公开(公告)号：KR1020040041798A

公开(公告)日：2004-05-20

申请号：KR1020020069675

申请日：2002-11-11

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02M65/00

Abstract: PURPOSE: A lift adjusting device of a needle valve in a hydraulic pressure and flow measuring apparatus of an injector is provided to measure hydraulic pressure and flow rate accurately and finely by adjusting lift precisely with an adjusting screw and checking lift through a dial gauge. CONSTITUTION: A lift adjusting device of a needle valve(14) is composed of an adaptor block combining an upper adaptor(11), a middle adaptor(12) and a lower adaptor(13), and supplying and discharging test fluid; a nozzle body installed in the adaptor block and composed of a side pipe(15a) connected to the upper adaptor, a space part containing the needle valve, and plural lower discharge holes(15b) injecting test fluid; the needle valve lifted and adjusted in the space part of the nozzle body according to hydraulic pressure of test fluid; an adjusting screw(16) thread-connected to the upper adaptor, moved up and down, and contacted to the upper part of the needle valve to restrict the lift range of the needle valve; and a dial gauge(17) contacted to the upper part of the adjusting screw to indicate the adjustment of the adjusting screw on the scale.

Abstract translation: 目的：提供一种喷射器液压和流量测量装置中的针阀的提升调节装置，通过用调节螺丝精确调节升降并通过千分表检查升力来精确和精细地测量液压压力和流速。 构成：针阀（14）的提升调节装置由组合上适配器（11），中间适配器（12）和下适配器（13）的适配器块组成，并且供应和排出测试流体; 喷嘴体，安装在适配器块中，由连接到上适配器的侧管（15a），容纳针阀的空间部分和注入测试流体的多个下排出孔（15b）组成。 针阀根据试验液的液压升高并调节喷嘴体的空间部分; 与上部适配器螺纹连接的调节螺钉（16）上下移动，并与针阀的上部接触，限制针阀的升程范围; 以及与调节螺钉的上部接触的千分表（17），以指示调节螺钉在秤上的调节。

公开(公告)号：KR1020040016237A

公开(公告)日：2004-02-21

申请号：KR1020020048506

申请日：2002-08-16

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02M65/00

Abstract: PURPOSE: A nozzle shape measuring apparatus is provided to achieve improved engine performance by accurately measuring the angle of forming the injection hole. CONSTITUTION: A nozzle shape measuring apparatus(100) comprises a base frame(10); a jig member(20) mounted on the base frame, wherein the jig member fixes a nozzle(21) of a fuel injector at the state where a needle is removed; a fuel supply unit(30) for supplying a fuel into the nozzle and permitting the fuel to be injected from an injection hole(22) formed at the front end of the nozzle; and a fuel sensing member(40) arranged in the vicinity of the front end of the nozzle, wherein the fuel sensing member senses the position where the fuel injected from the injection hole collides, so as to measure the processing angle of the injection hole.

Abstract translation: 目的：提供一种喷嘴形状测量装置，以通过精确测量形成喷射孔的角度来实现改进的发动机性能。 构成：喷嘴形状测量装置（100）包括基架（10）; 安装在基架上的夹具构件（20），其中夹具构件在去除针的状态下固定燃料喷射器的喷嘴（21）; 燃料供给单元（30），其用于将燃料供给到所述喷嘴中，并允许从形成在所述喷嘴前端的喷射孔（22）喷射所述燃料; 以及布置在喷嘴前端附近的燃料检测构件（40），其中燃料检测构件感测从喷射孔喷射的燃料碰撞的位置，以便测量喷射孔的处理角度。

公开(公告)号：KR1020020058839A

公开(公告)日：2002-07-12

申请号：KR1020000086970

申请日：2000-12-30

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02M59/44

Abstract: PURPOSE: A device for identifying the fuel injection timing of a diesel engine is provided to improve performance and to reduce exhaust gas by precisely identifying the fuel injection timing. CONSTITUTION: A device for identifying the fuel injection timing of a diesel engine includes a fuel shut-off unit(17) for shutting off fuel discharged into an injection pipe(13) when a plunger of a fuel injection pump rises and closes an inlet of a fuel intake barrel. The fuel shut-off unit(17) is installed in the injection pipe(13), and includes a valve seat(19), a valve(21), and an elastic unit(23) for supporting the valve(21).

Abstract translation: 目的：提供用于识别柴油发动机的燃料喷射正时的装置，以通过精确地识别燃料喷射正时来提高性能并减少废气。 构成：用于识别柴油发动机的燃料喷射正时的装置包括燃料切断装置（17），用于当燃料喷射泵的柱塞上升并关闭时，关闭排出到喷射管（13）中的燃料 燃油进口筒 燃料切断装置（17）安装在喷射管（13）中，包括阀座（19），阀（21）和用于支撑阀（21）的弹性单元（23）。

公开(公告)号：KR101393566B1

公开(公告)日：2014-05-09

申请号：KR1020120136459

申请日：2012-11-28

Applicant: 현대자동차주식회사

Inventor： 김민수 ,  유준 ,  변기욱 ,  한경찬

IPC: F02D35/00 ,  F02D41/04 ,  F02D45/00

CPC classification number: F02D41/009 ,  F02D35/023 ,  F02D41/04 ,  F02D45/00 ,  Y02T10/40

Abstract: A method for calibrating the top dead center of an engine according to an embodiment of the present invention comprises: a step of measuring pressure in a cylinder; a step of determining whether or not the operational condition of the engine becomes an overrun condition; a step of calculating an actual top dead center based on the measured pressure in the cylinder when the operational condition of the engine is determined to become the overrun condition; a step of calculating a difference between the actual top dead center and a previous top dead center; and calibrating the previous top dead center into the actual top dead center when the difference is determined to be larger than a predetermined value. Therefore, the actual pressure in the cylinder is detected, and the top dead center can be easily detected by the peak point of the pressure. Also, the pressure in the cylinder is detected at a predetermined timing, the peak value of the pressure is easily calculated by averaging crank angle values corresponding to the pressure, and the actual top dead center can be easily detected by the peak value. In addition, the previous top dead center can be calibrated into the actual top dead center when the difference between the actual top dead center and the previous top dead center exceeds the predetermined value. Furthermore, the top dead center is calculated to be advanced in consideration of the RPM of the engine and the delay time of a sensor, thereby previously acquiring the top dead point more precisely.

Abstract translation: 根据本发明的实施例的用于校准发动机的上止点的方法包括：测量气缸中的压力的​​步骤; 确定发动机的运行状态是否成为超限状态的步骤; 当发动机的操作状态被确定为超限状态时，基于所测量的气缸中的压力来计算实际上止点的步骤; 计算实际上止点和先前上死点之间的差的步骤; 并且当差被确定为大于预定值时，将先前的上止点校准为实际上死点。 因此，检测气缸中的实际压力，并且可以通过压力的高峰点容易地检测上止点。 此外，在预定时刻检测气缸中的压力，通过对与压力相对应的曲柄角值平均容易地计算压力的峰值，并且可以容易地通过峰值检测实际上止点。 此外，当实际上死点和上一个上止点之间的差超过预定值时，先前的上死点可以校准到实际上死点。 此外，考虑到发动机的RPM和传感器的延迟时间，上死点被计算为提前，从而更准确地获取上止点。

公开(公告)号：KR101234631B1

公开(公告)日：2013-02-19

申请号：KR1020080120107

申请日：2008-11-28

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02B75/04 ,  F02B75/00

CPC classification number: F02B75/047

Abstract: 본 발명의 예시적인 실시예에 따른 자동차 엔진용 가변 압축비 장치는, 혼합기의 연소력을 피스톤으로부터 전달받아 상하부 실린더 블록 사이에 장착된 크랭크 샤프트를 회전시키는 엔진에 구성되며, 상기 엔진의 운전 상태에 따라 상기 크랭크 샤프트의 장착 높이를 변화시킴으로써 상기 혼합기의 압축비를 변경하기 위한 것으로서, ⅰ)하부면에 경사면이 형성되고, 상기 상하부 실린더 블록 사이에 상하 이동 가능하게 설치되며, 상기 크랭크 샤프트가 회전 가능하게 삽입될 수 있는 베어링이 장착되는 지지체와, ⅱ)상기 지지체의 상부에 설치되어 그 지지체로 탄성력을 제공하는 탄성부재와, ⅲ)상기 지지체를 상측 방향으로 이동시키기 위해 상기 지지체의 경사면에 슬립 접촉하며 상기 하부 실린더 블록에 왕복 이동 가능하게 지지되는 슬라이더와, ⅳ)상기 크랭크 샤프트에 대응하여 상기 하부 실린더 블록에 회전 가능하게 구성되어 상기 슬라이더에 작동력을 제공하는 작동유닛과, ⅴ)상기 슬라이더와 상기 작동유닛을 상호 연결하며, 상기 작동유닛의 회전 운동을 직선 운동으로 변환하여 상기 작동유닛의 작동력을 상기 슬라이더로 전달하는 동력 전달유닛을 포함한다.
압축비(compression ratio), 행정(stroke)

公开(公告)号：KR101081191B1

公开(公告)日：2011-11-07

申请号：KR1020090115516

申请日：2009-11-27

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02D35/00 ,  F02D41/04 ,  F02D41/02

Abstract: 본발명은디젤엔진의제어기준값 산출방법에관한것으로, 연소압력센서를통해측정된연소압력에서모터링압력을빼서순수연소압력을산출하고, 순수연소압력을적분한순수연소압력적분값의한 시점이되는크랭크앵글과, 연소압력중에서상사점이후에연소압력이가장낮은지점의크랭크앵글을통해서제어기준값을산출하여, 하나의기준점에오류가발생하였을경우에나머지하나의값에의해서오류를완화시킬수 있으므로하나의기준값을이용할때 보다안정적으로제어기준값을산출할수 있다.

公开(公告)号：KR1020110058953A

公开(公告)日：2011-06-02

申请号：KR1020090115515

申请日：2009-11-27

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02D35/00 ,  F02D41/04 ,  F02D41/02

CPC classification number: F02D45/00 ,  F02D35/023 ,  F02D35/028 ,  Y02T10/44

Abstract: PURPOSE: A method for calculating control reference value of diesel engine is provided to stably perform rapid calculation by simplifying calculation procedure. CONSTITUTION: A method for calculating control reference value of diesel engine comprises next steps. A combustion pressure of a cylinder of an engine about a crank angle is measured using a combustion pressure sensor(S1). A motoring pressure is calculated about the crank angle(S2). The motoring pressure is generated from the combustion pressure during the simple vertical movement of an engine. The pure water combustion pressure is calculated about the crank angle(S3). The pure water combustion pressure is generated by combusting fuel after removing the monitoring pressure from the combustion pressure. The control reference value is calculated through the pure water combustion pressure about the crank angle(S4).

Abstract translation: 目的：提供一种计算柴油机控制参考值的方法，通过简化计算程序稳定执行快速计算。 构成：计算柴油机控制参考值的方法包括以下步骤。 使用燃烧压力传感器（S1）测量发动机的气缸的围绕曲柄角的燃烧压力。 关于曲轴角度计算出驾驶压力（S2）。 在发动机简单的垂直运动期间，起动压力是由燃烧压力产生的。 关于曲柄角度计算纯水燃烧压力（S3）。 在从燃烧压力中除去监测压力之后，燃烧燃料产生纯水燃烧压力。 通过纯水燃烧压力约曲柄角度计算控制参考值（S4）。

公开(公告)号：KR1020100061202A

公开(公告)日：2010-06-07

申请号：KR1020080120107

申请日：2008-11-28

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02B75/04 ,  F02B75/00

CPC classification number: F02B75/047

Abstract: PURPOSE: A variable compression ratio apparatus for an automobile engine is provided to enable low compression ratio by moving a crank shaft down up to fixed height according to the vertical downward movement of a support body. CONSTITUTION: A variable compression ratio apparatus for an automobile engine comprises support bodies(110,120), an elastic member, a slider, an operating unit, and a power transmission unit. An incline is formed on the lower surface of the support body. The support body moves up and down between upper and lower cylinder blocks. The support body comprises a bearing into which a crank shaft(30) can be rotatably inserted. The elastic member is installed on the upper part of the support body and provides the elastic force to the support body. The slider contacts the incline of the support body to move the support body in an upper direction. The slider is movably supported on the lower cylinder block to be reciprocated. The operating unit is formed on the lower cylinder block to be rotated, corresponding to the crank shaft. The operating unit provides the operation force to the slider. The power transmission unit connects the slider and the operating unit. The power transmission unit changes the rotational motion of the operating unit into the linear motion and transmits the operation force of the operating unit to the slider.

Abstract translation: 目的：提供一种用于汽车发动机的可变压缩比装置，通过根据支撑体的垂直向下运动将曲轴向下移动到固定高度来实现低压缩比。 构成：用于汽车发动机的可变压缩比装置包括支撑体（110,120），弹性构件，滑块，操作单元和动力传递单元。 在支撑体的下表面上形成斜面。 支撑体在上下缸体之间上下移动。 支撑体包括轴承，曲轴（30）可旋转地插入该轴承中。 弹性构件安装在支撑体的上部，并将弹性力提供给支撑体。 滑块接触支撑体的倾斜部，以沿上方移动支撑体。 滑动件可移动地支撑在下部气缸体上以便往复运动。 操作单元形成在下部缸体上，以相应于曲轴旋转。 操作单元为滑块提供操作力。 电力传输单元连接滑块和操作单元。 动力传递单元将操作单元的旋转运动改变为直线运动，并将操作单元的操作力传递到滑块。

公开(公告)号：KR1020100061196A

公开(公告)日：2010-06-07

申请号：KR1020080120100

申请日：2008-11-28

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02B27/02 ,  F02B27/00

CPC classification number: Y02T10/146 ,  F02B27/02 ,  F02B27/00

Abstract: PURPOSE: A variable compression ratio apparatus for a vehicle engine is provided to change the compression ratio of a mixer by changing the mounting height of a crack shaft according to the operation state of an engine. CONSTITUTION: A variable compression ratio apparatus for a vehicle engine comprises a support body(110,120), an elastic member, and a slider(150), and an operating unit(170). An incline(121) is formed on the lower surface of the support body. The support body moves up and down between upper and lower cylinder blocks(10,15). Bearings(70,75) into which a crank shaft is inserted are mounted on the support body. An elastic member is installed on the top of the support body and provides elastic force to the support body. The slider contacts the incline of the support body and is supported on the lower cylinder block to move in a reciprocating motion. The operating unit is installed in the lower cylinder block, contacts the slider, and selectively provides pressure to the slider.

Abstract translation: 目的：提供一种用于车辆发动机的可变压缩比装置，以通过根据发动机的操作状态改变裂纹轴的安装高度来改变混合器的压缩比。 构成：用于车辆发动机的可变压缩比装置包括支撑体（110,120），弹性构件和滑块（150）以及操作单元（170）。 在支撑体的下表面上形成斜面（121）。 支撑体在上下气缸体（10,15）之间上下移动。 安装曲柄轴的轴承（70,75）安装在支撑体上。 弹性构件安装在支撑体的顶部上并向支撑体提供弹性力。 滑块接触支撑体的倾斜部，并且被支撑在下部气缸体上以往复运动移动。 操作单元安装在下气缸体中，接触滑块，并有选择地向滑块提供压力。

公开(公告)号：KR1020100007183A

公开(公告)日：2010-01-22

申请号：KR1020080067695

申请日：2008-07-11

Applicant: 현대자동차주식회사

Inventor： 변기욱

IPC: F02B75/04 ,  F02B75/32

CPC classification number: F02B75/047 ,  F02D15/02

Abstract: PURPOSE: A compression ratio variable apparatus and an engine using the same are provided to change the compression ratio of a mixer by changing the mounting height of a crank shaft according to the operation condition of an engine. CONSTITUTION: A compression ratio variable apparatus comprises an operating cylinder(35) and an operating piston(40). The operating cylinder receives the hydraulic pressure according to the operation state of an engine. The operating piston is mounted within the operating cylinder to change the mounting height of a crank shaft(30) by the hydraulic pressure. The compression ratio variable apparatus changes the mounting height of the crank shaft according to the operation state of the engine, and the compression ratio of a mixer is changed.

Abstract translation: 目的：提供一种压缩比可变装置和使用其的发动机，以通过根据发动机的运行状态改变曲轴的安装高度来改变混合器的压缩比。 构成：压缩比可变设备包括操作缸（35）和操作活塞（40）。 操作缸根据发动机的运转状态接收液压。 操作活塞安装在操作缸内，以通过液压改变曲轴（30）的安装高度。 压缩比可变装置根据发动机的运转状态改变曲轴的安装高度，改变混合器的压缩比。