DE59404017D1 - Valve stem seal for sliding onto a valve stem guide held in the cylinder head of an internal combustion engine - Google Patents

Valve stem seal for sliding onto a valve stem guide held in the cylinder head of an internal combustion engine

Info

Publication number
DE59404017D1
DE59404017D1 DE59404017T DE59404017T DE59404017D1 DE 59404017 D1 DE59404017 D1 DE 59404017D1 DE 59404017 T DE59404017 T DE 59404017T DE 59404017 T DE59404017 T DE 59404017T DE 59404017 D1 DE59404017 D1 DE 59404017D1
Authority
DE
Germany
Prior art keywords
valve stem
combustion engine
internal combustion
cylinder head
sliding onto
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.)
Revoked
Application number
DE59404017T
Other languages
German (de)
Inventor
Alberto Gallo
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11411756&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE59404017(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Application granted granted Critical
Publication of DE59404017D1 publication Critical patent/DE59404017D1/en
Anticipated expiration legal-status Critical
Revoked 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
DE59404017T 1993-09-28 1994-07-05 Valve stem seal for sliding onto a valve stem guide held in the cylinder head of an internal combustion engine Revoked DE59404017D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930705A IT1261592B (en) 1993-09-28 1993-09-28 SEAL FOR A VALVE OF AN INTERNAL COMBUSTION ENGINE

Publications (1)

Publication Number Publication Date
DE59404017D1 true DE59404017D1 (en) 1997-10-16

Family

ID=11411756

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59404017T Revoked DE59404017D1 (en) 1993-09-28 1994-07-05 Valve stem seal for sliding onto a valve stem guide held in the cylinder head of an internal combustion engine

Country Status (4)

Country Link
EP (1) EP0645524B1 (en)
DE (1) DE59404017D1 (en)
ES (1) ES2108342T3 (en)
IT (1) IT1261592B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2867226A1 (en) * 2004-03-05 2005-09-09 Simcoo Valve stem sealing unit for heat engine of e.g. lawn mower, has valve seal interposed between valve guide and valve stem, and spring maintained in place on stem by retainer to ensure return of tulip on base

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT7967950A0 (en) * 1979-05-07 1979-05-07 Supertex Spa ASSEMBLY CONSISTING OF A SEAL FOR VALVE STEMS AND A SPRING SUPPORT CAP
GB8629408D0 (en) * 1986-12-09 1987-01-21 Ford Motor Co Valve assembly
US4834037A (en) * 1987-10-14 1989-05-30 Dana Corporation Unitary molded plastic valve seal
US5295461A (en) * 1992-04-13 1994-03-22 Ford Motor Company Oil-starved valve assembly
US5207196A (en) * 1992-07-31 1993-05-04 Trw Inc. Pre-assembled unit for engine valve system

Also Published As

Publication number Publication date
EP0645524A1 (en) 1995-03-29
ITTO930705A1 (en) 1995-03-28
EP0645524B1 (en) 1997-09-10
ES2108342T3 (en) 1997-12-16
ITTO930705A0 (en) 1993-09-28
IT1261592B (en) 1996-05-23

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation