EP 1633957 A1 20060315 - VALVE STEM SEAL FOR INTERNAL COMBUSTION ENGINES
Title (en)
VALVE STEM SEAL FOR INTERNAL COMBUSTION ENGINES
Title (de)
VENTILSCHAFTABDICHTUNG FÜR BRENNKRAFTMASCHINEN
Title (fr)
JOINT DE TIGE DE SOUPAPE DESTINE A DES MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- EP 2004002324 W 20040306
- DE 10325764 A 20030605
Abstract (en)
[origin: WO2004109067A1] The invention relates to a valve stem seal for internal combustion engines, comprising a dynamic sealing part applied to a valve stem, and a static sealing part which consists of elastomer materials and is applied to the valve stem guide, said static sealing part being surrounded by a dimensionally stable reinforcing body. The inventive seal is characterised by a bearing ring (14,20) that is separate from the reinforcing ring (7) of the static sealing part (6) and enables a free rotational movement of the valve spring (11) and the valve spring retainer.
IPC 1-7
IPC 8 full level
F01L 1/32 (2006.01); F01L 1/46 (2006.01); F01L 3/08 (2006.01)
CPC (source: EP)
F01L 1/32 (2013.01); F01L 1/462 (2013.01); F01L 3/08 (2013.01); F01L 2301/00 (2020.05)
Citation (search report)
See references of WO 2004109067A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2004109067 A1 20041216; DE 10325764 B3 20050804; DE 502004010167 D1 20091112; EP 1633957 A1 20060315; EP 1633957 B1 20090930
DOCDB simple family (application)
EP 2004002324 W 20040306; DE 10325764 A 20030605; DE 502004010167 T 20040306; EP 04718203 A 20040306