Patent ID: 8327815
Filing Date: 2012-12-11
Classification: F01L

Abstract:
1. An adjustable camshaft that is connected to a drive, by way of a sprocket/belt pulley comprising: a phase adjusting device for adjusting the phases between the camshaft and the drive, wherein the phase adjusting device comprises a planetary gear having at least two sun wheels that are arranged coaxially to one another and also comprising planet wheels surrounding said sun wheels, wherein a first sun wheel is connected in a rotationally-fixed manner to the sprocket/belt pulley and accordingly to the drive, and a second sun wheel is attached in a rotationally-fixed manner to the camshaft, and the planet wheels are each rotatably mounted on a planet wheel carrier by way of a planet wheel axis, wherein the planet wheel carrier is rotatably mounted with regard to a camshaft axis in such that a rotation of the planet wheel carrier affects a phase adjustment between the camshaft and the drive, wherein the first sun wheel is one of a component of the sprocket/belt pulley and is configured as integral therewith, and wherein the camshaft comprises: i. an interior shaft that is coaxially arranged in an exterior shaft, wherein the interior shaft is connected in a rotationally-fixed manner to first cams and the exterior shaft is connected in a rotationally-fixed manner to second cams, and wherein the interior shaft is rotatably mounted relative to the exterior shaft, and ii. a second phase adjusting device is provided for the generation of relative motion.