DE10350431B3 - Damper with separating piston for damping vibrations has one seal in form of scraper with chamber to take dirt out of working cavity - Google Patents

Damper with separating piston for damping vibrations has one seal in form of scraper with chamber to take dirt out of working cavity Download PDF

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Publication number
DE10350431B3
DE10350431B3 DE2003150431 DE10350431A DE10350431B3 DE 10350431 B3 DE10350431 B3 DE 10350431B3 DE 2003150431 DE2003150431 DE 2003150431 DE 10350431 A DE10350431 A DE 10350431A DE 10350431 B3 DE10350431 B3 DE 10350431B3
Authority
DE
Germany
Prior art keywords
working cavity
chamber
scraper
damper
seal
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
DE2003150431
Other languages
German (de)
Inventor
Peter Wirth
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to DE2003150431 priority Critical patent/DE10350431B3/en
Priority to FR0411434A priority patent/FR2861823B1/en
Application granted granted Critical
Publication of DE10350431B3 publication Critical patent/DE10350431B3/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of 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
    • 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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/066—Units characterised by the partition, baffle or like element
    • F16F9/067—Partitions of the piston type, e.g. sliding 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)

Abstract

The damper is in the form of a piston-cylinder unit with a working cavity in a cylinder also containing an axially moving separating piston (13) acted on by a fluid. The piston has at least two seals and one chamber connected to a working cavity. One seal (37) is in the form of the scraper for a chamber (41) which collects the dirt from the working cavity (11b). There is a flow connection between the working cavity and chamber, formed by an annular web (51) of the piston and the inner wall of the cylinder.
DE2003150431 2003-10-29 2003-10-29 Damper with separating piston for damping vibrations has one seal in form of scraper with chamber to take dirt out of working cavity Expired - Fee Related DE10350431B3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003150431 DE10350431B3 (en) 2003-10-29 2003-10-29 Damper with separating piston for damping vibrations has one seal in form of scraper with chamber to take dirt out of working cavity
FR0411434A FR2861823B1 (en) 2003-10-29 2004-10-27 OSCILLATION DAMPER COMPRISING A SEPARATION PISTON

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003150431 DE10350431B3 (en) 2003-10-29 2003-10-29 Damper with separating piston for damping vibrations has one seal in form of scraper with chamber to take dirt out of working cavity

Publications (1)

Publication Number Publication Date
DE10350431B3 true DE10350431B3 (en) 2005-03-10

Family

ID=34178050

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003150431 Expired - Fee Related DE10350431B3 (en) 2003-10-29 2003-10-29 Damper with separating piston for damping vibrations has one seal in form of scraper with chamber to take dirt out of working cavity

Country Status (2)

Country Link
DE (1) DE10350431B3 (en)
FR (1) FR2861823B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014056339A1 (en) * 2012-10-08 2014-04-17 Beijingwest Industries Co., Ltd. A fluid damper assembly with gas cup lubrication chamber
EP2006567A3 (en) * 2007-06-20 2016-04-13 BWI Company Limited S.A. Gas cup assembly and damper having same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014203077A1 (en) * 2014-02-20 2015-08-20 Zf Friedrichshafen Ag Separating piston for a vibration damper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707633C1 (en) * 1997-02-26 1998-07-09 Mannesmann Sachs Ag Seal between two axially moving components in e.g. shock absorber
DE19756443C1 (en) * 1997-12-18 1999-02-11 Mannesmann Sachs Ag Piston for vibration damping unit
EP1221559A2 (en) * 2001-01-09 2002-07-10 Julius Blum Gesellschaft m.b.H. Braking and damping device, in particular for moving furniture parts
EP1253345A2 (en) * 2001-04-25 2002-10-30 Yamaha Hatsudoki Kabushiki Kaisha A piston and a damping means with a piston

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2329504A1 (en) * 1972-06-22 1974-01-31 Strazdins Atis SEAL FOR CYLINDER AND PISTON MOVING BACK AND BACK IN CYLINDER
DE2461455C3 (en) * 1974-12-24 1980-07-24 Walter 8770 Lohr Hunger Seal, especially for hydraulically operated cylinder pistons and piston rods
US4484512A (en) * 1981-09-10 1984-11-27 Jacques Dechavanne Seal, scraper, and guide for double-acting piston
SU1013666A1 (en) * 1981-12-10 1983-04-23 Киевский Автомобильно-Дорожный Институт Им.60-Летия Великой Октябрьской Социалистической Революции Oil-control piston ring
FR2605701B1 (en) * 1986-10-22 1990-01-12 Cables De Lyon Geoffroy Delore SEALING RING FOR A TRAY FOLLOWING A PUMP FOR EXTRACTING VISCOUS PRODUCTS PACKAGED IN DRUMS
SU1580049A1 (en) * 1988-06-01 1990-07-23 Производственное объединение "Волгодизельмаш" Cylinder and piston unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707633C1 (en) * 1997-02-26 1998-07-09 Mannesmann Sachs Ag Seal between two axially moving components in e.g. shock absorber
DE19756443C1 (en) * 1997-12-18 1999-02-11 Mannesmann Sachs Ag Piston for vibration damping unit
EP1221559A2 (en) * 2001-01-09 2002-07-10 Julius Blum Gesellschaft m.b.H. Braking and damping device, in particular for moving furniture parts
EP1253345A2 (en) * 2001-04-25 2002-10-30 Yamaha Hatsudoki Kabushiki Kaisha A piston and a damping means with a piston

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 63 280 941 A (Abstract) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2006567A3 (en) * 2007-06-20 2016-04-13 BWI Company Limited S.A. Gas cup assembly and damper having same
WO2014056339A1 (en) * 2012-10-08 2014-04-17 Beijingwest Industries Co., Ltd. A fluid damper assembly with gas cup lubrication chamber

Also Published As

Publication number Publication date
FR2861823B1 (en) 2008-10-24
FR2861823A1 (en) 2005-05-06

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
8364 No opposition during term of opposition
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee