WO2005075795A1 - Verbindungsvorrichtung für einen betätigungshebel und ein abstützelement einer ventilsteuerung einer brennkraftmaschine - Google Patents
Verbindungsvorrichtung für einen betätigungshebel und ein abstützelement einer ventilsteuerung einer brennkraftmaschine Download PDFInfo
- Publication number
- WO2005075795A1 WO2005075795A1 PCT/DE2005/000153 DE2005000153W WO2005075795A1 WO 2005075795 A1 WO2005075795 A1 WO 2005075795A1 DE 2005000153 W DE2005000153 W DE 2005000153W WO 2005075795 A1 WO2005075795 A1 WO 2005075795A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuating lever
- connecting device
- opening
- spherical
- lower leg
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre pivot rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L2001/187—Clips, e.g. for retaining rocker arm on pivot
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2301/00—Using particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20396—Hand operated
- Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2101—Cams
- Y10T74/2107—Follower
Definitions
- the invention relates to a connecting device for pivotally movable and captive connection of an actuating lever and a support element of a mechanical valve control of an internal combustion engine.
- a connecting device is known from DE 196 17 523 A1, in which such an actuating lever and a supporting element assigned to it are pivotally and captively connected by means of a securing element.
- This connecting device is particularly advantageous since these assembly problems can be avoided in the manufacture of a mechanical valve control of an internal combustion engine.
- the securing element known from this publication is designed as a sheet metal retaining clip, wire retaining bracket or plastic retaining cap, which inter alia engages in a backstitch in the supporting element below the spherical end of the same.
- this securing element has an essentially U-shaped cross-sectional geometry and holds two legs that are connected to each other via a connecting section. The first leg with a closed surface is attached to the rocker arm above a receiving cap, while the second, fork-shaped leg engages in the undercut of the support element projecting into the cap.
- both legs have retaining lugs at their free ends, with which the securing element can be locked captively on the rocker arm and on the supporting element.
- the two legs have circular or U-shaped receiving openings in the region of their free ends. While the lower leg of this securing element engages the supporting element, the upper leg with its receiving opening comprises part of the spherical upper side of the receiving dome in which the likewise spherically shaped upper side of the supporting element is mounted in the sense of a ball and socket joint.
- a disadvantage of this connecting device is that the support element is held by the sheet metal holding clip only in the manner of pliers and by means of frictional engagement. Since it is not intended to intervene in an undercut of the support element which is not present here, in the case of stronger mechanical loads If the rocker arm and support element fall apart.
- the invention has for its object to provide a connecting device for a rocker arm support element connection, which is suitable for rocker arms with different rocker arm geometries in the connection area to the support element.
- this connecting device is intended to ensure a secure, articulated and captive connection between the rocker arm and the support element, even with greater mechanical loads.
- the securing element of the connecting device which realizes the mechanical connection between these two components, should have a low tendency to get caught when it is stored in a container with other securing elements, and it should be possible to mount it automatically and to produce it inexpensively.
- the invention relates to a connecting device for the pivotally movable and captive connection of an actuating lever and a support element associated therewith of a valve control of an internal combustion engine, in which the actuating lever has a spherical recess in a support section, in which the spherical end of the support element is arranged, in which below its spherical Finally, an undercut is formed in the support element, in which the actuation lever has a spherical geometry in the support section above the spherical recess, and in which a securing element connects the actuation lever and the support element to one another.
- the securing element has a U-shaped cross-sectional geometry, an upper and a lower leg are connected to one another via a connecting section. Geometrically closed openings for receiving the backstitch of the support element or the spherical upper side of the support section of the actuating lever are also formed in the legs.
- the opening in the upper leg is essentially round and in the lower leg essentially slit-shaped.
- the actuating lever is designed as a rocker arm and the support element as an axially movable piston.
- the securing element it is considered to be advantageous if its material thickness is below the width of the backstitch, so that the backstitch can move freely in all pivoting positions of the actuating lever.
- the legs and in particular the connecting section of the securing element are smooth, which reduces the tendency of such a securing element to get caught in an assembly storage container and promotes easy attachment to the actuating lever and to the supporting element.
- the closed surface of the connecting section allows this component to be gripped with an automatic assembly suction gripper.
- the attachment of the securing element to the actuating lever between its side walls is facilitated if the legs of the securing element have insertion bevels in the region of their free ends, through which these legs are quasi pointed.
- a further simplification of assembly when assembling the actuating lever and support element can be achieved in a further development of the invention in that the free ends of the legs are designed to point away from each other.
- the fixing of the securing element on the support element is also favored if the slot-shaped opening in the lower leg has a stadium-like geometry, in which two mutually parallel opening sections are connected by semicircular opening sections.
- this opening in the lower leg which is necessary for plugging the securing element onto the supporting element, is further facilitated if an elongated hole-like extension of the opening with a preferably small opening width is formed on at least one of the semicircular opening sections mentioned.
- the partial sections of the lower leg can rotate relative to one another more easily when they are axially attached to the support element, so that the opening cross section increases briefly.
- the original smooth surface of the lower leg re-forms, so that this leg then engages captively in the undercut of the support element.
- the opening in the upper leg of the securing element is designed such that it finds a secure hold on the spherical, that is to say, for example, spherical head-shaped, upper side of the support section of the actuating lever.
- the opening width in the lower leg transverse to its longitudinal extent is smaller than the diameter of the opening of the upper leg.
- This combination ensures that with a given undercut depth there is sufficient hold on the spherical upper side of the actuating lever, or a sufficiently large undercut depth can be used with a given opening diameter in the upper leg. It is essential for a secure hold that the width of the opening in the lower leg transverse to the longitudinal extension thereof is smaller than the diameter of the support element above and below the understitch.
- the upper leg is axially shorter than the lower leg in this securing element.
- Another aspect relates to the distance between the two legs of the securing element. It is preferably provided that the connecting radius between the lower leg and the connecting section is smaller than the connecting radius between the same and the upper leg.
- the invention provides that the distance between the lower leg and the upper leg of the securing element near the connecting section is greater than in the region of the free end of the two legs.
- FIG. 1 shows a schematic side view of a rocker arm
- FIG. 2 shows a top view of the rocker arm according to FIG. 1
- FIG. 3 shows a cross-sectional view AA according to FIG. 2
- 4 shows a perspective view of a securing element for connecting the rocker arm to a supporting element
- FIG. 5 shows a side view of the securing element according to FIG. 4
- FIG. 6 shows a top view of the upper side of the securing element according to FIG. 4
- FIG. 7 shows a top view of the underside of the securing element 4.
- FIGS. 1 to 3 show an actuating lever designed as a rocker arm 1 of a mechanical valve control of an internal combustion engine which is known and described at the outset.
- This rocker arm 1 is pivotable about a pivot axis 2 and has a support section 3, in which a spherical upper side 4 of a spherical recess 5 is formed between two wall sections of the rocker arm 1.
- the dome-shaped recess 5 accommodates a support element 6 for the rocker arm 1, which is designed here as an axially movable piston of a piston-cylinder arrangement (not shown).
- the support element 6 has a spherically shaped upper side 7 which fits exactly into the spherical recess 5 of the rocker arm 1. Underneath this upper side 7, an undercut 8 is formed in the support element 6, which serves to receive the securing element 9 shown in FIG. 4.
- This securing element 9 is designed here as a sheet metal component and has an upper leg 10 and a lower leg 11, which are connected to one another via a connecting section 12.
- the securing element 9 As the perspective illustration of the securing element 9 according to FIG. 4 illustrates, there are geometrically closed openings in the two legs 10, 11 trained, the function of which is explained with reference to Figures 5 to 7. It is important that the opening in the upper leg 10 is essentially circular and in the lower leg 11 is essentially slit-shaped. In addition, it is clear that the material webs engage on both sides of the elongated opening in the lower leg 11 in the undercut 8 of the support element 6, while the circular opening in the upper leg 10 is supported on the spherical upper side 4 of the rocker arm 1.
- the securing element 9 consists of a bent and inherently smooth sheet metal, in which a connecting section 12 connects an upper leg 10 and a lower leg 11 to one another.
- the securing element 9 is formed from a flat piece of sheet metal such that the bending or connecting radius between the lower leg 11 and the connecting section 12 is smaller than the bending or connecting radius between the same and the upper leg 10.
- FIG. 5 also discloses that the securing element 9 is shaped in such a way that the distance L2 between the upper leg 10 and the lower leg 11 in the region of the connecting section 12 is greater than the distance L1 in the region of the free ends 15, 16 of the same. This non-parallel alignment of the two legs 10, 11 results in a further increased mechanical pretensioning of the securing element 9 for connecting the rocker arm 1 and the supporting element 6.
- FIG. 5 also shows that the free ends 15, 16 of the two legs 10, 11 point away from one another, which enables this securing element to be mounted more easily for the pivotable and captive connection of an actuating lever 1 to the supporting element 6.
- the receiving openings in the two legs 10, 11 of the securing element 9 have different diameters and geometries, but both openings are not geometrically closed, but rather geometrically closed.
- the opening 13 in the upper leg 10 has an essentially circular geometry, as a result of which the spherically shaped upper side 4 of the support section 3 of the rocker arm 1 is well received there, or the securing element 9 can be supported there securely.
- the opening 14 in the lower leg 11 is essentially slit-shaped and, in the embodiment shown here, has a stadium-like design, two essentially parallel opening sections being connected to one another via two semicircular opening sections.
- elongated hole-like extensions 21, 22 are additionally formed on the semicircular opening sections, which ensure that the supporting element 6 is slipped on easily and that this lower leg 11 is easily clipped into the undercut 8 of the same.
- insertion bevels 17, 18, 19, 20 are formed on the free ends 15, 16 of the two legs 10, 11, which allow the securing element 9 to be inserted easily between the side walls of the rocker arm 1, which can be clearly seen in particular in FIG. 3 ,
- the diameter D1 of the opening 13 in the upper leg 10 is chosen to be larger than the opening width D2 in the lower leg 11 transverse to its longitudinal extent. This combination ensures that a sufficient hold on the spherical top of the rocker arm is achieved with a given undercut depth, or a sufficiently large undercut depth can be used with a given diameter of the opening 13 on the top of the rocker arm 1.
- FIGS. 5 to 7 show that the upper leg 10 is axially shorter than the lower leg 11.
- the somewhat longer lower leg 11 enables a comparatively long slot-shaped opening 14, which favors the centering of the securing element 6 and rocker arm 1.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05714915A EP1711691B1 (de) | 2004-02-06 | 2005-02-01 | Verbindungsvorrichtung für einen betätigungshebel und ein abstützelement einer ventilsteuerung einer brennkraftmaschine |
DE112005000102T DE112005000102D2 (de) | 2004-02-06 | 2005-02-01 | Verbindungsvorrichtung für einen Betätigungshebel und ein Abstützelement einer Ventilsteuerung einer Brennkraftmaschine |
US10/588,590 US20070131052A1 (en) | 2004-02-06 | 2005-02-01 | Joining device for an actuating lever and supporting element of a valve operating mechanism of an internal combustion engine |
US13/066,434 US8434441B2 (en) | 2004-02-06 | 2011-04-15 | Joining device for an actuating lever and supporting element of a valve operating mechanism of an internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004005831A DE102004005831A1 (de) | 2004-02-06 | 2004-02-06 | Verbindungsvorrichtung für einen Betätigungshebel und ein Abstützelement einer Ventilsteuerung einer Brennkraftmaschine |
DE102004005831.8 | 2004-02-06 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/588,590 A-371-Of-International US20070131052A1 (en) | 2004-02-06 | 2005-02-01 | Joining device for an actuating lever and supporting element of a valve operating mechanism of an internal combustion engine |
US13/066,434 Continuation US8434441B2 (en) | 2004-02-06 | 2011-04-15 | Joining device for an actuating lever and supporting element of a valve operating mechanism of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005075795A1 true WO2005075795A1 (de) | 2005-08-18 |
Family
ID=34801659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/000153 WO2005075795A1 (de) | 2004-02-06 | 2005-02-01 | Verbindungsvorrichtung für einen betätigungshebel und ein abstützelement einer ventilsteuerung einer brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (2) | US20070131052A1 (de) |
EP (1) | EP1711691B1 (de) |
CN (1) | CN100432377C (de) |
DE (2) | DE102004005831A1 (de) |
WO (1) | WO2005075795A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006048342A1 (de) * | 2006-10-12 | 2008-04-17 | Schaeffler Kg | Schlepphebel |
WO2014079425A1 (de) * | 2012-11-26 | 2014-05-30 | Schaeffler Technologies AG & Co. KG | Halteklammer für motorkomponenten |
EP3549834A3 (de) * | 2018-03-31 | 2019-10-16 | WABCO Europe BVBA | Vorrichtung zum verbinden eines betätigungshebels mit einem steuerschieber eines steuerventils |
DE102008052281B4 (de) * | 2008-10-18 | 2020-01-16 | Schaeffler Technologies AG & Co. KG | Hebelartiger Nockenfolger zur Betätigung eines Gaswechselventils einer Brennkraftmaschine |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5186170B2 (ja) * | 2007-10-05 | 2013-04-17 | 矢崎総業株式会社 | 導電部材、その導電部材を有するコネクタ |
DE102008029293A1 (de) | 2008-06-19 | 2009-12-24 | Schaeffler Kg | Verbindungselement zur verliersicheren Halterung eines hebelartigen Nockenfolgers |
JP5355299B2 (ja) * | 2009-08-19 | 2013-11-27 | 株式会社オティックス | 連結部材 |
KR101316976B1 (ko) | 2009-09-29 | 2013-10-11 | 나그라아이디 시큐리티 에스에이 | 광학 스위치가 있는 포터블 전자 장치 |
JP2018058383A (ja) * | 2016-09-30 | 2018-04-12 | トヨタ自動車株式会社 | 車両下部構造 |
DE102016220941A1 (de) * | 2016-10-25 | 2018-04-26 | Schaeffler Technologies AG & Co. KG | Ventilbetätigungshebel und dessen Herstellung für Hubkolbenbrennkraftmaschinen |
FR3080647B1 (fr) * | 2018-04-26 | 2020-11-27 | Renault Sas | Ensemble de linguet comportant un moyen de detrompage. |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB963995A (en) * | 1959-11-13 | 1964-07-15 | Renault | Improvements in or relating to internal combustion engine valve gear arrangements |
US3542001A (en) * | 1968-10-25 | 1970-11-24 | Eaton Yale & Towne | Hydraulic lifter with lash compensator |
DE2309460A1 (de) * | 1973-02-26 | 1974-08-29 | Scherdel Kg Sigmund | Halteklammer mit verbindungselement fuer einseitig gelagerte hebel |
US4676203A (en) * | 1984-01-13 | 1987-06-30 | Toyota Jidosha Kabushiki Kaisha | Rocker arm spring for a valve actuating mechanism of an internal combustion engine |
US5775280A (en) * | 1996-05-02 | 1998-07-07 | Ina Walzlager Schaeffler Kg | Securing device for an actuating lever in a valve control mechanism of internal combustion engines |
US6047675A (en) * | 1998-11-10 | 2000-04-11 | General Motors Corporation | Retainer clip and valve actuator subassembly |
WO2000020730A1 (en) * | 1998-10-05 | 2000-04-13 | Eaton Automotive S.P.A. | Valve train assembly |
Family Cites Families (16)
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FR1025103A (fr) * | 1949-09-06 | 1953-04-10 | Ft Products Ltd | Attache |
GB1032544A (en) * | 1963-11-19 | 1966-06-08 | Ft Products Ltd | An improved fastener |
US3312444A (en) * | 1965-05-06 | 1967-04-04 | Sena Joseph De | Artist's workbench and easel clamp |
US3501117A (en) * | 1968-05-31 | 1970-03-17 | Illinois Tool Works | Clip device |
JPS60147510A (ja) * | 1984-01-13 | 1985-08-03 | Toyota Motor Corp | 内燃機関動弁系のエンドピボツト式ロツカ−ア−ムのスプリング |
US5596792A (en) * | 1996-05-20 | 1997-01-28 | L&P Property Management Company | Light guard attachment clamp |
DE19640919A1 (de) * | 1996-10-04 | 1998-04-09 | Schaeffler Waelzlager Ohg | Ventiltrieb für eine Brennkraftmaschine |
DE19644374A1 (de) * | 1996-10-25 | 1998-04-30 | Schaeffler Waelzlager Ohg | Kipp- oder Schlepphebel für einen Ventiltrieb einer Brennkraftmaschine |
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JP3707723B2 (ja) * | 2000-05-09 | 2005-10-19 | 光洋精工株式会社 | ロッカアーム用クリップ |
JP3795320B2 (ja) * | 2000-11-20 | 2006-07-12 | 株式会社ジェイテクト | ロッカアーム用クリップ |
CN2462075Y (zh) * | 2001-01-08 | 2001-11-28 | 宜宾天工机械股份有限公司 | 一种能自动调节发动机气门间隙的液压挺杆 |
US6715720B2 (en) * | 2001-04-09 | 2004-04-06 | Taco Products, Inc. | Clip fixture having preferential collapse feature |
US6732983B1 (en) * | 2003-02-25 | 2004-05-11 | Joshua Blake | Cable clip |
US7322551B2 (en) * | 2005-01-25 | 2008-01-29 | Simonsen Joseph M | Portable article support apparatus |
US20070221154A1 (en) * | 2006-03-24 | 2007-09-27 | Gentek Technologies Marketing, Inc. | Anti-tipping roller follower |
-
2004
- 2004-02-06 DE DE102004005831A patent/DE102004005831A1/de not_active Withdrawn
-
2005
- 2005-02-01 EP EP05714915A patent/EP1711691B1/de not_active Expired - Fee Related
- 2005-02-01 CN CNB2005800041689A patent/CN100432377C/zh not_active Expired - Fee Related
- 2005-02-01 WO PCT/DE2005/000153 patent/WO2005075795A1/de active IP Right Grant
- 2005-02-01 DE DE112005000102T patent/DE112005000102D2/de not_active Ceased
- 2005-02-01 US US10/588,590 patent/US20070131052A1/en not_active Abandoned
-
2011
- 2011-04-15 US US13/066,434 patent/US8434441B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB963995A (en) * | 1959-11-13 | 1964-07-15 | Renault | Improvements in or relating to internal combustion engine valve gear arrangements |
US3542001A (en) * | 1968-10-25 | 1970-11-24 | Eaton Yale & Towne | Hydraulic lifter with lash compensator |
DE2309460A1 (de) * | 1973-02-26 | 1974-08-29 | Scherdel Kg Sigmund | Halteklammer mit verbindungselement fuer einseitig gelagerte hebel |
US4676203A (en) * | 1984-01-13 | 1987-06-30 | Toyota Jidosha Kabushiki Kaisha | Rocker arm spring for a valve actuating mechanism of an internal combustion engine |
US5775280A (en) * | 1996-05-02 | 1998-07-07 | Ina Walzlager Schaeffler Kg | Securing device for an actuating lever in a valve control mechanism of internal combustion engines |
WO2000020730A1 (en) * | 1998-10-05 | 2000-04-13 | Eaton Automotive S.P.A. | Valve train assembly |
US6047675A (en) * | 1998-11-10 | 2000-04-11 | General Motors Corporation | Retainer clip and valve actuator subassembly |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006048342A1 (de) * | 2006-10-12 | 2008-04-17 | Schaeffler Kg | Schlepphebel |
DE102008052281B4 (de) * | 2008-10-18 | 2020-01-16 | Schaeffler Technologies AG & Co. KG | Hebelartiger Nockenfolger zur Betätigung eines Gaswechselventils einer Brennkraftmaschine |
WO2014079425A1 (de) * | 2012-11-26 | 2014-05-30 | Schaeffler Technologies AG & Co. KG | Halteklammer für motorkomponenten |
EP3549834A3 (de) * | 2018-03-31 | 2019-10-16 | WABCO Europe BVBA | Vorrichtung zum verbinden eines betätigungshebels mit einem steuerschieber eines steuerventils |
Also Published As
Publication number | Publication date |
---|---|
US20070131052A1 (en) | 2007-06-14 |
DE102004005831A1 (de) | 2005-08-25 |
US20110214527A1 (en) | 2011-09-08 |
DE112005000102D2 (de) | 2006-08-17 |
EP1711691B1 (de) | 2008-04-23 |
US8434441B2 (en) | 2013-05-07 |
EP1711691A1 (de) | 2006-10-18 |
CN100432377C (zh) | 2008-11-12 |
CN1930375A (zh) | 2007-03-14 |
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