ES2030132T3 - Junta. - Google Patents

Junta.

Info

Publication number
ES2030132T3
ES2030132T3 ES198888116424T ES88116424T ES2030132T3 ES 2030132 T3 ES2030132 T3 ES 2030132T3 ES 198888116424 T ES198888116424 T ES 198888116424T ES 88116424 T ES88116424 T ES 88116424T ES 2030132 T3 ES2030132 T3 ES 2030132T3
Authority
ES
Spain
Prior art keywords
gap
helical
sealed space
seal
helical groove
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 - Lifetime
Application number
ES198888116424T
Other languages
English (en)
Inventor
Gerhard Dr. Kilthau
Karl Heinrich Dr. Spies
Rolf Vogt
Peter Dr. Freilander
Toni Dr. Seethaler
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Application granted granted Critical
Publication of ES2030132T3 publication Critical patent/ES2030132T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sealing Of Bearings (AREA)

Abstract

UNA OBTURACION PARA LA RANURA ENTRE DOS PARTES DE MAQUINA (1, 2) GIRATORIAS RELATIVAMENTE EN QUE AL MENOS UNA DE AMBAS SUPERFICIES DIRIGIDAS A LA OTRA ESTA PROVISTA CON AL MENOS UNA RANURA ROSCADA (3) QUE EN DIRECCION DEL ESPACIO CERRADO (4) TIENE UN EFECTO DE TRANSPORTE Y EN A PARTE DIRIGIDA A LA RANURA ROSCADA (3) EN EL ESPACIO CERRADO (4) SE EXTIENDE DELANTE UNA OBTURACION CONECTADA. LA OBTURACION CONECTADA COMPRENDE UN IMAN ANULAR (5) QUE SE ACERCA A LA SUPERFICIE CONTRAPUESTA HASTA UNA ESTRECHA DISTANCIA. EN LA RANURA FORMADA (6) SE COLOCA UN FLUIDO FERROSO Y SU ANCHO RADIAL COINCIDE CON LA DISTANCIA DE LOS PASOS DE ROSCA COLOCADOS ENTRE LAS RANURAS ROSCADAS (3) DE LAS SUPERFICIES CONTRAPUESTAS.
ES198888116424T 1988-02-17 1988-10-05 Junta. Expired - Lifetime ES2030132T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3804844 1988-02-17

Publications (1)

Publication Number Publication Date
ES2030132T3 true ES2030132T3 (es) 1992-10-16

Family

ID=6347541

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888116424T Expired - Lifetime ES2030132T3 (es) 1988-02-17 1988-10-05 Junta.

Country Status (7)

Country Link
US (1) US4948152A (es)
EP (1) EP0328737B1 (es)
JP (1) JP2544797B2 (es)
AT (1) ATE73915T1 (es)
CA (1) CA1337910C (es)
DE (1) DE3869387D1 (es)
ES (1) ES2030132T3 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5417507A (en) * 1989-10-07 1995-05-23 Hitachi, Ltd. Vertical motor, method of manufacturing same, polygon mirror motor using said motor, and bearing device for use in said motor
US5322298A (en) * 1992-06-09 1994-06-21 Dresser-Rand Company Shaft seal
US6065755A (en) * 1993-05-21 2000-05-23 Jm Clipper Corporation Seal device
JP4073064B2 (ja) * 1997-12-02 2008-04-09 株式会社リガク 耐磁場磁性流体シール装置
EP1491800A1 (en) * 2003-06-27 2004-12-29 Parker-Hannifin Corporation Compliant viscous seal for fluid transfer device
US7188840B2 (en) * 2003-07-07 2007-03-13 Zhixin Li Magnetic fluidic seal with improved pressure capacity
CN101776151B (zh) * 2010-03-08 2011-08-03 北京交通大学 一种往复轴磁性液体密封结构
WO2012132832A1 (ja) * 2011-03-30 2012-10-04 イーグル工業株式会社 シール装置
CN104373601A (zh) * 2014-10-28 2015-02-25 北京交通大学 一种极靴上开高低齿的磁性液体密封装置
DE102015116883A1 (de) * 2015-10-05 2017-04-06 TRüTZSCHLER GMBH & CO. KG Nadelmaschine
US11261972B1 (en) * 2020-11-23 2022-03-01 Tsinghua University Combined sealing device with magnetic fluid

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746407A (en) * 1971-08-13 1973-07-17 Litton Systems Inc Ferrohydrodynamic low friction bearing
US3726574A (en) * 1971-08-13 1973-04-10 Litton Systems Inc Ferrohydrodynamic low-friction bearing with volume compensation
US3834775A (en) * 1972-05-26 1974-09-10 Litton Systems Inc Ferrohydrodynamic low-friction bearing with improved volume compensation and fluid seal
US3788275A (en) * 1972-06-28 1974-01-29 Xerox Corp Magnetic shielding apparatus
JPS57167566A (en) * 1981-04-10 1982-10-15 Hitachi Ltd Vacuum seal for turning shaft
JPS5874967A (ja) * 1981-10-30 1983-05-06 Hitachi Ltd 軸封装置
US4486026A (en) * 1982-02-10 1984-12-04 Nippon Seiko K.K. Sealing and bearing means by use of ferrofluid
JPH066874A (ja) * 1992-06-19 1994-01-14 Toshiba Corp 遠方監視制御装置

Also Published As

Publication number Publication date
US4948152A (en) 1990-08-14
EP0328737B1 (de) 1992-03-18
EP0328737A1 (de) 1989-08-23
JP2544797B2 (ja) 1996-10-16
DE3869387D1 (de) 1992-04-23
JPH01250678A (ja) 1989-10-05
CA1337910C (en) 1996-01-09
ATE73915T1 (de) 1992-04-15

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