CN103370553A - Bearing arrangement for rapidly rotating shafts of vacuum pumps - Google Patents
Bearing arrangement for rapidly rotating shafts of vacuum pumps Download PDFInfo
- Publication number
- CN103370553A CN103370553A CN2012800093202A CN201280009320A CN103370553A CN 103370553 A CN103370553 A CN 103370553A CN 2012800093202 A CN2012800093202 A CN 2012800093202A CN 201280009320 A CN201280009320 A CN 201280009320A CN 103370553 A CN103370553 A CN 103370553A
- Authority
- CN
- China
- Prior art keywords
- bearing
- holding member
- outer race
- pump case
- abutment face
- 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.)
- Pending
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
- F16C27/066—Ball or roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
- F04D19/042—Turbomolecular vacuum pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/059—Roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/44—Centrifugal pumps
- F16C2360/45—Turbo-molecular pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
Bearing arrangement for rapidly rotating shafts of vacuum pumps, in particular turbomolecular pumps, having two bearing elements (12) which mount the shaft (10). At least one of the two bearing elements (12) has a bearing (16) having a bearing outer ring (20) which surrounds the rolling bodies (22). A damping element (32) is arranged between a pump housing (14) and the bearing outer ring (20). Furthermore, a holding element (28) which fixes the at least one damping element (32) is connected to the pump housing (14).
Description
Technical field
The present invention relates to a kind of for vacuum pump, the bearing means of the axle of the quick rotation of turbomolecular pump especially.In addition, the present invention relates to a kind of the have vacuum pump of corresponding bearing means, macromolecule vacuum pump especially.
Background technique
Pump shaft, such as the supporting of the rotor shaft of turbomolecular pump usually via rolling bearing, especially ball bearing is realized in pump case.For being known that between outer race and pump case, at least one the radially damping in two pump bearing spares is provided with damping member.Be typically provided with one or two damping ring of the cross section with rectangle as damping member.Especially, because the tolerance of the hardness of the fluctuation of damping ring and fluctuation can be created in the contact between the outer shroud of pump case and bearing.This causes damage of bearings.Because the outer shroud of bearing is pushing through at damping ring when mounted in the radial direction, can cause in addition the oblique position of outer shroud.Described oblique position also causes the damage of bearing.Be applied in hardness and tolerance aspect have high-quality damping ring and/or application have other for example the damping ring of the cross section of pincushion will be expensive.
Summary of the invention
The objective of the invention is, a kind of pump bearing spare is provided, wherein reduce the risk of damage of bearings and/or improve installability.
According to the present invention, the solution of described purpose is by a kind of according to claim 1 for vacuum pump, the especially bearing means realization of the axle of the quick rotation of turbomolecular pump.
The bearing element that has two supporting axles according to the bearing means of axle of the quick rotation for the supporting vacuum pump of the present invention.In two bearing elements at least one constitutes rolling bearing and has the outer race that surrounds rolling element.The second bearing can constitute rolling bearing equally, or for example also constitutes magnetic bearing.
Be supported with therein between the outer shroud of the pump case of axle of pump and bearing and be provided with at least one damping member.Preferably, damping member consists of circlewise, and surrounds outer race.Particularly preferably be the set-up mode that two or more damping members that consist of equally circlewise are arranged side by side in the axial direction.Particularly preferably be, at least one, preferably all damping members have cross section rectangle, especially foursquare.According to the present invention, the fixing holding member via being connected with pump case of at least one damping member is realized.This has the significant advantage according to the present invention: simplified installation.
Especially possible is, after bearing is installed holding member is set, wherein preferably realizes the distortion radially of at least one damping member by the installation holding member.Because the distortion radially of at least one damping member keeps the radial force of outer race to be applied on the outer race.By arrange can be after bearing be installed the holding member of installation possible be to determine the size of at least one damping member, so that outer race can be encased in the pump case in the situation that does not have large energy consumption.This advantage that has is, do not have when mounted axial force or only a small amount of responsive to axial force at least one damping member.Thus, also especially reduce outer race with respect to the longitudinal axis of axle or the danger of tilting with respect to the longitudinal axis of the bearing inner ring that is provided with in case of necessity.Possible is to cause the distortion of the restriction of at least one damping member by holding member, so that the responsive to axial force that limits is to outer race in addition.Thus, especially can compensate the tolerance of the material behavior of damping member at least and/or fluctuation and then reduce the risk of damage of bearings.
In the preferred improvement project of at least one in two bearing elements of bearing means, pump case has abutment face.At this, abutment face is set to, so that at least one damping member especially on the axial direction of axle, is arranged between holding member and the abutment face.Therefore, in preferred form of implementation, abutment face is axial abutment face, namely can transmit or bear the abutment face of the axial force that is relevant to the axle longitudinal axis.
Preferably, abutment face is formed in the pump case by especially annular depressed part.At this, depressed part is preferably outwardly open, so that can be inserted into the depressed part from the outside in simple mode at least one damping member is installed.Then, depressed part can seal in the axial direction by holding member.
In another preferred improvement project of the present invention, holding member has the especially bump of annular.The bump of described annular preferably extends basically in the axial direction, so that the bump of described annular extend in the depressed part in the mounted state of holding member.At this, in preferred improvement project, at least one, the damping member of structure is arranged between the abutment face of the bump of holding member and pump case especially circlewise.The bump of the especially annular of holding member can be used for holding member is felt relieved in pump case simultaneously.Holding member for example is fixed on the pump case realizes by the bolt that especially axially arranges.
In order to improve the heat radiation from rolling bearing, preferably at outer race and holding member, especially be provided with cavity between the bump of holding member, described cavity preferably is filled with the medium of transferring heat, the oiling agent of transferring heat especially.
In another particularly preferred form of implementation of the present invention, holding member additionally is used for the rigid bearing outer shroud.To this, holding member preferably has the protuberance that radially points to axle.Holding member, especially the protuberance of holding member has axial abutment face, indirectly or directly abuts on the described axial abutment face at installment state middle (center) bearing outer shroud.Preferably, at this, additionally between outer race and holding member, be provided with axial damping member for axial damping.Described axial damping member is posted by the axial outside of outer race and is posted by the protuberance of holding member in particularly preferred form of implementation axial abutment face.
As long as rolling bearing additionally has bearing inner ring, described bearing inner ring preferably is fixed on the axle.This can realize thus, and bearing inner ring presses to the shaft shoulder in the axial direction via fixed element.In case of necessity, also can abandon bearing inner ring, wherein the working surface that usually consists of by bearing inner ring of rolling element directly forms by the outside of axle.
The second bearing element of the axle of supporting vacuum pump for example can constitute magnetic bearing.Preferably, described rolling bearing has outer race, and described outer race is supported by at least one with being arranged on damping member damping between pump case and the outer race.At this, at least one damping member is fixed via corresponding holding member again.Described bearing also can advantageously be improved as mentioned with setting forth.
In addition, the present invention relates to a kind of vacuum pump, especially have the turbomolecular pump of the rotor element that is carried by bearing.Have a plurality of independent discoidal rotor element that comprise respectively a plurality of rotor blades at turbomolecular pump rotor element.Between described independent discoidal rotor element, be provided with the vaned stator component of same tool.Axle is supported in the pump case of surrounding rotor element, and wherein bearing means consists of as indicated abovely according to the present invention.
Description of drawings
Below, elaborate with reference to the accompanying drawings the present invention by means of preferred form of implementation.
Accompanying drawing illustrates one half-sectional view in two bearing meanss.
Embodiment
Vacuum pump has axle 10, and described bearing carries unshowned rotor element.Axle 10 wherein schematically shows clutch shaft bearing element 12 in the accompanying drawings by two bearing element supportings.Especially the bearing element of the other end of supporting axle 10 preferably can consist of corresponding to bearing element 12.By two bearing elements, axle 10 is bearing in the pump case 14.Bearing element 12 has with interior ring 18, outer shroud 20 and is arranged on the bearing 16 of the rolling element 22 between two bearer rings 18,20.Interior ring 18 is fixed on the axle 10 by means of fixed element 24, interior ring 18 is pressed against the convex shoulder 26 of axle 10 in described fixed element.Fixed element 24 for example is pressed on the bearer ring 18 indirectly or directly by the rotor fixing part that is connected with axle.
The fixing of outer race 20 realized via holding member 28.Especially the holding member 28 that constitutes ring cover is connected with pump case 14 via the bolt 30 that schematically shows.
Especially for outer race 20 is radially carried out damping, in the illustrated embodiment, be provided with two damping members 32.In the illustrated embodiment, two damping members 32 consist of circlewise and surround outer race 20 fully.In the illustrated embodiment, the damping member that consists of in the same manner has basically foursquare cross section.
For by means of holding member 28 fixing damping member 32 axially, pump case has abutment face 34.In the illustrated embodiment, abutment face 34 consists of by the depressed part 36 that is arranged in the pump case 14.Abutment face 34 consists of circlewise, and surrounds axle 10.Abutment face 34 is basically radially directed.
In addition, holding member 28 has protuberance 42, and it is radially inside again that described protuberance is relevant to bump 40, namely arranges in the direction towards axle 10.Protuberance 42 preferably consists of equally circlewise.Consist of the axial abutment face 44 of pointing to outer race 20 by protuberance 42.Between the axial abutment face 44 of the distolateral and protuberance 42 of outer race 20, be provided with axial damping member 46.Therefore, by the described preferred form of implementation of holding member 28, not only realize the fixing of two damping members 32 and distortion, but also realize in the axial direction fixing of outer race 20.In case of necessity, also can realize thus the axial tensioning of bearing.
For heat is discharged, between the bump 40 of outer race 20 and holding member 28, be provided with cavity 48 from bearing 16.Described cavity is filled with the medium of heat conduction, the fat of for example heat conduction.
Claims (14)
1. one kind is used for vacuum pump, the bearing means of the axle of the quick rotation of turbomolecular pump especially, and described bearing means has
The bearing element (12) of two described axles of supporting (10), at least one in wherein said two bearing elements (12) has:
With the bearing (16) of the outer race (20) that surrounds rolling element (22),
At least one is arranged on the damping member (32) between pump case (14) and the described outer race (20), and
The holding member (28) of described at least one damping member (32) that be connected with described pump case (14), fixing.
2. bearing means according to claim 1 is characterized in that, described pump case (14) has abutment face (34), so that described at least one damping member (32) is arranged between described holding member (28) and the described abutment face (34).
3. bearing means according to claim 2 is characterized in that, described abutment face (34) is formed in the described pump case (14) by especially annular depressed part (36).
4. bearing means according to claim 3 is characterized in that, described holding member (28) has the bump (40) that consists of especially circlewise, extend in the described depressed part (36) at bump described in the mounted state.
5. bearing means according to claim 4, it is characterized in that, described at least one damping member (32) that consists of especially circlewise is arranged between the described abutment face (34) of the described bump (40) of described holding member (28) and described pump case (14).
6. according to claim 4 or 5 described bearing meanss, it is characterized in that, consisting of between described outer race (20) and described bump (40) has the medium that preferably is filled with transferring heat, the cavity (48) that consists of especially circlewise.
7. according to claim 1 to one of 6 described bearing meanss, it is characterized in that, described holding member (28) is additionally fixed described outer race (20).
8. bearing means according to claim 7 is characterized in that, described holding member (28) has the protuberance (42) that radially points to described axle (10) to be used for fixing described outer race (20).
9. according to claim 7 or 8 described bearing meanss, it is characterized in that, the especially described protuberance of described holding member (28) (42) has axial abutment face (44), indirectly or directly abuts on the described axial abutment face at outer race described in the mounted state (20).
10. according to claim 7 to one of 9 described bearing meanss, it is characterized in that, between described outer race (20) and the especially described protuberance of described holding member (28) (42), be provided with axial damping member (46).
11. to one of 10 described bearing meanss, it is characterized in that according to claim 1, described bearing (16) has the bearing inner ring (18) that is fixed on the described axle (10).
12. according to claim 1 to one of 11 described bearing meanss, it is characterized in that, described the second bearing element has: with the bearing (16) of the outer race (20) that surrounds rolling element (22), at least one is arranged on damping member (32) between pump case (14) and the described outer race (20) and the holding member (28) of fixing described at least one damping member (32) that is connected with described pump case (14).
13. bearing means according to claim 12 is characterized in that, at least one in 11 improved the second bearing element according to claim 2.
14. a vacuum pump, turbomolecular pump especially, described vacuum pump have the carrying rotor element axle (10), surround the pump case (14) of described rotor element and two according to claim 1 to one of 13 described bearing meanss (12).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202011002794.5 | 2011-02-16 | ||
| DE202011002794U DE202011002794U1 (en) | 2011-02-16 | 2011-02-16 | Bearing arrangement for fast rotating shafts of vacuum pumps |
| PCT/EP2012/052164 WO2012110384A1 (en) | 2011-02-16 | 2012-02-09 | Bearing arrangement for rapidly rotating shafts of vacuum pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103370553A true CN103370553A (en) | 2013-10-23 |
Family
ID=45607235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012800093202A Pending CN103370553A (en) | 2011-02-16 | 2012-02-09 | Bearing arrangement for rapidly rotating shafts of vacuum pumps |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2676043A1 (en) |
| JP (1) | JP2014506981A (en) |
| CN (1) | CN103370553A (en) |
| DE (1) | DE202011002794U1 (en) |
| WO (1) | WO2012110384A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257696A (en) * | 2014-07-11 | 2016-01-20 | 罗伯特·博世有限公司 | Main shaft support device with support device and laterally movable rotary bearing |
| CN114423943A (en) * | 2019-09-19 | 2022-04-29 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Motor-driven assembly for vehicle |
| EP4215769A1 (en) * | 2022-01-21 | 2023-07-26 | Siemens Aktiengesellschaft | Bearing element, machine and method for controlling a bearing element |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014204608A1 (en) * | 2014-03-12 | 2015-09-17 | BSH Hausgeräte GmbH | vacuum cleaner fan |
| JP6772721B2 (en) * | 2015-10-23 | 2020-10-21 | 株式会社島津製作所 | Vacuum pump |
| JP7327132B2 (en) * | 2019-12-06 | 2023-08-16 | 株式会社島津製作所 | Vacuum pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294796A (en) * | 1985-10-24 | 1987-12-22 | ライボルト−ヘレ−ウス・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Vacuum pump with casing and rotor |
| US20010010438A1 (en) * | 2000-01-31 | 2001-08-02 | Andre Bouille | Damper system and bearing centering device for magnetic bearing vacuum pump |
| DE102007037792A1 (en) * | 2007-08-10 | 2009-02-12 | Oerlikon Leybold Vacuum Gmbh | Pump bearing assembly |
| CN101595307A (en) * | 2007-01-29 | 2009-12-02 | 爱德华兹有限公司 | Vacuum pump |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1788231U (en) * | 1959-02-27 | 1959-05-06 | Zahnraederfabrik Renk A G | PRECISION-WAELZ- OR BEARINGS. |
| FR95734E (en) * | 1966-11-15 | 1971-06-04 | Pitner Alfred | Needle bearing without clearance. |
| IT1032818B (en) * | 1975-05-06 | 1979-06-20 | Rava E | IMPROVEMENT TO LECULAR TURBOM PUMPS |
| JPH0525025U (en) * | 1991-09-12 | 1993-04-02 | 光洋精工株式会社 | Rolling bearing device |
| JPH10274188A (en) * | 1997-03-31 | 1998-10-13 | Shimadzu Corp | Turbo-molecular pump |
| GB0309830D0 (en) * | 2003-04-29 | 2003-06-04 | Boc Group Plc | A vacuum pump |
| GB2415019A (en) * | 2004-06-07 | 2005-12-14 | Boc Group Plc | A supporting arrangement for a roller bearing |
| GB0511877D0 (en) * | 2005-06-10 | 2005-07-20 | Boc Group Plc | Vacuum pump |
| JP2007192376A (en) * | 2006-01-20 | 2007-08-02 | Ntn Corp | Rolling bearing device |
| JP2008157365A (en) * | 2006-12-25 | 2008-07-10 | Ntn Corp | Rolling bearing for aircraft engine |
| EP2088327B1 (en) * | 2008-02-11 | 2011-08-31 | Agilent Technologies Italia S.p.A. | Support for rolling bearing |
-
2011
- 2011-02-16 DE DE202011002794U patent/DE202011002794U1/en not_active Expired - Lifetime
-
2012
- 2012-02-09 CN CN2012800093202A patent/CN103370553A/en active Pending
- 2012-02-09 WO PCT/EP2012/052164 patent/WO2012110384A1/en active Application Filing
- 2012-02-09 JP JP2013553873A patent/JP2014506981A/en active Pending
- 2012-02-09 EP EP12704041.8A patent/EP2676043A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294796A (en) * | 1985-10-24 | 1987-12-22 | ライボルト−ヘレ−ウス・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Vacuum pump with casing and rotor |
| US20010010438A1 (en) * | 2000-01-31 | 2001-08-02 | Andre Bouille | Damper system and bearing centering device for magnetic bearing vacuum pump |
| CN101595307A (en) * | 2007-01-29 | 2009-12-02 | 爱德华兹有限公司 | Vacuum pump |
| DE102007037792A1 (en) * | 2007-08-10 | 2009-02-12 | Oerlikon Leybold Vacuum Gmbh | Pump bearing assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257696A (en) * | 2014-07-11 | 2016-01-20 | 罗伯特·博世有限公司 | Main shaft support device with support device and laterally movable rotary bearing |
| CN105257696B (en) * | 2014-07-11 | 2020-03-06 | 罗伯特·博世有限公司 | Spindle bearing with a support device and a laterally displaceable pivot bearing |
| CN114423943A (en) * | 2019-09-19 | 2022-04-29 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Motor-driven assembly for vehicle |
| CN114423943B (en) * | 2019-09-19 | 2023-09-19 | 大陆汽车科技有限公司 | Motor-driven assembly for a vehicle |
| EP4215769A1 (en) * | 2022-01-21 | 2023-07-26 | Siemens Aktiengesellschaft | Bearing element, machine and method for controlling a bearing element |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012110384A1 (en) | 2012-08-23 |
| DE202011002794U1 (en) | 2012-06-06 |
| JP2014506981A (en) | 2014-03-20 |
| EP2676043A1 (en) | 2013-12-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Cologne, Germany Applicant after: LEYBOLD Co. Ltd. Address before: Cologne, Germany Applicant before: Oerlikon Leybold Vacuum GmbH |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131023 |