CN103270248B - 泵 - Google Patents

泵 Download PDF

Info

Publication number
CN103270248B
CN103270248B CN201180033805.0A CN201180033805A CN103270248B CN 103270248 B CN103270248 B CN 103270248B CN 201180033805 A CN201180033805 A CN 201180033805A CN 103270248 B CN103270248 B CN 103270248B
Authority
CN
China
Prior art keywords
pump
bearing block
bearing
radial
described bearing
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.)
Active
Application number
CN201180033805.0A
Other languages
English (en)
Other versions
CN103270248A (zh
Inventor
C.F.科利
A.E.K.霍尔布罗克
D.贝德韦尔
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.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
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 BOC Group Ltd filed Critical BOC Group Ltd
Publication of CN103270248A publication Critical patent/CN103270248A/zh
Application granted granted Critical
Publication of CN103270248B publication Critical patent/CN103270248B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/003—Systems for the equilibration of forces acting on the elements of the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/02—Arrangements of bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/02—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • 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
    • 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
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
    • 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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • 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
    • F16C2360/42—Pumps with cylinders or pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Support Of The Bearing (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

本发明涉及一种泵(10)，泵(10)包括通过轴承座(48)承载的由轴承(38)支承的用于旋转的轴(15)，所述轴承座具有相对于泵壳体(12)固定的大体上外部的径向部分(52)和相对于轴承固定的大体上内部的径向部分(54)，其中轴承座在所述内部部分与所述外部部分之间的径向方向上为刚性的，而在轴向方向上为挠性的，以用于限制轴承的径向运动且允许轴向运动。

