KR100539602B1 - Lubrication oil passage structure of internal combustion engine - Google Patents
Lubrication oil passage structure of internal combustion engine Download PDFInfo
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- KR100539602B1 KR100539602B1 KR10-2004-7002764A KR20047002764A KR100539602B1 KR 100539602 B1 KR100539602 B1 KR 100539602B1 KR 20047002764 A KR20047002764 A KR 20047002764A KR 100539602 B1 KR100539602 B1 KR 100539602B1
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- lubricating oil
- jet
- oil passage
- internal combustion
- combustion engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
- F01M2001/083—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
- F01M2001/086—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating gudgeon pins
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
윤활유 통로(21)를 흐르는 가압 윤활유를, 거기에 설치한 제트(jet)(25)를 통해서 피윤활부에 분사하도록 한 내연기관의 윤활유 통로구조에 있어서, 제트(25)의 입구쪽을, 윤활유 통로(21)쪽으로 개방해서 그 제트(25)의 중심에서 지름 방향으로 연장하는 십자(十字)형상의 기름홈(26)을 설치했다. 이것에 의해, 내연기관의 윤활유통로의 적당한 곳에 설치되는 제트의 입구가, 그 윤활유 통로를 흐르는 윤활유중에 혼입(混入)되는 먼지나, 금속부스러기등에 의해 막히는 일이 없도록 할 수 있다.In the lubricating oil passage structure of the internal combustion engine in which the pressurized lubricating oil flowing through the lubricating oil passage 21 is injected into the lubrication target part through a jet 25 provided therein, the inlet side of the jet 25 is lubricating oil. An oil groove 26 in the shape of a cross that opens to the passage 21 and extends in the radial direction from the center of the jet 25 is provided. Thereby, the inlet of the jet provided in the suitable place of the lubrication flow path of an internal combustion engine can be prevented from being clogged by the dust mixed in the lubricating oil which flows through the lubricating oil path, metal debris, etc.
Description
본 발명은, 내연기관의 피윤활부에 윤활유를 공급하는 내연기관의 윤활유 통로구조에 관한 것이다.The present invention relates to a lubricating oil passage structure of an internal combustion engine for supplying lubricating oil to a lubrication target portion of an internal combustion engine.
일반으로 내연기관에서는, 그 원활한 운전을 보장하기 위해, 그 회전, 미끄럼부분등의 피윤활부에 가압 윤활유를 공급하기 위한 윤활유 통로가 설치되고, 또한, 그 윤활유 통로의 적당한 곳에는 스로틀(throttle) 통로, 즉 제트(jet)를 연통해서 설치하여, 상기 윤활유 통로를 흐르는 가압 윤활유를 상기 제트를 통해서 분사하고, 예를 들면, 이 분사 윤활유를 피스톤의 뒤쪽부에 공급하여, 피스톤의 윤활과 냉각에 제공하는 것이 실행되고 있다(예를 들면, 일본 특개평9-209733호 공보참조).Generally, in an internal combustion engine, in order to ensure the smooth operation, a lubricating oil passage for supplying pressurized lubricating oil to the lubrication targets such as its rotation and sliding portions is provided, and a throttle is provided at a suitable place of the lubricating oil passage. A passage, that is, a jet is provided in communication with each other, and pressurized lubricating oil flowing through the lubricating oil passage is injected through the jet. Providing is carried out (for example, see Japanese Patent Application Laid-Open No. 9-209733).
그런데, 윤활유 통로에는, 오일필터(oil filter)에 의해 여과(濾過)된 윤활유가 흐른다해도, 그 윤활유안에는, 다소의 먼지나, 금속부스러기등의 이물(異物)이 혼입하는 것을 피할 수 없고, 이 이물이 윤활유 통로에 설치한 스로틀 통로, 즉 제트의 입구에 도달하여, 거기를 막는 일이 있으며, 이와 같은 경우에는, 제트에 의해 분사되는 윤활유 기름량이나 분사압을 감해버린다고 하는 문제가 있다.By the way, even if the lubricating oil filtered by the oil filter flows in a lubricating oil path, it is inevitable that some dirt and foreign substances, such as metal debris, will mix in the lubricating oil. Foreign matter may reach the throttle passage provided in the lubricating oil passage, i.e., the inlet of the jet, and block it. In such a case, there is a problem that the amount of lubricating oil injected by the jet and the injection pressure are reduced.
도 1은 본 발명의 윤활유 통로구조를 구비한 내연기관의 주요부분의 단면도.1 is a cross-sectional view of an essential part of an internal combustion engine having a lubricating oil passage structure of the present invention.
도 2는 도 1의 2선 화살표방향에서 본 부분 확대도.FIG. 2 is an enlarged view of a portion viewed from the direction of the arrow 2 in FIG. 1; FIG.
도 3은 도 2의 3선 화살표방향에서 본 부분도.3 is a fragmentary view seen from the direction of the three-line arrow in FIG.
본 발명은 이러한 실정을 감안해서 이루어진 것으로써, 상기 이물에 의해 제트의 입구쪽이 막히는 일이 없도록 한 신규한 내연기관의 윤활유 통로구조를 제공하는 것을 목적으로 하는 것이다.This invention is made | formed in view of such a situation, and an object of this invention is to provide the lubricating oil passage structure of the novel internal combustion engine which prevented the inlet side of a jet from being blocked by the said foreign material.
상기 목적을 달성하기 위해, 본 발명은, 오일펌프에 줄지어 있는 윤활유 통로의 적당한 곳에 제트를 설치하여, 윤활유 통로를 흐르는 가압 윤활유를 제트를 통과해서 피윤활부를 향해서 분사하도록 한 내연기관의 윤활유 통로구조에 있어서, 상기 제트의 입구쪽에는, 상기 윤활유 통로를 개방해서 그 제트의 중심에서 지름방향으로 연장하는 기름홈을, 그 제트에 연통시켜서 설치한 것을 특징으로 하고 있으며, 이와 같은 특징에 따르면, 제트의 입구쪽이, 윤활유중에 혼입하는 먼지나, 금속부스러기등의 이물에 의해 막히는 것이 방지되며, 그 제트에 의해 항상 적당량(適當量), 적당압(壓)의 윤활유를 분사할 수 있다.In order to achieve the above object, the present invention provides a lubricating oil passage of an internal combustion engine in which a jet is provided at a suitable place of a lubricating oil passage lined with an oil pump so that the pressurized lubricating oil flowing through the lubricating oil passage passes through the jet and jets toward the lubrication target. In the structure, at the inlet of the jet, an oil groove extending radially from the center of the jet by opening the lubricating oil passage is provided in communication with the jet. The inlet side of the jet is prevented from being clogged by foreign matter, such as dust or metal debris, which is mixed in the lubricant, and the jet can always inject an appropriate amount of lubricant at an appropriate amount.
또한, 상기 구성에 더해서, 상기 기름홈은, 상기 제트를 중심으로 해서, 그 지름방향으로 연장하는 십자홈인 것을 특징으로 하고 있으며, 이와 같은 특징에 따르면, 제트의 입구쪽이, 윤활유중에 혼입하는 먼지나, 금속부스러기등의 이물에 의해 막히는 것이 한층 확실하게 방지되어, 그 제트에 의해 항상 적당량, 적당압의 윤활유를 분사할 수 있다.In addition to the above configuration, the oil groove is characterized by being a cross groove extending in the radial direction centering on the jet. According to such a feature, the inlet side of the jet is incorporated into the lubricating oil. Clogging by foreign matter such as dust or metal chips is more reliably prevented, and the jet can always inject an appropriate amount of lubricating oil at an appropriate amount.
이하, 본 발명의 실시형태를, 첨부 도면에 나타낸 본 발명의 실시예에 의거해서 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on the Example of this invention shown to an accompanying drawing.
