DE69731241D1 - Hochdruckpumpe für Dieselmotor-Kraftstoffeinspritzsystem - Google Patents
Hochdruckpumpe für Dieselmotor-KraftstoffeinspritzsystemInfo
- Publication number
- DE69731241D1 DE69731241D1 DE1997631241 DE69731241T DE69731241D1 DE 69731241 D1 DE69731241 D1 DE 69731241D1 DE 1997631241 DE1997631241 DE 1997631241 DE 69731241 T DE69731241 T DE 69731241T DE 69731241 D1 DE69731241 D1 DE 69731241D1
- Authority
- DE
- Germany
- Prior art keywords
- high pressure
- fuel injection
- diesel engine
- pressure pump
- injection system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 title 1
- 238000002347 injection Methods 0.000 title 1
- 239000007924 injection Substances 0.000 title 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
- F02M59/06—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
- F02M59/367—Pump inlet valves of the check valve type being open when actuated
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19565396 | 1996-07-05 | ||
JP19565396 | 1996-07-05 | ||
JP32105196 | 1996-11-14 | ||
JP32105196A JP3334525B2 (ja) | 1996-11-14 | 1996-11-14 | 可変吐出量高圧ポンプおよびそれを用いた燃料噴射装置 |
JP10093997 | 1997-04-03 | ||
JP10093997A JP3581861B2 (ja) | 1996-07-05 | 1997-04-03 | 高圧供給ポンプ |
JP12793797 | 1997-04-30 | ||
JP12793797A JP3693463B2 (ja) | 1997-04-30 | 1997-04-30 | 可変吐出量高圧ポンプ |
JP15023297A JPH10318087A (ja) | 1997-05-22 | 1997-05-22 | 可変吐出量高圧ポンプ |
JP15023297 | 1997-05-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69731241D1 true DE69731241D1 (de) | 2004-11-18 |
DE69731241T2 DE69731241T2 (de) | 2006-03-02 |
Family
ID=27526028
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69731241T Expired - Lifetime DE69731241T2 (de) | 1996-07-05 | 1997-07-02 | Hochdruckpumpe für Dieselmotor-Kraftstoffeinspritzsystem |
DE69720603T Expired - Lifetime DE69720603T2 (de) | 1996-07-05 | 1997-07-02 | Hochdruckpumpe |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69720603T Expired - Lifetime DE69720603T2 (de) | 1996-07-05 | 1997-07-02 | Hochdruckpumpe |
Country Status (3)
Country | Link |
---|---|
US (1) | US6016790A (de) |
EP (2) | EP0816672B1 (de) |
DE (2) | DE69731241T2 (de) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29800346U1 (de) * | 1998-01-12 | 1999-05-12 | Robert Bosch Gmbh, 70469 Stuttgart | Schaltmagnet |
JP2001515566A (ja) * | 1998-01-15 | 2001-09-18 | スタナダイン オートモーティヴ コーポレイション | エンジンに装着された駆動軸受を有する液圧ポンプ |
GB9804113D0 (en) * | 1998-02-27 | 1998-04-22 | Lucas Ind Plc | Fuel pump |
EP0964150B1 (de) * | 1998-04-15 | 2005-06-15 | Denso Corporation | Brennstoffeinspritzsystem für eine Brennkraftmaschine |
DE19860672A1 (de) * | 1998-12-29 | 2000-07-13 | Bosch Gmbh Robert | Kolbenpumpe zur Kraftstoffhochdruckerzeugung |
JP3744290B2 (ja) * | 1999-01-28 | 2006-02-08 | 株式会社デンソー | 可変吐出量高圧ポンプの制御方法 |
DE50013384D1 (de) * | 1999-11-19 | 2006-10-12 | Crt Common Rail Tech Ag | Hochdruckeinspritzsystem mit Common Rail |
US6460510B1 (en) * | 2000-05-30 | 2002-10-08 | Robert H. Breeden | Pump assembly and method |
JP2002004977A (ja) * | 2000-06-26 | 2002-01-09 | Denso Corp | 流量制御装置 |
JP2002098021A (ja) * | 2000-09-25 | 2002-04-05 | Toyota Motor Corp | 複合電磁弁、高圧ポンプおよび高圧ポンプ制御装置 |
JP2002115623A (ja) * | 2000-10-05 | 2002-04-19 | Mitsubishi Electric Corp | 可変吐出量燃料供給装置 |
DE10124238A1 (de) * | 2001-05-18 | 2002-11-28 | Bosch Gmbh Robert | Hochdruck-Kraftstoffpumpe, insbesondere für direkteinspritzende Brennkraftmaschinen, sowie Kraftstoffsystem und Brennkraftmaschine |
EP1321663A3 (de) * | 2001-12-19 | 2003-07-02 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10220281A1 (de) * | 2002-05-07 | 2003-11-27 | Bosch Gmbh Robert | Kraftstoffpumpe, insbesondere für eine Brennkraftmaschine mit Direkteinspritzung |
US6701736B1 (en) | 2002-12-31 | 2004-03-09 | Gamon Plus, Inc. | Refrigerated merchandising apparatus |
JP4078320B2 (ja) | 2004-02-27 | 2008-04-23 | 三菱重工業株式会社 | ポペット弁装置及びそれを備えた電子制御燃料噴射装置 |
US7287493B2 (en) * | 2004-11-10 | 2007-10-30 | Buck Supply Co., Inc. | Internal combustion engine with hybrid cooling system |
US7543558B2 (en) | 2004-11-10 | 2009-06-09 | Buck Diesel Engines, Inc. | Multicylinder internal combustion engine with individual cylinder assemblies |
US7287494B2 (en) * | 2004-11-10 | 2007-10-30 | Buck Supply Co., Inc. | Multicylinder internal combustion engine with individual cylinder assemblies and modular cylinder carrier |
FI118055B (fi) * | 2005-11-23 | 2007-06-15 | Waertsilae Finland Oy | Mäntämoottorin ruiskutuspumppu |
US7857605B2 (en) | 2006-06-29 | 2010-12-28 | Caterpillar Inc | Inlet throttle controlled liquid pump with cavitation damage avoidance feature |
JP4616822B2 (ja) * | 2006-11-30 | 2011-01-19 | 三菱重工業株式会社 | エンジンの燃料噴射装置及び運転方法 |
WO2008107065A1 (de) * | 2007-03-06 | 2008-09-12 | Ixetic Bad Homburg Gmbh | Pumpe mit einem magnetisch angesteuertem schaltventil zur saugdrosselung |
DE102007030832A1 (de) * | 2007-07-03 | 2009-01-08 | Robert Bosch Gmbh | Ventilgesteuerter Hydromotor |
DE102008018018A1 (de) * | 2008-04-09 | 2009-10-15 | Continental Automotive Gmbh | Pumpe zur Förderung eines Fluids |
DE102008036120B4 (de) * | 2008-08-01 | 2010-04-08 | Continental Automotive Gmbh | Verfahren zur Steuerung einer Hochdruck-Kraftstoffpumpe |
JP2010048174A (ja) * | 2008-08-21 | 2010-03-04 | Denso Corp | 内燃機関の制御装置 |
KR100992227B1 (ko) * | 2008-10-27 | 2010-11-05 | 현대중공업 주식회사 | 디젤엔진 연료분사펌프의 캐비테이션 손상방지장치 |
US8316814B2 (en) * | 2009-06-29 | 2012-11-27 | Buck Kenneth M | Toploading internal combustion engine |
DE102010001252A1 (de) * | 2010-01-27 | 2011-07-28 | Robert Bosch GmbH, 70469 | Kraftstoffeinspritzsystem mit integriertem Hochdruckspeicher an einem Zylinderkopf |
DE102010027745A1 (de) * | 2010-04-14 | 2011-10-20 | Robert Bosch Gmbh | Hochdruckpumpe |
CN102094777A (zh) * | 2011-01-27 | 2011-06-15 | 北京清博华科技有限公司 | 制备液相色谱柱塞泵 |
EP2535553B1 (de) * | 2011-06-15 | 2014-04-16 | Delphi International Operations Luxembourg S.à r.l. | Einlassventilanordnung für eine Kraftstoffpumpe |
JP5288058B1 (ja) * | 2011-09-06 | 2013-09-11 | トヨタ自動車株式会社 | 燃料ポンプおよび内燃機関の燃料供給システム |
KR101406595B1 (ko) * | 2012-12-17 | 2014-06-11 | 현대자동차주식회사 | 커먼레일 시스템용 고압펌프의 윤활장치 |
US9464631B2 (en) | 2013-01-08 | 2016-10-11 | Cummins Inc. | Fuel pump for an internal combustion engine |
KR101439038B1 (ko) * | 2013-06-26 | 2014-09-05 | 현대자동차주식회사 | 커먼레일 시스템용 고압펌프의 윤활장치 |
DE102013217357A1 (de) * | 2013-08-30 | 2015-03-05 | Robert Bosch Gmbh | Pumpe, insbesondere eine Kraftstoffhochdruckpumpe |
DE102013220877A1 (de) * | 2013-10-15 | 2015-04-16 | Continental Automotive Gmbh | Ventil |
GB201415140D0 (en) * | 2014-08-27 | 2014-10-08 | Delphi International Operations Luxembourg S.�.R.L. | An evacuation device, assembly and arrangement |
ITUA20161817A1 (it) * | 2016-03-18 | 2017-09-18 | Bosch Gmbh Robert | Gruppo di pompaggio per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna |
DE102018108406A1 (de) * | 2017-06-22 | 2018-12-27 | Denso Corporation | Hochdruckkraftstoffpumpe und Kraftstoffversorgungssystem |
GB2565093B (en) * | 2017-08-01 | 2020-03-25 | Delphi Tech Ip Ltd | Fuel Pressurising device |
CN110821774B (zh) * | 2019-11-29 | 2021-03-02 | 江苏科技大学 | 一种凸轮滑块式柱塞泵 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2849997A (en) * | 1954-09-10 | 1958-09-02 | Licencia Talalmany Okat Erteke | Fuel injection pumps for internal combustion engines |
US3204561A (en) * | 1962-09-10 | 1965-09-07 | Hartford Machine Screw Co | Fuel pump |
DE2503346C2 (de) * | 1975-01-28 | 1986-04-03 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffverteilereinspritzpumpe für Brennkraftmaschinen |
DE3123325A1 (de) * | 1981-06-12 | 1982-12-30 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen |
GB2102890B (en) * | 1981-06-26 | 1984-09-12 | Lucas Ind Plc | Fuel pumping apparatus |
DE3144361A1 (de) * | 1981-11-07 | 1983-05-19 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen |
US4412519A (en) * | 1982-09-13 | 1983-11-01 | General Motors Corporation | Diesel fuel distributor type injection pump |
JPH0650090B2 (ja) * | 1983-05-17 | 1994-06-29 | 日産自動車株式会社 | 分配型燃料噴射ポンプの燃料遮断弁 |
US4643155A (en) * | 1984-10-05 | 1987-02-17 | Olin Corporation | Variable stroke, electronically controlled fuel injection control system |
JP2623537B2 (ja) * | 1986-08-20 | 1997-06-25 | トヨタ自動車株式会社 | 内燃機関の燃料噴射制御装置 |
CH674243A5 (de) * | 1987-07-08 | 1990-05-15 | Dereco Dieselmotoren Forschung | |
JP2690734B2 (ja) | 1987-09-16 | 1997-12-17 | 株式会社デンソー | 可変吐出量高圧ポンプ |
DE3823827A1 (de) * | 1988-07-14 | 1990-01-18 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen, insbesondere pumpeduese |
DE3934953A1 (de) * | 1989-10-20 | 1991-04-25 | Bosch Gmbh Robert | Magnetventil, insbesondere fuer kraftstoffeinspritzpumpen |
DE4032279A1 (de) * | 1990-10-11 | 1992-04-16 | Bosch Gmbh Robert | Kraftstoffeinspritzpumpe fuer brennkraftmaschinen |
JPH05263727A (ja) * | 1992-03-18 | 1993-10-12 | Isuzu Motors Ltd | 燃料噴射ポンプのカム軸 |
US5287840A (en) * | 1992-07-30 | 1994-02-22 | General Electric Canada Inc. | Cam sections for a "V"-type diesel engine |
-
1997
- 1997-07-02 EP EP97111054A patent/EP0816672B1/de not_active Expired - Lifetime
- 1997-07-02 DE DE69731241T patent/DE69731241T2/de not_active Expired - Lifetime
- 1997-07-02 DE DE69720603T patent/DE69720603T2/de not_active Expired - Lifetime
- 1997-07-02 EP EP02008521A patent/EP1221552B1/de not_active Expired - Lifetime
- 1997-07-03 US US08/888,238 patent/US6016790A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0816672B1 (de) | 2003-04-09 |
DE69720603D1 (de) | 2003-05-15 |
EP1221552A3 (de) | 2002-07-17 |
EP0816672A3 (de) | 2000-12-06 |
DE69731241T2 (de) | 2006-03-02 |
EP1221552A2 (de) | 2002-07-10 |
EP1221552B1 (de) | 2004-10-13 |
US6016790A (en) | 2000-01-25 |
EP0816672A2 (de) | 1998-01-07 |
DE69720603T2 (de) | 2004-03-04 |
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