EP 1120548 B1 20050727 - Engine valve drive with electromagnetic actuators comprising pneumatic return springs
Title (en)
Engine valve drive with electromagnetic actuators comprising pneumatic return springs
Title (de)
Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedern ausgerüsteten elektro-magnetischen Aktor
Title (fr)
Commande de soupape de moteur à combustion interne par actionneur électromagnétique muni de ressorts de rappel pneumatiques
Publication
Application
Priority
DE 10003116 A 20000126
Abstract (en)
[origin: EP1120548A2] The valve control (1) has an electromagnetic actuator (2) provided with gas springs (3,4), with an armature (6) coupled to the engine gas changing valve (5) provided by a separation piston (13) between the gas springs, displaced within a cylinder (12) between a closure magnet (7) and an opening magnet (8) against the return force of the gas springs. The latter have gas entry and exit valves (10,11) controlled in dependence on the engine load range for altering the spring characteristic.
IPC 1-7
IPC 8 full level
F01L 9/20 (2021.01)
CPC (source: EP)
F01L 9/20 (2021.01)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 1120548 A2 20010801; EP 1120548 A3 20011205; EP 1120548 B1 20050727; DE 10003116 A1 20010802; DE 50010827 D1 20050901; ES 2242574 T3 20051116
DOCDB simple family (application)
EP 00126373 A 20001202; DE 10003116 A 20000126; DE 50010827 T 20001202; ES 00126373 T 20001202