KR100488976B1 - washer-liquid heating structure in a car - Google Patents
washer-liquid heating structure in a car Download PDFInfo
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- KR100488976B1 KR100488976B1 KR10-2003-0003112A KR20030003112A KR100488976B1 KR 100488976 B1 KR100488976 B1 KR 100488976B1 KR 20030003112 A KR20030003112 A KR 20030003112A KR 100488976 B1 KR100488976 B1 KR 100488976B1
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- South Korea
- Prior art keywords
- washer
- vehicle
- washer fluid
- injection
- exhaust gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/487—Liquid supply therefor the liquid being heated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/02—Heating, cooling or ventilating devices the heat being derived from the propulsion plant
- B60H1/025—Heating, cooling or ventilating devices the heat being derived from the propulsion plant from both the cooling liquid and the exhaust gases of the propulsion plant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/481—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
- B60S1/482—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means combined with the operation of windscreen wipers
- B60S1/483—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means combined with the operation of windscreen wipers using a supply pump driven by the windscreen-wiper motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/52—Arrangement of nozzles; Liquid spreading means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
본 발명은 차량의 엔진룸 내부에 설치되며 시동 중에 고온 상태인 배기가스 재활용 밸브(Exhaust Gas Re-circulation Valve)에 분사호스를 권회하여 내부에서 유동되는 와셔액을 가열할 수 있는 차량의 와셔액 예열구조에 관한 것이다.The present invention is installed in an engine room of a vehicle and is wound on a washer fluid preheating structure of a vehicle capable of heating a washer fluid flowing therein by winding a spray hose to an exhaust gas re-circulation valve that is at a high temperature during starting. It is about.
본 발명에 따른 차량의 와셔액 예열구조는 차량의 엔진룸 내에 와셔액을 충만한 와셔탱크가 펌프를 구비하면서 설치되고, 이 펌프에 와셔액을 분사시키는 분사노즐을 선단에 결합한 분사호스가 연결되도록 구성된 차량의 와셔액 분사구조에 있어서, 분사호스는 그 내부를 유동하는 와셔액의 가열을 위해 차량의 엔진룸 내부에 구비된 배기가스 재활용 밸브의 외주면에 권회되는 것을 특징으로 한다.The washer fluid preheating structure of the vehicle according to the present invention is provided with a washer tank filled with washer fluid in the engine room of the vehicle with a pump, and the washer fluid of the vehicle configured to be connected to an injection hose coupled to the distal end of the injection nozzle for injecting the washer fluid into the pump. In the injection structure, the injection hose is wound on the outer circumferential surface of the exhaust gas recycling valve provided in the engine room of the vehicle for heating the washer liquid flowing therein.
Description
본 발명은 차량의 와셔액 예열구조에 관한 것으로, 보다 상세하게는 차량의 엔진룸 내부에 설치되며 시동 중에 고온 상태인 배기가스 재활용 밸브(Exhaust Gas Re-circulation Valve)에 분사호스를 권회하여 내부에서 유동되는 와셔액을 예열할 수 있는 차량의 와셔액 예열구조에 관한 것이다.The present invention relates to a washer fluid preheating structure of a vehicle, and more particularly, is installed inside an engine room of a vehicle and wound in a spray hose to an exhaust gas re-circulation valve that is hot during startup. It relates to a washer liquid preheating structure of a vehicle capable of preheating the washer liquid.
일반적으로, 차량에는 비가 오거나 눈이 내릴 때, 또는 윈드실드글래스에 진흙물이 튀는 등 운전자의 전방시야를 확보하는데 지장을 받게 될 때, 윈드실드글래스에 떨어진 빗방울이나 이물질 등을 제거하기 위하여 와이퍼가 설치되어 있다.Generally, a wiper is used to remove raindrops or foreign objects that have fallen on the windshield glass when it rains or snows, or when it is hindered to secure the driver's field of view, such as splashing mud on the windshield glass. It is installed.
이러한 와이퍼는 운전석의 전면에 위치한 스티어링 휠의 일측 컴비네이션스위치의 조작에 따라 와이퍼 구동모터가 작동되어 윈드실드글래스의 외측면에 밀착된 와이퍼가 일정각도씩 시계방향과 반시계방향으로 선회하면서 윈드실드글래스에 묻어 있는 물방울이나 눈발 등을 제거하도록 되어 있다.These wipers operate the wiper drive motor according to the operation of the combination switch on one side of the steering wheel located at the front of the driver's seat, and the windshield glass is turned against the outer side of the windshield glass by turning it clockwise and counterclockwise at an angle. It is designed to remove water droplets and snow feet on the surface.
