KR20040039899A - Oil filter of oil circuit for preventing mis-operation of CVVT system - Google Patents
Oil filter of oil circuit for preventing mis-operation of CVVT system Download PDFInfo
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- KR20040039899A KR20040039899A KR1020020068136A KR20020068136A KR20040039899A KR 20040039899 A KR20040039899 A KR 20040039899A KR 1020020068136 A KR1020020068136 A KR 1020020068136A KR 20020068136 A KR20020068136 A KR 20020068136A KR 20040039899 A KR20040039899 A KR 20040039899A
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- oil
- cvvt
- advance
- filter
- cylinder head
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34436—Features or method for avoiding malfunction due to foreign matters in oil
- F01L2001/3444—Oil filters
Abstract
Description
본 발명은 연속가변 밸브타이밍 시스템의 오작동방지를 위한 오일 회로의 오일필터에 관한 것으로서, 더욱 상세하게는 엔진의 운전 중에 실린더 헤드 상면에서 발생하는 불순물(주로 금속분말, 카본)이 연속가변 밸브타이밍(CVVT) 오일회로 상의 오일 제어 밸브(OCV)와 CVVT페이스 컨버터에 유입되어 CVVT 시스템의 오작동을 일으키는 현상을 방지하기 위해 실린더 헤드 내 CVVT 진각,지각 오일홀과 흡기 캠축 내 CVVT 진각,지각 오일통로에 오일필터를 장착하여 CVVT페이스 컨버터로의 불순물의 유입을 방지할 수 있는 연속가변 밸브타이밍 시스템의 오작동방지를 위한 오일 회로의 오일필터에 관한 것이다.The present invention relates to an oil filter of an oil circuit for preventing malfunction of a continuously variable valve timing system, and more particularly, impurities (mainly metal powder, carbon) generated on an upper surface of a cylinder head during operation of an engine are continuously variable valve timing ( CVVT) Advance to oil control valve (OCV) and CVVT face converter on oil circuit to prevent malfunction of CVVT system, CVVT advance, cylinder oil hole in cylinder head and CVVT advance in intake camshaft, oil in perceptual oil passage The present invention relates to an oil circuit of an oil circuit for preventing malfunction of a continuously variable valve timing system that can be equipped with a filter to prevent the introduction of impurities into a CVVT face converter.
일반적으로, 출력향상, 연비 및 배출저감을 목적으로 개발된 CVVT(Continuously Variable Valve Timing, 연속가변 밸브타이밍) 시스템이 장착된a-III CVVT 엔진의 경우, 엔진의 마찰면에 유막을 형상하여 마찰저항을 감소시켜 부품의 마모를 방지하고, 마찰열을 냉각시키기 위해서 흡기 밸브타이밍을 진각(Advance) 또는 지각(Retard) (진각범위 0~50°CA)시키기 위하여 CVVT페이스 컨버터(Phase Converter)가 사용되고, 이의 구동은 스풀(Spool Valve)타입의 CVVT 오일 제어 밸브(Oil Control Valve : OCV)에 의해 작동되는 유압회로에 의해 제어된다.In general, a-III CVVT engines equipped with CVVT (Continuously Variable Valve Timing) systems developed for the purpose of output improvement, fuel economy, and emission reduction, have a frictional resistance by forming an oil film on the friction surface of the engine. CVVT phase converter is used to advancing or retarding the intake valve timing (advanced range 0 to 50 ° CA) to prevent component wear and to reduce frictional heat. The drive is controlled by a hydraulic circuit operated by a spool valve type CVVT oil control valve (OCV).
그리고, 실린더 블록쪽으로부터 유입되는 오일 내의 불순물 등을 제거하기 위하여 오일 제어 밸브 바로 하단부에 OCV 오일필터가 설치되어 있는데, a-III CVVT 엔진의 CVVT오일 회로도를 실린더 블록 쪽으로부터의 유입경로를 표현하면 도 1의 본 발명에 따른 첨부된 도면과 동일하다.In addition, an OCV oil filter is installed directly at the lower end of the oil control valve in order to remove impurities from the oil flowing from the cylinder block side. The CVVT oil circuit diagram of the a-III CVVT engine is expressed as the inflow path from the cylinder block side. Same as the accompanying drawings in accordance with the invention of FIG. 1.
한편, 상기 CVVT오일 회로도의 유입경로는 오일팬→오일스트레이너→오일펌프→릴리프밸브→오일필터→메인오일갤러리→OCV오일필터→오일 제어 밸브→실린더헤드 CVVT 진각,지각 오일홀→캠축 CVVT 진각,지각 오일통로→CVVT페이스 컨버터의 진각,지각 챔버 오일통로로 이루어져 있다.On the other hand, the inlet path of the CVVT oil circuit diagram is oil pan → oil strainer → oil pump → relief valve → oil filter → main oil gallery → OVC oil filter → oil control valve → cylinder head CVVT advance, crust oil hole → cam shaft CVVT advance, It consists of the oil passage of earthquake and tectonic chamber of the crust oil passage → CVVT face converter.
기존의 a-III CVVT 엔진의 CVVT 오일 회로도의 경우, 1차적으로는 오일스트레이너와 오일필터에 의해서 비교적 큰 입자의 불순물(먼지,카본,금속 분말,산화 생성물 등)이 제거되고, 다음으로 OCV 오일필터가 오일 제어 밸브의 하단부에 장착되어 오일 제어 밸브로의 불순물 유입을 방지하게 된다.In the case of the CVVT oil circuit diagram of the existing a-III CVVT engine, the oil strainer and the oil filter remove the relatively large particles of impurities (dust, carbon, metal powder, oxidation products, etc.) first, and then the OCV oil. A filter is mounted at the bottom of the oil control valve to prevent the ingress of impurities into the oil control valve.
그러나, 엔진의 운전 중에 실린더헤드 상면에서 발생하는 불순물이 오일 제어 밸브로부터 CVVT 페이스 컨버터의 진각/지각 챔버 오일통로 사이의 CVVT오일회로 사이에 유입될 경우, CVVT페이스 컨버터와 오일 제어 밸브가 오작동으로 인하여 CVVT시스템의 흡기 밸브타이밍 제어가 제대로 이루어지지 않는 문제점이 있다.However, if the impurities generated on the upper cylinder head during operation of the engine flow between the oil control valve and the CVVT oil circuit between the advancing / retarding chamber oil passage of the CVVT face converter, the CVVT face converter and the oil control valve may malfunction due to malfunction. There is a problem that the intake valve timing control of the CVVT system is not properly performed.
따라서, 본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 실린더 헤드 내 CVVT 진각,지각 오일홀과 흡기 캠축 내 CVVT 진각,지각 오일통로에 필터링 기능을 갖는 원통형상의 그물망과, 일정한 두께를 갖는 원통형상으로 육각형 형상의 중공홀이 구비된 가이드캡으로 이루어진 오일필터를 장착하여 CVVT페이스 컨버터로의 불순물의 유입을 방지할 수 있는 연속가변 밸브타이밍 시스템의 오작동방지를 위한 오일 회로의 오일필터를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, and has a cylindrical mesh with a filtering function in the CVVT advance, the crust oil hole in the cylinder head and the CVVT advance in the intake camshaft, the perceptual oil passage, and has a constant thickness It is equipped with an oil filter consisting of a guide cap with a hexagonal hollow hole in a cylindrical shape to provide an oil filter of an oil circuit for preventing malfunction of a continuously variable valve timing system that can prevent impurities from entering a CVVT face converter. Its purpose is to.
도 1은 본 발명에 따른 실린더 헤드를 나타내는 평면도,1 is a plan view showing a cylinder head according to the present invention,
도 2는 도 1의 'A-A'선 단면도,2 is a cross-sectional view taken along the line 'A-A' of FIG.
도 3은 도 1의 'B-B'선 단면도,3 is a cross-sectional view taken along line 'B-B' of FIG. 1;
도 4는 본 발명에 따른 실린더 헤드 내 CVVT 진각,지각 오일홀에 장착되는 오일필터의 장착위치를 나타내는 개략적인 사시도,Figure 4 is a schematic perspective view showing the mounting position of the oil filter mounted on the CVVT advance, perceptual oil hole in the cylinder head according to the present invention,
도 5는 본 발명에 따른 흡기 캠축 내 CVVT 진각,지각 오일 통로에 장착되는 오일필터의 장착위치를 나타내는 단면도,5 is a cross-sectional view showing the mounting position of the oil filter mounted on the CVVT advance, perceptual oil passage in the intake camshaft according to the present invention;
도 6은 본 발명에 따른 CVVT 진각 챔버 오일통로가 형성된 CVVT페이스 컨버터를 나타내는 단면도,6 is a cross-sectional view showing a CVVT face converter having a CVVT advance chamber oil passage according to the present invention;
도 7은 본 발명에 따른 CVVT 지각 챔버 오일통로가 형성된 CVVT페이스 컨버터를 나타내는 단면도,7 is a cross-sectional view showing a CVVT face converter having a CVVT tectonic chamber oil passage according to the present invention;
도 8은 본 발명에 따른 오일필터를 나타내는 사시도이다.8 is a perspective view showing an oil filter according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
11 : 오일통로 12 : OCV 오일필터11: oil passage 12: OCV oil filter
13 : 오일 제어 밸브(OCV) 14a : CVVT 진각 오일홀13: Oil Control Valve (OCV) 14a: CVVT Advance Oil Hole
14b : CVVT 지각 오일홀 15a : 흡기 캠축14b: CVVT tectonic oil hole 15a: intake camshaft
15b : 배기 캠축 16 : 저널15b: exhaust camshaft 16: journal
17 : CVVT페이스 컨버터(CVVT phase converter)17: CVVT phase converter
18a : CVVT 진각 오일통로 18b : CVVT 지각 오일통로18a: CVVT Crust Oil Passage 18b: CVVT Crust Oil Passage
20 : 오일필터 21 : 그물망20: oil filter 21: mesh
22 : 가이드캡 22a : 중공홀22: guide cap 22a: hollow hole
이하, 상기와 같은 목적을 달성하기 위한 본 발명의 특징에 대해 설명하면 다음과 같다.Hereinafter, the features of the present invention for achieving the above object are as follows.
본 발명은 엔진의 운전 중에 실린더 헤드 상면에 발생하는 불순물이 오일 제어 밸브(13)로부터 CVVT페이스 컨버터(17)의 CVVT 진각,지각 챔버 오일통로 사이에 유입되지 않도록 실린더 헤드 내 CVVT 진각,지각 오일홀(14a,14b)과 흡기 캠축(15a) 내 CVVT 진각,지각 오일통로(18a,18b)에 오일필터(20)가 장착되는 것을 특징으로 한다.The present invention prevents impurities generated on the upper surface of the cylinder head during operation of the engine from the oil control valve 13 to the CVVT advance and the latent chamber oil passages of the CVVT face converter 17. (14a, 14b) and the inlet camshaft (15a) is characterized in that the oil filter 20 is mounted on the CVVT advance, perception oil passages (18a, 18b).
특히, 상기 오일필터(20)는 필터링 기능을 갖는 원통형상의 그물망(21)과,일정한 두께를 갖는 원통형상으로 육각형 형상의 중공홀(22a)이 구비된 가이드캡(22)으로 이루어진 것을 특징으로 한다.In particular, the oil filter 20 is characterized by consisting of a cylindrical netting 21 having a filtering function and a guide cap 22 provided with a hollow hole 22a having a hexagonal shape in a cylindrical shape having a predetermined thickness. .
이하, 첨부도면을 참조하여 본 발명의 구성에 대해 상세하게 설명하면 다음과 같다.Hereinafter, the configuration of the present invention with reference to the accompanying drawings in detail.
도 1은 본 발명에 따른 실린더 헤드를 나타내는 평면도이고, 도 2와 도 3은 도 1의 'A-A'선 단면도와 'B-B'선 단면도를 나타낸다.1 is a plan view showing a cylinder head according to the present invention, Figures 2 and 3 are a cross-sectional view taken along the line 'A-A' and 'B-B' line in FIG.
또한, 도 4는 본 발명에 따른 실린더 헤드 내 CVVT 진각,지각 오일홀에 장착되는 오일필터의 장착위치를 나타내는 개략적인 사시도이고, 도 5는 본 발명에 따른 흡기 캠축 내 CVVT 진각,지각 오일 통로에 장착되는 오일필터의 장착위치를 나타내는 단면도이다.In addition, Figure 4 is a schematic perspective view showing the mounting position of the oil filter is mounted on the CVVT advance, perception oil hole in the cylinder head according to the invention, Figure 5 is a CVVT advance, perception oil passage in the intake camshaft according to the present invention It is sectional drawing which shows the mounting position of the oil filter to be mounted.
한편, 도 6과 도 7은 본 발명에 따른 CVVT 진각, 지각 챔버 오일통로가 형성된 CVVT페이스 컨버터를 나타내는 단면도이고, 도 8은 본 발명에 따른 오일필터를 나타내는 사시도이다.6 and 7 are cross-sectional views illustrating a CVVT face converter having a CVVT advance and a tectonic chamber oil passage according to the present invention, and FIG. 8 is a perspective view illustrating an oil filter according to the present invention.
