WO2011074715A1 - Compressor for a turbocharger - Google Patents

Compressor for a turbocharger Download PDF

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Publication number
WO2011074715A1
WO2011074715A1 PCT/KR2009/007488 KR2009007488W WO2011074715A1 WO 2011074715 A1 WO2011074715 A1 WO 2011074715A1 KR 2009007488 W KR2009007488 W KR 2009007488W WO 2011074715 A1 WO2011074715 A1 WO 2011074715A1
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WO
WIPO (PCT)
Prior art keywords
compressor
turbocharger
inlet pipe
pipe portion
intake air
Prior art date
Application number
PCT/KR2009/007488
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French (fr)
Korean (ko)
Inventor
안재원
강수영
권성
Original Assignee
(주)계양정밀
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Publication of WO2011074715A1 publication Critical patent/WO2011074715A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0253—Surge control by throttling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • 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
    • F02B37/225—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 air passages
    • 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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • 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

Definitions

  • the present invention relates to a compressor of a turbocharger.
  • a turbocharger for this purpose is to increase the engine output by supplying a large amount of air into the combustion chamber of the engine by using the velocity energy of the exhaust gas generated from the engine, where the large amount of air is sent to the combustion chamber by using the exhaust gas
  • the exhaust gas rotates the turbine to operate the compressor, and the compressed air generated by the compressor is supplied to the engine cylinder to increase the amount of air supplied to the cylinder, thereby increasing the amount of fuel to increase the engine output. It is.
  • the conventional turbocharger can not control the flow rate after the compressor case of the compressor is manufactured, it is very limited in use in the surge area (high mountain region, etc.) is not air-charged. Therefore, it is necessary to develop compressor wheels of various specifications in order to secure surge margins in the highlands (highlands), and when a surge occurs, there is a problem of high noise generation and damage to the compressor wheels, and the size of the intake air inlet of the compressor is changed. To this end, there is a problem in that a new compressor case is manufactured by processing the compressor case as a whole.
  • the present invention has been made to solve the above problems, an object of the present invention to prevent the damage of the turbocharger by preventing the surge phenomenon in the surge generation area by adjusting the size of the inlet air inlet of the compressor case It is to provide a compressor of a turbocharger that does not require the development of a separate compressor wheel and a compressor case.
  • the compressor of the turbocharger includes a compressor case having an intake air inlet and an intake air outlet, and a turbocharger shaft provided to compress the air introduced through the intake air inlet and discharge it to the intake air outlet. It includes a compressor wheel installed in the compressor case, characterized in that the inlet air inlet is provided with a flow rate limiting means for restricting the amount of intake air by adjusting the flow path size.
  • the suction air inlet and the suction air outlet are provided with a pressure sensor for measuring the pressure of the suction air, the pressure sensor is electrically connected to a control means for controlling the operation means for operating the flow restriction means.
  • the intake air inlet is formed with an inlet pipe portion for guiding the intake air, and the flow rate limiting means comprises an annular ring provided in the inlet pipe portion, and an operating means for changing the diameter of the annular ring.
  • the intake air inlet is formed with an inlet pipe portion for guiding the intake air, and the flow rate limiting means includes a cutout portion formed directly on the inlet pipe portion, and an operation means for changing the diameter of the inlet pipe portion by changing the width of the cutout portion. It may be made of a structure.
  • the surge region can be expanded to protect the turbocharger, and the inlet flow rate range can be variably used, thereby increasing the efficiency in the low speed region.
  • FIG. 1 is a configuration diagram showing the entire turbocharger to which the present invention is applied;
  • FIG. 2 is a perspective view showing a compressor of a turbocharger according to the present invention
  • Figure 3 is a configuration diagram coupled the operating means to the annular ring of Figure 2
  • FIG. 4 is a configuration diagram showing another embodiment of the pressing means in the compressor of the turbocharger according to the present invention.
  • FIG. 5 is a cross-sectional view showing a portion in which the annular ring and the operating lever are installed in the inlet pipe of FIG.
  • FIG. 6 is a configuration diagram showing another embodiment of the annular ring in the compressor of the turbocharger according to the present invention.
  • FIG. 7 is a sectional view showing another embodiment of the flow restricting means of the present invention.
  • FIG. 8 is a perspective view of FIG.
  • FIG. 1 is a configuration diagram showing the entire turbocharger to which the present invention is applied
  • FIG. 2 is a perspective view showing a compressor of the turbocharger according to the present invention.
  • the turbocharger is provided with a turbocharger shaft 14 through a bearing 12 inside the center housing 10, and a turbine 20 is provided at one side of the turbocharger shaft 14.
  • a compressor 100 is provided on the other side of the turbocharger shaft 14.
  • the center housing 10 has an oil supply port 16 for supplying oil to the bearing 12, and an oil return port 18 for returning oil from the bearing 12.
  • the turbine 20 includes a turbine wheel 22 provided on one side of the turbocharger shaft 14 and a turbine case 24 surrounding the turbine wheel 22.
  • the turbine case 24 has an exhaust gas inlet 26 through which the exhaust gas flows, and an exhaust gas outlet 28 through which the exhaust gas is discharged.
  • the compressor 100 compresses the air flowing through the compressor case 110 having the intake air inlet 111 and the intake air outlet 112 and the intake air inlet 111 to intake air outlet 112.
  • the compressor wheel 120 is provided on the other side of the turbocharger shaft 14 to be discharged to the compressor case 110.
  • the intake air inlet 111 is provided with a flow rate limiting unit 130 for restricting the amount of intake air by adjusting the flow path size.
  • the intake air inlet 111 and the intake air outlet 112 are provided with an inlet pressure sensor 140 and an outlet pressure sensor 142 for measuring inlet and outlet pressure of the intake air, respectively, and the inlet pressure sensor 140.
  • the outlet pressure sensor 142 is electrically connected to the control means 150 for controlling the operation means to be described later.
  • the intake air inlet 111 is formed in the inlet pipe portion 113 which is provided at the center of the compressor case 110 to guide the intake air, and the intake air outlet 112 is the circumferential direction of the compressor case 110 It is formed at the edge and is connected to the outlet pipe part 114.
  • the flow restriction means 130 is composed of an annular ring 131 installed in the inlet pipe portion 113, and the operating means 160 for changing the diameter of the annular ring 131.
  • the annular ring 131 is formed with a cutout 131a which is cut to change a diameter according to the pressurization of the operating means 160, and air flows out of the cutout 131a.
  • the flexible sealing member 132 is inserted / installed so as not to.
  • the actuating means 160 includes an actuating lever 161 provided on both sides of the cutout 131a to protrude out of the annular ring 131, and the actuating lever 161. It consists of a pressurizing means 162 for pressurizing). As the pressing means 162, a cylinder is used, and as another embodiment, a mechanical mechanism 262 such as a link may be used.
  • the inlet pipe 113 is formed with a through portion 113a so that the operation lever 161 protrudes out of the inlet pipe 113.
  • the pressurizing means 162 of the actuating means 160 is installed outside the inlet pipe part 113.
  • the inner surface of the inlet pipe 113 is formed with a concave band groove 113b along the circumferential direction of the inlet pipe 113 so that the annular ring 131 is fitted.
  • the through part 113a is inserted / installed with a stretchable sealing member (not shown) to prevent air from flowing out.
  • the annular ring 331 is formed with a cut portion 331a cut to change the diameter in accordance with the pressing of the operating means 360, the cut portion ( One side of the cutout 331a is formed at one side of the cutout 331a so as to change the diameter of the annular ring 331 while the one side of the 331a is inserted into the other side, and an inclined surface 331b extending from the inner surface of the annular ring 331 is formed.
  • the means 360 has a structure including an actuating lever 361 provided on one side of the inclined surface 331b and a pressurizing means 362 made of a cylinder that pressurizes the actuating lever 361.
  • the cutout 331a is inserted / installed with a sealing member (not shown) that is stretchable so that air does not flow out.
  • the inlet pressure sensor 140 penetrates from the outside of the inlet pipe part 113 to the inside, and the outlet pressure sensor 142 penetrates from the outside of the outlet pipe part 114 to the inside.
  • FIG. 7 and 8 show another embodiment of the flow restricting means of the present invention.
  • the inlet air inlet 411 formed at the center of the compressor case 410 is formed with a thin inlet pipe 413 for guiding the intake air
  • the flow restriction means 430 is the inlet pipe 413.
  • the actuating means 460 may include an actuating lever 461 provided at the cutout portion 413a formed directly on the inlet pipe part 413, and a pressurizing means 462 formed of a cylinder pressurizing the actuating lever 461. Include.
  • the operation lever 461 has a plate shape. The rest of the configuration is the same as the embodiment shown in Figs. 1 and 2, so a detailed description thereof will be omitted.
  • a signal sensed by the inlet pressure sensor 140 and the outlet pressure sensor 142 is transmitted to the control means 150 so that the inlet pressure is greater than the outlet pressure (pressure reversal).
  • Flow backflow) due to the same inlet pressure and outlet pressure by operating the pressing means 162 of the operating means 160 to change the diameter of the annular ring 131 to be small to reduce the flow path area to reduce the amount of intake air Reduce
  • the flow rate can be adjusted so that the range of use of the compressor can be increased in the surge area (high mountain area, etc.) where air is not supercharged, so that the surge margin of the high mountain area can be secured.
  • the inlet flow rate range can be variably used, thereby increasing the efficiency in the low speed region.

