EP 0787893 B1 20010404 - Valve drive comprising pneumatic return spring for an internal combustion engine
Title (en)
Valve drive comprising pneumatic return spring for an internal combustion engine
Title (de)
Ventiltrieb für Brennkraftmaschinen mit einer pneumatischen Schliessfeder für ein Gaswechselventil
Title (fr)
Commande de soupape à ressort de rappel pneumatique pour moteur à combustion interne
Publication
Application
Priority
DE 19603536 A 19960201
Abstract (en)
[origin: EP0787893A1] The valve actuator comprises a locking spring (7) cylinder (10) which is arranged at least in the lift area of the locking spring piston (14) with cooling medium force-circulated in the cooling jacket (22) of the liquid cooled internal combustion engine. The housing (9) for location of the locking spring has a circumferential slot (19) extending over the lift area of the locking spring piston for a cooling medium directing chamber (18) formed with the cylinder.
IPC 1-7
IPC 8 full level
F01L 1/46 (2006.01); F01P 3/14 (2006.01); F01P 3/00 (2006.01)
CPC (source: EP)
F01L 1/465 (2013.01); F01P 3/14 (2013.01); F01P 2003/006 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0787893 A1 19970806; EP 0787893 B1 20010404; DE 19603536 A1 19970807; DE 19603536 C2 19990114; DE 59606719 D1 20010510
DOCDB simple family (application)
EP 96119256 A 19961202; DE 19603536 A 19960201; DE 59606719 T 19961202