EP 2236777 A1 20101006 - ACTUATOR FOR VARIABLE VALVE MECHANISM
Title (en)
ACTUATOR FOR VARIABLE VALVE MECHANISM
Title (de)
AKTUATOR FÜR EINEN VARIABLEN VENTILMECHANISMUS
Title (fr)
ACTIONNEUR POUR MÉCANISME À SOUPAPES VARIABLES
Publication
Application
Priority
- JP 2009051101 W 20090123
- JP 2008022516 A 20080201
- JP 2008022517 A 20080201
- JP 2008022518 A 20080201
- JP 2008022519 A 20080201
Abstract (en)
A worm (22) and a worm wheel (23) are meshed in an oil storage chamber (34) formed in an actuator housing (18) which rotatably supports a worm shaft (27), a projecting portion (18p) which projects so as to surround the outer periphery of the worm (22) is formed on the inner wall surface of the oil storage chamber (34), an oil jet (18) is open to the inner peripheral surface of the projecting portion (18p) facing the outer periphery of the worm (22), and the opening of the oil jet (18r) is formed at a position overlapping with the worm (22) when viewed from above, whereby oil jetted from the oil jet (18r) flows down by gravity and touches the worm (22) and the oil is held between the worm and the projecting portion (18p) of the actuator housing (18) facing the outer periphery of the worm (22), so the lubricating effect can be improved by causing the oil to fully act on the meshed portion between the worm (22) and the worm wheel (23).
IPC 8 full level
F01L 1/34 (2006.01); F01L 13/00 (2006.01)
CPC (source: EP)
F01L 1/34 (2013.01); F01L 1/352 (2013.01); F01L 13/00 (2013.01); F01L 13/06 (2013.01); F01L 13/065 (2013.01); F01L 2001/0476 (2013.01); F01L 2001/186 (2013.01); F01L 2800/10 (2013.01); F01L 2820/032 (2013.01); F01M 2011/026 (2013.01)
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 MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2236777 A1 20101006; EP 2236777 A4 20110216; WO 2009096337 A1 20090806
DOCDB simple family (application)
EP 09705652 A 20090123; JP 2009051101 W 20090123