EP0991858B1 - Dispositif ralentisseur monte dans le circuit d'echappement des gaz d'un vehicule equipe d'un moteur a combustion - Google Patents
Dispositif ralentisseur monte dans le circuit d'echappement des gaz d'un vehicule equipe d'un moteur a combustion Download PDFInfo
- Publication number
- EP0991858B1 EP0991858B1 EP99915822A EP99915822A EP0991858B1 EP 0991858 B1 EP0991858 B1 EP 0991858B1 EP 99915822 A EP99915822 A EP 99915822A EP 99915822 A EP99915822 A EP 99915822A EP 0991858 B1 EP0991858 B1 EP 0991858B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shutter
- valve
- shaft
- calibrated
- exhaust gas
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
- F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
- F02D9/06—Exhaust brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
Definitions
- the present invention relates to a retarder device mounted in the circuit exhaust gas from a vehicle equipped with a combustion engine, comprising at less a valve provided with a body defining a channel and a movable shutter arranged transversely in said channel and coupled to a control shaft, and control means of this shutter comprising a device for balancing the back pressure exerted by the shutter on the gases, this balancing device being arranged to take action when the shutter is in the closed position and from a predetermined back pressure threshold and to open a leak pipe as soon as the back pressure reaches said threshold and to keep it open beyond said threshold, whatever either the engine speed, so as to create an appropriate gas leakage rate exhaust, the balancing device comprising a calibrated valve disposed in said leakage duct and a compression spring disposed at the rear of said calibrated valve, this spring being tared at said threshold value.
- This type of retarder is well known in particular in the field of vehicles. manufacturers equipped with a combustion engine. Given their high inertia, these vehicles require, in addition to their own braking system, a retarder device housed in the exhaust gas circuit, preferably between engine and muffler, and usually mounted at the outlet of the turbocharger powered by the exhaust manifold. It is usually ordered by a pedal actuated by the driver's left foot to prevent it from disengaging in same time.
- This retarder device generates a back pressure in the exhaust system. This back pressure is higher or lower depending on the position of the shutter and its degree of opening. It has the effect of slowing the engine and therefore complete the braking of the vehicle. The lower the back pressure the higher the more effective the slowing down.
- this back pressure must be limited at the maximum set pressure allowed by the manifold to avoid reopening the intake valves
- This back pressure depends of course on the exhaust gas pressure exerted on the shutter which is an asymptotic function of the engine speed. Through therefore, each engine speed corresponds to a level of back pressure and therefore a level of deceleration. We are currently trying to make this function constant and at most equal to the maximum admissible set pressure whatever the engine speed and from low speeds, in order to optimize the slow-down.
- an exhaust modulator device includes in a shutter two leakage holes closed by leaf springs having different stiffnesses.
- a first blade comes out opens a first leak hole and releases part of the exhaust gases.
- second leaf spring opens a second leak hole thereby increasing the exhaust gas flow.
- the object of the present invention is to improve the current retarder devices by offering a simple, compact, cost-effective back pressure balancing device reduced, providing consistent slowdown performance and whatever the engine speed while guaranteeing reliability and operating stability over time without risk of degradation due to aggression exhaust gases and high temperature.
- a retarder device as defined in the preamble and characterized in that the balancing device is integrated in the valve body and has a guide bushing traversed by the shaft and provided with an axial housing intended to receive said calibrated valve and its spring coaxially with said shaft and in that the leakage pipe is arranged substantially perpendicular to the shaft and opens out in the channel downstream of said obturator so as to create in combination with said balancing device a branch circuit for part of the gas flow exhaust
- the guide sleeve has at least one peripheral orifice communicating with the part downstream of the leakage pipe.
- the guide sleeve has an annular seat arranged to receiving said calibrated valve in abutment, this seat comprising an opening communication said calibrated valve and the channel upstream of the shutter.
- the annular seat can consist of a circlip arranged in a groove corresponding provided in said guide sleeve, the inner diameter of the circlip being greater than that of the tree and delimiting said opening.
- the shutter advantageously comprises a cavity disposed opposite the calibrated valve and communicating with the channel upstream of the shutter, when the latter is in closed position.
- the calibrated valve has a seal disposed around the shutter shaft and the guide sleeve has in its axial housing a ring provided with a seal also disposed around the shutter shaft, these joints being flat joints made of graphite.
- the guide sleeve has a support face disposed opposite a corresponding face of the shutter to constitute a first axial stop.
- the valve also includes a second guide sleeve arranged to guide the other end of said control shaft, this second socket comprising a bearing face disposed opposite a corresponding face of the shutter for constitute a second axial stop.
- the guide bushings have an external thread, are screwed in corresponding housings provided in said body and are treated to provide a low coefficient of friction and withstand high temperatures and oxidation of exhaust gases.
- the retarder device 1 is mounted classic way in the exhaust system of a generally industrial vehicle and equipped with a combustion engine, at the outlet of a powered TC turbocharger by an EC exhaust manifold which recovers gases from said engine (not represented).
- the retarder device 1 comprises a valve 2 piloted by appropriate control means (not shown) such as a cylinder, motor, etc.
- the valve 2 comprises a body 4 defining a channel 5 for the passage of the exhaust gases in the direction of the arrows F and a bore 6 for a movable shutter 7 mounted in said body 4 transversely to said channel 5 intended to retain gas upstream when it is in the closed position.
- the body 4 has at its ends two mounting flanges 4a, 4b intended to receive, upstream, a flange TC turbocharger and, downstream, a corresponding flange exhaust pipe (see Fig. 1).
- mounting flanges 4a, 4b can be replaced by any other equivalent device, such as cable ties, etc.
- the movable shutter 7, which is shown, is a butterfly flap mounted on a shaft 8 of axis A, this shaft 8 defining the axis of rotation of said shutter 7.
- the shaft 8 is guided rotating in said body 4 by two lower guide sleeves 9 and upper 10.
- the guide bushes 9, 10 are screwed into the body 4 in housings corresponding, the assembly by thread ensuring a good seal between the bushings and said body with respect to exhaust gases liable to infiltrate.
- These sockets 9, 10 are also axially supported on corresponding faces of the shutter 7 by their corresponding inner faces 9 ', 10' and thereby ensure positioning and axial locking of said shutter avoiding any risk of parasitic vibration.
- these sockets 9, 10 are treated to offer a low coefficient of friction and resist high temperatures and oxidation of gas.
- One of the ends of the shaft 8 passes through said body 4 through the bushing upper guide 10 to be coupled to the control means directly or by an 8 'lever arm.
- Any other form of shutter is possible such as a bushel, ball or drawer.
- the retarder device 1 additionally comprises a balancing device 20 integrated in said body 4 of valve 2 and arranged to create a gas leakage rate exhaust when the shutter 7 is in the closed position to balance the pressures and obtain an independent maximum and constant backpressure value engine speed, from a certain predetermined pressure threshold.
- a balancing device 20 integrated in said body 4 of valve 2 and arranged to create a gas leakage rate exhaust when the shutter 7 is in the closed position to balance the pressures and obtain an independent maximum and constant backpressure value engine speed, from a certain predetermined pressure threshold.
- This balancing device 20 comprises a leakage conduit 21 formed in the body 4 shorting the shutter 7. It is in fact an already existing vacuum cellar in body 4 and used in the retarders of the holder of this application to ensure a seal between the control shaft and the body. In this invention, this vacuum cellar is used as a leakage duct. Therefore, body 4 does not need to undergo any particular modification except to provide a housing for the upper sleeve 10.
- This leakage conduit 21 is therefore disposed substantially perpendicular to the shaft 8, on either side of the upper guide sleeve 10. It has one end blind upstream of the shutter 7 and opens into the channel 5 downstream of said shutter 7.
- This balancing device 20 also includes a calibrated valve 22 arranged to open or close said leakage conduit 21 from a pressure threshold determined.
- This calibrated valve 22 is annular, slidably mounted around the shaft 8 and completed by a 22 'joint.
- This calibrated valve 22 is mounted in an axial housing 23 provided in the upper guide sleeve 10 and through which the shaft 8 passes.
- upper guide sleeve 10 has peripheral holes 24 communicating with said leakage duct 21.
- this annular seat 25 may consist of a circlip housed in a groove corresponding provided in said upper sleeve 10, its inner diameter being greater than that of the shaft 8 and defining said opening 26.
- a compression spring 27 is provided at the rear of the calibrated valve 22. It is mounted in abutment against a ring 28 provided with a seal 28 'and leaned against the bottom of said axial housing 23.
- This compression spring 27 is tared to a value such that it compresses from a force corresponding to the predetermined back pressure threshold, this pressure being exerted directly by the exhaust gas.
- the shutter 7 comprises, facing the socket of upper guide 10 a cavity 29 formed around the shaft 8 and in communication with the opening 26 provided in the annular seat 25. This cavity 29 has a form in an arc and communicating only with channel 5 upstream of the shutter 7.
- the seals 22 ′ and 28 ′ are preferably flat seals made of graphite, therefore resistant to high temperatures and corrosive gases. They seal between the shaft 8 and the valve 22 and the upper bush 10.
- the retarder 1 is controlled by the driver of the vehicle industrial by means of a foot control.
- the retarder device 1 In normal operation of the vehicle, the retarder device 1 is at rest, so the shutter 7 is open (cf. Fig. 2) allowing the gases to escape freely.
- the means of user-operated controls cause the shutter 7 to close (see Fig. 3) thus retaining the gases and generating a back pressure which causes the engine slowing down and therefore a decrease in vehicle speed.
- the balancing device 20 (cf. FIG. 4) is actuated to balance the pressures and regulate the back pressure to a constant value whatever the speed of the motor.
- Figure 2 shows the retarder device 1 in its rest position.
- the shutter 7 is in the open position, that is to say oriented parallel to the flow of exhaust gas.
- the gas pressure in front of the calibrated valve 22 is substantially nothing. Therefore, the balancing device 20 is not in action.
- Figure 3 shows the retarder device 1 in its working position.
- the shutter 7 is in the closed position, that is to say oriented perpendicular to the flow. exhaust gas and generates back pressure.
- the shutter 7 and the bore 6 of this shutter are arranged to let escape a very low gas leak.
- the pressure in front of the calibrated valve 22 increases but is still below the predetermined and defined back pressure threshold by the compression spring 27.
- FIG. 4 shows the retarder device 1 in its equilibrium position.
- the gas pressure upstream of the shutter 7 has increased beyond the back pressure threshold determined by the spring 27 of the calibrated valve 22.
- the calibrated valve 22 lifts from its seat 25 by compressing the spring 27.
- the opening 26 then connects the channel 5 upstream of the shutter 7 via of its cavity 29 with the leakage conduit 21 via the orifices peripherals 24 formed in the upper guide sleeve 10.
- part exhaust gas is deflected into the leakage duct 21 which discharges it downstream of the shutter 7 creating a varying leakage rate to maintain a back pressure substantially constant.
- the valve calibrated 22 remains open in an equilibrium position having the effect of regulating the back pressure upstream of the shutter 7.
- a constant slowing down is obtained and maximum corresponding for example to the maximum allowable set pressure by the CE exhaust manifold whatever the engine speed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
- Braking Arrangements (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Check Valves (AREA)
Description
- la figure 1 représente une vue d'ensemble en perspective d'un dispositif ralentisseur selon l'invention monté à la sortie d'un turbocompresseur,
- les figures 2 à 4 sont des vues en coupe axiale montrant le dispositif ralentisseur respectivement au repos - l'obturateur ouvert, au travail - l'obturateur fermé et en équilibre - le conduit de fuite ouvert,
- la figure 5 est une vue en perspective de l'obturateur, et
- la figure 6 est une vue en perspective de la douille de guidage du dispositif d'équilibrage.
Claims (12)
- Dispositif ralentisseur (1) monté dans le circuit d'échappement des gaz d'un véhicule équipé d'un moteur à combustion, comportant au moins une vanne (2) pourvue d'un corps (4) définissant un canal (5) et d'un obturateur mobile (7) disposé transversalement dans ledit canal (5) et couplé à un arbre de commande (8), et des moyens de commande de cet obturateur comportant un dispositif d'équilibrage (20) de la contre-pression exercée par l'obturateur sur les gaz, ce dispositif d'équilibrage étant agencé pour entrer en action quand l'obturateur (7) est en position fermée et à partir d'un seuil de contre-pression prédéterminé et pour ouvrir un conduit de fuite (21) dès que la contre-pression atteint ledit seuil et pour le garder ouvert au-delà dudit seuil, quel que soit le régime du moteur, de manière à créer un débit de fuite approprié des gaz d'échappement, le dispositif d'équilibrage (20) comportant un clapet taré (22) disposé dans ledit conduit de fuite (21) et un ressort de compression (27) disposé à l'arrière dudit clapet taré (22), ce ressort étant taré à ladite valeur de seuil, caractérisé en ce que le dispositif d'équilibrage (20) est intégré dans le corps (4) de la vanne (2) et comporte une douille de guidage (10) traversée par l'arbre (8) et pourvue d'un logement axial (23) destiné à recevoir ledit clapet taré (22) et son ressort (27) coaxialement audit arbre (8) et en ce que le conduit de fuite (21) est disposé sensiblement perpendiculairement à l'arbre (8) et débouche dans le canal (5) en aval dudit obturateur de manière à créer en combinaison avec ledit dispositif d'équilibrage (20) un circuit de dérivation d'une partie du flux des gaz d'échappement.
- Dispositif selon la revendication 1, caractérisé en ce que la douille de guidage (10) comporte au moins un orifice périphérique (24) communiquant avec la partie en aval du conduit de fuite (21).
- Dispositif selon la revendication 1, caractérisé en ce que la douille de guidage (10) comporte un siège annulaire (25) agencé pour recevoir en butée ledit clapet taré (22), ce siège comportant une ouverture (26) mettant en communication ledit clapet taré (22) et le canal (5) en amont de l'obturateur (7).
- Dispositif selon la revendication 3, caractérisé en ce que le siège annulaire (25) est constitué d'un circlips disposé dans une rainure correspondante prévue dans ladite douille de guidage (10), le diamètre intérieur du circlips étant supérieur à celui de l'arbre (8) et délimitant ladite ouverture (26).
- Dispositif selon la revendication 1, caractérisé en ce que l'obturateur (7) comporte une cavité (29) disposée en regard du clapet taré (22) et communiquant avec le canal (5) en amont de l'obturateur (7), quand ce dernier est en position fermée.
- Dispositif selon la revendication 1, caractérisé en ce que le clapet taré (22) comporte un joint (22') disposé autour de l'arbre (8) de l'obturateur (7).
- Dispositif selon la revendication 1, caractérisé en ce que la douille de guidage (10) comporte dans son logement axial (23) une bague (28) pourvu d'un joint (28') disposé autour de l'arbre (8) de l'obturateur (7).
- Dispositif selon la revendication 6 ou 7, caractérisé en ce que les joints (22', 28') sont des joints plats réalisés en graphite.
- Dispositif selon la revendication 1, caractérisé en ce que la douille de guidage (10) comporte une face d'appui (10') disposée en regard d'une face correspondante de l'obturateur (7) pour constituer une première butée axiale.
- Dispositif selon la revendication 9, caractérisé en ce que la vanne (2) comporte une deuxième douille de guidage (9) agencée pour guider l'autre extrémité dudit arbre (8) de commande, cette deuxième douille comportant une face d'appui (9') disposée en regard d'une face correspondante de l'obturateur (7) pour constituer une deuxième butée axiale.
- Dispositif selon les revendications 9 et 10, caractérisé en ce que les douilles de guidage (9, 10) comportent un filetage extérieur et sont vissées dans des logements correspondants prévus dans ledit corps (4).
- Dispositif selon la revendication 11, caractérisé en ce que les douilles de guidage (9, 10) sont traitées pour offrir un faible coefficient de frottement et résister à de températures élevées et à l'oxydation des gaz d'échappement.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9805211A FR2777946B1 (fr) | 1998-04-22 | 1998-04-22 | Dispositif ralentisseur monte dans le circuit d'echappement des gaz d'un vehicule equipe d'un moteur a combustion |
FR9805211 | 1998-04-22 | ||
PCT/FR1999/000966 WO1999054612A1 (fr) | 1998-04-22 | 1999-04-22 | Dispositif ralentisseur monte dans le circuit d'echappement des gaz d'un vehicule equipe d'un moteur a combustion |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0991858A1 EP0991858A1 (fr) | 2000-04-12 |
EP0991858B1 true EP0991858B1 (fr) | 2002-08-07 |
Family
ID=9525679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99915822A Expired - Lifetime EP0991858B1 (fr) | 1998-04-22 | 1999-04-22 | Dispositif ralentisseur monte dans le circuit d'echappement des gaz d'un vehicule equipe d'un moteur a combustion |
Country Status (11)
Country | Link |
---|---|
US (1) | US6273058B1 (fr) |
EP (1) | EP0991858B1 (fr) |
KR (1) | KR20010020489A (fr) |
AT (1) | ATE221956T1 (fr) |
AU (1) | AU3426699A (fr) |
CA (1) | CA2294093A1 (fr) |
DE (1) | DE69902429T2 (fr) |
FR (1) | FR2777946B1 (fr) |
RU (1) | RU2218469C2 (fr) |
TR (1) | TR199903201T1 (fr) |
WO (1) | WO1999054612A1 (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4537556B2 (ja) * | 2000-03-31 | 2010-09-01 | 本田技研工業株式会社 | 排気制御弁 |
JP4015353B2 (ja) * | 2000-03-31 | 2007-11-28 | 本田技研工業株式会社 | 排気制御弁 |
DE10144293A1 (de) * | 2001-08-31 | 2003-04-03 | Siemens Ag | Ventilkomponentensatz für interne Bypass-Strömung |
JP4446635B2 (ja) * | 2001-09-03 | 2010-04-07 | 本田技研工業株式会社 | 内燃機関の排ガス弁装置 |
JP4061467B2 (ja) * | 2002-03-15 | 2008-03-19 | 三菱自動車工業株式会社 | 内燃機関の排気浄化装置 |
JP2004011602A (ja) * | 2002-06-11 | 2004-01-15 | Aisan Ind Co Ltd | 排気圧力制御弁 |
JP4130912B2 (ja) * | 2003-12-24 | 2008-08-13 | 愛三工業株式会社 | 内燃機関の排気圧上昇装置 |
DE102004032856A1 (de) | 2004-07-07 | 2006-02-02 | Faurecia Abgastechnik Gmbh | Klappenventil für die Abgasanlage eines Kraftfahrzeugs |
DE102004032845A1 (de) * | 2004-07-07 | 2006-02-02 | Faurecia Abgastechnik Gmbh | Klappenventil für die Abgasanlage eines Kraftfahrzeuges |
DE602005022771D1 (de) * | 2004-11-22 | 2010-09-16 | Jacobs Vehicle Systems Inc | Vorrichtung und verfahren zur steuerung von abgasdruck |
JP4767183B2 (ja) * | 2007-01-15 | 2011-09-07 | 川崎重工業株式会社 | エンジンの排気デバイス |
KR101462242B1 (ko) * | 2007-05-21 | 2014-11-18 | 보르그워너 인코퍼레이티드 | 연소 엔진 브리딩 시스템용 밸브 모듈 |
NL2000683C2 (nl) * | 2007-06-05 | 2008-12-08 | Daf Trucks Nv | Uitlaatrem voor een voertuig voorzien van een verbrandingsmotor. |
GB0806401D0 (en) * | 2008-04-09 | 2008-05-14 | Cummins Turbo Tech Ltd | Butterfly valve |
CN102439275A (zh) * | 2009-04-20 | 2012-05-02 | 万国引擎知识产权有限责任公司 | 节流阀及其制造方法 |
EP2253816B1 (fr) * | 2009-05-20 | 2016-02-10 | ElringKlinger AG | Passage tournant doté d'une perméabilité réduite au gaz |
CN104390020B (zh) * | 2010-09-20 | 2017-04-19 | 诺格伦有限责任公司 | 蝶形阀 |
CN103282621B (zh) * | 2011-01-07 | 2016-05-25 | 博格华纳公司 | 用于致动轴的弹簧偏置的密封结构和方法 |
KR101261954B1 (ko) * | 2011-10-28 | 2013-05-09 | 현대자동차주식회사 | 자동차 배기브레이크 제어 시스템 및 방법 |
US20130140476A1 (en) * | 2011-12-03 | 2013-06-06 | Big Horn Valve, Inc. | Rotary valve adapter assembly with planetary gear system |
DE102012103926B4 (de) | 2012-05-04 | 2015-01-08 | Pierburg Gmbh | Klappenlagersystem für eine Klappenwelle in einem Kraftfahrzeug |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH428318A (de) * | 1965-12-28 | 1967-01-15 | Haller Richard | Motorbremse für Fahrzeuge mit Verbrennungskraftmaschine |
DE3430028A1 (de) * | 1984-08-16 | 1986-02-27 | Alfred 8573 Pottenstein Schmidt | Einrichtung zur begrenzung des staudruckes einer auspuffmotorbremse |
DE3533393A1 (de) * | 1985-09-19 | 1987-03-26 | Alfred Schmidt | Staudruckbegrenzung mit sicherungsventil |
GB9014486D0 (en) * | 1990-06-29 | 1990-08-22 | Dewandre Co Ltd C | Exhaust brake variable orifice |
DE4116371A1 (de) * | 1991-05-18 | 1992-11-19 | Alfred Schmidt | Ventilvorrichtung einer auspuffmotorbremse |
GB9119644D0 (en) * | 1991-09-13 | 1991-10-23 | Wabco Automotive Uk Ltd | Butterfly valve seal |
JPH09144569A (ja) * | 1995-11-28 | 1997-06-03 | Jidosha Kiki Co Ltd | 排気ブレーキ装置 |
-
1998
- 1998-04-22 FR FR9805211A patent/FR2777946B1/fr not_active Expired - Fee Related
-
1999
- 1999-04-22 WO PCT/FR1999/000966 patent/WO1999054612A1/fr not_active Application Discontinuation
- 1999-04-22 RU RU2000100817/06A patent/RU2218469C2/ru not_active IP Right Cessation
- 1999-04-22 DE DE69902429T patent/DE69902429T2/de not_active Expired - Fee Related
- 1999-04-22 CA CA002294093A patent/CA2294093A1/fr not_active Abandoned
- 1999-04-22 AU AU34266/99A patent/AU3426699A/en not_active Abandoned
- 1999-04-22 EP EP99915822A patent/EP0991858B1/fr not_active Expired - Lifetime
- 1999-04-22 KR KR1019997012165A patent/KR20010020489A/ko not_active Application Discontinuation
- 1999-04-22 TR TR1999/03201T patent/TR199903201T1/xx unknown
- 1999-04-22 US US09/446,271 patent/US6273058B1/en not_active Expired - Fee Related
- 1999-04-22 AT AT99915822T patent/ATE221956T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69902429D1 (de) | 2002-09-12 |
EP0991858A1 (fr) | 2000-04-12 |
AU3426699A (en) | 1999-11-08 |
US6273058B1 (en) | 2001-08-14 |
CA2294093A1 (fr) | 1999-10-28 |
FR2777946B1 (fr) | 2000-06-16 |
RU2218469C2 (ru) | 2003-12-10 |
WO1999054612A1 (fr) | 1999-10-28 |
DE69902429T2 (de) | 2003-05-08 |
TR199903201T1 (xx) | 2000-07-21 |
FR2777946A1 (fr) | 1999-10-29 |
ATE221956T1 (de) | 2002-08-15 |
KR20010020489A (ko) | 2001-03-15 |
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