EP0915010A2 - Hydraulikanlage für ein Schiff - Google Patents
Hydraulikanlage für ein Schiff Download PDFInfo
- Publication number
- EP0915010A2 EP0915010A2 EP98120377A EP98120377A EP0915010A2 EP 0915010 A2 EP0915010 A2 EP 0915010A2 EP 98120377 A EP98120377 A EP 98120377A EP 98120377 A EP98120377 A EP 98120377A EP 0915010 A2 EP0915010 A2 EP 0915010A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- valve
- hydraulic system
- oil circuit
- pump
- 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- Withdrawn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
- 238000009434 installation Methods 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000007935 neutral effect Effects 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010034016 Paronychia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/30—Transmitting power from propulsion power plant to propulsive elements characterised by use of clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
- B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
- B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/615—Filtering means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/62—Cooling or heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
Definitions
- the invention relates to a hydraulic system for a ship according to the preamble of claim 1.
- Known hydraulic systems therefore comprise two hydraulic systems.
- the first hydraulic system for the transmission is for the Gear lubrication and for the operation of the usual provided as a multi-plate clutch gear coupling.
- a separate one is used to operate the variable pitch propeller second hydraulic system used.
- variable displacement pumps In contrast, one has so far for the second hydraulic system with the second associated oil circuit for operating the second adjustment valve of the variable pitch propeller as an oil pump a variable displacement pump is used.
- Variable displacement pumps generally considered optimal because of their mode of action Pump oil in the oil circuit only if the variable valve must be operated for the variable pitch propeller. in the Idle state, i.e. when the adjustment valve is not actuated there is no oil production, even though the variable pump is continuously driven by the gearbox via a PTO shaft.
- the variable pitch propeller or the corresponding second variable valve has been operated comparatively rarely so far the use of a variable displacement pump to save energy enforced for the second oil circuit.
- the invention is based, while maintaining the task a common oil sump a hydraulic system for a Specify ship, which despite air bubbles in the oil circuit enables safe actuation of the ship's propeller.
- the invention comes for the first time Oil feed pump of the second oil circuit for the variable pitch propeller assigned variable valve a constant pump for Use as in the first oil circuit for actuation the gear coupling is provided.
- the invention goes assume that the operation of a constant pump to promote a constant amount of oil due to air bubbles in the oil in the Practice is only negligibly influenced.
- the second Parking valve operated with the help of control oil, this Control oil via a control oil line to the first oil circuit is removed.
- the invention surprisingly solves the contradiction which is that, on the one hand, the previous one for energy reasons Use of a variable displacement pump for the second variable valve was sensible, and that on the other hand the use of a Constant pump due to the influence of air bubbles in the oil allows the pump to function safely, although the Constant pump is continuously in operation and continuously oil promotes that, however, for reasons of energy saving Constant pump for the variable valve of the variable pitch propeller doesn't make sense.
- the invention provides another feature before that the control oil through a control oil line from the first Oil circuit is removed. It is assumed that a fine filter is provided in the first oil circuit, and that thus very clean oil is conveyed in the first oil circuit becomes. This clean oil ensures safe and secure reliable control or activation of the second adjustment valve for the variable pitch propeller.
- the hydraulic system for a ship shown in Fig. 1 is for actuating the gear coupling 20 of a gear 18 and for adjusting a driven by the transmission 18 Variable propeller 17 is provided.
- the one driving the transmission 18 Ship engine is for reasons of clarity Drawing not shown.
- a first hydraulic system is used to actuate the transmission clutch 20 provided which a constant pump 1, a Includes fine filter 2 and an oil cooler 3, on which a pressure relief valve 4 connects, whereby a first Oil circuit is formed.
- a first Oil circuit In this oil circuit one becomes in the housing of the gear 18 oil sump 12 continuously Oil extracted.
- the gearbox clutch is actuated via a connected to the oil production circuit Switch valve 5, which is designed as a black / white valve is. This flows when the switching valve is closed Oil delivered by the constant pump 1 via the pressure relief valve 4 back, while with the switching valve 5 and a smaller proportion when the switching valve is actuated of the oil flows into the clutch 20.
- the pressure relief valve 4 is that for the gear coupling 20 required pressure set, and by actuation of the switching valve 5 becomes the transmission clutch on or off.
- the electrical control of the Switching valve 5 is carried out by an electronic control device 11, through which the switching valve 5 for actuation can be activated.
- the Hydraulic system a second hydraulic system with a second Oil circuit for the actuation of the variable pitch propeller 17.
- this second oil circuit includes an oil pump Constant pump 6, a coarse filter 7, and a controllable and adjustable pressure relief valve 8.
- Parallel to this Pressure relief valve 8 is an adjusting valve special valve arrangement in the form of a proportional directional valve 9.
- a first oil line leads from the proportional directional valve 9 13 and a second oil line 14 to an adjusting cylinder 10.
- This has a rod side in a manner known per se 15 and a piston side 16 and serves to adjust the Variable pitch propeller 17.
- Fig. 2 shows the proportional directional control valve 9 in its neutral position.
- the pressure relief valve 8 is on such Value set that the constant pump 6 (see Fig. 1) Oil extracted from the common oil sump 12 the least resistance via the oil line 21 (Pressure line) and via the tank line T back into the oil sump 12 takes. In the neutral position there is therefore an off Energy-efficient advantageous simple unpressurized circulation of the Oil.
- Fig. 3 shows the proportional directional control valve 9 in a first Working position for actuating the adjusting cylinder 10 (cf. Fig. 1) on lines 13 and 14.
- the proportional directional valve 9 initially via the electronic Control device 11 and via the control oil line X in the Actuated that the working position shown in Fig. 3 is taken. In this working position it is before described pressure-free circulation of the oil canceled.
- the oil from the constant pump 6 is rather via the line 21 and via line 13 to the rod side 15 of the adjusting cylinder 10 headed.
- the oil pressure rises as a result to the value set on the pressure relief valve 8. That displaced on the piston side 16 of the adjusting cylinder 10 Oil flows through the second oil line 14 and through the permeable Proportional directional control valve 9 and via line T in the common oil sump 12 back, so that with the help of the adjusting cylinder 10 of the variable pitch propeller 17 in a first Direction can be adjusted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
- Fig. 1
- Ein schematisches Blockschaltbild einer erfindungsgemäßen Hydraulikanlage, und
- Fig. 2-4
- jeweils eine Darstellung eines zweiten Verstellventils in unterschiedlichen Betriebsfunktionen.
Claims (3)
- Hydraulikanlage für ein Schiff, welches mit einem Verstellpropeller versehen ist, der von einem Motor über ein Getriebe angetrieben wird, wobei die Hydraulikanlage ein erstes Hydrauliksystem mit einer ersten, als Konstantpumpe ausgebildeten Ölförderpumpe in einem ersten Ölkreislauf für ein erstes Verstellventil zur Betätigung einer Getriebekupplung und ein zweites Hydrauliksystem mit einer zweiten Ölförderpumpe in einem zweiten Ölkreislauf für ein zweites Verstellventil zur Betätigung des Verstellpropellers in zwei Richtungen umfaßt, und wobei das erste und zweite Hydrauliksystem aus einem gemeinsamen Ölsumpf im Getriebegehäuse gespeist sind, dadurch gekennzeichnet , daß die zweite Ölförderpumpe eine Konstantpumpe (6) ist, daß das zweite Verstellventil (9) a) ein Proportional-Wegeventil mit zwei Arbeitsstellungen und eine einen drucklosen Umlauf des Öls des zweiten Ölkreislaufs ermöglichende Neutralstellung ist, oder b) ein Proportional-Wegeventil mit zwei Arbeitsstellungen und einer Sperrstellung, in welcher der zweite Ölkreislauf über ein auf einen minimalen Druckwiderstand einstellbares Druckbegrenzungsventil (8) verläuft ist, oder c) ein Schwarz-Weiß-Wegeventil mit zwei Arbeitsstellungen ist, wobei im Aus-Zustand des Schwarz-Weiß-Wegeventils der zweite Ölkreislauf ebenfalls über ein auf einen minimalen Druckwiderstand einstellbares Druckbegrenzungsventil (8) verläuft, daß das zweite Verstellventil mit Hilfe von Steueröl betätigt ist und daß das Steueröl über eine Steuerölleitung (X) aus dem ersten Ölkreislauf entnommen wird.
- Hydraulikanlage nach Anspruch 1, dadurch gekennzeichnet , daß das zweite Verstellventil (9) von einer elektronischen Steuerung (11) ansteuerbar und aktivierbar ist.
- Hydraulikanlage nach Anspruch 1 und/oder 2, dadurch gekennzeichnet , daß in der von der Konstantpumpe (6) zum zweiten Verstellventil (9) führenden Ölleitung ein Grobfilter (7) angeordnet ist.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19749442 | 1997-11-10 | ||
| DE19749442 | 1997-11-10 | ||
| DE19823776A DE19823776C2 (de) | 1997-11-10 | 1998-05-28 | Hydraulikanlage für ein Schiff |
| DE19823776 | 1998-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0915010A2 true EP0915010A2 (de) | 1999-05-12 |
| EP0915010A3 EP0915010A3 (de) | 2001-09-05 |
Family
ID=26041437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98120377A Withdrawn EP0915010A3 (de) | 1997-11-10 | 1998-10-28 | Hydraulikanlage für ein Schiff |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0915010A3 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806583A (zh) * | 2015-04-29 | 2015-07-29 | 中船重工重庆智能装备工程设计有限公司 | 一种新型船用主推调距桨液压伺服系统和方法 |
| CN109915431A (zh) * | 2019-04-10 | 2019-06-21 | 中国船舶重工集团公司第七0四研究所 | 调距桨液压系统冗余控制阀组 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2044651A1 (de) * | 1969-05-12 | 1971-02-26 | Wieczorek Julien | |
| CH500862A (de) * | 1969-06-26 | 1970-12-31 | Escher Wyss Ag | Verstellvorrichtung für die Flügel eines Schiffspropellers, einer Kaplanturbine oder dergleichen, mit einem in der Flügelnabe oder der Welle angeordneten hydraulischen Stellmotor |
| IT1211647B (it) * | 1987-07-10 | 1989-11-03 | Sintec Srl | Struttura di supporto per timone, elica e linea d'asse per navi di qualsiasi tipo ed uso |
-
1998
- 1998-10-28 EP EP98120377A patent/EP0915010A3/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| None |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806583A (zh) * | 2015-04-29 | 2015-07-29 | 中船重工重庆智能装备工程设计有限公司 | 一种新型船用主推调距桨液压伺服系统和方法 |
| CN109915431A (zh) * | 2019-04-10 | 2019-06-21 | 中国船舶重工集团公司第七0四研究所 | 调距桨液压系统冗余控制阀组 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0915010A3 (de) | 2001-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2733054C2 (de) | Vorrichtung zur Zufuhr von unter Druck stehendem Fluid | |
| DE2435602C3 (de) | Selbsttätige Steuereinrichtung zur Verteilung des Druckmittels auf zwei Hydrauliksysteme | |
| DE4004854A1 (de) | Hydraulische steuereinrichtung | |
| DE2208842C2 (de) | Antrieb einer Lenkeinrichtung und mehrerer Zubehörgeräte für Fahrzeuge durch ein hydrostatisches Getriebe | |
| EP0620371A1 (de) | Hydrauliksystem zur Versorgung offener oder geschlossener Hydraulikfunktionen | |
| DE3149026C2 (de) | ||
| DE60016463T2 (de) | Fluidregelventil und platte mit einem filter | |
| DE3247004A1 (de) | Hydrostatisches getriebe, insbesondere fuer den fahrzeugantrieb | |
| EP3896312A1 (de) | Hydraulische anordnung für ein fahrzeuggetriebe | |
| DE3219730C2 (de) | ||
| DE2521533A1 (de) | Betaetigungsschaltung mit unter druck stehendem stroemungsmittel | |
| DE3630792C2 (de) | Druckerzeugungseinrichtung | |
| EP0915010A2 (de) | Hydraulikanlage für ein Schiff | |
| DE69003414T2 (de) | Hydraulischer Kreis zum Gebrauch in Hebemechanismen bei Arbeitsfahrzeugen. | |
| DE19823776C2 (de) | Hydraulikanlage für ein Schiff | |
| EP1253327B1 (de) | Hydraulische Steuereinrichtung | |
| DE1600352B2 (de) | Schmiersystem für eine Kraftmaschine | |
| DE4418881A1 (de) | Hubwerkregelsystem mit Regelventil | |
| DE102006039698B3 (de) | Förderpumpe | |
| DE102022002578A1 (de) | Hydraulische Steuervorrichtung, Doppelkupplung mit einer solchen Steuervorrichtung und Verfahren zum Betrieb einer solchen Steuervorrichtung | |
| EP0224156A2 (de) | Hydrauliksystem mit einem hydraulischen Motor und einem druckgesteuerten Ventil | |
| DE3900057A1 (de) | Hydraulische steuereinheit | |
| DE102023129649A1 (de) | Hydraulische Anordnung und Nutzfahrzeug | |
| DE102023129650A1 (de) | Hydraulische Anordnung und Nutzfahrzeug | |
| DE4140860C2 (de) | Steuereinrichtung für ein hydrostatisches Getriebe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: REINTJES GMBH |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7B 63H 3/08 A, 7B 63H 23/30 B, 7F 15B 21/00 B, 7F 15B 11/17 B |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| AKX | Designation fees paid | ||
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20020306 |