EP1709334A1 - Accumulateur de pression, en particulier amortisseur de pulsations - Google Patents

Accumulateur de pression, en particulier amortisseur de pulsations

Info

Publication number
EP1709334A1
EP1709334A1 EP05700985A EP05700985A EP1709334A1 EP 1709334 A1 EP1709334 A1 EP 1709334A1 EP 05700985 A EP05700985 A EP 05700985A EP 05700985 A EP05700985 A EP 05700985A EP 1709334 A1 EP1709334 A1 EP 1709334A1
Authority
EP
European Patent Office
Prior art keywords
fluid
pressure accumulator
gas
working
bellows
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.)
Granted
Application number
EP05700985A
Other languages
German (de)
English (en)
Other versions
EP1709334B1 (fr
Inventor
Herbert Baltes
Markus Lehnert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hydac Technology GmbH
Original Assignee
Hydac Technology GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hydac Technology GmbH filed Critical Hydac Technology GmbH
Publication of EP1709334A1 publication Critical patent/EP1709334A1/fr
Application granted granted Critical
Publication of EP1709334B1 publication Critical patent/EP1709334B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
    • F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/22—Liquid port constructions
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/205—Accumulator cushioning means using gas
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/32—Accumulator separating means having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/41—Liquid ports
    • F15B2201/413—Liquid ports having multiple liquid ports
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/415—Gas ports

Definitions

  • Pressure accumulator in particular pulsation dampers
  • the invention relates to a pressure accumulator, in particular a pulsation damper with a accumulator housing and a piston part arranged therein, wherein a bellows-like separating member is supported at one end on the piston part and at the other end on the accumulator housing, and the separating member has two working spaces, in particular a gas space from a fluid space separates in a fluid-tight, in particular gas-tight, manner from one another within the storage housing.
  • hydropneumatic pressure accumulators with a bellows separating a gas space from an oil space within the storage housing, in particular in the form of a metal bellows, which is attached at one end to the storage housing in such a way that the oil space adjoins the inside of the bellows, which is closed at its free other end by a corresponding volume change of the gas space and the oil space as the two working spaces of the accumulator closing body, and with a the flow of hydraulic fluid from and into the oil space releasing or blocking Valve, which when moving the closing body, the one- NEN predefined maximum value corresponds to an increase in the volume of the gas space through which the closing body can be moved into its blocking position, the closing body being designed in the form of a trough, the bottom of which is designed as a movable valve member of the valve controlling the flow of hydraulic fluid.
  • a valve tappet of the valve connected to the oil space is arranged relative to the closing body of the metal bellows in such a positional relationship that the closing body of the metal bellows, designed as a flat end plate, reaches the valve tappet when a desired one is reached End position acted upon and shifted into the blocking position of the valve, so that the outflow of hydraulic fluid from the oil space is prevented when the end plate of the metal bellows is reached in this end position.
  • a valve tappet attached to the trough bottom is additionally provided, which extends concentrically to the longitudinal axis from the storage housing and is connected to a second movable valve member which, at a predetermined minimum value of the volume of the gas space Excessive movement of the trough cooperates with a second valve seat blocking the flow of hydraulic fluid into the oil space, so that there is the advantageous possibility of also controlling the end position of the trough corresponding to the minimum value of the volume of the gas space with the aid of an oil-side valve.
  • the storage housing can be shaped in such a way that it forms a mechanical stop after a short lifting movement of the trough, because the entire interior of the trough is available as a gas space volume, and in this respect the metal bellows as a whole is not only protected against excessive pulling out , but since it surrounds the outside of the above-mentioned trough, the bellows is also mechanically supported on the outside of the trough over its entire length when there is excess pressure in the gas space.
  • the very low “dead volume" between the trough and the bellows it cannot be ruled out that individual folds of the metal bellows are exposed to excessive stress and can tear and fail in this way.
  • the invention has for its object to further improve the known pressure storage solutions while maintaining their advantages in such a way that in a very small space, a high degree of damping with regard to the pulsations of the hydraulic fluid including fuel, such as diesel fuel, as well Fluid is reached in the fluid space of the pressure accumulator, while at the same time realizing effective protection for each individual fold or deflection of the bellows, in order to ensure functionally reliable operation even over very long cycle times with a large number of changing load cycles.
  • a related problem is solved by a pressure accumulator with the features of claim 1 in its entirety.
  • the one working space is filled with a fluid in addition to a predeterminable volume fraction of a working gas, the working gas allows compression to a predeterminable degree, and in this way damping and smoothing the on the fluid side of the memory occurring pulsations of the fluid medium in question.
  • the volume of the gas space thus formed is correspondingly reduced by the fluid filling, and the working gas can be decoupled from the fluid in such a way that the fluid acts as a damping support medium between the folds and deflections of the bellows-like separating member occur on the inside thereof, so that during the opening and upsetting processes of the bellows during operation of the pressure accumulator, the wall parts of the bellows folded in this way can be supported on the fluid as a counter bearing, which leads to a demonstrable increase in the Lifespan of the pressure accumulator according to the invention and thus leads to an increase in its functional reliability.
  • the latter applies particularly to rapid pulsations and rapid pressure surges.
  • the fluid can be displaced into the working space with the other working gas or can be called up from there back into the spaces between the folds for supporting processes.
  • a fluid is used that can flow very quickly as a thin medium within the working space with the working gas, and furthermore the fluid must be suitable in the area of the Design temperature for the pressure accumulator, for example from - 10 ° C to + 160 ° C to fulfill its intended task.
  • a fluid filling which ensures that little working gas gets in solution within the fluid, in order not to unnecessarily reduce the effective volume fraction of working gas for pressure shock absorption.
  • a combination of nitrogen gas as the working gas and ethylene alcohol as the fluid on the gas side of the store as the fluid filling has proven to be particularly advantageous.
  • the volume fractions of working gas and fluid are preferably chosen to be the same, or there is preferably slightly more fluid than working gas in the working space of the pressure accumulator. In the case of different exemplary embodiments, there is also the possibility of choosing the rooms and / or the filling quantity differently in terms of their size. It is then advantageous, however, to ensure that, just before the maximum travel is reached, the gas space is essentially filled with fluid.
  • the piston part on the actual fluid side of the accumulator can be provided with a cavity that can be filled with the additional fluid, so that the absorption capacity for hydraulic fluid, including fuels, is increased on the fluid side of the accumulator
  • the pressure accumulator for pulsation damping taking a different path from the previously known solutions, in which an attempt has been made to improve the working capacity of the accumulator by moving the intended cavity of the piston part to the side of the working area with the working gas (see WO 01/55602 A1).
  • the single figure shows a longitudinal section of the aforementioned embodiment of the pressure accumulator.
  • the illustrated embodiment of a pressure accumulator is intended in particular for use in fuel and heavy oil systems in order to dampen and smooth out pressure surges of the operating medium in question.
  • diesel fuel or the like is particularly considered.
  • Such a pressure accumulator could also be used in electrohydraulic brake systems, for example in vehicle construction.
  • the pressure accumulator shown has a storage housing designated as a whole as 10, with an essentially circular-cylindrical, pot-like main part 12.
  • the main part 12 has a cover part 14, as seen in the direction of view of the figure, which can be connected to the pot-like main part 12 via a screw-in section 16 is, and a sealant in the form of a sealing ring 18 is the inside of the storage housing 10 sealed off from the environment.
  • the cover part 14 can be provided with a material recess 20, and along the longitudinal axis 22 of the memory, the cover part 14 is penetrated by an end screw 24, after removal of which by means of a suitable device (not shown) there is working gas, for example in the form of Allow nitrogen gas and / or a fluid, for example in the form of ethylene glycol, to be introduced into one working space 26 of the pressure accumulator, which is usually also referred to as a gas space in conventional accumulators.
  • a suitable device not shown
  • working gas for example in the form of Allow nitrogen gas and / or a fluid, for example in the form of ethylene glycol
  • a piston part 28 present within the accumulator housing 10 is arranged to be axially longitudinally movable along the longitudinal axis 22 of the accumulator. Furthermore, a bellows-like separating member 30 extends along the outer circumferential side of the piston part 28 and is supported with its one end 32 on the piston part 28 and with its other end 34 on an annular extension 36 of the cover part 14 which projects downwards.
  • the separating member 30 is preferably designed in the manner of a metal bellows, with a multiplicity of annular individual folds 38 or deflections which overlap the cylindrical piston part 28 on the outer circumference with a predeterminable distance in the manner of a pleating.
  • the piston part 28 separates the one working space 26, also referred to as the gas space, from another second working space 40, which is also referred to as a fluid space in the case of pressure accumulators.
  • the annular extension 36 of the cover part 14, which is to be regarded as part of the storage housing 10, has on its inside a cylindrical guide surface 42 within which the upper end of the piston part 28 can be moved longitudinally while maintaining a radial distance in the type of an annular gap 44 is performed. Furthermore, when viewed in the direction of the figure, the storage housing 10 has a cylindrical connection piece 46 on its underside, with two fluid connections 48, 50 which open into a common antechamber 52 within the connection piece 46.
  • the two fluid connections 48, 50 enter or leave the connection stub 46 at a right angle to the longitudinal axis 22 of the pressure accumulator and it has proven to be advantageous in the sense of an optimized flow guidance if vertically through deflection points 54 running at right angles thereto the respective orientation of the fluid connection 48, 50, the fluid guidance is carried out in this way.
  • the fluid connections 48, 50 enter or exit the connection stub 46 at the same height and jointly lead into the antechamber 52 over the same distance, due to the deflection points 54 having the same effect.
  • the piston part 28 has a cylindrical cavity 56 which, apart from a reduced wall thickness, essentially fills the piston part 28.
  • the piston part 28 In the area of the connection between the bellows-shaped separating member 30 and the piston part 28 at its one end 32, the piston part 28 has a ring-widening stop 58 for abutting the associated, adjacent inner wall 60 of the storage housing 10, into which the antechamber 52 of the connecting piece 46 ends.
  • the piston part 28 is also at its end opposite the stop 58 with a stop surface 62 provided transversely to the longitudinal axis 22 of the memory, which is used to strike a further opposite inner wall 64 of the memory housing 10, preferably formed by the cover part 14. With the stop surfaces formed in this way, a type of overload protection is ensured, which helps to prevent the metal bellows from being compressed or expanded by pulling apart.
  • the relevant working space 26 is filled with a working gas, for example nitrogen gas, which in this respect absorbs the pressure surges in the sense of smoothing or damping, which are introduced into the reservoir on the fluid side 40.
  • a working gas for example nitrogen gas
  • Any heating that occurs in the area of the metal bellows as a bellows-like separating member 30 can also be well done with the fluid introduced into the working space 26, in particular re master in the form of ethylene glycol, which, moreover, has a good inflow and outflow behavior as a low-viscosity medium and also dissolves little working gas, which is necessary for the damping behavior of the accumulator.
  • an insert for a rubber bellows is intended as a bellows-type separating member 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Pipe Accessories (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP05700985A 2004-01-29 2005-01-18 Accumulateur de pression, en particulier amortisseur de pulsations Active EP1709334B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004004341A DE102004004341A1 (de) 2004-01-29 2004-01-29 Druckspeicher, insbesondere Pulsationsdämpfer
PCT/EP2005/000410 WO2005073564A1 (fr) 2004-01-29 2005-01-18 Accumulateur de pression, en particulier amortisseur de pulsations

Publications (2)

Publication Number Publication Date
EP1709334A1 true EP1709334A1 (fr) 2006-10-11
EP1709334B1 EP1709334B1 (fr) 2007-10-31

Family

ID=34801157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05700985A Active EP1709334B1 (fr) 2004-01-29 2005-01-18 Accumulateur de pression, en particulier amortisseur de pulsations

Country Status (7)

Country Link
US (1) US7857006B2 (fr)
EP (1) EP1709334B1 (fr)
JP (1) JP5059414B2 (fr)
AT (1) ATE377156T1 (fr)
DE (2) DE102004004341A1 (fr)
DK (1) DK1709334T3 (fr)
WO (1) WO2005073564A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008175A1 (de) * 2006-02-22 2007-08-23 Hydac Technology Gmbh Druckspeicher, insbesondere Pulsationsdämpfer
DE102007003724A1 (de) * 2007-01-25 2008-07-31 Hydac Technology Gmbh Druckbehälter, insbesondere Hydrospeicher
US20090099725A1 (en) * 2007-09-12 2009-04-16 Pesch Michael R Electronic mileage logger
KR20110065551A (ko) * 2008-10-03 2011-06-15 이턴 코포레이션 유압 어큐물레이터 및 제조 방법
EP2519747B1 (fr) 2009-12-30 2013-10-09 Hydac Technology Gmbh Dispositif de guidage pour soufflet métallique
DK2519748T3 (en) * 2009-12-30 2017-01-30 Hydac Technology Gmbh Hydraulic accumulator, especially bellows accumulator
DE102009060852A1 (de) 2009-12-30 2011-07-07 HYDAC Technology GmbH, 66280 Hydrospeicher, insbesondere Pulsationsdämpfer
DE102010063352B4 (de) * 2010-12-17 2022-09-15 Robert Bosch Gmbh Pulsationsdämpfer einer Fahrzeugbremsanlage
US8656959B2 (en) 2011-09-23 2014-02-25 GM Global Technology Operations LLC Hydraulic accumulator
DE102011117533B4 (de) * 2011-11-03 2020-10-08 Woodward L'orange Gmbh Druckspeicher sowie Kraftstoffeinspritzeinrichtung mit einem solchen
DE102011117752A1 (de) * 2011-11-05 2013-05-08 Hydac Technology Gmbh Hydrospeicher in Form eines Balgspeichers
DE102013011115A1 (de) * 2013-07-03 2015-01-08 Hydac Technology Gmbh Vorrichtung zum Einstellen eines Mediendruckes gegenüber einem Umgebungsdruck
DE102014001283A1 (de) 2014-02-01 2015-08-06 Hydac Technology Gmbh Druckspeicher
EP3306109B1 (fr) * 2015-05-29 2022-04-27 Eagle Industry Co., Ltd. Accumulateur de type à soufflet métallique
WO2018207654A1 (fr) 2017-05-11 2018-11-15 イーグル工業株式会社 Accumulateur
US10876668B2 (en) * 2018-06-13 2020-12-29 Performance Pulsation Control, Inc. Precharge manifold system and method
CH716345B1 (de) * 2019-06-24 2023-02-28 Schlumpf Innovations Gmbh Pulsationsdämpfer.

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916052A (en) * 1955-01-04 1959-12-08 Melville F Peters Energy transfer system
US3467140A (en) * 1965-07-16 1969-09-16 Ralph P Piffath Hermetical sealing mechanism
US3862646A (en) * 1973-12-17 1975-01-28 Parker Hannifin Corp Combined filling tube and pressure indicator
US3933172A (en) * 1975-02-24 1976-01-20 Grove Valve And Regulator Company Pipeline surge reliever with sanitary barrier
JPH0249401B2 (ja) 1983-12-29 1990-10-30 Eagle Ind Co Ltd Beroozuakyumureeta
JPS624774A (ja) * 1985-06-28 1987-01-10 Ube Ind Ltd 蓄熱用液体組成物および蓄熱方法
US4685491A (en) * 1986-08-14 1987-08-11 Allied Corporation Accumulator having fluid-lubricating seals
JPS647901U (fr) 1987-07-03 1989-01-17
JPH0267136A (ja) 1988-09-01 1990-03-07 Mitsubishi Heavy Ind Ltd インキ遠隔調整装置の原点調整方法
JPH02266101A (ja) * 1989-04-05 1990-10-30 Nhk Spring Co Ltd アキュムレータ
DE3917797A1 (de) * 1989-06-01 1990-12-06 Bosch Gmbh Robert Druckmittelspeicher, insbesondere fuer fahrzeug-bremsanlagen
US5205326A (en) * 1991-08-23 1993-04-27 Hydraulic Power Systems, Inc. Pressure response type pulsation damper noise attenuator and accumulator
DE59307956D1 (de) * 1992-10-10 1998-02-12 Hemscheidt Fahrwerktech Gmbh Hydropneumatisches federungssystem
JP3434307B2 (ja) 1992-10-30 2003-08-04 日本発条株式会社 アキュムレータ
US5771936A (en) * 1994-07-25 1998-06-30 Nok Corporation Accumulator, process and apparatus for making the same
US5638868A (en) * 1996-06-05 1997-06-17 Valcor Engineering Accumulator
DE19908089B4 (de) * 1999-02-25 2005-09-15 Hydac Technology Gmbh Hydrospeicher, insbesondere Pulsationsdämpfer
DE10003648A1 (de) * 2000-01-29 2001-08-09 Hydac Technology Gmbh Hydropneumatischer Druckspeicher
DE10009865B4 (de) * 2000-03-01 2007-12-13 Hydac Technology Gmbh Hydropneumatischer Druckspeicher, insbesondere Pulsationsdämpfer
JP2002013501A (ja) * 2000-06-30 2002-01-18 Nok Corp アキュムレータ
JP2003172301A (ja) * 2001-12-04 2003-06-20 Nhk Spring Co Ltd アキュムレータ
JP2003262201A (ja) * 2002-03-08 2003-09-19 Nok Corp アキュムレータ
DE10253012A1 (de) * 2002-04-26 2003-11-06 Continental Teves Ag & Co Ohg Druckmittelspeicher
DE10233481A1 (de) * 2002-07-24 2004-02-12 Hydraulik-Ring Gmbh Speicher für ein flüssiges Medium
JP3889370B2 (ja) * 2003-03-06 2007-03-07 日本発条株式会社 アキュムレータ
JP4718129B2 (ja) * 2003-07-30 2011-07-06 日本発條株式会社 車両用ブレーキシステム部品

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005073564A1 *

Also Published As

Publication number Publication date
ATE377156T1 (de) 2007-11-15
DK1709334T3 (da) 2008-03-17
EP1709334B1 (fr) 2007-10-31
DE502005001823D1 (de) 2007-12-13
DE102004004341A1 (de) 2005-08-18
US7857006B2 (en) 2010-12-28
US20090101222A1 (en) 2009-04-23
WO2005073564A1 (fr) 2005-08-11
JP2007519869A (ja) 2007-07-19
JP5059414B2 (ja) 2012-10-24

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