EP 0911493 A2 19990428 - Improved tip structures for an ultra light engine valve
Title (en)
Improved tip structures for an ultra light engine valve
Title (de)
Verbesserte Spitzengestaltung in einem ultraleichten Brennkraftmaschinenventil
Title (fr)
Embout à structure améliorée pour soupape de moteur ultra - légère
Publication
Application
Priority
US 95518897 A 19971021
Abstract (en)
An ultra light poppet valve (11) having increased stiffness at its tip end. The valve includes a stem (13) which is formed as a thin-walled, elongated cup member having a closed tip portion (19) and a flared open end (17). To which a disk-like cap member (15) is fixed. The stiffness of the tip is increased by various means including members (43;61) added to the tip portion (19), members (47;49) inserted within the tip portion, hard surfaces (53;53a) deposited on the tip portion, and members (43b;73) inserted within openings (71) in the end of the tip portion. <IMAGE>
IPC 1-7
IPC 8 full level
F01L 3/02 (2006.01); F01L 3/14 (2006.01); F01L 3/20 (2006.01); F01L 3/24 (2006.01)
CPC (source: EP)
F01L 3/02 (2013.01); F01L 3/14 (2013.01); F01L 3/20 (2013.01)
Citation (applicant)
US 5413073 A 19950509 - LARSON JAY M [US], et al
Citation (third parties)
Third party :
US 4173035 A 19791030 - HOYT STEVEN D [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0911493 A2 19990428; EP 0911493 A3 20000412; JP H11210429 A 19990803
DOCDB simple family (application)
EP 98308461 A 19981015; JP 30012098 A 19981021