FR2381949A1 - SLIDING SEAL FOR PISTONS AND PISTON RODS - Google Patents

SLIDING SEAL FOR PISTONS AND PISTON RODS

Info

Publication number
FR2381949A1
FR2381949A1 FR7805332A FR7805332A FR2381949A1 FR 2381949 A1 FR2381949 A1 FR 2381949A1 FR 7805332 A FR7805332 A FR 7805332A FR 7805332 A FR7805332 A FR 7805332A FR 2381949 A1 FR2381949 A1 FR 2381949A1
Authority
FR
France
Prior art keywords
pistons
piston rods
pressure
sliding seal
sealing ring
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
Application number
FR7805332A
Other languages
French (fr)
Inventor
Herbert Urbaschek
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.)
Taunus Armaturen GmbH
Original Assignee
Taunus Armaturen GmbH
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 Taunus Armaturen GmbH filed Critical Taunus Armaturen GmbH
Publication of FR2381949A1 publication Critical patent/FR2381949A1/en
Pending 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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/324—Arrangements for lubrication or cooling of the sealing itself
    • 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
    • F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
    • 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
    • F16J15/166—Sealings between relatively-moving surfaces with means to prevent the extrusion of the packing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

Garniture d'étanchéité coulissante pour pistons et tiges de piston, constituée par une combinaison de bagues d'étanchéité et de graissage. Au moyen d'une multiplication de pression à l'intérieur de la garniture combinée, par un serrage axial avec écartement radial par un serrage radial et/ou une armature textile spéciale de la bague d'étanchéité elle-même on obtient une pression partielle élevée qui impose une marche pratiquement absolument à sec de la garniture combinée, tandis qu'entre la bague d'étanchéité et le flanc de rainure éloigné de l'espace sous pression est montée une bague cn matière plastiquement déformable et non autolubrifiante contenant une proportion importante de lubrifiant sec minéral. L'invention est applicable entre autres à des vérins et accumulateurs de pression.Sliding seal for pistons and piston rods, consisting of a combination of sealing and lubricating rings. By means of a pressure increase inside the combined seal, by axial clamping with radial spacing by radial clamping and / or a special textile reinforcement of the sealing ring itself a high partial pressure is obtained. which imposes a practically absolutely dry running of the combined seal, while between the sealing ring and the groove flank remote from the pressure space is mounted a plastically deformable and non-self-lubricating material ring containing a large proportion of mineral dry lubricant. The invention is applicable, inter alia, to pressure cylinders and accumulators.

FR7805332A 1977-02-26 1978-02-24 SLIDING SEAL FOR PISTONS AND PISTON RODS Pending FR2381949A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2708456A DE2708456B2 (en) 1977-02-26 1977-02-26 Sliding seal for pistons and piston rods

Publications (1)

Publication Number Publication Date
FR2381949A1 true FR2381949A1 (en) 1978-09-22

Family

ID=6002275

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805332A Pending FR2381949A1 (en) 1977-02-26 1978-02-24 SLIDING SEAL FOR PISTONS AND PISTON RODS

Country Status (6)

Country Link
JP (1) JPS53112360A (en)
CA (1) CA1136173A (en)
DE (1) DE2708456B2 (en)
FR (1) FR2381949A1 (en)
GB (1) GB1601674A (en)
SE (1) SE7802215L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2975148A1 (en) * 2011-05-13 2012-11-16 Peugeot Citroen Automobiles Sa Device for protecting shaft of car, has sleeve including bore with inlet portion having camelback shaped longitudinal section, where vertices of section are dimensioned to compress seal during removal of shaft from sleeve to lubricate shaft

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863189U (en) * 1981-10-24 1983-04-27 極東マツク・グレゴ−株式会社 Watertight device for hatch lid
US4576386A (en) * 1985-01-16 1986-03-18 W. S. Shamban & Company Anti-extrusion back-up ring assembly
JP2535098Y2 (en) * 1991-08-26 1997-05-07 三菱電線工業株式会社 Sealing device
DE4230123A1 (en) * 1992-09-09 1994-03-17 Fichtel & Sachs Ag Cylinders for hydraulic and / or pneumatic systems
US7726339B2 (en) * 2006-01-14 2010-06-01 Dresser, Inc. Seal cartridge control valve
US9073527B2 (en) * 2011-03-31 2015-07-07 Haldex Brake Corporation Smooth bore dynamic center seal for spring brake actuator
EP2573337B1 (en) * 2011-09-23 2014-11-12 Arno Hofmann Assembly of a gate valve and a seal system for sealing the gate valve of a thermal engine
DE102014106488B4 (en) 2014-05-08 2024-01-04 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Recirculating ball steering with sliding element
US11041511B2 (en) * 2018-04-05 2021-06-22 Caterpillar Global Mining Llc Hydraulic cylinder service life improvement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797971A (en) * 1955-11-14 1957-07-02 Cleveland Pneumatic Tool Co Sectional fluid seal
DE2457762B2 (en) * 1974-12-06 1976-09-16 Urbaschek, Herbert, 6395 Weilrod SEAL FOR PISTON OR PISTON RODS OF WORK CYLINDERS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797971A (en) * 1955-11-14 1957-07-02 Cleveland Pneumatic Tool Co Sectional fluid seal
DE2457762B2 (en) * 1974-12-06 1976-09-16 Urbaschek, Herbert, 6395 Weilrod SEAL FOR PISTON OR PISTON RODS OF WORK CYLINDERS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2975148A1 (en) * 2011-05-13 2012-11-16 Peugeot Citroen Automobiles Sa Device for protecting shaft of car, has sleeve including bore with inlet portion having camelback shaped longitudinal section, where vertices of section are dimensioned to compress seal during removal of shaft from sleeve to lubricate shaft

Also Published As

Publication number Publication date
DE2708456B2 (en) 1980-10-02
DE2708456A1 (en) 1978-08-31
GB1601674A (en) 1981-11-04
CA1136173A (en) 1982-11-23
SE7802215L (en) 1978-08-27
JPS53112360A (en) 1978-09-30

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Legal Events

Date Code Title Description
TP Transmission of property