KR100489117B1 - Oil supplied to cylinder head controling device - Google Patents

Oil supplied to cylinder head controling device Download PDF

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Publication number
KR100489117B1
KR100489117B1 KR10-2001-0070081A KR20010070081A KR100489117B1 KR 100489117 B1 KR100489117 B1 KR 100489117B1 KR 20010070081 A KR20010070081 A KR 20010070081A KR 100489117 B1 KR100489117 B1 KR 100489117B1
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KR
South Korea
Prior art keywords
oil
valve seat
cylinder head
seat hole
cylindrical body
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KR10-2001-0070081A
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Korean (ko)
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KR20030039140A (en
Inventor
신승용
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현대자동차주식회사
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Priority to KR10-2001-0070081A priority Critical patent/KR100489117B1/en
Publication of KR20030039140A publication Critical patent/KR20030039140A/en
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Publication of KR100489117B1 publication Critical patent/KR100489117B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P2003/006—Liquid cooling the liquid being oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/024—Cooling cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps

Abstract

본 발명의 목적은 엔진의 운전조건에 맞추어 적정량의 엔진오일이 실린더헤드에 공급되도록 하여 오일펌프의 구동손실의 저감을 가져와 연비를 개선할 수 있는 실린더헤드에의 오일급송량 조절장치를 제공하는 데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide an oil supply amount adjusting device for a cylinder head which can improve the fuel efficiency by reducing the driving loss of an oil pump by supplying an appropriate amount of engine oil to a cylinder head in accordance with the engine operating conditions. have.

이를위해 본 발명은 실린더헤드와 실린더블록의 오일통로를 연통하여 주도록 경계지점에 형성되는 오리피스구멍과;To this end, the present invention includes an orifice hole formed at the boundary point to communicate the oil passage of the cylinder head and the cylinder block;

상기 오리피스구멍에 장착되는 원통체와;A cylindrical body mounted to the orifice hole;

상기 원통체의 실린더블록측에 형성된 밸브시트공을 개폐하는 오일유량조절 뜨개와;An oil flow rate adjusting thread for opening and closing a valve seat hole formed on the cylinder block side of the cylindrical body;

상기 오일유량조절 뜨개를 지지하여 오일온도에 반응하여 선형적으로 휘어지도록 변형되므로써 상기 밸브시트공의 개방량을 변화시키는 바이메탈체와;A bimetal body for supporting the oil flow adjusting knitting machine and changing the opening amount of the valve seat hole by being deformed to be linearly bent in response to oil temperature;

상기 오일유량조절 뜨개가 상기 밸브시트공에 밀착하는 방향으로 힘을 가하도록 상기 원통체내에 마련되는 스프링; 을 포함하여 구성되어 있다.A spring provided in the cylindrical body such that the oil flow adjusting knitting force exerts a force in a direction in close contact with the valve seat hole; It is configured to include.

Description

실린더헤드에의 오일급송량 조절장치{Oil supplied to cylinder head controling device}Oil supply to cylinder head controling device

본 발명은 실린더헤드에의 오일급송량 조절장치에 관한 것이다.The present invention relates to an oil supply amount adjusting device to a cylinder head.

엔진의 윤활은 엔진 내부의 마찰저항을 저감함과 동시에 엔진내부의 냉각에 대하여 중요한 의미를 가지고 있다. 이 때문에 엔진에는 엔진 각부의 윤활과 냉각을 위한 엔진오일이 주입되어 있으며, 이 엔진오일은 실린더블록에 장착되어 크랭크축 회전력에 의해 구동되는 오일펌프에 의해 순환되어지게 된다.Lubrication of the engine is important for cooling the engine while reducing the frictional resistance inside the engine. Therefore, the engine oil is injected into the engine for lubrication and cooling of the engine parts, and the engine oil is mounted on the cylinder block and circulated by an oil pump driven by the crankshaft rotational force.

오일펌프에 의해 실린더블록을 순환하면서 윤활 및 냉각을 한 엔진오일은 실린더헤드와 실린더블록의 오일갤러리를 연통시켜주는 오리피스구멍을 통해 실린더헤드로 유입되어 밸브트레인을 윤활 및 냉각시키게 된다.The engine oil lubricated and cooled while circulating the cylinder block by the oil pump flows into the cylinder head through an orifice hole connecting the cylinder head and the oil gallery of the cylinder block to lubricate and cool the valve train.

그러나 종래의 경우 실린더블록과 실린더헤드의 오일공급통로를 연결해주는 오리피스구멍은 단순한 통로일 뿐 유량을 능동적으로 제어해주지 못하므로써 다음과 같이 문제점이 나타나고 있다.However, in the related art, the orifice hole connecting the oil supply passage of the cylinder block and the cylinder head is a simple passage and does not actively control the flow rate.

크랭크축과 캠축의 회전수가 1:2 비율로 차이가 있고, 크랭크축과 컨넥팅로드의 베어링은 연소압에 의한 힘을 직접받기 때문에, 회전수가 높아질수록 실린더블록의 베어링 클리어런스의 증가량이 실린더헤드 캠축의 저널 클리어런스보다 커져 실린더헤드로 올라가는 오일유량이 감소하게 된다.The rotation speed of the crankshaft and camshaft differs in the ratio of 1: 2, and the bearings of the crankshaft and the connecting rod are directly affected by the combustion pressure, so the higher the rotational speed, the increase in the bearing clearance of the cylinder block is the cylinder head cam. Larger than the journal clearance on the shaft, the oil flow to the cylinder head is reduced.

실린더헤드로의 오일유량 비율의 감소는 오일온도의 상승을 촉진하게 되는데, 이는 오일의 냉각이 실린더헤드 상면의 밸브트레인계가 장착되는 미들데크에서 주로 이루어지기 때문으로서, 오일온도를 저감하기 위해서 실린더블록에서 실린더헤드로 오일이 공급되는 유로인 오리피스구멍의 직경을 크게하면 많은 량의 오일이 실린더헤드에 공급되어 냉각용량이 증대되어 오일의 온도 상승이 감소되어지게 되는 효과가 있으나, 오리피스구멍의 직경 확대는 엔진의 전운전영역에 걸쳐 오일펌프의 요구유량이 증대되어 구동손실이 커지게 되는 부작용 있어 오리피스구멍의 직경확대는 그리 바람직스럽지 않은 방안이다.The reduction of the oil flow rate to the cylinder head promotes an increase in the oil temperature, because the cooling of the oil is mainly performed in the middle deck mounted with the valve train system on the upper surface of the cylinder head, so that the cylinder block is reduced to reduce the oil temperature. Increasing the diameter of the orifice hole, which is the flow path through which oil is supplied to the cylinder head, increases the cooling capacity by increasing the amount of oil supplied to the cylinder head, thereby reducing the temperature rise of the oil. Since the required flow rate of the oil pump is increased over the entire operating region of the engine, the driving loss is increased. Therefore, the diameter of the orifice hole is not preferable.

이에 본 발명은 상기한 점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은Accordingly, the present invention has been made in view of the above-mentioned points, and its object is

엔진의 운전조건에 맞추어 적정량의 엔진오일이 실린더헤드에 공급되도록 하여 오일펌프의 구동손실의 저감을 가져와 연비를 개선할 수 있는 실린더헤드에의 오일급송량 조절장치를 제공하는 데 있다.The present invention provides an oil feed amount control device for a cylinder head capable of supplying an appropriate amount of engine oil to a cylinder head in accordance with operating conditions of an engine, thereby reducing driving loss of an oil pump and improving fuel efficiency.

상기한 목적을 달성하기 위하여 본 발명은The present invention to achieve the above object

실린더헤드와 실린더블록의 오일통로를 연통하여 주도록 경계지점에 형성되는 오리피스구멍과;An orifice hole formed at the boundary point to communicate the oil passage between the cylinder head and the cylinder block;

상기 오리피스구멍에 장착되는 원통체와;A cylindrical body mounted to the orifice hole;

상기 원통체의 실린더블록측에 형성된 밸브시트공을 개폐하는 오일유량조절 뜨개와;An oil flow rate adjusting thread for opening and closing a valve seat hole formed on the cylinder block side of the cylindrical body;

상기 오일유량조절 뜨개를 지지하여 오일온도에 반응하여 선형적으로 휘어지도록 변형되므로써 상기 밸브시트공의 개방량을 변화시키는 바이메탈체와;A bimetal body for supporting the oil flow adjusting knitting machine and changing the opening amount of the valve seat hole by being deformed to be linearly bent in response to oil temperature;

상기 오일유량조절 뜨개가 상기 밸브시트공에 밀착하는 방향으로 힘을 가하도록 상기 원통체내에 마련되는 스프링; 을 포함하여 구성되어 있다.A spring provided in the cylindrical body such that the oil flow adjusting knitting force exerts a force in a direction in close contact with the valve seat hole; It is configured to include.

이하 본 발명의 구성을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 의한 실린더헤드에의 오일급송량 조절장치를 나타내는 도면이고, 도 2는 본 발명에 의한 오일유량조절 뜨개의 저면도이다.1 is a view showing the oil supply amount adjusting device to the cylinder head according to the present invention, Figure 2 is a bottom view of the oil flow rate adjustment knitting according to the present invention.

도면에 있어 부호 1은 실린더블록이고, 부호 2는 실린더헤드이며, 부호 3과 4는 각각 오일이 순환하는 오일통로이다.In the drawing, reference numeral 1 denotes a cylinder block, reference numeral 2 denotes a cylinder head, and reference numerals 3 and 4 denote oil passages through which oil circulates, respectively.

그리고 부호 5는 실린더블록(1)과 실린더헤드(2)의 기밀유지를 위한 가스켓이다.Reference numeral 5 denotes a gasket for maintaining the airtightness of the cylinder block 1 and the cylinder head 2.

상기 오일통로(3)(4)를 연통하는 경계부분, 즉, 표시한 실시예의 경우 가스켓(5) 부위에는 양측의 오일통로(3)(4)를 연통하는 오리피스구멍(6)이 형성되고, 그 오리피스구멍(6)에는 밸브실(7)을 형성하는 원통체(8)가 끼워져 있다.An orifice hole 6 communicating with both oil passages 3 and 4 is formed in the boundary portion communicating the oil passages 3 and 4, that is, in the case of the embodiment shown, the gasket 5. The cylindrical body 8 which forms the valve chamber 7 is inserted in the orifice hole 6.

이 원통체(8)의 하부인 실린더블록(1)측에는 밸브시트공(9)이 마련되고, 이 밸브시트공(9)을 개폐하되 그 개방량을 조정하게 되는 오일유량조절 뜨개(10)가 밸브실(7)내에 마련되어 있으며, 이 오일유량조절 뜨개(10)는 밸브시트공(9)의 상부로 양쪽벽에 각각의 단부가 고정된 바이메탈체(11)에 의해 지지되고 있다.The valve seat hole 9 is provided on the cylinder block 1 side, which is the lower part of the cylindrical body 8, and the oil flow adjusting knitting machine 10 for opening and closing the valve seat hole 9 and adjusting the opening amount thereof is provided. It is provided in the valve chamber 7, and this oil flow control knitting 10 is supported by the bimetal body 11 by which the both ends were fixed to the both walls to the upper part of the valve seat hole 9. As shown in FIG.

이 바이메탈체(11)는 열팽창이 상이한 두개의 금속판을 접합시켜 형성하되, 온도가 상승하게 되면 상부측으로 휘어져 변형되도록 설계되어 있다.The bimetal body 11 is formed by joining two metal plates having different thermal expansion, but is designed to bend and deform when the temperature rises.

상기 오일유량조절 뜨개(10)는 도 2에서와같이 그의 원추형부(12)에 최소유량홈(13)이 형성되어 있으며, 또 그의 상부에서 밸브시트공(9)을 향해 힘을 가하는 스프링(14)에 의해 탄발되고 있다.The oil flow adjusting knitting 10 has a minimum flow groove 13 formed in its conical portion 12 as shown in FIG. 2, and a spring 14 for applying a force toward the valve seat hole 9 from the upper portion thereof. )

이 스프링(14)의 탄성력은 엔진의 저속운전시의 실린더헤드 부근의 오일온도에 의한 바이메탈체(11)의 초기변형력에 해당되는 정도로 설정된다.The elastic force of this spring 14 is set to the extent corresponding to the initial deformation force of the bimetal body 11 due to the oil temperature in the vicinity of the cylinder head during the low speed operation of the engine.

이와같은 본 발명은 바이메탈체(11)가 열팽창을 일으키지 않는 오일온도 조건에서는 스프링(14)의 탄성력에 의해 오일유량조절 뜨개(10)가 밸브시트공(9)에 밀착하게 되어, 오일통로(3)로부터 최소유량홈(13)을 통해 실린더헤드(2)측의 오일통로(4)로 적은량의 오일이 급송되어지게 되며, 실린더헤드(2)의 온도가 상승하여 오일온도가 높아지게 되면 이에 연동하여 바이메탈체(11)가 상측으로 휘어져(도 1의 점선도시 참조) 오일유량조절 뜨개(10)를 밸브시트공(9)으로부터 들어올리게 되며, 이에따라 밸브시트공(9)의 개방량에 비례하여 보다 많은량의 오일이 오일통로(14)로 흐르게 되므로써 실린더헤드(2)에서 요구하는 오일량을 공급하게 되는 것이다.According to the present invention, in the oil temperature condition in which the bimetal body 11 does not cause thermal expansion, the oil flow rate adjusting knitting 10 is brought into close contact with the valve seat hole 9 by the elastic force of the spring 14, and the oil passage 3 A small amount of oil is fed from the minimum flow groove 13 to the oil passage 4 of the cylinder head 2 side, and when the temperature of the cylinder head 2 rises to increase the oil temperature, The bimetal body 11 is bent upwards (refer to the dotted line in FIG. 1) to lift the oil flow adjusting knitting 10 from the valve seat hole 9, and thus, in proportion to the opening amount of the valve seat hole 9. A large amount of oil flows into the oil passage 14 to supply the amount of oil required by the cylinder head 2.

즉, 고유온시에는 엔진의 냉각성 향상을 위해 오일이 통과하는 유로면적을 증대시켜 많은 유량이 순환되도록 하며, 평상온도 조건에서는 엔진에 필요한 유량을 적게하여 오일펌프의 구동손실을 줄이게 되는 것이다.In other words, during high temperature, the flow rate of the oil flows to increase the flow rate in order to improve the cooling performance of the engine, so that a large amount of flow is circulated.

이상과 같은 본 발명에 의하면 오일온도에 반응하여 변형되는 바이메탈체에 의해 오일유량조절 뜨개가 밸브시트부의 개방량을 조절하게 되는 것에 의해서 오일온도와 오일압이 낮은 엔진의 저속운전시에는 적은량의 오일이 순환되도록하여 오일펌프의 구동손실을 줄이게 되며, 오일온도와 오일압이 높은 엔진의 고속운전시에는 바이메탈체가 크게 변형하여 오일유량조절 뜨개의 들어올림량을 증가시켜 밸브시트부의 유로 개방 단면적을 증대시키므로써 엔진의 전운전영역에 걸쳐 적절한 오일유량을 공급할 수 있어 오일펌프의 구동손실을 저감하여 연비를 개선하게 되는 효과가 있다.According to the present invention as described above, a small amount of oil during low speed operation of an engine having a low oil temperature and a low oil pressure by adjusting the amount of opening of the valve seat by the bimetal body deformed in response to the oil temperature. By reducing the driving loss of the oil pump, the bimetal body is greatly deformed during the high speed operation of the engine with high oil temperature and oil pressure to increase the lifting amount of the oil flow control float to increase the flow opening area of the valve seat. Therefore, it is possible to supply an appropriate oil flow rate over the entire operating region of the engine, thereby reducing the driving loss of the oil pump, thereby improving fuel economy.

도 1은 본 발명에 의한 실린더헤드에의 오일급송량 조절장치를 나타내는 도면.1 is a view showing an oil supply amount adjusting device to a cylinder head according to the present invention.

도 2는 본 발명에 의한 오일유량조절 뜨개의 저면도.Figure 2 is a bottom view of the oil flow control knitting according to the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 실린더블록 2 : 실린더헤드1: Cylinder block 2: Cylinder head

3,4: 오일통로 5 : 가스켓3,4: oil passage 5: gasket

6 : 오리피스구멍 7 : 밸브실6: orifice hole 7: valve chamber

8 : 원통체 9 : 밸브시트공8 cylinder 9 valve seat hole

10 : 오일유량조절 뜨개 11 : 바이메탈체10: oil flow control knitting 11: bimetal body

12 : 원추형부 13 : 최소유량홈12: conical portion 13: minimum flow groove

14 : 스프링14: spring

Claims (5)

실린더헤드(1)와 실린더블록(2)의 오일통로(3)(4)를 연통하여 주도록 경계지점에 형성되는 오리피스구멍(6)과;An orifice hole 6 formed at the boundary point so as to communicate the oil passages 3 and 4 of the cylinder head 1 and the cylinder block 2; 상기 오리피스구멍(6)에 장착되는 원통체(8)와;A cylindrical body (8) attached to the orifice hole (6); 상기 원통체(8)의 실린더블록(1) 측에 형성된 밸브시트공(9)을 개폐하는 오일유량조절 뜨개(10)와;An oil flow rate adjusting needle (10) for opening and closing the valve seat hole (9) formed at the cylinder block (1) side of the cylindrical body (8); 엔진이 저속운전으로부터 고속운전으로 진행하여 오일온도가 상승하게 되는 경우 상부측으로 휘어져 변형되어 상기 오일유량조절 뜨개(10)를 들어올려 상기 밸브시트공(9)의 개방량을 변화시킬 수 있도록 상기 오일유량조절 뜨개(10)를 지지하는 바이메탈체(11)와;When the engine proceeds from a low speed operation to a high speed operation and the oil temperature rises, the oil is bent upward and deformed to lift the oil flow control knitting 10 so as to change the opening amount of the valve seat hole 9. A bimetal body 11 for supporting the flow regulating knitting 10; 상기 오일유량조절 뜨개(10)가 상기 밸브시트공(9)에 밀착하는 방향으로 힘을 가하도록 상기 원통체(8) 내에 마련되는 스프링(14); 을 포함하여 구성되어 있는 것을 특징으로 하는 실린더헤드에의 오일급송량 조절장치.A spring 14 provided in the cylindrical body 8 such that the oil flow adjusting knitting 10 exerts a force in a direction in close contact with the valve seat hole 9; Oil supply amount control device to the cylinder head, characterized in that comprises a. 제 1 항에 있어서,The method of claim 1, 상기 오일유량조절 뜨개는 밸브시트공을 개폐하는 원추형부를 구비하고 있는 것을 특징으로 하는 실린더헤드에의 오일급송량 조절장치.And the oil flow rate adjusting float has a conical portion for opening and closing the valve seat hole. 제 2 항에 있어서,The method of claim 2, 상기 원추형부에는 밸브시트공을 폐쇄하고 있는 상태하에서 유량의 통과를 허용하는 최소유량홈이 형성되어 있는 것을 특징으로 하는 실린더헤드에의 오일급송량 조절장치.And the conical portion is provided with a minimum flow rate groove for allowing passage of the flow rate under the closed state of the valve seat hole. 삭제delete 제 1 항에 있어서,The method of claim 1, 상기 바이메탈체는 열팽창율이 상이한 2매의 금속판을 접합하여 형성한 것을 특징으로 하는 실린더헤드에의 오일급송량 조절장치.And said bimetal body is formed by joining two metal plates having different thermal expansion coefficients to each other.
KR10-2001-0070081A 2001-11-12 2001-11-12 Oil supplied to cylinder head controling device KR100489117B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55107030A (en) * 1979-02-07 1980-08-16 Hino Motors Ltd Engine of variable compression ratio
JPS6082546U (en) * 1983-11-15 1985-06-07 トヨタ自動車株式会社 Dual cooling internal combustion engine
JPS6194225U (en) * 1984-11-28 1986-06-18
JPS63147917A (en) * 1986-12-08 1988-06-20 Kubota Ltd Oil-cooled engine
JPH084900A (en) * 1994-06-14 1996-01-12 Isuzu Motors Ltd Cylinder head gasket
JPH0932551A (en) * 1995-07-25 1997-02-04 Kubota Corp Water-cooling device of engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55107030A (en) * 1979-02-07 1980-08-16 Hino Motors Ltd Engine of variable compression ratio
JPS6082546U (en) * 1983-11-15 1985-06-07 トヨタ自動車株式会社 Dual cooling internal combustion engine
JPS6194225U (en) * 1984-11-28 1986-06-18
JPS63147917A (en) * 1986-12-08 1988-06-20 Kubota Ltd Oil-cooled engine
JPH084900A (en) * 1994-06-14 1996-01-12 Isuzu Motors Ltd Cylinder head gasket
JPH0932551A (en) * 1995-07-25 1997-02-04 Kubota Corp Water-cooling device of engine

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