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

Abstract

The present invention relates to a compressor for a turbocharger. More specifically, the invention comprises a compressor casing (110) which is provided with an intake-air intake port and an intake-air discharge port, and a compressor wheel (120) which is provided on the shaft of the turbocharger and is placed inside the compressor casing in such a way as to compress the air which has flowed in through the intake-air intake port and to then discharge the same through the intake-air discharge port; and the intake-air intake port is provided with a flow-restriction means (130) for restricting the intake-air volume by adjusting the size of the flow pathway. This arrangement has the advantageous effect that the surge region is enlarged and hence the turbocharger is protected, and the intake-port flow-volume range can be used in a variable fashion such that the efficiency in the low-speed region is increased.

Description

터보차져의 컴프레셔Turbocharger compressor
본 발명은 터보차져의 컴프레셔에 관한 것이다. The present invention relates to a compressor of a turbocharger.
일반적으로 차량에서 대기압보다 높은 압력으로 엔진에 공기를 송압하는 것을 과급이라 하며, 과급에 의하여 배기량이 같은 엔진에서도 다량으로 공기를 충전할 수 있어, 이에 따라 연료의 분사량을 증가시키면 엔진의 출력을 향상시킬 수 있다.In general, it is called supercharging to send air to the engine at a pressure higher than atmospheric pressure in the vehicle, and it is possible to charge a large amount of air even in an engine having the same displacement by the supercharging. You can.
이를 위한 터보차져는 엔진에서 발생하는 배출가스의 속도에너지를 이용하여 엔진의 연소실 내부로 다량의 공기를 공급시키어 엔진 출력을 증대시키는 장치인데 여기서 상기 배출가스를 이용하여 다량의 공기를 연소실로 보낼 때에는 이 배출가스로 터빈을 회전시키어 컴프레셔를 가동하게 되고, 이 컴프레셔에서 발생되는 압축공기를 엔진의 실린더로 공급시키어 실린더에 공급되는 공기량을 증대시킴에 따라 연료량의 증대를 통해 엔진 출력의 증가를 가져오도록 되어 있다.A turbocharger for this purpose is to increase the engine output by supplying a large amount of air into the combustion chamber of the engine by using the velocity energy of the exhaust gas generated from the engine, where the large amount of air is sent to the combustion chamber by using the exhaust gas The exhaust gas rotates the turbine to operate the compressor, and the compressed air generated by the compressor is supplied to the engine cylinder to increase the amount of air supplied to the cylinder, thereby increasing the amount of fuel to increase the engine output. It is.
그런데 종래 터보차져는 컴프레셔의 컴프레셔 케이스가 제작된 이후에는 유량을 조절할 수 없어, 공기가 과급되지 않는 서지영역(고산지대 등)에서 사용이 매우 제한적이다. 따라서 고지(고산지대)의 서지마진을 확보하기 위해 다양한 사양의 컴프레셔 휠을 개발할 필요가 있으며, 서지 발생시 이로 인한 소음 발생이 심하고 컴프레서 휠이 파손되는 문제점이 있고, 컴프레셔의 흡입공기 입구의 크기를 변경하기 위해서는 컴프레셔 케이스를 전체적으로 가공하여 새로운 컴프레셔 케이스를 제작하여야 한다는 문제점이 있었다.By the way, the conventional turbocharger can not control the flow rate after the compressor case of the compressor is manufactured, it is very limited in use in the surge area (high mountain region, etc.) is not air-charged. Therefore, it is necessary to develop compressor wheels of various specifications in order to secure surge margins in the highlands (highlands), and when a surge occurs, there is a problem of high noise generation and damage to the compressor wheels, and the size of the intake air inlet of the compressor is changed. To this end, there is a problem in that a new compressor case is manufactured by processing the compressor case as a whole.
본 발명은 상기한 바와 같은 문제점을 해결하기 위해 이루어진 것으로서, 본 발명의 목적은 컴프레셔 케이스의 흡입공기 입구의 크기를 조절할 수 있도록 하므로써 서지발생 영역에서의 서지현상을 방지하여 터보차져의 손상을 방지하고 별도의 컴프레셔 휠 및 컴프레셔 케이스의 개발이 불필요한 터보차져의 컴프레셔를 제공하는 데 있다.The present invention has been made to solve the above problems, an object of the present invention to prevent the damage of the turbocharger by preventing the surge phenomenon in the surge generation area by adjusting the size of the inlet air inlet of the compressor case It is to provide a compressor of a turbocharger that does not require the development of a separate compressor wheel and a compressor case.
본 발명에 의한 터보차져의 컴프레셔는, 흡입공기 입구와 흡입공기 출구를 구비한 컴프레셔 케이스와, 상기 흡입공기 입구를 통해 유입되는 공기를 압축시켜 흡입공기 출구로 배출시키도록 터보차져 축에 구비되어 상기 컴프레셔 케이스 내에 설치된 컴프레셔 휠을 포함하되, 상기 흡입공기 입구에는 유로 크기를 조절하여 흡입공기량을 제한하는 유량제한수단이 구비되는 것을 특징으로 한다.The compressor of the turbocharger according to the present invention includes a compressor case having an intake air inlet and an intake air outlet, and a turbocharger shaft provided to compress the air introduced through the intake air inlet and discharge it to the intake air outlet. It includes a compressor wheel installed in the compressor case, characterized in that the inlet air inlet is provided with a flow rate limiting means for restricting the amount of intake air by adjusting the flow path size.
상기 흡입공기 입구와 흡입공기 출구에는 흡입공기의 압력을 측정하는 압력센서가 구비되고, 상기 압력센서는 상기 유량제한수단을 작동시키는 작동수단을 제어하는 제어수단에 전기적으로 연결된다.The suction air inlet and the suction air outlet are provided with a pressure sensor for measuring the pressure of the suction air, the pressure sensor is electrically connected to a control means for controlling the operation means for operating the flow restriction means.
상기 흡입공기 입구에는 흡입공기를 안내하는 입구관부가 형성되고, 상기 유량제한수단은 상기 입구관부에 설치된 환형링과, 상기 환형링의 직경을 변화시키는 작동수단으로 이루어진다.The intake air inlet is formed with an inlet pipe portion for guiding the intake air, and the flow rate limiting means comprises an annular ring provided in the inlet pipe portion, and an operating means for changing the diameter of the annular ring.
상기 흡입공기 입구에는 흡입공기를 안내하는 입구관부가 형성되고, 상기 유량제한수단은 상기 입구관부에 직접 형성된 절취부와, 상기 절취부의 폭을 변화시켜 입구관부의 직경을 변화시키는 작동수단을 포함하는 구조로 이루어질 수도 있다.The intake air inlet is formed with an inlet pipe portion for guiding the intake air, and the flow rate limiting means includes a cutout portion formed directly on the inlet pipe portion, and an operation means for changing the diameter of the inlet pipe portion by changing the width of the cutout portion. It may be made of a structure.
본 발명에 의한 터보차져의 컴프레셔에 의하면, 서지영역을 확대하여 터보차져를 보호하고, 입구 유량 범위를 가변적으로 이용할 수 있어 저속영역에서의 효율을 증대하는 효과가 있다.According to the compressor of the turbocharger according to the present invention, the surge region can be expanded to protect the turbocharger, and the inlet flow rate range can be variably used, thereby increasing the efficiency in the low speed region.
도1은 본 발명이 적용된 터보차져 전체를 나타내는 구성도,1 is a configuration diagram showing the entire turbocharger to which the present invention is applied;
도2는 본 발명에 의한 터보차져의 컴프레셔를 나타내는 사시도,2 is a perspective view showing a compressor of a turbocharger according to the present invention;
도3은 도2의 환형링에 작동수단이 결합된 구성도,Figure 3 is a configuration diagram coupled the operating means to the annular ring of Figure 2,
도4는 본 발명에 의한 터보차져의 컴프레셔에서 가압수단의 다른 실시예를 나타낸 구성도,4 is a configuration diagram showing another embodiment of the pressing means in the compressor of the turbocharger according to the present invention;
도5는 도1의 입구관부에서 환형링 및 작동레버가 설치되는 부분을 나타내는 단면도,5 is a cross-sectional view showing a portion in which the annular ring and the operating lever are installed in the inlet pipe of FIG.
도6은 본 발명에 의한 터보차져의 컴프레셔에서 환형링의 다른 실시예를 나타내는 구성도,6 is a configuration diagram showing another embodiment of the annular ring in the compressor of the turbocharger according to the present invention;
도7은 본 발명의 유량제한수단의 다른 실시예를 나타내는 단면도,7 is a sectional view showing another embodiment of the flow restricting means of the present invention;
도8은 도7의 사시도이다.8 is a perspective view of FIG.
이하, 본 발명의 실시예에 대해 첨부도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도1은 본 발명이 적용된 터보차져 전체를 나타내는 구성도이고, 도2는 본 발명에 의한 터보차져의 컴프레셔를 나타내는 사시도이다. 도시한 바와 같이, 터보차져는 센터 하우징(10)의 내부에는 베어링(12)을 매개로 터보차져 축(14)이 설치되고, 상기 터보차져 축(14)의 일측에는 터빈(20)이 구비되며, 상기 터보차져 축(14)의 타측에는 컴프레셔(100)가 구비된 구조이다.1 is a configuration diagram showing the entire turbocharger to which the present invention is applied, and FIG. 2 is a perspective view showing a compressor of the turbocharger according to the present invention. As illustrated, the turbocharger is provided with a turbocharger shaft 14 through a bearing 12 inside the center housing 10, and a turbine 20 is provided at one side of the turbocharger shaft 14. On the other side of the turbocharger shaft 14, a compressor 100 is provided.
상기 센터 하우징(10)에는 상기 베어링(12)에 오일을 공급하는 오일공급포트(16)가 형성되는 한편 상기 베어링(12)에서 오일이 귀환되는 오일귀환포트(18)가 형성된다.The center housing 10 has an oil supply port 16 for supplying oil to the bearing 12, and an oil return port 18 for returning oil from the bearing 12.
상기 터빈(20)은 상기 터보차져 축(14)의 일측에 설치된 터빈 휠(22)과, 상기 터빈 휠(22)을 감싸는 터빈 케이스(24)를 구비한다. 상기 터빈 케이스(24)에는 배기가스가 유입하는 배기가스 입구(26)가 형성되는 한편 배기가스가 배출되는 배기가스 출구(28)가 형성된다.The turbine 20 includes a turbine wheel 22 provided on one side of the turbocharger shaft 14 and a turbine case 24 surrounding the turbine wheel 22. The turbine case 24 has an exhaust gas inlet 26 through which the exhaust gas flows, and an exhaust gas outlet 28 through which the exhaust gas is discharged.
상기 컴프레셔(100)는 흡입공기 입구(111)와 흡입공기 출구(112)를 구비한 컴프레셔 케이스(110)와, 상기 흡입공기 입구(111)를 통해 유입되는 공기를 압축시켜 흡입공기 출구(112)로 배출시키도록 터보차져 축(14)의 타측에 구비되어 상기 컴프레셔 케이스(110) 내에 설치된 컴프레셔 휠(120)을 포함한다. 그리고, 상기 흡입공기 입구(111)에는 유로 크기를 조절하여 흡입공기량을 제한하는 유량제한수단(130)이 구비된다. 또한, 상기 흡입공기 입구(111)와 흡입공기 출구(112)에는 흡입공기의 입출구 압력을 측정하는 입구압력센서(140) 및 출구압력센서(142)가 각각 구비되며, 상기 입구압력센서(140) 및 출구압력센서(142)는 후술하는 작동수단을 제어하는 제어수단(150)에 전기적으로 연결된다.The compressor 100 compresses the air flowing through the compressor case 110 having the intake air inlet 111 and the intake air outlet 112 and the intake air inlet 111 to intake air outlet 112. The compressor wheel 120 is provided on the other side of the turbocharger shaft 14 to be discharged to the compressor case 110. In addition, the intake air inlet 111 is provided with a flow rate limiting unit 130 for restricting the amount of intake air by adjusting the flow path size. In addition, the intake air inlet 111 and the intake air outlet 112 are provided with an inlet pressure sensor 140 and an outlet pressure sensor 142 for measuring inlet and outlet pressure of the intake air, respectively, and the inlet pressure sensor 140. And the outlet pressure sensor 142 is electrically connected to the control means 150 for controlling the operation means to be described later.
상기 흡입공기 입구(111)는 상기 컴프레셔 케이스(110)의 중앙에 구비되어 흡입공기를 안내하는 입구관부(113)에 형성되어 있으며, 상기 흡입공기 출구(112)는 컴프레셔 케이스(110)의 원주방향 가장자리에 형성되어 출구관부(114)에 이어져 있다. The intake air inlet 111 is formed in the inlet pipe portion 113 which is provided at the center of the compressor case 110 to guide the intake air, and the intake air outlet 112 is the circumferential direction of the compressor case 110 It is formed at the edge and is connected to the outlet pipe part 114.
상기 유량제한수단(130)은 상기 입구관부(113)의 내부에 설치된 환형링(131)과, 상기 환형링(131)의 직경을 변화시키는 작동수단(160)으로 이루어진다.The flow restriction means 130 is composed of an annular ring 131 installed in the inlet pipe portion 113, and the operating means 160 for changing the diameter of the annular ring 131.
도3에 도시한 바와 같이, 상기 환형링(131)에는 상기 작동수단(160)의 가압에 따라 직경이 변하도록 절단된 절취부(131a)가 형성되며, 상기 절취부(131a)에는 공기가 유출하지 않도록 신축가능한 밀봉부재(132)가 삽입/설치된다.As shown in FIG. 3, the annular ring 131 is formed with a cutout 131a which is cut to change a diameter according to the pressurization of the operating means 160, and air flows out of the cutout 131a. The flexible sealing member 132 is inserted / installed so as not to.
상기 작동수단(160)은 도2 및 도3에 도시한 바와 같이 상기 절취부(131a)의 양측에 환형링(131)의 외부로 돌출되게 구비된 작동레버(161)와, 상기 작동레버(161)를 가압하는 가압수단(162)으로 이루어진다. 상기 가압수단(162)은 실린더가 사용되며, 다른 실시예로서 링크 등의 기계적 메카니즘(262 : 도4 참조)이 사용될 수도 있다.As shown in FIGS. 2 and 3, the actuating means 160 includes an actuating lever 161 provided on both sides of the cutout 131a to protrude out of the annular ring 131, and the actuating lever 161. It consists of a pressurizing means 162 for pressurizing). As the pressing means 162, a cylinder is used, and as another embodiment, a mechanical mechanism 262 such as a link may be used.
도5에 도시한 바와 같이, 상기 입구관부(113)에는 상기 작동레버(161)가 입구관부(113)의 외부로 돌출하여 설치되도록 관통부(113a)가 형성된다. 상기 작동수단(160)의 가압수단(162)은 상기 입구관부(113)의 외부에 설치된다. 또한 상기 입구관부(113)의 내면에는 상기 환형링(131)이 끼워지도록 입구관부(113)의 원주방향을 따라 요입띠홈(113b)이 형성된다. 상기 관통부(113a)에는 공기가 유출하지 않도록 신축가능한 밀봉부재(도시 안됨)가 삽입/설치된다.As shown in Figure 5, the inlet pipe 113 is formed with a through portion 113a so that the operation lever 161 protrudes out of the inlet pipe 113. The pressurizing means 162 of the actuating means 160 is installed outside the inlet pipe part 113. In addition, the inner surface of the inlet pipe 113 is formed with a concave band groove 113b along the circumferential direction of the inlet pipe 113 so that the annular ring 131 is fitted. The through part 113a is inserted / installed with a stretchable sealing member (not shown) to prevent air from flowing out.
한편 도6에 도시한 바와 같이 환형링의 다른 실시예로서, 상기 환형링(331)에는 작동수단(360)의 가압에 따라 직경이 변하도록 절단된 절취부(331a)가 형성되며, 절취부(331a)의 일측이 타측 내부로 삽입되면서 환형링(331)의 직경이 변하도록 상기 절취부(331a)의 일측에는 환형링(331)의 내면에서 외면에 이르는 경사면(331b)이 형성되며, 상기 작동수단(360)은 상기 경사면(331b)의 일측에 구비된 작동레버(361)와, 상기 작동레버(361)를 가압하는 실린더로 된 가압수단(362)을 포함하는 구조이다. 상기 절취부(331a)에는 공기가 유출하지 않도록 신축가능한 도시하지 않은 밀봉부재가 삽입/설치된다.On the other hand, as shown in Figure 6 as another embodiment of the annular ring, the annular ring 331 is formed with a cut portion 331a cut to change the diameter in accordance with the pressing of the operating means 360, the cut portion ( One side of the cutout 331a is formed at one side of the cutout 331a so as to change the diameter of the annular ring 331 while the one side of the 331a is inserted into the other side, and an inclined surface 331b extending from the inner surface of the annular ring 331 is formed. The means 360 has a structure including an actuating lever 361 provided on one side of the inclined surface 331b and a pressurizing means 362 made of a cylinder that pressurizes the actuating lever 361. The cutout 331a is inserted / installed with a sealing member (not shown) that is stretchable so that air does not flow out.
상기 입구압력센서(140)는 상기 입구관부(113)의 외부에서 내부로 관통하여 설치되며, 상기 출구압력센서(142)는 상기 출구관부(114)의 외부에서 내부로 관통하여 설치된다.The inlet pressure sensor 140 penetrates from the outside of the inlet pipe part 113 to the inside, and the outlet pressure sensor 142 penetrates from the outside of the outlet pipe part 114 to the inside.
도7 및 도8은 본 발명의 유량제한수단의 다른 실시예를 나타낸다. 도시한 바와 같이 상기 컴프레셔 케이스(410)의 중앙에 형성된 흡입공기 입구(411)에는 흡입공기를 안내하는 얇은 두께의 입구관부(413)가 형성되고, 유량제한수단(430)은 상기 입구관부(413)에 직접 형성된 절취부(413a)와, 상기 절취부(413a)의 폭을 변화시켜 입구관부(413)의 직경을 변화시키는 작동수단(460)을 포함한다.7 and 8 show another embodiment of the flow restricting means of the present invention. As shown, the inlet air inlet 411 formed at the center of the compressor case 410 is formed with a thin inlet pipe 413 for guiding the intake air, and the flow restriction means 430 is the inlet pipe 413. Cutout portion 413a directly formed on the circumference), and an actuating means 460 for changing the diameter of the inlet pipe portion 413 by changing the width of the cutout portion 413a.
상기 작동수단(460)은, 상기 입구관부(413)에 직접 형성된 절취부(413a)에 구비된 작동레버(461)와, 상기 작동레버(461)를 가압하는 실린더로 된 가압수단(462)을 포함한다. 상기 작동레버(461)는 판 형태로 되어 있다. 나머지 구성은 도1 및 도2에 도시된 실시예와 동일하므로 자세한 설명은 생략한다. The actuating means 460 may include an actuating lever 461 provided at the cutout portion 413a formed directly on the inlet pipe part 413, and a pressurizing means 462 formed of a cylinder pressurizing the actuating lever 461. Include. The operation lever 461 has a plate shape. The rest of the configuration is the same as the embodiment shown in Figs. 1 and 2, so a detailed description thereof will be omitted.
