KR200221826Y1 - Automatic oil injection device - Google Patents

Automatic oil injection device Download PDF

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KR200221826Y1
KR200221826Y1 KR2019980011990U KR19980011990U KR200221826Y1 KR 200221826 Y1 KR200221826 Y1 KR 200221826Y1 KR 2019980011990 U KR2019980011990 U KR 2019980011990U KR 19980011990 U KR19980011990 U KR 19980011990U KR 200221826 Y1 KR200221826 Y1 KR 200221826Y1
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oil
oil storage
temperature
storage tank
ball valve
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KR2019980011990U
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Korean (ko)
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KR19980059248U (en
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정연호
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정연호
한호테크(주)
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Abstract

본 고안은 자동차정비 및 카센터 등에서 자동차의 엔진오일이나 밋숀오일 등 각종오일을 교환하는 오일교환장치에 관한 것으로서, 일반 오일캔은 일정용량 캔에 주입 포장되어 유통되기 때문에 발생하는 폐오일캔에 의해 환경오염의 원인이 되기도 한다. 종전에도 "공업용액체의정량공급장치"가 공개된바 있었으나, 상기와 같은 일반오일탱크에 저장된 오일은 온도에 따른 점도의 변화로 펌핑작동시 높은 압력이 발생하여 모터의 과부하로 수명이 단축되는 요인이 되었고,주유호스에 내장된 오일은 오일탱크에 재회수되는 장치가 없었다. 이에 본 고안은 자동오일주입장치의 오일저장탱크내의 오일의 온도를 일정하게 유지시켜주는 히터의 제어를 온도의 변화에 따라 저항값이 변하는 온도센서를 오일저장탱크 하부에 부착해 이 저항값의 변화를 콘트롤러의 마이크로프로세서에 미리입력한 프로그램의 데이터에 의하여 온도를 역산하고 일정한 온도도달시, 콘트롤러에 구비된 정류기(SCR;교류를 직류로 변환시켜주는 반도체)에 신호를 송출하여, 히터의 전원을 온,오프시키도록 하여 기기에 부하도 미치지 않고 양질의 오일을 주입하도록된 고안인 것이다.The present invention relates to an oil exchange device for exchanging various oils, such as engine oils and miscushion oils, in automobile maintenance and car centers. It can also cause contamination. Previously, the "quantity supply device for industrial liquids" has been disclosed, but the oil stored in the general oil tank as described above is a factor that shortens the life due to the overload of the motor due to the high pressure during the pumping operation due to the change of viscosity according to the temperature. In this case, the oil contained in the oil hose was not recirculated to the oil tank. Therefore, the present invention attaches a temperature sensor that changes the resistance value according to the temperature change of the heater control that maintains the temperature of the oil in the oil storage tank of the automatic oil injection device to the lower part of the oil storage tank. Inverts the temperature according to the data of the program pre-inputted into the microprocessor of the controller, and when a certain temperature is reached, a signal is sent to the rectifier (SCR) provided in the controller to supply power to the heater. It is designed to inject high quality oil without load on equipment by turning on and off.

[색인어][Index]

자동오일주입장치Automatic oil injection device

Description

자동오일주입장치Automatic oil injection device

본 고안은 자동차정비 및 카센터 등에서 자동차의 엔진오일이나 밋숀오일 등 각종오일을 교환하는 오일교환장치에 관한것으로서, 종래에는 연료용 일반주유기와는 달리 자동차용오일의 주입은 일정량씩 정량 주입케 되므로서, 일정 용량들이의 캔에 주입 포장되어 유통되기 때문에 각 센터마다 발생하는 폐오일캔이 무수하게 방치되어 있어 환경오염의 원인이 되기도 한다. 이를 위하여 종전에도 국내공개실용신안공보(공개번호 97-5756호, 1997. 2. 21. 자) "공업용액체의정량공급장치"가 공개된바 있었으나, 대용량의 오일통을 거꾸로 삽입한 본체의 하부에 형성한 저장탱크에 연결한 모터펌프 끝에 게이지가 부착된 주입건를 설치해 펌핑되도록 한 액체정량 공급장치에 의하여 각 차종마다 필요로한 오일만을 정량주입할 수 있도록 하였으나, 상기와 같은 일반 오일탱크에 저장된 오일은 온도에 따른 점도의 변화로 펌핑작동시 높은 압력이 발생하여 모터의 과부하로 수명이 단축되는 요인 되었다.The present invention relates to an oil exchange device for exchanging various oils, such as engine oil or miscushion oil, in automobile maintenance and car centers. Unlike conventional fuel oilers, injecting oil for automobiles is fixed by a certain amount. However, since the cans are packaged and distributed in cans of certain volumes, waste oil cans generated at each center are left innumerably, which may cause environmental pollution. For this purpose, the Korean Utility Model Publication (Publication No. 97-5756, Feb. 21, 1997) has been published, but the lower part of the main body in which a large oil container is inserted upside down. Although the injection of the injection gun with a gauge was installed at the end of the motor pump connected to the storage tank formed in the tank, the pump was able to quantitatively inject only the oil required for each vehicle type. The oil has a high pressure during the pumping operation due to the change of viscosity according to the temperature and shortened the life due to the overload of the motor.

