EP 1087109 A3 20020814 - Valve drive for internal combustion engine
Title (en)
Valve drive for internal combustion engine
Title (de)
Ventilantrieb für ein Ventil eines Verbrennungsmotors
Title (fr)
Actionneur de soupape de moteur à combustion interne
Publication
Application
Priority
AT 161799 A 19990922
Abstract (en)
[origin: EP1087109A2] The actuator has an auxiliary piston (ZK) and a main piston (HK) held apart by a spring (F). Pressurised oil gains access through a restrictor bore (B) in the auxiliary valve to the main piston to open the valve. On the closing stroke the oil is rapidly ejected through the feed pipe (L) until a stop (A) on the auxiliary valve reaches the cylinder and the main cylinder continues to move over the distance (As) forcing the oil at a slower rate through the restrictor
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F01L 9/10 (2021.01 - EP US)
Citation (search report)
- [A] CH 243908 A 19460815 - SCHWEIZERISCHE LOKOMOTIV [CH]
- [A] US 5275136 A 19940104 - SCHECHTER MICHAEL M [US], et al
- [A] DE 4411857 A1 19941110 - FORD WERKE AG [DE]
- [A] DE 19749302 A1 19990512 - BAYERISCHE MOTOREN WERKE AG [DE]
- [A] EP 0652355 A1 19950510 - NIIGATA ENGINEERING CO LTD [JP], et al
- [A] DE 4443169 A1 19960613 - DENS JUERGEN DIPL ING DIPL WIR [DE]
- [A] PATENT ABSTRACTS OF JAPAN vol. 010, no. 126 (M - 477) 10 May 1986 (1986-05-10)
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 1087109 A2 20010328; EP 1087109 A3 20020814; EP 1087109 B1 20030910; AT 410696 B 20030625; AT A161799 A 20021115; AT E249574 T1 20030915; DE 50003618 D1 20031016; ES 2203385 T3 20040416; US 6382147 B1 20020507
DOCDB simple family (application)
EP 00120615 A 20000921; AT 00120615 T 20000921; AT 161799 A 19990922; DE 50003618 T 20000921; ES 00120615 T 20000921; US 66682100 A 20000921