US20110081231A1 - Pump bearing arrangement - Google Patents
Pump bearing arrangement Download PDFInfo
- Publication number
- US20110081231A1 US20110081231A1 US12/672,744 US67274408A US2011081231A1 US 20110081231 A1 US20110081231 A1 US 20110081231A1 US 67274408 A US67274408 A US 67274408A US 2011081231 A1 US2011081231 A1 US 2011081231A1
- Authority
- US
- United States
- Prior art keywords
- vibration element
- pump
- bearing arrangement
- bearing
- arrangement according
- 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.)
- Abandoned
Links
- 238000013016 damping Methods 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000002923 metal particle Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
-
- 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
Definitions
- the invention relates to a pump bearing arrangement which is suitable particularly for rapidly rotating pumps such as e.g. turbomolecular pumps.
- Pumps such as e.g. turbomolecular pumps, comprise a pump rotor connected to a rotor shaft.
- the rotor shaft is supported in a shaft housing via two bearing arrangements.
- Said two bearing arrangements usually comprise respectively one ball bearing.
- the inner bearing rings and respectively bearing shells of the two ball bearings are fixedly connected to the rotor shaft.
- the outer bearing rings and respectively bearing shells are connected to the shaft housing in the axial direction, or are arranged in abutment e.g. on an annular projection of the shaft housing in the axial direction.
- the two bearing arrangements are axially biased.
- the outer bearing rings are usually not arranged in direct abutment on the shaft housing. Instead, an annular gap is provided between the outer bearing rings and the shaft housing.
- an O-ring is arranged, serving particularly as a vibration element for damping and radially holding each of the two bearing arrangements.
- vibration elements use is made e.g. of O-rings manufactured from silicone. This, however, gives rise to the problem that the heat dissipation effected via silicone O-rings will be merely poor.
- Heat dissipation from the bearing is difficult to achieve particularly because the axial surfaces of the ball bearings used, which preferably are angular-contact ball bearings, are small and thus will contribute only little to heat dissipation.
- the outer bearing rings are usually arranged at a distance from the shaft housing for allowing the axial bias to be realized. Consequently, heat dissipation in the radial direction will not be sufficient.
- the bearings are operated at low pressures of usually 1 ⁇ 10 ⁇ 3 to 10 ⁇ 10 mbar, heat dissipation in the radial direction is extremely poor.
- the vibration element serving for damping is designed and/or arranged to have a thermal conductivity of at least 0.3 W/mK.
- the vibration element is located between the bearing ring and the shaft housing.
- the vibration element surrounds the outer bearing ring and consequently is arranged between the outer bearing ring and the shaft housing.
- the vibration element thus fulfills two functions, i.e. on the one hand, damping the movements of the bearing ring and, on the other hand, dissipating the heat from the bearing ring particularly into the shaft housing.
- This inventive dual function of the vibration element makes it possible to realize a good heat dissipation from the bearing. Thereby, the operating life of the bearing is extended.
- said at least one vibration element has a thermal conductivity of at least 0.35 W/mK and more preferably at least 0.4 W/mK.
- the vibration element comprises an elastomeric material or is made of elastomeric material. Tests have shown that the material Elastosil R840 is especially well-suited for use in the realization of the invention.
- the inventive thermal conductivity of the material is guaranteed not by admixture of particles such as e.g. metal or copper powder but, instead, by the elastomeric material itself.
- the properties of the material are influenced particularly by the length and the structure of the macromolecules.
- the material to be used comprises a silicone rubber mass.
- vibration elements can be provided for each bearing arrangement.
- two annular vibration elements are provided, surrounding the outer bearing ring so as to take up radial forces.
- vibration elements preferably again of an annular shape—can be provided also in the axial direction.
- the vibration elements which preferably are of a rectangular or circular cross-sectional shape, are respectively arranged in a groove.
- said groove is arranged in the shaft housing, with the vibration element preferably extending beyond the groove so that there will always be a gap formed between the shaft housing and the bearing ring.
- the vibration element preferably has a Shore A hardness of 40-80 Shore A.
- the invention further relates to the use of a vibration element having a thermal conductivity of at least 0.3 W/mK in pump bearing arrangements.
