KR20030018591A - A turbo charger protecting system in vehicle - Google Patents

A turbo charger protecting system in vehicle Download PDF

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Publication number
KR20030018591A
KR20030018591A KR1020010052791A KR20010052791A KR20030018591A KR 20030018591 A KR20030018591 A KR 20030018591A KR 1020010052791 A KR1020010052791 A KR 1020010052791A KR 20010052791 A KR20010052791 A KR 20010052791A KR 20030018591 A KR20030018591 A KR 20030018591A
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KR
South Korea
Prior art keywords
oil
supercharger
vehicle
protection system
turbo charger
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KR1020010052791A
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Korean (ko)
Inventor
서경일
Original Assignee
현대자동차주식회사
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Priority to KR1020010052791A priority Critical patent/KR20030018591A/en
Publication of KR20030018591A publication Critical patent/KR20030018591A/en

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Classifications

    • 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
    • F02B39/14—Lubrication of pumps; Safety measures therefor
    • 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
    • F02B39/16—Other safety measures for, or other control of, pumps
    • 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

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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 protecting system is provided to prevent a turbo charger from being damaged by supplying preheated engine oil into the turbo charger in a cold season. CONSTITUTION: A turbo charger protecting system includes a main feeding pipe(40) and a returning pipe(50) and a heating device. The main feeding pipe(40) feeds lubricant oil through an oil pump(30) having a driving gear(30b). The oil pump(30) pumps oil of an oil fan(30a) into a turbo charger(10), in which compresses air introduced through an air inlet line. Oil supplied through the oil pump(30) is returned into the oil fan(30a) through the returning pipe(50). The heating device heats oil of the main feeding pipe(40). Then heated oil is supplied into the turbo charger(10). The heating device includes a regulator(70), an accumulator(80) and a heater(100).

Description

차량의 과급기 보호시스템{A turbo charger protecting system in vehicle}A turbo charger protecting system in vehicle

본 발명은 차량의 과급기 보호시스템에 관한 것으로, 보다 상세하게는 외기 온도가 저온일 때 엔진오일을 가열하여 공급할 수 있도록 된 차량의 과급기 보호시스템에 관한 것이다.The present invention relates to a supercharger protection system for a vehicle, and more particularly, to a supercharger protection system for a vehicle that is capable of heating and supplying engine oil when the outside air temperature is low.

일반적으로 과급기는 디젤 엔진 차량에서 엔진에 장착된 배기인테이크에 연결된 배기라인을 통해 배출되는 배기가스에 의해 회전되는 터빈과 함께 회전되는 컴프레셔을 통해 흡기라인으로 유입되는 외부공기를 압축하여 엔진으로 공급하는 즉, 배기가스의 압력을 이용해 엔진으로 유입되는 외부공기를 압축하여 엔진 성능을 향상시키는 것이다.Generally, the supercharger compresses and supplies the external air introduced into the intake line to the engine through a compressor that is rotated together with a turbine that is rotated by an exhaust gas discharged through an exhaust line connected to an exhaust intake mounted on the engine in a diesel engine vehicle. In addition, by using the pressure of the exhaust gas to compress the external air flowing into the engine to improve the engine performance.

이러한 과급기(10)를 이용한 차량은 도 1에 도시된 바와 같이 연소 후 배기가스를 배출하는 배기인테이크(EP)와 대향되도록 엔진(E)에 장착된 흡기인테이크(IP)로 이어지면서 그 사이에 인터쿨러(50)가 구비된 연결라인(60)과 외부 공기를 유입하는 유입라인(A)을 연결하도록 이루어진다.The vehicle using the supercharger 10 is connected to the intake intake IP mounted on the engine E so as to face the exhaust intake EP for discharging exhaust gas after combustion, as shown in FIG. Connection line 60 is provided with 50 is made to connect the inlet line (A) for introducing the outside air.

이에 따라, 배기라인(B)으로 배출되는 배기가스에 의해 회전되는 터빈에 의해 유입라인(A)을 통해 유입되는 공기를 압축하는 컴프레셔로 이루어진 과급기(10)를 통해 유입된 공기를 인터쿨러(20)를 거치면서 속도에너지를 압력에너지로 변환시켜 엔진(E)의 실린더로 공급하여 체적효율을 향상하고 이에 따라 엔진(E)의 출력을 증가시키게 된다.Accordingly, the intercooler 20 receives the air introduced through the supercharger 10 made of a compressor that compresses the air introduced through the inflow line A by the turbine rotated by the exhaust gas discharged into the exhaust line B. By passing through the speed energy is converted into pressure energy to supply to the cylinder of the engine (E) to improve the volumetric efficiency and thereby increase the output of the engine (E).

그러나, 이러한 과급기(10)는 외기 온도가 낮은 동절기에 엔진의 시동을 걸고 차량을 가속하게 되면 과급기(10)로 공급되는 엔진오일의 온도가 낮아 점도가 상대적으로 크게 되어 과급기로 공급이 되지 않은 상태이므로 터빈이나 컴프레셔에 구비된 베어링부의 고착이나 손상을 가져오는 문제가 있게 된다.However, when the supercharger 10 starts the engine in the winter when the outside air temperature is low and accelerates the vehicle, the temperature of the engine oil supplied to the supercharger 10 is low so that the viscosity is relatively large and is not supplied to the supercharger. Therefore, there is a problem in that the bearing portion provided in the turbine or the compressor is stuck or damaged.

이에 따라, 통상 과급기를 이용한 차량은 동절기에 반드시 엔진을 공회전시켜 엔진오일의 온도를 충분히 올리거나 차량을 급 가속하지 말아야하지만, 대부분의 운전자에게 과급기(10)의 손상방지를 위해 엔진오일의 온도가 상승 될 때까지 공 회전시킨다거나 차량을 급 가속하지 않아야 되지만 현실적으로 이를 지키기가 어려워 과급기의 수명이 짧아지는 문제가 있게 된다.Accordingly, a vehicle using a turbocharger must not idle the engine sufficiently in winter to sufficiently raise the temperature of the engine oil or rapidly accelerate the vehicle. However, the temperature of the engine oil is increased for most drivers to prevent damage to the turbocharger 10. It should not be idling or rapidly accelerating the vehicle until it is raised, but in reality it is difficult to keep it, which causes a problem of shortening the life of the supercharger.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 동절기에 미리 예열시킨 엔진오일을 과급기로 공급하여 차가운 엔진오일의 공급 불량에 따른 과급기의 손상을 방지함에 그 목적이 있다.Accordingly, the present invention has been in view of the above-described problems, and has an object to prevent damage to the supercharger due to a poor supply of cold engine oil by supplying a pre-heated engine oil to a supercharger in winter.

상기와 같은 목적을 달성하기 위한 본 발명은, 배기가스의 흐름을 이용해 유입라인을 통해 유입되는 공기를 압축시키는 과급기로 오일팬의 오일을 펌핑하는 구동기어로 이루어진 오일펌프를 통해 윤활 오일을 공급하는 주공급관로와, 상기 오일펌프를 통해 공급된 오일을 오일팬으로 리턴시키는 복귀관로 및 상기 주공급관로의 오일을 바이패스시켜 일정온도로 가열한 후 과급기로 공급하는 가열수단으로 이루어진 것을 특징으로 한다.The present invention for achieving the above object, by supplying the lubricating oil through the oil pump consisting of a drive gear pumping the oil of the oil pan to the supercharger for compressing the air flowing through the inlet line using the flow of exhaust gas. The main supply line, a return line for returning the oil supplied through the oil pump to the oil pan and the heating means for bypassing the oil in the main supply line to be heated to a predetermined temperature and then supplied to the supercharger .

도 1은 일반적인 과급기를 이용한 차량의 구성도1 is a block diagram of a vehicle using a general turbocharger

도 2는 본 발명에 따른 과급기 보호시스템의 구성도2 is a block diagram of a supercharger protection system according to the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 과급기20 : 인터쿨러10: supercharger 20: intercooler

30 : 오일펌프30a : 오일팬30: oil pump 30a: oil pan

30a' : 센서30b : 구동기어30a ': sensor 30b: drive gear

40 : 주공급관로40: main supply line

40a,40b,70a,90a,100a : 밸브40a, 40b, 70a, 90a, 100a: valve

50 : 복귀관로60 : 바이패스관로50: return line 60: bypass line

70 : 레귤레이터80 : 어큐뮬레이터70: regulator 80: accumulator

90 : 서브공급관로100 : 히터90: sub supply pipe 100: heater

110 : 키스위치120 : 콘트롤러110: key switch 120: controller

A : 유입라인B : 배기라인A: Inlet line B: Exhaust line

E : 엔진EP : 배기인테이크E: Engine EP: Exhaust Intake

IP : 흡기인테이크IP: Intake Intake

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 과급기 보호시스템의 구성도를 도시한 것인바, 본 발명은 배기가스의 흐름을 이용해 유입라인을 통해 유입되는 공기를 압축시키는 과급기(10)로 오일팬(30a)의 오일을 펌핑하는 구동기어(30b)로 이루어진 오일펌프(30)를 통해 윤활 오일을 공급하는 주공급관로(40)와, 상기 오일펌프(30)를 통해 공급된 오일을 오일팬(30a)으로 리턴시키는 복귀관로(50) 및 상기 주공급관로(40)의 오일을 바이패스(Bypass)시켜 일정온도로 가열한 후 과급기(10)로 공급하는 가열수단으로 이루어진다.Figure 2 shows the configuration of the supercharger protection system according to the present invention, the present invention is the oil of the oil pan (30a) to the supercharger 10 for compressing the air flowing through the inlet line using the flow of exhaust gas The main supply line 40 for supplying lubricating oil through the oil pump 30 made of a drive gear 30b for pumping the oil and returning the oil supplied through the oil pump 30 to the oil pan 30a The return pipe 50 and the oil of the main supply pipe 40 is bypassed (Bypass) is made of a heating means for supplying to the supercharger 10 after heating to a predetermined temperature.

여기서, 상기 가열수단은 상기 주공급관로(40)에서 분기된 오일을 바이패스시키는 바이패스관로(60)에 구비되어 압력을 조절하는 레귤레이터(70)와, 이 레귤레이터(70)를 통해 유입된 오일을 충진하는 어큐뮬레이터(80) 및 이 어큐뮬레이터(80)에서 과급기(10)로 연결된 서브공급관로(90)상에 구비되어 공급되는 오일을 콘트롤러(120)의 제어신호에 따라 가열하는 히터(100)로 이루어진다.Here, the heating means is provided in the bypass pipe line 60 for bypassing the oil branched from the main supply pipe 40, a regulator 70 for adjusting the pressure, and the oil introduced through the regulator 70 Accumulator 80 for filling the gas and the heater 100 is provided on the sub supply pipe (90) connected from the accumulator 80 to the supercharger (10) is heated in accordance with the control signal of the controller 120 Is done.

이때, 상기 콘트롤러(120)는 엔진 키스위치(110)의 ACC위치에 따라 온(On)되는 글로우플러그(Glow Plug)를 작동시키면서 동시에 히터(100)에 전원을 통전시키는 한편, 상기 글로우플러그가 오프된 후 오일펌프(30)의 오일팬(30a)내 온도를 측정하는 센서(30a')의 측정 온도 값에 따라 오일을 가열하는 히터(100)의 작동여부를 판단하게 된다.At this time, the controller 120 energizes the heater 100 while simultaneously operating a glow plug that is turned on according to the ACC position of the engine key switch 110, while the glow plug is turned off. After that, it is determined whether the heater 100 for heating the oil is operated according to the measured temperature value of the sensor 30a 'measuring the temperature in the oil pan 30a of the oil pump 30.

한편, 상기 주공급관로(40)와 바이패스관로(60) 및 서브공급관로(90)에는 각각 그 흐름 방향의 역 방향 흐름을 차단하도록 체크밸브(40b,70a,100a)가 구비되는 한편, 상기 주공급관로(40)와 서브공급관로(90)에는 오일의 온도에 따라 오일을 과급기(10)에 선택적으로 공급하도록 각각 솔레노이드밸브(40a,90a)가 구비되어진다.Meanwhile, check valves 40b, 70a, and 100a are provided in the main supply line 40, the bypass line 60, and the sub supply line 90 to block reverse flow in the flow direction, respectively. The main supply line 40 and the sub supply line 90 are provided with solenoid valves 40a and 90a to selectively supply oil to the supercharger 10 according to the temperature of the oil.

이하 본 발명의 작동을 상세히 설명한다.Hereinafter, the operation of the present invention will be described in detail.

먼저, 엔진이 운전 중 즉, 과급기(10)가 충분히 가열된 상태에서는 도 2에 A방향으로 도시된 바와 같이 오일펌프(30)를 통해 펌핑된 오일이 콘트롤러(120)에 의해 개방된 솔레노이드밸브(40a)를 통해 주공급관로(40)에 의해 과급기(10)로 공급되면서 동시에 바이패스관로(60)를 통해 압력 레귤레이터(70)를 통해 일정 압력으로 어큐뮬레이터(80)로 유입되어진다.First, when the engine is in operation, that is, the supercharger 10 is sufficiently heated, as shown in the direction A in FIG. 2, the oil pumped through the oil pump 30 is opened by the controller 120. It is supplied to the supercharger 10 by the main supply line 40 through 40a) and at the same time is introduced into the accumulator 80 at a predetermined pressure through the pressure regulator 70 through the bypass line 60.

이때, 상기 과급기(10)로 유입되었던 오일은 다시 복귀관로(50)를 통해 오일펌프(30)의 오일팬(30a)으로 복귀되는 한편, 상기 레귤레이터(70)는 어큐뮬레이터(80)가 일정압력으로 되면 닫혀 더 이상의 오일을 유입시키지 않게 된다.At this time, the oil introduced into the supercharger 10 is returned to the oil pan 30a of the oil pump 30 through the return pipe 50 again, while the regulator 70 has the accumulator 80 at a constant pressure. It will close and not allow any more oil to flow in.

한편, 엔진의 시동을 거는 경우에는 시동키(110)가 ACC위치에 오면 이를 감지한 콘트롤러(120)가 글로우플러그를 온(On)시키면서 히터(100)를 온시키게 되고, 이어 시동키(110)가 ON위치에 오면 엔진의 시동과 함께 글로우플러그가 오프되고 콘트롤러(120)는 도 2에 B방향으로 도시된 바와 같이 어큐뮬레이터(80)에 저장된 오일을 과급기로 공급하도록 서브공급관로(90)에 구비된 솔레노이드밸브(90a)를 열고 동시에 히터(100)를 온 시키게 된다.On the other hand, when the engine is started, when the starter key 110 comes to the ACC position, the controller 120 which detects this turns on the heater 100 while turning on the glow plug, followed by the starter key 110. Is in the ON position, the glow plug is turned off with the start of the engine and the controller 120 is provided in the sub supply line 90 to supply oil stored in the accumulator 80 to the supercharger as shown in the direction B in FIG. 2. Open the solenoid valve 90a and at the same time turn on the heater 100.

이어, 상기 콘트롤러(120)가 과급기(10)를 지나 복귀관로(50)를 통해 오일펌프(230)의 오일팬(30a)으로 복귀되는 오일의 온도를 온도 센서(30a')를 통해 측정하여 충분한 온도로 상승되었으면, 상기 콘트롤러(120)가 서브공급관로(90)에 구비된 솔레노이드밸브(90a)를 닫고 히터(100)도 오프시킴과 동시에 주공급관로(40)의 솔레노이드밸브(40a)를 열어 도 2에 A방향으로 도시된 바와 같이 오일펌프(30)를 통해 펌핑된 오일이 과급기(10)로 공급되면서 동시에 바이패스관로(60)를 통해 압력 레귤레이터(70)를 통해 일정 압력으로 어큐뮬레이터(80)로 유입되어진다.Subsequently, the controller 120 measures the temperature of the oil returned to the oil pan 30a of the oil pump 230 through the return pipe 50 through the supercharger 10 and is sufficient by measuring the temperature through the temperature sensor 30a '. When the temperature rises, the controller 120 closes the solenoid valve 90a provided in the sub supply line 90, turns off the heater 100, and simultaneously opens the solenoid valve 40a of the main supply line 40. As shown in the direction A in FIG. 2, the oil pumped through the oil pump 30 is supplied to the supercharger 10, and at the same time, the accumulator 80 is operated at a predetermined pressure through the pressure regulator 70 through the bypass pipe 60. It is introduced into).

이상 설명한 바와 같이 본 발명에 의하면, 동절기에 저온의 오일로 인한 과급기의 손상을 저감하기 위해 엔진 오일의 상승을 위한 엔진 공회전을 방지함은 물론 디젤 엔진 차량을 가솔린 엔진 차량과 같이 작동시킬 수 있어 편리성이 크게 향상되는 효과가 있게 된다.As described above, according to the present invention, in order to reduce the damage of the supercharger caused by the low temperature oil in winter, it is convenient to prevent the engine idling for raising the engine oil and to operate the diesel engine vehicle like the gasoline engine vehicle. The effect is greatly improved sex.

Claims (5)

배기가스의 흐름을 이용해 유입라인을 통해 유입되는 공기를 압축시키는 과급기(10)로 오일팬(30a)의 오일을 펌핑하는 구동기어(30b)로 이루어진 오일펌프(30)를 통해 윤활 오일을 공급하는 주공급관로(40)와, 상기 오일펌프(30)를 통해 공급된 오일을 오일팬(30a)으로 리턴시키는 복귀관로(50) 및 상기 주공급관로(40)의 오일을 바이패스시켜 일정온도로 가열한 후 과급기(10)로 공급하는 가열수단으로 이루어진 차량의 과급기 보호시스템.Supplying lubricating oil through an oil pump (30) consisting of a drive gear (30b) for pumping the oil of the oil pan (30a) to the supercharger (10) for compressing the air flowing through the inlet line by using the flow of exhaust gas. Bypassing the oil in the main supply line 40, the return line 50 for returning the oil supplied through the oil pump 30 to the oil pan 30a and the main supply line 40 to a predetermined temperature A supercharger protection system for a vehicle, comprising heating means for supplying a supercharger after heating. 제 1항에 있어서, 상기 가열수단은 상기 주공급관로(40)에서 분기된 오일을 바이패스시키는 바이패스관로(60)에 구비되어 압력을 조절하는 레귤레이터(70)와, 이 레귤레이터(70)를 통해 유입된 오일을 충진하는 어큐뮬레이터(80) 및 이 어큐뮬레이터(80)에서 과급기(10)로 연결된 서브공급관로(90)상에 구비되어 공급되는 오일을 콘트롤러(120)의 제어신호에 따라 가열하는 히터(100)로 이루어진 것을 특징으로 하는 차량의 과급기 보호시스템.According to claim 1, wherein the heating means is provided in the bypass pipe 60 for bypassing the oil branched from the main supply pipe 40, the regulator 70 for adjusting the pressure, and the regulator 70 A heater for supplying oil supplied through the accumulator 80 and the sub supply pipe 90 connected to the supercharger 10 in the accumulator 80 to be supplied according to the control signal of the controller 120. Supercharger protection system for a vehicle, characterized in that consisting of (100). 제 2항에 있어서, 상기 콘트롤러(120)는 엔진 키스위치(110)의 ACC위치에 따라 온(On)되는 글로우플러그를 작동시키면서 동시에 히터(100)에 전원을 통전시키는 한편, 상기 글로우플러그가 오프된 후 오일펌프(30)의 오일팬(30a)내 온도를 측정하는 센서(30a')의 측정 온도 값에 따라 오일을 가열하는 히터(100)의 작동여부를 판단하는 것을 특징으로 하는 차량의 과급기 보호시스템.The method of claim 2, wherein the controller 120 operates the glow plug that is turned on according to the ACC position of the engine key switch 110 while simultaneously supplying power to the heater 100, while the glow plug is turned off. And the turbocharger of the vehicle, characterized in that it is determined whether the heater 100 for heating the oil is operated according to the measured temperature value of the sensor 30a 'measuring the temperature in the oil pan 30a of the oil pump 30. Protection system. 제 1항에 있어서, 상기 주공급관로(40)와 바이패스관로(60) 및 서브공급관로(90)에는 각각 그 흐름 방향의 역 방향 흐름을 차단하도록 체크밸브(40b,70a,100a)가 구비되어진 것을 특징으로 하는 차량의 과급기 보호시스템.The check valves 40b, 70a, and 100a of claim 1, wherein the main supply pipe 40, the bypass pipe 60, and the sub supply pipe 90 are each provided with a check valve 40b, 70a, 100a to block reverse flow in the flow direction. Supercharger protection system of a vehicle, characterized in that the. 제 1항에 있어서, 상기 주공급관로(40)와 서브공급관로(90)에는 오일의 온도에 따라 오일을 과급기(10)에 선택적으로 공급하도록 각각 솔레노이드밸브(40a,90a)가 구비되어진 것을 특징으로 하는 차량의 과급기 보호시스템.2. The solenoid valves 40a and 90a of claim 1, wherein the main supply line 40 and the sub supply line 90 are provided with solenoid valves 40a and 90a to selectively supply oil to the supercharger 10 according to the temperature of the oil. Supercharger protection system for vehicles.
KR1020010052791A 2001-08-30 2001-08-30 A turbo charger protecting system in vehicle KR20030018591A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949734U (en) * 1982-09-28 1984-04-02 日野自動車株式会社 Lubricating oil supply pipe for a turbocharger equipped with an electric heater
JPS6278422A (en) * 1985-09-30 1987-04-10 Mazda Motor Corp Lubrication device for turbocharged engine
KR19990032710U (en) * 1997-12-31 1999-07-26 정몽규 Oil supply aid
KR20010066008A (en) * 1999-12-31 2001-07-11 이계안 Turbo charger damage preventing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949734U (en) * 1982-09-28 1984-04-02 日野自動車株式会社 Lubricating oil supply pipe for a turbocharger equipped with an electric heater
JPS6278422A (en) * 1985-09-30 1987-04-10 Mazda Motor Corp Lubrication device for turbocharged engine
KR19990032710U (en) * 1997-12-31 1999-07-26 정몽규 Oil supply aid
KR20010066008A (en) * 1999-12-31 2001-07-11 이계안 Turbo charger damage preventing apparatus

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