KR101090799B1 - Oil circuit for continuously variable valve timing system of engine - Google Patents

Oil circuit for continuously variable valve timing system of engine Download PDF

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KR101090799B1
KR101090799B1 KR1020090060300A KR20090060300A KR101090799B1 KR 101090799 B1 KR101090799 B1 KR 101090799B1 KR 1020090060300 A KR1020090060300 A KR 1020090060300A KR 20090060300 A KR20090060300 A KR 20090060300A KR 101090799 B1 KR101090799 B1 KR 101090799B1
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South Korea
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oil
cylinder head
flow path
groove
variable valve
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KR1020090060300A
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Korean (ko)
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KR20110002700A (en
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송오영
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기아자동차주식회사
현대자동차주식회사
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-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
    • F01L1/344Valve-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
    • F01L1/3442Valve-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts
    • F01L1/053Camshafts overhead type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts
    • F01L1/053Camshafts overhead type
    • F01L2001/0537Double overhead camshafts [DOHC]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-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
    • F01L1/344Valve-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
    • F01L1/3442Valve-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
    • F01L2001/34423Details relating to the hydraulic feeding circuit
    • F01L2001/34426Oil control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/06Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/16Controlling lubricant pressure or quantity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/06Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • F01M2001/064Camshaft with passageways
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

본 발명은 오일제어밸브로부터 연속가변 밸브타이밍장치로 오일을 공급하기 위한 진각 및 지각유로를 형성하되, 상기 진각유로를 오일제어밸브로부터 실린더 헤드 상의 캠 샤프트 저널면 일측으로 바로 연결하여 지각오일의 공급루트를 짧게 하여 응답성을 향상시키고, 캠 샤프트의 저널부에 각각의 오일 홈을 형성하여 실린더 헤드와 캠 캡의 각 저널면에 형성되던 종래의 오일 홈을 삭제함으로써 가공원가를 최소화하는 엔진의 연속가변 밸브타이밍장치용 오일회로를 제공한다.The present invention forms an advance and perceptual flow path for supplying oil from the oil control valve to the continuously variable valve timing device, and connects the advance flow path directly from the oil control valve to one side of the cam shaft journal surface on the cylinder head to supply the crust oil. Shortening the route improves responsiveness, and continues the engine by minimizing machining costs by eliminating the conventional oil grooves formed in each journal surface of the cylinder head and cam cap by forming respective oil grooves in the journal portion of the cam shaft. Provided is an oil circuit for a variable valve timing device.

CVVT, 엔진, 오일회로, 진각유로, 지각유로 CVVT, engine, oil circuit, advance passage, tectonic flow

Description

엔진의 연속가변 밸브타이밍장치용 오일회로{OIL CIRCUIT FOR CONTINUOUSLY VARIABLE VALVE TIMING SYSTEM OF ENGINE}OIL CIRCUIT FOR CONTINUOUSLY VARIABLE VALVE TIMING SYSTEM OF ENGINE}

본 발명은 엔진의 연속가변 밸브타이밍장치(Continuously Variable Valve Timing; 이하, CVVT라 함)용 오일회로에 관한 것으로, 보다 상세하게는 오일펌프로부터 토출되는 오일을 오일제어밸브를 거쳐 연속가변 밸브타이밍장치로 오일을 공급하기 위한 엔진의 연속가변 밸브타이밍장치용 오일회로에 관한 것이다. The present invention relates to an oil circuit for a continuously variable valve timing device (hereinafter referred to as CVVT) of an engine, and more particularly, a continuous variable valve timing device for passing oil discharged from an oil pump through an oil control valve. An oil circuit for a continuously variable valve timing device of an engine for supplying oil to a furnace.

일반적으로 CVVT는 배기가스 저감과 연비향상 및 출력 향상을 목적으로 차량에 적용된다.In general, CVVT is applied to vehicles for the purpose of reducing exhaust gas, improving fuel efficiency and improving output.

도 1에는 이러한 CVVT의 개략적인 구성도가 도시되어 있다.1 shows a schematic diagram of such a CVVT.

도시된 바와 같이, CVVT는 캠 샤프트(1)의 회전각을 검출하기 위한 캠 포지션 센서(3)와, 크랭크 샤프트(미도시)의 회전각을 검출하기 위한 크랭크 포지션 센서(5)를 포함한다. 더불어, 크랭크 샤프트(미도시)에 의해 구동되는 타이밍 벨트(7)는 연속가변 밸브타이밍장치(9)을 구동시키게 된다.As shown, the CVVT includes a cam position sensor 3 for detecting the rotational angle of the camshaft 1 and a crank position sensor 5 for detecting the rotational angle of the crankshaft (not shown). In addition, the timing belt 7 driven by the crankshaft (not shown) drives the continuously variable valve timing device 9.

그리고 차량용 ECU(11)(Electronic Control Unit)는 상기 캠 포지션 센서(3) 및 크랭크 포지션 센서(5)에 의해 검출되는 신호를 인가 받아 크랭크 위치에 따라 캠의 밸브 타이밍을 조정하게 되는데, 상기 ECU(11)가 오일제어밸브(Oil Control Valve)(13)에 제어신호를 출력하면, 상기 오일제어밸브(13)의 작동에 의해 공급되는 유압에 의해 상기 연속가변 밸브타이밍장치(9)이 캠의 회전을 제어하게 된다. The vehicle ECU 11 (Electronic Control Unit) receives the signals detected by the cam position sensor 3 and the crank position sensor 5 to adjust the valve timing of the cam according to the crank position. When 11) outputs a control signal to the oil control valve 13, the continuous variable valve timing device 9 rotates the cam by the hydraulic pressure supplied by the operation of the oil control valve 13. To control.

즉, 상기 오일제어밸브(13)에 의해 오일펌프(15)로부터 공급되는 유압을 연속가변 밸브타이밍장치(9)의 진각유로 또는 지각유로로 공급함으로써, 흡기 혹은 배기 밸브 타이밍을 진각 또는 지각시키는 작용을 하는 것이다.That is, by supplying the hydraulic pressure supplied from the oil pump 15 by the oil control valve 13 to the advance passage or the perceptual passage of the continuously variable valve timing device 9, the action of advancing or perceiving the intake or exhaust valve timing To do.

이러한 연속가변 밸브타이밍장치에 오일을 공급하기 위한 종래의 오일회로는, 도 2와 도 3에서 도시한 바와 같이, 오일통로의 실린더 헤드(1)에 형성되는 부분의 적어도 일부를 캠 캡 볼트홀(47)의 외측에 배치하고, 캠 캡(20)의 실린더 헤드 합면에, 상기 실린더 헤드(1)측 오일통로에 연통하는 2개의 제1오일 홈(50,51)을 캠 캡 볼트홀(47)을 피하고 형성하는 것과 동시에, 상기 캠 캡(20)의 저널부(46)에 상기 각 제1오일 홈(50,51)에 연통하는 제2오일 홈(48,49)을 형성하고, 각각 제2오일 홈(48,49)에 연통하는 오일통로를 캠 축(미도시)에 형성하고, 그 오일 통로를 지날 수 있고 상기 연속가변 밸브타이밍장치에 오일을 공급하도록 구성된다. In a conventional oil circuit for supplying oil to such a continuously variable valve timing device, as shown in FIGS. 2 and 3, at least a part of a portion formed in the cylinder head 1 of the oil passage is formed by a cam cap bolt hole ( The cam cap bolt hole 47 is provided with two first oil grooves 50 and 51 disposed outside the cylinder 47 and communicating with the cylinder head mating surface of the cam cap 20 to communicate with the oil passage of the cylinder head 1 side. The second oil grooves 48 and 49 communicating with each of the first oil grooves 50 and 51 in the journal portion 46 of the cam cap 20, respectively, An oil passage communicating with the oil grooves 48 and 49 is formed in the cam shaft (not shown), and can pass through the oil passage and supply oil to the continuously variable valve timing device.

그러나 종래의 오일회로는 진각 및 지각유로를 형성하는 실린더 헤드(1) 상의 오일통로(44,45)가 모두 일측 볼트홀(18)의 외측에 연결되어 오일의 공급루트를 길게 하여 응답성이 다소 떨어지는 경향이 있으며, 실린더 헤드(1) 상의 오일통로(44,45)와 연결되는 실린더 헤드(1)와 캠 캡(20)의 각 저널부(17,46) 상의 제1,2오일 홈(50,51)(48,49)을 통하여 캠 축으로 오일을 공급하는 구조로 상기 실린더 헤드(1)와 캠 캡(20)의 각각의 저널부(17,46)에 오일 홈(21,22)(50,51,48,49)을 가공해야 하는 단점이 있었다.However, in the conventional oil circuit, the oil passages 44 and 45 on the cylinder head 1 forming the advance and perceptual flow passages are all connected to the outside of the one side bolt hole 18 to lengthen the oil supply route so that the response is somewhat The first and second oil grooves 50 on the journal heads 17 and 46 of the cam cap 20 and the cylinder head 1 connected to the oil passages 44 and 45 on the cylinder head 1 tend to fall. Oil grooves 21 and 22 in the journal portions 17 and 46 of the cylinder head 1 and the cam cap 20 in a structure in which oil is supplied to the cam shaft through the 51 and 48 and 49. 50, 51, 48, 49) had to be processed.

따라서 본 발명은 상기와 같은 문제점을 해소하기 위하여 발명된 것으로서, 본 발명이 해결하고자 하는 과제는 오일제어밸브로부터 연속가변 밸브타이밍장치로 오일을 공급하기 위한 진각 및 지각유로를 형성하되, 상기 진각유로를 오일제어밸브로부터 실린더 헤드 상의 캠 샤프트 저널면 일측으로 바로 연결하여 지각오일의 공급루트를 짧게 하여 응답성을 향상시키고, 캠 샤프트의 저널부에 각각의 오일 홈을 형성하여 실린더 헤드와 캠 캡의 각 저널면에 형성되던 종래의 오일 홈을 삭제함으로써 가공원가를 최소화하는 엔진의 연속가변 밸브타이밍장치용 오일회로를 제공하는 것이다.Therefore, the present invention has been invented to solve the above problems, the problem to be solved by the present invention is to form an advance and perceptual flow path for supplying oil from the oil control valve to the continuously variable valve timing device, Is connected directly from the oil control valve to one side of the camshaft journal surface on the cylinder head to shorten the supply route of the tectonic oil to improve responsiveness, and each oil groove is formed in the journal portion of the camshaft to It is to provide an oil circuit for a continuously variable valve timing device of the engine to minimize the processing cost by eliminating the conventional oil groove formed on each journal surface.

상기한 바와 같은 기술적 과제를 실현하기 위한 본 발명의 엔진의 연속가변 밸브타이밍장치용 오일회로는 오일펌프로부터 토출되는 오일이 오일제어밸브를 거쳐 연속가변 밸브타이밍장치로 공급되도록 실린더 헤드와 캠 캡 및 캠 샤프트 사이에 유로를 형성하는 엔진의 연속가변 밸브타이밍장치용 오일회로에 있어서, The oil circuit for the continuously variable valve timing device of the engine of the present invention for realizing the technical problem as described above is the cylinder head and the cam cap so that the oil discharged from the oil pump is supplied to the continuously variable valve timing device through the oil control valve and In the oil circuit for the continuously variable valve timing device of the engine forming a flow path between the cam shaft,

상기 실린더 헤드의 내부 오일제어밸브로부터 상기 실린더 헤드 상의 캠 샤프트 저널면 일측을 연결하여 형성되는 진각유로; 상기 실린더 헤드의 내부 오일제어밸브로부터 상기 실린더 헤드 상의 캠 캡과의 접촉면 일측을 연결하여 형성되는 지각유로; 상기 실린더 헤드의 내부에서 실린더 블록 상의 오일통로와 연결되어 상기 실린더 헤드 상의 캠 캡과의 접촉면 타측을 연결하여 형성되는 윤활유로; 상기 캠 캡의 실린더 헤드와의 접촉면 상에 그 일측 볼트홀의 외측을 따라 상기 실린더 헤드 상의 지각유로를 그 저널면 일측으로 연결하여 형성되는 지각유로 연결홈; 상기 캠 캡의 실린더 헤드와의 접촉면 상에 그 타측 볼트홀의 외측으로 상기 실린더 헤드 상의 윤활유로를 그 저널면 타측으로 연결하여 형성되는 윤활유로 연결홈; 상기 캠 샤프트의 저널부에 일측 외주면을 따라 상기 캠 캡에 형성되는 윤활유로 연결홈과 연결되는 윤활유로 홈; 상기 캠 샤프트의 저널부에 타측 외주면을 따라 상기 진각유로와 연결되는 진각유로 홈; 상기 윤활유로 홈과 진각유로 홈 사이의 상기 캠 샤프트의 저널부 외주면을 따라 상기 캠 캡에 형성되는 지각유로 연결홈과 연결되는 지각유로 홈으로 이루어지는 것을 특징으로 한다.An advance passage formed by connecting one side of a cam shaft journal surface on the cylinder head from an internal oil control valve of the cylinder head; A crust flow channel formed by connecting one side of a contact surface with a cam cap on the cylinder head from an internal oil control valve of the cylinder head; A lubricating oil passage which is connected to an oil passage on a cylinder block inside the cylinder head and is connected to the other side of a contact surface with a cam cap on the cylinder head; A crust flow path connecting groove formed by connecting a crust flow path on the cylinder head to one side of the journal surface along an outer side of the bolt hole on the contact surface of the cam cap with the cylinder head; A lubricating oil passage connecting groove formed by connecting the lubricating oil passage on the cylinder head to the other side of the journal surface on the contact surface of the cam cap with the cylinder head to the outside of the other bolt hole; A lubricating oil passage groove connected to a lubricating oil passage groove formed in the cam cap along one outer circumferential surface of the journal portion of the cam shaft; An advance channel groove connected to the advance channel along the other outer circumferential surface of the journal portion of the cam shaft; And a crust flow path groove connected to a crust flow path connecting groove formed in the cam cap along the outer peripheral surface of the journal portion of the cam shaft between the lubrication oil path groove and the stiffness flow path groove.

상기 캠 샤프트의 저널부에는 상기 진각유로 홈이 상기 실린더 헤드의 외측방향 일측에 형성되고, 상기 윤활유로 홈이 상기 실린더 헤드의 내측방향 일측에 형성되며, 그 사이에 상기 지각유로 홈이 형성되는 것을 특징으로 한다.In the journal portion of the camshaft the groove is formed on the outer side of the cylinder head in one side, the groove is formed on one side of the cylinder head in the inner side of the cylinder head, the crust flow path groove is formed therebetween. It features.

상술한 바와 같이 본 발명에 따른 엔진의 연속가변 밸브타이밍장치용 오일회로에 의하면, 오일제어밸브로부터 연속가변 밸브타이밍장치로 오일을 공급하기 위한 진각 및 지각유로를 형성하되, 상기 진각유로를 오일제어밸브로부터 실린더 헤드 상의 캠 샤프트 저널면 일측으로 바로 연결하여 지각오일의 공급루트를 짧게 함으로 그 응답성을 향상시키는 효과가 있다.As described above, according to the oil circuit for the continuously variable valve timing device of the engine according to the present invention, an advance and a crust flow path for supplying oil from the oil control valve to the continuously variable valve timing device are formed, but the advance path is oil controlled. By directly connecting from the valve to one side of the camshaft journal surface on the cylinder head, the supply route of the tectonic oil is shortened, thereby improving the responsiveness.

또한, 캠 샤프트의 저널부에 진각 및 지각유로와 연결되는 각각의 오일 홈을 형성함으로써 실린더 헤드와 캠 캡의 각 저널면에 형성되던 종래의 오일 홈을 삭제 할 수 있어 가공원가를 최소화하는 효과가 있다. In addition, by forming the respective oil grooves connected to the advance and perceptual flow paths in the journal portion of the cam shaft, the conventional oil grooves formed in each journal surface of the cylinder head and cam cap can be deleted, thereby minimizing the processing cost. have.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 발명의 실시예에 따른 연속가변 밸브타이밍장치용 오일회로를 도시한 실린더 헤드의 평면도이고, 도 5는 본 발명의 실시예에 따른 연속가변 밸브타이밍장치용 오일회로를 도시한 캠 캡의 저면 사시도이다.4 is a plan view of a cylinder head showing an oil circuit for a continuously variable valve timing device according to an embodiment of the present invention, Figure 5 is a cam cap showing an oil circuit for a continuously variable valve timing device according to an embodiment of the present invention. Bottom perspective view.

본 발명의 실시예에 따른 연속가변 밸브타이밍장치용 오일회로는 연속가변 밸브타이밍장치에 오일을 공급하기 위한 것으로, 본 실시예에 따른 오일회로는 기본적으로 오일펌프(미도시)로부터 토출되는 오일이 오일제어밸브(OCV; 도 6, 도 8참조)를 거쳐 연속가변 밸브타이밍장치(100, 도 9 참조)의 진각실과 지각실로 공급되도록 실린더 헤드(101, 도 4, 도 6, 도 7, 도 8 참조)와 캠 캡(103, 도 5참조) 및 캠 샤프트(105, 도 9 참조) 사이에 유로를 형성한다.The oil circuit for the continuously variable valve timing device according to the embodiment of the present invention is for supplying oil to the continuously variable valve timing device. The oil circuit according to the present embodiment basically has oil discharged from an oil pump (not shown). Cylinder heads 101, 4, 6, 7, 7, and 8 are supplied to the chamber and the perception chamber of the continuously variable valve timing apparatus 100 (see FIG. 9) via an oil control valve (OCV; see FIGS. 6 and 8). A flow path is formed between the cam cap 103 (see FIG. 5) and the cam shaft 105 (see FIG. 9).

즉, 상기 유로는 먼저, 도 4와 도 7에서 도시한 바와 같이, 상기 실린더 헤드(101)의 내부 오일제어밸브(OCV)로부터 상기 실린더 헤드(101) 상의 캠 샤프트 저널면(JF1) 일측을 연결하여 진각유로(L1)를 형성한다. That is, the flow path first connects one side of the cam shaft journal surface JF1 on the cylinder head 101 from the internal oil control valve OVC of the cylinder head 101, as shown in FIGS. 4 and 7. As a result, a true path L1 is formed.

그리고, 도 4와 도 8에서 도시한 바와 같이, 상기 실린더 헤드(101)의 내부 오일제어밸브(OCV)로부터 상기 실린더 헤드(101) 상의 캠 캡(103)과의 접촉면(F1) 일측을 연결하여 지각유로(L2)를 형성한다.4 and 8, one side of the contact surface F1 of the cylinder head 101 is contacted with the cam cap 103 on the cylinder head 101 from the internal oil control valve OVC of the cylinder head 101. A crust flow channel L2 is formed.

여기서, 도 4와 도 6에서 도시한 바와 같이, 상기 실린더 헤드(101)의 내부 에는 실린더 블록(미도시) 상의 오일통로와 연결되어 상기 실린더 헤드(101) 상의 캠 캡(103)과의 접촉면(F1) 타측을 연결하여 윤활유로(L3)도 함께 형성된다. 4 and 6, the cylinder head 101 is connected to an oil passage on a cylinder block (not shown) to contact with the cam cap 103 on the cylinder head 101. F1) By connecting the other side, the lubricating oil path L3 is also formed.

한편, 상기 캠 캡(103)에는, 도 5에서 도시한 바와 같이, 캠 캡(103)의 실린더 헤드(101)와의 접촉면(F2) 상에 그 일측 볼트홀(H)의 외측을 따라 상기 실린더 헤드(101) 상의 지각유로(L2)를 그 저널면(JF2) 일측으로 연결하도록 지각유로 연결홈(G1)을 형성한다. On the other hand, the cam cap 103, as shown in Figure 5, the cylinder head along the outer side of the one side bolt hole (H) on the contact surface (F2) of the cam cap 103 with the cylinder head 101. A crust flow path connecting groove G1 is formed to connect the crust flow path L2 on the 101 to one side of the journal surface JF2.

또한, 상기 캠 캡(103)에는 상기 캠 캡(103)의 실린더 헤드(101)와의 접촉면(F2) 상에 그 타측 볼트홀(H)의 외측으로 상기 실린더 헤드(101) 상의 윤활유로(L3)를 그 저널면(JF2) 타측으로 연결하는 윤활유로 연결홈(G2)도 함께 형성된다. In addition, the cam cap 103 has a lubricating oil path L3 on the cylinder head 101 on the contact surface F2 of the cam cap 103 with the cylinder head 101 on the outer side of the other bolt hole H. The connection groove G2 is also formed together with a lubricating oil for connecting the journal surface JF2 to the other side.

그리고 상기 실린더 헤드(101)와 캠 캡(103)의 각 저널면(JF1,JF2) 사이에 설치되는 상기 캠 샤프트(105)의 저널부(J)에는, 도 9에서 도시한 바와 같이, 그 일측 외주면을 따라 상기 캠 캡(103)에 형성되는 윤활유로 연결홈(G2)과 연결되는 윤활유로 홈(D3)을 형성하고, 상기 캠 샤프트(105)의 저널부(J) 타측 외주면을 따라서는 상기 진각유로(L1)와 연결되는 진각유로 홈(D1)이 형성되며, 상기 윤활유로 홈(D3)과 진각유로 홈(D1) 사이의 상기 캠 샤프트(105)의 저널부(J) 외주면을 따라서는 상기 캠 캡(103)에 형성되는 지각유로 연결홈(G1)과 연결되는 지각유로 홈(D2)이 형성된다. In addition, as illustrated in FIG. 9, the journal portion J of the cam shaft 105 provided between the cylinder head 101 and the journal surfaces JF1 and JF2 of the cam cap 103 has one side thereof. A groove D3 is formed by lubricating oil connected to the connecting groove G2 along the outer circumferential surface of the cam cap 103, and along the other outer circumferential surface of the journal portion J of the cam shaft 105. A true channel flow path groove D1 is formed to be connected to the real channel flow path L1, and along the outer circumferential surface of the journal portion J of the cam shaft 105 between the lubricant channel groove D3 and the real channel flow path groove D1. A crust flow path groove D2 connected to the crust flow path connecting groove G1 is formed in the cam cap 103.

즉, 상기 캠 샤프트(105)의 저널부(J)에는 상기 진각유로 홈(D1)이 상기 실린더 헤드(101)의 외측방향 일측에 형성되고, 상기 윤활유로 홈(D3)이 상기 실린더 헤드(101)의 내측방향 일측에 형성되며, 그 사이에 상기 지각유로 홈(D2)이 형성된다.That is, in the journal portion J of the camshaft 105, the forward passage D1 is formed at one side of the cylinder head 101 in the outer direction, and the lubricant passage D3 is the cylinder head 101. Is formed on one side of the inner direction, and the crust flow path groove D2 is formed therebetween.

따라서 상기한 바와 같은 구성을 갖는 연속가변 밸브타이밍장치용 오일회로에 의하면, 엔진이 구동된 상태에서, 상기 실린더 블록 상의 오일통로와 연결되는 메인유로(ML)로부터 공급되는 오일을 흡기 또는 배기측 오일제어밸브(OCV, 일측 미도시)로 각각 공급하게 되고, 각 오일제어밸브(OCV)는 제어기(C)의 제어신호에 따라 상기 연속가변 밸브타이밍장치(100)의 진각실 혹은 지각실에 오일을 공급하여 캠 샤프트(105)의 회전을 제어하게 된다. Therefore, according to the oil circuit for the continuously variable valve timing device having the configuration as described above, the oil supplied from the main flow path (ML) connected to the oil passage on the cylinder block in the engine running state, the intake or exhaust side oil Each oil control valve (OCV) is supplied to a control valve (OCV, one side not shown), and each oil control valve (OCV) supplies oil to the chamber or the perception chamber of the continuously variable valve timing device 100 according to the control signal of the controller (C). Supply to control the rotation of the camshaft 105.

즉, 상기 해당 오일제어밸브(OCV)에 의해 오일펌프로부터 공급되는 오일이 해당 연속가변 밸브타이밍장치용 진각유로(L1) 또는 지각유로(L2)로 공급되면, 도 10에서 도시한 바와 같이, 상기 진각유로(L1)로 공급되는 오일은 상기 캠 샤프트(105)의 저널부(J)에 형성된 진각유로 홈(D1)에 대응하여 실린더 헤드(101) 상의 캠 샤프트(105) 저널면(JF1)으로 바로 공급되어 상기 연속가변 밸브타이밍장치(100)의 진각실로 공급됨으로 오일 공급루트가 짧아 그 응답성이 빨라지게 된다. That is, when the oil supplied from the oil pump by the corresponding oil control valve (OCV) is supplied to the advance path (L1) or the perceptual flow path (L2) for the continuous variable valve timing device, as shown in FIG. The oil supplied to the advance passage L1 is directed to the journal surface JF1 of the cam shaft 105 on the cylinder head 101 corresponding to the advance passage groove D1 formed in the journal portion J of the cam shaft 105. Immediately supplied and supplied to the chamber chamber of the continuously variable valve timing device 100, the oil supply route is short, the response is faster.

또한, 상기 지각유로(L2)로 공급되는 오일은 상기 캠 캡(103)의 저면에 형성된 지각유로 연결홈(G1)을 따라 상기 캠 샤프트(105)의 저널부(J)에 형성된 지각유로 홈(D2)으로 공급되어 상기 연속가변 밸브타이밍장치(100)의 지각실로 공급된다. In addition, the oil supplied to the crust flow path (L2) is a crust flow path groove formed in the journal portion (J) of the cam shaft 105 along the crust flow path connecting groove (G1) formed on the bottom surface of the cam cap 103 ( D2) is supplied to the perceptual chamber of the continuously variable valve timing device 100.

이에 따라, 상기 연속가변 밸브타이밍장치(100)는 흡기 혹은 배기 밸브 타이밍을 진각 또는 지각시키는 작용을 하는 것이다.Accordingly, the continuous variable valve timing device 100 serves to advance or perceive the intake or exhaust valve timing.

한편, 상기 실린더 블록(미도시) 상의 오일통로로부터 상기 실린더 헤 드(100) 상의 윤활유로(L3)를 통하여 공급되는 오일은 상기 캠 캡(103)의 저면에 형성된 윤활유로 연결홈(G2)을 따라 상기 캠 샤프트(105)의 저널부(J)에 형성된 윤활유로 홈(D3)으로 공급되며, 이에 따라 상기 오일은 중공의 캠 샤프트(105) 내부 유로를 통하여 내측의 다른 캠 캡으로 각각 분할하여 공급되어 윤활의 기능을 하게 된다. On the other hand, the oil supplied from the oil passage on the cylinder block (not shown) through the lubricating oil path L3 on the cylinder head 100 is connected to the lubricating oil passage groove G2 formed on the bottom surface of the cam cap 103. Accordingly, the oil is supplied to the groove D3 by the lubricating oil formed in the journal portion J of the cam shaft 105. Accordingly, the oil is divided into the other cam caps of the inner side through the inner channel of the hollow cam shaft 105, respectively. It is supplied to function as lubrication.

이와 같이, 본 실시예에 따른 엔진의 연속가변 밸브타이밍장치용 오일회로를 적용하게 되면, 캠 샤프트(105)의 저널부(J)에 진각유로(L1), 지각유로(L2) 및 윤활유로(L3)를 연결하는 각각의 진각유로 홈(D1), 지각유로 홈(D2) 및 윤활유로 홈(D3)을 형성함으로써 실린더 헤드(101)와 캠 캡(103)의 각 저널면(JF1,JF2)에 형성되던 종래의 각각의 오일 홈을 삭제할 수 있게 된다.As such, when the oil circuit for the continuously variable valve timing apparatus of the engine according to the present embodiment is applied, the advance passage L1, the perceptual passage L2, and the lubrication passage (J) to the journal portion J of the cam shaft 105 ( Each journal surface JF1, JF2 of the cylinder head 101 and the cam cap 103 by forming each of the true flow path grooves D1, the tectonic flow path grooves D2, and the lubricating oil grooves D3 connecting L3). Each of the conventional oil grooves formed in the can be deleted.

도 1은 일반적인 연속가변 밸브타이밍장치의 개력적인 구성도이다.1 is a schematic configuration diagram of a general variable valve timing device.

도 2는 종래 기술에 따른 연속가변 밸브타이밍장치용 오일회로를 도시한 실린더 헤드의 부분 평면도이다.2 is a partial plan view of a cylinder head showing an oil circuit for a continuously variable valve timing device according to the prior art.

도 3은 종래 기술에 따는 연속가변 밸브타이밍장치용 오일회로를 도시한 캠 캡의 저면도이다.3 is a bottom view of a cam cap showing an oil circuit for a continuously variable valve timing device according to the prior art.

도 4는 본 발명의 실시예에 따른 연속가변 밸브타이밍장치용 오일회로를 도시한 실린더 헤드의 평면도이다.4 is a plan view of a cylinder head showing an oil circuit for a continuously variable valve timing device according to an embodiment of the present invention.

도 5는 본 발명의 실시예에 따른 연속가변 밸브타이밍장치용 오일회로를 도시한 캠 캡의 저면 사시도이다.5 is a bottom perspective view of a cam cap showing an oil circuit for a continuously variable valve timing device according to an embodiment of the present invention.

도 6은 도 4의 A-A 선에 따른 실린더 헤드의 단면도이다.6 is a cross-sectional view of the cylinder head taken along the line A-A of FIG.

도 7은 도 4의 B-B 선에 따른 실린더 헤드의 단면도이다.7 is a cross-sectional view of the cylinder head taken along the line B-B in FIG.

도 8은 도 4의 C-C 선에 따른 실린더 헤드의 단면도이다.8 is a cross-sectional view of the cylinder head taken along the line C-C in FIG.

도 9는 본 발명의 실시예에 따른 오일회로가 적용된 실린더 헤드에 연속가변 밸브타이밍장치가 적용된 상태의 부분 평면도이다. 9 is a partial plan view of a state in which a continuously variable valve timing device is applied to a cylinder head to which an oil circuit is applied according to an embodiment of the present invention.

도 10은 본 발명의 실시예에 따른 연속가변 밸브타이밍장치용 오일회로의 사용 상태를 도시하기 위한 캠 캡 부분의 투영도이다. 10 is a projection view of a cam cap portion for showing a state of use of the oil circuit for a continuously variable valve timing device according to an embodiment of the present invention.

Claims (8)

오일펌프로부터 토출되는 오일이 오일제어밸브를 거쳐 연속가변 밸브타이밍장치로 공급되도록 실린더 헤드와 캠 캡 및 캠 샤프트 사이에 진각 및 지각유로로 형성되는 엔진의 연속가변 밸브타이밍장치용 오일회로에 있어서, In the oil circuit for the continuously variable valve timing device of the engine is formed between the cylinder head, the cam cap and the cam shaft with an advance and a crust flow so that the oil discharged from the oil pump is supplied to the continuously variable valve timing device via the oil control valve, 상기 진각유로는 상기 실린더 헤드의 내부 오일제어밸브로부터 상기 실린더 헤드 상의 캠 샤프트 저널면 일측을 연결하여 형성되고, 상기 지각유로는 상기 실린더 헤드의 내부 오일제어밸브로부터 상기 실린더 헤드 상의 캠 캡의 접촉면 일측을 연결하여 형성되며, 상기 실린더 헤드에는 그 내부에 실린더 블록 상의 오일통로와 연결되어 상기 캠 캡과의 접촉면 타측을 연결하는 윤활유로가 더 형성되는 것을 특징으로 하는 엔진의 연속가변 밸브타이밍장치용 오일회로.The progressive passage is formed by connecting one side of the cam shaft journal surface on the cylinder from the internal oil control valve of the cylinder head, and the perceptual flow passage is one side of the contact surface of the cam cap on the cylinder head from the internal oil control valve of the cylinder head. And a lubricating oil passage which is connected to the oil passage on the cylinder block and connects the other side of the contact surface with the cam cap to the cylinder head, wherein the oil for the continuously variable valve timing apparatus of the engine is further formed. Circuit. 제1항에서, In claim 1, 상기 캠 캡은 The cam cap is 상기 실린더 헤드와의 접촉면 상에 그 일측 볼트홀의 외측을 따라 상기 실린더 헤드 상의 지각유로를 그 저널면 일측으로 연결하는 지각유로 연결홈을 형성하는 것을 특징으로 하는 엔진의 연속가변 밸브타이밍장치용 오일회로.An oil circuit for a continuously variable valve timing apparatus of an engine, characterized in that a crust flow passage connecting groove is formed on a contact surface with the cylinder head along an outer side of one bolt hole to connect a crust flow path on the cylinder head to one side of the journal surface. . 제1항에서, In claim 1, 상기 캠 샤프트는The camshaft is 그 저널부에 축방향으로 외주면을 따라 상기 진각유로와 연결되는 진각유로 홈과, 상기 캠 캡에 형성되는 지각유로 연결홈과 연결되는 지각유로 홈이 각각 형성되는 것을 특징으로 하는 엔진의 연속가변 밸브타이밍장치용 오일회로.A continuous variable valve of the engine, characterized in that the journal portion is formed in the journal along the outer circumferential surface along the outer circumferential passage and the tectonic flow path groove connected to the crust flow path connecting groove formed in the cam cap, respectively. Oil circuit for timing devices. 삭제delete 제1항에서, In claim 1, 상기 캠 캡은 The cam cap is 상기 실린더 헤드와의 접촉면 상에 그 타측 볼트홀의 외측으로 상기 윤활유로를 그 저널면 타측으로 연결하여 캠 샤프트의 저널부로 오일을 공급하는 윤활유로 연결홈을 형성하는 것을 특징으로 하는 엔진의 연속가변 밸브타이밍장치용 오일회로.The variable valve of the engine, characterized in that for connecting the lubricating oil passage to the other side of the journal surface to the outside of the other bolt hole on the contact surface with the cylinder head to form a connecting groove with lubricating oil for supplying oil to the journal portion of the cam shaft. Oil circuit for timing devices. 제5항에서, The method of claim 5, 상기 캠 샤프트는 The camshaft is 그 저널부에 상기 윤활유로 연결홈과 연결되어 다른 캠 캡에 윤활오일을 공급하도록 그 일측 외주면을 따라 윤활오일 홈을 형성하는 것을 특징으로 하는 엔진 의 연속가변 밸브타이밍장치용 오일회로.An oil circuit for a continuously variable valve timing apparatus of an engine, characterized in that the lubricating oil groove is formed along an outer circumferential surface of the journal portion so as to be connected to the connecting groove with the lubricating oil to supply lubricating oil to another cam cap. 오일펌프로부터 토출되는 오일이 오일제어밸브를 거쳐 연속가변 밸브타이밍장치로 공급되도록 실린더 헤드와 캠 캡 및 캠 샤프트 사이에 유로를 형성하는 엔진의 연속가변 밸브타이밍장치용 오일회로에 있어서, In the oil circuit for the continuously variable valve timing device of the engine to form a flow path between the cylinder head, the cam cap and the cam shaft so that the oil discharged from the oil pump is supplied to the continuously variable valve timing device via the oil control valve, 상기 실린더 헤드의 내부 오일제어밸브로부터 상기 실린더 헤드 상의 캠 샤프트 저널면 일측을 연결하여 형성되는 진각유로; An advance passage formed by connecting one side of a cam shaft journal surface on the cylinder head from an internal oil control valve of the cylinder head; 상기 실린더 헤드의 내부 오일제어밸브로부터 상기 실린더 헤드 상의 캠 캡과의 접촉면 일측을 연결하여 형성되는 지각유로;A crust flow channel formed by connecting one side of a contact surface with a cam cap on the cylinder head from an internal oil control valve of the cylinder head; 상기 실린더 헤드의 내부에서 실린더 블록 상의 오일통로와 연결되어 상기 실린더 헤드 상의 캠 캡과의 접촉면 타측을 연결하여 형성되는 윤활유로;A lubricating oil passage which is connected to an oil passage on a cylinder block inside the cylinder head and is connected to the other side of a contact surface with a cam cap on the cylinder head; 상기 캠 캡의 실린더 헤드와의 접촉면 상에 그 일측 볼트홀의 외측을 따라 상기 실린더 헤드 상의 지각유로를 그 저널면 일측으로 연결하여 형성되는 지각유로 연결홈;A crust flow path connecting groove formed by connecting a crust flow path on the cylinder head to one side of the journal surface along an outer side of the bolt hole on the contact surface of the cam cap with the cylinder head; 상기 캠 캡의 실린더 헤드와의 접촉면 상에 그 타측 볼트홀의 외측으로 상기 실린더 헤드 상의 윤활유로를 그 저널면 타측으로 연결하여 형성되는 윤활유로 연결홈; A lubricating oil passage connecting groove formed by connecting the lubricating oil passage on the cylinder head to the other side of the journal surface on the contact surface of the cam cap with the cylinder head to the outside of the other bolt hole; 상기 캠 샤프트의 저널부에 일측 외주면을 따라 상기 캠 캡에 형성되는 윤활유로 연결홈과 연결되는 윤활유로 홈;A lubricating oil passage groove connected to a lubricating oil passage groove formed in the cam cap along one outer circumferential surface of the journal portion of the cam shaft; 상기 캠 샤프트의 저널부에 타측 외주면을 따라 상기 진각유로와 연결되는 진각유로 홈;An advance channel groove connected to the advance channel along the other outer circumferential surface of the journal portion of the cam shaft; 상기 윤활유로 홈과 진각유로 홈 사이의 상기 캠 샤프트의 저널부 외주면을 따라 상기 캠 캡에 형성되는 지각유로 연결홈과 연결되는 지각유로 홈;A crust flow path groove connected to a crust flow path connection groove formed in the cam cap along an outer circumferential surface of the cam portion of the cam shaft between the lubrication oil path groove and the incidence flow path groove; 으로 이루어지는 것을 특징으로 하는 엔진의 연속가변 밸브타이밍장치용 오일회로.Oil circuit for a continuously variable valve timing device of the engine, characterized in that consisting of. 제7항에서, 8. The method of claim 7, 상기 캠 샤프트의 저널부에는 The journal portion of the cam shaft 상기 진각유로 홈이 상기 실린더 헤드의 외측방향 일측에 형성되고, 상기 윤활유로 홈이 상기 실린더 헤드의 내측방향 일측에 형성되며, 그 사이에 상기 지각유로 홈이 형성되는 것을 특징으로 하는 엔진의 연속가변 밸브타이밍장치용 오일회로. The true flow path groove is formed on one side of the outer side of the cylinder head, the lubricating oil groove groove is formed on one side of the inner side of the cylinder head, the continuous flow path of the engine characterized in that the crust flow path groove is formed therebetween. Oil circuit for valve timing devices.
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US9169745B2 (en) 2013-09-06 2015-10-27 Hyundai Motor Company Engine having continuously variable valve timing mechanism

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KR101250676B1 (en) * 2011-12-19 2013-04-03 쌍용자동차 주식회사 Oil supply structure for cam shaft and continuous variable valve timing apparatus for automobile

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KR101470208B1 (en) * 2013-09-04 2014-12-05 현대자동차주식회사 Oil supply device
US9169745B2 (en) 2013-09-06 2015-10-27 Hyundai Motor Company Engine having continuously variable valve timing mechanism

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