우선, 도 1∼3을 참조하여, 본 발명의 일실시예에 대해서 설명한다.First, an embodiment of the present invention will be described with reference to FIGS.
도 1에 있어서, 4사이클 내연기관의 기관본체(E)는, 실린더 보어(2)를 설치한 실린더 블록(1)과, 이 실린더 블록(1)의 덱(dech)면상에 고정되어, 실린더 보어(2)와 대면하는 연소실(4)을 형성한 실린더 헤드(3)와, 실린더 블록(1)의 하면에 고정되는 크랭크 케이스(5)를 구비하고 있으며, 이 크랭크 케이스(5)의 하면에 오일팬(oil pan)(6)이 고정된다.In FIG. 1, the engine body E of a 4-cycle internal combustion engine is fixed to the cylinder block 1 which provided the cylinder bore 2, and the deck surface of this cylinder block 1, and is a cylinder bore. And a crankcase 5 fixed to the lower surface of the cylinder block 1, and a cylinder head 3 having a combustion chamber 4 facing the 2, and having oil on the lower surface of the crankcase 5. An oil pan 6 is fixed.
통상(通常)과 같이, 크랭크 케이스(5)안에는 크랭크 샤프트(7)가 볼베어링(8)을 통해서 회전이 자유롭게 지지되고, 상기 크랭크 샤프트(7)의 크랭크 핀(7a)에는, 연결봉(10)의 큰 단부(端部)가 니들 베어링(11)을 통해서 회전이 자유롭게 연결되며, 이 연결봉(10)의 작은 단부는 실린더 보어(2)안을 미끄럼 자유롭게 감합(嵌合)되는 피스톤(12)의 피스톤 핀(13)에 회전이 자유롭게 연결되어 있다.As usual, the crankshaft 7 is freely supported by the ball bearing 8 in the crankcase 5, and the crank pin 7a of the crankshaft 7 is connected to the crank pin 7a of the connecting rod 10. A large end is connected freely by rotation through the needle bearing 11, and the small end of the connecting rod 10 is a piston pin of the piston 12 which is freely fitted into the cylinder bore 2. Rotation is freely connected to (13).
상기 기관본체(E)에는, 그 가동(可動) 각 부분을 윤활하기 위한 윤활계(潤滑系)(L)가 설치된다. 이 윤활계(L)는 종래 공지의 구성으로써, 그 윤활계(L)에 접속되는 오일 펌프(15)의 흡입구에 접속되는 흡입 통로(16)의 하단(下端)은, 오일 팬(6)안에 저류(貯留)되는 윤활유에 침지(浸漬)되는 오일 여과기(17)에 접속된다. 또한, 오일 펌프(15)의 토출구(吐出口)에 접속되는 토출통로(18)는, 실린더 블록(1)에 형성되는 윤활유 통로로서의 메인 갤러리(gallery)(21)에 연통되어 있다.The engine main body E is provided with a lubrication system L for lubricating each movable part thereof. The lubrication system L has a conventionally known configuration, and the lower end of the suction passage 16 connected to the suction port of the oil pump 15 connected to the lubrication system L is stored in the oil pan 6. I) connected to an oil filter 17 immersed in lubricating oil. In addition, the discharge passage 18 connected to the discharge port of the oil pump 15 communicates with a main gallery 21 serving as a lubricating oil passage formed in the cylinder block 1.
상기 메인 갤러리(21)의 도중(途中)에는, 크랭크 케이스(5)에 형성된 피스톤용 윤활유 통로(24)가 연통되어 있고, 이 통로(24)의 실린더 보어(2)에 대면하는 벽부분(24a)에는, 제트(25)가 개구(開口)되며, 이 제트(25)의 입구는 피스톤용 윤활유 통로(24)에 연통되며, 또한, 그 분사 출구는 실린더 보어(2)안의 비스톤(12)의 뒤쪽부를 향해서 지향(指向)되어 있다.In the middle of the main gallery 21, a piston lubricating oil passage 24 formed in the crankcase 5 communicates with the wall portion 24a facing the cylinder bore 2 of the passage 24. The jet 25 is opened, and the inlet of the jet 25 communicates with the lubricating oil passage 24 for the piston, and the injection outlet of the jet 25 is located in the piston 12 in the cylinder bore 2. It is oriented toward the back.
도 2, 도 3에 명료하게 나타낸 바와 같이 상기 제트(25)의 입구쪽에는, 본 발명에 관한 기름홈(26)이, 상기 제트(25)의 입구쪽으로 연통해서 설치되었으며, 이 기름홈(26)은, 도 3에 나타낸 바와 같이 제트(25)를 중심으로 하여, 그 지름방향으로 십자형상으로 연장되어 있고, 이 십자형상의 기름홈(26)의 피스톤용 윤활유 통로(24)와 대면하는 쪽은, 이 비스톤용 윤활유 통로(24)에 그 대략 전역(全域)에 걸쳐 개방되어 있다.As clearly shown in FIGS. 2 and 3, an oil groove 26 according to the present invention is provided at an inlet side of the jet 25 in communication with an inlet side of the jet 25. As shown in Fig. 3, the center of the jet 25 extends crosswise in the radial direction, and the side facing the piston lubricating oil passage 24 of the cross-shaped oil groove 26 The lubricating oil passage 24 for the non-stone is open over its entire region.
또한, 도 1 중(中) 28은, 크랭크 샤프트(7)에 형성한 윤활유 통로, 29는, 크랭크 샤프트(7)에 연동(連動)해서 도시하지 않는 밸브작동기구를 작동하는 타이밍 전동장치, 30은, 오일펌프 구동용 기어, 31은 트랜스미션에 줄지어 있는 클러치 구동용 기어이다.1, 28 is a lubricating oil passage formed in the crankshaft 7, 29 is a timing transmission device which works with the crankshaft 7 and operates the valve operating mechanism which is not shown in figure 30, Silver, an oil pump drive gear, and 31 are clutch drive gears lining the transmission.
그 다음에, 이 실시예의 작용에 대해서 설명하면, 이제, 내연기관의 운전에 의해 크랭크 샤프트(7)가 회전되어서, 오일 펌프(15)가 구동되면, 오일 팬(6)안의 윤활유는 오일 여과기(17)를 지나서 흡인(吸引)되어, 실린더 블록(1)에 형성한 윤활유 통로로서의 메인 갤러리(21)에 압송(壓送)된다.Next, the operation of this embodiment will be described. Now, when the crankshaft 7 is rotated by the operation of the internal combustion engine, and the oil pump 15 is driven, the lubricating oil in the oil pan 6 is the oil filter ( It is sucked past 17 and is fed to the main gallery 21 as a lubricating oil passage formed in the cylinder block 1.
상기 메인 갤러리(21)안을 흐르는 가압 윤활유의 일부는, 피스톤용 윤활유 통로(24)에 공급된다. 그리고 상기 윤활유 통로(24)에 도달한 윤활유는, 피스톤(12)의 뒤쪽부로 지향시킨 제트(25)로부터 도 1, 도 2의 화살표(a)에 나타낸 바와 같이 분사되어서, 피스톤(12)의 뒤쪽부에 공급되고, 이 피스톤(12)이나 실린더 보어(2)의 내벽면을 윤활하는 동시에 그것들을 냉각한다.A part of the pressurized lubricating oil flowing in the main gallery 21 is supplied to the lubricating oil passage 24 for the piston. And the lubricating oil which reached | attained the said lubricating oil passage 24 is injected from the jet 25 which was directed to the rear part of the piston 12, as shown by the arrow (a) of FIG. 1, FIG. It supplies to the part, and lubricates the inner wall surface of this piston 12 and the cylinder bore 2, and cools them.