본 고안은 상기와 같은 폐단을 방지하기 위한 자동오일주입장치에 관한 것으로서, 자동오일주입장치의 오일저장탱크내의 오일의 온도를 일정하게 유지시켜주는 히터의 제어는 온도의 변화에 따라 저항값이 변하는 온도센서(15)를 오일저장탱크(12) 저면에 부착하여, 이 저항값의 변화를 콘트롤러의 마이크로프로세서에 미리 입력된 프로그램의 데이터에 의하여 온도를 역산하고 일정한 온도도달시 콘트롤러(18)에 구비된 정류기(SCR;교류를 직류로 변환시켜 주는 반도체)에 신호를 송출하여, 히터의 전원을 온, 오프시켜 오일의 온도를 일정하게 유지시킴으로서, 기기에 부하도 미치지 않고 양질의 오일을 주입하도록 함이 본고안이 이루고자하는 기술적 과제인 것이다.The present invention relates to an automatic oil injection device for preventing such a closed end, the control of the heater to maintain a constant temperature of the oil in the oil storage tank of the automatic oil injection device changes the resistance value in accordance with the change in temperature The temperature sensor 15 is attached to the bottom surface of the oil storage tank 12, and the change of the resistance value is inverted by the data of a program pre-inputted into the microprocessor of the controller, and the controller 18 is provided at a constant temperature. It sends a signal to a rectifier (SCR), which converts AC into DC, and turns on and off the heater to maintain a constant temperature of oil so that high quality oil is injected without any load on the device. This is a technical task to be achieved.

제1도는 본 고안에 따라 오일주입건이 생략된 본체의 외관사시도.1 is an external perspective view of the main body without the oil injection gun according to the present invention.

제2도는 본 고안에 따른 본체의 우측면도.2 is a right side view of the main body according to the present invention.

제3도는 본 고안에 따른 자동오일장치내부의 배관공정도.3 is a piping process diagram inside the automatic oil apparatus according to the present invention.

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

100 : 본체 1 : 본체상부전면도어100: main body 1: upper body front door

1' : 오일저장호퍼 2 : 본체하부전면도어1 ': Oil storage hopper 2: Main body lower front door

3 : 조작버튼부 4 : 오일저장눈금표시부3: operation button part 4: oil storage scale display part

5 : 오일저장탱크부 6 : 하단프레임부5: oil storage tank part 6: lower frame part

7 : 이동바퀴부 8 : 주유건7: moving wheel part 8: fuel case

9 : 자동호스릴 10 : 전원스위치9: Auto hose reel 10: Power switch

11 : 누름버튼 12 : 오일저장탱크11: push button 12: oil storage tank

13 : 히터 14 : 자동호스릴조립플랜지13: heater 14: automatic hose reel assembly flange

15 : 온도센서 16 : 전동모터15: temperature sensor 16: electric motor

17 : 기어펌프 18 : 콘트롤러17 gear pump 18 controller

19 : 볼밸브1 20 : 오일필터19: ball valve 1 20: oil filter

21 : 볼밸브2 22 : 볼밸브321: ball valve 2 22: ball valve 3

23 : 퀵커플러 24 : 체크밸브23: quick coupler 24: check valve

25 : 압력스위치 26 : 유량센서25 pressure switch 26 flow sensor

이와 같은 목적을 이루고자 하는 본 고안의 구성은 오일저장탱크(12)가 내장된 본체상부전면도어(1)의 일켠에 버튼부조작판넬부(3)에 전원스위치(10)와 누름버튼(11)가 형성되며, 다른 일켠에는 오일저장눈금표시부(4)가 형성된 상기 오일저장탱크(12)의 하부의 오일저장호퍼(1')의 외주연에는 히터(13)를 형성하고, 상기 오일저장호퍼(1')로 유입되는 오일은 볼밸브1(19), 오일필터(20), 볼밸브2(21)를 거친 한 배관은 본체(100)의 하단프레임부(6)내에 설치된 전동모터(16)에 설치된 기어펌프(17)로 연결되어 체크밸브(24)와 유량센서(26)와 자동호스릴(9)을 거쳐 주유건(8)으로 펌핑되게 하며, 상기의 볼밸브2(21)로부터 분기된 다른 배관에는 퀵카플러(23)를 경유한 유로를 주유드럼에 연결하는 한편, 체크밸브(24)와 유량센서(26) 구간의 배관에는 조작버튼부(3)가 형성된 본체상부전면도어(1)내부에 마련된 콘트롤러(18)와 접속된 압력스위치(25)와 유량센서(26) 사이에서 분기된 배관 위로는 볼밸브3(22)에 연결된 배관이 오일저장탱크(12)내에 체결 된것이다. 도면중 미설명부호 "15"는 오일저장탱크(1)의 바닥에 부착된 온도센서이다. 이와 같이 구성된 본 고안의 일실시 작용효과로는 다음과 같이 첨부된 도면에 의하여 함께 알아보면 다음과 같다.The structure of the present invention to achieve the above object is the power switch 10 and the push button 11 to the button operation panel part 3 on one side of the upper body front door (1) in which the oil storage tank 12 is built Is formed, and on the other side, a heater 13 is formed at the outer periphery of the oil storage hopper 1 'at the bottom of the oil storage tank 12 in which the oil storage scale display unit 4 is formed, and the oil storage hopper ( 1 ') is the oil flowing through the ball valve 1 (19), the oil filter 20, the ball valve 2 (21) pipe through the electric motor 16 is installed in the lower frame portion 6 of the main body 100 It is connected to the gear pump (17) installed in the pump through the check valve 24, the flow sensor 26 and the automatic hose reel (9) to the main fuel (8), branched from the ball valve 2 (21) In the other piping, the flow path via the quick coupler 23 is connected to the oil supply drum, while the operation button part 3 is formed in the piping between the check valve 24 and the flow sensor 26. The pipe connected to the ball valve 3 (22) is connected to the oil storage tank 12 above the pipe branched between the pressure switch 25 and the flow sensor 26 connected to the controller 18 provided inside the front door 1 of the main body. Inside) In the drawings, reference numeral 15 denotes a temperature sensor attached to the bottom of the oil storage tank 1. As an effect of one embodiment of the present invention configured as described above will be described with reference to the accompanying drawings as follows.

본 고안은 따른 자동오일주입장치의 각 구성별 주요작용으로 오일저장탱크(12)는 오일을 저장, 보관하는 장치로서 오일탱크 하단부에 일정한 양의 오일을 가열할수 있는 히터장치를 할수있도록 설계되어 있으며, 히터(13)는 온도변화에 따른 오일의 점도변화를 일정한 점도를 유지시켜주는 장치이며, 온도센서(15)는 온도에 따른 저항값의 변화에 의한 오일의 온도를 측정하는 장치이며, 볼밸브1(19)은 오일 저장탱크(12)에서 시작되는 배관의 첫 번째 밸브로서 수리 및 부품교환등의 작업시 오일의 흐름을 차단하는 장치이며, 오일필터(20)는 오일내에 함유된 불순물을 여과하는 장치이며, 볼밸브2(21)는 오일저장탱크(12)의 배관을 차단시키고 대신 퀵커플러(23)측으로 유로를 여는 장치로서, 볼밸브2(21)와 볼밸브3(22)를 연결하는 링크가 있어 동시에 연계하여 동작시키며, 드럼으로부터 본 자동오일주입기 본체(100) 내부로 오일을 흡입하는 과정은 볼밸브2(21)를 잠궈 오일저장탱크(12)에서 나오는 오일을 차단한체, 전동모터(16)의 동작에 따라 기어펌프(17)를 가동시켜 체크밸브(24)를 통해 볼밸브3(22)를 통과하는 경로로 퀵카플러(23)에 연결된 배관을 통해 드럼으로부터 오일을 흡입하여 오일저장탱크(12)에 오일이 보충되는 장치인 것이다.The oil storage tank 12 is a device for storing and storing oil as a main action of each component of the automatic oil injection device according to the present invention, and is designed to enable a heater device capable of heating a certain amount of oil at the bottom of the oil tank. , The heater 13 is a device for maintaining a constant viscosity of the viscosity change of the oil according to the temperature change, the temperature sensor 15 is a device for measuring the temperature of the oil by the change of the resistance value according to the temperature, ball valve 1 (19) is the first valve of the pipe starting from the oil storage tank 12 is a device that blocks the flow of oil during work such as repair and replacement parts, the oil filter 20 filters the impurities contained in the oil The ball valve 2 (21) is a device that blocks the pipe of the oil storage tank 12 and opens the flow path to the quick coupler 23 side, and connects the ball valve 2 (21) and the ball valve 3 (22) There is a link In the process of sucking oil into the automatic oil injector main body 100 from the drum, the ball valve 2 (21) is locked to shut off the oil from the oil storage tank 12, and the operation of the electric motor 16 is performed. In accordance with the operation of the gear pump 17 through the check valve 24 through the ball valve 3 (22) in the path through the pipe connected to the quick coupler 23, the oil is sucked from the drum to the oil storage tank 12 It is a device that is supplemented with oil.

볼밸브3(22)는 오일보충시 오일저장탱크의 주유건(8)측의 유로를 통제하도록 되어 있으며, 퀵카플러(23)는 평상시에는 퀵카플러를 분리하고 드럼에서 본 기기로 오일을 보충시키는 장치이며, 체크밸브(24)는 주유건(8)을 닫았을 때, 배관내 오일이 기어펌프(17)쪽으로 역류하지 않게 하여 배관내에 정체된 오일의 압력을 일정하게 유지시키는 장치이며, 압력스위치(25)는 주유건(8)을 열었을때와 닫았을때의 압력을 감지하는 장치로서 주유건(8)을 닫았을 때 압력스위치(25)의 접점이 오프(off) 되어 이 신호를 콘트롤러(18)에 인가하고, 열었을 때 접점이 온(on) 되도록 한다.The ball valve 3 (22) is configured to control the flow path of the oil storage tank (8) side of the oil storage tank during oil replenishment, and the quick coupler (23) normally separates the quick coupler and replenishes the oil from the drum with this unit. The check valve 24 is a device that maintains a constant pressure of oil stagnated in the pipe by preventing the oil in the pipe from flowing back toward the gear pump 17 when the main oil gun 8 is closed. (25) is a device for detecting the pressure when the fuel gun (8) is opened and closed, the contact of the pressure switch (25) is turned off (off) when the fuel gun (8) is closed to control this signal ( 18) and make contact on when opened.

한편 유량센서(26)는 온도에 따른 오일의 점도 변화에 따른 토출유량의 변화를 체크하거나 높은 압력에 대한 내압을 견딜수 있게 설계되어 있으며, 감지된 아날로그신호 방식의 유속을 콘트롤러(18)에 제공하는 장치이다. 또한 자동호스릴(9)은 호스릴 내부에 있는 판스프링의 복원력을 이용하여 호스를 잡아당겼을때 일정 위치에서 정지하며 다시 잡아당겼다가 높았을때 호스를 복원시키는 장치이며, 주유건(8)은 오일의 토출을 시작하고 종료시키는 장치로서 이를 직접 엔진 및 사용처에 주입하여 높은 압력에서도 사용이 가능하며 투출부 끝단에 밸브를 부착하여 잔여오일의 발생을 차단하는 작용을 한다. 전동모터(16)은 220V 단상모터로서 회전축에 기어펌프(17)을 부착하여 오일을 이송시키는 장치이며, 콘트롤러(18)는 히터, 온도센서, 압력스우치, 유량센서등의 모든제어를 하는 장치로서 마이크로프로세서를 이용하여 미리 프로그램되어진 데이터에 의해 본 기기를 제어하는 장치이며, 조작버튼부(3)는 투출량의 설정, 조정등의 버튼으로서, 투출되고 있는 오일의 양을 수치로 표시, 실질적으로 판매된 오일의 양을 누계집계하여 표시시키는 장치이다. 이와 같은 각부품으로 이루어져 동작되는 본 고안 자동오일주입장치는 오일저장탱크(1)내에 저장된 오일에 일정한 온도를 유지시켜 주기 위하여, 오일저장호퍼(1')의 외주연에 형성된 히터(13)의 제어는 온도센서(15)를 오일정장탱크(12) 저면에 부착하여 온도에 따른 저항값의 변화는 콘트롤러(18)의 마이크로프로세서에 미리 프로그램된 데이터에 의해 온도가 역산되고 설정한 일정 온도에 도달시, 콘트롤러(18)에 구비된 정류기(SCR;교류를 직류로 변환시키는 반도체)에 신호를 송출하여 히터(13)의 전원을 온, 오프 시키는 장치로 연결된것으로서, 오일이 미리 세팅된 설정온도에 도달하면 본 주입기는 작동을 시작하며 사용자가 누름버튼(11)을 누르면 전동모터(16)와 기어펌프(17)가 동작하여 오일저장탱크(12)의 오일을 흡입하며, 일정압력이 발생하는 것을 압력스위치(25)가 감지하여 전동모터(16)을 재 작동시키고 이때 체크밸브(24)-유량센서(26)-자동호스릴(9)-주유건(8)을 통해 오일이 투출되는 유속을 유량센서(26)가 감지하여 콘트롤러(18)에 아날로그 신호를 송출하면 이를 디지털 신호로 변환하여 마이크로프로세서가 데이터를 산출하고 투출되는 유량을 감지하며 셋팅된 오일주입량에 도달하면 전동모터(16)의 전원을 차단하여 토출을 멈추게 한다. 한편 오일저장탱크(12)에 저장된 오일이 소비되어 재보충시 볼밸브2(21)와 볼밸브3(22)를 작동시켜 유로를 변경하고 누름버튼(11)을 누르면 퀵카플러(23)에 연결된 배관을 통해 드럼에서 흡입하여 볼밸브3(22)을 통하여 오일저장탱크(12)로 역보충 되도록 하여 오일의 허실을 없앤 유용한 고안인 것이다.On the other hand, the flow sensor 26 is designed to check the change in the discharge flow rate according to the change in the viscosity of the oil according to the temperature or to withstand the internal pressure against the high pressure, and to provide the controller 18 with the detected flow rate of the analog signal system Device. In addition, the automatic hose reel (9) is a device for restoring the hose when the hose is pulled again and pulled up again when the hose is pulled by using the restoring force of the leaf spring inside the hose reel, the fuel gun (8) Silver is a device to start and stop the discharge of oil, which can be directly injected into the engine and the place of use so that it can be used even at high pressures. The valve is attached to the discharge end to block the generation of residual oil. Electric motor 16 is a 220V single-phase motor is a device that transfers oil by attaching a gear pump 17 to the rotating shaft, the controller 18 is a device for all the control, such as heater, temperature sensor, pressure switch, flow sensor As a device for controlling the unit by data programmed in advance using a microprocessor, the operation button unit 3 is a button for setting, adjusting, or discharging the amount of oil being discharged, It is a device that aggregates and displays the amount of oil sold. The present invention automatic oil injection device operating by consisting of such components is to maintain a constant temperature in the oil stored in the oil storage tank (1), of the heater 13 formed on the outer periphery of the oil storage hopper (1 ') The control attaches the temperature sensor 15 to the bottom of the oil suit tank 12 so that the change in the resistance value according to the temperature is inverted by the data preprogrammed in the microprocessor of the controller 18 and reaches the set temperature. Is connected to a device that sends a signal to a rectifier (SCR) provided in the controller 18 to turn on and off the power of the heater 13, and the oil is connected to a preset temperature. When it reaches, the injector starts to operate. When the user presses the push button 11, the electric motor 16 and the gear pump 17 operate to suck oil from the oil storage tank 12, and generate a certain pressure.The power switch 25 detects and restarts the electric motor 16. At this time, the flow rate of oil is discharged through the check valve 24, the flow sensor 26, the automatic hose reel 9, and the oil gun 8. When the flow sensor 26 detects and sends an analog signal to the controller 18, it converts it into a digital signal so that the microprocessor calculates data, detects the flow rate, and reaches the set oil injection amount of the electric motor 16. Shut off the power supply to stop the discharge. On the other hand, when the oil stored in the oil storage tank 12 is consumed and refilled, the ball valve 2 (21) and the ball valve 3 (22) are operated to change the flow path and press the push button 11 to be connected to the quick coupler 23. It is a useful design that eliminates the loss of oil by inhaling from the drum through the pipe to be supplemented back to the oil storage tank 12 through the ball valve (3) (22).

Claims (1)

오일저장탱크(12)가 내장된 본체상부전면도어(1)의 일켠의 조작버튼부(3)에 전원스위치(10)와 누름버튼(11)가 형성되며, 다른 일켠에는 오일저장눈금표시부(4)가 형성된 상기 오일저장탱크(12)의 하부의 오일저장호퍼(1')의 외주연에는 히터(2)를 형성하고, 상기 오일저장호퍼(1')로 유입되는 오일은 볼밸브1(19), 오일필터(20), 볼밸브2(21)를 거친 한 배관은 본체(100)의 하단프레임부(6)내에 설치된 전동모터(16)에 설치된 기어펌프(17)로 연결되어 체크밸브(24)와 유량센서(26)와 자동호스릴(9)을 거쳐 주유건(8)으로 펌핑되게 하며, 상기의 볼밸브2(21)로부터 분기된 다른 배관에는 퀵카플러(8)를 경유한 유로를 주유드럼에 연결하는 한편, 체크밸브(24)와 유량센서(26) 구간의 배관에는 조작버튼부(3)가 형성된 본체상부전면도어(1)내부에 마련된 콘트롤러(18)와 접속된 압력스위치(25)와 유량센서(26)상이의 분기된 배관 위로는 볼밸브3(22)에 연결된 배관이 오일저장탱크(1)내에 체결 됨을 특징으로하는 자동오일주입장치.A power switch 10 and a push button 11 are formed at one side of the operation button part 3 of the upper front door 1 in which the oil storage tank 12 is embedded, and the other side has an oil storage scale display part 4. Heater is formed on the outer circumference of the oil storage hopper 1 'at the bottom of the oil storage tank 12, and the oil flowing into the oil storage hopper 1' is ball valve 1 (19). ), The oil filter 20 and the ball valve 2 (21) through the pipe connected to the gear pump (17) installed in the electric motor 16 installed in the lower frame portion 6 of the main body 100 is a check valve ( 24) and the flow sensor 26 and the automatic hose reel (9) to be pumped to the main oil gun (8), the flow path via the quick coupler (8) to the other pipe branched from the ball valve 2 (21) Is connected to the lubrication drum, and the pressure connected to the controller 18 provided in the upper front door 1 of the main body in which the operation button part 3 is formed is provided in the piping between the check valve 24 and the flow sensor 26. Switch 25 and the flow rate sensor 26 automatically oil injection apparatus of the branch pipe is up the pipe connected to the ball valve 3 (22) that the fastening in the oil storage tank (1) of different characteristics.
KR2019980011990U 1998-07-01 1998-07-01 Automatic oil injection device KR200221826Y1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100387273B1 (en) * 2000-10-30 2003-06-12 노종근 Lubricator of lubricating oil
KR100748674B1 (en) 2006-07-26 2007-08-10 현대자동차주식회사 Pocket unit of a gun for injecting oil in a vehicle
KR101277327B1 (en) 2011-11-25 2013-06-20 윤성남 an apparatus for oil injection and recovery of motorcar

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200477638Y1 (en) * 2013-12-20 2015-07-07 주식회사 아원 Gun for automatic injecting lubricant oil using the power of a vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100387273B1 (en) * 2000-10-30 2003-06-12 노종근 Lubricator of lubricating oil
KR100748674B1 (en) 2006-07-26 2007-08-10 현대자동차주식회사 Pocket unit of a gun for injecting oil in a vehicle
KR101277327B1 (en) 2011-11-25 2013-06-20 윤성남 an apparatus for oil injection and recovery of motorcar

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KR19980059248U (en) 1998-10-26

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