EP 1053388 A1 20001122 - LIGHTWEIGHT VALVE
Title (en)
LIGHTWEIGHT VALVE
Title (de)
LEICHTBAUVENTIL
Title (fr)
SOUPAPE LEGERE
Publication
Application
Priority
- DE 19804053 A 19980203
- EP 9900561 W 19990128
Abstract (en)
[origin: DE19804053A1] The invention relates to a hollow-stem valve for an internal combustion engine. Said valve has a ratio of wall thickness to stem diameter of less than 1:3. The aim of the invention is to minimise the deformation of the valve head. To this end, the valve disk rests directly against the stem.
IPC 1-7
IPC 8 full level
F01L 3/02 (2006.01); F01L 3/04 (2006.01); F01L 3/12 (2006.01); F01L 3/20 (2006.01)
CPC (source: EP US)
F01L 3/02 (2013.01 - EP US); F01L 3/04 (2013.01 - EP US); F01L 3/12 (2013.01 - EP US); F01L 3/20 (2013.01 - EP US); Y10T 29/49307 (2015.01 - EP US)
Citation (search report)
See references of WO 9940295A1
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
DE 19804053 A1 19990805; AR 018055 A1 20011031; BR 9908554 A 20011030; DE 59908022 D1 20040122; EP 1053388 A1 20001122; EP 1053388 B1 20031210; EP 1359292 A1 20031105; JP 2002502928 A 20020129; JP 4282900 B2 20090624; US 6354258 B1 20020312; WO 9940295 A1 19990812
DOCDB simple family (application)
DE 19804053 A 19980203; AR P990100450 A 19990203; BR 9908554 A 19990128; DE 59908022 T 19990128; EP 03014001 A 19990128; EP 9900561 W 19990128; EP 99908830 A 19990128; JP 2000530689 A 19990128; US 60149700 A 20000801