EP0459022A1 - Joint de tige de soupape - Google Patents

Joint de tige de soupape Download PDF

Info

Publication number
EP0459022A1
EP0459022A1 EP90123181A EP90123181A EP0459022A1 EP 0459022 A1 EP0459022 A1 EP 0459022A1 EP 90123181 A EP90123181 A EP 90123181A EP 90123181 A EP90123181 A EP 90123181A EP 0459022 A1 EP0459022 A1 EP 0459022A1
Authority
EP
European Patent Office
Prior art keywords
valve stem
stem seal
tubular body
valve
adhesive part
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.)
Withdrawn
Application number
EP90123181A
Other languages
German (de)
English (en)
Inventor
Clifford Roland Worsley
Bert Dr. Brauers
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.)
Goetze GmbH
Original Assignee
Goetze 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 Goetze GmbH filed Critical Goetze GmbH
Publication of EP0459022A1 publication Critical patent/EP0459022A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant

Definitions

  • the invention relates to a valve stem seal for internal combustion engines with a sealing part which is deformed to form a sealing lip and lies sealingly on the valve stem, and an adhesive part which rests on a valve guide and is made of elastomeric material, the valve stem seal being pressed and held in a dimensionally stable tubular body.
  • DE-OS 30 13 955 discloses a generic valve stem seal.
  • the elastomeric valve stem seal is held in a form-fitting manner in a tubular body designed as a spring plate.
  • the valve stem seal At the end area of the adhesive part, the valve stem seal has a radially angled edge, which is enclosed by a corresponding section of the tubular body or spring plate.
  • the valve stem seal, in particular the adhesive part is designed in the seat area with an overlap to the valve guide in order to create a static tightness.
  • the bent portion of the tubular body prevents the valve stem seal from being pushed axially through the tubular body by the valve guide during assembly.
  • Valve stem seals according to DE-OS 30 13 955 cannot be used in such engines, since the radially angled edge of the valve stem seal cannot be made large enough to prevent the valve stem seal from being pressed through the tubular body during assembly.
  • the invention has for its object to improve generic valve stem seals with a view to particularly narrow installation spaces in such a way that a safe and permanent connection between the tubular body and valve stem seal is ensured, in particular during assembly.
  • This object is achieved in that the inner peripheral surface of the tubular body tapers conically in the region of the adhesive part in the direction of the sealing part. This measure has the effect that an axial restoring force component is produced during assembly from the radial deformation of the adhesive part. This force is sufficient to hold the valve stem seal in the tubular body; further aids on the valve stem seal, such as radially directed projections or costly adhesive connections, are not necessary.
  • the The outer peripheral contour of the adhesive part of the valve stem seal is designed to correspond to the conical taper of the tubular body. This ensures an almost uniform radial force in the adhesive part over the entire seating area.
  • the tubular body is preferably made of metal and has at one end area a radially directed flange which, when installed, extends between an end area of a valve spring and a counter surface.
  • valve stem seal (1) with a tubular body (2) designed as a spring seat ring in half section.
  • the valve stem seal is pushed onto a valve guide (3).
  • the valve stem seal (1) has a sealing part (4) which is deformed into a sealing lip. After assembly, this sealing part rests on the valve stem (10) to be sealed.
  • the valve stem seal (1) has an adhesive part (5) lying against the valve guide (3).
  • the valve stem seal (1) is tied into the tubular body (2). This means that during assembly, i.e. when sliding onto the valve guide (3) Valve stem seal (1) is not pressed out of the tubular body (2), the inner circumferential surface (6) in the area of the adhesive part (5) tapers conically in the direction of the sealing part (4). In this way, there is no need for a radially directed flange at the end region of the adhesive part, as a result of which material is saved.
  • Another advantage is the easier assembly of the valve stem seal (1) in the tubular body (2), namely due to the insertion bevel formed by the conical taper (6).
  • the tubular body (2) is made of metal and is produced using the deep-drawing process, the conical taper (6) is also formed directly, at the same time the tubular body (2) can be designed as a spring seat ring, i.e. the spring (9) necessary for the valve train. is supported on a radially directed flange (7), which in turn rests on the counter surface (8) (engine block).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP90123181A 1990-05-26 1990-12-04 Joint de tige de soupape Withdrawn EP0459022A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4017010 1990-05-26
DE19904017010 DE4017010A1 (de) 1990-05-26 1990-05-26 Ventilschaftabdichtung

Publications (1)

Publication Number Publication Date
EP0459022A1 true EP0459022A1 (fr) 1991-12-04

Family

ID=6407263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90123181A Withdrawn EP0459022A1 (fr) 1990-05-26 1990-12-04 Joint de tige de soupape

Country Status (2)

Country Link
EP (1) EP0459022A1 (fr)
DE (1) DE4017010A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566059A1 (fr) * 1992-04-14 1993-10-20 RFT S.p.A. Etanchéité de tige se déplaçant contre l'action de moyens élastiques, en particulier pour tige de soupape de moteur à combustion interne
EP1164257A1 (fr) * 2000-06-14 2001-12-19 Firma Carl Freudenberg Ensemble de soupape pour moteur à combustion interne

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB983024A (en) * 1962-12-01 1965-02-10 Steels & Busks Ltd Liquid sealing element

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550247A1 (de) * 1966-05-13 1969-07-10 Goetzewerke Ventilschaftabdichtung
IT7967950A0 (it) * 1979-05-07 1979-05-07 Supertex Spa Gruppo costituito da guarnizione di tenuta per steli di valvole e da scodellino di appoggio molle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB983024A (en) * 1962-12-01 1965-02-10 Steels & Busks Ltd Liquid sealing element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 29 (M-356)(1752) 07 Februar 1985, & JP-A-59 173510 (HONDA) 01 Oktober 1984, *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566059A1 (fr) * 1992-04-14 1993-10-20 RFT S.p.A. Etanchéité de tige se déplaçant contre l'action de moyens élastiques, en particulier pour tige de soupape de moteur à combustion interne
EP1164257A1 (fr) * 2000-06-14 2001-12-19 Firma Carl Freudenberg Ensemble de soupape pour moteur à combustion interne

Also Published As

Publication number Publication date
DE4017010C2 (fr) 1993-05-13
DE4017010A1 (de) 1991-11-28

Similar Documents

Publication Publication Date Title
EP0774568B1 (fr) Dispositif d'étanchéité pour une queue de soupape
DE69110900T2 (de) Auf einer brennstoffleitung montierter druckregler.
DE69017285T2 (de) Kegelstumpfförmiges Ventilschaft-Dichtungselement.
DE4119952A1 (de) Ventilschaftabdichtung
EP1588086B1 (fr) Raccords de tuyaux
DE3222356C2 (de) Ventilschaftabdichtung für Brennkraftmaschinen
DE29813935U1 (de) Unlösbare Preßverbindung zwischen einem Fitting und einem Metallrohrende
DE69312664T2 (de) Abdichtvorrichtung
DE4041677A1 (de) Rohrverschraubung mit schneidring
DE2264448A1 (de) Innendichtung fuer kolben von rotationskolben - brennkraftmaschinen
EP1024322B1 (fr) Manchon de raccord
DE4017010C2 (fr)
EP0360252B1 (fr) Couvercle de fermeture pour l'orifice de remplissage d'un réservoir à réfrigérant dans des systèmes de refroidissement de véhicules automobiles
EP0571663B1 (fr) Tuyau d'admission pour un moteur à combustion interne
EP0144590B1 (fr) Fixation d'un soufflet d'étanchéité au corps d'un joint à rotule
DE3326811A1 (de) Schaft- oder wellenabdichtung, insbesondere ventilschaftabdichtung
DE69313907T2 (de) Dichtung für eine gegen Federkraft gleitende Stange, insbesondere für einen Ventilschaft einer Brennkraftmaschine
DE19523825A1 (de) Metallische Flachdichtung
DE102008053386A1 (de) Drehmomentwandler mit Schutzring gegen Schweissverunreinigung
DE7925908U1 (de) Gleitringdichtung
DE3631053C2 (fr)
DE3836578C2 (fr)
DE3513162C2 (fr)
DE4112937C2 (fr)
DE4016020A1 (de) Gehaeuseverschlussdeckel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19920416

17Q First examination report despatched

Effective date: 19920703

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19930805