DE20210669U1 - Elastomer seal, especially for sealing between a piston and a cylinder of a clutch has a cross section with two zones which respectively fulfill a sealing function and reduce the radial compressive stresses - Google Patents

Elastomer seal, especially for sealing between a piston and a cylinder of a clutch has a cross section with two zones which respectively fulfill a sealing function and reduce the radial compressive stresses

Info

Publication number
DE20210669U1
DE20210669U1 DE20210669U DE20210669U DE20210669U1 DE 20210669 U1 DE20210669 U1 DE 20210669U1 DE 20210669 U DE20210669 U DE 20210669U DE 20210669 U DE20210669 U DE 20210669U DE 20210669 U1 DE20210669 U1 DE 20210669U1
Authority
DE
Germany
Prior art keywords
seal
clutch
piston
sealing
section
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
DE20210669U
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.)
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 DE20210669U priority Critical patent/DE20210669U1/en
Publication of DE20210669U1 publication Critical patent/DE20210669U1/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The elastomer seal (1), in particular, between a piston (6) and a cylinder (8) of a clutch has a cross section comprising zones (2, 3) which respectively serve for sealing the pressurized space (9) and for reducing the radial compressive stresses and keeping them constant over the range of working temperatures.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (7)

1. Elastomere Dichtung (1) zwischen mechanisch beweg­ lichen Elementen, insbesondere zwischen einem Kolben (6) und einem Zylinder (8) einer Kupplung mit einem im wesent­ lichen ringförmigen Querschnitt, dadurch gekenn­ zeichnet, dass die Dichtung (1) im Querschnitt der Mantelfläche einen ersten (2) und einen zweiten Be­ reich (3) aufweist, wobei der erste Bereich (2) im wesent­ lichen einen Druckraum (9) abdichtet und der zweite Bereich (3) im wesentlichen Druckspannungen in radialer Richtung der Dichtung (1) über unterschiedliche Temperaturen eines Arbeitsbereich einer Kupplung reduziert und konstant hält.1. Elastomeric seal ( 1 ) between mechanically movable elements, in particular between a piston ( 6 ) and a cylinder ( 8 ) of a clutch with an essentially annular cross-section, characterized in that the seal ( 1 ) in cross section of the lateral surface has a first ( 2 ) and a second loading area ( 3 ), the first area ( 2 ) essentially sealing a pressure chamber ( 9 ) and the second area ( 3 ) essentially compressive stresses in the radial direction of the seal ( 1 ) different temperatures of a working area of a clutch are reduced and kept constant. 2. Elastomere Dichtung nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Bereich (3) der Dichtung (1) eine Fußform und/oder eine Kerbe oder eine Nut (4) aufweist, welche eine radiale Weichheit der Dich­ tung (1) erzeugen und die Reibungskräfte der Dichtung (1) insbesondere an dem ersten Bereich (2) reduzieren und über unterschiedliche Temperaturen konstant halten und die Bewe­ gung des Kolbens (6) gleichmäßig durchführbar gestalten.That the second portion (3) having 2. Elastomeric seal according to claim 1, characterized in that the seal (1) has a foot shape, and / or a notch or a groove (4) which tung a radial softness you produce (1) and reduce the frictional forces of the seal ( 1 ), particularly on the first region ( 2 ), and keep it constant over different temperatures, and make the movement of the piston ( 6 ) evenly feasible. 3. Elastomere Dichtung (1) nach einem der vorangehen­ den Ansprüchen, dadurch gekennzeichnet, dass der erste Bereich der Dichtung (2) an seiner Reibflä­ che ein mechanisch belastbares Material aufweist, welches über unterschiedliche Temperaturen ein gleichmäßiges Reib­ verhalten aufweist. 3. Elastomeric seal ( 1 ) according to one of the preceding claims, characterized in that the first region of the seal ( 2 ) on its Reibflä surface has a mechanically resilient material which has a uniform friction over different temperatures. 4. Elastomere Dichtung (1) nach einem der vorangehen­ den Ansprüchen, dadurch gekennzeichnet, dass das mechanisch belastbare Material ein thermoplasti­ scher Kunststoff, wie beispielsweise ein PTFE-Compount, ist.4. Elastomeric seal ( 1 ) according to one of the preceding claims, characterized in that the mechanically resilient material is a thermoplastic plastic, such as a PTFE component. 5. Elastomere Dichtung (1) nach einem der vorangehen­ den Ansprüchen, dadurch gekennzeichnet, dass das mechanisch belastbare Material als eine Beschich­ tung am ersten Bereich ausgebildet ist.5. Elastomeric seal ( 1 ) according to one of the preceding claims, characterized in that the mechanically resilient material is designed as a coating device on the first region. 6. Elastomere Dichtung (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass ein Kombinationselement (10) aus mechanisch belastbarem Materi­ al dem ersten Bereich der Dichtung (2) zugeordnet ist.6. elastomeric seal ( 1 ) according to one of claims 1 to 4, characterized in that a combination element ( 10 ) made of mechanically resilient material is assigned to the first region of the seal ( 2 ). 7. Dichtung (1) nach einem der vorangehenden Ansprü­ chen, dadurch gekennzeichnet, dass die Dichtung (1) eine Außen- oder Innendichtung ist.7. Seal ( 1 ) according to one of the preceding claims, characterized in that the seal ( 1 ) is an outer or inner seal.
DE20210669U 2002-07-10 2002-07-10 Elastomer seal, especially for sealing between a piston and a cylinder of a clutch has a cross section with two zones which respectively fulfill a sealing function and reduce the radial compressive stresses Expired - Lifetime DE20210669U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20210669U DE20210669U1 (en) 2002-07-10 2002-07-10 Elastomer seal, especially for sealing between a piston and a cylinder of a clutch has a cross section with two zones which respectively fulfill a sealing function and reduce the radial compressive stresses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20210669U DE20210669U1 (en) 2002-07-10 2002-07-10 Elastomer seal, especially for sealing between a piston and a cylinder of a clutch has a cross section with two zones which respectively fulfill a sealing function and reduce the radial compressive stresses

Publications (1)

Publication Number Publication Date
DE20210669U1 true DE20210669U1 (en) 2003-02-20

Family

ID=7973038

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20210669U Expired - Lifetime DE20210669U1 (en) 2002-07-10 2002-07-10 Elastomer seal, especially for sealing between a piston and a cylinder of a clutch has a cross section with two zones which respectively fulfill a sealing function and reduce the radial compressive stresses

Country Status (1)

Country Link
DE (1) DE20210669U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342273A1 (en) * 2003-09-12 2005-04-07 Volkswagen Ag Sealing ring for a piston rod especially for an oscillation damper uses an elastomer coated with a friction reducing layer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342273A1 (en) * 2003-09-12 2005-04-07 Volkswagen Ag Sealing ring for a piston rod especially for an oscillation damper uses an elastomer coated with a friction reducing layer

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Effective date: 20030327

R163 Identified publications notified

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R156 Lapse of ip right after 3 years

Effective date: 20060201