특히, 상기 와이퍼가 작동할 때 윈드실드글래스와 접하는 부분에 자연적(빗물이나 눈발) 세정액이 부족할 때 사용하기 위하여 별도의 세정액 즉 와셔액이 들어있는 와셔탱크가 엔진룸의 일측에 장착되어 있으며, 상기 와셔탱크의 와셔액은 펌프의 작동으로 분사노즐을 통해 윈드실드글래스의 전면에 분사되도록 되어 있다.In particular, when the wiper is operated, a washer tank containing a separate cleaning liquid, that is, a washer liquid, is used at one side of the engine room for use when there is a lack of natural (rain or snow) cleaning liquid in contact with the windshield glass when the wiper operates. The washer liquid in the tank is sprayed to the front of the windshield glass through the spray nozzle by the operation of the pump.
도 1에 도시한 바와 같이, 종래 차체(1)의 전면에는 운전자의 전방시계를 확보하기 위한 윈드실드글래스(2)가 부착되어 있고, 그 하측으로 한 쌍의 와이퍼(3)가 설치되어 있으며, 엔진룸의 덮개인 본네트(4)에 분사노즐(5)이 설치되어 운전자의 조작에 의해 와셔액이 윈드실드글래스(2)에 분사되도록 되어있다As shown in Fig. 1, a windshield glass 2 for securing a driver's front clock is attached to the front of the conventional vehicle body 1, and a pair of wipers 3 are provided below the vehicle body. A spray nozzle 5 is installed in the bonnet 4, which is a cover of the engine room, so that the washer fluid is injected into the windshield glass 2 by the driver's operation.
상기 와이퍼(3)는 전기적 신호에 의해 구동되는 구동모터(도시하지 않음)의 회전력에 의해 와이퍼링과 와이퍼암이 작동되어 와이퍼암의 단부에 결합된 와이퍼(3)가 윈드실드글래스(2)의 외측면에 밀착되어 선회하도록 되어 있다.The wiper 3 operates the wiper ring and the wiper arm by the rotational force of a driving motor (not shown) driven by an electrical signal, so that the wiper 3 coupled to the end of the wiper arm has a windshield glass 2 of the windshield glass 2. It is in close contact with the outer surface to pivot.
또한, 상기 와이퍼(3)가 작동될 때 윈드실드글래스(2)에 묻어 있는 이물질을 보다 깨끗하게 닦아내기 위해 분사되는 와셔액은 엔진룸의 일측면을 이루는 휠에이프런패널(도시하지 않음)에 부착된 와셔탱크(6)에 저장되어 있으며, 와셔탱크(6)의 일측에 펌프(7)가 설치되고, 본네트(4)의 상단부에 설치된 분사노즐(5)을 통해 윈드실드글래스(2)에 와셔액이 분사되는 와셔액 분사장치가 설치되어 있다.Also, when the wiper 3 is operated, the washer liquid sprayed to clean the foreign matter on the windshield glass 2 more cleanly is attached to a wheel apron panel (not shown) forming one side of the engine compartment. The pump (7) is stored in the tank (6), the pump (7) is installed on one side of the washer tank (6), and the washer liquid is injected into the windshield glass (2) through the injection nozzle (5) installed at the upper end of the bonnet (4). Washer liquid injection device is installed.
그리고, 상기 와셔액을 압송시키는 펌프(7)와 분사노즐(5)간에는 분사호스(8)가 설치되어 와셔액을 이송시킨다.In addition, an injection hose 8 is installed between the pump 7 and the injection nozzle 5 for pumping the washer liquid to transfer the washer liquid.
상기 펌프(7)에서 압송되는 와셔액을 윈드실드글래스(2)의 좌·우측으로 나누어 분사시키기 위해서 조인트(9)가 형성되어 있다.A joint 9 is formed in order to divide and wash the washer liquid fed from the pump 7 to the left and right sides of the windshield glass 2.
상기와 같은 와셔액 분사장치는 윈드실드글래스(2)에 밀착되어 있는 와이퍼(3)를 작동시켜, 윈드실드글래스(2)에 묻은 이물질을 닦기에는 불충분할 경우와 앞차에 의해 흩날리는 진흙물이 묻게 될 때 와셔액을 윈드실드글래스(2)의 전면에 분사시켜 깨끗하게 닦아내기 위해 사용하고 있다. The washer fluid injection device as described above operates the wiper 3 in close contact with the windshield glass 2 so that it is insufficient to wipe off the foreign matter on the windshield glass 2 and the mud splashed by the vehicle ahead. When the washer is sprayed on the front of the windshield glass (2), it is used to wipe clean.
그러나, 종래의 와셔액 분사장치는 평상기온이 영하이하로 내려가는 동절기, 특히 동절기 아침에 차량을 이용하려 할 경우 윈드실드글래스에 서리가 끼게되며 이를 제거하기 위해 와셔액을 분사시켜 와이퍼로 닦아내게 되는데, 이때 와셔액은 윈드실드글래스에 분사됨과 동시에 결빙되어 운전자의 전방시계 확보에 도움을 주지 못하는 문제점이 있었다. However, in the conventional washer liquid injector, when the vehicle is used in winter, especially in the morning when the normal temperature falls below zero, the windshield glass gets frosted. The washer fluid was sprayed onto the windshield glass and frozen at the same time, thus preventing the driver from securing the front watch.
본 발명은 상기한 종래 기술의 문제점을 해결하고자 제안된 것으로서, 차량의 시동시 고온 상태인 배기가스 재활용(Exhaust Gas Re-circulation)밸브의 외주면에 와셔액을 예열시키기 위해 분사호스를 권회하여 동절기 와셔액을 예열시켜 윈드실드글래스의 서리를 용이하게 제거할 수 있는 차량의 와셔액 예열구조를 제공함을 그 목적으로 한다.The present invention has been proposed to solve the above problems of the prior art, by winding the injection hose to preheat the washer fluid on the outer circumferential surface of the exhaust gas re-circulation valve at high temperature when the vehicle is started, It is an object of the present invention to provide a washer liquid preheating structure of a vehicle which can be preheated to easily remove the frost of the windshield glass.
상기한 목적을 달성하기 위한 본 발명은 차량의 엔진룸 내에 와셔액을 충만한 와셔탱크가 펌프를 구비하면서 설치되고, 이 펌프에 와셔액을 분사시키는 분사노즐을 선단에 결합한 분사호스가 연결되도록 구성된 차량의 와셔액 분사구조에 있어서, 상기 분사호스는 그 내부를 유동하는 와셔액의 예열을 위해 상기 차량의 엔진룸 내부에 구비된 배기가스 재활용 밸브의 외주면에 권회되는 것을 특징으로 하는 차량의 와셔액 예열구조를 제공하려는 것이다. In order to achieve the above object, the present invention provides a washer tank filled with washer fluid in a engine room of a vehicle provided with a pump, and the washer fluid of the vehicle configured to be connected to an injection hose coupled to the distal end of the injection nozzle for injecting the washer fluid into the pump. In the injection structure, the injection hose is to provide a washer fluid preheating structure of the vehicle, characterized in that wound around the outer circumferential surface of the exhaust gas recycling valve provided in the engine room of the vehicle for preheating the washer fluid flowing therein. .
이하, 본 발명의 구성을 첨부한 도면을 참조하여 더욱 상세히 설명한다. Hereinafter, with reference to the accompanying drawings, the configuration of the present invention will be described in more detail.
도 2는 본 발명에 따른 와셔액 예열구조를 나타낸 구성도이다.2 is a block diagram showing a washer liquid preheating structure according to the present invention.
종래의 기술과 동일 또는 유사한 구성요소에 대해서는 그 자세한 설명과 도면부호를 생략하기로 한다.For the same or similar components as in the prior art, detailed descriptions and reference numerals will be omitted.
도 2에 도시한 바와 같이, 본 발명에 따른 차량의 와셔액 예열구조는 차량의 엔진룸 내에 와셔액을 충만한 와셔탱크(16)가 펌프(17)를 구비하면서 설치되고, 이 펌프(17)에 와셔액을 분사시키는 분사노즐(15)을 선단에 결합한 분사호스(18)가 연결되도록 구성된 차량의 와셔액 분사구조에 있어서, 분사호스(18)는 그 내부를 유동하는 와셔액의 예열을 위해 차량의 엔진룸 내부에 구비된 배기가스 재활용 밸브(20)의 외주면에 권회되는 것을 특징으로 한다.As shown in FIG. 2, the washer fluid preheating structure of the vehicle according to the present invention is provided with a washer tank 16 filled with washer fluid in the engine room of the vehicle, provided with a pump 17, and the washer fluid is applied to the pump 17. In the washer fluid injection structure of a vehicle configured such that an injection hose 18 coupled with a jet nozzle 15 for injection is connected to the tip, the injection hose 18 is provided inside the engine room of the vehicle for preheating the washer fluid flowing therein. It is characterized by being wound on the outer circumferential surface of the provided exhaust gas recycling valve (20).
도 2에 도시한 바와 같이, 차량의 엔진룸 내부에는 와셔액을 저장하는 와셔탱크(16)가 구비되고, 와셔탱크(16)의 일측면에는 펌프(17)가 연결되어 있다.As shown in FIG. 2, a washer tank 16 for storing washer fluid is provided in an engine room of the vehicle, and a pump 17 is connected to one side of the washer tank 16.
그리고, 상기 와셔액은 펌프(17)에 의해 와셔탱크(16)로부터 펌핑(pumping)되어 분사호스(18)를 통해 유동되며, 조인트(19)에 의해 한 쌍의 분사노즐(15)로 분기되어 윈드실드글래스(도시하지 않음)에 분사되게 구비된다.Then, the washer liquid is pumped from the washer tank 16 by the pump 17 and flows through the injection hose 18, and is branched to the pair of injection nozzles 15 by the joint 19 to wind the wind. It is provided to be sprayed on the shield glass (not shown).
한편, 상기 분사호스(18)는 차량의 엔진룸 내부에 구비된 배기가스 재활용 밸브(20)의 외주면에 권회 되도록 형성된다.On the other hand, the injection hose 18 is formed to be wound on the outer peripheral surface of the exhaust gas recycling valve 20 provided in the engine room of the vehicle.
상기 배기가스 재활용 밸브(20)는 통상적으로 EGR(Exhaust Gas Re-circulation) 밸브로 배기가스 중의 일부를 흡입 매니폴드로 재활용시켜 질소산화물(NOx)의 배출을 억제하는 기능을 한다. The exhaust gas recycling valve 20 typically functions as an exhaust gas recirculation (ECR) valve to recycle a part of the exhaust gas to the intake manifold to suppress the emission of nitrogen oxides (NOx).
상기 배기가스 재활용 밸브(20)를 사용하면 배기가스는 재활용 되면서 연소온도는 낮아져 질소산화물(NOx)의 양이 약 60%정도로 감소된다.When the exhaust gas recycling valve 20 is used, the exhaust gas is recycled while the combustion temperature is lowered, thereby reducing the amount of nitrogen oxides (NOx) to about 60%.
그리고, 상기 배기가스 재활용 밸브(20)는 다이어프램에 의해 작동하는 백 프레셔타입의 EGR밸브와 ECM의 PWM제어에 의해 개도가 연속적으로 조정되는 리니어(Linear) EGR밸브가 있다.The exhaust gas recycling valve 20 includes a back pressure type EGR valve operated by a diaphragm and a linear EGR valve whose opening degree is continuously adjusted by PWM control of the ECM.
이때, 상기 배기가스 재활용 밸브(20)는 차량의 시동 중에 표면상의 온도가 300 내지 400℃의 온도를 유지하게 된다.At this time, the exhaust gas recycling valve 20 maintains a temperature of 300 to 400 ℃ on the surface during the start of the vehicle.
한편, 상기 분사호스(18)가 배기가스 재활용 밸브(20)에 권회되면 펌프(17)에 의해 펌핑(pumping)되어 분사되는 와셔액의 온도는 상승되어 가열되게 된다.On the other hand, when the injection hose 18 is wound on the exhaust gas recycling valve 20, the temperature of the washer liquid injected by being pumped by the pump 17 is heated to be heated.
즉, 상기 펌프(17)가 구동되면 와셔액은 와셔탱크(16)로부터 펌핑되어 분사호스(18) 내부를 유동하게 된다.That is, when the pump 17 is driven, the washer fluid is pumped from the washer tank 16 to flow inside the injection hose 18.
그리고, 차량에 시동이 걸려 있는 상태에서 상기 분사호스(18)가 권회된 배기가스 재활용 밸브(20)가 가열됨에 따라 분사호스(18) 내의 와셔액도 가열이 되며, 와셔액은 온수로 가열된다.As the exhaust gas recycling valve 20 in which the injection hose 18 is wound is heated while the vehicle is started, the washer liquid in the injection hose 18 is also heated, and the washer liquid is heated by hot water.
또한, 상기 분사호스(18)는 배기가스 재활용 밸브(20)의 외주온도에서 녹거나 변형되지 않는 재질로 이루어진다.In addition, the injection hose 18 is made of a material that does not melt or deform at the outer circumferential temperature of the exhaust gas recycling valve 20.
그리고, 상기 분사호스(18)는 배기가스 재활용 밸브(20)의 외주면에서 슬립이 발생되어 이탈되지 않도록 안정적으로 권회되는 것이 바람직하다.In addition, it is preferable that the injection hose 18 is stably wound so that slip is generated on the outer circumferential surface of the exhaust gas recycling valve 20 so as not to be released.
또한, 상기 분사호스(18)와 배기가스 재활용 밸브(20)의 접촉면적이 가능한 한 넓게 형성되도록 분사호스(18) 또는 배기가스 재활용 밸브(20)의 외측에 소정 높이로 돌출된 돌기(도시하지 않음)가 형성되는 것이 바람직하다. In addition, a protrusion (not shown) protruding outside the injection hose 18 or the exhaust gas recycling valve 20 to a predetermined height so that the contact area between the injection hose 18 and the exhaust gas recycling valve 20 is formed as wide as possible. Not formed).
상기와 같이 온수로 가열된 와셔액은 분사노즐(15)을 통해 윈드실드글래스의 전면에 분사된다.The washer solution heated with hot water as described above is sprayed on the front surface of the windshield glass through the injection nozzle 15.
따라서, 동절기 아침에 윈드실드글래스의 전면에 낀 서리나 얼어붙은 눈을 제거하려 할 경우 운전자가 엔진시동을 온(ON)시켜 배기가스 재활용 밸브(20)를 가열시킴에 따라 펌프(17)에 의해 와셔탱크(16)에서 분사호스(18)로 펌핑되는 와셔액도 가열되며, 가열된 와셔액은 조인트(19)에서 분기되어 각각의 분사노즐(15)측으로 압송되어 윈드실드글래스 전면에 분사시킴으로서 서리나 얼어붙은 눈을 간단하게 제거할 수 있게 된다.Therefore, when the frost or frozen snow on the front of the windshield glass is to be removed in the winter morning, the driver turns on the engine and heats the exhaust gas recycling valve 20 so as to be washed by the pump 17. The washer fluid pumped from the tank 16 to the injection hose 18 is also heated, and the heated washer fluid is branched at the joint 19 and pumped to the respective injection nozzles 15 to inject the frost or frozen snow onto the windshield glass. Can be easily removed.
상기한 바와 같이 본 발명에 따른 차량의 와셔액 예열구조에 의하면, 펌프에 의해 분사노즐로 압송되는 와셔액은 분사호스의 배기가스 재활용 밸브의 권회에 의해 배기가스 재활용 밸브의 가열정도에 따라 온수로 가열이 됨으로써, 동절기에 윈드실드글래스에 낀 서리나 성애를 용이하게 제거할 수 있는 효과가 있다. As described above, according to the washer liquid preheating structure of the vehicle, the washer liquid pumped to the injection nozzle by the pump is heated by hot water according to the heating degree of the exhaust gas recycling valve by the winding of the exhaust gas recycling valve of the injection hose. By doing so, there is an effect that can easily remove frost and frost on the windshield glass in winter.
그리고, 와셔액이 가열되기 위한 별도의 장치가 구비되지 않아도 되기 때문에 설치비용이 저감되는 효과도 있다. In addition, since a separate device for heating the washer liquid does not have to be provided, there is an effect that the installation cost is reduced.
도 1은 종래 차량에 구비되는 와셔액 분사장치를 나타낸 사시도.1 is a perspective view showing a washer liquid injector provided in a conventional vehicle.
도 2는 본 발명에 따른 와셔액 예열구조를 나타낸 구성도.Figure 2 is a block diagram showing a washer liquid preheating structure according to the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1: 차체 2: 윈드실드글래스 1: body 2: windshield glass
3: 와이퍼 4: 본네트 3: wiper 4: bonnet
5,15: 분사노즐 6,16: 와셔탱크 5,15: spray nozzle 6,16 washer tank
7,17: 펌프 8,18: 분사호스 7,17: pump 8,18: injection hose
9,19: 조인트 20: 배기가스 재활용 밸브9,19: Joint 20: exhaust gas recycling valve
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0003112A KR100488976B1 (en) | 2003-01-16 | 2003-01-16 | washer-liquid heating structure in a car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0003112A KR100488976B1 (en) | 2003-01-16 | 2003-01-16 | washer-liquid heating structure in a car |
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| Publication Number | Publication Date |
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| KR20040065912A KR20040065912A (en) | 2004-07-23 |
| KR100488976B1 true KR100488976B1 (en) | 2005-05-11 |
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| KR10-2003-0003112A Expired - Fee Related KR100488976B1 (en) | 2003-01-16 | 2003-01-16 | washer-liquid heating structure in a car |
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| Country | Link |
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| KR (1) | KR100488976B1 (en) |
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| KR20040065912A (en) | 2004-07-23 |
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