of the outer ring 142 is quickly discharged through the lubricating oil outlet 130 to improve the lubrication performance of the rotating component including the drive shaft 100, the rotating shaft.

이때, 상기 윤활유는 베어링(140)의 내륜(141)과 외륜(142) 사이로 유입되지 않기 때문에 고온에 의한 윤활유의 변질을 최소화하거나 예방할 수 있다.At this time, since the lubricating oil does not flow between the inner ring 141 and the outer ring 142 of the bearing 140, it is possible to minimize or prevent deterioration of the lubricating oil due to high temperature.

따라서 본 발명에 따른 자동차용 전자식 차동제한장치는 이와 같은 동작을 통해 저온 환경에서는 윤활유의 온도를 상승시켜 원활한 윤활성능을 이루도록 하고, 고온 환경에서는 윤활유가 발열하는 베어링의 내부로 통과하지 않고 바깥쪽으로 신속히 배출되도록 함으로써, 고온으로 인한 윤활유의 변질을 최소화하거나 예방하여 자동차용 전자식 차동제한장치의 성능향상과 내구성 향상을 이룰 수 있는 것이다.Therefore, the electronic differential limiting device for automobiles according to the present invention achieves smooth lubrication performance by increasing the temperature of the lubricating oil in such a low temperature environment, and in such a high temperature environment, the lubricating oil quickly passes outward without passing into the inside of the bearing that generates heat. By discharging, it is possible to minimize or prevent deterioration of the lubricating oil due to high temperature, thereby improving performance and durability of the electronic differential limiting device for a vehicle.

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지로 치환, 변형 및 균등한 타 실시예로의 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 있어서 명백할 것이다.The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes to other embodiments may be made without departing from the spirit and scope of the present invention. It will be apparent to those skilled in the art to which the invention pertains.

100 : 자동차용 전자식 차동제한장치 110 : 윤활유 유입구
120 : 이동로 130 : 윤활유 배출구
140 : 베어링 141 : 내륜
142 : 외륜100: automotive electronic differential limiting device 110: lubricating oil inlet
120: moving path 130: lubricating oil outlet
140: bearing 141: inner ring
142: outer ring

Claims (6)

자동차용 전자식 차동제한장치에 있어서,
윤활유가 공급되는 윤활유 유입구 위치를 베어링의 앞 부분에 형성하여 베어링의 회전동작시 발생하는 열기에 의해 저온 환경에서 윤활유의 온도가 상승되도록 하여 회전 부품의 윤활성능을 극대화하는 것을 특징으로 하는 자동차용 전자식 차동제한장치.In the automotive electronic differential limiter,
The location of the lubricating oil inlet in which the lubricating oil is supplied is formed in the front part of the bearing to maximize the lubricating performance of the rotating parts by allowing the temperature of the lubricating oil to rise in the low temperature environment due to the heat generated during the rotation of the bearing. Differential limiting device. 제1항에 있어서,
상기 윤활유 유입구와 대향하는 베어링의 타 일 측 부분 앞 부분에는 윤활유 배출구가 형성되는 것을 특징으로 하는 자동차용 전자식 차동제한장치.The method of claim 1,
Electronic differential limiting device for a vehicle, characterized in that the lubricating oil outlet is formed in front of the other side portion of the bearing facing the lubricating oil inlet. 제2항에 있어서,
상기 윤활유 유입구를 통해 공급되는 윤활유는 저온 환경에서는 점도가 높기 때문에 이동이 빠르지 않아 정체 현상 유발로 인해 이동로를 거쳐 베어링의 내륜과 외륜을 통과하도록 하는 것을 특징으로 하는 자동차용 전자식 차동제한장치.The method of claim 2,
The lubricating oil supplied through the lubricating oil inlet has a high viscosity in a low temperature environment, so the movement is not fast, and the electronic differential limiting device for a vehicle is characterized in that it passes through the inner and outer rings of the bearing through the moving path due to congestion. 제2항에 있어서,
상기 윤활유 유입구를 통해 공급되는 윤활유는 고온 환경에서는 점도가 낮기 때문에 빠르게 이동하므로 정체 현상이 없어 이동로를 거쳐 베어링의 내륜과 외륜 사이로 유동하지 못하고 외륜 바깥쪽을 통과하도록 하는 것을 특징으로 하는 자동차용 전자식 차동제한장치.The method of claim 2,
The lubricating oil supplied through the lubricating oil inlet moves quickly because the viscosity is low in a high temperature environment, so there is no congestion so that the lubricating oil does not flow between the inner and outer rings of the bearing and passes through the outside of the outer ring. Differential limiting device. 제2항에 있어서,
상기 윤활유 배출구는 윤활유 유입구에 비해 크게 형성되는 것을 특징으로 하는 자동차용 전자식 차동제한장치.The method of claim 2,
The lubricating oil outlet is an electronic differential limiting device for a vehicle, characterized in that formed larger than the lubricating oil inlet. 제1항 내지 제5항 중, 어느 한 항에 기재된 전자식 차동제한장치를 장착한 자동차.An automobile equipped with the electronic differential limiter according to any one of claims 1 to 5.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11230178A (en) * 1998-02-17 1999-08-27 Nippon Seiko Kk Cylindrical roller bearing device
JP2006342890A (en) * 2005-06-09 2006-12-21 Fuji Heavy Ind Ltd Differential device
JP2013011302A (en) * 2011-06-29 2013-01-17 Toyota Motor Corp Lubricating structure of differential gear unit
KR101396561B1 (en) 2013-09-09 2014-05-20 주식회사 에코텍 Fuel saving apparatus of car utilizing adjustable preload of bearing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11230178A (en) * 1998-02-17 1999-08-27 Nippon Seiko Kk Cylindrical roller bearing device
JP2006342890A (en) * 2005-06-09 2006-12-21 Fuji Heavy Ind Ltd Differential device
JP2013011302A (en) * 2011-06-29 2013-01-17 Toyota Motor Corp Lubricating structure of differential gear unit
KR101396561B1 (en) 2013-09-09 2014-05-20 주식회사 에코텍 Fuel saving apparatus of car utilizing adjustable preload of bearing

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