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KR100303818B1 - Turbocharger - Google Patents

Turbocharger Download PDF

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Publication number
KR100303818B1
KR100303818B1 KR1019970080983A KR19970080983A KR100303818B1 KR 100303818 B1 KR100303818 B1 KR 100303818B1 KR 1019970080983 A KR1019970080983 A KR 1019970080983A KR 19970080983 A KR19970080983 A KR 19970080983A KR 100303818 B1 KR100303818 B1 KR 100303818B1
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South Korea
Prior art keywords
turbine
case
flow area
wheel
driving rod
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Korean (ko)
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KR19990060740A (en
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현충헌
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이계안
현대자동차주식회사
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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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

PURPOSE: A turbo charger is provided for optimization of supplying efficiency by controlling induction gas as well as exhaust gas in a turbine wheel based on engine driving state. CONSTITUTION: A turbo charger(1) has a blower case(20) and a bearing case(30). The blower case has a turbine case(10) and a compressor wheel(21). The turbine case(10) and the compressor wheel(21) is bearing-supported in the bearing case(30). A plurality of variable nozzles(22) is formed along the inner side of the turbine case(10) to control the flowing area of exhaust gas introducing to the turbine wheel(11). One end of a driving rod(23) is supported in the variable nozzle(22), and the other end of the driving rod(23) is formed protrudingly to the outside of the blower case(20). A link(50) controls exhaust flow area as well as induction flow area by being supported at its one end with the driving rod(23), and being connected with a driving rod(13) interconnected with an actuator(40).

Description

터보 차저Turbocharger

본 발명은 엔진 구동상태에 따라 터빈 휠에서의 배기가스 유동량이 가변조절 되도록 하는 조정장치에 연동하여 컴프레서 휠측으로 유도되는 흡기 유동량이 조절되도록 하는 터보 차저에 대한 것이다.The present invention relates to a turbocharger for controlling the amount of intake air flow directed to the compressor wheel in conjunction with an adjusting device for varying the amount of exhaust gas flow in a turbine wheel according to an engine driving state.

일반적인 터보 차저는 배기가스에 의해 회전하는 터빈 휠과 실린더에 공기를 압송하는 컴프레서 휠을 로터에 동축선상으로 축설시켜 터빈 케이스로 유입되는 배기가스의 배출력에 의해 터빈 휠을 고속회전시키고, 이때 동축선상의 컴프레서 휠을 동시에 고속 회전시켜 블로워 케이스내로 흡입되는 공기를 실린더로 압송시키므로서 실린더에서의 흡기 충전율이 증대되도록 하는 것이다.A general turbocharger coaxially installs a turbine wheel that rotates by exhaust gas and a compressor wheel that delivers air to a cylinder, and rotates the turbine wheel at high speed by the discharge force of the exhaust gas flowing into the turbine case. By simultaneously rotating the linear compressor wheel at a high speed, the air sucked into the blower case is pushed into the cylinder, thereby increasing the intake filling rate in the cylinder.

이렇게 컴프레서 휠에 의해 과급되는 공기에 의해 엔진에서는 전자적인 제어에 의해 연료의 분사량도 증가시키게 되므로 결국 연소력을 향상시켜 엔진 출력을 증대시키게 되는 효과가 있게 된다.As the air supercharged by the compressor wheel increases the injection amount of fuel by the electronic control in the engine, the engine power is increased by increasing the combustion power.

하지만 터빈 휠을 구동시키게 되는 배기가스의 배출력은 엔진의 구동상태에 따라 달라지게 되므로 고속에서는 터빈 휠을 고속 회전시킬 수가 있지만 저속에서는 터빈 휠의 회전수가 대단히 낮아져 컴프레서 휠에서의 흡기 충진이 전혀 이루어지지 않게 되고, 도리어 컴프레서 휠이 흡기의 유입을 저해하는 요인으로 작용하면서 출력 저하의 결과를 초래하기도 한다.However, since the discharge power of the exhaust gas driving the turbine wheel depends on the driving state of the engine, the turbine wheel can be rotated at high speed at high speed, but at low speed, the rotation speed of the turbine wheel is very low, so that the intake filling at the compressor wheel is completely absent. In addition, the compressor wheel acts as a factor of inhibiting the inflow of intake air, which may result in a decrease in output.

