EP1338762A3 - Valve stem seal for internal combustion engine - Google Patents

Valve stem seal for internal combustion engine Download PDF

Info

Publication number
EP1338762A3
EP1338762A3 EP03002943A EP03002943A EP1338762A3 EP 1338762 A3 EP1338762 A3 EP 1338762A3 EP 03002943 A EP03002943 A EP 03002943A EP 03002943 A EP03002943 A EP 03002943A EP 1338762 A3 EP1338762 A3 EP 1338762A3
Authority
EP
European Patent Office
Prior art keywords
valve stem
internal combustion
combustion engine
stem seal
holding 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.)
Granted
Application number
EP03002943A
Other languages
German (de)
French (fr)
Other versions
EP1338762B1 (en
EP1338762A2 (en
Inventor
Massimo Martelli
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
Publication of EP1338762A2 publication Critical patent/EP1338762A2/en
Publication of EP1338762A3 publication Critical patent/EP1338762A3/en
Application granted granted Critical
Publication of EP1338762B1 publication Critical patent/EP1338762B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F01L2301/00—Using particular materials

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)

Abstract

Ventilschaftabdichtung an Verbrennungskraftmaschinen mit einem am Ventilschaft radiale und an der Ventilschaftführung axial anliegenden Dichtelement aus einem polymeren Material und einem das Dichtelement haltenden hülsenförmigen Halteteil wobei das Halteteil (2) im Querschnitt eine polygonartige Form hat, die an der Außenwand (5) der Ventilschaftführung (6) anliegende Wandteile (4) aufweist.

Figure imgaf001
Valve stem seal on internal combustion engines with a valve element on the radial and on the valve stem axially abutting sealing element made of a polymeric material and a sealing member holding sleeve-shaped holding part wherein the holding part (2) in cross-section has a polygonal shape, on the outer wall (5) of the valve stem guide (6 ) has adjacent wall parts (4).
Figure imgaf001
EP03002943A 2002-02-25 2003-02-11 Valve stem seal for internal combustion engine Expired - Lifetime EP1338762B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10207818 2002-02-25
DE10207818A DE10207818B4 (en) 2002-02-25 2002-02-25 Valve stem seal on internal combustion engines

Publications (3)

Publication Number Publication Date
EP1338762A2 EP1338762A2 (en) 2003-08-27
EP1338762A3 true EP1338762A3 (en) 2006-10-18
EP1338762B1 EP1338762B1 (en) 2008-08-20

Family

ID=27635272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002943A Expired - Lifetime EP1338762B1 (en) 2002-02-25 2003-02-11 Valve stem seal for internal combustion engine

Country Status (7)

Country Link
US (1) US20030160394A1 (en)
EP (1) EP1338762B1 (en)
JP (1) JP2003254020A (en)
CN (1) CN1255621C (en)
AT (1) ATE405727T1 (en)
BR (1) BR0300460A (en)
DE (2) DE10207818B4 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1749980B1 (en) * 2005-08-01 2011-03-09 CORCOS INDUSTRIALE S.a.s. di Externa Italia S.r.l. Gasket for a valve of an internal combustion engine
JP2008205170A (en) * 2007-02-20 2008-09-04 Nec Lighting Ltd Light-emitting semiconductor device
US8011669B2 (en) * 2007-12-06 2011-09-06 Freudenberg-Nok General Partnership Valve stem seal with gas relief features
US8235394B2 (en) * 2007-12-06 2012-08-07 Freudenberg-Nok General Partnership Valve stem seal with gas relief features
US9371749B2 (en) 2012-02-08 2016-06-21 Dana Automotive Systems Group, Llc Hybrid valve stem seal retainer assembly
US8893681B2 (en) * 2013-03-07 2014-11-25 Freudenberg-Nok General Partnership Pressure support for engine valve stem seals
DE102015209427A1 (en) 2015-05-22 2016-11-24 Aktiebolaget Skf Seal for sealing a valve stem, tool and method for mounting a seal on a guide member of a valve stem
DE102017202585A1 (en) * 2016-02-17 2017-08-17 Mahle International Gmbh Internal combustion engine with at least one cylinder and with at least two hollow-head valves

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554180A (en) * 1969-03-21 1971-01-12 Gen Motors Corp Valve stem seal
US4531483A (en) * 1981-09-18 1985-07-30 Goetze Ag Lip sealing ring in an internal combustion engine
EP0310455A1 (en) * 1987-10-02 1989-04-05 K-Line Industries, Inc. Valve seal retainer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US85374A (en) * 1868-12-29 Improved screw-peg for boots and shoes
US2157866A (en) * 1935-12-24 1939-05-09 Wilkening Mfg Co Valve stem packing
US5174256A (en) * 1991-11-25 1992-12-29 Dana Corporation Variable guide height valve seal
DE19736321A1 (en) * 1997-08-21 1999-03-11 Cr Elastomere Gmbh Sealing for machine parts that reciprocate relative to each other
DE19949248A1 (en) * 1999-10-13 2001-04-19 Freudenberg Carl Fa Valve stem seal
DE10151606C1 (en) * 2001-10-18 2002-10-17 Skf Ab Valve shaft seal has a stiffening ring to carry the seal, with a cylindrical section to center the valve spring and a radial end section for the spring support without damage from the sharp spring end

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554180A (en) * 1969-03-21 1971-01-12 Gen Motors Corp Valve stem seal
US4531483A (en) * 1981-09-18 1985-07-30 Goetze Ag Lip sealing ring in an internal combustion engine
EP0310455A1 (en) * 1987-10-02 1989-04-05 K-Line Industries, Inc. Valve seal retainer

Also Published As

Publication number Publication date
BR0300460A (en) 2004-08-17
DE50310336D1 (en) 2008-10-02
CN1255621C (en) 2006-05-10
DE10207818B4 (en) 2006-04-06
EP1338762B1 (en) 2008-08-20
EP1338762A2 (en) 2003-08-27
ATE405727T1 (en) 2008-09-15
JP2003254020A (en) 2003-09-10
CN1441151A (en) 2003-09-10
US20030160394A1 (en) 2003-08-28
DE10207818A1 (en) 2003-09-18

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