EP 3268588 A1 20180117 - CAMSHAFT HAVING A DECOMPRESSION DEVICE
Title (en)
CAMSHAFT HAVING A DECOMPRESSION DEVICE
Title (de)
NOCKENWELLE MIT EINER DEKOMPRESSIONSVORRICHTUNG
Title (fr)
ARBRE À CAMES PRÉSENTANT UN DISPOSITIF DE DÉCOMPRESSION
Publication
Application
Priority
- DE 102015204550 A 20150313
- EP 2016051629 W 20160127
Abstract (en)
[origin: WO2016146284A1] The invention relates to a camshaft (1) having a decompression device for an internal combustion engine, wherein a valve lifter (4) is rotatably supported in a base circle (2) of a cam (3), which can be brought into operative connection with a gas exchange valve by means of rotation, which valve lifter is operatively connected to a centrifugal weight (5), which is arranged coaxially to the camshaft and which is rotatably supported, in such a way that the valve lifter (4) forms a contour of the base circle in the region of action with the gas exchange valve from a certain rotational speed of the camshaft (1), wherein the camshaft has a cavity (6) in the region of the centrifugal weight (5), to which cavity lubricant pressure can be applied, and a radial first bore (7) from the cavity to the centrifugal weight is arranged in the camshaft (1), wherein a slidable element (8) that can be displaced by the lubricant pressure is arranged in the first bore. By means of the design of the camshaft according to the invention, an unstable centrifugal weight is stabilized and thus the acoustics are improved.
IPC 8 full level
F01L 13/08 (2006.01)
CPC (source: CN EP US)
F01L 1/08 (2013.01 - CN EP US); F01L 1/18 (2013.01 - US); F01L 13/085 (2013.01 - CN EP US); F01L 2810/02 (2013.01 - CN EP US); F01L 2810/04 (2013.01 - CN EP US)
Citation (search report)
See references of WO 2016146284A1
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)
DE 102015204550 A1 20160915; CN 107109976 A 20170829; CN 107109976 B 20190906; EP 3268588 A1 20180117; EP 3268588 B1 20190306; JP 2018507983 A 20180322; JP 6391199 B2 20180919; US 10400640 B2 20190903; US 2017292417 A1 20171012; WO 2016146284 A1 20160922
DOCDB simple family (application)
DE 102015204550 A 20150313; CN 201680003550 A 20160127; EP 16701542 A 20160127; EP 2016051629 W 20160127; JP 2017548101 A 20160127; US 201715634164 A 20170627