EP 2060754 A3 20100505 - Hydraulic unit for a cylinder head for a combustion engine with a variable valve stroke
Title (en)
Hydraulic unit for a cylinder head for a combustion engine with a variable valve stroke
Title (de)
Hydraulikeinheit für einen Zylinderkopf einer Brennkraftmaschine mit hydraulisch variablem Ventiltrieb
Title (fr)
Unité hydraulique pour culasse d'un moteur à combustion interne dotée d'une commande de soupape hydraulique variable
Publication
Application
Priority
DE 102007054376 A 20071114
Abstract (en)
[origin: EP2060754A2] The hydraulic unit (5) has a slave unit (8) activating a gas-exchange valve. A hydraulic housing is provided with a bottom part (20) and a top part (22). A master unit (6), a slave unit, a high-pressure chamber, a hydraulic valve (10) and a medium-pressure chamber (12) are in connection with the hydraulic housing. A low-pressure chamber (16) used as a hydraulic medium reservoir is formed in the top part and communicates with the medium-pressure chamber through a choke opening that is formed through a separating wall extending between the low-pressure chamber and the medium-pressure chamber.
IPC 8 full level
F01L 9/14 (2021.01)
CPC (source: EP KR US)
F01L 9/14 (2021.01 - EP US); F01L 13/00 (2013.01 - KR); F01L 2001/34446 (2013.01 - EP US); F01L 2820/02 (2013.01 - EP US)
Citation (search report)
- [XI] EP 1243761 A1 20020925 - FIAT RICERCHE [IT]
- [XI] DE 3604233 A1 19870813 - BOSCH GMBH ROBERT [DE]
- [A] DE 4206696 A1 19930909 - BOSCH GMBH ROBERT [DE]
- [A] EP 1362990 A2 20031119 - CATERPILLAR INC [US]
- [A] JP H04301104 A 19921023 - HONDA MOTOR CO LTD
- [A] JP H02221610 A 19900904 - HONDA MOTOR CO LTD
- [A] EP 1353056 A1 20031015 - EATON CORP [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2060754 A2 20090520; EP 2060754 A3 20100505; EP 2060754 B1 20111214; CN 101435353 A 20090520; CN 101435353 B 20130327; DE 102007054376 A1 20090520; JP 2009121481 A 20090604; JP 5354260 B2 20131127; KR 101515636 B1 20150427; KR 20090049999 A 20090519; US 2009120389 A1 20090514; US 8020526 B2 20110920
DOCDB simple family (application)
EP 08167285 A 20081022; CN 200810173359 A 20081113; DE 102007054376 A 20071114; JP 2008291700 A 20081114; KR 20080112489 A 20081113; US 27103108 A 20081114