KR20040031578A - oil supply structure for an engine cylinder head - Google Patents
oil supply structure for an engine cylinder head Download PDFInfo
- Publication number
- KR20040031578A KR20040031578A KR1020030061048A KR20030061048A KR20040031578A KR 20040031578 A KR20040031578 A KR 20040031578A KR 1020030061048 A KR1020030061048 A KR 1020030061048A KR 20030061048 A KR20030061048 A KR 20030061048A KR 20040031578 A KR20040031578 A KR 20040031578A
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- South Korea
- Prior art keywords
- oil
- cylinder head
- oil supply
- intake
- journal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005461 lubrication Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 12
- 230000008602 contraction Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 113
- 239000010687 lubricating oil Substances 0.000 description 2
- 241001553178 Arachis glabrata Species 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
Classifications
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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
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
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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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
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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
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
- F01M2001/064—Camshaft with passageways
-
- 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
- F01M11/02—Arrangements of lubricant conduits
- F01M2011/023—Arrangements of lubricant conduits between oil sump and cylinder head
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
본 발명은 유압을 작동 동력원으로 사용하는 가변밸브타이밍장치를 채용한 엔진에서 간단한 구조로 실린더헤드 윤활용 오일과 가변밸브타이밍장치 작동용 오일을 원활하고 깨끗한 상태로 공급할 수 있도록 하며, 가변밸브타이밍장치를 구성하는 오일온도센서 및 오일컨트롤밸브의 장착 및 정비가 매우 용이하게 이루어지도록 한다.The present invention provides a simple structure in an engine employing a variable valve timing device using hydraulic pressure as an operating power source, so that the oil for cylinder head lubrication and the variable valve timing device can be smoothly and cleanly supplied, and the variable valve timing device is provided. It is very easy to install and maintain the oil temperature sensor and oil control valve.
Description
본 발명은 엔진의 실린더헤드에 오일을 공급하는 구조에 관한 것으로서, 보다 상세하게는 실린더헤드 윤활용 오일과 가변밸브타이밍장치를 작동시키기 위한 오일을 공급하도록 하는 기술에 관한 것이다.The present invention relates to a structure for supplying oil to a cylinder head of an engine, and more particularly, to a technique for supplying oil for operating a cylinder head lubrication oil and a variable valve timing device.
엔진의 실린더헤드에는 캠샤프트가 설치되어 엔진이 작동되는 동안 계속해서 회전되면서 밸브를 개폐하므로 윤활용 오일이 항상 원활하게 공급되어야 한다. 또한, 밸브의 개폐시기를 진각 또는 지각시키기 위해 사용되는 가변밸브타이밍장치 중에는 유압을 그 작동 동력원으로 이용하는 것이 있다.The cylinder head of the engine is installed with a camshaft to open and close the valve while the engine continues to run, so lubricating oil must always be supplied smoothly. In addition, some of the variable valve timing apparatuses used for advancing or retarding the opening / closing time of a valve may use hydraulic pressure as its operating power source.
따라서, 상기한 바와 같이 유압을 작동 동력원으로 사용하는 가변밸브타이밍장치를 구비한 엔진에서는 실린더헤드의 윤활용 오일과 가변밸브타이밍장치용 오일을 모두 원활하게 공급하여야 한다.Therefore, in the engine having a variable valve timing device using hydraulic pressure as an operating power source, it is necessary to smoothly supply both the lubricating oil of the cylinder head and the oil for the variable valve timing device.
본 발명은 유압을 작동 동력원으로 사용하는 가변밸브타이밍장치를 채용한 엔진에서 실린더헤드 윤활용 오일과 가변밸브타이밍장치 작동용 오일을 원활하게 공급할 수 있도록 하고, 가변밸브타이밍장치의 구성부품을 용이하게 장착 및 정비할 수 있도록 하는 엔진의 실린더헤드 오일공급 구조를 제공함에 그 목적이 있다.The present invention enables smooth supply of cylinder head lubrication oil and variable valve timing device operation oil in an engine employing a variable valve timing device using hydraulic pressure as an operating power source, and easily mounts components of the variable valve timing device. And to provide a cylinder head oil supply structure of the engine for maintenance.
도 1은 본 발명에 따른 엔진의 실린더헤드 오일공급 구조를 도시한 것으로서 실린더헤드의 전방에서 관측한 도면,1 is a view illustrating a cylinder head oil supply structure of an engine according to the present invention, viewed from the front of a cylinder head,
도 2는 도 1의 실린더헤드를 하측에서 관측한 도면으로서 오일챔버의 형상을 상세히 도시한 도면,FIG. 2 is a view of the cylinder head of FIG. 1 viewed from below, showing the shape of the oil chamber in detail; FIG.
도 3은 도 1의 우측면에서 관측한 도면,3 is a view observed from the right side of FIG.
도 4는 캠샤프트저널용오일통로의 흡기측저널부도입구간과 배기측저널부도입구간까지의 구조를 도시한 도면,4 is a view showing a structure from an intake side journal part introduction section and an exhaust side journal part introduction section of an oil passage for a camshaft journal;
도 5는 캠샤프트저널용오일통로의 흡기캠샤프트구간과 배기캠샤프트구간의 구조를 공동으로 설명하는 것으로서 베어링캡홈과 유입관통홀 및 중공부를 도시한 도면,5 is a view illustrating jointly the structure of an intake cam shaft section and an exhaust cam shaft section of an oil passage for a cam shaft journal, showing a bearing cap groove, an inflow through hole, and a hollow portion;
도 6은 도 5의 캠샤프트의 일부를 도시한 사시도로서 유입관통홀 및 유출관통홀을 도시한 도면,FIG. 6 is a perspective view of a part of the cam shaft of FIG. 5, illustrating an inflow through hole and an outflow through hole; FIG.
도 7은 도 5의 베어링캡의 저면도이다.7 is a bottom view of the bearing cap of FIG. 5.
<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>
1; 실린더블록 3; 실린더헤드One; Cylinder block 3; Cylinder head
5; 메인오일갤러리 7; 오일챔버5; Main Oil Gallery 7; Oil chamber
9; 캠샤프트저널용오일통로 11; 흡기측오일공급통로9; Oil passage 11 for camshaft journals; Intake side oil supply passage
13; 배기측오일공급통로 15; 수축부13; Exhaust side oil supply passage 15; Contraction
17; 챔버유입부 19; 챔버유출부17; Chamber inlet 19; Chamber outlet
21; 오일온도센서 23; 온도센서구간21; Oil temperature sensor 23; Temperature sensor section
25; 오일컨트롤밸브 27; 컨트롤밸브구간25; Oil control valve 27; Control valve section
29; 가변밸브타이밍액츄에이터29; Variable Valve Timing Actuator
31; 액츄에이터구간 33; 캠샤프트저널31; Actuator section 33; Camshaft Journal
35; 진각오일공급부 37; 지각오일공급부35; Shell oil supply unit 37; Crust oil supply
39; 캠샤프트 41; 흡기측저널부분39; Camshaft 41; Intake side journal part
43; 배기측저널부분 45; 흡기측저널부도입구간43; Exhaust side journal section 45; Intake side journal part introduction section
47; 배기측저널부도입구간 53; 베어링캡47; Exhaust side journal part introduction section 53; Bearing cap
55; 베어링캡홈 57; 유입관통홀55; Bearing cap groove 57; Inflow through hole
59; 중공부 61; 유출관통홀59; Hollow 61; Outflow through hole
63; 캡돌출부 65; 캡보울트홀63; Cap protrusion 65; Cap Bolt Hole
67; 오일필터 69; 오일필터삽입부67; Oil filter 69; Oil filter insert
71; 직경축소부71; Diameter reduction part
상기한 바와 같은 목적을 달성하기 위한 본 발명 엔진의 실린더헤드 오일공급 구조는 실린더블록의 상부에 접하는 실린더헤드의 하부에 상기 실린더블록의 메인오일갤러리로부터 오일을 공급 받도록 형성된 오일챔버와;The cylinder head oil supply structure of the engine of the present invention for achieving the above object is an oil chamber formed to receive oil from the main oil gallery of the cylinder block in the lower portion of the cylinder head in contact with the upper portion of the cylinder block;
캠샤프트저널부의 윤활을 위해 상기 오일챔버로부터 분지되는 캠샤프트저널용오일통로와;An oil passage for the cam shaft journal branched from the oil chamber for lubrication of the cam shaft journal portion;
가변밸브타이밍장치의 작동을 위해 상기 오일챔버로부터 분지되는 오일공급통로를 포함하여 구성된 것을 특징으로 한다.It characterized in that it comprises an oil supply passage branched from the oil chamber for the operation of the variable valve timing device.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
도 1은 본 발명에 따른 실린더헤드 오일공급 구조를 도시한 개략도로서, 실린더블록(1)의 상부에 접하는 실린더헤드(3)의 하부에 상기 실린더블록(1)의 메인오일갤러리(5)로부터 오일을 공급 받도록 형성된 오일챔버(7)와, 캠샤프트의 윤활을 위해 상기 오일챔버(7)로부터 분지되는 캠샤프트저널용오일통로(9)와, 흡기측 가변밸브타이밍장치의 작동을 위해 상기 오일챔버(7)로부터 분지되는 흡기측오일공급통로(11)와, 배기측 가변밸브타이밍장치의 작동을 위해 상기 오일챔버(7)로부터 분지되는 배기측오일공급통로(13)가 구비되어 있다.1 is a schematic view showing a cylinder head oil supply structure according to the present invention, wherein the oil from the main oil gallery (5) of the cylinder block (1) in the lower portion of the cylinder head (3) in contact with the upper portion of the cylinder block (1) An oil chamber 7 formed to receive the oil, an oil passage 9 for the camshaft journal branched from the oil chamber 7 for lubrication of the camshaft, and an operation of the oil chamber for operation of the intake-side variable valve timing device. An intake side oil supply passage 11 branched from (7) and an exhaust side oil supply passage 13 branched from the oil chamber 7 for operation of the exhaust side variable valve timing device are provided.
참고로, 본 실시예에서는 엔진의 흡기측 및 배기측 밸브 타이밍을 모두 가변시킬 수 있는 엔진을 예로 들고 있으나, 어느 한쪽의 밸브 타이밍만을 가변시킬 수 있도록 된 엔진에 있어서도, 이하에서 기술되는 모든 기술들이 함께 적용될 수 있음은 물론이다.For reference, in the present embodiment, an engine capable of changing both the intake and exhaust valve timings of the engine is taken as an example, but even in an engine capable of changing only one valve timing, all techniques described below are Of course, it can be applied together.
또한, 상기 가변밸브타이밍장치로는 밸브타이밍을 연속적으로 가변시킬 수 있는 연속가변밸브타이밍장치가 사용될 수 있으며, 상기와 같은 연속가변밸브타이밍장치를 구성하는 액츄에이터에도 상기와 같은 흡기측오일공급통로 또는 배기측오일공급통로를 통해 오일을 공급할 수 있다.In addition, the variable valve timing device may be a continuous variable valve timing device capable of continuously varying the valve timing, and the actuator constituting the continuous variable valve timing device as described above in the intake side oil supply passage or Oil can be supplied through the exhaust oil supply passage.
상기 오일챔버(7)는 실린더헤드(3)의 하측에서 관측한 형상이 도 2에 도시된 것처럼 실린더헤드(3)의 길이방향을 따라 길게 형성된 홈으로 이루어지되, 상기 홈의 중앙부분에는 홈의 폭이 좁아지도록 형성된 수축부(15)가 구비되어 마치 땅콩의 모양과 같이 형성되어 있다.The oil chamber 7 is formed of a groove formed along the longitudinal direction of the cylinder head 3, as shown in Figure 2, the shape observed from the lower side of the cylinder head 3, the center of the groove Shrinkage portion 15 is formed so that the width is narrow is formed as if the shape of peanuts.
상기 실린더블록(1)의 메인오일갤러리(5)는 상기 홈의 상기 수축부(15)를 기준으로 실린더헤드(3) 내측인 챔버유입부(17)와 연통되고, 상기 캠샤프트저널용오일통로(9)와 흡기측오일공급통로(11) 및 배기측오일공급통로(13)는 상기 홈에 상기 수축부(15)를 기준으로 실린더헤드(3) 외측의 챔버유출부(19)에 연통되어 있다.The main oil gallery 5 of the cylinder block 1 communicates with the chamber inflow portion 17 inside the cylinder head 3 based on the contraction portion 15 of the groove, and the oil passage for the camshaft journal. (9) and the intake side oil supply passage 11 and the exhaust side oil supply passage 13 communicate with the chamber outlet 19 outside the cylinder head 3 on the basis of the contraction portion 15 in the groove. have.
즉, 메인오일갤러리(5)로부터 공급된 오일은 상기 챔버유입부(17)로 공급되어 상기 수축부(15)를 지나 상기 챔버유출부(19)를 통해 상기 캠샤프트저널용오일통로(9)와 흡기측오일공급통로(11) 및 배기측오일공급통로(13)로 공급되도록 된 구조이다.That is, the oil supplied from the main oil gallery 5 is supplied to the chamber inlet 17, passes through the contraction 15, and through the chamber outlet 19, the oil passage 9 for the camshaft journal. And the intake side oil supply passage 11 and the exhaust side oil supply passage 13.
따라서, 상기 메인오일갤러리(5)로부터 공급된 오일은 상기 오일챔버(7)에서 충분한 양이 확보된 후 안정적인 흐름으로 원활하게 상기 캠샤프트저널용오일통로(9)와 흡기측오일공급통로(11) 및 배기측오일공급통로(13)로 공급된다.Accordingly, the oil supplied from the main oil gallery 5 is secured in a stable flow after a sufficient amount is secured in the oil chamber 7, and the cam shaft journal oil passage 9 and the intake side oil supply passage 11 are smoothly flown. And the exhaust side oil supply passage (13).
상기 가변밸브타이밍장치의 작동을 위해 오일을 공급하는 흡기측오일공급통로(11)와 상기 배기측오일공급통로(13)는 각각 오일온도센서(21)를 경유하도록 형성된 온도센서구간(23)과, 상기 온도센서구간(23)에 연통되어 오일컨트롤밸브(25)로 오일을 공급하는 컨트롤밸브구간(27)과, 상기 오일컨트롤밸브(25)로부터 가변밸브타이밍액츄에이터(29)로 오일을 공급하는 액츄에이터구간(31)이 차례로 배치된 구조이다.The intake side oil supply passage 11 and the exhaust side oil supply passage 13 for supplying oil for operation of the variable valve timing device are respectively formed with a temperature sensor section 23 formed through the oil temperature sensor 21; And a control valve section 27 communicating with the temperature sensor section 23 to supply oil to the oil control valve 25, and supplying oil from the oil control valve 25 to the variable valve timing actuator 29. The actuator section 31 is arranged in this order.
상기 온도센서구간(23)은 실린더헤드(3)의 측면을 향하여 상기 오일챔버(7)로부터 상측으로 경사지게 형성되었다. 즉, 도 1에 도시된 것처럼, 상기 흡기측오일공급통로(11)의 온도센서구간(23)은 상기 오일챔버(7)로부터 실린더헤드(3)의 우측 상방으로 경사지게 형성되고, 배기측오일공급통로(13)의 온도센서구간(23)은 실린더헤드(3)의 좌측 상방으로 경사지게 형성되어 있다.The temperature sensor section 23 is formed to be inclined upward from the oil chamber 7 toward the side of the cylinder head (3). That is, as shown in FIG. 1, the temperature sensor section 23 of the intake side oil supply passage 11 is formed to be inclined upwardly to the right of the cylinder head 3 from the oil chamber 7, and to supply the exhaust side oil. The temperature sensor section 23 of the passage 13 is inclined upwardly to the left of the cylinder head 3.
상기와 같이 온도센서구간(23)이 실린더헤드(3)의 좌우 측면 상방으로 각각 형성됨에 의해 가변밸브타이밍액츄에이터(29)로 제공되는 오일의 온도를 측정하는 오일온도센서(21)를 실린더헤드(3)의 측면 상방으로부터 실린더헤드(3)의 내측 하방을 향해 장착할 수 있게 되고, 이와 같은 구조는 오일온도센서(21)를 설치하고 정비하기에 매우 간단하고 편리하게 한다.As described above, since the temperature sensor section 23 is formed above the left and right sides of the cylinder head 3, the oil temperature sensor 21 for measuring the temperature of the oil provided to the variable valve timing actuator 29 is measured by the cylinder head ( From the upper side of the 3) can be mounted toward the inner lower side of the cylinder head (3), such a structure is very simple and convenient to install and maintain the oil temperature sensor (21).
상기 컨트롤밸브구간(27)은 실린더헤드(3)의 내측을 향하며, 상기 온도센서구간(23)으로부터 실린더헤드(3) 상측의 캠샤프트저널(33)을 향하여 경사지게 형성되어 있고, 상기 액츄에이터구간(31)은 상기 컨트롤밸브구간(27)으로부터 상기 캠샤프트저널(33)을 향하여 상측으로 경사지게 형성된 진각오일공급부(35)와 지각오일공급부(37)를 포함하여 구성되어 있다.The control valve section 27 is inclined toward the inner side of the cylinder head 3, and is inclined toward the cam shaft journal 33 above the cylinder head 3 from the temperature sensor section 23, the actuator section ( 31 includes an advance oil supply unit 35 and a crust oil supply unit 37 formed to be inclined upwardly from the control valve section 27 toward the cam shaft journal 33.