이러한 저속 구동성의 약화를 보상시키기 위해 최근에는 터빈 휠로 유도되는 배기가스량을 엔진 구동상태에 따라서 조절되도록 하는 일명 VGT(Variable Geometric Turvine)장치라는 구조가 다양한 방법으로 적용되고 있는바 이를 쉽게 설명하면 터빈 휠측으로의 배기유동면적을 변화시켜 배기 유동량이 적은 저속 구동시에는 터빈 휠로의 배기 유동 면적을 축소시키고, 배기 유동량이 많은 고속 구동시에는 반대로 터빈 휠로의 배기유동면적을 확장시켜 터빈 휠의 구동 효율을 극대화시키도록 하는 것인바 예를들면 제3도 및 제4도에서와 같이 터빈 휠(110) 외측으로 터빈 케이스(100)에 다수개의 노즐(120)을 장착하고, 상기의 노즐(120)들은 엔진 흡기 부압 또는 전자적인 제어에 의한 별도의 액츄에이터(200)에 의해서 회동되도록 하여 터빈 휠(110)측으로의 배기가스 유동면적이 가변적으로 조정되도록 하고 있다.In order to compensate for such low-speed driveability, recently, a structure called a VGT (Variable Geometric Turvine) device that adjusts the amount of exhaust gas induced by the turbine wheel according to the engine driving state has been applied in various ways. By changing the exhaust flow area to the side, the exhaust flow area to the turbine wheel is reduced in low speed driving with low exhaust flow volume, and the exhaust flow area to the turbine wheel is expanded in contrast to high speed driving with high exhaust flow volume. For example, as shown in FIGS. 3 and 4, a plurality of nozzles 120 are mounted on the turbine case 100 to the outside of the turbine wheel 110, and the nozzles 120 are the engines. Exhaust gas to the turbine wheel 110 side by being rotated by a separate actuator 200 by the intake negative pressure or electronic control And that the same area is variably adjusted.

따라서 저속에서는 터빈 휠(110)측으로의 배기유동면적을 축소시켜 터빈 휠(110)에 배기가스가 집중되도록 하여 배출력을 증강시키므로서 터빈 휠(110)의 추동력을 증대시켜 흡기의 과급효율이 증대될 수 있도록 하는 동시에 반대로 고속에서는 과도하게 터빈 휠(110)로 배기가스가 유도되는 경우에는 터빈 휠(110)에 배기가스가 넓은 범위로 분산되도록 하여 배기력을 저감시키므로서 과도한 과급이 방지되도록 하고 있다.Therefore, at a low speed, the exhaust flow area toward the turbine wheel 110 is reduced to concentrate the exhaust gas on the turbine wheel 110, thereby increasing the discharge force, thereby increasing the driving force of the turbine wheel 110, thereby increasing the charging efficiency of the intake air. At the same time, when exhaust gas is induced to the turbine wheel 110 excessively at a high speed, the exhaust gas is dispersed in the turbine wheel 110 in a wide range so as to reduce the exhaust force and to prevent excessive charging. have.

그러나 아무리 배기가스에 의해 터빈 휠(110)을 회전시키게 되더라도 컴프레서 휠(410)로 유도되는 흡입 공기량이 과도하게 적게 되면 블로워 케이스(400)내에서 컴프레서 휠(140)의 전후 압력차가 커져 도리어 흡기의 압축이 약화되는 서징현상을 초래하게 되고, 반대로 컴프레서 휠(410)로 유도되는 공기량이 과도하게 많게 리면 컴프레서 휠(410)의 구동이 어려워지는 초킹현상이 초래되는 문제점이 있다.However, even if the turbine wheel 110 is rotated by the exhaust gas, if the amount of intake air guided to the compressor wheel 410 is excessively small, the pressure difference between the compressor wheel 140 in the blower case 400 increases and the pressure of the intake air is increased. The compression is weakened, and the surging phenomenon is caused. On the contrary, if the amount of air guided to the compressor wheel 410 is excessively large, there is a problem that the driving of the compressor wheel 410 becomes difficult.

이에 본 발명은 상기한 문제점을 개선시키기 위해 안출한 것으로 본 발명은 블로워 케이스로 상기한 터빈 휠 케이스의 배기 유동량 조절용 노즐과 동일한 형상으로 가변노즐이 형성되도록 하여 엔진 구동상태 변화에 따라 터빈 휠측에서의 배기 유동량 조절용 노즐과 연동하여 흡기 유동량이 조절되면서 과급효율을 최적화시키도록 하는 구성을 제공코자 하는데 주된 목적이 있다.Accordingly, the present invention has been made in order to improve the above problems, and the present invention provides a blower case in which the variable nozzle is formed in the same shape as the nozzle for adjusting the exhaust flow of the turbine wheel case. The main purpose is to provide a configuration for optimizing the charging efficiency while adjusting the intake air flow in conjunction with the flow rate adjusting nozzle.

상기한 목적을 달성시키기 위한 수단으로서 본 발명은 엔진 구동상태에 따라 액츄에이터를 작동시켜 터빈 케이스내로 장착시킨 다수개의 노즐들을 회전시키면서 터빈 휠측으로 유도되는 배기가스의 유동면적이 가변적으로 조정되도록 하는 구조에 있어서, 블로워 케이스에서 컴프레서 휠측으로 공기가 유도되는 내주면에 일단부가 회동 가능하게 축지지되면서 서로의 일측면끼리 겹쳐지게 하여 타단부간으로 형성되는 공기유동면적이 가변적으로 조절되도록 한 다수개의 가변 노즐과; 상기한 가변 노즐들 중 하나의 가변 노즐에 일단이 축지지되고, 타단은 블로워 케이스 외측으로 돌설되도록 한 구동 로드와; 치측으로 인출시킨 구동 로드의 인출단부에 일단이 축지지되고, 타단은 상기한 액츄에이터에 의해 연동하는 작동 로드에 축연결되도록 한 링크에 의해 배기구동면적이 조절되면서 흡기유동면적도 동시에 조절될 수 있도록 한 구성이 특징이다.As a means for achieving the above object, the present invention provides a structure in which the flow area of the exhaust gas guided to the turbine wheel side is variably adjusted while rotating the plurality of nozzles mounted in the turbine case by operating the actuator according to the engine driving state. In the blower case, a plurality of variable nozzles having one end portion pivotably rotatably supported on the inner circumferential surface where air is guided from the blower case to the compressor wheel side and overlapping one side surface with each other to variably adjust the air flow area formed between the other end portions. ; A driving rod having one end axially supported by one of the variable nozzles and the other end protruding out of the blower case; One end is axially supported on the lead end of the driving rod drawn out to the tooth side, and the other end is controlled by the link which is axially connected to the working rod interlocked by the actuator so that the intake flow area can be adjusted simultaneously. One configuration is characterized.

제1도는 본 발명에 따른 일실시예 구조도.1 is a structural diagram of an embodiment according to the present invention.

제2도는 본 발명의 작동 상태도.2 is an operational state diagram of the present invention.

제3도 및 제4도는 종래의 터보 차저 예시도.3 and 4 illustrate a conventional turbocharger.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 터빈 케이스 11 : 터빈 휠10 turbine case 11: turbine wheel

12 : 노즐 13 : 작동 로드12 nozzle 13 operating rod

20 : 블로워 케이스 21 : 컴프레서 휠20: blower case 21: compressor wheel

22 : 가변 노즐 23 : 구동 로드22: variable nozzle 23: drive rod

40 : 액츄에이터 50 : 링크40: actuator 50: link

이를 첨부한 도면을 참조하여 보다 상세하게 설명하면 다음과 같다.This will be described in more detail with reference to the accompanying drawings.

제1도는 본 발명에 따른 일실시예 구조를 도시한 것으로서, 도면부호 1은 터보 차저이다.1 shows an embodiment structure according to the present invention, in which reference numeral 1 is a turbocharger.