Description

泵
技术领域
本发明涉及一种泵，且尤其但非排他地涉及一种涡旋泵和涡旋泵的轴承座。本发明还可得到其它应用，例如，如电动机。
背景技术
涡旋泵包括固定涡盘和动涡盘。动涡盘由传动轴的偏心轴部分驱动以相对于固定涡盘转动。传动轴通过马达旋转。传动轴的旋转给予至动涡盘相对于固定涡盘的转动运动，以从涡盘装置的入口到出口泵送流体。
图6中更详细地示出了现有技术的涡旋泵的一部分。为简单起见，未示出固定涡盘。该泵包括具有同心轴部分104和偏心轴部分106的传动轴102。该轴由马达108驱动，马达108具有相对于泵壳体112固定的第一部分110和相对于同心轴部分固定的第二部分114。
同心轴部分104由第一轴承116和第二轴承118支承用于旋转。第二轴承118相对于偏心轴部分支承动涡盘120以允许相对的角运动，以便将轴转动运动的旋转给予至动涡盘。
第一轴承116具有相对于轴102固定的内环122和抵靠轴承座126定位的外环124。轴承座可形成壳体的一部分或相对于壳体固定。一定数目的滚珠128允许轴相对于轴承座旋转。
紧固部件130在抵靠同心轴部分的径向延伸的肩部将内环122紧固就位，以便在径向和轴向两个方向上相对于传动轴固定内环。外环能够相对于轴承座126在轴向方向上滑动，以允许轴在轴向方向上的膨胀和收缩，例如，由于热。该滑动运动还使机构能够适应由零件公差引起的轴向上的零件大小的变化。弹簧部件132定位在轴承座的径向地向内定向的唇部134与外环之间，且在轴向方向上(图6中朝右侧)偏压外环和轴。通过该预先加载系统生成的力由线136示出，且提供了对于轴的轴向运动的抵抗力，以减少向后运动和向前运动的量。在第二轴承118中生成了类似但互补的力。轴承座126为固定部件，且因此防止了径向运动。由于为了有效的泵送，特别是如果涡盘装置没有被润滑，则需要动涡盘120与固定涡盘之间的轴向间隙和径向间隙较小，故应该限制轴的轴向运动和径向运动。
然而，第一轴承116和轴承座126上的轴向负载和径向负载通常由于磨损而引起损坏，从而需要以规定间隔更换轴承，这增加了所有者的成本。
发明内容
本发明提供一种用于泵的改进的轴承组件。
本发明提供了一种泵，该泵包括通过轴承座承载的由轴承支承的用于旋转的轴，所述轴承座具有相对于泵壳体固定的大体上外部的径向部分和相对于轴承固定的大体上内部的径向部分，其中轴承座在所述内部部分和所述外部部分之间的径向方向上为刚性的，而在轴向方向上为挠性的，用于限制轴承的径向运动且允许轴向运动。
附图说明
为了可更好地理解本发明，现在将参看附图描述仅以实例的方式给出的本发明的一些实施例，在附图中：
图1为涡旋泵的简图；
图2更详细地示出了图1的涡旋泵的部分；
图3示出了图1的涡旋泵的轴承座；
图4示出了备选的轴承座；
图5示出了另一个涡旋泵的部分；以及
图6示出了现有技术的涡旋泵的部分。
具体实施方式
图1中示出了涡旋压缩机或涡旋泵10。泵10包括泵壳体12和具有同心轴部分15和偏心轴部分16的传动轴14。轴14由马达18驱动，且偏心轴部分连接到动涡盘20上，以便在使用期间，轴的旋转向动涡盘给予相对于固定涡盘22的转动运动，以用于沿压缩机的泵入口24与泵出口26之间流体流动通路泵送流体。
固定涡盘22包括涡盘壁28，涡盘壁28垂直于大体上圆形的底板30延伸，且具有轴向的端面或表面29。动涡盘20包括涡盘壁34，涡盘壁34垂直于大体上圆形的底板36延伸，且具有轴向的端面或表面35。动涡盘壁34在动涡盘的转动运动期间与固定涡盘壁28协作或啮合。涡盘的相对转动运动引起大量的气体困陷在涡盘之间且从入口泵送至出口。
涡旋泵可为干式泵且未被润滑。特别是当未被润滑时，为了防止向后渗漏，必须精确地保持涡盘之间的轴向间隙和径向间隙。一个涡盘的涡盘壁的轴向端部29,35与另一个涡盘的底板30,36之间的间距通过密封装置来密封，该密封装置大体上包括尖端密封件。
泵在使用期间升高了温度，然而，不是泵内的所有构件都以相同的速率升高，且还由于不同的热膨胀系数，轴14比泵壳体12响应于更大范围的温度的变化。因此，同心轴部分的第一轴承38和第二轴承40必须在不影响动涡盘与固定涡盘之间的轴向间隙和径向间隙的情况下适应轴的膨胀和收缩。此外，第一轴承38和第二轴承40优选为适应在制造公差内产生的长度范围内的不同长度的轴。
将参看图2和图3更详细地描述轴承装置。为简单起见，在图2中未示出固定涡盘22。
如图2中所示，传动轴14具有同心轴部分15和偏心轴部分13。该轴由马达16驱动，马达16具有相对于泵壳体12固定的第一部分17和相对于同心轴部分15固定的第二部分19。第二部分19相对于第一部分17在轴向方向上自由地运动至一定的范围。
同心轴部分15由第一轴承38和第二轴承40支承以用于旋转。第三轴承42相对于偏心轴部分支承动涡盘20以允许相对的角运动，以便在轴旋转时将转动运动给予到动涡盘上。
第一轴承38具有相对于轴14固定的内环44和固定到轴承座48上的外环46。一定数目的滚珠50允许轴14相对于轴承座48的旋转。轴承座48具有相对于壳体12固定的径向外部部分52和固定到第一轴承38的外环46上的径向内部部分54。该实例中的径向内部部分包括具有用于固定到外环46上的径向延伸的唇部58的环形座56，以便通过径向内部部分54承载外环。内环44固定到在紧固部件60与轴的肩部之间的轴上。
在图3中更详细地示出的轴承座48构造成用以限制轴承38的径向运动，但允许轴向运动。在该实例中，轴承座具有中间部分，该中间部分包括定位在穿过轴承座的开口64之间的三个大体上挠性的支承部分62，其允许轴承座沿轴部分15的轴线A挠曲。然而，支承部分在径向方向上为刚性的，以限制轴的径向运动，否则这将引起动涡盘和固定涡盘的失准。由于轴承座的内部部分54相对于轴承38(图3中未示出)的外环46固定，故不需要轴承如图5中所示的现有技术的装置的情况那样来相对于轴承座滑动，且因此轴承38遭受较少的损坏，且需要以更长的间隔来更换。
图4中示出了备选的轴承座78。在该布置中，中间部分形成辐式结构，该辐式结构包括多个挠性支承部分80，各个挠性支承部分80定位在穿过轴承座的相邻开口82之间，其允许轴承座沿轴部分15的轴线A挠曲。然而，支承部分在径向方向上为刚性的，以限制轴的径向运动，否则这将引起动涡盘和固定涡盘的失准。提供大量的支承部分(16如图所示)将径向负载围绕轴承座的圆周分配在轴承座上。
在图2的布置中，向内偏压轴承座以沿由线66表示的方向作用于轴承38上，从而阻碍轴承38在轴向方向A1上的轴向运动。以此方式，容许了轴的热膨胀，但在第二轴承40上维持了由线68表示的力，以便保持动涡盘与固定涡盘之间的轴向间距大体上恒定。例如，轴承座48可由铝或钢制成，但不仅限于这些材料，且可预先加载轴承座48以便在配合就位时，将所需的力施加在轴承38上。
在图5中示出的另一个布置中，向外偏压轴承座70以保持涡盘之间的轴向间距大体上恒定。在此方面，可为如图所示的贝氏弹簧72或其它适合的弹簧的偏压器件定位在轴承座的内部部分74与固定壳体部分76之间以用于预先加载轴承座70。轴承座的轴向刚度大致小于偏压器件的刚度，且传送很小的预先加载或没有预先加载。
将理解的是，如本文所描述的轴承座装置也可在其它装置中得到应用，其它装置包括由轴承装置支承的用于旋转的轴，具有与真空泵的那些类似的轴向运动要求和径向运动要求。

