KR20070060383A - The smallest flow of the vane was possible variable geometry turbocharger - Google Patents

The smallest flow of the vane was possible variable geometry turbocharger Download PDF

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Publication number
KR20070060383A
KR20070060383A KR1020050119724A KR20050119724A KR20070060383A KR 20070060383 A KR20070060383 A KR 20070060383A KR 1020050119724 A KR1020050119724 A KR 1020050119724A KR 20050119724 A KR20050119724 A KR 20050119724A KR 20070060383 A KR20070060383 A KR 20070060383A
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South Korea
Prior art keywords
vane
flow path
variable geometry
geometry turbocharger
exhaust gas
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KR1020050119724A
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Korean (ko)
Inventor
강표현
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현대자동차주식회사
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Priority to KR1020050119724A priority Critical patent/KR20070060383A/en
Publication of KR20070060383A publication Critical patent/KR20070060383A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/40—Application in turbochargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

A variable geometry turbocharger structure for securing the minimum passage of a vane is provided to show the highest power efficiency in low speed/high speed sections of the vehicle in which the VGT is installed. A variable geometry turbocharger structure for securing the minimum passage of a vane includes a rotational arm(4) and an inner rod(2). The rotational arm is installed in a center housing(3) of a variable geometry turbocharger and is connected to an actuator rod(5). The inner rod is formed in the rotational arm. A protruding piece is separated from the upper side of the rotational arm in which the inner rod is formed so that the minimum passage of the exhaust gas flowing through the vane can be secured.

Description

베인의 최소 유로 확보가 가능한 가변 용량 제어 터보차저 구조{The Smallest Flow Of The Vane Was Possible Variable Geometry Turbocharger}The Smallest Flow Of The Vane Was Possible Variable Geometry Turbocharger

도 1은 본 발명에 의한 베인의 최소 유로 확보가 가능한 가변 용량 제어 터보차저 구조를 도시한 도면.1 is a view showing a variable capacity control turbocharger structure capable of securing a minimum flow path of a vane according to the present invention.

도 2는 본 발명에 의한 베인의 최소 유로 확보가 가능한 가변 용량 제어 터보차저 구조의 작동 상태를 도시한 도면.2 is a view showing an operating state of a variable capacity control turbocharger structure capable of securing a minimum flow path of vanes according to the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 : 베인 2 : 내부로드1: vane 2: internal load

3 : 센터하우징 4 : 회전암3: center housing 4: rotation arm

5 : 액츄에이터 로드5: Actuator rod

본 발명은 VGT에 설치되는 베인의 기구학적인 최소 유로를 확보하는 동시에 상기 VGT의 생산성 향상과 원가절감이 가능한 베인의 최소 유로 확보가 가능한 가변터보차저 구조에 관한 것이다.The present invention relates to a variable turbocharger structure capable of securing a minimum flow path of the vane capable of improving productivity and cost reduction of the VGT while securing a kinematic minimum flow path of the vanes installed in the VGT.

일반적으로, 터보 디젤엔진에 있어서 저속성능을 향상시키기 위해서 VGT를 적용하고 있으며, 상기한 저속성능을 향상시키기 위해 VGT의 내구성에 문제가 되지 않는 범위내에서 베인을 최대로 닫는다.In general, in the turbo diesel engine, the VGT is applied to improve the low speed performance, and the vane is closed to the maximum within a range that does not affect the durability of the VGT in order to improve the low speed performance.

즉, 상기 베인을 통과하는 배기가스의 유로를 최소로 하여 배기가스의 운동에너지를 극대화시켜 터보차저를 고속회전시킴으로서 엔진으로 유입되는 신기의 충진효율을 높여서 사용하고 있다.In other words, by minimizing the flow path of the exhaust gas passing through the vane to maximize the kinetic energy of the exhaust gas to rotate the turbocharger at high speed, the filling efficiency of the new air flowing into the engine is increased.

여기에서 배기가스 유로를 최소가 되게 설정하는 것이 스톱퍼로 상기 스톱퍼에 의해 액츄에이터 로드의 최대 운동거리가 제한되고 액츄에이터에 연결되어 있는 베인의 궤적(최대 닫힘)이 제한되는 것이다Here, setting the exhaust gas flow path to the minimum means that the stopper limits the maximum travel distance of the actuator rod and the trajectory (maximum closing) of the vanes connected to the actuator by the stopper.

스톱퍼는 볼트형식으로 터보차저 센터하우징의 탭에 고정되고 풀림방지를 위한 너트가 조립되어 있다. 하지만, 상기 스톱퍼의 풀림 및 이탈 발생시 액츄에이터가 과도하게 움직이게되어 상기 베인을 완전히 닫아 배기가스 유로를 막게되는 경우가 발생하였다.The stopper is bolted to the tab of the turbocharger center housing and has a nut to prevent loosening. However, when the stopper is loosened or detached, the actuator may be excessively moved to completely close the vanes to block the exhaust gas flow path.

상기와 같이 작동하게 되면 배기가 원할히 이루어지지 않아 엔진시동이 꺼지고, 흡배기 밸브등 밸브 기구의 손상등이 발생되는 문제점이 발생되었다.When the operation is performed as described above, the engine is turned off because the exhaust is not made smoothly, and problems such as damage to the valve mechanism such as the intake and exhaust valves are generated.

상기한 엔진 고장을 방지하기 위한 안정장치로 VGT에서는 기구학적으로 베인의 최소 유로를 보장하는 구조가 형성되어 있다.As a stabilizer for preventing the engine failure, the VGT has a structure which guarantees the minimum flow path of the vanes mechanically.

현재의 구조는 센터하우징에 액츄에이터와 연결되는 암 및 인터널로드가 안착되는 면을 가공으로 확보하고, 인터널로드의 최대 움직임을 규제하기 위해 부채꼴 형상으로 가공하여 그 궤적을 확보하고 있다.The current structure secures the surface where the arm and the internal rod connected to the actuator are seated in the center housing by machining, and processes the track in the shape of a fan to regulate the maximum movement of the internal rod.

상기한 방법은 가공정도, 가공방법 그리고 가공장비에 제약을 받으며 고가의 설비가 설치되어야할 뿐만 아니라, 복잡한 가공으로 단품의 가격이 비싸지고 이를 제작하기 위해 오랜 시간이 소요되는 등 생산성 측면에서 아주 불리한 문제점이 발생되었다.The above method is not only limited by the processing degree, processing method and processing equipment, but also requires expensive equipment to be installed. In addition, it is very disadvantageous in terms of productivity, such as the cost of a single product due to complicated processing and a long time to produce it. A problem has occurred.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 베인의 기구학적인 최소 유로가 확보가능하도록 구조를 변경하여 터보차저로 유입되는 배기가스를 엔진조건에 따라 최적의 상태로 조절할 수 있는 베인의 최소 유로 확보가 가능한 가변 용량 제어 터보차저 구조를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, the vane that can adjust the exhaust gas flowing into the turbocharger to the optimum state according to the engine conditions by changing the structure to ensure the minimum kinematic flow path of the vane It is an object of the present invention to provide a variable capacity control turbocharger structure capable of securing a flow path.

상기한 목적을 달성하기 위한 본 발명은, 베인을 통해 유동하는 배기 가스의 최소 유로의 확보가 가능하도록 상기 내부로드가 형성된 회전암의 상측에 이격되어 설치되는 돌출편이 구비되는 것을 특징으로 하는 베인의 최소 유로 확보가 가능한 가변 용량 제어 터보차저 구조를 제공하는 것을 특징으로 한다.In order to achieve the above object, the present invention is characterized in that the vane is provided with spaced apart projections provided on the upper side of the rotary arm formed with the inner rod to ensure the minimum flow path of the exhaust gas flowing through the vane A variable capacity controlled turbocharger structure capable of securing a minimum flow path is provided.

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

도 1은 본 발명에 의한 베인의 최소 유로 확보가 가능한 가변 용량 제어 터보차저 구조를 도시한 도면이다.1 is a view showing a variable capacity control turbocharger structure capable of securing a minimum flow path of vanes according to the present invention.

첨부된 도 1을 참조하면, 베인을 통해 유동하는 배기 가스의 최소 유로의 확보가 가능하도록 상기 내부로드(2)가 형성된 회전암(4)의 상측에 이격되어 설치되는 돌출편(10)이 구비된다.Referring to FIG. 1, the protrusion pieces 10 are provided to be spaced apart from the upper side of the rotary arm 4 on which the inner rod 2 is formed so as to secure a minimum flow path of the exhaust gas flowing through the vanes. do.

상기 돌출편(10)은 센터 하우징(3)면에 대해 수직 방향으로 돌출 형성된다.The protruding piece 10 is formed to protrude in a direction perpendicular to the surface of the center housing 3.

상기와 같이 구성되는 본 발명에 의한 베인의 최소 유로 확보가 가능한 가변 용량 제어 터보차저 구조의 작동상태를 설명한다.The operating state of the variable capacity control turbocharger structure capable of securing the minimum flow path of the vane according to the present invention configured as described above will be described.

첨부된 도 2를 참조하면, 차량이 저속으로 주행하면서 베인(1)을 통과하는 배기가스의 유로가 최소화 되도록 회전암(4)이 돌출편(10)과 면접촉이 이루어진다.Referring to FIG. 2, the rotary arm 4 is in surface contact with the protrusion 10 so that the flow path of the exhaust gas passing through the vanes 1 is minimized while the vehicle is traveling at a low speed.

상기 돌출편(10)의 설치 위치는 베인(1)을 통과하는 배기가스의 유로가 최소화 가능한 위치에 해당되며, 상기와 같이 내부로드(2)가 형성된 회전암(4)이 도면에 도시된 바와 같이 돌출편(10)과 접촉되면서 액츄에이터 로드(5)의 최대 운동거리가 제한되어 베인(1)을 통과하는 배기가스의 운동에너지가 극대화된다.The installation position of the protruding piece 10 corresponds to a position where the flow path of the exhaust gas passing through the vanes 1 can be minimized, and the rotary arm 4 having the inner rod 2 as shown in the drawing is shown in the drawing. As described above, the maximum movement distance of the actuator rod 5 is limited while contacting the protruding piece 10 to maximize the kinetic energy of the exhaust gas passing through the vane 1.

상기와 같이 배기가스의 운동에너지가 극대화된 상태에서 터보차저(미도시)를 고속으로 회전시키게 되어 저속에서의 가속성능과 추월성능이 원할하게 이루어진다.As described above, the turbocharger (not shown) is rotated at a high speed in the state where the kinetic energy of the exhaust gas is maximized, so that the acceleration performance and the overtaking performance at a low speed are smoothly performed.

한편, 본 발명은 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다. On the other hand, the present invention can be variously modified by those skilled in the art without departing from the gist of the invention.

이상에서 설명한 바와 같이, 본 발명에 따른 가변 용량 제어 터보차저 구조는 VGT가 설치된 차량의 저속/고속 전구간에서 최고의 동력 성능을 발휘할 수 있도록 VGT의 기구학적인 최소유로가 확보되며, 상기 VGT의 생산성이 향상되는 효과가 있다.As described above, in the variable capacity control turbocharger structure according to the present invention, the minimum kinematic flow path of the VGT is secured to achieve the best power performance between the low speed / high speed light bulbs of the vehicle in which the VGT is installed, and the productivity of the VGT is improved. It is effective.

Claims (1)

가변 용량 제어 터보차저의 센터하우징상에 설치되며 액츄에이터 로드와 연결되는 회전암, 상기 회전암상에 형성되는 내부로드를 포함하는 가변 용량 제어 터보차저의 구조에 있어서,In the structure of a variable capacity control turbocharger comprising a rotary arm installed on the center housing of the variable capacity control turbocharger and connected to the actuator rod, and an internal rod formed on the rotary arm, 베인을 통해 유동하는 배기 가스의 최소 유로의 확보가 가능하도록 상기 내부로드가 형성된 회전암의 상측에 이격되어 설치되는 돌출편(10)이 구비되는 것을 특징으로 하는 베인의 최소 유로 확보가 가능한 가변 용량 제어 터보차저 구조.Variable capacity to ensure the minimum flow path of the vane, characterized in that the protrusion pieces 10 are provided spaced apart from the upper side of the rotary arm formed with the inner rod to ensure the minimum flow path of the exhaust gas flowing through the vane Control turbocharger structure.
KR1020050119724A 2005-12-08 2005-12-08 The smallest flow of the vane was possible variable geometry turbocharger KR20070060383A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220098983A (en) 2021-01-05 2022-07-12 현대위아 주식회사 Variable geometry turbocharger

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001289050A (en) * 1999-05-20 2001-10-19 Hitachi Ltd Variable capacity turbo supercharger
US6419464B1 (en) * 2001-01-16 2002-07-16 Honeywell International Inc. Vane for variable nozzle turbocharger
US6527508B2 (en) * 2001-08-03 2003-03-04 Mark Groskreutz Actuator crank arm design for variable nozzle turbocharger
KR100488773B1 (en) * 2001-11-09 2005-05-12 현대자동차주식회사 Variable geometry turbocharger applied to a micrometer as a stopper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001289050A (en) * 1999-05-20 2001-10-19 Hitachi Ltd Variable capacity turbo supercharger
US6419464B1 (en) * 2001-01-16 2002-07-16 Honeywell International Inc. Vane for variable nozzle turbocharger
US6527508B2 (en) * 2001-08-03 2003-03-04 Mark Groskreutz Actuator crank arm design for variable nozzle turbocharger
KR100488773B1 (en) * 2001-11-09 2005-05-12 현대자동차주식회사 Variable geometry turbocharger applied to a micrometer as a stopper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220098983A (en) 2021-01-05 2022-07-12 현대위아 주식회사 Variable geometry turbocharger

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