KR20050038486A - A by-pass structure of engine oil filter bracket having relief valve in response to temperature - Google Patents

A by-pass structure of engine oil filter bracket having relief valve in response to temperature Download PDF

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Publication number
KR20050038486A
KR20050038486A KR1020030073845A KR20030073845A KR20050038486A KR 20050038486 A KR20050038486 A KR 20050038486A KR 1020030073845 A KR1020030073845 A KR 1020030073845A KR 20030073845 A KR20030073845 A KR 20030073845A KR 20050038486 A KR20050038486 A KR 20050038486A
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South Korea
Prior art keywords
oil
engine oil
temperature
oil filter
engine
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KR1020030073845A
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Korean (ko)
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김용우
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현대자동차주식회사
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Priority to KR1020030073845A priority Critical patent/KR20050038486A/en
Publication of KR20050038486A publication Critical patent/KR20050038486A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
    • F01M2001/1092—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising valves bypassing the filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F01M2011/031—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means

Abstract

본 발명은 엔진오일 필터브래킷의 바이패스 구조에 관한 것으로서, 보다 상세하게는 엔진오일의 온도가 극저온인 경우에는 오일압력이 상승되어 부품파손의 우려가 있는 바 엔진오일을 오일팬으로 바이패스시키고, 엔진오일이 정상온도가 되면 바이패스통로를 차단하여 엔진오일이 오일필터 쪽으로 정상공급되도록 한 온도감응형 릴리프밸브가 설치된 엔진오일 필터브래킷의 바이패스 구조에 관한 것이다.The present invention relates to a bypass structure of the engine oil filter bracket. More specifically, when the temperature of the engine oil is extremely low, the oil pressure is increased to bypass the engine oil to the oil pan. When the engine oil reaches the normal temperature, the bypass structure of the engine oil filter bracket is installed with a temperature-sensitive relief valve that shuts down the bypass passage so that the engine oil is normally supplied to the oil filter.

본 발명에 따른 엔진오일 필터브래킷의 바이패스 구조에 의하면, 엔진오일의 온도변화에 따라 제3바이패스통로가 자동으로 개폐되어 오일온도가 저온일 때는 유입된 오일의 일부를 오일팬으로 바이패스시키고, 엔진오일이 정상온도가 되면 제3바이패스통로를 막아서 오일필터 쪽으로 전량 공급되도록 함으로써 윤활부품이 손상되거나 실링 부위가 파손되어 엔진오일이 누출되는 것을 방지하는 특유의 효과가 있다.According to the bypass structure of the engine oil filter bracket according to the present invention, the third bypass passage is automatically opened and closed in accordance with the temperature change of the engine oil, and when the oil temperature is low, bypasses a part of the oil introduced into the oil pan. When the engine oil reaches the normal temperature, the third bypass passage is blocked to supply the whole amount toward the oil filter, thereby preventing the engine oil from leaking due to damage to the lubrication component or damage to the sealing part.

Description

온도감응형 릴리프밸브가 설치된 엔진오일 필터브래킷의 바이패스구조{A By-pass Structure of Engine Oil Filter Bracket having Relief Valve in Response to Temperature}A By-pass Structure of Engine Oil Filter Bracket having Relief Valve in Response to Temperature}

본 발명은 엔진오일 필터브래킷의 바이패스 구조에 관한 것으로서, 보다 상세하게는 엔진오일의 온도가 극저온인 경우에는 오일압력이 상승되어 부품파손의 우려가 있는 바 엔진오일을 오일팬으로 바이패스시키고, 엔진오일이 정상온도가 되면 바이패스통로를 차단하여 엔진오일이 오일필터 쪽으로 정상공급되도록 한 온도감응형 릴리프밸브가 설치된 엔진오일 필터브래킷의 바이패스 구조에 관한 것이다.The present invention relates to a bypass structure of the engine oil filter bracket. More specifically, when the temperature of the engine oil is extremely low, the oil pressure is increased to bypass the engine oil to the oil pan. When the engine oil reaches the normal temperature, the bypass structure of the engine oil filter bracket is installed with a temperature-sensitive relief valve that shuts down the bypass passage so that the engine oil is normally supplied to the oil filter.

일반적으로, 자동차에는 엔진의 윤활을 목적으로 하는 윤활유(이하, "엔진오일"이라 한다)가 엔진으로 공급되는 바, 이 엔진오일은 엔진내부의 각 윤활부와, 실린더블록 및 실린더 헤드에 형성된 오일통로(메인 갤러리라고도 한다)를 통해 엔진 전체의 마찰을 감소시키고, 마모를 방지하며, 마찰부분의 열이나 피스톤의 열을 식혀주는 작용을 한다.In general, a vehicle is supplied with a lubricating oil (hereinafter referred to as "engine oil") for lubricating an engine to an engine, and the engine oil is oil formed in each lubrication part of the engine, cylinder block and cylinder head Passages (also known as main galleries) reduce friction throughout the engine, prevent wear, and cool the friction or the piston.

즉, 엔진오일은 엔진 윤활부의 각 섭동면에 유막을 형성하여 고체마찰을 마찰력이 아주 작은 유체마찰이 되게 하여, 결과적으로 마찰저항을 작게 함으로써 마모가 적고, 또한 마찰열에 의한 온도 상승을 억제하게 되는 것이다. In other words, the engine oil forms an oil film on each perturbation surface of the engine lubrication portion, so that the solid friction becomes a fluid friction with a very small frictional force. As a result, the frictional resistance is reduced so that the wear is reduced and the temperature rise due to the frictional heat is suppressed. will be.

이러한 기능을 하는 엔진오일은 도1에 나타낸 바와 같이 오일팬(1)에 저장되어 있다가 엔진이 가동되면 엔진과 연동하여 동작되는 오일펌프(2)에 의하여 압송되어 오일필터브래킷(3)을 지나 오일필터(4)로 공급된다.The engine oil having this function is stored in the oil pan 1 as shown in FIG. 1, and when the engine is operated, the engine oil is pumped by the oil pump 2 operated in conjunction with the engine to pass through the oil filter bracket 3. The oil filter 4 is supplied.

상기 오일필터(4)는 엔진오일 중에 포함된 미세한 불순물을 거르기 위한 중요한 구성요소로서, 엔진오일은 상기 오일필터(4)를 거쳐 실린더블록(5)의 갤러리홀로 공급되어 윤활작용을 하게 되고, 윤활작용을 끝마친 엔진오일은 다시 실린더블록(5) 하부에 있는 오일팬(1)으로 떨어져 저장되었다가 위와 같은 작용을 반복하게 된다.The oil filter 4 is an important component for filtering out fine impurities contained in the engine oil, and the engine oil is supplied to the gallery hole of the cylinder block 5 through the oil filter 4 to lubricate and lubricate. After finishing the operation, the engine oil is stored in the oil pan (1) under the cylinder block (5) and stored again, and the above operation is repeated.

이때, 상기 엔진오일은 오일압력이 과도하게 상승하거나 윤활장치의 각 구성요소를 보호할 필요가 있을 때는 다른 곳으로 바이패스되는데, 도1에 도시된 바에 따르면, 오일팬(1)에서 오일펌프(2)로 송출된 엔진오일의 일부는 제1바이패스통로(11)를 통해 오일팬(1)으로 귀환된다.At this time, the engine oil is bypassed when the oil pressure is excessively increased or it is necessary to protect each component of the lubricator, as shown in Figure 1, the oil pump (1) in the oil pan (1) A part of the engine oil sent to 2) is returned to the oil pan 1 through the first bypass passage 11.

상기 제1바이패스통로(11)는 엔진 회전수의 상승으로 인하여 오일펌프(2)의 회전수가 지나치게 높아져 오일펌프(2)의 토출압력이 급상승하게 될 경우, 상기 오일필터브래킷(3) 및 오일필터(4)의 파손을 방지하기 위해 일정량의 오일만을 오일필터(4)쪽으로 공급하고 나머지 오일은 다시 오일팬(1)으로 귀환시킨다.The first bypass passage 11 has the oil filter bracket 3 and the oil when the rotation speed of the oil pump 2 is excessively increased due to the increase of the engine speed, so that the discharge pressure of the oil pump 2 rises rapidly. In order to prevent breakage of the filter 4, only a certain amount of oil is supplied to the oil filter 4 and the remaining oil is returned to the oil pan 1 again.

또한, 상기 오일필터브래킷(3)과 실린더블록(5) 사이에는 제2바이패스통로(12)가 설치되어 상기 오일펌프(2)에서 오일필터브래킷(3)을 통해 상기 오일필터(4)로 공급된 엔진오일이, 상기 오일필터(4)의 입구와 출구간의 압력차가 클 경우(오일필터가 이물질에 의해 막혀 오일의 흐름이 원활하지 못할 경우 입출구간의 압력차가 커진다), 그 엔진오일은 상기 제2바이패스통로(12)를 통해 오일필터(4)를 거치지 않고 실린더블록(5)으로 직접 공급된다.In addition, a second bypass passage 12 is installed between the oil filter bracket 3 and the cylinder block 5 to the oil filter 4 through the oil filter bracket 3 in the oil pump 2. When the supplied engine oil has a large pressure difference between the inlet and the outlet of the oil filter 4 (when the oil filter is blocked by foreign matter and the flow of oil is not smooth, the pressure difference between the inlet and the outlet increases), the engine oil is It is directly supplied to the cylinder block 5 without passing through the oil filter 4 through the two bypass passages 12.

이와 같이, 엔진오일이 바이패스되기 위해서 상기 오일펌프(2)에는 오일펌프(2)로부터 엔진오일이 들어오는 입구부(21)와, 상기 오일필터(4) 쪽으로 엔진오일이 나가는 출구부(22) 및 오일팬(1)과 연결되는 바이패스부(23), 이렇게 3개의 통로가 형성되어야 하는데, 그 구조는 도2에 나타낸 바와 같다.As such, in order to bypass the engine oil, the oil pump 2 has an inlet 21 through which the engine oil enters from the oil pump 2 and an outlet 22 through which the engine oil exits toward the oil filter 4. And the bypass portion 23 connected to the oil pan 1, so that three passages should be formed, the structure of which is shown in FIG.

도2는 종래 제1바이패스통로의 바이패스구조를 나타낸 개략 단면도로서, 여기서 보면, 오일펌프(2)에는 엔진오일이 들어오도록 상기 오일펌프와 연결되는 입구부(21)와, 상기 오일필터(4) 쪽으로 엔진오일이 나가도록 오일필터와 연결되는 출구부(22) 및 상기 오일팬(1)과 연결되는 바이패스부(23)가 형성된다.2 is a schematic cross-sectional view showing a bypass structure of a conventional first bypass passage. Here, the oil pump 2 includes an inlet portion 21 connected to the oil pump so that engine oil enters, and the oil filter ( An outlet part 22 connected to the oil filter and a bypass part 23 connected to the oil pan 1 are formed so that the engine oil goes out to 4).

한편, 상기 바이패스부(23)에는 바이패스부의 입구를 개폐할 수 있도록 마련된 이동체(24)가 리턴스프링(25)에 의하여 탄성 설치되어 상기 바이패스부(23)의 입구를 막고 있다.On the other hand, the bypass portion 23 is provided with a movable body 24 provided to open and close the inlet of the bypass portion by the return spring 25 to block the inlet of the bypass portion 23.

즉, 도2에 나타낸 바와 같은 종래의 제1바이패스통로의 바이패스 구조에서는 상기 오일펌프(2)에서 공급된 엔진오일이 입구부(21)를 통해 오일필터브래킷(3)으로 유입되고, 유입된 엔진오일은 오일필터브래킷(3)에 형성된 출구부(22)를 통해 상기 오일필터(4) 쪽으로 공급된다.That is, in the bypass structure of the conventional first bypass passage as shown in FIG. 2, the engine oil supplied from the oil pump 2 flows into the oil filter bracket 3 through the inlet portion 21, and flows in. The engine oil is supplied to the oil filter 4 through the outlet 22 formed in the oil filter bracket 3.

이때, 엔진 회전수가 작아서 상기 오일펌프(2)의 토출압이 그다지 크지 않다면 상기 이동체(24)는 리턴스프링(25)의 탄성 반발력 때문에 움직이지 않고 바이패스부(23)를 막게 되므로 입구부(21)로 유입된 엔진오일은 전량 출구부(22)를 통해 오일필터(4)쪽으로 공급된다.At this time, if the engine rotation speed is small and the discharge pressure of the oil pump 2 is not very large, the moving body 24 is not moved due to the elastic repulsive force of the return spring 25 and thus the bypass part 23 is blocked. The engine oil introduced into) is supplied toward the oil filter 4 through the entire outlet 22.

하지만, 엔진 회전수가 높아져서 상기 오일펌프(2)의 토출압이 4 ~ 6 bar 이상이 되면 오일압력이 상기 이동체(24)를 가압하여 상기 이동체(24)가 리턴스프링(25)의 반발력을 극복하고 이동하게 되어, 유입된 엔진오일 중 일부는 상기 오일필터(4)쪽으로 공급되고, 나머지 일부는 제1바이패스통로(11)를 통해 오일팬(1) 쪽으로 귀환되어 오일필터(4)에 과도한 압력이 걸리는 것을 방지한다.However, when the engine speed is increased and the discharge pressure of the oil pump 2 is 4 ~ 6 bar or more, the oil pressure pressurizes the movable body 24 so that the movable body 24 overcomes the repulsive force of the return spring 25. Some of the engine oil introduced is supplied to the oil filter 4, and some of the engine oil is returned to the oil pan 1 through the first bypass passage 11, and excessive pressure is applied to the oil filter 4. Prevent it from getting caught.

그러나, 상술한 바와 같은 종래의 바이패스구조에서는 대기온도가 -40℃ 정도까지 떨어지는 혹한기에 오일의 점도가 증가되므로 연료펌프에서 오일필터브래킷으로 토출되는 오일압력은 상온의 수배에 달하게 되어, 그 결과 윤활장치들의 시일성이 저하되어 오일유출이 유발되며, 과도한 오일압력에 의하여 윤활장치의 내구성이 크게 저하되는 문제점이 있다.However, in the conventional bypass structure as described above, since the viscosity of oil is increased in cold weather when the atmospheric temperature drops to about -40 ° C, the oil pressure discharged from the fuel pump to the oil filter bracket reaches several times the normal temperature. The sealing property of the lubricating devices is reduced, causing oil leakage, and the durability of the lubricating device is greatly reduced by excessive oil pressure.

본 발명은 상술한 바와 같은 문제점을 해결하기 위하여 제안된 것으로서, 그 목적은 오일필터브래킷에 유입된 엔진오일의 온도에 따라 오일이 오일팬으로 자동으로 바이패스되도록 함으로써 오일의 온도가 낮을 때는 바이패스되는 양을 크게 하여 점도가 높고 고압인 엔진오일에 의해 부품이 손상되는 것을 방지하고, 오일의 온도가 정상이 되면 바이패스통로를 차단하여 엔진오일이 정상적으로 오일필터 쪽으로 공급되도록 하는데 있다. The present invention has been proposed to solve the above problems, the object of which is to bypass the oil when the oil temperature is low by automatically bypassing the oil to the oil pan according to the temperature of the engine oil introduced into the oil filter bracket By increasing the amount to prevent the parts are damaged by the engine oil of high viscosity and high pressure, and when the oil temperature is normal to block the bypass passage so that the engine oil is normally supplied to the oil filter.

상기의 목적을 달성하기 위한 본 발명은, 오일팬에 저장된 엔진오일이 오일펌프에 의하여 압송되어 오일필터브래킷을 지나 오일필터로 공급되고, 상기 오일필터로 유입된 엔진오일은 오일필터에서 불순물이 걸러져 실린더의 각부로 공급되며, 상기 실린더에 공급된 엔진오일은 다시 오일팬으로 귀환되는 경로를 갖는 자동차용 엔진오일의 순환구조에 있어서, 상기 오일필터브래킷에는 상기 오일펌프와 연결되어 엔진오일이 들어오는 입구부와, 상기 오일필터 측과 연결되어 엔진오일이 나가는 출구부 및 상기 오일펌프에서 들어온 엔진오일이 상기 오일팬으로 되돌아가도록 하는 바이패스부가 형성되어 있으며, 상기 오일필터브래킷의 내부에는 엔진오일의 온도에 따라 부피가 변하는 온도감응식 팽창부재를 갖는 릴리프밸브가 설치되어 그 릴리프밸브에 의하여 상기 엔진오일의 온도가 저온일 때는 상기 바이패스부가 개방되고, 상기 엔진오일의 온도가 정상 온도 이상이 되면 상기 바이패스부가 닫히는 것을 특징으로 하는 온도감응형 릴리프밸브가 설치된 엔진오일 필터브래킷의 바이패스구조이다.According to the present invention for achieving the above object, the engine oil stored in the oil pan is pumped by the oil pump and supplied to the oil filter through the oil filter bracket, the engine oil introduced into the oil filter is filtered out of the oil filter In the circulation structure of the engine oil for automobiles which are supplied to each part of the cylinder and the engine oil supplied to the cylinder is returned to the oil pan, the oil filter bracket is connected to the oil pump and the engine oil enters the inlet. And an outlet part connected to the oil filter side and an outlet part through which the engine oil goes out, and an engine oil coming from the oil pump to return to the oil pan, are formed inside the oil filter bracket. Relief valve is installed with a temperature-sensitive expansion member that changes in volume depending on the relief An engine oil filter bracket provided with a temperature-sensitive relief valve, characterized in that the bypass portion is opened when the engine oil temperature is low due to the lower part, and the bypass portion is closed when the temperature of the engine oil is equal to or higher than the normal temperature. Bypass structure of.

이하, 본 발명의 기술구성을 첨부된 도면에 의거하여 보다 상세하게 설명한다.Hereinafter, the technical configuration of the present invention will be described in detail with reference to the accompanying drawings.

도3은 본 발명에 따른 엔진오일의 순환 경로와 바이패스 경로를 보이기 위한 블록도이고, 도4는 오일필터가 설치되는 오일필터브래킷을 보이기 위한 사시도이며, 도5a 및 도5b는 본 발명의 작용 상태를 나타낸 참고도이다.Figure 3 is a block diagram for showing the circulation path and bypass path of the engine oil according to the present invention, Figure 4 is a perspective view for showing the oil filter bracket is installed oil filter, Figures 5a and 5b is an operation of the present invention A reference diagram showing the state.

도3에 도시된 바와 같이, 오일팬(1)에 저장된 엔진오일은 오일펌프(2)에 의하여 압송되어 오일필터브래킷(3)에 소정의 압력으로 공급된다.As shown in FIG. 3, the engine oil stored in the oil pan 1 is pumped by the oil pump 2 and supplied to the oil filter bracket 3 at a predetermined pressure.

상기 오일펌프(2)는 엔진이 가동되면 그 엔진과 연동하여 함께 회전되는 것으로, 도4에 도시된 프론트케이스(fc) 내에 내장되어 있고, 상기 오일펌프(2)가 회전되면 오일팬(1)에 저장되어 있는 엔진오일이 펌핑된 후, 상기 오일필터브래킷(3)으로 압송된다.The oil pump (2) is rotated together with the engine when the engine is running, it is embedded in the front case (fc) shown in Figure 4, when the oil pump (2) is rotated the oil pan (1) The engine oil stored in the pumped gas is pumped to the oil filter bracket 3.

오일필터브래킷(3)으로 보내진 엔진오일은 도3에 도시된 바와 같이 오일필터(4)를 통과함으로써 엔진오일에 포함된 불순물이 걸러지게 되고, 이렇게 불순물이 걸러진 엔진오일은 실린더블록(5)의 갤러리홀로 보내져 엔진 윤활에 사용된다.As shown in FIG. 3, the engine oil sent to the oil filter bracket 3 passes through the oil filter 4 to filter out impurities contained in the engine oil. The filtered engine oil is filtered out of the cylinder block 5. It is sent to the gallery hall for lubrication of the engine.

한편, 상술한 바와 같은 엔진오일의 순환구조에는 제1바이패스통로(11)와 제2바이패스통로(12)가 마련되어, 고압으로 송출되는 엔진오일에 의하여 부품이 손상되는 것을 방지한다.On the other hand, in the circulation structure of the engine oil as described above, the first bypass passage 11 and the second bypass passage 12 are provided to prevent the parts from being damaged by the engine oil which is sent at a high pressure.

즉, 도3에 도시된 바와 같이, 오일펌프(2)와 오일팬(1) 사이에는 상기 제1바이패스통로(11)가 형성되어, 엔진 회전수의 상승에 의하여 오일펌프 토출압이 지나치게 클 경우 부품 보호를 위해 제1바이패스통로(11)가 개방되어 일부의 엔진오일이 오일팬(1)으로 귀환되도록 한다.That is, as shown in FIG. 3, the first bypass passage 11 is formed between the oil pump 2 and the oil pan 1, and the oil pump discharge pressure is excessively large due to the increase in the engine speed. In this case, the first bypass passage 11 is opened to protect the parts so that some engine oil is returned to the oil pan 1.

또한, 상기 오일필터브래킷(3)과 실린더 블록(5) 사이에는 상기 제2바이패스통로(12)가 형성되어 상기 오일필터(4)에 과도한 압력이 가해질 경우 오일필터브래킷(3)에서 오일필터(4)를 거치지 않고 실린더블록(5)으로 엔진오일이 공급된다.In addition, when the second bypass passage 12 is formed between the oil filter bracket 3 and the cylinder block 5, and an excessive pressure is applied to the oil filter 4, the oil filter in the oil filter bracket 3 The engine oil is supplied to the cylinder block 5 without passing through (4).

한편, 본 발명에 의하면, 상기 오일필터브래킷(3)에는 그 오일필터브래킷(3)과 오일팬(1)을 서로 연결하는 제3바이패스통로(13)가 형성되고, 그 제3바이패스통로(13)에는 온도에 따라 자동으로 개폐가 이루어지는 릴리프밸브(40)가 설치된다.Meanwhile, according to the present invention, the oil filter bracket 3 is provided with a third bypass passage 13 for connecting the oil filter bracket 3 and the oil pan 1 to each other, and the third bypass passage. Relief valve 40 that is opened and closed automatically according to the temperature is provided at (13).

상기 제3바이패스통로(13)가 형성되기 위하여 상기 오일필터브래킷(3)의 일측에는 엔진오일이 유입되는 입구부(31)와, 그 입구부(31)를 통해 들어온 엔진오일이 오일필터(4) 쪽으로 나가는 출구부(32)와, 상기 입구부(31)를 통해 들어온 엔진오일의 온도가 극히 낮을 경우 이 엔진오일을 제3바이패스통로(13)를 통해 오일팬(1)으로 다시 귀환시키기 위한 바이패스부(33)가 형성된다.In order to form the third bypass passage 13, one side of the oil filter bracket 3 includes an inlet part 31 through which engine oil flows, and an engine oil introduced through the inlet part 31. 4) When the temperature of the engine oil coming in through the inlet part 31 and the inlet part 31 is extremely low, the engine oil is returned back to the oil pan 1 through the third bypass passage 13. Bypass portion 33 is formed.

즉, 상기 오일필터브래킷(3)에 형성된 입구부(31)는 상기 오일펌프(2)와 연결되어 그 입구부(31)를 통해 오일펌프(2)에서 송출된 엔진오일이 유입되고, 상기 출구부(32)는 상기 오일필터(4)와 연결되어 상기 입구부(31)를 통해 유입된 엔진오일이 출구부(32)를 통해 상기 오일필터(4)로 공급된다.That is, the inlet portion 31 formed in the oil filter bracket 3 is connected to the oil pump 2 and the engine oil sent from the oil pump 2 is introduced through the inlet portion 31, and the outlet The part 32 is connected to the oil filter 4 and the engine oil introduced through the inlet part 31 is supplied to the oil filter 4 through the outlet part 32.

