EP 3683412 A1 20200722 - CONCENTRIC CAMSHAFT
Title (en)
CONCENTRIC CAMSHAFT
Title (de)
KONZENTRISCHE NOCKENWELLE
Title (fr)
ARBRE À CAMES CONCENTRIQUE
Publication
Application
Priority
EP 19152736 A 20190121
Abstract (en)
A concentric camshaft is disclosed for an internal combustion engine. The camshaft comprises an outer tube, an inner shaft, and two groups of cam lobes. A first group of cam lobes is fixed for rotation with the outer tube, and the second group of cam lobes is for rotation with the inner shaft by use of at least one drive member, In the invention, the inner shaft is a formed as tube which has a region where both the inner and outer diameter are reduced, and the inner surface of the inner tube in the latter region features a threaded portion.
IPC 8 full level
F01L 1/047 (2006.01); F01L 1/344 (2006.01)
CPC (source: EP)
F01L 1/047 (2013.01); F01L 1/34413 (2013.01); F01L 2001/0473 (2013.01); F01L 2001/0475 (2013.01); F01L 2303/00 (2020.05); F01L 2303/01 (2020.05)
Citation (search report)
- [XY] US 2014283773 A1 20140925 - ELFERS UWE [DE]
- [X] US 2017183981 A1 20170629 - WEIDAUER MARCEL [DE], et al
- [Y] EP 3000995 A1 20160330 - MECHADYNE INTERNAT LTD [GB]
- [Y] US 2010170458 A1 20100708 - PLUTA CHRISTOPHER J [US], et al
- [Y] US 2010223771 A1 20100909 - CLEVER GLENN E [US], et al
- [Y] EP 3176390 A1 20170607 - MAHLE INT GMBH [DE]
- [A] DE 102008023066 A1 20091112 - HYDRAULIK RING GMBH [DE], et al
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 19152736 A 20190121; IB 2019061302 W 20191223