CN1079903C - 阀针及制造阀针的方法 - Google Patents
阀针及制造阀针的方法 Download PDFInfo
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- CN1079903C CN1079903C CN97190859A CN97190859A CN1079903C CN 1079903 C CN1079903 C CN 1079903C CN 97190859 A CN97190859 A CN 97190859A CN 97190859 A CN97190859 A CN 97190859A CN 1079903 C CN1079903 C CN 1079903C
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- armature
- stud
- valve
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- connected element
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- 238000004519 manufacturing process Methods 0.000 title description 6
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000000446 fuel Substances 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract 1
- 239000013585 weight reducing agent Substances 0.000 abstract 1
- 238000005242 forging Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S239/00—Fluid sprinkling, spraying, and diffusing
- Y10S239/90—Electromagnetically actuated fuel injector having ball and seat type valve
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49298—Poppet or I.C. engine valve or valve seat making
- Y10T29/49307—Composite or hollow valve stem or head making
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
在已公开的可电磁操作阀中,其阀针除其它部件外还由一个与电枢连在一起的多角形部件组成。新的阀针能使重量降低并因此使阀更快地操作。
新的阀针具有一个带有圆形截面的连接部件(2),它的电枢头(7)通过冷变形制成并与电枢(4)焊在一起。
该阀针尤其适用于混合压缩强迫点火式内燃机的燃料喷射设备中的喷射阀。
Description
本发明涉及一种用于可电磁操作的阀的阀针及一种制造阀针的方法。
一种可电磁操作阀的阀针已由DE 4420176 A1公开,它由一个衔铁、一个连接部件和一个由该连接部件与衔铁连在一起的阀关闭元件组成。其中,连接部件由一个具有独特轮廓截面的半成品件制成。为了确保连接部件周围与衔铁内的一个连接部件伸入其内的固定孔的壁之间至少一个足够大的介质流道,连接元件具有一个垂直于其纵轴线方向相对较大的扩展尺寸,这导致阀针尺寸相对较大,而阀针尺寸较大导致由电磁引发的阀操作滞后。
本发明的目的在于,提供一种用于可电磁操作的阀的阀针,其结构简单并且可以快速地电磁操作。
本发明的目的还在于,提供一种制造上述类型阀针的方法。
根据本发明,提出了一种用于可电磁操作的阀的阀针,它具有一个阀关闭元件和一个沿一纵轴线伸展的连接部件,该连接部件的背向阀关闭元件的一端形成一个衔铁头,该衔铁头伸到衔铁的固定孔内并与衔铁连在一起,其中,在衔铁头和衔铁的固定孔的壁之间形成至少一个沿纵轴线方向伸展的流道,连接部件设置成带有圆形截面的棒形,而衔铁头具有十字形或Y形或圆缺形或者三角形或多角形、或者大致矩形的截面,该衔铁头通过冷变形加工而成,并沿垂直于纵轴线的方向具有比连接部件的圆形截面更大的扩展尺寸。
根据本发明,还提出了一种所述阀针的制造方法,该阀针用于可电磁操作的阀,它具有一个阀关闭元件和一个沿纵轴伸展的连接部件,该连接部件的背向阀关闭元件一端形成一个衔铁头,该衔铁头伸入衔铁的一个固定孔内并与衔铁连在一起,在此,在衔铁头与衔铁的固定孔壁之间形成至少一个沿纵轴方向伸展的流道,首先从一个带有圆形截面的棒形毛坯件切割出连接部件,然后在连接部件上通过冷变形加工出衔铁头,然后将衔铁插在衔铁头上并与之焊在一起。
本发明的阀针及制造阀针的方法有以下优点,即阀针以简单形式及方式构成,它具有更小的尺寸并因此可更快地由电磁操作。由一个棒形半成品件,即具有圆形截面的线材构成的连接部件,尽管由于本发明结构而具有小的直径,也使得衔铁头与衔铁之间有足够大的流道。
衔铁头的截面形状易于制造并使得有足够大的流道通过衔铁。
衔铁头的凸缘结构带来以下优点,即在凸缘与衔铁接触时,在衔铁与连接元件之间形成预先精确确定的配合。
本发明的实施例在图中被简化示出并在下面描述中被进一步解释。
图1至3各以局部截面图的形式示出了按照本发明构成的阀针的
实施例,
图4至10示出了带有衔铁的本发明阀针的俯视图。
图1示出了本发明用于可电磁操作阀、尤其是用于内燃机的燃料喷射设备的喷射阀的阀针1的第一实施例。在图1和此后各图中所示的阀针用在燃料喷射设备的喷射阀中,如DE 4420176 A1中所示及所描述阀针1由一个连接部件2、一个阀关闭元件3和一个由磁性传导材料组成的衔铁4构成。在本实施例中,阀关闭元件3设置成与连接部件2成一体的、在该连接部件2底端上的球冠形式。连接部件2由一个棒形半成品件,或者说具有圆形截面和约1.8~2.5mm直径的不锈钢线材构成。从一棒形毛坯件或线材上以预先确定的长度割取,如锯开或切断成连接部件2,在该连接部件2的背向阀关闭元件3的上端形成一个衔铁头7,该衔铁头在垂直于连接部件2的纵轴线8的方向上具有非圆形截面,该非圆形截面在垂直于纵轴线8方向上具有比此连接部件2的具有圆形截面的、位于衔铁头7与阀关闭元件3之间的区段9更大的扩展尺寸。衔铁头7通过连接部件2上端的冷变形制成。在此,连接部件2的上端被放置在一个锻模内并借助压力在不供给热情况下轴向顶锻和挤压成由锻模预先确定的形状,以便形成这样的衔铁头7,即它在冷变形之后沿垂直于纵轴线8方向比具有圆形截面的区段9具有更大的扩展尺寸。衔铁头7在冷变形时例如被加工成一种形状如图4所示具有Y形截面。按照图1和图4所示,具有Y形截面的衔铁头7垂直于纵轴线8方向具有三个横档12,它们在衔铁头上彼此间隔约120°,且它们之间在衔铁头上各限制出一个弧形凹曲13。衔铁头7这样伸入衔铁4的固定孔14内,即横档12的圆弧形圆周接触固定孔14的壁,且在每个凹曲13和固定孔14的壁之间各形成一个沿纵轴线8方向穿过衔铁4的流道15,介质借助该流道可沿箭头18方向流动。从衔铁头7的一个端面19开始,在横档12和凹曲13上设有倒棱20,它们沿通向阀关闭元件3的方向向外倾斜延伸并从而使衔铁头7易于插入固定孔14和使介质易于流入流道15内。在衔铁头7冷变形后作为被完全硬化的连接部件2在横档12的朝向阀关闭元件3的一侧通过焊接23,如借助激光与衔铁连在一起。衔铁头7仅仅伸入衔铁4的固定孔14如此远,即衔铁头7的端面19位于固定孔14内。由此,一个伸入固定孔14内并被支承在端面19上的喷射阀回位弹簧26的朝向阀针1的一端被引入衔铁4内。
在后面的图示中,用同样的代码表示相同的及具有相同作用的部件。图2中所示本发明阀针1的第二实施例与图1所示第一实施例的区别一方面在于,作为独立部分的阀关闭元件3设置成被削平的球的形式并用其削平的面靠置在连接部件2的背向衔铁头7的端面24上并与之焊在一起,另一方面在于,衔铁头7朝向阀关闭元件3设置成一个凸缘25,它连同伸入衔铁4的衔铁头7一起定位在衔铁4的定位槽28内并与衔铁焊在一起。连接部件2例如由奥氏体或铁氧体的铬钢组成。
在图3所示的本发明阀针1的第三实施例中,衔铁头7的凸缘25靠置在衔铁4的底端面29上并与之焊在一起。
图5至10示出了衔铁头7的其它不同截面形式。在图5所示实施例中,衔铁头7垂直于纵轴线8具有带4个横档12的十字形截面并与衔铁4的固定孔14一起构成4个流道15。
在图6所示实施例中,衔铁头7具有垂直于纵轴线8的板形横截面,它带有两个彼此平行伸展的平面和两个朝向固定孔14的圆形端面并构成两个流道15。
图7示出了衔铁头7垂直于纵轴线8的截面,其中,从半圆形截面中部伸出一个横档12并形成两个流道15。在图8中,衔铁头7垂直于纵轴线8仅仅具有一个半圆形截面并与衔铁4一起围成一个流道15。
在图9和10中,衔铁头7垂直于纵轴线8具有一个三角形或四角形截面并与衔铁4一起围成三个或四个流道15。衔铁头7也可以未示出方式在垂直于纵轴线的方向上设置成五角形或六角形。
Claims (7)
1.一种用于可电磁操作的阀的阀针,它具有一个阀关闭元件和一个沿一纵轴线伸展的连接部件,该连接部件的背向阀关闭元件的一端形成一个衔铁头,该衔铁头伸到衔铁的固定孔内并与衔铁连在一起,其中,在衔铁头和衔铁的固定孔的壁之间形成至少一个沿纵轴线方向伸展的流道,其特征是,连接部件(2)设置成带有圆形截面的棒形,而衔铁头(7)具有十字形或Y形或圆缺形或者三角形或多角形、或者大致矩形的截面,该衔铁头通过冷变形加工而成,并沿垂直于纵轴线(8)的方向具有比连接部件(2)的圆形截面更大的扩展尺寸。
2.按照权利要求1所述的阀针,其特征是,在衔铁头(7)上朝向阀关闭元件(3)设有一个凸缘(25),它沿垂直于纵轴线(8)方向具有比固定孔(14)更大的延伸尺寸,并靠置在衔铁(4)上。
3.按照权利要求1或2所述的阀针,其特征是,衔铁(4)和衔铁头(7)通过焊接(23)相互连接。
4.按照权利要求1所述的阀针,其特征是,阀关闭元件(3)通过焊接与连接部件(2)连接。
5.按照权利要求1所述的阀针,其特征是,该可电磁操作的阀是内燃机中燃料喷射设备的喷射阀。
6.一种用于制造权利要求1所述阀针的方法,该阀针用于可电磁操作的阀,它具有一个阀关闭元件和一个沿纵轴伸展的连接部件,该连接部件的背向阀关闭元件一端形成一个衔铁头,该衔铁头伸入衔铁的一个固定孔内并与衔铁连在一起,在此,在衔铁头与衔铁的固定孔壁之间形成至少一个沿纵轴方向伸展的流道,其特征是,首先从一个带有圆形截面的棒形毛坯件切割出连接部件(2),然后在连接部件(2)上通过冷变形加工出衔铁头(7),然后将衔铁(4)插在衔铁头(7)上并与之焊在一起。
7.按照权利要求6所述的方法,其特征是,该方法是用于制造内燃机燃料喷射设备的喷射阀中的阀针的方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19627939A DE19627939C1 (de) | 1996-07-11 | 1996-07-11 | Ventilnadel und Verfahren zur Herstellung einer Ventilnadel |
DE19627939.9 | 1996-07-11 |
Publications (2)
Publication Number | Publication Date |
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CN1197501A CN1197501A (zh) | 1998-10-28 |
CN1079903C true CN1079903C (zh) | 2002-02-27 |
Family
ID=7799541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN97190859A Expired - Fee Related CN1079903C (zh) | 1996-07-11 | 1997-02-28 | 阀针及制造阀针的方法 |