이때, 상기 입구부(31)를 통해 유입된 엔진오일의 온도가 매우 낮으면, 엔진오일의 점도가 상승하여 오일압력이 높아지게 되므로, 상기 제3바이패스통로(13)를 개방시켜 일부 엔진오일을 오일팬(1) 쪽으로 귀환시켜야 한다.At this time, if the temperature of the engine oil introduced through the inlet portion 31 is very low, the viscosity of the engine oil is increased to increase the oil pressure, so that the third bypass passage 13 is opened to open some engine oil. Return to the oil pan (1).

따라서, 상기 오일필터브래킷(3)의 내부에는 엔진오일의 온도가 소정이하로 내려가면 상기 바이패스부(33)를 개방시키고 엔진오일이 정상온도 이상이 되면 상기 바이패스부(33)를 닫도록 하는 릴리프밸브(40)가 설치된다.Accordingly, the inside of the oil filter bracket 3 opens the bypass portion 33 when the temperature of the engine oil falls below a predetermined temperature, and closes the bypass portion 33 when the engine oil reaches a normal temperature or more. Relief valve 40 is installed.

상기 릴리프밸브(40)에는 도5a 및 도5b에 도시된 바와 같이 그 일측으로 온도감응식 팽창부재(42)가 내장되어 있어서 오일온도가 상승되면 온도감응식 팽창부재(42)가 소정의 부피로 팽창되어 그 길이가 신장되므로 상기 바이패스부(33)가 폐쇄되고, 오일온도가 하강되면 온도감응식 팽창부재(42)가 다시 줄어들어 릴리프밸브(40)의 전체 길이가 줄어들게 되므로 상기 바이패스부(33)가 개방되게 된다.As shown in FIGS. 5A and 5B, the relief valve 40 has a temperature sensitive expansion member 42 built in one side thereof, and when the oil temperature rises, the temperature sensitive expansion member 42 is moved to a predetermined volume. The bypass part 33 is closed because it is expanded and its length is extended. When the oil temperature is lowered, the temperature-sensitive expansion member 42 is reduced again so that the entire length of the relief valve 40 is reduced. 33) is opened.

여기서, 상기 릴리프밸브(40)는, 상기 오일필터브래킷(3)의 내부 일측벽에 고정 설치되며 내부로 상기 온도감응식 팽창부재(42)가 내장되는 고정체(41)와, 상기 고정체(41)에서 상기 온도감응식 팽창부재(42)의 팽창에 의하여 상기 바이패스부(33) 쪽으로 이동되는 이동체(43)와, 상기 온도감응식 팽창부재(42)가 수축되면 상기 이동체(43)가 원래의 위치로 복원되도록 하는 탄성부재로 구성된다.Here, the relief valve 40 is fixed to the inner side wall of the oil filter bracket (3) and the fixed body 41 is built in the temperature-sensitive expansion member 42 therein, and the fixed body ( In (41), the movable body (43) moved toward the bypass portion (33) by the expansion of the temperature sensitive expansion member (42), and the movable body (43) when the temperature sensitive expansion member (42) is contracted. It is composed of an elastic member to be restored to its original position.

이때, 상기 온도감응식 팽창부재(42)는 온도에 따라 자체 부피가 늘어나거나 줄어드는 왁스(wax)로 이루어지는 것이 바람직하고, 상기 탄성부재는 코일형태로 감겨 있는 코일식 리턴스프링(44)으로 이루어지는 것이 바람직하다.At this time, the temperature-sensitive expansion member 42 is preferably made of wax (wax) that increases or decreases its volume according to temperature, the elastic member is made of a coil-type return spring (44) wound in the form of a coil. desirable.

이상의 구성을 갖는 본 발명의 작용을 첨부된 도5a 및 도5b를 참조하여 간단하게 설명하면 다음과 같다.The operation of the present invention having the above configuration will be briefly described with reference to FIGS. 5A and 5B.

도5a에 도시된 바와 같이 오일필터브래킷(3)의 입구부로 들어온 엔진오일의 온도가 약 - 40℃ 내외로 매우 저온일 경우에는 릴리프밸브(40)에 내장된 온도감응식 팽창부재(42)가 수축되어 상기 바이패스부(33)가 개방되므로, 오일필터브래킷(3)의 입구부(31)로 들어온 엔진오일은 출구부(32)를 통해 오일필터(4) 쪽으로 대거 공급되고, 나머지의 오일들은 개방된 바이패스부(33)를 통해 오일팬(1)으로 귀환된다.As shown in FIG. 5A, when the temperature of the engine oil entering the inlet of the oil filter bracket 3 is about −40 ° C. or very low temperature, the temperature sensitive expansion member 42 embedded in the relief valve 40 may be Since the bypass part 33 is contracted and opened, the engine oil entering the inlet part 31 of the oil filter bracket 3 is supplied to the oil filter 4 through the outlet part 32 in a large amount, and the remaining oil is supplied. They are returned to the oil pan 1 through the open bypass portion 33.

한편, 엔진이 어느 정도 워밍업되어 엔진오일의 온도가 상승하게 되면 도5b에 도시된 바와 같이 온도감응식 팽창부재(42)가 소정부피로 팽창되어 릴리프밸브(40)의 이동체(43)를 밀게 되므로, 상기 이동체(43)가 바이패스부(33)를 막게 된다.On the other hand, when the engine warms up to some extent and the temperature of the engine oil rises, as shown in FIG. 5B, the temperature-sensitive expansion member 42 is expanded to a predetermined volume to push the movable body 43 of the relief valve 40. In addition, the movable body 43 blocks the bypass unit 33.

따라서, 상기 오일필터브래킷(3)의 입구부(31)로 들어온 엔진오일은 바이패스부(33)로 가지 못하고 출구부(32)를 통해 오일필터(4) 쪽으로 공급된다.Therefore, the engine oil entering the inlet portion 31 of the oil filter bracket 3 does not go to the bypass portion 33 but is supplied toward the oil filter 4 through the outlet portion 32.

도5b와 같이 엔진오일의 온도가 상승하게 되면 엔진오일의 점도가 낮아지게 되고 이로 인하여 오일의 압력 또한 저하되게 되므로 엔진오일을 바이패스시키지 않고 그대로 오일필터 쪽으로 보내면 된다.When the temperature of the engine oil rises as shown in FIG. 5B, the viscosity of the engine oil is lowered and thus the pressure of the oil is also lowered. Therefore, the engine oil may be sent to the oil filter without bypassing the engine oil.

상술한 바와 같이 본 발명에 따른 엔진오일 필터브래킷의 바이패스 구조에 의하면, 엔진오일의 온도변화에 따라 제3바이패스통로가 자동으로 개폐되어 오일온도가 저온일 때는 유입된 오일의 일부를 오일팬으로 바이패스시키고, 엔진오일이 정상온도가 되면 제3바이패스통로를 막아서 오일필터 쪽으로 전량 공급되도록 함으로써 윤활부품이 손상되거나 실링 부위가 파손되어 엔진오일이 누출되는 것을 방지하는 특유의 효과가 있다.As described above, according to the bypass structure of the engine oil filter bracket according to the present invention, when the third bypass passage is automatically opened and closed according to the temperature change of the engine oil, when the oil temperature is low, an oil pan By bypassing the engine oil at a normal temperature, the third bypass passage is blocked so that the entire amount is supplied to the oil filter, thereby preventing the engine oil from leaking due to damage to the lubrication component or damage to the sealing part.

도1은 종래 엔진오일의 순환경로와 바이패스 경로를 보이기 위한 블록도,1 is a block diagram for showing a circulation path and a bypass path of a conventional engine oil;

도2는 종래 제1바이패스통로의 바이패스구조를 나타낸 개략 단면도,2 is a schematic cross-sectional view showing a bypass structure of a conventional first bypass passage;

도3은 본 발명에 따른 엔진오일의 순환 경로와 바이패스 경로를 보이기 위한 블록도,3 is a block diagram for showing a circulation path and a bypass path of the engine oil according to the present invention;

도4는 오일필터가 설치되는 오일필터브래킷을 보이기 위한 사시도,4 is a perspective view for showing an oil filter bracket in which an oil filter is installed;

도5a 및 도5b는 본 발명의 작용 상태를 나타낸 참고도.5A and 5B are reference diagrams showing an operating state of the present invention.

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

1 : 오일팬 2 : 오일펌프1: Oil Pan 2: Oil Pump

3 : 오일필터브래킷 4 : 오일필터3: oil filter bracket 4: oil filter

5 : 실린더블록 11 : 제1바이패스통로5: cylinder block 11: first bypass passage

12 : 제2바이패스통로 13 : 제3바이패스통로12: second bypass passage 13: third bypass passage

31 : 입구부 32 : 출구부31: inlet part 32: outlet part

33 : 바이패스부 40 : 릴리프밸브33: bypass portion 40: relief valve

41 : 고정체 42 : 온도감응형 팽창부재41: fixed body 42: temperature sensitive expansion member

43 : 이동체 44 : 리턴스프링43: moving body 44: return spring

Claims (4)

오일팬(1)에 저장된 엔진오일이 오일펌프(2)에 의하여 압송되어 오일필터브래킷(3)을 지나 오일필터(4)로 공급되고, 상기 오일필터(4)로 유입된 엔진오일은 오일필터에서 불순물이 걸러져 실린더블록(5)의 각부로 공급되며, 상기 실린더블록(5)에 공급된 엔진오일은 다시 오일팬(1)으로 귀환되는 경로를 갖는 자동차용 엔진오일의 순환구조에 있어서,The engine oil stored in the oil pan 1 is pumped by the oil pump 2 and supplied to the oil filter 4 through the oil filter bracket 3, and the engine oil introduced into the oil filter 4 is an oil filter. In the circulating structure of the engine oil for automobiles having impurities filtered through and supplied to the respective parts of the cylinder block 5, the engine oil supplied to the cylinder block 5 is returned to the oil pan 1 again. 상기 오일필터브래킷(3)에는 상기 오일펌프(2)와 연결되어 엔진오일이 들어오는 입구부(31)와, 상기 오일필터(4) 측과 연결되어 엔진오일이 나가는 출구부(32) 및 상기 오일펌프(2)에서 들어온 엔진오일이 상기 오일팬(1)으로 되돌아가도록 하는 바이패스부(33)가 형성되어 있으며, 상기 오일필터브래킷(3)의 내부에는 엔진오일의 온도에 따라 부피가 변하는 온도감응식 팽창부재(42)를 갖는 릴리프밸브(40)가 설치되어 그 릴리프밸브(40)에 의하여 상기 엔진오일의 온도가 저온일 때는 상기 바이패스부(33)가 개방되고, 상기 엔진오일의 온도가 정상 온도 이상이 되면 상기 바이패스부(34)가 닫히는 것을 특징으로 하는 온도감응형 릴리프밸브가 설치된 엔진오일 필터브래킷의 바이패스구조.The oil filter bracket (3) is connected to the oil pump (2), the inlet part (31) into which engine oil enters, and the outlet part (32) connected to the oil filter (4) side and out of the engine oil, and the oil. The bypass portion 33 is formed to return the engine oil from the pump 2 to the oil pan 1, and the volume of the oil filter bracket 3 changes in volume depending on the temperature of the engine oil. When the relief valve 40 having the sensitive expansion member 42 is installed and the temperature of the engine oil is low by the relief valve 40, the bypass portion 33 is opened and the temperature of the engine oil is opened. The bypass structure of the engine oil filter bracket with a temperature-sensitive relief valve, characterized in that when the bypass temperature is above the normal temperature 34 is closed. 제1항에 있어서, 상기 온도감응식 팽창부재(42)는 온도에 따라 자체 부피가 늘어나거나 줄어드는 왁스(wax)인 것을 특징으로 하는 온도감응형 릴리프밸브가 설치된 엔진오일 필터브래킷의 바이패스구조.The bypass structure of the engine oil filter bracket according to claim 1, wherein the temperature sensitive expansion member (42) is a wax (wax) whose volume increases or decreases with temperature. 제1항 또는 제2항에 있어서, 상기 릴리프밸브(40)는, 상기 오일필터브래킷(3)의 내부 일측벽에 고정 설치되며 내부로 상기 온도감응식 팽창부재(42)가 내장되는 고정체(41)와, 상기 고정체(41)에서 상기 온도감응식 팽창부재(42)의 팽창에 의하여 상기 바이패스부(33) 쪽으로 이동되는 이동체(43)와, 상기 온도감응식 팽창부재(42)가 수축되면 상기 이동체(43)가 원래의 위치로 복원되도록 상기 이동체(43)에 복원력을 제공하는 탄성부재로 구성된 것을 특징으로 하는 온도감응형 릴리프밸브가 설치된 엔진오일 필터브래킷의 바이패스구조.According to claim 1 or 2, The relief valve 40 is fixed to the inner wall of the inner side of the oil filter bracket (3) is fixed to which the temperature-sensitive expansion member 42 is embedded ( 41, the movable body 43 which is moved toward the bypass portion 33 by the expansion of the temperature sensitive expansion member 42 in the fixed body 41, and the temperature sensitive expansion member 42 Bypass structure of the engine oil filter bracket with a temperature-sensitive relief valve, characterized in that consisting of an elastic member for providing a restoring force to the movable body 43 so that the movable body 43 is restored to its original position when it is contracted. 제3항에 있어서, 상기 탄성부재는 코일형태로 감긴 리턴스트링(44)인 것을 특징으로 하는 온도감응형 릴리프밸브가 설치된 엔진오일 필터브래킷의 바이패스구조.4. The bypass structure of the engine oil filter bracket according to claim 3, wherein the elastic member is a return string wound in a coil form.
KR1020030073845A 2003-10-22 2003-10-22 A by-pass structure of engine oil filter bracket having relief valve in response to temperature KR20050038486A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014109317A1 (en) 2013-12-09 2015-06-11 Hyundai Motor Company Thermal bypass valve and method for detecting a fault thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014109317A1 (en) 2013-12-09 2015-06-11 Hyundai Motor Company Thermal bypass valve and method for detecting a fault thereof
US9528628B2 (en) 2013-12-09 2016-12-27 Hyundai Motor Company Thermo bypass valve and method for detecting failure of the same

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