상기한 터보 차저(1)는 터빈 휠(11)이 내장되는 터빈 케이스(10)와 컴프레서 휠(21)이 내장되는 블로워 케이스(20)와 상기한 터빈 휠(11)과 컴프레서 휠(21)을 양단부에 고정축설시켜 베어링지지되도록 하는 베어링 케이스(30)로서 형성되는 구성으로 특히 상기한 터빈 케이스(10)에는 내주면으로 별도의 액츄에이터(40)에 의해서 회동하게 되는 다수개의 노즐(12)들이 축설되도록 하여 터빈 휠(11)로 유도되는 배기가스의 유동면적이 조절되도록 형성한 구조는 종전과 동일하다.The turbocharger 1 includes a turbine case 10 in which the turbine wheel 11 is embedded, a blower case 20 in which the compressor wheel 21 is embedded, and the turbine wheel 11 and the compressor wheel 21. In particular, the turbine case 10 includes a plurality of nozzles 12 pivoted by a separate actuator 40 on the inner circumferential surface of the turbine case 10. Therefore, the structure formed so that the flow area of the exhaust gas guided to the turbine wheel 11 is the same as before.

이상의 구성에 대해 본 발명은 터빈 케이스(10)에서와 마찬가지로 블로워 케이스(20)의 공기가 흡입되는 측 내주면으로 다수개의 가변 노즐(22)이 회동 가능하게 축설되도록 하되 상기한 가변 노즐(22)들은 서로 연동이 가능하게 연결되며, 터빈측 노즐(12)들의 구동원인 액츄에이터(40)에 의해 동시에 회동되도록 한다.As described above, in the present invention, as in the turbine case 10, the plurality of variable nozzles 22 are rotatably arranged on the side inner circumferential surface on which the air of the blower case 20 is sucked, but the variable nozzles 22 are It is connected to each other so as to be interlocked, and to be rotated at the same time by the actuator 40 which is the driving source of the turbine-side nozzles (12).

즉 상기한 액츄에이터(40)로부터 터빈측 노즐(12)과 연결되는 작동 로드(13)에 블로워 케이스(20)측으로 연결되는 링크(50)의 일단부를 연긱하고, 상기의 링크(50)에는 타단부로 구동 로드(23)의 일단부가 연결되며, 상기의 구동 로드(23,) 타단부는 블로워 케이스(20)내에 축설시킨 가변 노즐(22)들 중 하나의 가변 노즐(22)에 연결되어 액츄에이터(40)의 구동에 따라 다수개의 가변 노즐(22)들이 동시에 연동되도록 하는 구조이다.That is, one end of the link 50 connected to the blower case 20 side is connected to the operation rod 13 connected to the turbine-side nozzle 12 from the actuator 40, and the other end is connected to the link 50. One end of the furnace driving rod 23 is connected, and the other end of the driving rod 23, is connected to one of the variable nozzles 22 among the variable nozzles 22 arranged in the blower case 20, thereby providing an actuator ( According to the driving of 40, a plurality of variable nozzles 22 are interlocked at the same time.

특히 상기한 가변 노즐(22)은 터빈측 노즐(12)과는 달리 컴프레서 휠(21)로 유동하게 되는 흡입 공기량 유동면적을 가변시킬 수 있도록 일단은 블로워 케이스(20)의 내주면(20a)으로 회동 가능하게 축지지되면서 각 일측면(22a)들끼리는 서로 동일하게 겹쳐지게 하여 블로워 케이스(20)에 축지지된 일단부를 축으로 회동하면서 타단부측(22a) 가변 노즐(22)들간 간격이 축소 및 확장되면서 컴프레서 휠(21)로 유도되는 흡입 공기량이 조절되도록 하는 구성이다.In particular, the variable nozzle 22 is rotated at one end to the inner circumferential surface 20a of the blower case 20 so as to vary the flow area of the intake air amount flowing to the compressor wheel 21 unlike the turbine side nozzle 12. The interval between the variable nozzles 22 of the other end side 22a is reduced while pivoting one end portion 22a of the one side 22a which is axially supported and possibly overlapping each other. It is configured to adjust the amount of intake air guided to the compressor wheel 21 while being expanded.

즉, 상기 각각의 가변 노즐(22)은 독립개체로 된 여러개의 가변 노즐(22)의 일측을 블로워 케이스(20)의 내주면(20a)상에 일정각도 회동가능하게 축지시키고, 독립개체로 된 가변노즐(22)의 타단(22a)은 서로 일정부분이 겹쳐지도록 하여 가변 노즐(22)이 확개될때는 각각의 가변노즐(22)간 겹쳐지는 면적이 작아지고, 가변노즐(22)이 축소될때에는 각각의 가변노즐(22)간 겹쳐지는 면적이 커지도록 하여 가변노즐의 확개 또는 축소가 원활해지도록 한 것이다.That is, each of the variable nozzles 22 rotatably axially rotates one side of the plurality of variable nozzles 22 made of independent objects on the inner circumferential surface 20a of the blower case 20, and is made of independent objects. The other end 22a of the nozzle 22 is overlapped with a predetermined portion so that when the variable nozzle 22 is expanded, the area overlapping between the variable nozzles 22 becomes small, and when the variable nozzle 22 is reduced, The overlapping area between the variable nozzles 22 is increased so that the expansion or reduction of the variable nozzles is smooth.

도면상에는 각각의 가변노즐(22)을 도시하는 것을 생략하였다.In the figure, illustration of each variable nozzle 22 is omitted.

이상의 구성에 따른 본 발명의 작용 및 그 효과에 대해서 살펴보면 다음과 같다.Looking at the operation and effects of the present invention according to the above configuration as follows.

엔진이 저속 구동시 엔진에서 연소된 연소가스량은 비교적 적게 형성되므로 터빈측으로 유도되는 배기가스량도 적으며, 마찬가지로 엔진 부압에 따라 변화되는 흡기 유동량도 적게 형성된다.When the engine is driven at low speed, the amount of combustion gas burned by the engine is relatively small, so the amount of exhaust gas directed to the turbine side is small, and the amount of intake air flow that varies according to engine negative pressure is also formed.

이때 엔진 구동상태에 따라서 제어되는 액츄에이터(40)의 작동으로 제1도에서와 같이 터빈 케이스(10)측 노즐(12)과 연결되는 작동 로드(13)가 작동되면 상기의 작동 로드(13)와 링크(50)로 연결된 블로워 케이스(20)측 가변 노즐(22)도 동시에 작동되면서 터빈 휠(11)과 컴프레서 휠(21)로 유도되는 배기유동면적과 흡기유동면적을 축소시키게 된다.At this time, when the operating rod 13 connected to the nozzle 12 on the turbine case 10 side is operated by the operation of the actuator 40 controlled according to the engine driving state, the operating rod 13 and The blower case 20 side variable nozzle 22 connected by the link 50 is also operated simultaneously to reduce the exhaust flow area and the intake flow area guided by the turbine wheel 11 and the compressor wheel 21.

이렇게 유동면적이 축소되면 터빈 휠(11)과 컴프레서 휠(21)로 배기와 흡기가 보다 조밀한 밀도로 유도되므로 터빈 휠(11)과 컴프레서 휠(21) 구동력을 증대시킬 수가 있게 되므로 저속에서 제대로의 과급이 수행되면서 출력을 증대시킬 수 있게 된다.When the flow area is reduced in this way, since the exhaust and intake air are induced by the turbine wheel 11 and the compressor wheel 21 at a denser density, the driving force of the turbine wheel 11 and the compressor wheel 21 can be increased. As the supercharging is performed, the output can be increased.

한편 엔진이 고속으로 구동되면 제2도에서 보는바와 같이 상기와는 반대로 터빈 휠(11)과 컴프레서 휠(21)로 유도되는 배기량 및 흡기량이 다량으로 형성되므로 이때에는 액츄에이터(40)에 의해 터빈 케이스(10)측 노즐(12)과 블로워 케이스(20)측 가변 노즐(22)을 작동시켜 유동면적이 확장되도록 하므로서 터빈 휠(11)과 컴프레서 휠(21)에서의 구동력을 증대시키게 된다.On the other hand, when the engine is driven at a high speed, as shown in FIG. 2, since the exhaust amount and the intake air amount induced by the turbine wheel 11 and the compressor wheel 21 are formed in a large amount as described above, the turbine case is driven by the actuator 40 at this time. The driving force in the turbine wheel 11 and the compressor wheel 21 is increased by operating the (10) side nozzle 12 and the blower case 20 side variable nozzle 22 to expand the flow area.

이와같은 작용에 의해 터빈 휠(11)과 컴프레서 휠(21)로 유도되는 배기량과 흡기량을 최적화하게 되면 각 구동효율이 극대화되면서 배기력 및 과급력을 항상 안정되게 유지시킬 수가 있게 된다.By optimizing the exhaust amount and the intake air amount induced by the turbine wheel 11 and the compressor wheel 21 by such an operation, each driving efficiency can be maximized and the exhaust force and the supercharge power can be kept stable at all times.

특히 상기와 같은 구성시 블로워 케이스(20)측으로 형성되는 가변 노즐(22)들의 작동을 위해 별도의 액츄에이터를 구비시키지 않아도 되므로 부가되는 구조의 간소화로 최대한 경제적인 구조형성이 가능해지게 되는 동시에 기존 터보 차저에서의 가장 문제시되던 저속에서의 과급 효율 저하가 방지되는 성능 향상이 기대된다.In particular, since it is not necessary to provide a separate actuator for the operation of the variable nozzles 22 formed on the blower case 20 side as described above, the economical structure can be made possible by the simplification of the added structure and the existing turbocharger. The performance improvement is expected to prevent the deterioration of the supercharge efficiency at the low speed, which was the most problematic problem at.

그러므로 본 발명에 따른 터보 차저에 의해 보다 경제적으로 과급 효율을 극대화시킬 수가 있게 되는 동시에 특히 저속 구동성의 증대로 엔진 성능을 향상시키게 되고, 고속에서의 지나친 과급을 방지시키게 되므로서 내구력이 증강되는 매우 유용한 효과를 제공하게 되는 것이다.Therefore, the turbocharger according to the present invention can maximize the charging efficiency more economically and at the same time improve the engine performance by increasing the low speed driveability, and prevent the excessive charging at high speed, which is very useful for improving durability. Will provide an effect.

Claims (1)

엔진 구동상태에 따라 액츄에이터를 작동시켜 터빈 케이스내로 장착시킨 다수개의 노즐들을 회전시키면서 터빈 휠측으로 유도되는 배기가스의 유동면적이 가변적으로 조정되도록 하는 구조에 있어서, 블로워 케이스(20)에서 컴프레서 휠(21)측으로 공기가 유도되는 내주면에 일단부가 회동 가능하게 축지지되면서 서로의 일측면끼리 겹쳐지게 하여 타단부간으로 형성되는 공기유동면적이 가변적으로 조절되도록 한 다수개의 가변 노즐(22)과; 상기한 가변 노즐(22)들 중 하나의 가변 노즐(22)에 일단이 축지지되고, 타단은 블로워 케이스(20) 외측으로 돌설되도록 한 구동 로드(23)와; 외측으로 인출시킨 구동 로드(23)의 인출단부에 일단이 축지지되고, 타단은 상기한 액츄에이터(40)에 의해 연동하는 작동 로드(13)에 축연결되도록 한 링크(50)에 의해 배기유동면적이 조절되면서 흡기유동면적도 동시에 조절될 수 있도록 한 구성을 특징으로 하는 터보 차저.In the structure in which the flow area of the exhaust gas guided to the turbine wheel side is variably adjusted while rotating the plurality of nozzles mounted in the turbine case by operating the actuator according to the engine driving state, the compressor wheel 21 in the blower case 20. A plurality of variable nozzles 22 having one end pivotably rotatably supported on an inner circumferential surface where air is guided to the side) so that one side surface of each other overlaps so that an air flow area formed between the other ends is variably controlled; A driving rod 23 having one end axially supported by one of the variable nozzles 22 and the other end protruding out of the blower case 20; One end is axially supported by the lead end of the driving rod 23 drawn outward, and the other end is exhausted by the link 50 which is axially connected to the operation rod 13 interlocked by the actuator 40 described above. Turbocharger characterized in that the configuration so that the intake flow area can be adjusted at the same time while being adjusted.
KR1019970080983A 1997-12-31 1997-12-31 Turbocharger Expired - Fee Related KR100303818B1 (en)

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KR100435743B1 (en) * 2001-10-11 2004-06-12 현대자동차주식회사 A control device for a turbo-charger
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