Claims (6)

1.一种涡旋泵(10)，包括由轴承(38)支承的用于旋转的轴(14)，所述轴承通过轴承座(48)承载，所述轴承座具有相对于泵壳体(12)固定的大体上外部的径向部分(52)和相对于所述轴承固定的大体上内部的径向部分(54)，其中所述轴承座在所述内部部分与所述外部部分之间的径向方向上为刚性的，用以限制所述轴承的径向运动以便维持所述泵的动涡盘(20)和固定涡盘(22)之间的径向对准，并且在轴向方向上为挠性的，用以允许所述轴承的轴向运动。
2.根据权利要求1所述的泵，其特征在于，预先加载所述轴承座(48)以在第一轴向方向上施加轴向力到所述轴承(38)上，用于阻碍所述轴承在第二轴向方向上的轴向运动。
3.根据权利要求2所述的泵，其特征在于，所述轴承座(48)受到向内偏压以提供所述预先加载的轴向力。
4.根据权利要求2所述的泵，其特征在于，所述泵包括定位在所述壳体(12)与所述轴承座的一个内部部分(54)或所述轴承(38)之间的弹簧(72)，用于提供所述预先加载的轴向力。
5.根据前述权利要求中的任一项所述的泵，其特征在于，所述轴承座(48)具有在所述内部径向部分与所述外部径向部分之间的中间部分(62、80)，所述中间部分在所述径向方向上为刚性的，而在所述轴向方向上为挠性的。
6.根据权利要求5所述的泵，其特征在于，所述中间部分包括多个大体上径向地延伸的支承部分(62、80)，所述支承部分由穿过所述轴承座的开口(64、82)间隔开。
CN201180033805.0A 2010-07-08 2011-05-19 泵 Active CN103270248B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1011524.4A GB2481839B (en) 2010-07-08 2010-07-08 An axially flexible pump bearing carrier
GB1011524.4 2010-07-08
PCT/GB2011/050947 WO2012004579A2 (en) 2010-07-08 2011-05-19 Pump

Publications (2)

Publication Number Publication Date
CN103270248A CN103270248A (zh) 2013-08-28
CN103270248B true CN103270248B (zh) 2016-08-10

Family

ID=42712106

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201180033805.0A Active CN103270248B (zh) 2010-07-08 2011-05-19 泵

Country Status (9)

Country Link
US (1) US9631630B2 (zh)
EP (1) EP2591209B1 (zh)
JP (1) JP5934705B2 (zh)
KR (1) KR20130086201A (zh)
CN (1) CN103270248B (zh)
CA (1) CA2800392C (zh)
GB (1) GB2481839B (zh)
TW (1) TWI586898B (zh)
WO (1) WO2012004579A2 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5578159B2 (ja) * 2011-11-18 2014-08-27 株式会社豊田自動織機 車両用圧縮機
WO2015039008A1 (en) * 2013-09-15 2015-03-19 Schlumberger Canada Limited Electric submersible pump with reduced vibration
US9360013B2 (en) * 2013-12-11 2016-06-07 Agilent Technologies, Inc. Scroll pump having axially compliant spring element
JP6434854B2 (ja) * 2015-04-22 2018-12-05 三菱重工業株式会社 ラジアルピストン式油圧機械及びこれを備えた風力発電装置、並びに油圧機械のメンテナンス方法
JP2018135855A (ja) * 2017-02-23 2018-08-30 アネスト岩田株式会社 スクロール流体機械及びスクロール流体機械の製造方法
KR102163924B1 (ko) * 2019-01-11 2020-10-12 엘지전자 주식회사 전동 압축기
GB2604878A (en) * 2021-03-15 2022-09-21 Edwards Ltd Damper for a vacuum pump
CN113431781A (zh) * 2021-08-05 2021-09-24 临海市谭氏真空设备有限公司 干式涡旋真空泵

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1331166A (en) * 1970-10-23 1973-09-26 Pfeiffer Vakuumtechnik Bearing arrangement for molecular pumps

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH250450A (de) * 1945-04-27 1947-08-31 Skf Svenska Kullagerfab Ab Wälzlagereinrichtung.
CH600183A5 (zh) * 1976-10-29 1978-06-15 Voumard Machines Co Sa
US4963041A (en) * 1989-10-02 1990-10-16 Ingersoll-Rand Company Bearing mounting with self-compensation for thermal expansion
SE465527B (sv) * 1990-02-09 1991-09-23 Svenska Rotor Maskiner Ab Skruvrotormaskin med organ foer axialbalansering
JP2609839B2 (ja) * 1996-01-22 1997-05-14 株式会社東芝 スクロール型圧縮装置
DE60029641T2 (de) * 2000-05-01 2007-08-16 Van Doorne's Transmissie B.V. Rollenzellenpumpe
US7121817B2 (en) * 2002-05-30 2006-10-17 Anest Iwata Corporation Scroll fluid machine comprising compressing and expanding sections
JP2003343203A (ja) 2002-05-30 2003-12-03 Anest Iwata Corp 圧縮部と膨張部を備えたスクロール式流体機械
EP2088327B1 (en) * 2008-02-11 2011-08-31 Agilent Technologies Italia S.p.A. Support for rolling bearing
JP5347205B2 (ja) * 2009-02-25 2013-11-20 株式会社リッチストーン スクロール流体機械

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1331166A (en) * 1970-10-23 1973-09-26 Pfeiffer Vakuumtechnik Bearing arrangement for molecular pumps

Also Published As

Publication number Publication date
EP2591209B1 (en) 2020-02-12
TWI586898B (zh) 2017-06-11
US9631630B2 (en) 2017-04-25
GB2481839A (en) 2012-01-11
US20130089419A1 (en) 2013-04-11
CN103270248A (zh) 2013-08-28
EP2591209A2 (en) 2013-05-15
GB201011524D0 (en) 2010-08-25
WO2012004579A3 (en) 2013-02-28
JP2013531763A (ja) 2013-08-08
TW201207245A (en) 2012-02-16
CA2800392C (en) 2017-10-17
CA2800392A1 (en) 2012-01-12
JP5934705B2 (ja) 2016-06-15
GB2481839B (en) 2017-03-22
WO2012004579A2 (en) 2012-01-12
KR20130086201A (ko) 2013-07-31

Similar Documents

Publication Publication Date Title
CN103270248B (zh) 泵
RU2664086C2 (ru) Вращающийся узел, содержащий передаточный механизм и систему распределения масла
JP6525193B2 (ja) 潤滑システムが設けられた遊星トランスミッション
EP1975412A2 (en) Shaft seal device for oil-free rotary compressor
US8647085B2 (en) Scroll fluid machine having a communication passage between an inner periphery of lip seal and an outer periphery of drive shaft or ring
CN105473865B (zh) 具有润滑剂分配系统、轴承系统的离心压缩机和润滑方法
JP4510638B2 (ja) 玉軸受およびこの形式の軸受が装備された真空ポンプ
EP3489514B1 (en) Bidirectional-rotation-type scroll compressor
US7442016B2 (en) Scroll pump and method of assembling same
US8764378B2 (en) Centrifugal pump assembly
CN105683583B (zh) 具有冷却系统的离心压缩机和冷却系统
EP2602440A2 (en) Bearing arrangement
CN105473866B (zh) 具有轴承组件的离心压缩机
EP2527693B1 (en) Shaft sealing structure and rotary fluid machine
JP6559717B2 (ja) メカニカルシール
JP3854058B2 (ja) ギヤポンプ
US20190154048A1 (en) Vehicle having a pump device
US20200362829A1 (en) Bearing arrangement for a wind turbine and wind turbine
CN114599861A (zh) 飞行器的涡轮发动机
JP2002138970A (ja) ギヤポンプ

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant