DE202005021162U1 - Sealing ring system, e.g. for pistons, comprises inner ring which presses sliding ring fitted over it against wall of cylinder, surface of sliding ring which faces cylinder wall is concave so that fluid can flow over it as piston moves - Google Patents

Sealing ring system, e.g. for pistons, comprises inner ring which presses sliding ring fitted over it against wall of cylinder, surface of sliding ring which faces cylinder wall is concave so that fluid can flow over it as piston moves Download PDF

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Publication number
DE202005021162U1
DE202005021162U1 DE200520021162 DE202005021162U DE202005021162U1 DE 202005021162 U1 DE202005021162 U1 DE 202005021162U1 DE 200520021162 DE200520021162 DE 200520021162 DE 202005021162 U DE202005021162 U DE 202005021162U DE 202005021162 U1 DE202005021162 U1 DE 202005021162U1
Authority
DE
Germany
Prior art keywords
cylinder
ring
sliding ring
wall
pistons
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
DE200520021162
Other languages
German (de)
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
Priority to DE200520021162 priority Critical patent/DE202005021162U1/en
Priority claimed from EP05008632A external-priority patent/EP1715222A1/en
Publication of DE202005021162U1 publication Critical patent/DE202005021162U1/en
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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/368—Sealings in pistons
    • 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
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings

Landscapes

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

Abstract

The sealing ring system, e.g. for pistons, comprises an inner ring (2) which presses a sliding ring (1) fitted over it against the wall (5) of a cylinder. The surface (4) of the sliding ring which faces the cylinder wall is concave so that fluid can flow over it as the piston moves.
DE200520021162 2005-04-20 2005-04-20 Sealing ring system, e.g. for pistons, comprises inner ring which presses sliding ring fitted over it against wall of cylinder, surface of sliding ring which faces cylinder wall is concave so that fluid can flow over it as piston moves Expired - Lifetime DE202005021162U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200520021162 DE202005021162U1 (en) 2005-04-20 2005-04-20 Sealing ring system, e.g. for pistons, comprises inner ring which presses sliding ring fitted over it against wall of cylinder, surface of sliding ring which faces cylinder wall is concave so that fluid can flow over it as piston moves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200520021162 DE202005021162U1 (en) 2005-04-20 2005-04-20 Sealing ring system, e.g. for pistons, comprises inner ring which presses sliding ring fitted over it against wall of cylinder, surface of sliding ring which faces cylinder wall is concave so that fluid can flow over it as piston moves
EP05008632A EP1715222A1 (en) 2005-04-20 2005-04-20 Low friction seal

Publications (1)

Publication Number Publication Date
DE202005021162U1 true DE202005021162U1 (en) 2007-04-12

Family

ID=37983003

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200520021162 Expired - Lifetime DE202005021162U1 (en) 2005-04-20 2005-04-20 Sealing ring system, e.g. for pistons, comprises inner ring which presses sliding ring fitted over it against wall of cylinder, surface of sliding ring which faces cylinder wall is concave so that fluid can flow over it as piston moves

Country Status (1)

Country Link
DE (1) DE202005021162U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010033088A1 (en) 2010-08-02 2012-02-02 Schaeffler Technologies Gmbh & Co. Kg Sealing device for lifting cylinder e.g. stroke/working piston of combustion engine, has coils which are arranged adjacent to variable-viscosity electrorheological fluid, such that viscosity of fluid is made more variable by the coils
DE102011003744A1 (en) * 2011-02-08 2012-08-09 Aktiebolaget Skf sealing arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010033088A1 (en) 2010-08-02 2012-02-02 Schaeffler Technologies Gmbh & Co. Kg Sealing device for lifting cylinder e.g. stroke/working piston of combustion engine, has coils which are arranged adjacent to variable-viscosity electrorheological fluid, such that viscosity of fluid is made more variable by the coils
DE102011003744A1 (en) * 2011-02-08 2012-08-09 Aktiebolaget Skf sealing arrangement

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20070516

R150 Term of protection extended to 6 years

Effective date: 20080507

R151 Term of protection extended to 8 years

Effective date: 20110510

R152 Term of protection extended to 10 years

Effective date: 20130508

R071 Expiry of right