- the vibration element is preferably designed in the above described manner.
- the FIGURE shows a schematic lateral view of an upper and respectively rotor-side bearing arrangement according to the invention.
- FIG. 1 A preferred embodiment of the bearing arrangement 12 arranged in an upper position, i.e. facing toward a rotor 10 , is illustrated in the FIGURE.
- Rotor 10 is connected to a rotor shaft 14 for common rotation therewith.
- an inner bearing shell 16 of a grooved ball bearing Arranged on rotor shaft 14 for common rotation therewith is an inner bearing shell 16 of a grooved ball bearing, which is held in position by the rotor and the shaft stub 18 .
- the upper bearing arrangement 12 is arranged in a shaft housing 20 which in the illustrated embodiment has a substantially cylindrical shape.
- An outer bearing ring 22 is arranged internally of shaft housing 20 .
- bearing bodies in the form of balls are arranged between said two bearing rings 16 , 22 .
- outer bearing ring 22 is connected to shaft housing 20 by two radial vibration elements 26 formed as elastic O-rings. Further provided is an axial vibration element 28 , preferably also formed as an elastic O-ring. Said two radial vibration elements 26 are respectively arranged in an edge region of outer bearing ring 22 in a respective groove 30 . Said groove 30 is provided in shaft housing 20 . The depth of groove 30 is smaller than the diameter of said O-rings 26 so that the latter projects beyond an inner side 32 of shaft housing 20 and are located in abutment on outer bearing ring 22 .
- the axial vibration element 28 is arranged in an axial annular groove 34 which also is provided in shaft housing 20 . Also here, the depth of groove 34 is smaller than the diameter of O-ring 28 so that the latter projects in the direction of outer bearing ring 22 .
- a force transmission element 36 is provided between axial vibration element 28 and outer bearing ring 22 .
- Said force transmission element 36 particularly has the function of a friction damper.
- a further function of force transmission element 36 resides in allowing for movement of outer bearing ring 22 in the radial direction without causing shear forces or radial forces to act on axial vibration element 28 . At least, the corresponding forces that occur can be significantly reduced.
- a venting bore 38 formed as a transverse bore can be provided.
- the annular vibration elements 26 , 28 provided in the illustrated embodiment serve for heat dissipation from the bearing arrangement 12 .
- the heat, generated especially by the rolling friction of the balls 24 is thus dissipated via outer bearing ring 22 as well as via vibration elements 26 , 28 into shaft housing 20 .
- vibration elements 26 , 28 have a good thermal conductivity, preferably higher than 0.3 W/mK.
- a further ball bearing is provided to support the lower end of rotor shaft 14 .
- Said two bearings are tensioned for providing an axial bias in the longitudinal direction of rotor shaft 14 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Support Of The Bearing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Vibration Prevention Devices (AREA)
- Mounting Of Bearings Or Others (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007037792A DE102007037792A1 (de) | 2007-08-10 | 2007-08-10 | Pumpen-Lageranordnung |
DE102007037792.6 | 2007-08-10 | ||
PCT/EP2008/059593 WO2009021809A2 (de) | 2007-08-10 | 2008-07-22 | Pumpen-lageranordnung |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110081231A1 true US20110081231A1 (en) | 2011-04-07 |
Family
ID=40227013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/672,744 Abandoned US20110081231A1 (en) | 2007-08-10 | 2008-07-22 | Pump bearing arrangement |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110081231A1 (ja) |
EP (1) | EP2174015B1 (ja) |
JP (1) | JP5384498B2 (ja) |
CN (1) | CN101809292A (ja) |
DE (1) | DE102007037792A1 (ja) |
WO (1) | WO2009021809A2 (ja) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130071243A1 (en) * | 2011-09-20 | 2013-03-21 | Honeywell International Inc. | Turbocharger rotating assembly |
US20140033859A1 (en) * | 2011-03-16 | 2014-02-06 | Jonathan James Robert Hilton | High speed flywheel |
US20150132109A1 (en) * | 2012-04-04 | 2015-05-14 | Shimadzu Corporation | Vacuum pump |
US20150198084A1 (en) * | 2014-01-16 | 2015-07-16 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Exhaust gas turbocharger |
US9312736B2 (en) | 2010-12-16 | 2016-04-12 | Baumueller Nuernberg Gmbh | Electric machine, in particular of a pump unit |
US20160326998A1 (en) * | 2015-05-06 | 2016-11-10 | Borgwarner Inc. | Apparatus for a charging system of an internal combustion engine |
EP3115615A1 (en) * | 2015-07-08 | 2017-01-11 | Panasonic Intellectual Property Management Co., Ltd. | Turbo machine |
US20170096763A1 (en) * | 2015-10-06 | 2017-04-06 | New Motech Co., Ltd. | Driving apparatus for washing machine |
US9995342B2 (en) * | 2015-11-23 | 2018-06-12 | Cadventures, Inc. | Self-adjusting bushing bearing with shaft seal |
US10233968B2 (en) * | 2015-06-04 | 2019-03-19 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Bearing device and supercharger |
US20190301526A1 (en) * | 2018-03-29 | 2019-10-03 | Ge Global Sourcing Llc | Bearing assembly and method |
US11033915B2 (en) | 2016-08-04 | 2021-06-15 | Ntn Corporation | Air turbine drive spindle |
US11519419B2 (en) | 2020-04-15 | 2022-12-06 | Kin-Chung Ray Chiu | Non-sealed vacuum pump with supersonically rotatable bladeless gas impingement surface |
US20220389955A1 (en) * | 2021-06-08 | 2022-12-08 | Aktiebolaget Skf | Non-locating bearing assembly |
US20240240650A1 (en) * | 2011-04-18 | 2024-07-18 | Resmed Motor Technologies Inc. | Pap system blower |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010015593U1 (de) * | 2010-11-17 | 2012-03-01 | Oerlikon Leybold Vacuum Gmbh | Pumpenlagerung |
DE102010054828A1 (de) * | 2010-12-16 | 2012-06-21 | Thyssenkrupp Presta Ag | Servolenkung mit Spindeltrieb |
US8528917B2 (en) * | 2011-02-03 | 2013-09-10 | The Raymond Corporation | Wheel support assembly for a vehicle |
DE202011002794U1 (de) * | 2011-02-16 | 2012-06-06 | Oerlikon Leybold Vacuum Gmbh | Lageranordnung für schnell drehende Wellen von Vakuumpumpen |
KR101709809B1 (ko) * | 2012-02-16 | 2017-02-23 | 한온시스템 주식회사 | 연료전지 차량용 공기 블로워 |
CN103644145B (zh) * | 2013-12-04 | 2016-01-27 | 江苏大学 | 一种盘管冷却结构的热水循环泵悬架体 |
DE102014204608A1 (de) * | 2014-03-12 | 2015-09-17 | BSH Hausgeräte GmbH | Staubsaugergebläse |
DE102014213505B4 (de) * | 2014-07-11 | 2022-05-12 | Robert Bosch Gmbh | Elektrozylinder, dessen Spindellagerung eine Stützvorrichtung mit einem querbeweglichem Drehlager aufweist |
DE102014217794B4 (de) * | 2014-09-05 | 2017-03-16 | Robert Bosch Gmbh | Feder zum Vorspannen eines Wälzlagers und Baugruppe mit der Feder und dem Wälzlager |
JP6458414B2 (ja) * | 2014-09-10 | 2019-01-30 | 株式会社島津製作所 | 真空ポンプ |
KR102355646B1 (ko) * | 2015-06-04 | 2022-01-27 | 엘지이노텍 주식회사 | 모터 |
CN106246741A (zh) * | 2015-11-03 | 2016-12-21 | 无锡市三立轴承有限公司 | 自润滑冷却的轴承安装结构 |
CN106246740A (zh) * | 2015-11-03 | 2016-12-21 | 无锡市三立轴承有限公司 | 轴承的自冷却安装结构 |
JP6638444B2 (ja) * | 2016-02-09 | 2020-01-29 | 株式会社島津製作所 | 真空ポンプ |
CN105799774A (zh) * | 2016-05-11 | 2016-07-27 | 新乡艾迪威汽车科技有限公司 | 一种汽车转向器齿条支撑套结构 |
CN110685950B (zh) * | 2019-11-13 | 2021-05-25 | 上海裕达实业有限公司 | 分子泵轴承结构 |
CN112324697B (zh) * | 2020-11-20 | 2022-03-22 | 浙江海洋大学 | 一种具有可调节轴承压盖的化工流程泵 |
CN114215782A (zh) * | 2021-12-08 | 2022-03-22 | 苏州中科科仪技术发展有限公司 | 磁悬浮分子泵的主轴结构及磁悬浮分子泵 |
US11649859B1 (en) * | 2021-12-20 | 2023-05-16 | Aktiebolaget Skf | Vibration dampening for scanner bearing |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4695223A (en) * | 1985-04-04 | 1987-09-22 | Leybold-Heraeus Gmbh | Turbomolecular vacuum pump with a rotor and at least one antifriction bearing |
US4821860A (en) * | 1986-06-28 | 1989-04-18 | Automotive Products Plc | Friction facing material and carrier assembly |
US6664683B1 (en) * | 1999-01-29 | 2003-12-16 | Ibiden Co., Ltd | Motor and turbo-molecular pump |
US6709236B1 (en) * | 1999-11-18 | 2004-03-23 | Leybold Vakuum Gmbh | High-speed turbo pump |
US7534098B2 (en) * | 2004-03-29 | 2009-05-19 | Weir Minerals Australia, Ltd. | Suction distribution and disconnection system for a submersible pump |
US20100215475A1 (en) * | 2005-06-10 | 2010-08-26 | Barrie Dudley Brewster | Vacuum Pump |
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GB658373A (en) * | 1948-08-21 | 1951-10-10 | British Thomson Houston Co Ltd | Improvements in and relating to bearing mountings |
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DE7707833U1 (de) * | 1977-03-14 | 1982-08-19 | Gesellschaft für Kernverfahrenstechnik mbH, 5170 Jülich | Fanglager für Überkritisch laufende Rotoren |
JPH0228248B2 (ja) * | 1984-10-29 | 1990-06-22 | Ulvac Corp | Kibannoreikyakusochi |
DE8910040U1 (de) * | 1988-09-03 | 1989-12-14 | Leybold Ag | Turbomolekular-Vakuumpumpe |
JPH07317759A (ja) * | 1994-05-30 | 1995-12-08 | Riyoosen Engineers:Kk | ダンパー軸受装置 |
GB0309830D0 (en) * | 2003-04-29 | 2003-06-04 | Boc Group Plc | A vacuum pump |
DE10352322B4 (de) * | 2003-11-06 | 2006-03-09 | Ewm Eichelhardter Werkzeug- Und Maschinenbau Gmbh | Schalldämpfungsanordnung innerhalb eines Antriebsstrangs |
GB2415019A (en) * | 2004-06-07 | 2005-12-14 | Boc Group Plc | A supporting arrangement for a roller bearing |
EP1760319A4 (en) * | 2004-06-25 | 2010-07-07 | Osaka Vacuum Ltd | BEARING SUPPORT STRUCTURE FOR TURBOMOLECULAR PUMP |
JP2007128829A (ja) * | 2005-11-07 | 2007-05-24 | Fuji Polymer Industries Co Ltd | 熱圧着用シート |
-
2007
- 2007-08-10 DE DE102007037792A patent/DE102007037792A1/de not_active Withdrawn
-
2008
- 2008-07-22 JP JP2010519413A patent/JP5384498B2/ja not_active Expired - Fee Related
- 2008-07-22 CN CN200880102189A patent/CN101809292A/zh active Pending
- 2008-07-22 EP EP08786329A patent/EP2174015B1/de not_active Not-in-force
- 2008-07-22 WO PCT/EP2008/059593 patent/WO2009021809A2/de active Application Filing
- 2008-07-22 US US12/672,744 patent/US20110081231A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4695223A (en) * | 1985-04-04 | 1987-09-22 | Leybold-Heraeus Gmbh | Turbomolecular vacuum pump with a rotor and at least one antifriction bearing |
US4821860A (en) * | 1986-06-28 | 1989-04-18 | Automotive Products Plc | Friction facing material and carrier assembly |
US6664683B1 (en) * | 1999-01-29 | 2003-12-16 | Ibiden Co., Ltd | Motor and turbo-molecular pump |
US6709236B1 (en) * | 1999-11-18 | 2004-03-23 | Leybold Vakuum Gmbh | High-speed turbo pump |
US7534098B2 (en) * | 2004-03-29 | 2009-05-19 | Weir Minerals Australia, Ltd. | Suction distribution and disconnection system for a submersible pump |
US20100215475A1 (en) * | 2005-06-10 | 2010-08-26 | Barrie Dudley Brewster | Vacuum Pump |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9312736B2 (en) | 2010-12-16 | 2016-04-12 | Baumueller Nuernberg Gmbh | Electric machine, in particular of a pump unit |
US9360082B2 (en) * | 2011-03-16 | 2016-06-07 | Flybird Automotive Limited | High speed flywheel |
US20140033859A1 (en) * | 2011-03-16 | 2014-02-06 | Jonathan James Robert Hilton | High speed flywheel |
US20240240650A1 (en) * | 2011-04-18 | 2024-07-18 | Resmed Motor Technologies Inc. | Pap system blower |
US8911202B2 (en) * | 2011-09-20 | 2014-12-16 | Honeywell International Inc. | Turbocharger rotating assembly |
US20130071243A1 (en) * | 2011-09-20 | 2013-03-21 | Honeywell International Inc. | Turbocharger rotating assembly |
US10590961B2 (en) * | 2012-04-04 | 2020-03-17 | Shimadzu Corporation | Vacuum pump |
US20150132109A1 (en) * | 2012-04-04 | 2015-05-14 | Shimadzu Corporation | Vacuum pump |
US9797304B2 (en) * | 2014-01-16 | 2017-10-24 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Exhaust gas turbocharger |
US20150198084A1 (en) * | 2014-01-16 | 2015-07-16 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Exhaust gas turbocharger |
US20160326998A1 (en) * | 2015-05-06 | 2016-11-10 | Borgwarner Inc. | Apparatus for a charging system of an internal combustion engine |
US10233968B2 (en) * | 2015-06-04 | 2019-03-19 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Bearing device and supercharger |
EP3115615A1 (en) * | 2015-07-08 | 2017-01-11 | Panasonic Intellectual Property Management Co., Ltd. | Turbo machine |
US10570775B2 (en) | 2015-07-08 | 2020-02-25 | Panasonic Intellectual Property Management Co., Ltd. | Turbo machine |
US10662569B2 (en) * | 2015-10-06 | 2020-05-26 | New Motech Co., Ltd. | Driving apparatus for washing machine |
US20170096763A1 (en) * | 2015-10-06 | 2017-04-06 | New Motech Co., Ltd. | Driving apparatus for washing machine |
US9995342B2 (en) * | 2015-11-23 | 2018-06-12 | Cadventures, Inc. | Self-adjusting bushing bearing with shaft seal |
US11033915B2 (en) | 2016-08-04 | 2021-06-15 | Ntn Corporation | Air turbine drive spindle |
US10837487B2 (en) * | 2018-03-29 | 2020-11-17 | Transportation Ip Holdings, Llc | Bearing assembly and method |
US20190301526A1 (en) * | 2018-03-29 | 2019-10-03 | Ge Global Sourcing Llc | Bearing assembly and method |
US11519419B2 (en) | 2020-04-15 | 2022-12-06 | Kin-Chung Ray Chiu | Non-sealed vacuum pump with supersonically rotatable bladeless gas impingement surface |
US20220389955A1 (en) * | 2021-06-08 | 2022-12-08 | Aktiebolaget Skf | Non-locating bearing assembly |
US11835087B2 (en) * | 2021-06-08 | 2023-12-05 | Aktiebolaget Skf | Non-locating bearing assembly |
Also Published As
Publication number | Publication date |
---|---|
JP2010535969A (ja) | 2010-11-25 |
EP2174015A2 (de) | 2010-04-14 |
JP5384498B2 (ja) | 2014-01-08 |
WO2009021809A2 (de) | 2009-02-19 |
CN101809292A (zh) | 2010-08-18 |
DE102007037792A1 (de) | 2009-02-12 |
EP2174015B1 (de) | 2012-10-03 |
WO2009021809A3 (de) | 2009-06-11 |
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