이와 같이 구성된 본 발명에 의한 터보차져의 컴프레셔에서, 입구압력센서(140)와 출구압력센서(142)에서 감지된 신호가 제어수단(150)에 전달되어 입구압력이 출구압력보다 크거나(압력 역전으로 인한 유동역류) 입구압력과 출구압력이 동일하게 되면, 상기 작동수단(160)의 가압수단(162)을 작동시켜 환형링(131)의 직경을 작게 변화시켜 유로면적을 줄여 흡입공기의 양을 줄인다.In the compressor of the turbocharger according to the present invention configured as described above, a signal sensed by the inlet pressure sensor 140 and the outlet pressure sensor 142 is transmitted to the control means 150 so that the inlet pressure is greater than the outlet pressure (pressure reversal). Flow backflow) due to the same inlet pressure and outlet pressure, by operating the pressing means 162 of the operating means 160 to change the diameter of the annular ring 131 to be small to reduce the flow path area to reduce the amount of intake air Reduce
따라서, 컴프레셔의 컴프레셔 케이스가 제작된 이후에도 유량을 조절할 수 있어 공기가 과급되지 않는 서지영역(고산지대 등)에서 컴프레셔의 사용범위를 늘릴 수 있으므로, 고지(고산지대)의 서지마진을 확보하기 위해 다양한 사양의 컴프레셔 휠을 개발할 필요가 없으며, 컴프레셔의 흡입공기입구의 크기를 변경하기 위해 컴프레셔 케이스를 전체적으로 가공하여 새로운 컴프레셔 케이스를 제작할 필요가 없다.Therefore, even after the compressor case of the compressor is manufactured, the flow rate can be adjusted so that the range of use of the compressor can be increased in the surge area (high mountain area, etc.) where air is not supercharged, so that the surge margin of the high mountain area can be secured. There is no need to develop a compressor wheel with specifications, and there is no need to make a new compressor case by machining the compressor case as a whole to change the size of the intake air inlet of the compressor.
그리고, 서지영역을 확대하여 터보차져를 보호하고, 입구 유량 범위를 가변적으로 이용할 수 있어 저속영역에서의 효율을 증대하는 효과가 있다.In addition, since the surge region is enlarged to protect the turbocharger, the inlet flow rate range can be variably used, thereby increasing the efficiency in the low speed region.

Claims (10)

  1. 흡입공기 입구와 흡입공기 출구를 구비한 컴프레셔 케이스와, 상기 흡입공기 입구를 통해 유입되는 공기를 압축시켜 흡입공기 출구로 배출시키도록 터보차져 축에 구비되어 상기 컴프레셔 케이스 내에 설치된 컴프레셔 휠을 포함하되,A compressor case having an intake air inlet and an intake air outlet, and a compressor wheel provided in the turbocharger shaft to compress the air introduced through the intake air inlet and discharge it to the intake air outlet,
    상기 흡입공기 입구에는 유로 크기를 조절하여 흡입공기량을 제한하는 유량제한수단이 구비되는 것을 특징으로 하는 터보차져의 컴프레셔.The compressor of the turbocharger, characterized in that the flow rate limiting means for restricting the amount of intake air by adjusting the size of the flow path at the inlet air.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 흡입공기 입구에는 흡입공기를 안내하는 입구관부가 형성되고, The suction air inlet is formed with an inlet pipe portion for guiding the suction air,
    상기 유량제한수단은, 상기 입구관부에 설치된 환형링과, 상기 환형링의 직경을 변화시키는 작동수단으로 이루어지는 것을 특징으로 하는 터보차져의 컴프레셔.The flow restrictor is a compressor of a turbocharger, characterized in that it comprises an annular ring provided in the inlet pipe portion and an actuating means for changing the diameter of the annular ring.
  3. 청구항 2에 있어서,The method according to claim 2,
    상기 환형링에는 상기 작동수단의 가압에 따라 직경이 변하도록 절단된 절취부가 형성되는 것을 특징으로 하는 터보차져의 컴프레셔.The annular ring is a compressor of the turbocharger, characterized in that the cut portion is formed so that the diameter changes in accordance with the pressing of the operating means.
  4. 청구항 3에 있어서, The method according to claim 3,
    상기 작동수단은, 상기 절취부의 양측에 구비된 작동레버와, 상기 작동레버를 가압하는 가압수단을 포함하는 것을 특징으로 하는 터보차져의 컴프레셔.The actuating means, the compressor of the turbocharger, characterized in that it comprises an actuating lever provided on both sides of the cutout, and a pressurizing means for pressurizing the actuating lever.
