EP 1143115 A3 20030102 - Return spring arrangement for valve operation of an internal combustion engine
Title (en)
Return spring arrangement for valve operation of an internal combustion engine
Title (de)
Schliessfeder-Vorrichtung für den Ventiltrieb eines Gaswechselventils einer Brennkraftmaschine
Title (fr)
Dispositif de ressort pour l'opération d'une soupape d'un moteur à combustion interne
Publication
Application
Priority
DE 10016878 A 20000405
Abstract (en)
[origin: EP1143115A2] The device (1) has a mechanical spring (3) and a gas spring (4) that is controlled at a given engine rpm range, which are connected in parallel to close the gas shuttle valve (2). The gas spring has a piston (6) that moves to close a chamber (5). The gas spring piston is formed as a rammer (7) with a piston shroud (9) sealingly sliding in the chamber to separate it from the gas spring chamber. The gas spring is supplied from the pump space, which is controlled by a medium, over a controlled overflow channel (10) for the compressed medium during the maximum opening stroke of the gas shuttle valve.
IPC 1-7
IPC 8 full level
F01L 1/14 (2006.01); F01L 1/46 (2006.01); F01L 3/10 (2006.01)
CPC (source: EP)
F01L 1/143 (2013.01); F01L 1/465 (2013.01); F01L 3/10 (2013.01)
Citation (search report)
- [A] DE 3808542 A1 19881006 - VOLKSWAGEN AG [DE]
- [A] DE 4214839 A1 19931111 - AUDI AG [DE]
- [A] EP 0824180 A1 19980218 - BAYERISCHE MOTOREN WERKE AG [DE]
- [A] EP 0396327 A1 19901107 - HONDA MOTOR CO LTD [JP]
- [A] EP 0269587 A1 19880601 - VOLVO AB [SE]
- [A] DE 2949413 A1 19810611 - VOLKSWAGENWERK AG [DE]
- [A] EP 0787893 A1 19970806 - BAYERISCHE MOTOREN WERKE AG [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1143115 A2 20011010; EP 1143115 A3 20030102; EP 1143115 B1 20040128; DE 10016878 A1 20011018; DE 50101377 D1 20040304; ES 2213650 T3 20040901
DOCDB simple family (application)
EP 01108364 A 20010403; DE 10016878 A 20000405; DE 50101377 T 20010403; ES 01108364 T 20010403