본 발명은 첨부도면에 도시된 바와 같이, a-III CVVT 엔진의 윤활장치는 오일 팬과, 오일 펌프와, 오일 갤러리와, 엔진 시동시 오일 공급부를 포함하여 이루어져 있으며, 오일회로를 통해 엔진 구동을 이루는 모든 구성부품에 공급되도록 되어 있다.As shown in the accompanying drawings, the lubricator of the a-III CVVT engine includes an oil pan, an oil pump, an oil gallery, and an oil supply unit at engine start-up. It is intended to be supplied to all the components that comprise
이와 같은 구성에 있어서, 엔진 실린더의 하부를 이루는 오일 팬에는 오일이 저장되고, 오일 펌프는 오일 스트레이너를 통해 상기 오일 팬에 저장된 오일을 펌핑하도록 되어 있다.In such a configuration, oil is stored in the oil pan that forms the lower part of the engine cylinder, and the oil pump is configured to pump oil stored in the oil pan through an oil strainer.
상기 오일 갤러리는 오일 펌프에 의해 펌핑된 오일을 엔진의 각 구동부로 운반하도록 되어 있다.The oil gallery is adapted to convey oil pumped by the oil pump to each drive of the engine.
엔진이 구동되는 도중에는, 오일 펌프에 의해 펌핑되는 오일은 오일 갤러리로 운반되고, 오일 통로(11)를 통해 오일 갤러리에서 엔진의 각 구동부로 공급되는데, 캠축(15a,15b)의 경우, 상기 오일 갤러리로부터 오일 통로(11)를 통해 오일을 필터링하는 OCV 오일필터(12)와 유압회로를 작동시키는 오일 제어 밸브(OCV)(13)를 거치고, 진각,지각 오일홀(14a,14b)을 통해 흡기 캠축(15a) 및 배기 캠축(15b)의 각 저널(16)과 CVVT 페이스 컨버터(CVVT phase converter)(17)로 공급되도록 되어 있다.While the engine is running, the oil pumped by the oil pump is transported to the oil gallery and supplied from the oil gallery to each drive of the engine through the oil passage 11, in the case of the camshafts 15a and 15b, the oil gallery. From the OCV oil filter 12 for filtering the oil through the oil passage 11 and the oil control valve (OCV) 13 for operating the hydraulic circuit, and through the inlet and the retarded oil holes 14a and 14b. Each journal 16 and the CVVT phase converter 17 of the 15a and the exhaust camshaft 15b are supplied.
이와 같이 공급된 오일은 엔진의 각 구동부의 접촉면에 유막을 형성하도록 하여 윤활작용을 하게 된다.The oil thus supplied is lubricated by forming an oil film on the contact surface of each drive unit of the engine.
그런데, 엔진의 운전 중에 실린더 헤드 상면에 발생하는 불순물이 오일 제어 밸브(13)로부터 CVVT 페이스 컨버터(17)의 CVVT 진각,지각 챔버 오일통로 사이에 유입될 경우에 상기 CVVT 페이스 컨버터(17)와 오일 제어 밸브(13)가 오작동되지 않도록 실린더 헤드 내 CVVT 진각,지각 오일홀(14a,14b)과 흡기 캠축(15a) 내에 두개의 유로로 이루어진 CVVT 진각,지각 오일통로(18a,18b)에 오일필터(20)를 장착하게 된다.However, when the impurities generated on the upper surface of the cylinder head during the operation of the engine flows from the oil control valve 13 to the CVVT advance and perceptual chamber oil passages of the CVVT face converter 17, the CVVT face converter 17 and the oil. In order to prevent the control valve 13 from malfunctioning, the oil filter (CVTT forward, crust oil passages (14a, 18b) consisting of two flow paths in the CVVT forward, crust oil holes (14a, 14b) and the intake camshaft (15a) in the cylinder head, 20).
본 발명에 따른 바람직한 구현예에 있어서, 상기 오일필터(20)는 필터링 기능을 갖는 원통형상의 그물망(21)과, 일정한 두께를 갖는 원통형상으로 육각형 형상의 중공홀(22a)이 구비된 가이드캡(22)으로 이루어져 있다.In a preferred embodiment according to the present invention, the oil filter 20 has a cylindrical net 21 having a filtering function and a guide cap provided with a hollow hole 22a having a hexagonal shape in a cylindrical shape having a predetermined thickness ( 22).
이와 같이 형성된 오일필터(20)는 각각의 오일통로에 견고하게 고정될 뿐만 아니라 교체가능하도록 되어 있어, 불순물이 오일 제어 밸브(13)와 CVVT 페이스 컨버터(17)에 유입되지 않도록 그물망(21)에서 불순물을 걸르고, 상기 불순물이 일정량 채워진 후, 용이하게 오일통로에서 탈거시켜 교체할 수 있도록 되어 있다.The oil filter 20 formed as described above is not only firmly fixed to each oil passage, but also replaceable, so that impurities are not introduced into the oil control valve 13 and the CVVT face converter 17 in the mesh 21. The impurities are filtered, and after the impurities are filled in a certain amount, they can be easily removed from the oil passage and replaced.
이때, 본 발명의 바람직한 구현예에 있어서, 상기 그물망(21)의 망크기는 오일은 통과시키고, 불순물은 걸러줄 수 있는 크기로 형성된 것이 바람직하며, 상기 가이드캡(22)에는 오일통로에 견고하게 고정될 수 있도록 탄력을 갖는 재질로 되어 있는 것이 바람직하다.At this time, in the preferred embodiment of the present invention, the mesh size of the mesh 21 is preferably formed in a size that can pass the oil, the impurities can be filtered, the guide cap 22 is firmly in the oil passage It is desirable to be made of a material having elasticity to be fixed.
상술한 바와 같이, 본 발명에 따른 실린더 헤드 내 CVVT 진각,지각 오일홀과 흡기 캠축 내 CVVT 진각,지각 오일통로에 오일필터를 장착하여 엔진의 운전 중에 실린더 헤드 상면에서 발생하는 불순물이 CVVT페이스 컨버터로의 유입을 방지할 수 있는 효과가 있다.As described above, by installing an oil filter in the CVVT advance, the perceptual oil hole in the cylinder head and the CVVT advance, the perceptual oil passage in the intake camshaft according to the present invention, impurities generated on the upper surface of the cylinder head during operation of the engine are transferred to the CVVT face converter. There is an effect that can prevent the inflow of.
Claims (2)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020068136A KR20040039899A (en) | 2002-11-05 | 2002-11-05 | Oil filter of oil circuit for preventing mis-operation of CVVT system |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020020068136A KR20040039899A (en) | 2002-11-05 | 2002-11-05 | Oil filter of oil circuit for preventing mis-operation of CVVT system |
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| KR1020020068136A KR20040039899A (en) | 2002-11-05 | 2002-11-05 | Oil filter of oil circuit for preventing mis-operation of CVVT system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101028539B1 (en) * | 2007-12-14 | 2011-04-11 | 기아자동차주식회사 | Oil gallery for continuously variable valve timing apparatus of a cylinder head |
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| JPH1089024A (en) * | 1996-09-13 | 1998-04-07 | Toyota Motor Corp | Valve characteristic variable mechanism for internal combustion engine |
| JP2001214723A (en) * | 2000-01-31 | 2001-08-10 | Suzuki Motor Corp | Structure of oil passage |
| US6293244B1 (en) * | 2000-05-09 | 2001-09-25 | Ford Global Technologies, Inc. | Oil flow control system for engine cylinder head |
| JP2002081307A (en) * | 2000-07-04 | 2002-03-22 | Suzuki Motor Corp | Oil filter structure and oil filter gasket |
| US6484680B2 (en) * | 2001-03-10 | 2002-11-26 | Ford Global Technologies, Inc. | Internal combustion engine with variable cam timing oil filter with restrictor arrangement |
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2002
- 2002-11-05 KR KR1020020068136A patent/KR20040039899A/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089024A (en) * | 1996-09-13 | 1998-04-07 | Toyota Motor Corp | Valve characteristic variable mechanism for internal combustion engine |
| JP2001214723A (en) * | 2000-01-31 | 2001-08-10 | Suzuki Motor Corp | Structure of oil passage |
| US6293244B1 (en) * | 2000-05-09 | 2001-09-25 | Ford Global Technologies, Inc. | Oil flow control system for engine cylinder head |
| JP2002081307A (en) * | 2000-07-04 | 2002-03-22 | Suzuki Motor Corp | Oil filter structure and oil filter gasket |
| US6484680B2 (en) * | 2001-03-10 | 2002-11-26 | Ford Global Technologies, Inc. | Internal combustion engine with variable cam timing oil filter with restrictor arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101028539B1 (en) * | 2007-12-14 | 2011-04-11 | 기아자동차주식회사 | Oil gallery for continuously variable valve timing apparatus of a cylinder head |
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