  5. 청구항 3에 있어서,The method according to claim 3,
    상기 작동수단의 가압에 따라 상기 절취부의 일측이 타측 내부로 삽입되면서 환형링의 직경이 변하도록 상기 절취부의 일측에는 환형링의 내면에서 외면에 이르는 경사면이 형성되며, One side of the cutout is inserted into the other side according to the pressing of the operating means, so that one side of the cutout has an inclined surface extending from the inner surface to the outer surface of the cutout to change the diameter of the annular ring.
    상기 작동수단은 상기 경사면의 일측에 구비된 작동레버와, 상기 작동레버를 가압하는 가압수단을 포함하는 것을 특징으로 하는 터보차져의 컴프레셔.The actuating means is a compressor of a turbocharger comprising an actuating lever provided on one side of the inclined surface and a pressurizing means for pressurizing the actuating lever.
  6. 청구항 2에 있어서,The method according to claim 2,
    상기 입구관부에는 상기 작동레버가 상기 입구관부의 외부로 돌출하여 설치되도록 관통부가 형성되고, The inlet pipe portion is formed with a through portion so that the operation lever is installed to protrude out of the inlet pipe portion,
    상기 작동수단의 가압수단은 상기 입구관부의 외부에 설치되는 것을 특징으로 하는 터보차져의 컴프레셔.Compressor of the turbocharger, characterized in that the pressing means of the operating means is installed outside the inlet pipe portion.
  7. 청구항 2에 있어서,The method according to claim 2,
    상기 입구관부의 내면에는 상기 환형링이 끼워지도록 입구관부의 원주방향을 따라 요입띠홈이 형성되는 것을 특징으로 하는 터보차져의 컴프레셔.Compressor of the turbocharger, characterized in that the inlet belt groove is formed along the circumferential direction of the inlet pipe portion so that the annular ring is fitted to the inner surface of the inlet pipe portion.
  8. 청구항 1에 있어서,The method according to claim 1,
    상기 흡입공기 입구에는 흡입공기를 안내하는 입구관부가 형성되고, The suction air inlet is formed with an inlet pipe portion for guiding the suction air,
    상기 유량제한수단은, 상기 입구관부에 직접 형성된 절취부와, 상기 절취부의 폭을 변화시켜 입구관부의 직경을 변화시키는 작동수단을 포함하는 것을 특징으로 하는 터보차져의 컴프레셔.The flow restricting means includes a cutout portion formed directly on the inlet pipe portion, and an actuating means for changing the diameter of the inlet pipe portion by changing the width of the cutout portion.
  9. 청구항 8에 있어서, The method according to claim 8,
    상기 작동수단은, 상기 입구관부에 직접 형성된 절취부에 구비된 작동레버와, 상기 작동레버를 가압하는 가압수단을 포함하는 것을 특징으로 하는 터보차져의 컴프레셔.The actuating means, the compressor of the turbocharger comprising an actuating lever provided in the cutout portion formed directly on the inlet pipe portion, and a pressurizing means for pressurizing the actuating lever.
  10. 청구항 2 또는 청구항 8에 있어서,The method according to claim 2 or 8,
    상기 흡입공기 입구와 흡입공기 출구에는 흡입공기의 압력을 측정하는 압력센서가 설치되고, 상기 압력센서는 상기 작동수단을 제어하는 제어수단에 전기적으로 연결되는 것을 특징으로 하는 터보차져의 컴프레셔.And a pressure sensor is installed at the intake air inlet and the intake air outlet to measure the pressure of the intake air, and the pressure sensor is electrically connected to a control means for controlling the operation means.
PCT/KR2009/007488 2009-12-14 2009-12-15 Compressor for a turbocharger WO2011074715A1 (en)

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KR102506982B1 (en) * 2022-10-06 2023-03-07 주식회사 신성터보마스터 Inflow redemption system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870000017B1 (en) * 1983-09-12 1987-01-28 캐리어 코오포레이숀 Variable width diffuser
US5669756A (en) * 1996-06-07 1997-09-23 Carrier Corporation Recirculating diffuser
JPH09310699A (en) * 1996-05-21 1997-12-02 Ishikawajima Harima Heavy Ind Co Ltd Centrifugal compressor
JPH1182036A (en) * 1997-09-11 1999-03-26 Hitachi Ltd Exhaust turbo-charger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870000017B1 (en) * 1983-09-12 1987-01-28 캐리어 코오포레이숀 Variable width diffuser
JPH09310699A (en) * 1996-05-21 1997-12-02 Ishikawajima Harima Heavy Ind Co Ltd Centrifugal compressor
US5669756A (en) * 1996-06-07 1997-09-23 Carrier Corporation Recirculating diffuser
JPH1182036A (en) * 1997-09-11 1999-03-26 Hitachi Ltd Exhaust turbo-charger

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