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Country | Link |
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US (1) | US5992018A (zh) |
EP (1) | EP0850357B1 (zh) |
JP (1) | JPH11514718A (zh) |
CN (1) | CN1079903C (zh) |
BR (1) | BR9706534A (zh) |
DE (2) | DE19627939C1 (zh) |
RU (1) | RU2172423C2 (zh) |
WO (1) | WO1998002657A1 (zh) |
Families Citing this family (13)
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DE19712589C1 (de) * | 1997-03-26 | 1998-06-04 | Bosch Gmbh Robert | Brennstoffeinspritzventil und Verfahren zur Herstellung einer Ventilnadel eines Brennstoffeinspritzventils |
EP1082536B1 (en) * | 1998-05-27 | 2004-04-21 | Siemens VDO Automotive Corporation | Compressed natural gas injector having improved low noise valve needle |
US6328231B1 (en) | 1998-05-27 | 2001-12-11 | Siemens Automotive Corporation | Compressed natural gas injector having improved low noise valve needle |
US6422486B1 (en) | 2000-03-31 | 2002-07-23 | Siemens Automotive Corporation | Armature/needle assembly for a fuel injector and method of manufacturing same |
US6409101B1 (en) | 2000-06-30 | 2002-06-25 | Siemens Automotive Corporation | Hollow oversized telescopic needle with armature |
DE10143500A1 (de) * | 2001-09-05 | 2003-03-20 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE102008061397A1 (de) * | 2008-12-10 | 2010-06-17 | Schaeffler Kg | Betätigungselement einer elektromagnetischen Stelleinheit eines Hydraulikventils |
US8006661B2 (en) * | 2009-08-04 | 2011-08-30 | International Engine Intellectual Property Company, Llc | Bridge and pivot foot arrangement for operating engine cylinder valves |
CN103807492A (zh) * | 2012-11-09 | 2014-05-21 | 江苏思源赫兹互感器有限公司 | 一种高压电器设备专用注放油阀 |
EP2803850A1 (en) * | 2013-05-16 | 2014-11-19 | Continental Automotive GmbH | Valve needle for a fluid injector, valve needle assembly, valve assembly and fuel injector |
JP2020070782A (ja) * | 2018-11-02 | 2020-05-07 | 富士電機株式会社 | エジェクタ |
US11530629B2 (en) * | 2020-06-26 | 2022-12-20 | GM Global Technology Operations LLC | Method to attach copper alloy valve inserts to aluminum cylinder head |
GB2613820C (en) * | 2021-12-15 | 2024-05-15 | Delphi Tech Ip Ltd | Method for producing a pintle for a fuel injector |
Citations (1)
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DE4420176A1 (de) * | 1994-06-09 | 1995-12-14 | Bosch Gmbh Robert | Ventilnadel für ein elektromagnetisch betätigbares Ventil |
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US3669407A (en) * | 1967-11-20 | 1972-06-13 | Weatherhead Co | Valve stem |
DE3705805A1 (de) * | 1987-02-24 | 1988-09-01 | Vdo Schindling | Verfahren zum verbinden eines ankers mit einer ventilnadel sowie nach diesem verfahren hergestelltes kraftstoffeinspritzventil |
IT212429Z2 (it) * | 1987-08-25 | 1989-07-04 | Weber Srl | Elettrovalvola veloce particolarmente valvola pilota di iniezione del combustibile per motori a ciclo diesel |
DE3914486A1 (de) * | 1989-05-02 | 1990-11-08 | Bosch Gmbh Robert | Verfahren zur herstellung einer ventilnadel und ventilnadel |
DE4008675A1 (de) * | 1990-03-17 | 1991-09-19 | Bosch Gmbh Robert | Elektromagnetisch betaetigbares ventil |
JP3085008B2 (ja) * | 1993-03-12 | 2000-09-04 | 株式会社デンソー | 流体噴射弁 |
US5299776A (en) * | 1993-03-26 | 1994-04-05 | Siemens Automotive L.P. | Impact dampened armature and needle valve assembly |
CN1049951C (zh) * | 1993-12-09 | 2000-03-01 | 罗伯特·博施有限公司 | 电磁操纵阀 |
JPH07279796A (ja) * | 1994-02-16 | 1995-10-27 | Nippondenso Co Ltd | 流体噴射ノズルおよびその製造方法 |
DE4426006A1 (de) * | 1994-07-22 | 1996-01-25 | Bosch Gmbh Robert | Ventilnadel für ein elektromagnetisch betätigbares Ventil und Verfahren zur Herstellung |
JPH0874699A (ja) * | 1994-09-09 | 1996-03-19 | Zexel Corp | 燃料噴射弁 |
US5775600A (en) * | 1996-07-31 | 1998-07-07 | Wildeson; Ray | Method and fuel injector enabling precision setting of valve lift |
-
1996
- 1996-07-11 DE DE19627939A patent/DE19627939C1/de not_active Expired - Fee Related
-
1997
- 1997-02-28 US US09/029,964 patent/US5992018A/en not_active Expired - Fee Related
- 1997-02-28 RU RU98107330/06A patent/RU2172423C2/ru not_active IP Right Cessation
- 1997-02-28 CN CN97190859A patent/CN1079903C/zh not_active Expired - Fee Related
- 1997-02-28 WO PCT/DE1997/000364 patent/WO1998002657A1/de not_active Application Discontinuation
- 1997-02-28 EP EP97915317A patent/EP0850357B1/de not_active Expired - Lifetime
- 1997-02-28 BR BR9706534A patent/BR9706534A/pt not_active IP Right Cessation
- 1997-02-28 JP JP10505491A patent/JPH11514718A/ja active Pending
- 1997-02-28 DE DE59703857T patent/DE59703857D1/de not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4420176A1 (de) * | 1994-06-09 | 1995-12-14 | Bosch Gmbh Robert | Ventilnadel für ein elektromagnetisch betätigbares Ventil |
Also Published As
Publication number | Publication date |
---|---|
RU2172423C2 (ru) | 2001-08-20 |
DE59703857D1 (de) | 2001-07-26 |
BR9706534A (pt) | 1999-07-20 |
EP0850357B1 (de) | 2001-06-20 |
WO1998002657A1 (de) | 1998-01-22 |
EP0850357A1 (de) | 1998-07-01 |
DE19627939C1 (de) | 1997-03-20 |
CN1197501A (zh) | 1998-10-28 |
US5992018A (en) | 1999-11-30 |
JPH11514718A (ja) | 1999-12-14 |
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