DE69118074T2 - Dynamisches Drucklager für eine Röntgenröhre mit Drehanode - Google Patents

Dynamisches Drucklager für eine Röntgenröhre mit Drehanode

Info

Publication number
DE69118074T2
DE69118074T2 DE69118074T DE69118074T DE69118074T2 DE 69118074 T2 DE69118074 T2 DE 69118074T2 DE 69118074 T DE69118074 T DE 69118074T DE 69118074 T DE69118074 T DE 69118074T DE 69118074 T2 DE69118074 T2 DE 69118074T2
Authority
DE
Germany
Prior art keywords
ray tube
dynamic pressure
pressure bearing
rotating anode
anode
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.)
Expired - Fee Related
Application number
DE69118074T
Other languages
English (en)
Other versions
DE69118074D1 (de
Inventor
Takeshi Takahashi
Ken-Ichi Kakumoto
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.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko Co 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 Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Application granted granted Critical
Publication of DE69118074D1 publication Critical patent/DE69118074D1/de
Publication of DE69118074T2 publication Critical patent/DE69118074T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/001—Shear force 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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/107—Grooves for generating pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes
    • H01J35/101—Arrangements for rotating anodes, e.g. supporting means, means for greasing, means for sealing the axle or means for shielding or protecting the driving
    • H01J35/1017—Bearings for rotating anodes
    • H01J35/104—Fluid bearings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/10—Drive means for anode (target) substrate
    • H01J2235/1006—Supports or shafts for target or substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/10—Drive means for anode (target) substrate
    • H01J2235/1046—Bearings and bearing contact surfaces
    • H01J2235/106—Dynamic pressure bearings, e.g. helical groove type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/12—Cooling
    • H01J2235/1225—Cooling characterised by method
    • H01J2235/1262—Circulating fluids
    • H01J2235/1266—Circulating fluids flow being via moving conduit or shaft
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S384/00—Bearings
    • Y10S384/90—Cooling or heating
    • Y10S384/912—Metallic

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
DE69118074T 1990-09-28 1991-09-24 Dynamisches Drucklager für eine Röntgenröhre mit Drehanode Expired - Fee Related DE69118074T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10302890 1990-09-28

Publications (2)

Publication Number Publication Date
DE69118074D1 DE69118074D1 (de) 1996-04-25
DE69118074T2 true DE69118074T2 (de) 1996-10-02

Family

ID=14343197

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69118074T Expired - Fee Related DE69118074T2 (de) 1990-09-28 1991-09-24 Dynamisches Drucklager für eine Röntgenröhre mit Drehanode

Country Status (3)

Country Link
US (1) US5169243A (de)
EP (1) EP0477868B1 (de)
DE (1) DE69118074T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2093256C (en) * 1992-04-08 1999-06-01 Katsuhiro Ono X-ray tube of the rotary anode type
DE19614841C2 (de) * 1996-04-15 1998-11-05 Siemens Ag Flüssigmetall-Gleitlager mit Kühllanze
US6445769B1 (en) * 2000-10-25 2002-09-03 Koninklijke Philips Electronics N.V. Internal bearing cooling using forced air
JP2002216683A (ja) 2001-01-22 2002-08-02 Toshiba Corp 回転陽極型ｘ線管装置
AU2002353321A1 (en) * 2001-12-13 2003-06-23 Koninklijke Philips Electronics N.V. Device for generating x-rays having an integrated anode and bearing member
US7016146B2 (en) * 2002-03-12 2006-03-21 Minebea Co., Ltd. Low power spindle motor with a fluid dynamic spool bearing
US6891928B2 (en) * 2003-05-07 2005-05-10 Ge Medical Systems Liquid metal gasket in x-ray tubes
EP2487702B1 (de) * 2003-10-17 2013-09-25 Kabushiki Kaisha Toshiba Röntgenröhre
US7896550B1 (en) * 2006-05-04 2011-03-01 Florida Turbine Technologies, Inc. Hydrodynamic liquid metal bearing
CN103939484A (zh) * 2014-04-09 2014-07-23 浙江优特轴承有限公司 隔热式x光管连接轴连轴承

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132551A (ja) * 1983-01-20 1984-07-30 Toshiba Corp 回転陽極型ｘ線管
NL8303422A (nl) * 1983-10-06 1985-05-01 Philips Nv Roentgenbuis met draaianode.
EP0240674B1 (de) * 1986-04-08 1992-08-05 Ebara Corporation Pumpe
JP2907866B2 (ja) * 1988-07-06 1999-06-21 株式会社東芝 回転陽極ｘ線管
DE3842034A1 (de) * 1988-12-14 1990-06-21 Philips Patentverwaltung Drehanoden-roentgenroehre mit fluessigem schmiermittel

Also Published As

Publication number Publication date
EP0477868B1 (de) 1996-03-20
US5169243A (en) 1992-12-08
DE69118074D1 (de) 1996-04-25
EP0477868A1 (de) 1992-04-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee