EP0883739A1 - Drosselvorrichtung für eine brennkraftmaschine - Google Patents
Drosselvorrichtung für eine brennkraftmaschineInfo
- Publication number
- EP0883739A1 EP0883739A1 EP97949900A EP97949900A EP0883739A1 EP 0883739 A1 EP0883739 A1 EP 0883739A1 EP 97949900 A EP97949900 A EP 97949900A EP 97949900 A EP97949900 A EP 97949900A EP 0883739 A1 EP0883739 A1 EP 0883739A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- housing
- shaft
- throttle
- throttle valve
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
Definitions
- the invention relates to a throttle device for an internal combustion engine, in particular in a motor vehicle, of the type defined in the preamble of claim 1.
- the control of the driving speed of the motor vehicle via the accelerator pedal is combined with the regulation of the idling speed. If the accelerator pedal is actuated in the direction of full load, the actuator turns on the first rotary stop
- Throttle valve shaft also adjusted towards full load, i.e. the throttle valve increasingly open.
- the throttle valve shaft lies on the second one under the restoring force of the second return spring
- Rotary stop and can be adjusted via the engine idle control in the idle area of the internal combustion engine.
- the engine idle actuator is integrated in the throttle housing, in which a throttle valve receiving intake pipe section is formed, from which the throttle valve shaft on diametrical sides with free
- the actuator engages on one shaft end and the idle actuator engages on the other shaft end via its assigned rotary stop.
- the two return springs are arranged as mutually concentric torsion springs on the actuator-side shaft end of the throttle valve shaft, an outer torsion spring being attached to the throttle housing and an arm rotating on the throttle valve shaft and the inner torsion spring being fastened to the throttle housing and the actuator.
- the actuator which is mounted coaxially to the throttle valve shaft in the throttle housing, bears a radially protruding lever, at the free end of which a transmission element, such as a coupling rod or cable pull, leads to the accelerator pedal.
- the throttle device according to the invention with the characterizing features of claim 1 has the advantage that the idle actuator accommodated in a separate actuator housing constitutes a modular unit that can be easily combined with throttle housings of different types and / or throttle housings with differently designed actuators and is therefore inexpensive due to the high number of items manufactured Modular element to meet the needs of different customer requests. Installation is simple and is limited to attaching the actuator housing to the throttle housing, the clutch engaging automatically. In addition, the existing installation space in the can by different angular positions of the actuator housing relative to the throttle housing
- the necessary potentiometers for sensing the throttle valve position on the one hand and the idle setting on the other hand can be integrated into the actuator housing in a structurally simple manner, so that the universally usable modular unit "idle actuator" also still contains the query sensors.
- the clutch has a first clutch part that is non-rotatably seated on the actuator shaft with an axial breakthrough arranged at a radial distance from the actuator shaft and a second clutch part that is non-rotatably seated on the shaft end of the throttle valve shaft and has an axially the same radial distance from the throttle valve shaft via the Coupling finger protruding from the shaft end, which passes through the opening when the actuator housing is flanged.
- the actuator housing and throttle housing have mutually coordinated mounting hole patterns for flanging, the first coupling part being fixed uniformly in a rotational angle position predetermined by the angular position of the opening for the hole pattern of the actuator housing on the actuator shaft.
- the second coupling part is designed to be placed on the shaft end of the throttle valve shaft and to lock in any rotational angle position, which can be done, for example, by pressing the coupling part onto the
- Throttle valve shaft can be reached.
- the required rotational position of the second coupling part depends on the desired relative rotation of the throttle and actuator housing and is structurally determined in such a way that when the actuator housing is flanged with the same
- Fastening hole patterns of the coupling fingers pass through the opening and couple with the first coupling part without play.
- a centering socket on the throttle housing which is concentric with the throttle valve shaft and which, when the actuator housing is flanged, is immersed in a centering recess which is formed on the actuator housing and is concentric with the actuator shaft to facilitate installation.
- the return springs are designed as concentric torsion springs surrounding the shaft end of the throttle valve shaft, the outer torsion spring being fastened between the throttle housing and the actuator and the inner torsion spring between the actuator and the throttle valve shaft.
- FIG. 1 is a side view of a throttle device for an internal combustion engine, partly in section,
- Fig. 2 shows a section of an actuator housing
- Fig. 3 is an end view of the actuator housing in
- FIG. 4 shows the same representation as FIG. 3 with the potentiometer cover removed and the idle speed control partially removed, FIG.
- FIG. 5 shows a schematic illustration of the throttle device according to FIG. 1 to explain its mode of operation
- Fig. 6 shows a detail of the idle actuator.
- the throttle device for an internal combustion engine of a motor vehicle shown in side view and partially in section in FIG. 1 serves to control the
- the throttle device has a throttle housing 11 and a laterally flange-mounted actuator housing 12, in which an engine idle actuator 13 (FIG. 5) is accommodated.
- an engine idle actuator 13 In the throttle housing 11 is a
- Intake pipe section 14 is formed, which is attached to the intake pipe of the internal combustion engine.
- the clear cross section of the intake manifold section 14 is controlled by a throttle valve 15, which is arranged on a throttle valve shaft 16 in a rotationally fixed manner.
- the throttle valve shaft 16 passes diametrically through the intake manifold section 14 and is rotatably received in two rotary bearings 17, 18, which are received in two bearing connections 19, 20 formed in the throttle housing 11.
- the throttle valve shaft 16 protrudes with two shaft ends 161, 162 at the ends over the two bearing sockets 19, 20 and carries on one shaft end 161 an actuator 21 which is connected to the accelerator pedal 10 via a coupling element, for example a cable 22 (FIG. 5) or a coupling rod connected is.
- this rope pulley 23 is embodied, which is rotatably seated on the shaft end 161 of the throttle valve shaft 16 and overlaps a driving sleeve 24 held in a rotationally fixed manner on the throttle valve shaft 16.
- An inner groove 25 (FIGS. 1, 5) facing the throttle valve shaft 16, which extends in the circumferential direction over an angle of rotation range and is delimited at the ends by a radial shoulder 251, 252 (FIG. 5), is introduced into the part of the cable pulley 23 which overlaps the driving sleeve 24.
- the length in the circumferential direction of the inner groove 25 corresponds to the angular range by which the throttle valve shaft 16 can be rotated by the engine idling divider 13 without exerting a rotational movement on the rope pulley 23.
- a radially protruding driver 241 is formed on the driver sleeve 24, which projects into the inner groove 25 and, when the cable pulley 23 is actuated, ensures that the throttle valve shaft 16 is carried along.
- a return spring 26 Under the action of a return spring 26 the driving sleeve 24 is drawn in the direction of the radial shoulder 251.
- the radial shoulder 252 represents a safety stop, which comes into effect, for example, if the return spring 26 fails.
- the inner groove 25 allows the idle actuator 13 to actuate the throttle valve shaft 16 without having to actuate the cable pulley 23.
- a return spring 27 which has a significantly greater actuating torque than the return spring 26, the cable pulley 23 bears against a stop 28 formed on the throttle housing 11.
- Two stops 64, 65 provided in the actuator housing 12 serve as safety stops in the event of incorrect control of an electric motor 33 present in the idle actuator 13 (FIGS. 4, 5). In normal operation, the stops 64, 65 and the radial shoulder 252 have no function.
- the two return springs 26 and 27 are each formed as two torsion springs 29 and 30 which act in parallel and are pushed concentrically to one another over the shaft end of the throttle valve shaft 16.
- the inner torsion springs 29, which form the restoring spring 26 for the driving sleeve 24 and have the smaller restoring moment, are articulated on the one hand on the driving sleeve 24 and on the other hand on the sheave 23, while the outer torsion springs 30, which the
- the radial shoulder 251 of the inner groove 25 takes the driver 241 with it and rotates on the throttle valve shaft 16 via the rotationally fixed Sitting driver sleeve 24, the throttle valve shaft 16, whereby the throttle valve 15 increasingly releases the clear cross section of the intake manifold section 14.
- the radial shoulder 251 on the inner groove 25 in the cable pulley 23 thus forms a first rotary stop 31, by means of which the throttle valve shaft 16 is carried for the rotational movement when the accelerator pedal 10 is actuated for the purpose of pivoting the throttle valve 15.
- the shaft end 162 of the throttle valve shaft 16 facing away from the actuator 21 protrudes into the actuator housing 12 and is coupled there to the engine idle actuator 13.
- the idle actuator 13 has the electric motor 33 (Fig. 4.5), which drives an actuator shaft 35 (Fig. 1, 2) via a self-locking worm gear 34.
- the worm 36 (FIGS. 4, 5) of the worm gear 34 rotates on the output shaft of the electric motor 33, and the worm wheel 37 meshing with the worm 36 (FIG. 2) rotates on the actuator shaft 35.
- the actuator shaft 35 is in the actuator housing 12 rotatably mounted and arranged so that when the actuator housing 12 is flanged onto the actuator housing 11 it is aligned with the actuator valve shaft 16.
- Coupling part 382 includes a rotationally fixed connection between the actuator shaft 35 and the throttle valve shaft 16.
- the coupling 38 is designed so that when the actuator housing 12 is flanged onto the droplet housing 11, the two coupling parts 381 and 382 come into engagement with one another, that is to say the coupling 38 engages automatically during assembly.
- the electric motor 33 of the idle actuator 13 is activated, the worm wheel 37 rotates on the actuator shaft 35 and takes the clutch 38 and thus the throttle valve shaft 16 with it via a second rotary stop 32 (FIGS. 2, 5).
- the Dro ⁇ elklappenwelle 16 is thus against Restoring force of the return spring 26 rotated, and the throttle valve 15 opens the intake pipe section 14 accordingly for the idle setting.
- the radial shoulder 252 in the inner groove 25 of the rope pulley 23 is a safety stop which limits the rotary movement of the throttle valve shaft 16 in the event of incorrect control of the electric motor 33.
- the maximum adjustment path of the electric motor 33 is limited by software.
- an axial recess 39 or an axial breakthrough is made in the end face of the worm wheel 37 facing the coupling 38, which recess is in the end wall of the worm wheel 37 in the circumferential direction over a rotation angle range of at least 90 ° stretched, which corresponds to the maximum angle of rotation of the throttle valve shaft 16 when the accelerator pedal 10 is actuated.
- the axial depression 39 is delimited in the circumferential direction at one end by a radial shoulder 391 (FIGS. 2, 5).
- FIG. 6 shows the interaction of the first clutch part 381 with the second clutch part 382 of the clutch 38.
- FIG. 6b shows the coupling 38 from the side with the same viewing direction as FIG. 2, and
- FIG. 6a shows an end view of the coupling 38 from the viewing direction marked via in FIG. 6b.
- the coupling part 381 is disc-shaped.
- the first coupling part 381 of the coupling 38 is non-rotatably and axially fixed on the actuator shaft 35.
- the coupling part 381 has an axial opening 41 which is introduced at a radial distance from the actuator shaft 35.
- the tab 40 Viewed in the circumferential direction, adjacent to the opening 41, the tab 40 is integrally formed on the disk-shaped coupling part 381.
- a clasp-shaped clamping spring 42 is fixed on the first coupling part 381.
- the clamping spring 42 has a first clip leg 421 and a second clip leg 422.
- the first clip leg 421 extends over the opening 41.
- the second clutch part 382, which is fastened in the correct position on the second shaft end 162 of the throttle valve shaft 16, is preferably pressed on (FIGS. 1, 2) and carries a clutch finger 43 (FIG. 1) which is arranged at a radial distance from the throttle valve shaft 16 and projects axially beyond the shaft end 162. l, 2).
- the radial distance of the clutch finger 43 from the axis of the throttle valve shaft 16 corresponds to the radial distance of the opening 41 in the first clutch part 381 from the axis of the actuator shaft 35, so that when the actuator housing 12 is flanged onto the throttle housing 11, the clutch finger 43 of the second clutch part 41 382 through the opening passes through.
- the coupling finger 43 is clamped between the clasp leg 421 of the clamping spring 42 and the tab 40.
- the clasp leg 422 is supported on the side of the flap 40 facing away from the opening 41 (FIG. 6).
- the clasp leg 421 presses the clutch finger 43 with elastic pretension against the radial side of the flap 40 facing the opening 41. So that the coupling finger 43, when the idle actuator 13 is attached to the throttle housing 11, in the opening 41 between the flap 40 and the flap 40 against the flap 40 Clasp leg 421 can be pushed, a slope 431 is provided on the coupling finger 43 (Fig. 6a, 6b).
- the clamping spring 42 creates between the coupling finger 43 of the second coupling part 382 and the flap 40 of the first coupling part 381 have a play-free, non-positive connection between the throttle valve shaft 16 and the actuator shaft 35.
- the first coupling part 381 is connected to the actuator shaft 35 in a rotationally fixed and axially fixed manner.
- the tab 40 ⁇ einer ⁇ eit ⁇ dips into the axial recess 39 in the worm wheel 37 and can interact there with the radial shoulder 391 of the second rotary stop 32.
- the lug 40 of the first coupling part 381, which plunges into the recess 39 of the worm wheel 37, ensures that the coupling part 381 cannot be rotated inadmissibly before the idling actuator 13 is attached to the throttle housing 11.
- the actuator housing 12 is closed on the front side facing the throttle housing 11 with a housing cover 44 and on its side facing away from it with a potentiometer cover 45.
- a slide bearing 46 is formed in the housing cover 44 and a slide bearing 47 aligned therewith in the potentiometer cover 45.
- the actuator shaft 35 is rotatably received in the two slide bearings 46, 47.
- the potentiometer cover 45 is glued into the actuator housing 12.
- the housing cover 44 is connected to the actuator housing 12 via snap noses.
- the housing cover 44 has a centering recess 48 on its end facing the dro ⁇ el housing 11, which is matched to a centering socket 49 (shown in FIG. 2) formed on the droel housing 11.
- the centering connector 49 plunges positively into the centering recess 48 and thus centers the actuator housing 12 on the throttle housing 11, whereby the alignment of the axes of the throttle valve shaft 16 and the actuator shaft 35 is automatically ensured.
- the embodiment can also be modified so that, for the purpose of centering, a circumferential shoulder on the actuator housing 12 engages in a circumferential recess provided on the throttle housing 11.
- the actuator housing 12 can assume any angle of rotation relative to the throttle housing 11, so that the throttle device as a whole can be optimally adapted to a limited installation space present in the motor vehicle.
- the second coupling part 382 on the throttle valve shaft 16, that in the exemplary embodiment shown is formed by the coupling finger 43 which is non-rotatably attached to the throttle valve shaft 16 and engages in the opening 41, must also be rotated in accordance with the rotation of the hole pattern of the fastening eyes 50 relative to the throttle housing 11 and in the final one Rotational position are pressed onto the throttle valve shaft 16, so that when the actuator housing 12 and throttle housing 11 are joined together, the two hole patterns of the fastening eyes 50, 51 of the Coupling finger 43 is correctly assigned to the opening 41 in the coupling part 381 and can pass through it.
- a potentiometer 52 or 53 (FIGS. 2 and 5) is provided in each case for sensing the adjustment path of the throttle valve 15 when the idle speed is set by the electric motor 33 and when the vehicle speed is controlled by the accelerator pedal 10.
- the potentiometer 53 detects the position of the throttle valve 15 via the actuator shaft 35.
- the potentiometer 52 detects the position of the worm wheel 37 with the second stop 32. Whether the idle control is present can be determined by comparing the two potentiometers 52 and 53. With idle control via the idle divider 13, the angular position of the throttle valve 15 can be detected via both potentiometers 52 and 53. 2 shows, these two potentiometers 52, 53 are integrated in the actuator housing 12.
- the resistance tracks of the potentiometers 52, 53 are arranged as conductor tracks in the form of a circular arc on a common substrate 54.
- the substrate 54 is placed on supports provided in the actuator housing 12. Then the potentiometer cover 45 is put on. In a common operation, the substrate 54 with the conductor tracks and the potentiometer cover 45 with the actuator housing 12 are glued.
- the potentiometer taps of the potentiometers 52, 53 designed as wipers 521, 531 are arranged coaxially to the actuator shaft 35 (FIG. 2). Each wiper 521 or 531 presses with two contact springs 55 and 56 or 57 and 58 onto two of the concentric, circular arc-shaped conductor tracks on the substrate 54.
- the grinder 521 of the potentiometer 52 for idle adjustment is rotatably seated on the actuator shaft 35 and is firmly connected, for example by welding, to the worm wheel 37, while the grinder 531 of the potentiometer 53 for sensing the throttle valve position is rotationally fixed on the actuator shaft 35.
- the potentiometers 52 and 53 are connected to a multi-pole contact plug 59 (FIGS. 1 and 3), via which the power supply, the control of the electric motor 33 and the measurement value query takes place.
- the mode of operation of the described throttle device can be explained most clearly using the schematic drawing shown in FIG. 5.
- the components indicated in the schematic drawing correspond to the components described in FIGS. 1-4 and are provided with the same reference numerals.
- the electric motor 33 of the idle actuator 13 is controlled accordingly.
- the latter rotates the worm wheel 37 via the worm 36, which rotates the throttle valve shaft 16 by a certain angle of rotation via the second rotary stop 32 and the clutch 38, and thereby causes a slight adjustment of the throttle valve 15.
- this causes the throttle valve 15 to be displaced in the opening or closing direction.
- the grinder 521 of the potentiometer 52 is also rotated, and the idle setting of the idle actuator 13 is determined by a Potentiometer tap removed voltage. This state is shown in FIG. 5.
- the actuating element 21 is actuated via the cable 22, i.e. the pulley 23 rotated.
- the rotary stop 31 on the cable pulley 23 strikes the driver 241 of the driver sleeve 24, it takes the driver 241 with it, as a result of which the throttle valve shaft 16 rotates further in the opening direction and the throttle valve 15 is adjusted accordingly.
- the rotation of the throttle valve shaft 16 is transmitted to the actuator shaft 35 via the clutch 38.
- the grinder 531 of the potentiometer 53 rotates with the actuator shaft 35, and the position of the throttle valve 15 is ⁇ en ⁇ iert by a voltage removed at the potentiometer tap.
- the throttle device can be divided into a first assembly 61 (FIG. 5) and a second assembly 62. 5, a dash-dotted line 60 is entered, which is an imaginary dividing line between symbolize the two assemblies 61, 62.
- the first assembly 61 consists essentially of the throttle housing 11, the intake manifold section 14, the throttle valve 15, the throttle valve shaft 16, the actuator 21 (pulley 23), the return springs 26, 27 and the coupling part 382 of the clutch 38.
- the second assembly 62 corresponds the motor-driven Leerlau actuator 13 and essentially comprises the electric motor 33, the worm wheel gear 34 with the worm 36 and the worm wheel 37, the radial shoulder 391 forming the second rotary stop 32 on the worm wheel 37, the
- the second assembly 62 (motorized idler actuator 13) can be manufactured, stored and delivered independently of the first assembly 61.
- the first assembly 61 can be adapted to the internal combustion engine to be controlled in individual cases, without having to make any changes to the second assembly 62. No change is required on the second assembly 62 (engine idle actuator 13). Therefore, the second assembly 62 can be efficiently manufactured in large numbers.
- the coupling 38 which functionally connects the two assemblies 61, 62, allows any angular position of the engine idle actuator 13 with respect to the throttle housing
- the coupling 38 also enables a play-free connection between the potentiometer 53 in the second assembly 62 and the throttle valve 15 in the first assembly 61.
- the actuator housing 12 of the idling actuator 13 has a wall 121 (FIG. 2) running transversely to the actuator shaft 35 with a central opening.
- the actuator shaft 35 runs through the opening in the wall 121.
- the grinder 521 and the worm wheel 37 are connected to one another in a rotationally fixed and axially fixed manner after being installed in the actuator housing 12.
- the grinder 521 and the worm wheel 37 form a composite which is rotatably mounted on the actuator shaft 35. 2, the grinder 521 is located to the right of the wall 121, and the worm wheel 37 is located to the left of the wall 121.
- the composite formed from the grinder 521 and the worm wheel 37 has one Circumferential groove 122 into which the wall 121 protrudes. This ensures axial guidance of the worm wheel 37 and the grinder via the wall 121 of the actuator housing 12, and radial control of the assembly comprising the worm wheel 37 and the grinder 521 is ensured via the actuator shaft 35.
- a ring 351 (Fig. 2) is fixed to the actuator shaft 35.
- the coupling part 381 is also firmly connected to the actuator shaft 35.
- the coupling part 381 has one in the direction of the ring 351 projecting with a smaller outer diameter than the ring 351, so that a circumferential groove 352 is formed between the ring 351 and the coupling part 381.
- the worm wheel 37 has a radially inwardly projecting peripheral projection 371. In the longitudinal direction of the axis of the
- the shoulder 371 projecting into the circumferential groove 352 is of the same length as the circumferential groove 352.
- the compound comprising the worm wheel 37 and the grinder 521 from the wall protruding into the circumferential groove 122 121 axially guided, and the worm wheel 37 in turn guides with the shoulder 371 projecting into the circumferential groove 352 in the axial direction the first coupling part 381 and the actuator shaft 35 fixedly connected to the coupling part 381, the actuator shaft 35 in the radial direction of the two
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)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19652255 | 1996-12-16 | ||
DE19652255 | 1996-12-16 | ||
DE19709748A DE19709748A1 (de) | 1996-12-16 | 1997-03-10 | Drosselvorrichtung für eine Brennkraftmaschine |
DE19709748 | 1997-03-10 | ||
PCT/DE1997/002620 WO1998027326A1 (de) | 1996-12-16 | 1997-11-10 | Drosselvorrichtung für eine brennkraftmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0883739A1 true EP0883739A1 (de) | 1998-12-16 |
Family
ID=26032261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97949900A Withdrawn EP0883739A1 (de) | 1996-12-16 | 1997-11-10 | Drosselvorrichtung für eine brennkraftmaschine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0883739A1 (de) |
JP (1) | JP2000505861A (de) |
CN (1) | CN1211301A (de) |
WO (1) | WO1998027326A1 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59215932A (ja) * | 1983-05-23 | 1984-12-05 | Honda Motor Co Ltd | 気化器作動部の作動量調整装置 |
DE4006419C2 (de) | 1990-03-01 | 1998-12-24 | Bosch Gmbh Robert | Einrichtung mit einem Stellglied |
DE4014507A1 (de) * | 1990-05-07 | 1991-11-14 | Vdo Schindling | Lastverstelleinrichtung |
DE4209586A1 (de) * | 1992-03-25 | 1993-09-30 | Bosch Gmbh Robert | Drosseleinrichtung |
DE4241020A1 (de) * | 1992-12-05 | 1994-06-09 | Bosch Gmbh Robert | Drehsteller für Drosselklappe |
DE9317797U1 (de) * | 1993-11-20 | 1994-02-03 | Ab Elektronik Gmbh, 59368 Werne | Drosselklappenanordnung |
-
1997
- 1997-11-10 EP EP97949900A patent/EP0883739A1/de not_active Withdrawn
- 1997-11-10 CN CN 97192265 patent/CN1211301A/zh active Pending
- 1997-11-10 WO PCT/DE1997/002620 patent/WO1998027326A1/de not_active Application Discontinuation
- 1997-11-10 JP JP10527163A patent/JP2000505861A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO9827326A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1998027326A1 (de) | 1998-06-25 |
JP2000505861A (ja) | 2000-05-16 |
CN1211301A (zh) | 1999-03-17 |
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