그런데, 메인 갤러리(21)를 흐르는 윤활유는, 오일 여과기(17)에 의해 여과되지만, 미세한 먼지나 금속부스러기등의 이물(異物)(R)의 일부는 여과되지 않고, 메인 갤러리(21)로부터 피스톤용 윤활유 통로(24)에 도달하는 것이 있어, 이 이물(R)은 도 2에 가상선(假想線)으로 나타낸 바와 같이 지름이 작은 제트(25)의 입구쪽의 중심부분을 막는 일이 있지만, 이와 같은 경우에, 이 실시예에서는, 제트(25)의 입구쪽, 거기에 연통되어서, 피스톤용 윤활유 통로(24)쪽으로 개방하는 십자형상의 기름홈(26)이 지름방향으로 설치되어 있으므로, 피스톤용 윤활유 통로(24)안의 가압 윤활유는, 도 2에 가상 화살표(b)로 나타낸 바와 같이, 상기 십자형상의 기름홈(26)을 지나서 제트(25)에로 압송되어, 여기서부터 피스톤(12)의 뒤쪽부를 향해서 분사시킬 수 있다.By the way, although the lubricating oil which flows through the main gallery 21 is filtered by the oil filter 17, a part of foreign material R, such as a fine dust and metal shavings, is not filtered, but a piston from the main gallery 21 is carried out. It may reach the lubricating oil passage 24, and this foreign material R may block the central portion of the inlet side of the small diameter jet 25 as shown by an imaginary line in FIG. In such a case, in this embodiment, since the cross-shaped oil groove 26 communicating with the inlet side of the jet 25 and opening toward the lubricating oil passage 24 for the piston is provided in the radial direction, The pressurized lubricating oil in the lubricating oil passage 24 is fed to the jet 25 via the cross oil groove 26 as shown by the imaginary arrow b in FIG. 2, from which the rear part of the piston 12 is moved. It can be sprayed toward.
이상, 본 발명의 실시예에 대해서 설명했지만, 본 발명은 그 실시예에 한정되는 일 없이, 본 발명의 특허청구의 범위내에서 여러가지 실시예가 가능하다. 예를 들면, 상기 실시예에서는, 제트(25)의 입구쪽으로 설치되는 기름 통로에는, 제트(25)의 중심에서 지름방향으로 4개의 기름홈(26)이 십자형상으로 형성되어 있지만, 이것에 대신해서 제트(25)의 중심에서 지름방향으로 1∼3개 또는 5개 이상의 기름홈을 형성하도록 해도 좋다. 또한, 상기 실시예에서는, 본 발명에 관한 윤활유 통로구조를 피스톤의 뒤쪽부로 지향(指向)하는 제트에 실시했을 경우를 설명했지만, 이것을 윤활유 통로에 설치하는 다른 제트에도 실시할 수 있는 것은 물론이다.As mentioned above, although the Example of this invention was described, this invention is not limited to the Example, A various Example is possible within the Claim of this invention. For example, in the above embodiment, four oil grooves 26 are formed crosswise in the radial direction from the center of the jet 25 in the oil passage provided toward the inlet of the jet 25. Thus, one to three or five or more oil grooves may be formed in the radial direction at the center of the jet 25. Moreover, although the said Example demonstrated the case where the lubricating oil passage structure which concerns on this invention was performed to the jet which orients to the back part of a piston, it can be carried out also to other jet provided in the lubricating oil passage.
Claims (2)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2001-00267586 | 2001-09-04 | ||
JP2001267586A JP4537629B2 (en) | 2001-09-04 | 2001-09-04 | Lubricating oil passage structure of internal combustion engine |
PCT/JP2002/008677 WO2003023198A1 (en) | 2001-09-04 | 2002-08-28 | Lubrication oil passage structure of internal combustion engine |
Publications (2)
Publication Number | Publication Date |
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KR20040029035A KR20040029035A (en) | 2004-04-03 |
KR100539602B1 true KR100539602B1 (en) | 2005-12-28 |
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KR10-2004-7002764A KR100539602B1 (en) | 2001-09-04 | 2002-08-28 | Lubrication oil passage structure of internal combustion engine |
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EP (1) | EP1424470B1 (en) |
JP (1) | JP4537629B2 (en) |
KR (1) | KR100539602B1 (en) |
CN (1) | CN1277044C (en) |
AR (1) | AR036397A1 (en) |
BR (1) | BR0205965B1 (en) |
ES (1) | ES2302837T3 (en) |
MY (1) | MY129090A (en) |
WO (1) | WO2003023198A1 (en) |
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DE102007058796A1 (en) * | 2007-12-06 | 2009-06-10 | GM Global Technology Operations, Inc., Detroit | Automotive engine has an oil-way with a cross section that diverges to an outlet |
CN103104376B (en) * | 2013-02-06 | 2015-06-10 | 苏州科瓴精密机械科技有限公司 | Carburetor seat of engine |
CN103114943B (en) * | 2013-02-26 | 2015-08-12 | 苏州科瓴精密机械科技有限公司 | The carburetor seat of motor |
JP6056090B2 (en) * | 2013-02-28 | 2017-01-11 | 本田技研工業株式会社 | Lubricating oil supply structure in vehicle internal combustion engine |
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JPS52168136U (en) * | 1976-06-14 | 1977-12-20 | ||
JPS54164328U (en) * | 1978-05-11 | 1979-11-17 | ||
JPH01103727U (en) * | 1987-12-28 | 1989-07-13 | ||
JPH041408A (en) * | 1990-04-13 | 1992-01-06 | Yanmar Diesel Engine Co Ltd | Forcibly oiling mechanism of gasoline engine |
DE4323262A1 (en) * | 1993-07-12 | 1995-01-26 | Fev Motorentech Gmbh & Co Kg | Method and arrangement for supplying lubricant to a reciprocating piston machine |
JPH0968042A (en) * | 1995-08-31 | 1997-03-11 | Suzuki Motor Corp | Oil injection device for four-cycle engine |
JP2000087717A (en) * | 1998-09-12 | 2000-03-28 | Honda Motor Co Ltd | Structure of crankshaft peripheral parts for 4-cycle engine |
JP3975064B2 (en) * | 2001-08-31 | 2007-09-12 | 本田技研工業株式会社 | Piston cooling device for multi-cylinder engine |
-
2001
- 2001-09-04 JP JP2001267586A patent/JP4537629B2/en not_active Expired - Fee Related
-
2002
- 2002-08-28 BR BRPI0205965-7A patent/BR0205965B1/en not_active IP Right Cessation
- 2002-08-28 ES ES02762893T patent/ES2302837T3/en not_active Expired - Lifetime
- 2002-08-28 WO PCT/JP2002/008677 patent/WO2003023198A1/en active IP Right Grant
- 2002-08-28 CN CNB028170547A patent/CN1277044C/en not_active Expired - Fee Related
- 2002-08-28 KR KR10-2004-7002764A patent/KR100539602B1/en not_active IP Right Cessation
- 2002-08-28 EP EP02762893A patent/EP1424470B1/en not_active Expired - Fee Related
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CN1277044C (en) | 2006-09-27 |
WO2003023198A1 (en) | 2003-03-20 |
BR0205965B1 (en) | 2011-03-09 |
JP4537629B2 (en) | 2010-09-01 |
KR20040029035A (en) | 2004-04-03 |
MY129090A (en) | 2007-03-30 |
BR0205965A (en) | 2003-10-07 |
EP1424470B1 (en) | 2008-03-19 |
ES2302837T3 (en) | 2008-08-01 |
EP1424470A1 (en) | 2004-06-02 |
EP1424470A4 (en) | 2007-02-14 |
AR036397A1 (en) | 2004-09-08 |
JP2003074322A (en) | 2003-03-12 |
CN1549889A (en) | 2004-11-24 |
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