따라서, 상기 컨트롤밸브구간(27)과 진각오일공급부(35) 및지각오일공급부(37)가 도 1에 도시된 바와 같이 상기 오일온도센서(21)구간으로부터 캠샤프트저널(33)을 향하여 대략 하나의 직선상으로 배치되므로, 오일컨트롤밸브(25)는 실린더헤드(3)의 측면으로부터 상기와 같이 형성되는 직선을 가로지르는 방향으로 삽입하여 장착될 수 있는 구조이다.Accordingly, the control valve section 27, the true oil supply unit 35 and the crust oil supply unit 37 are approximately one from the oil temperature sensor 21 section toward the camshaft journal 33 as shown in FIG. Since it is arranged in a straight line of, the oil control valve 25 is a structure that can be mounted by inserting in the direction crossing the straight line formed as described above from the side of the cylinder head (3).
상기와 같은 구조는 도시되지 않은 엔진컨트롤전자제어유닛으로부터 전기적인 신호를 받아 상기 컨트롤밸브구간(27)으로부터의 오일을 상기 진각오일공급부(35) 또는 지각오일공급부(37)에 선택적으로 제공하는 오일컨트롤밸브(25)를 실린더헤드(3)에 설치 및 정비하기에 매우 유리하게 한다.The above structure receives an electrical signal from an engine control electronic control unit (not shown) and selectively provides oil from the control valve section 27 to the true oil supply unit 35 or the earthquake oil supply unit 37. It is very advantageous to install and maintain the control valve 25 in the cylinder head 3.
참고로, 상기와 같이 진각오일공급부(35) 또는 지각오일공급부(37)를 통해 공급된 오일은 캠샤프트(39)의 내부를 통해 캠샤프트(39)에 결합되어 있는 가변밸브타이밍액츄에이터(29)로 공급되게 된다.For reference, the variable valve timing actuator 29 coupled to the camshaft 39 through the inside of the camshaft 39 is supplied with the oil through the true oil supply part 35 or the crustal oil supply part 37 as described above. To be supplied.
상기 캠샤프트저널용오일통로(9)는 상기 오일챔버(7)로부터 상측으로 분지된 상태에서 흡기측캠샤프트를 지지하는 한 개의 흡기측저널부분(41)과 배기측캠샤프트를 지지하는 한 개의 배기측저널부분(43)으로 각각 연통되도록 분지된 흡기측저널부도입구간(45) 및 배기측저널부도입구간(47)과, 상기 흡기측저널부도입구간(45)과 연통되어 흡기측캠샤프트의 내부를 통해 흡기측캠샤프트와 접촉하는 다른 흡기측저널부분(41)으로 오일을 공급하도록 된 흡기캠샤프트구간과, 상기 배기측저널부도입구간(47)과 연통되어 배기측캠샤프트의 내부를 통해 배기측캠샤프트와 접촉하는 다른 배기측저널부분(43)으로 오일을 공급하도록 된 배기캠샤프트구간으로 이루어져 있다.The oil passage 9 for the camshaft journal has one intake side journal portion 41 for supporting the intake side camshaft and one exhaust side for supporting the exhaust side camshaft while branched upward from the oil chamber 7. The intake side journal part introduction section 45 and the exhaust side journal part introduction section 47, which are branched to communicate with the journal portion 43, respectively, and the intake side journal part introduction section 45, communicate with the inside of the intake side camshaft. An intake camshaft section for supplying oil to another intake side journal portion 41 in contact with the intake side camshaft through the exhaust side camshaft through the interior of the exhaust side camshaft in communication with the exhaust side journal section introduction section 47. It consists of an exhaust camshaft section for supplying oil to the other exhaust side journal portion 43 in contact with the shaft.
도 4에는 상기 캠샤프트저널용오일통로(9)의 흡기측저널부도입구간(45)과 배기측저널부도입구간(47)까지의 구조를 간략하게 도시하고 있는바, 상기 흡기측저널부도입구간(45) 및 배기측저널부도입구간(47)은 실린더헤드의 2번 저널부(도면상 좌측으로부터 2번째 저널부)로 연통되게 형성되어 있다.FIG. 4 briefly shows a structure from the intake side journal part introduction section 45 and the exhaust side journal part introduction section 47 of the cam shaft journal oil passage 9, where the intake side journal part introduction is made. The section 45 and the exhaust side journal part introduction section 47 are formed in communication with the second journal section (second journal section from the left in the drawing) of the cylinder head.
한편, 도 5와 도 6에는 상기 흡기캠샤프트구간과 배기캠샤프트구간의 구조를 공동으로 설명하고 있다.5 and 6 jointly describe the structures of the intake cam shaft section and the exhaust cam shaft section.
즉, 상기 흡기캠샤프트구간과 배기캠샤프트구간은 각각 상기 흡·배기측저널부도입구간(45,47)과 각각 연통되도록 베어링캡(53)에 흡기캠샤프트 또는 배기캠샤프트를 감싸는 방향으로 길게 형성된 베어링캡홈(55)과, 상기 베어링캡홈(55)과 연통되도록 상기 흡·배기캠샤프트에 각각 반경방향으로 형성된 유입관통홀(57)과, 상기 유입관통홀(57)과 연통되도록 흡·배기캠샤프트의 각각의 중앙에 길이방향을 따라 형성된 중공부(59)와, 상기 흡·배기캠샤프트를 지지하는 다른 흡·배기측저널부분(41,43)과 만나는 흡·배기캠샤프트의 부분에 반경방향으로 상기 중공부(59)와 각각 연통되도록 형성된 유출관통홀(61)로 이루어져 있다.That is, the intake cam shaft section and the exhaust cam shaft section are long in the direction surrounding the intake cam shaft or the exhaust cam shaft in the bearing cap 53 so as to communicate with the intake / exhaust side journal part introduction sections 45 and 47, respectively. The formed bearing cap groove 55, the inlet and exhaust hole 57 formed in the radial direction in each of the intake and exhaust cam shaft to communicate with the bearing cap groove 55, and the intake and exhaust to communicate with the inlet through hole 57 On the part of the intake / exhaust camshaft which meets the hollow part 59 formed in the center of each camshaft along the longitudinal direction, and the other intake / exhaust side journal parts 41 and 43 which support the intake / exhaust camshaft Outflow through hole 61 formed to communicate with the hollow portion 59 in the radial direction, respectively.
여기서, 상기 베어링캡홈(55)은 도 5와 도 7에 상세히 도시된 바와 같이 베어링캡(53)의 일측으로 돌출 형성된 캡돌출부(63) 하측면에서 상기 흡기측저널부도입구간(45) 또는 배기측저널부도입구간(47)과 연결되고, 상기 베어링캡의 캡보울트홀(65)의 일측 둘레를 우회하여 상기 흡·배기캠샤프트를 감싸도록 형성되어 있다.Here, the bearing cap groove 55 is the intake side journal portion introduction section 45 or exhaust from the lower side of the cap projection portion 63 protruding to one side of the bearing cap 53 as shown in detail in FIGS. 5 and 7. It is connected to the side journal portion introduction section 47, and is formed to surround the intake / exhaust cam shaft by bypassing a circumference of one side of the cap bolt hole 65 of the bearing cap.
따라서, 캠샤프트(39)의 윤활을 위해 공급되는 오일은 상기 오일챔버(7)로부터 상기 흡기측저널부도입구간(45)과 배기측저널부도입구간(47)으로 각각 공급된 후, 상기 베어링캡(53)에 형성되어 있는 베어링캡홈(55)을 통해 상기 유입관통홀(57)로 공급되고, 상기 중공부(59)를 통해 이동하여 상기 유출관통홀(61)로 배출됨으로써, 상기 캠샤프트(39)를 지지하는 다른 흡·배기측저널부분(41,43)과 만나는 부분의 윤활이 이루어지도록 하는 것이다.Therefore, the oil supplied for lubrication of the camshaft 39 is supplied from the oil chamber 7 to the intake side journal part introduction section 45 and the exhaust side journal part introduction section 47, respectively, and then the bearing The camshaft is supplied to the inflow through hole 57 through a bearing cap groove 55 formed in the cap 53, and moves through the hollow part 59 to be discharged into the outflow through hole 61. Lubrication of the part where it meets the other intake / exhaust side journal parts 41 and 43 supporting 39 is performed.
한편, 상기 실린더블록(1)의 메인오일갤러리(5)에는 도 1 및 도 3에 도시된 바와 같이 상기 오일챔버(7)로 공급되는 오일을 여과하는 오일필터(67)를 설치하여, 실린더헤드(3)로 공급되는 오일을 더욱 깨끗한 상태로 할 수 있다.Meanwhile, as shown in FIGS. 1 and 3, the main oil gallery 5 of the cylinder block 1 is provided with an oil filter 67 for filtering oil supplied to the oil chamber 7. The oil supplied to (3) can be made more clean.
상기 오일필터(67)가 설치되는 상세구조를 보면, 상기 실린더블록(1)의 메인오일갤러리(5)에 실린더블록(1)의 상측면으로부터 수직하게 하측방향으로 오일필터삽입부(69)를 형성하고, 상기 오일필터삽입부(69)에는 상기 오일필터(67)의 상측단이 상기 챔버유입부 주변(73)에 의해 가압되어 실린더헤드(3)의 하측면과 동일평면상에 위치하도록 상기 오일필터(67)의 하측 삽입량을 제한하는 직경축소부(71)를 구비하였다.In the detailed structure in which the oil filter 67 is installed, the oil filter insert 69 is vertically lowered from the upper surface of the cylinder block 1 to the main oil gallery 5 of the cylinder block 1. And an upper end of the oil filter 67 is pressed by the periphery of the chamber inlet 73 to the oil filter inserting part 69 so as to be located on the same plane as the lower surface of the cylinder head 3. The diameter reduction part 71 which limits the insertion amount of the lower side of the oil filter 67 was provided.
즉, 상기 오일필터(67)는 실린더블록(1)의 상측에서 상기 오일필터삽입부(69)에 끼워 넣은 후 실린더헤드(3)를 실린더블록(1)의 상측에 조립하면, 상기 오일필터(67)의 상측단은 상기한 챔버유입부 주변(73)에 의해 가압되고, 하측단은 상기 직경축소부(71)에 의해 고정됨으로써, 오일필터(67)의 장착작업이 매우 간단하게 완료되게 된다.That is, the oil filter 67 is inserted into the oil filter inserting portion 69 from the upper side of the cylinder block 1, and then the cylinder head 3 is assembled to the upper side of the cylinder block 1, the oil filter ( The upper end of the 67 is pressurized by the chamber inlet periphery 73 and the lower end is fixed by the diameter reducing part 71, so that the mounting operation of the oil filter 67 is completed very simply. .
이상과 같이 본 발명에 의하면, 유압을 작동 동력원으로 사용하는 가변밸브타이밍장치를 채용한 엔진에서 간단한 구조로 실린더헤드 윤활용 오일과 가변밸브타이밍장치 작동용 오일을 원활하고 깨끗한 상태로 공급할 수 있도록 하며, 가변밸브타이밍장치를 구성하는 오일온도센서 및 오일컨트롤밸브의 장착 및 정비가 매우 용이하게 이루어지도록 한다.As described above, according to the present invention, in an engine employing a variable valve timing device using hydraulic pressure as an operating power source, the cylinder head lubrication oil and the variable valve timing device operating oil can be smoothly and cleanly supplied, The oil temperature sensor and the oil control valve constituting the variable valve timing device should be easily installed and maintained.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7322327B1 (en) | 2006-11-01 | 2008-01-29 | Hyundai Motor Company | Lubrication structure of camshaft with variable valve timing |
| US7484489B2 (en) | 2006-08-23 | 2009-02-03 | Hyundai Motor Company | Dual oil feed structure of cylinder de-activation engine for vehicle |
| US8001937B2 (en) | 2007-12-14 | 2011-08-23 | Hyundai Motor Company | Oil gallery for variable valve timing apparatus of a cylinder head |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100993380B1 (en) | 2007-12-14 | 2010-11-09 | 기아자동차주식회사 | Cylinder head with oil supply structure and oil supply line for continuous variable valve timing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7484489B2 (en) | 2006-08-23 | 2009-02-03 | Hyundai Motor Company | Dual oil feed structure of cylinder de-activation engine for vehicle |
| US7322327B1 (en) | 2006-11-01 | 2008-01-29 | Hyundai Motor Company | Lubrication structure of camshaft with variable valve timing |
| US8001937B2 (en) | 2007-12-14 | 2011-08-23 | Hyundai Motor Company | Oil gallery for variable valve timing apparatus of a cylinder head |
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