公开(公告)号：KR100471202B1

公开(公告)日：2005-03-07

申请号：KR1020010059601

申请日：2001-09-26

Applicant: 현대자동차주식회사

Inventor： 유철호

IPC: F02B23/10

CPC classification number: F02B31/08 ,  F02B23/104 ,  F02B2023/106 ,  F02B2075/125 ,  F02F3/26 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/146

Abstract: 연소실로 유입되는 흡입공기의 텀블(TUMBLE) 유동을 강화하여 연비 개선을 물론 출력을 향상시키고, 냉시동시 배출가스를 저감시킬 수 있도록;
실린더 헤드 하면과 실린더내의 피스톤 상면에 의해 형성되는 연소실과; 상기 연소실의 실린더 헤드 양측으로 형성되는 흡,배기포트에 각각 배치되는 흡,배기 밸브와; 상기 연소실의 실린더 헤드 하면에 중앙부분에 배치되는 점화플러그와; 상기 연소실내에 직접 연료를 분사하는 연료 분사수단인 연료 인젝터를 구비하는 가솔린 직접 분사식 엔진에 있어서,
상기 피스톤의 흡기밸브측 경사상면과 배기밸브측 경사상면에 의해 형성되는 펜트 루프형상의 돌출부분에 평면에서 보아 사다리꼴 형태로서 배기측은 넓고 흡기측은 좁은 보울을 형성하고, 상기 흡기포트는 하류단 부분이 상,하 분리되어 2개의 유로를 갖도록 스플릿 웰을 배치하여 상측 유로는 텀블 유로가 되도록 하고, 하측 유로의 입구부에는 선택적으로 엔진 제어유닛에 의해 제어되면서 개폐되는 밸브가 배치되는 가솔린 직접 분사식 엔진을 제공한다.

公开(公告)号：KR1020040100449A

公开(公告)日：2004-12-02

申请号：KR1020030032821

申请日：2003-05-23

Applicant: 현대자동차주식회사

Inventor： 유철호

IPC: F02B31/00

CPC classification number: Y02T10/146

Abstract: PURPOSE: A tumble generator of an engine is provided to supply a strong and stable tumble to the combustion chamber of the engine by stabilizing the operation of a flap and securing the tightness of an intake passage opened and closed by the flap. CONSTITUTION: A tumble generator of an engine comprises a sheet installed in a cylinder head to divide an intake passage into an upper part and a lower part, a flap(7) rotatably installed in a spacer block to make the free end closely attached to the lower face of the sheet or the lower face of the intake passage, and a flap operation module for rotating the flap.

Abstract translation: 目的：提供一种发动机的翻转发电机，通过稳定翼片的操作并确保由挡板打开和关闭的进气通道的紧密度，向发动机的燃烧室提供强劲稳定的翻转。 构成：发动机的翻转发电机包括安装在气缸盖中以将进气通道分成上部和下部的片材，可旋转地安装在间隔块中的挡板（7），以使自由端紧密地附接到 进纸通道的下表面或下表面，以及用于旋转挡板的挡板操作模块。

公开(公告)号：KR1020040041308A

公开(公告)日：2004-05-17

申请号：KR1020020069512

申请日：2002-11-11

Applicant: 현대자동차주식회사

Inventor： 유철호

IPC: F02B23/10

CPC classification number: Y02T10/125

Abstract: PURPOSE: A structure for a combustion chamber of a gasoline direct injection engine is provided to increase combustion efficiency at the whole load area of the engine and decrease the amount of the exhaust gas by mounting a flow guide bowl for strengthening the tumble flow of intake air and a wall guide bowl for guiding the injection of fuel sprayed from an injector to the upside of a piston and forming a split wall and a VCM(Variable Control Module) valve for strengthening the tumble of the intake air to an intake port. CONSTITUTION: In a gasoline direct injection engine(20) comprising intake and exhaust valves mounted to the upper part of a cylinder(23); intake and exhaust ports(24,25) being a passage for intake and exhaust gas; an injector for directly injecting fuel to the upper part of a piston formed at the side of the intake port; and a spark plug disposed to the upper part of the cylinder to ignite sparks, a structure for a combustion chamber of the engine is composed of a split wall(30) for splitting the middle part of the intake port into upper and lower passages(24a,24b) to differently regulate the strength of tumble to the operation range of the engine; a VCM valve(31) for opening and closing the lower passage of the intake port divided by the split wall to the operation range of the engine; and the piston for forming a wall guide bowl to the part colliding with the fuel sprayed from the injector and a flow guide bowl to the part flowing in the intake air at the intake port.

Abstract translation: 目的：提供一种用于汽油直喷发动机的燃烧室的结构，以提高发动机整个负荷区域的燃烧效率，并通过安装用于加强进气转鼓流动的导流碗来减少废气量 以及壁引导碗，用于引导从喷射器喷射的燃料喷射到活塞的上侧并形成分裂壁，以及VCM（可变控制模块）阀，用于加强进气口的翻转。 构成：在汽油直喷发动机（20）中，包括安装在气缸（23）的上部的进气和排气阀; 进气和排气口（24,25）是进气和排气通道; 用于将燃料直接喷射到形成在进气口侧的活塞的上部的喷射器; 以及火花塞，其设置在所述气缸的上部以点燃火花，所述发动机的燃烧室的结构由用于将所述进气口的中间部分分成上下通道（24a）的分隔壁（30） ，24b）以不同的方式调节发动机的操作范围的翻滚强度; VCM阀（31），用于打开和关闭由分隔壁分隔的进气口的下通道到发动机的操作范围; 以及用于将壁引导碗形成到与从喷射器喷射的燃料碰撞的部分的活塞，以及用于在进气口处在进气中流动的部分的导流碗。

公开(公告)号：KR100369142B1

公开(公告)日：2003-01-24

申请号：KR1020000031266

申请日：2000-06-08

Applicant: 현대자동차주식회사 ,  기아자동차주식회사

Inventor： 유철호

IPC: F02B31/00

Abstract: A novel and improved method and apparatus for generating a reduced peak amplitude high data rate channel comprised of a set of lower rate channels is described. The set of lower rate channels (90, 92) are phase rotated before being summed and transmitted. The amount of phase rotation is dependent on the number of channels used to form the higher rate channel (102). In an embodiment wheretwo lower rate channels (90, 92) are used, the in-phase and quadrature-phase components of the two channels are complex multiplied (94, 96) before upconversion with an in-phase and quadrature-phase sinusoids. For a high rate channel comprised of more than two lower rate channels, the in-phase and quadrature-phase component of each channel is upconverted with a set of sinusoids that are phase offset from one another.

Abstract translation: 描述了一种用于产生由一组较低速率信道组成的减小的峰值幅度高数据速率信道的新颖和改进的方法和设备。 一组较低速率信道（90,92）在被求和和发送之前被相位旋转。 相位旋转的量取决于用于形成较高速率信道（102）的信道的数量。 在使用两个较低速率信道（90,92）的实施例中，两个信道的同相和正交相位分量在与同相和正交相位正弦波上变频之前被复数乘（94,96）。 对于由多于两个较低速率信道组成的高速信道，每个信道的同相和正交相位分量通过一组彼此相位偏移的正弦波上变频。

公开(公告)号：KR1020090063864A

公开(公告)日：2009-06-18

申请号：KR1020070131382

申请日：2007-12-14

Applicant: 현대자동차주식회사

Inventor： 박현일 ,  유철호 ,  이춘식 ,  박종범 ,  임혁

IPC: H01T13/20

CPC classification number: H01T13/08 ,  F02P3/01 ,  H01T13/16 ,  H01T13/34

Abstract: A taper type spark plug with a small diameter is provided to improve performance by increasing a diameter of a valve by reducing a cross-section of the spark plug. A head unit(11) of a lower part is formed as the tapered incline. A thread(15) is formed in the upper part of the head unit. A plug washer(13) is installed between the head unit and the thread. A clamping nut(17) is positioned in the upper part of the thread. The thread prevents leak. The thread has the length of 8 to 10 mm to secure a sufficient coupling force.

Abstract translation: 提供具有小直径的锥形火花塞，以通过减小火花塞的横截面来增加阀的直径来提高性能。 下部的头单元（11）形成为锥形倾斜。 螺纹（15）形成在头部单元的上部。 插头垫圈（13）安装在头单元和线之间。 夹紧螺母（17）位于螺纹的上部。 螺纹防止泄漏。 螺纹的长度为8至10毫米，以确保足够的联接力。

公开(公告)号：KR1020070060900A

公开(公告)日：2007-06-13

申请号：KR1020050121081

申请日：2005-12-09

Applicant: 현대자동차주식회사

Inventor： 유철호

IPC: F02D41/06 ,  F02D43/00 ,  F01N3/20

CPC classification number: F02D41/068 ,  F01N3/2006 ,  F02B23/104 ,  F02D41/3818 ,  Y02T10/40

Abstract: A method for reducing heating time for a catalyst of a gasoline direct injection engine is provided to reduce back pressure by reducing the volume of the catalyst and the size of a cell. A method for reducing heating time for a catalyst of a gasoline direct injection engine includes a step of producing a lean fuel-air mixture by injecting 60~80% of the total fuel to the air sucked in a cylinder; and a step of producing a fuel-air mixture by injecting the remainder 20~40% to the vicinity of a recess hollow portion of a top surface of the piston.

Abstract translation: 提供一种减少汽油直喷式发动机的催化剂的加热时间的方法，通过减少催化剂的体积和电池的尺寸来减少背压。 一种用于减少汽油直喷式发动机的催化剂的加热时间的方法包括通过将60〜80％的总燃料喷射到吸入气缸中的空气来产生贫燃料 - 空气混合物的步骤; 以及通过将剩余部分20〜40％注入活塞的上表面的凹部中空部附近来制造燃料 - 空气混合物的步骤。

公开(公告)号：KR100482050B1

公开(公告)日：2005-04-13

申请号：KR1020010069103

申请日：2001-11-07

Applicant: 현대자동차주식회사

Inventor： 유철호

IPC: F01N3/22

CPC classification number: Y02A50/2322

Abstract: 실린더 내에 연료를 직접 분사하는 엔진에서 약희박 성층 운전을 활용하여 2단계 연소(Two Stage Combustion)기간을 단축하고 이로인한 촉매의 빠른 워밍업으로 삼원 촉매에서 배기가스의 정화율을 증대시킬 목적으로;
실린더 내에 연료를 직접 분사하는 엔진에 전원이 인가되어 배기가스 저감 모드 수행이 이루어지면, 2단계 연소 제어 신호를 소정의 제1 설정시간동안 출력하는 단계와; 상기 단계에서 제1 설정시간이 경과되면 소정의 값을 갖는 희박 혼합기 성층 연소 제어신호를 소정의 제2 설정시간 동안 출력하는 단계와; 상기 단계에서 제2 설정시간이 경과되면, 통산의 연료분사 제어신호를 소정의 제3 설정시간동안 출력하고 종료하는 단계로 이루어져 있어서, 냉시동시 일산화탄소(CO)를 이용한 촉매의 빠른 워밍업으로 산원촉매에서 일산화탄소(CO) 및 탄화수소(HC)의 정화율을 증대시켜 배기가스 발생을 저감할 수 있다. 또한 린 산화질소(Lean NOx) 촉매의 온도도 빨리 상승 시켜서 대폭적으로 산화질소(NOx)의 발생을 저감시킬 수 있으며, 잉여의 일산화탄소(CO)에 의한 산화질소(NOx)의 발생을 저감시킬 수 있다.그리고, 일반적으로 촉매의 조기 가열을 위하여 전열 촉매을 사용하지 않음에 따라 차량의 경량화 및 원가절감의 효과를 누릴 수 있다.

公开(公告)号：KR1020050032332A

公开(公告)日：2005-04-07

申请号：KR1020030068372

申请日：2003-10-01

Applicant: 현대자동차주식회사

Inventor： 유철호

IPC: F02M61/18

CPC classification number: F02M67/10 ,  F02B17/005 ,  F02B23/101 ,  F02B23/104 ,  F02M63/0225 ,  F02M67/02 ,  F02M69/08 ,  Y02T10/125

Abstract: A gasoline direct injection engine system is provided to enlarge a lean burn range by restricting injection fuel diffusion with tumble flow though a bowl piston and an upright intake port, and to increase output of the engine by cooling gas in a combustion chamber with evaporation heat of fuel owing to evenly supplying fuel and air to the combustion chamber. A gasoline direct injection engine system comprises an air supply unit supplying compressed air to an air rail(25) by regulating intake air and intake pressure, a fuel supply unit supplying fuel from a fuel tank(10) to a fuel rail(18) by compressing fuel and regulating pressure, and an injector connected to the air rail and the fuel rail to inject air mixed with fuel into each cylinder by mixing air with fuel. The air supply unit includes a throttle valve(21) regulating intake air to an engine, an air compressor compressing air through the throttle valve, and an air pressure limit valve regulating pressure of compressed air. The fuel supply unit comprises high and low pressure fuel pumps(11,14) compressing and supplying fuel, and first and second fuel pressure limit valves(12,15) limiting pressure of fuel compressed by the low and high pressure fuel pumps.

Abstract translation: 提供汽油直喷发动机系统以通过限制通过碗活塞和直立进气口的滚筒流动来喷射燃料扩散来扩大稀燃范围，并且通过在燃烧室内的气体通过冷却气体来增加发动机的输出，其蒸发热量 燃料由于燃料和空气均匀地供应到燃烧室。 一种汽油直喷发动机系统，包括通过调节进气和进气压力将压缩空气供应到空气导轨（25）的空气供应单元，燃料供应单元通过以下方式将燃料从燃料箱（10）供应到燃料轨道（18） 压缩燃料和调节压力，以及连接到空气轨道和燃料轨道的喷射器，通过将空气与燃料混合来将与燃料混合的空气喷射到每个气缸中。 空气供给单元包括调节对发动机的进气的节流阀（21），压缩通过节流阀的空气的空气压缩机和调节压缩空气压力的气压限制阀。 燃料供应单元包括压缩和供应燃料的高低压燃料泵（11,14）以及限制由低压和高压燃料泵压缩的燃料压力的第一和第二燃料压力限制阀（12,15）。

公开(公告)号：KR1020050024723A

公开(公告)日：2005-03-11

申请号：KR1020030060813

申请日：2003-09-01

Applicant: 현대자동차주식회사

Inventor： 유철호

IPC: F02D41/40

CPC classification number: F02B75/021 ,  F02B2075/125 ,  F02D41/3818

Abstract: PURPOSE: A 6-stroke gasoline engine is provided to improve a fuel consumption ratio and to remarkably reduce the quantity of noxious exhaust gas by simultaneously burning mixed gas through natural ignition. CONSTITUTION: A 6-stroke gasoline engine comprises a suction/exhaust sprocket(3) in which a gear ratio with a crankshaft sprocket(1) is 1 to 3; a suction cam(5) opening a suction valve(7) till before a first compression stroke from before a top dead center in the process of an exhaust stroke; an exhaust cam(11) opening an exhaust valve(9) till after the top dead center in the process of a suction stroke process from before a bottom dead center in the process of a second explosion stroke; an ignition plug(15); an injector(17) installed to directly inject fuel to a combustion chamber; a high-pressure pump(19) and a high-pressure regulator(21) supplying fuel to the injector by high pressure; a piston(23) in which a bowl for reinforcing a suction flow is formed; and a controller(25). The controller controls the injector and the ignition plug, to start a first explosion stroke by executing ignition by the ignition plug in a state of forming stratified ultralean mixed gas by injecting fuel to the inside of the combustion chamber by the injector in the first compression stroke after a suction stroke, and to uniformly charge, compress, and ignite fuel injected by re-injecting fuel to the combustion gas of high temperature produced in the first explosion stroke by the injector over the last stage of the first explosion stroke and the initial stage of the second compression stroke.

Abstract translation: 目的：提供六冲程汽油发动机，以通过自然点燃同时燃烧混合气体来提高燃油消耗率，显着减少有害排气量。 构成：6冲程汽油发动机包括吸气/排气链轮（3），其中曲轴链轮（1）的齿轮比为1至3; 吸入凸轮（5），其在排气冲程的过程中从上止点开始之前直到第一压缩冲程之前打开吸入阀（7）; 排气凸轮（11），其在第二爆发冲程的过程中从吸气冲程过程开始到下死点以前的上止点之后的排气阀（9）; 火花塞（15）; 安装成将燃料直接喷射到燃烧室的喷射器（17） 高压泵（19）和高压调节器（21），其通过高压向喷射器供应燃料; 活塞（23），其中形成有用于加强吸入流的碗; 和控制器（25）。 控制器控制喷射器和火花塞，通过在形成分层的超低浓度混合气体的状态下通过火花塞进行点火来启动第一爆炸冲程，通过在第一压缩冲程中由喷射器将燃料喷射到燃烧室的内部 在吸入行程之后，并且通过在第一爆炸冲程的最后阶段和初始阶段通过喷射器在第一爆炸冲程中产生的高温燃烧气体再次喷射燃料而均匀地充入，压缩和点燃燃料 的第二压缩冲程。

公开(公告)号：KR100405689B1

公开(公告)日：2003-11-14

申请号：KR1020010012851

申请日：2001-03-13

Applicant: 현대자동차주식회사 ,  기아자동차주식회사

Inventor： 유철호

IPC: F01N3/20

Abstract: PURPOSE: A device and a method for reducing exhaust gas by using an NOx sensor are provided to improve air-fuel ratio by simple circuit. CONSTITUTION: An exhaust manifold close coupled catalytic converter is connected to an engine, and is welded to an exhaust manifold. An NOx occlusion type catalytic converter temporarily holds NOx in lean-burn driving, and restores NOx in theoretical air-fuel ratio driving. An NOx sensor is installed at the rear end of the NOx occlusion type catalytic converter, senses the concentration of NOx, and determines the regeneration and desulfurization timing of the NOx occlusion type catalytic converter.

Abstract translation: 目的：提供一种通过使用NOx传感器来减少废气的装置和方法，以通过简单的电路提高空燃比。 构成：排气歧管紧耦合催化转化器连接到发动机，并焊接到排气歧管。 NOx吸留型催化转换器暂时将NOx保持在稀燃行驶中，并且在理论空燃比驱动中恢复NOx。 在NOx吸留型催化转换器的后端安装NOx传感器，检测NOx的浓度，并确定NOx吸留型催化转换器的再生和脱硫时机。